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55ded5e984fb420aa04339bb7d9b9f8a320d05b6
UnrealEngineUWP/Engine/Source/Programs/UnrealHeaderTool/Private/CodeGenerator.cpp
bryan sefcik 55ded5e984 Fixed an issue where the generated cpp files weren't including all the needed headers. It relied on the original header that generated the cpp to include all the headers which is a problem because the header could forward declare the types. 
#JIRA
#preflight 62fa903bae3edb54c9a08b6e

#ROBOMERGE-OWNER: bryan.sefcik
#ROBOMERGE-AUTHOR: bryan.sefcik
#ROBOMERGE-SOURCE: CL 21392760 via CL 21396083 via CL 21396090
#ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v975-21357124)

[CL 21399837 by bryan sefcik in ue5-main branch]
2022-08-15 21:49:10 -04:00

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// Copyright Epic Games, Inc. All Rights Reserved.
#include "CoreMinimal.h"
#include "UnrealHeaderTool.h"
#include "Misc/AssertionMacros.h"
#include "HAL/PlatformProcess.h"
#include "Templates/UnrealTemplate.h"
#include "Math/UnrealMathUtility.h"
#include "Containers/UnrealString.h"
#include "UObject/NameTypes.h"
#include "Logging/LogMacros.h"
#include "CoreGlobals.h"
#include "HAL/FileManager.h"
#include "Misc/Parse.h"
#include "Misc/CoreMisc.h"
#include "Misc/CommandLine.h"
#include "Misc/FileHelper.h"
#include "Misc/Paths.h"
#include "Delegates/Delegate.h"
#include "Misc/Guid.h"
#include "Misc/ConfigCacheIni.h"
#include "Misc/FeedbackContext.h"
#include "Misc/OutputDeviceNull.h"
#include "UObject/ClassTree.h"
#include "UObject/Script.h"
#include "UObject/ObjectMacros.h"
#include "UObject/UObjectGlobals.h"
#include "UObject/Class.h"
#include "UObject/Package.h"
#include "UObject/MetaData.h"
#include "UObject/Interface.h"
#include "UObject/UnrealType.h"
#include "UObject/TextProperty.h"
#include "UObject/FieldPathProperty.h"
#include "Misc/PackageName.h"
#include "UnrealHeaderToolGlobals.h"
#include "Exceptions.h"
#include "Scope.h"
#include "HeaderProvider.h"
#include "GeneratedCodeVersion.h"
#include "UnrealSourceFile.h"
#include "ParserHelper.h"
#include "EngineAPI.h"
#include "ClassMaps.h"
#include "NativeClassExporter.h"
#include "ProfilingDebugging/ScopedTimers.h"
#include "HeaderParser.h"
#include "IScriptGeneratorPluginInterface.h"
#include "Manifest.h"
#include "StringUtils.h"
#include "Features/IModularFeatures.h"
#include "Algo/Copy.h"
#include "Algo/Sort.h"
#include "Algo/Reverse.h"
#include "Async/Async.h"
#include "Async/ParallelFor.h"
#include "Misc/ScopeExit.h"
#include "UnrealTypeDefinitionInfo.h"
#include "Misc/WildcardString.h"
#include "UObject/FieldIterator.h"
#include "UObject/FieldPath.h"
#include "UObject/WeakFieldPtr.h"
#include "Templates/SubclassOf.h"
#include <atomic>
/////////////////////////////////////////////////////
// Globals
FManifest GManifest;
double GMacroizeTime = 0.0;
static TArray<FString> ChangeMessages;
static bool bWriteContents = false;
static bool bVerifyContents = false;
static bool bIncludeDebugOutput = false;
bool bGoWide = true;
void ProcessParsedClass(FUnrealClassDefinitionInfo& ClassDef);
void ProcessParsedEnum(FUnrealEnumDefinitionInfo& EnumDef);
void ProcessParsedStruct(FUnrealScriptStructDefinitionInfo& ScriptStructDef);
// Array of all the temporary header async file tasks so we can ensure they have completed before issuing our timings
static FGraphEventArray GAsyncFileTasks;
// Globals for common class definitions
FUnrealClassDefinitionInfo* GUObjectDef = nullptr;
FUnrealClassDefinitionInfo* GUClassDef = nullptr;
FUnrealClassDefinitionInfo* GUInterfaceDef = nullptr;
// Busy wait support for holes in the include graph issues
std::atomic<int> GSourcesToParse = 0;
std::atomic<int> GSourcesParsing = 0;
std::atomic<int> GSourcesCompleted = 0;
std::atomic<int> GSourcesStalled = 0;
struct FFindDelcarationResults
{
bool bVirtualFound = false;
const FDeclaration* Declaration = nullptr;
int FunctionNameTokenIndex = -1;
bool WasFound() const
{
return Declaration != nullptr;
}
bool IsVirtual() const
{
return bVirtualFound;
}
};
FFindDelcarationResults FindDeclaration(const FUnrealStructDefinitionInfo& StructDef, const FString& Identifier);
namespace
{
static const FName NAME_SerializeToFArchive("SerializeToFArchive");
static const FName NAME_SerializeToFStructuredArchive("SerializeToFStructuredArchive");
static const FName NAME_ObjectInitializerConstructorDeclared("ObjectInitializerConstructorDeclared");
static const FName NAME_NoGetter("NoGetter");
static const FName NAME_GetByRef("GetByRef");
static const FString STRING_StructPackage(TEXT("StructPackage"));
static const int32 HEADER_GENERATED_DELEGATE_SIGNATURE_SUFFIX_LENGTH = FString(HEADER_GENERATED_DELEGATE_SIGNATURE_SUFFIX).Len();
static FString AsTEXT(const FString& InStr)
{
return FString::Printf(TEXT("TEXT(\"%s\")"), *InStr);
}
const TCHAR* HeaderCopyright =
TEXT("// Copyright Epic Games, Inc. All Rights Reserved.\r\n"
"/*===========================================================================\r\n"
"\tGenerated code exported from UnrealHeaderTool.\r\n"
"\tDO NOT modify this manually! Edit the corresponding .h files instead!\r\n"
"===========================================================================*/\r\n" LINE_TERMINATOR_ANSI);
const TCHAR* RequiredCPPIncludes = TEXT("#include \"UObject/GeneratedCppIncludes.h\"" LINE_TERMINATOR_ANSI);
const TCHAR* EnableDeprecationWarnings = TEXT("PRAGMA_ENABLE_DEPRECATION_WARNINGS" LINE_TERMINATOR_ANSI);
const TCHAR* DisableDeprecationWarnings = TEXT("PRAGMA_DISABLE_DEPRECATION_WARNINGS" LINE_TERMINATOR_ANSI);
// A struct which emits #if and #endif blocks as appropriate when invoked.
struct FMacroBlockEmitter
{
explicit FMacroBlockEmitter(FOutputDevice& InOutput, const TCHAR* InMacro)
: Output(InOutput)
, bEmittedIf(false)
, Macro(InMacro)
{
}
~FMacroBlockEmitter()
{
if (bEmittedIf)
{
Output.Logf(TEXT("#endif // %s\r\n"), Macro);
}
}
void operator()(bool bInBlock)
{
if (!bEmittedIf && bInBlock)
{
Output.Logf(TEXT("#if %s\r\n"), Macro);
bEmittedIf = true;
}
else if (bEmittedIf && !bInBlock)
{
Output.Logf(TEXT("#endif // %s\r\n"), Macro);
bEmittedIf = false;
}
}
FMacroBlockEmitter(const FMacroBlockEmitter&) = delete;
FMacroBlockEmitter& operator=(const FMacroBlockEmitter&) = delete;
private:
FOutputDevice& Output;
bool bEmittedIf;
const TCHAR* Macro;
};
/** Guard that should be put at the start editor only generated code */
const auto& BeginEditorOnlyGuard = TEXT("#if WITH_EDITOR" LINE_TERMINATOR_ANSI);
/** Guard that should be put at the end of editor only generated code */
const auto& EndEditorOnlyGuard = TEXT("#endif //WITH_EDITOR" LINE_TERMINATOR_ANSI);
/** Whether or not the given class has any replicated properties. */
static bool ClassHasReplicatedProperties(const FUnrealClassDefinitionInfo& ClassDef)
{
if (!ClassDef.HasAnyClassFlags(CLASS_ReplicationDataIsSetUp))
{
for (TSharedRef<FUnrealPropertyDefinitionInfo> PropertyDef : ClassDef.GetProperties())
{
if (PropertyDef->HasAnyPropertyFlags(CPF_Net))
{
return true;
}
}
}
return ClassDef.HasOwnedClassReps();
}
static void ExportNetData(FOutputDevice& Out, const FUnrealClassDefinitionInfo& ClassDef, const TCHAR* API)
{
const TArray<FUnrealPropertyDefinitionInfo*>& ClassReps = ClassDef.GetClassReps();
FUHTStringBuilder NetFieldBuilder;
NetFieldBuilder.Logf(TEXT(""
"\tenum class ENetFields_Private : uint16\r\n"
"\t{\r\n"
"\t\tNETFIELD_REP_START=(uint16)((int32)Super::ENetFields_Private::NETFIELD_REP_END + (int32)1),\r\n"));
FUHTStringBuilder ArrayDimBuilder;
bool bAnyStaticArrays = false;
bool bIsFirst = true;
for (int32 ClassRepIndex = ClassDef.GetFirstOwnedClassRep(); ClassRepIndex < ClassReps.Num(); ++ClassRepIndex)
{
const FUnrealPropertyDefinitionInfo* PropertyDef = ClassReps[ClassRepIndex];
const FString PropertyName = PropertyDef->GetName();
if (!PropertyDef->IsStaticArray())
{
if (UNLIKELY(bIsFirst))
{
NetFieldBuilder.Logf(TEXT("\t\t%s=NETFIELD_REP_START,\r\n"), *PropertyName);
bIsFirst = false;
}
else
{
NetFieldBuilder.Logf(TEXT("\t\t%s,\r\n"), *PropertyName);
}
}
else
{
bAnyStaticArrays = true;
ArrayDimBuilder.Logf(TEXT("\t\t%s=%s,\r\n"), *PropertyName, PropertyDef->GetArrayDimensions());
if (UNLIKELY(bIsFirst))
{
NetFieldBuilder.Logf(TEXT("\t\t%s_STATIC_ARRAY=NETFIELD_REP_START,\r\n"), *PropertyName);
bIsFirst = false;
}
else
{
NetFieldBuilder.Logf(TEXT("\t\t%s_STATIC_ARRAY,\r\n"), *PropertyName);
}
NetFieldBuilder.Logf(TEXT("\t\t%s_STATIC_ARRAY_END=((uint16)%s_STATIC_ARRAY + (uint16)EArrayDims_Private::%s - (uint16)1),\r\n"), *PropertyName, *PropertyName, *PropertyName);
}
}
const FUnrealPropertyDefinitionInfo* LastPropertyDef = ClassReps.Last();
NetFieldBuilder.Logf(TEXT("\t\tNETFIELD_REP_END=%s%s"), *LastPropertyDef->GetName(), LastPropertyDef->IsStaticArray() ? TEXT("_STATIC_ARRAY_END") : TEXT(""));
NetFieldBuilder.Log(TEXT("\t};"));
if (bAnyStaticArrays)
{
Out.Logf(TEXT(""
"\tenum class EArrayDims_Private : uint16\r\n"
"\t{\r\n"
"%s"
"\t};\r\n"), *ArrayDimBuilder);
}
Out.Logf(TEXT(""
"%s\r\n" // NetFields
"\t%s_API virtual void ValidateGeneratedRepEnums(const TArray<struct FRepRecord>& ClassReps) const override;\r\n"),
*NetFieldBuilder,
API);
}
static const FString STRING_GetLifetimeReplicatedPropsStr(TEXT("GetLifetimeReplicatedProps"));
static void WriteReplicatedMacroData(
const TCHAR* ClassCPPName,
const TCHAR* API,
FUnrealClassDefinitionInfo& ClassDef,
FOutputDevice& Writer,
const FUnrealSourceFile& SourceFile,
EExportClassOutFlags& OutFlags)
{
const bool bHasGetLifetimeReplicatedProps = FindDeclaration(ClassDef, STRING_GetLifetimeReplicatedPropsStr).WasFound();
if (!bHasGetLifetimeReplicatedProps)
{
// Default version autogenerates declarations.
if (ClassDef.GetGeneratedCodeVersion() == EGeneratedCodeVersion::V1)
{
Writer.Logf(TEXT("\tvoid GetLifetimeReplicatedProps(TArray<FLifetimeProperty>& OutLifetimeProps) const override;\r\n"));
}
else
{
ClassDef.Throwf(TEXT("Class %s has Net flagged properties and should declare member function: void GetLifetimeReplicatedProps(TArray<FLifetimeProperty>& OutLifetimeProps) const override"), ClassCPPName);
}
}
ExportNetData(Writer, ClassDef, API);
// If this class has replicated properties and it owns the first one, that means
// it's the base most replicated class. In that case, go ahead and add our interface macro.
if (ClassDef.HasClassReps() && ClassDef.GetFirstOwnedClassRep() == 0)
{
OutFlags |= EExportClassOutFlags::NeedsPushModelHeaders;
Writer.Logf(TEXT(
"private:\r\n"
"\tREPLICATED_BASE_CLASS(%s%s)\r\n"
"public:\r\n"
), ClassDef.GetPrefixCPP(), *ClassDef.GetName());
}
}
}
void FGeneratedFileInfo::StartLoad(FString&& InFilename)
{
ensureMsgf(Filename.IsEmpty(), TEXT("FPreloadHeaderFileInfo::StartLoad called twice with different paths."));
Filename = MoveTemp(InFilename);
if (bAllowSaveExportedHeaders)
{
auto LoadFileContentsTask = [this]()
{
SCOPE_SECONDS_COUNTER_UHT(LoadHeaderContentFromFile);
FFileHelper::LoadFileToString(OriginalContents, *Filename);
};
LoadTaskRef = FFunctionGraphTask::CreateAndDispatchWhenReady(MoveTemp(LoadFileContentsTask), TStatId());
}
}
void FGeneratedFileInfo::Load(FString&& InFilename)
{
ensureMsgf(Filename.IsEmpty(), TEXT("FPreloadHeaderFileInfo::StartLoad called twice with different paths."));
Filename = MoveTemp(InFilename);
if (bAllowSaveExportedHeaders)
{
SCOPE_SECONDS_COUNTER_UHT(LoadHeaderContentFromFile);
FFileHelper::LoadFileToString(OriginalContents, *Filename);
}
}
void FGeneratedFileInfo::GenerateBodyHash()
{
GeneratedBodyHash = GenerateTextHash(*GeneratedBody);
}
FGeneratedCPP::FGeneratedCPP(FUnrealPackageDefinitionInfo& InPackageDef, FUnrealSourceFile& InSourceFile)
: PackageDef(InPackageDef)
, SourceFile(InSourceFile)
, Header(InPackageDef.GetModule().SaveExportedHeaders)
, Source(InPackageDef.GetModule().SaveExportedHeaders)
{
}
void FGeneratedCPP::AddGenerateTaskRef(FGraphEventArray& Events) const
{
check(GenerateTaskRef.IsValid() || !SourceFile.ShouldExport());
if (GenerateTaskRef.IsValid())
{
Events.Add(GenerateTaskRef);
}
}
void FGeneratedCPP::AddExportTaskRef(FGraphEventArray& Events) const
{
check(ExportTaskRef.IsValid() || !SourceFile.ShouldExport());
if (ExportTaskRef.IsValid())
{
Events.Add(ExportTaskRef);
}
}
#define BEGIN_WRAP_EDITOR_ONLY(DoWrap) DoWrap ? BeginEditorOnlyGuard : TEXT("")
#define END_WRAP_EDITOR_ONLY(DoWrap) DoWrap ? EndEditorOnlyGuard : TEXT("")
FFindDelcarationResults FindDeclaration(const FUnrealStructDefinitionInfo& StructDef, const FString& Identifier)
{
FFindDelcarationResults Results;
if (Identifier.IsEmpty())
{
return Results;
}
for (const FDeclaration& Declaration : StructDef.GetDeclarations())
{
for (int32 Index = 0, EIndex = Declaration.Tokens.Num(); Index != EIndex; ++Index)
{
const FToken& Token = Declaration.Tokens[Index];
if (Token.IsIdentifier())
{
if (Token.IsValue(TEXT("virtual"), ESearchCase::CaseSensitive))
{
Results.bVirtualFound = true;
}
else if (Token.IsValue(*Identifier, ESearchCase::CaseSensitive))
{
Results.Declaration = &Declaration;
Results.FunctionNameTokenIndex = Index;
return Results;
}
}
}
}
return Results;
}
void ConvertToBuildIncludePath(const FManifestModule& Module, FString& LocalPath)
{
FPaths::MakePathRelativeTo(LocalPath, *Module.IncludeBase);
}
FString Macroize(const TCHAR* MacroName, FString&& StringToMacroize)
{
FScopedDurationTimer Tracker(GMacroizeTime);
FString Result(MoveTemp(StringToMacroize));
if (Result.Len())
{
Result.ReplaceInline(TEXT("\r\n"), TEXT("\n"), ESearchCase::CaseSensitive);
Result.ReplaceInline(TEXT("\n"), TEXT(" \\\n"), ESearchCase::CaseSensitive);
checkSlow(Result.EndsWith(TEXT(" \\\n"), ESearchCase::CaseSensitive));
if (Result.Len() >= 3)
{
for (int32 Index = Result.Len() - 3; Index < Result.Len(); ++Index)
{
Result[Index] = TEXT('\n');
}
}
else
{
Result = TEXT("\n\n\n");
}
Result.ReplaceInline(TEXT("\n"), TEXT("\r\n"), ESearchCase::CaseSensitive);
}
return FString::Printf(TEXT("#define %s%s\r\n%s"), MacroName, Result.Len() ? TEXT(" \\") : TEXT(""), *Result);
}
struct FParmsAndReturnProperties
{
bool HasParms() const
{
return Parms.Num() || Return;
}
TArray<FUnrealPropertyDefinitionInfo*> Parms;
FUnrealPropertyDefinitionInfo* Return = nullptr;
};
/**
* Get parameters and return type for a given function.
*
* @param Function The function to get the parameters for.
* @return An aggregate containing the parameters and return type of that function.
*/
FParmsAndReturnProperties GetFunctionParmsAndReturn(FUnrealFunctionDefinitionInfo& FunctionDef)
{
FParmsAndReturnProperties Result;
for (TSharedRef<FUnrealPropertyDefinitionInfo> PropertyDef : FunctionDef.GetProperties())
{
if (PropertyDef->HasSpecificPropertyFlags(CPF_Parm | CPF_ReturnParm, CPF_Parm))
{
Result.Parms.Add(&*PropertyDef);
}
else if (PropertyDef->HasAnyPropertyFlags(CPF_ReturnParm))
{
Result.Return = &*PropertyDef;
}
}
return Result;
}
/**
* Determines whether the glue version of the specified native function
* should be exported
*
* @param Function the function to check
* @return true if the glue version of the function should be exported.
*/
bool ShouldExportFunction(FUnrealFunctionDefinitionInfo& FunctionDef)
{
// export any script stubs for native functions declared in interface classes
bool bIsBlueprintNativeEvent = FunctionDef.HasAllFunctionFlags(FUNC_BlueprintEvent | FUNC_Native);
if (FunctionDef.GetOwnerClass()->HasAnyClassFlags(CLASS_Interface) && !bIsBlueprintNativeEvent)
{
return true;
}
// always export if the function is static
if (FunctionDef.HasAnyFunctionFlags(FUNC_Static))
{
return true;
}
// don't export the function if this is not the original declaration and there is
// at least one parent version of the function that is declared native
for (FUnrealFunctionDefinitionInfo* ParentFunctionDef = FunctionDef.GetSuperFunction(); ParentFunctionDef; ParentFunctionDef = ParentFunctionDef->GetSuperFunction())
{
if (ParentFunctionDef->HasAnyFunctionFlags(FUNC_Native))
{
return false;
}
}
return true;
}
FString CreateLiteralString(const FString& Str)
{
FString Result;
// Have a reasonable guess at reserving the right size
Result.Reserve(Str.Len() + 8);
Result += TEXT("TEXT(\"");
bool bPreviousCharacterWasHex = false;
const TCHAR* Ptr = *Str;
while (TCHAR Ch = *Ptr++)
{
switch (Ch)
{
case TEXT('\r'): continue;
case TEXT('\n'): Result += TEXT("\\n"); bPreviousCharacterWasHex = false; break;
case TEXT('\\'): Result += TEXT("\\\\"); bPreviousCharacterWasHex = false; break;
case TEXT('\"'): Result += TEXT("\\\""); bPreviousCharacterWasHex = false; break;
default:
if (Ch < 31 || Ch >= 128)
{
Result += FString::Printf(TEXT("\\x%04x"), Ch);
bPreviousCharacterWasHex = true;
}
else
{
// We close and open the literal (with TEXT) here in order to ensure that successive hex characters aren't appended to the hex sequence, causing a different number
if (bPreviousCharacterWasHex && FCharWide::IsHexDigit(Ch))
{
Result += "\")TEXT(\"";
}
bPreviousCharacterWasHex = false;
Result += Ch;
}
break;
}
}
Result += TEXT("\")");
return Result;
}
FString CreateUTF8LiteralString(const FString& Str)
{
FString Result;
// Have a reasonable guess at reserving the right size
Result.Reserve(Str.Len() + 2);
Result += TEXT("\"");
bool bPreviousCharacterWasHex = false;
FTCHARToUTF8 StrUTF8(*Str);
const char* Ptr = StrUTF8.Get();
while (char Ch = *Ptr++)
{
switch (Ch)
{
case '\r': continue;
case '\n': Result += TEXT("\\n"); bPreviousCharacterWasHex = false; break;
case '\\': Result += TEXT("\\\\"); bPreviousCharacterWasHex = false; break;
case '\"': Result += TEXT("\\\""); bPreviousCharacterWasHex = false; break;
default:
if (Ch < 31)
{
Result += FString::Printf(TEXT("\\x%02x"), (uint8)Ch);
bPreviousCharacterWasHex = true;
}
else
{
// We close and open the literal here in order to ensure that successive hex characters aren't appended to the hex sequence, causing a different number
if (bPreviousCharacterWasHex && FCharWide::IsHexDigit(Ch))
{
Result += "\"\"";
}
bPreviousCharacterWasHex = false;
Result += Ch;
}
break;
}
}
Result += TEXT("\"");
return Result;
}
// Returns the METADATA_PARAMS for this output
static FString OutputMetaDataCodeForObject(FOutputDevice& OutDeclaration, FOutputDevice& Out, FUnrealTypeDefinitionInfo& TypeDef, const TCHAR* MetaDataBlockName, const TCHAR* DeclSpaces, const TCHAR* Spaces)
{
TMap<FName, FString> MetaData = TypeDef.GenerateMetadataMap();
FString Result;
if (MetaData.Num())
{
typedef TKeyValuePair<FName, FString*> KVPType;
TArray<KVPType> KVPs;
KVPs.Reserve(MetaData.Num());
for (TPair<FName, FString>& KVP : MetaData)
{
KVPs.Add(KVPType(KVP.Key, &KVP.Value));
}
// We sort the metadata here so that we can get consistent output across multiple runs
// even when metadata is added in a different order
Algo::SortBy(KVPs, &KVPType::Key, FNameLexicalLess());
FString MetaDataBlockNameWithoutScope = MetaDataBlockName;
int32 ScopeIndex = MetaDataBlockNameWithoutScope.Find(TEXT("::"), ESearchCase::CaseSensitive);
if (ScopeIndex != INDEX_NONE)
{
MetaDataBlockNameWithoutScope.RightChopInline(ScopeIndex + 2, false);
}
OutDeclaration.Log (TEXT("#if WITH_METADATA\r\n"));
OutDeclaration.Logf(TEXT("%sstatic const UECodeGen_Private::FMetaDataPairParam %s[];\r\n"), DeclSpaces, *MetaDataBlockNameWithoutScope);
OutDeclaration.Log (TEXT("#endif\r\n"));
Out.Log (TEXT("#if WITH_METADATA\r\n"));
Out.Logf(TEXT("%sconst UECodeGen_Private::FMetaDataPairParam %s[] = {\r\n"), Spaces, MetaDataBlockName);
for (const KVPType& KVP : KVPs)
{
Out.Logf(TEXT("%s\t{ %s, %s },\r\n"), Spaces, *CreateUTF8LiteralString(KVP.Key.ToString()), *CreateUTF8LiteralString(*KVP.Value));
}
Out.Logf(TEXT("%s};\r\n"), Spaces);
Out.Log (TEXT("#endif\r\n"));
Result = FString::Printf(TEXT("METADATA_PARAMS(%s, UE_ARRAY_COUNT(%s))"), MetaDataBlockName, MetaDataBlockName);
}
else
{
Result = TEXT("METADATA_PARAMS(nullptr, 0)");
}
return Result;
}
void FNativeClassHeaderGenerator::ExportProperties(FOutputDevice& Out, FUnrealStructDefinitionInfo& StructDef, int32 TextIndent)
{
FMacroBlockEmitter WithEditorOnlyData(Out, TEXT("WITH_EDITORONLY_DATA"));
// Iterate over all properties in this struct.
for (TSharedRef<FUnrealPropertyDefinitionInfo> PropertyDef : StructDef.GetProperties())
{
WithEditorOnlyData(PropertyDef->IsEditorOnlyProperty());
// Export property specifiers
// Indent code and export CPP text.
FUHTStringBuilder JustPropertyDecl;
PropertyDef->ExportCppDeclaration( JustPropertyDecl, EExportedDeclaration::Member, PropertyDef->GetArrayDimensions());
ApplyAlternatePropertyExportText(*PropertyDef, JustPropertyDecl, EExportingState::TypeEraseDelegates);
// Finish up line.
Out.Logf(TEXT("%s%s;\r\n"), FCString::Tab(TextIndent + 1), *JustPropertyDecl);
}
}
static FString GNullPtr(TEXT("nullptr"));
const FString& FNativeClassHeaderGenerator::GetPackageSingletonName(FUnrealPackageDefinitionInfo& PackageDef, TSet<FString>* UniqueCrossModuleReferences)
{
PackageDef.AddCrossModuleReference(UniqueCrossModuleReferences);
return PackageDef.GetSingletonName();
}
const FString& FNativeClassHeaderGenerator::GetPackageSingletonNameFuncAddr(FUnrealPackageDefinitionInfo& PackageDef, TSet<FString>* UniqueCrossModuleReferences)
{
PackageDef.AddCrossModuleReference(UniqueCrossModuleReferences);
return PackageDef.GetSingletonNameChopped();
}
const FString& FNativeClassHeaderGenerator::GetSingletonNameFuncAddr(FUnrealFieldDefinitionInfo* FieldDef, TSet<FString>* UniqueCrossModuleReferences, bool bRequiresValidObject)
{
if (!FieldDef)
{
return GNullPtr;
}
else
{
FieldDef->AddCrossModuleReference(UniqueCrossModuleReferences, bRequiresValidObject);
return FieldDef->GetSingletonNameChopped(bRequiresValidObject);
}
}
void FNativeClassHeaderGenerator::GetPropertyTag(FUHTStringBuilder& Out, FUnrealPropertyDefinitionInfo& PropDef)
{
const FPropertyBase& PropertyBase = PropDef.GetPropertyBase();
// Do the value types
switch (PropertyBase.GetUHTPropertyType())
{
#if UHT_ENABLE_VALUE_PROPERTY_TAG
case EUHTPropertyType::Enum:
PropertyBase.EnumDef->GetHashTag(PropDef, Out);
break;
case EUHTPropertyType::Struct:
PropertyBase.ScriptStructDef->GetHashTag(PropDef, Out);
break;
#endif
#if UHT_ENABLE_PTR_PROPERTY_TAG
case EUHTPropertyType::ObjectReference:
case EUHTPropertyType::WeakObjectReference:
case EUHTPropertyType::LazyObjectReference:
case EUHTPropertyType::SoftObjectReference:
case EUHTPropertyType::ObjectPtrReference:
case EUHTPropertyType::InterfaceReference:
case EUHTPropertyType::InterfaceReference:
PropertyBase.ClassDef->GetHashTag(Out);
break;
#endif
#if UHT_ENABLE_DELEGATE_PROPERTY_TAG
case EUHTPropertyType::Delegate:
case EUHTPropertyType::MulticastDelegate:
PropertyBase.FunctionDef->GetHashTag(PropDef, Out);
break;
#endif
default:
break;
}
// Add the key value
if (PropDef.HasKeyPropDef())
{
GetPropertyTag(Out, PropDef.GetKeyPropDef());
}
if (PropDef.HasValuePropDef())
{
GetPropertyTag(Out, PropDef.GetValuePropDef());
}
}
/** Helper function that generates property getter wrapper function name */
inline FString GetPropertyGetterWrapperName(FUnrealPropertyDefinitionInfo& Prop)
{
return FString::Printf(TEXT("Get%s_WrapperImpl"), *Prop.GetName());
}
/** Helper function that generates property setter wrapper function name */
inline FString GetPropertySetterWrapperName(FUnrealPropertyDefinitionInfo& Prop)
{
return FString::Printf(TEXT("Set%s_WrapperImpl"), *Prop.GetName());
}
/** Helper function that generates property getter wrapper function name for passing as a function pointer argument */
inline FString GetPropertyGetterWrapperPtr(FUnrealPropertyDefinitionInfo& Prop, const TCHAR* SourceStruct)
{
return !Prop.GetPropertyBase().bGetterFunctionFound ? TEXT("nullptr") : FString::Printf(TEXT("&%s::%s"), SourceStruct, *GetPropertyGetterWrapperName(Prop));
}
/** Helper function that generates property setter wrapper function name for passing as a function pointer argument */
inline FString GetPropertySetterWrapperPtr(FUnrealPropertyDefinitionInfo& Prop, const TCHAR* SourceStruct)
{
return !Prop.GetPropertyBase().bSetterFunctionFound ? TEXT("nullptr") : FString::Printf(TEXT("&%s::%s"), SourceStruct, *GetPropertySetterWrapperName(Prop));
}
void FNativeClassHeaderGenerator::OutputProperty(FOutputDevice& DeclOut, FOutputDevice& Out, FReferenceGatherers& OutReferenceGatherers, const TCHAR* Scope, TArray<FPropertyNamePointerPair>& PropertyNamesAndPointers, FUnrealPropertyDefinitionInfo& PropertyDef, const TCHAR* OffsetStr, FString&& Name, const TCHAR* DeclSpaces, const TCHAR* Spaces, const TCHAR* SourceStruct) const
{
const FPropertyBase& PropertyBase = PropertyDef.GetPropertyBase();
FString PropName = CreateUTF8LiteralString(PropertyDef.GetName());
FString PropNameDep = PropertyDef.HasAllPropertyFlags(CPF_Deprecated) ? PropertyDef.GetName() + TEXT("_DEPRECATED") : PropertyDef.GetName();
const TCHAR* FPropertyObjectFlags = TEXT("RF_Public|RF_Transient|RF_MarkAsNative");
EPropertyFlags PropFlags = PropertyDef.GetPropertyFlags() & ~CPF_ComputedFlags;
FUHTStringBuilder PropTag;
GetPropertyTag(PropTag, PropertyDef);
FString PropNotifyFunc = PropertyDef.GetRepNotifyFunc() != NAME_None ? CreateUTF8LiteralString(*PropertyDef.GetRepNotifyFunc().ToString()) : TEXT("nullptr");
FString ArrayDim = PropertyDef.IsStaticArray() ? FString::Printf(TEXT("CPP_ARRAY_DIM(%s, %s)"), *PropNameDep, SourceStruct) : TEXT("1");
FString NameWithoutScope = *Name;
{
//FString Scope;
int32 ScopeIndex = NameWithoutScope.Find(TEXT("::"), ESearchCase::CaseSensitive);
if (ScopeIndex != INDEX_NONE)
{
//Scope = NameWithoutScope.Left(ScopeIndex) + TEXT("_");
NameWithoutScope.RightChopInline(ScopeIndex + 2, false);
}
}
FString SetterFunc = GetPropertySetterWrapperPtr(PropertyDef, SourceStruct);
FString GetterFunc = GetPropertyGetterWrapperPtr(PropertyDef, SourceStruct);
auto OutputByteProperty = [&]()
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FBytePropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FBytePropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Byte, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*GetSingletonNameFuncAddr(PropertyBase.EnumDef, OutReferenceGatherers.UniqueCrossModuleReferences),
*MetaDataParams,
*PropTag
);
};
switch (PropertyBase.GetUHTPropertyType())
{
case EUHTPropertyType::Byte:
{
OutputByteProperty();
break;
}
case EUHTPropertyType::Int8:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FInt8PropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FInt8PropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Int8, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::Int16:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FInt16PropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FInt16PropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Int16, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::Int:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
const TCHAR* PropTypeName = PropertyDef.IsUnsized() ? TEXT("FUnsizedIntPropertyParams") : TEXT("FIntPropertyParams");
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::%s %s;\r\n"), DeclSpaces, PropTypeName, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::%s %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Int, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
PropTypeName,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::Int64:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FInt64PropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FInt64PropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Int64, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::UInt16:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FFInt16PropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FFInt16PropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::UInt16, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::UInt32:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
const TCHAR* PropTypeName = PropertyDef.IsUnsized() ? TEXT("FUnsizedFIntPropertyParams") : TEXT("FUInt32PropertyParams");
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::%s %s;\r\n"), DeclSpaces, PropTypeName, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::%s %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::UInt32, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
PropTypeName,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::UInt64:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FFInt64PropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FFInt64PropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::UInt64, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::Float:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FFloatPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FFloatPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Float, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::Double:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FDoublePropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FDoublePropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Double, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::LargeWorldCoordinatesReal:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FLargeWorldCoordinatesRealPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FLargeWorldCoordinatesRealPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::LargeWorldCoordinatesReal, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::Bool:
case EUHTPropertyType::Bool8:
case EUHTPropertyType::Bool16:
case EUHTPropertyType::Bool32:
case EUHTPropertyType::Bool64:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
bool bIsNativeBool = PropertyBase.Type == CPT_Bool || EnumHasAnyFlags(PropertyBase.PropertyFlags, CPF_ReturnParm);
FString OuterSize;
FString Setter;
if (UHTCast<FUnrealObjectDefinitionInfo>(PropertyDef.GetOuter()) == nullptr)
{
OuterSize = TEXT("0");
Setter = TEXT("nullptr");
}
else
{
OuterSize = FString::Printf(TEXT("sizeof(%s)"), SourceStruct);
DeclOut.Logf(TEXT("%sstatic void %s_SetBit(void* Obj);\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(TEXT("%svoid %s_SetBit(void* Obj)\r\n"), Spaces, *Name);
Out.Logf(TEXT("%s{\r\n"), Spaces);
Out.Logf(TEXT("%s\t((%s*)Obj)->%s%s = 1;\r\n"), Spaces, SourceStruct, *PropertyDef.GetName(), PropertyDef.HasAllPropertyFlags(CPF_Deprecated) ? TEXT("_DEPRECATED") : TEXT(""));
Out.Logf(TEXT("%s}\r\n"), Spaces);
Setter = FString::Printf(TEXT("&%s_SetBit"), *Name);
}
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FBoolPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FBoolPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Bool %s, %s, %s, %s, %s, sizeof(%s), %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
bIsNativeBool ? TEXT("| UECodeGen_Private::EPropertyGenFlags::NativeBool") : TEXT(""),
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
*PropertyDef.GetCPPType(nullptr, 0),
*OuterSize,
*Setter,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::ObjectReference:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
if (PropertyBase.ClassDef->IsChildOf(*GUClassDef))
{
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FClassPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FClassPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Class, %s, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*GetSingletonNameFuncAddr(PropertyBase.ClassDef, OutReferenceGatherers.UniqueCrossModuleReferences, false),
*GetSingletonNameFuncAddr(PropertyBase.MetaClassDef, OutReferenceGatherers.UniqueCrossModuleReferences, false),
*MetaDataParams,
*PropTag
);
}
else
{
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FObjectPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FObjectPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Object, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*GetSingletonNameFuncAddr(PropertyBase.ClassDef, OutReferenceGatherers.UniqueCrossModuleReferences, false),
*MetaDataParams,
*PropTag
);
}
break;
}
case EUHTPropertyType::ObjectPtrReference:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
if (PropertyBase.ClassDef->IsChildOf(*GUClassDef))
{
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FClassPtrPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FClassPtrPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Class | UECodeGen_Private::EPropertyGenFlags::ObjectPtr, %s, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*GetSingletonNameFuncAddr(PropertyBase.ClassDef, OutReferenceGatherers.UniqueCrossModuleReferences, false),
*GetSingletonNameFuncAddr(PropertyBase.MetaClassDef, OutReferenceGatherers.UniqueCrossModuleReferences, false),
*MetaDataParams,
*PropTag
);
}
else
{
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FObjectPtrPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FObjectPtrPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Object | UECodeGen_Private::EPropertyGenFlags::ObjectPtr, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*GetSingletonNameFuncAddr(PropertyBase.ClassDef, OutReferenceGatherers.UniqueCrossModuleReferences, false),
*MetaDataParams,
*PropTag
);
}
break;
}
case EUHTPropertyType::SoftObjectReference:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
if (PropertyBase.ClassDef->IsChildOf(*GUClassDef))
{
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FSoftClassPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FSoftClassPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::SoftClass, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*GetSingletonNameFuncAddr(PropertyBase.MetaClassDef, OutReferenceGatherers.UniqueCrossModuleReferences, false),
*MetaDataParams,
*PropTag
);
}
else
{
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FSoftObjectPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FSoftObjectPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::SoftObject, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*GetSingletonNameFuncAddr(PropertyBase.ClassDef, OutReferenceGatherers.UniqueCrossModuleReferences, false),
*MetaDataParams,
*PropTag
);
}
break;
}
case EUHTPropertyType::WeakObjectReference:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FWeakObjectPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FWeakObjectPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::WeakObject, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*GetSingletonNameFuncAddr(PropertyBase.ClassDef, OutReferenceGatherers.UniqueCrossModuleReferences, false),
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::LazyObjectReference:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FLazyObjectPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FLazyObjectPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::LazyObject, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*GetSingletonNameFuncAddr(PropertyBase.ClassDef, OutReferenceGatherers.UniqueCrossModuleReferences, false),
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::Interface:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FInterfacePropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FInterfacePropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Interface, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*GetSingletonNameFuncAddr(PropertyBase.ClassDef, OutReferenceGatherers.UniqueCrossModuleReferences, false),
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::Name:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FNamePropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FNamePropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Name, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::String:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FStrPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FStrPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Str, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::DynamicArray:
{
FUnrealPropertyDefinitionInfo& ValueDef = PropertyDef.GetValuePropDef();
FString ValueVariableName = FString::Printf(TEXT("%sNewProp_%s_Inner"), Scope, *ValueDef.GetName());
OutputProperty(DeclOut, Out, OutReferenceGatherers, Scope, PropertyNamesAndPointers, ValueDef, TEXT("0"), MoveTemp(ValueVariableName), DeclSpaces, Spaces, nullptr);
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FArrayPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FArrayPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Array, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
PropertyDef.GetAllocatorType() == EAllocatorType::MemoryImage ? TEXT("EArrayPropertyFlags::UsesMemoryImageAllocator") : TEXT("EArrayPropertyFlags::None"),
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::Map:
{
FUnrealPropertyDefinitionInfo& KeyDef = PropertyDef.GetKeyPropDef();
FUnrealPropertyDefinitionInfo& ValueDef = PropertyDef.GetValuePropDef();
FString KeyVariableName = FString::Printf(TEXT("%sNewProp_%s_KeyProp"), Scope, *KeyDef.GetName());
FString ValueVariableName = FString::Printf(TEXT("%sNewProp_%s_ValueProp"), Scope, *ValueDef.GetName());
OutputProperty(DeclOut, Out, OutReferenceGatherers, Scope, PropertyNamesAndPointers, ValueDef, TEXT("1"), MoveTemp(ValueVariableName), DeclSpaces, Spaces, nullptr);
OutputProperty(DeclOut, Out, OutReferenceGatherers, Scope, PropertyNamesAndPointers, KeyDef, TEXT("0"), MoveTemp(KeyVariableName), DeclSpaces, Spaces, nullptr);
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FMapPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FMapPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Map, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
PropertyDef.GetAllocatorType() == EAllocatorType::MemoryImage ? TEXT("EMapPropertyFlags::UsesMemoryImageAllocator") : TEXT("EMapPropertyFlags::None"),
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::Set:
{
FUnrealPropertyDefinitionInfo& ValueDef = PropertyDef.GetValuePropDef();
FString ValueVariableName = FString::Printf(TEXT("%sNewProp_%s_ElementProp"), Scope, *ValueDef.GetName());
OutputProperty(DeclOut, Out, OutReferenceGatherers, Scope, PropertyNamesAndPointers, ValueDef, TEXT("0"), MoveTemp(ValueVariableName), DeclSpaces, Spaces, nullptr);
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FSetPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
if (ValueDef.IsStructOrStructStaticArray())
{
const FString& StructName = ValueDef.GetPropertyBase().ScriptStructDef->GetNameCPP();
Out.Logf(TEXT("%sstatic_assert(TModels<CGetTypeHashable, %s>::Value, \"The structure '%s' is used in a TSet but does not have a GetValueTypeHash defined\");\r\n"), Spaces, *StructName, *StructName);
}
Out.Logf(
TEXT("%sconst UECodeGen_Private::FSetPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Set, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::Struct:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FStructPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FStructPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Struct, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*GetSingletonNameFuncAddr(PropertyBase.ScriptStructDef, OutReferenceGatherers.UniqueCrossModuleReferences),
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::Delegate:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FDelegatePropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FDelegatePropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Delegate, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*GetSingletonNameFuncAddr(PropertyBase.FunctionDef, OutReferenceGatherers.UniqueCrossModuleReferences),
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::MulticastDelegate:
{
bool bIsSparse = PropertyBase.FunctionDef->GetFunctionType() == EFunctionType::SparseDelegate;
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FMulticastDelegatePropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FMulticastDelegatePropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::%sMulticastDelegate, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
!bIsSparse ? TEXT("Inline") : TEXT("Sparse"),
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*GetSingletonNameFuncAddr(PropertyBase.FunctionDef, OutReferenceGatherers.UniqueCrossModuleReferences),
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::Text:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FTextPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FTextPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Text, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*MetaDataParams,
*PropTag
);
break;
}
case EUHTPropertyType::Enum:
{
if (PropertyBase.EnumDef->GetCppForm() != UEnum::ECppForm::EnumClass)
{
OutputByteProperty();
}
else
{
// Output the underlying property
FString PropVarName = FString::Printf(TEXT("%s_Underlying"), *Name);
OutputProperty(DeclOut, Out, OutReferenceGatherers, Scope, PropertyNamesAndPointers, PropertyDef.GetValuePropDef(), TEXT("0"), *PropVarName, DeclSpaces, Spaces, nullptr);
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FEnumPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FEnumPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::Enum, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*GetSingletonNameFuncAddr(PropertyBase.EnumDef, OutReferenceGatherers.UniqueCrossModuleReferences),
*MetaDataParams,
*PropTag
);
}
break;
}
case EUHTPropertyType::FieldPath:
{
FString MetaDataParams = OutputMetaDataCodeForObject(DeclOut, Out, PropertyDef, *FString::Printf(TEXT("%s_MetaData"), *Name), DeclSpaces, Spaces);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FFieldPathPropertyParams %s;\r\n"), DeclSpaces, *NameWithoutScope);
Out.Logf(
TEXT("%sconst UECodeGen_Private::FFieldPathPropertyParams %s = { %s, %s, (EPropertyFlags)0x%016llx, UECodeGen_Private::EPropertyGenFlags::FieldPath, %s, %s, %s, %s, %s, %s, %s };%s\r\n"),
Spaces,
*Name,
*PropName,
*PropNotifyFunc,
PropFlags,
FPropertyObjectFlags,
*ArrayDim,
*SetterFunc,
*GetterFunc,
OffsetStr,
*FString::Printf(TEXT("&F%s::StaticClass"), *PropertyBase.FieldClassName.ToString()),
*MetaDataParams,
*PropTag
);
break;
}
default:
check(false);
}
PropertyNamesAndPointers.Emplace(MoveTemp(Name), PropertyDef);
}
bool IsEditorOnlyDataProperty(FUnrealPropertyDefinitionInfo& PropDef)
{
for (FUnrealPropertyDefinitionInfo* TestPropDef = &PropDef; TestPropDef; TestPropDef = UHTCast<FUnrealPropertyDefinitionInfo>(TestPropDef->GetOuter()))
{
if (TestPropDef->IsEditorOnlyProperty())
{
return true;
}
}
return false;
}
FString GetEventStructParamsName(FUnrealObjectDefinitionInfo& OuterDef, const TCHAR* FunctionName)
{
FString OuterName;
if (FUnrealClassDefinitionInfo* ClassDef = UHTCast<FUnrealClassDefinitionInfo>(OuterDef))
{
OuterName = ClassDef->GetName();
}
else if (FUnrealPackageDefinitionInfo* PackageDef = UHTCast<FUnrealPackageDefinitionInfo>(OuterDef))
{
OuterName = PackageDef->GetPackage()->GetName();
OuterName.ReplaceInline(TEXT("/"), TEXT("_"), ESearchCase::CaseSensitive);
}
else
{
OuterDef.Throwf(TEXT("Unrecognized outer type"));
}
FString Result = FString::Printf(TEXT("%s_event%s_Parms"), *OuterName, FunctionName);
if (Result.Len() && FChar::IsDigit(Result[0]))
{
Result.InsertAt(0, TCHAR('_'));
}
return Result;
}
TTuple<FString, FString> FNativeClassHeaderGenerator::OutputProperties(FOutputDevice& DeclOut, FOutputDevice& Out, FReferenceGatherers& OutReferenceGatherers, const TCHAR* Scope, FUnrealStructDefinitionInfo& StructDef, const TCHAR* DeclSpaces, const TCHAR* Spaces) const
{
if (StructDef.GetProperties().Num() == 0)
{
return TTuple<FString, FString>(TEXT("nullptr"), TEXT("0"));
}
TArray<FPropertyNamePointerPair> PropertyNamesAndPointers;
bool bHasAllEditorOnlyDataProperties = true;
{
FString SourceStruct;
if (FUnrealFunctionDefinitionInfo* FunctionDef = UHTCast<FUnrealFunctionDefinitionInfo>(StructDef))
{
while (FunctionDef->GetSuperFunction())
{
FunctionDef = FunctionDef->GetSuperFunction();
}
FString FunctionName = FunctionDef->GetName();
if (FunctionDef->HasAnyFunctionFlags(FUNC_Delegate))
{
FunctionName.LeftChopInline(HEADER_GENERATED_DELEGATE_SIGNATURE_SUFFIX_LENGTH, false);
}
SourceStruct = GetEventStructParamsName(*FunctionDef->GetOuter(), *FunctionName);
}
else
{
SourceStruct = StructDef.GetAlternateNameCPP();
}
FMacroBlockEmitter WithEditorOnlyMacroEmitter(Out, TEXT("WITH_EDITORONLY_DATA"));
FMacroBlockEmitter WithEditorOnlyMacroEmitterDecl(DeclOut, TEXT("WITH_EDITORONLY_DATA"));
for (TSharedRef<FUnrealPropertyDefinitionInfo> PropertyDef : StructDef.GetProperties())
{
bool bRequiresHasEditorOnlyMacro = IsEditorOnlyDataProperty(*PropertyDef);
if (!bRequiresHasEditorOnlyMacro)
{
bHasAllEditorOnlyDataProperties = false;
}
WithEditorOnlyMacroEmitter(bRequiresHasEditorOnlyMacro);
WithEditorOnlyMacroEmitterDecl(bRequiresHasEditorOnlyMacro);
FString PropName = PropertyDef->GetName();
FString PropVariableName = FString::Printf(TEXT("%sNewProp_%s"), Scope, *PropName);
if (PropertyDef->HasAllPropertyFlags(CPF_Deprecated))
{
PropName += TEXT("_DEPRECATED");
}
FString PropMacroOuterClass = FString::Printf(TEXT("STRUCT_OFFSET(%s, %s)"), *SourceStruct, *PropName);
OutputProperty(DeclOut, Out, OutReferenceGatherers, Scope, PropertyNamesAndPointers, *PropertyDef, *PropMacroOuterClass, MoveTemp(PropVariableName), DeclSpaces, Spaces, *SourceStruct);
}
WithEditorOnlyMacroEmitter(bHasAllEditorOnlyDataProperties);
WithEditorOnlyMacroEmitterDecl(bHasAllEditorOnlyDataProperties);
DeclOut.Logf(TEXT("%sstatic const UECodeGen_Private::FPropertyParamsBase* const PropPointers[];\r\n"), DeclSpaces);
Out.Logf(TEXT("%sconst UECodeGen_Private::FPropertyParamsBase* const %sPropPointers[] = {\r\n"), Spaces, Scope);
for (const FPropertyNamePointerPair& PropNameAndPtr : PropertyNamesAndPointers)
{
bool bRequiresHasEditorOnlyMacro = IsEditorOnlyDataProperty(*PropNameAndPtr.PropDef);
WithEditorOnlyMacroEmitter(bRequiresHasEditorOnlyMacro);
WithEditorOnlyMacroEmitterDecl(bRequiresHasEditorOnlyMacro);
Out.Logf(TEXT("%s\t(const UECodeGen_Private::FPropertyParamsBase*)&%s,\r\n"), Spaces, *PropNameAndPtr.Name);
}
WithEditorOnlyMacroEmitter(bHasAllEditorOnlyDataProperties);
WithEditorOnlyMacroEmitterDecl(bHasAllEditorOnlyDataProperties);
Out.Logf(TEXT("%s};\r\n"), Spaces);
}
if (bHasAllEditorOnlyDataProperties)
{
return TTuple<FString, FString>(
FString::Printf(TEXT("IF_WITH_EDITORONLY_DATA(%sPropPointers, nullptr)"), Scope),
FString::Printf(TEXT("IF_WITH_EDITORONLY_DATA(UE_ARRAY_COUNT(%sPropPointers), 0)"), Scope)
);
}
else
{
return TTuple<FString, FString>(
FString::Printf(TEXT("%sPropPointers"), Scope),
FString::Printf(TEXT("UE_ARRAY_COUNT(%sPropPointers)"), Scope)
);
}
}
static bool IsAlwaysAccessible(FUnrealScriptStructDefinitionInfo& ScriptDef)
{
FName ToTest = ScriptDef.GetFName();
if (ToTest == NAME_Matrix || ToTest == NAME_Matrix44f || ToTest == NAME_Matrix44d)
{
return false; // special case, the C++ FMatrix does not have the same members.
}
bool Result = ScriptDef.HasDefaults(); // if we have cpp struct ops in it for UHT, then we can assume it is always accessible
// LWC_TODO:
//UScriptStruct::ICppStructOps* StructOps = UScriptStruct::FindDeferredCppStructOps(ToTest);
//check(StructOps || !ToTest_falls_within_UnrealNames.inl_SpecialTypes);
//return StructOps != nullptr;
if( ToTest == NAME_Plane || ToTest == NAME_Plane4f || ToTest == NAME_Plane4d
|| ToTest == NAME_Vector || ToTest == NAME_Vector3f || ToTest == NAME_Vector3d
|| ToTest == NAME_Vector4 || ToTest == NAME_Vector4f || ToTest == NAME_Vector4d
|| ToTest == NAME_Box || ToTest == NAME_Box3f || ToTest == NAME_Box3d
|| ToTest == NAME_Quat || ToTest == NAME_Quat4f || ToTest == NAME_Quat4d
|| ToTest == NAME_Rotator || ToTest == NAME_Rotator3f || ToTest == NAME_Rotator3d
|| ToTest == NAME_Color
)
{
check(Result);
}
return Result;
}
static void FindNoExportStructsRecursive(TArray<FUnrealScriptStructDefinitionInfo*>& StructDefs, FUnrealStructDefinitionInfo* StartDef)
{
for (; StartDef; StartDef = StartDef->GetSuperStructInfo().Struct)
{
if (FUnrealScriptStructDefinitionInfo* StartScriptDef = UHTCast<FUnrealScriptStructDefinitionInfo>(StartDef))
{
if (StartScriptDef->HasAnyStructFlags(STRUCT_Native))
{
break;
}
if (!IsAlwaysAccessible(*StartScriptDef)) // these are a special cases that already exists and if wrong if exported naively
{
// this will topologically sort them in reverse order
StructDefs.Remove(&StartDef->AsScriptStructChecked());
StructDefs.Add(&StartDef->AsScriptStructChecked());
}
}
for (TSharedRef<FUnrealPropertyDefinitionInfo> PropertyDef : StartDef->GetProperties())
{
const FPropertyBase& PropertyBase = PropertyDef->GetPropertyBase();
if (UHTCast<FUnrealScriptStructDefinitionInfo>(PropertyBase.TypeDef) != nullptr)
{
FindNoExportStructsRecursive(StructDefs, PropertyBase.ScriptStructDef);
}
if (PropertyBase.MapKeyProp != nullptr && UHTCast<FUnrealScriptStructDefinitionInfo>(PropertyBase.MapKeyProp->TypeDef) != nullptr)
{
FindNoExportStructsRecursive(StructDefs, PropertyBase.MapKeyProp->ScriptStructDef);
}
}
}
}
static TArray<FUnrealScriptStructDefinitionInfo*> FindNoExportStructs(FUnrealStructDefinitionInfo* StartDef)
{
TArray<FUnrealScriptStructDefinitionInfo*> Result;
FindNoExportStructsRecursive(Result, StartDef);
// These come out in reverse order of topology so reverse them
Algo::Reverse(Result);
return Result;
}
bool IsDelegateFunction(FUnrealFieldDefinitionInfo& FieldDef)
{
FUnrealFunctionDefinitionInfo* FunctionDef = UHTCast<FUnrealFunctionDefinitionInfo>(FieldDef);
return FunctionDef != nullptr && FunctionDef->IsDelegateFunction();
}
void FNativeClassHeaderGenerator::ExportGeneratedPackageInitCode(FOutputDevice& Out, const TCHAR* InDeclarations, const TArray<FGeneratedCPP*>& ExportedSorted, uint32 Hash)
{
UPackage* Package = PackageDef.GetPackage();
const FString& SingletonName = GetPackageSingletonNameFuncAddr(PackageDef, nullptr);
FString PackageName = Package->GetName();
PackageName.ReplaceInline(TEXT("/"), TEXT("_"), ESearchCase::CaseSensitive);
FString BodyHashFn = FString::Printf(TEXT("Z_UPackage_%s_BodyHash"), *PackageName);
FString DeclarationsHashFn = FString::Printf(TEXT("Z_UPackage_%s_DeclarationsHash"), *PackageName);
uint32 DeclarationsHash = GenerateTextHash(InDeclarations);
TArray<FUnrealFieldDefinitionInfo*> Singletons;
for (TSharedRef<FUnrealSourceFile>& SourceFile : PackageDef.GetAllSourceFiles())
{
Singletons.Append(SourceFile->GetSingletons());
}
Algo::Sort(Singletons, [](FUnrealFieldDefinitionInfo* A, FUnrealFieldDefinitionInfo* B)
{
bool bADel = IsDelegateFunction(*A);
bool bBDel = IsDelegateFunction(*B);
if (bADel != bBDel)
{
return !bADel;
}
const FString& AName = A->GetSingletonName(true);
const FString& BName = B->GetSingletonName(true);
return AName < BName;
});
if (bIncludeDebugOutput)
{
Out.Log(TEXT("#if 0\r\n"));
for (FGeneratedCPP* gen : ExportedSorted)
{
Out.Logf(TEXT("\t%s\r\n"), *gen->SourceFile.GetFilename());
}
Out.Log(InDeclarations);
Out.Log(TEXT("#endif\r\n"));
}
for (FUnrealFieldDefinitionInfo* FieldDef : Singletons)
{
Out.Log(FieldDef->GetExternDecl(true));
}
FOutputDeviceNull OutputDeviceNull;
FString MetaDataParams = OutputMetaDataCodeForObject(OutputDeviceNull, Out, PackageDef, TEXT("Package_MetaDataParams"), TEXT(""), TEXT("\t\t\t"));
Out.Logf(TEXT("\tstatic FPackageRegistrationInfo Z_Registration_Info_UPackage_%s;\r\n"), *PackageName);
Out.Logf(TEXT("\tFORCENOINLINE UPackage* %s()\r\n"), *SingletonName);
Out.Logf(TEXT("\t{\r\n"));
Out.Logf(TEXT("\t\tif (!Z_Registration_Info_UPackage_%s.OuterSingleton)\r\n"), *PackageName);
Out.Logf(TEXT("\t\t{\r\n"));
const TCHAR* SingletonArray;
const TCHAR* SingletonCount;
if (!Singletons.IsEmpty())
{
Out.Logf(TEXT("\t\t\tstatic UObject* (*const SingletonFuncArray[])() = {\r\n"));
for (FUnrealFieldDefinitionInfo* FieldDef : Singletons)
{
const FString& Name = FieldDef->GetSingletonNameChopped(true);
Out.Logf(TEXT("\t\t\t\t(UObject* (*)())%s,\r\n"), *Name);
}
Out.Logf(TEXT("\t\t\t};\r\n"));
SingletonArray = TEXT("SingletonFuncArray");
SingletonCount = TEXT("UE_ARRAY_COUNT(SingletonFuncArray)");
}
else
{
SingletonArray = TEXT("nullptr");
SingletonCount = TEXT("0");
}
Out.Logf(TEXT("\t\t\tstatic const UECodeGen_Private::FPackageParams PackageParams = {\r\n"));
Out.Logf(TEXT("\t\t\t\t%s,\r\n"), *CreateUTF8LiteralString(Package->GetName()));
Out.Logf(TEXT("\t\t\t\t%s,\r\n"), SingletonArray);
Out.Logf(TEXT("\t\t\t\t%s,\r\n"), SingletonCount);
Out.Logf(TEXT("\t\t\t\tPKG_CompiledIn | 0x%08X,\r\n"), Package->GetPackageFlags() & (PKG_ClientOptional | PKG_ServerSideOnly | PKG_EditorOnly | PKG_Developer | PKG_UncookedOnly));
Out.Logf(TEXT("\t\t\t\t0x%08X,\r\n"), Hash);
Out.Logf(TEXT("\t\t\t\t0x%08X,\r\n"), DeclarationsHash);
Out.Logf(TEXT("\t\t\t\t%s\r\n"), *MetaDataParams);
Out.Logf(TEXT("\t\t\t};\r\n"));
Out.Logf(TEXT("\t\t\tUECodeGen_Private::ConstructUPackage(Z_Registration_Info_UPackage_%s.OuterSingleton, PackageParams);\r\n"), *PackageName);
Out.Logf(TEXT("\t\t}\r\n"));
Out.Logf(TEXT("\t\treturn Z_Registration_Info_UPackage_%s.OuterSingleton;\r\n"), *PackageName);
Out.Logf(TEXT("\t}\r\n"));
// Do not change the Z_CompiledInDeferPackage_UPackage_ without changing LC_SymbolPatterns
Out.Logf(TEXT("\tstatic FRegisterCompiledInInfo Z_CompiledInDeferPackage_UPackage_%s(%s, TEXT(\"%s\"), Z_Registration_Info_UPackage_%s, CONSTRUCT_RELOAD_VERSION_INFO(FPackageReloadVersionInfo, 0x%08X, 0x%08X));\r\n"),
*PackageName,
*SingletonName,
*Package->GetName(),
*PackageName,
Hash,
DeclarationsHash
);
}
void FNativeClassHeaderGenerator::ExportNativeGeneratedInitCode(FOutputDevice& Out, FOutputDevice& OutDeclarations, FReferenceGatherers& OutReferenceGatherers, const FUnrealSourceFile& SourceFile, FUnrealClassDefinitionInfo& ClassDef, FUHTStringBuilder& OutFriendText) const
{
check(!OutFriendText.Len());
const bool bIsNoExport = ClassDef.IsNoExport();
const FString ClassNameCPP = ClassDef.GetAlternateNameCPP();
const FString& ApiString = GetAPIString();
TSet<FName> AlreadyIncludedNames;
TArray<FUnrealFunctionDefinitionInfo*> FunctionsToExport;
bool bAllEditorOnlyFunctions = true;
for (TSharedRef<FUnrealFunctionDefinitionInfo> LocalFuncDef : ClassDef.GetFunctions())
{
FName TrueName = LocalFuncDef->GetFName();
bool bAlreadyIncluded = false;
AlreadyIncludedNames.Add(TrueName, &bAlreadyIncluded);
if (bAlreadyIncluded)
{
if (!LocalFuncDef->IsDelegateFunction())
{
LocalFuncDef->Throwf(TEXT("The same function linked twice. Function: %s Class: %s"), *LocalFuncDef->GetName(), *ClassDef.GetName());
}
continue;
}
if (!LocalFuncDef->IsDelegateFunction())
{
bAllEditorOnlyFunctions &= LocalFuncDef->HasAnyFunctionFlags(FUNC_EditorOnly);
}
FunctionsToExport.Add(&*LocalFuncDef);
}
// Sort the list of functions
Algo::SortBy(FunctionsToExport, [](FUnrealFunctionDefinitionInfo* Obj) { return Obj->GetName(); });
FUHTStringBuilder GeneratedClassRegisterFunctionText;
// The class itself.
{
// simple ::StaticClass wrapper to avoid header, link and DLL hell
{
ClassDef.AddCrossModuleReference(OutReferenceGatherers.UniqueCrossModuleReferences, false);
const FString& SingletonNameNoRegister = ClassDef.GetSingletonName(false);
OutDeclarations.Log(ClassDef.GetExternDecl(false));
GeneratedClassRegisterFunctionText.Logf(TEXT("\tUClass* %s\r\n"), *SingletonNameNoRegister);
GeneratedClassRegisterFunctionText.Logf(TEXT("\t{\r\n"));
GeneratedClassRegisterFunctionText.Logf(TEXT("\t\treturn %s::StaticClass();\r\n"), *ClassNameCPP);
GeneratedClassRegisterFunctionText.Logf(TEXT("\t}\r\n"));
}
// NOTE: We are adding the cross module reference here to avoid output differences.
ClassDef.AddCrossModuleReference(OutReferenceGatherers.UniqueCrossModuleReferences, true);
const FString& SingletonName = ClassDef.GetSingletonName(true);
FString StaticsStructName = ClassDef.GetSingletonNameChopped(true) + TEXT("_Statics");
OutFriendText.Logf(TEXT("\tfriend struct %s;\r\n"), *StaticsStructName);
OutDeclarations.Log(ClassDef.GetExternDecl(true));
GeneratedClassRegisterFunctionText.Logf(TEXT("\tstruct %s\r\n"), *StaticsStructName);
GeneratedClassRegisterFunctionText.Logf(TEXT("\t{\r\n"));
FUHTStringBuilder StaticDefinitions;
FUHTStringBuilder Singletons;
FUnrealClassDefinitionInfo* SuperClassDef = ClassDef.GetSuperClass();
if (SuperClassDef && SuperClassDef != &ClassDef)
{
SuperClassDef->AddCrossModuleReference(OutReferenceGatherers.UniqueCrossModuleReferences, true);
OutDeclarations.Log(SuperClassDef->GetExternDecl(true));
Singletons.Logf(TEXT("\t\t(UObject* (*)())%s,\r\n"), *SuperClassDef->GetSingletonNameChopped(true));
}
check(ClassDef.HasSource());
FUnrealPackageDefinitionInfo& ClassPackageDef = ClassDef.GetPackageDef();
PackageDef.AddCrossModuleReference(OutReferenceGatherers.UniqueCrossModuleReferences);
OutDeclarations.Logf(TEXT("\t%s_API UPackage* %s;\r\n"), *ApiString, *ClassPackageDef.GetSingletonName());
Singletons.Logf(TEXT("\t\t(UObject* (*)())%s,\r\n"), *ClassPackageDef.GetSingletonNameChopped());
const TCHAR* SingletonsArray;
const TCHAR* SingletonsCount;
if (Singletons.Len() != 0)
{
GeneratedClassRegisterFunctionText.Logf(TEXT("\t\tstatic UObject* (*const DependentSingletons[])();\r\n"));
StaticDefinitions.Logf(TEXT("\tUObject* (*const %s::DependentSingletons[])() = {\r\n"), *StaticsStructName);
StaticDefinitions.Log (*Singletons);
StaticDefinitions.Logf(TEXT("\t};\r\n"));
SingletonsArray = TEXT("DependentSingletons");
SingletonsCount = TEXT("UE_ARRAY_COUNT(DependentSingletons)");
}
else
{
SingletonsArray = TEXT("nullptr");
SingletonsCount = TEXT("0");
}
const TCHAR* FunctionsArray;
const TCHAR* FunctionsCount;
if (FunctionsToExport.Num() != 0)
{
GeneratedClassRegisterFunctionText.Log(BEGIN_WRAP_EDITOR_ONLY(bAllEditorOnlyFunctions));
GeneratedClassRegisterFunctionText.Log(TEXT("\t\tstatic const FClassFunctionLinkInfo FuncInfo[];\r\n"));
GeneratedClassRegisterFunctionText.Log(END_WRAP_EDITOR_ONLY(bAllEditorOnlyFunctions));
StaticDefinitions.Log(BEGIN_WRAP_EDITOR_ONLY(bAllEditorOnlyFunctions));
StaticDefinitions.Logf(TEXT("\tconst FClassFunctionLinkInfo %s::FuncInfo[] = {\r\n"), *StaticsStructName);
for (FUnrealFunctionDefinitionInfo* FunctionDef : FunctionsToExport)
{
const bool bIsEditorOnlyFunction = FunctionDef->HasAnyFunctionFlags(FUNC_EditorOnly);
if (!FunctionDef->IsDelegateFunction())
{
ExportFunction(Out, OutReferenceGatherers, SourceFile, *FunctionDef, bIsNoExport);
}
FUHTStringBuilder FuncHashTag;
FunctionDef->GetHashTag(ClassDef, FuncHashTag);
StaticDefinitions.Logf(
TEXT("%s\t\t{ &%s, %s },%s\r\n%s"),
BEGIN_WRAP_EDITOR_ONLY(bIsEditorOnlyFunction),
*GetSingletonNameFuncAddr(FunctionDef, OutReferenceGatherers.UniqueCrossModuleReferences),
*CreateUTF8LiteralString(FunctionDef->GetName()),
*FuncHashTag,
END_WRAP_EDITOR_ONLY(bIsEditorOnlyFunction)
);
}
StaticDefinitions.Log(TEXT("\t};\r\n"));
StaticDefinitions.Log(END_WRAP_EDITOR_ONLY(bAllEditorOnlyFunctions));
if (bAllEditorOnlyFunctions)
{
FunctionsArray = TEXT("IF_WITH_EDITOR(FuncInfo, nullptr)");
FunctionsCount = TEXT("IF_WITH_EDITOR(UE_ARRAY_COUNT(FuncInfo), 0)");
}
else
{
FunctionsArray = TEXT("FuncInfo");
FunctionsCount = TEXT("UE_ARRAY_COUNT(FuncInfo)");
}
}
else
{
FunctionsArray = TEXT("nullptr");
FunctionsCount = TEXT("0");
}
if (ClassDef.IsObjectInitializerConstructorDeclared())
{
ClassDef.SetMetaData(NAME_ObjectInitializerConstructorDeclared, TEXT(""));
}
FString MetaDataParams = OutputMetaDataCodeForObject(GeneratedClassRegisterFunctionText, StaticDefinitions, ClassDef, *FString::Printf(TEXT("%s::Class_MetaDataParams"), *StaticsStructName), TEXT("\t\t"), TEXT("\t"));
TTuple<FString, FString> PropertyRange = OutputProperties(GeneratedClassRegisterFunctionText, StaticDefinitions, OutReferenceGatherers, *FString::Printf(TEXT("%s::"), *StaticsStructName), ClassDef, TEXT("\t\t"), TEXT("\t"));
const TCHAR* InterfaceArray;
const TCHAR* InterfaceCount;
// Check to see if we have any interfaces
bool bHasInterfaces = false;
for (FUnrealStructDefinitionInfo::FBaseStructInfo& BaseStruct : ClassDef.GetBaseStructInfos())
{
if (FUnrealClassDefinitionInfo* BaseClass = UHTCast<FUnrealClassDefinitionInfo>(BaseStruct.Struct); BaseClass != nullptr && BaseClass->IsInterface())
{
bHasInterfaces = true;
break;
}
}
if (bHasInterfaces)
{
GeneratedClassRegisterFunctionText.Log(TEXT("\t\tstatic const UECodeGen_Private::FImplementedInterfaceParams InterfaceParams[];\r\n"));
StaticDefinitions.Logf(TEXT("\t\tconst UECodeGen_Private::FImplementedInterfaceParams %s::InterfaceParams[] = {\r\n"), *StaticsStructName);
for (FUnrealStructDefinitionInfo::FBaseStructInfo& BaseStruct : ClassDef.GetBaseStructInfos())
{
if (FUnrealClassDefinitionInfo* BaseClass = UHTCast<FUnrealClassDefinitionInfo>(BaseStruct.Struct); BaseClass == nullptr || !BaseClass->IsInterface())
{
continue;
}
FUnrealClassDefinitionInfo& InterClassDef = UHTCastChecked<FUnrealClassDefinitionInfo>(BaseStruct.Struct);
InterClassDef.AddCrossModuleReference(OutReferenceGatherers.UniqueCrossModuleReferences, false);
FString OffsetString = FString::Printf(TEXT("(int32)VTABLE_OFFSET(%s, %s)"), *ClassNameCPP, *InterClassDef.GetAlternateNameCPP(true));
FUHTStringBuilder IntHash;
InterClassDef.GetHashTag(ClassDef, IntHash);
StaticDefinitions.Logf(
TEXT("\t\t\t{ %s, %s, %s }, %s\r\n"),
*InterClassDef.GetSingletonNameChopped(false),
*OffsetString,
TEXT("false"),
*IntHash
);
}
StaticDefinitions.Log(TEXT("\t\t};\r\n"));
InterfaceArray = TEXT("InterfaceParams");
InterfaceCount = TEXT("UE_ARRAY_COUNT(InterfaceParams)");
}
else
{
InterfaceArray = TEXT("nullptr");
InterfaceCount = TEXT("0");
}
GeneratedClassRegisterFunctionText.Logf(TEXT("\t\tstatic const FCppClassTypeInfoStatic StaticCppClassTypeInfo;\r\n"));
StaticDefinitions.Logf(TEXT("\tconst FCppClassTypeInfoStatic %s::StaticCppClassTypeInfo = {\r\n"), *StaticsStructName);
StaticDefinitions.Logf(TEXT("\t\tTCppClassTypeTraits<%s>::IsAbstract,\r\n"), *ClassDef.GetAlternateNameCPP(ClassDef.HasAllClassFlags(CLASS_Interface)));
StaticDefinitions.Logf(TEXT("\t};\r\n"));
GeneratedClassRegisterFunctionText.Log (TEXT("\t\tstatic const UECodeGen_Private::FClassParams ClassParams;\r\n"));
uint32 ClassFlags = (uint32)ClassDef.GetClassFlags();
if (!bIsNoExport)
{
ClassFlags = ClassFlags | CLASS_MatchedSerializers;
}
ClassFlags = ClassFlags & CLASS_SaveInCompiledInClasses;
StaticDefinitions.Logf(TEXT("\tconst UECodeGen_Private::FClassParams %s::ClassParams = {\r\n"), *StaticsStructName);
StaticDefinitions.Logf(TEXT("\t\t&%s::StaticClass,\r\n"), *ClassNameCPP);
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), (ClassDef.GetClassConfigName() != NAME_None) ? *CreateUTF8LiteralString(ClassDef.GetClassConfigName().ToString()) : TEXT("nullptr"));
StaticDefinitions.Log (TEXT("\t\t&StaticCppClassTypeInfo,\r\n"));
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), SingletonsArray);
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), FunctionsArray);
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), *PropertyRange.Get<0>());
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), InterfaceArray);
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), SingletonsCount);
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), FunctionsCount);
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), *PropertyRange.Get<1>());
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), InterfaceCount);
StaticDefinitions.Logf(TEXT("\t\t0x%08Xu,\r\n"), ClassFlags);
StaticDefinitions.Logf(TEXT("\t\t%s\r\n"), *MetaDataParams);
StaticDefinitions.Log (TEXT("\t};\r\n"));
GeneratedClassRegisterFunctionText.Logf(TEXT("\t};\r\n"));
GeneratedClassRegisterFunctionText.Log(*StaticDefinitions);
Out.Logf(TEXT("\tIMPLEMENT_CLASS_NO_AUTO_REGISTRATION(%s);\r\n"), *ClassNameCPP);
GeneratedClassRegisterFunctionText.Logf(TEXT("\tUClass* %s\r\n"), *SingletonName);
GeneratedClassRegisterFunctionText.Logf(TEXT("\t{\r\n"));
FString OuterSingletonName = FString::Printf(TEXT("Z_Registration_Info_UClass_%s.OuterSingleton"), *ClassNameCPP);
GeneratedClassRegisterFunctionText.Logf(TEXT("\t\tif (!%s)\r\n"), *OuterSingletonName);
GeneratedClassRegisterFunctionText.Logf(TEXT("\t\t{\r\n"));
GeneratedClassRegisterFunctionText.Logf(TEXT("\t\t\tUECodeGen_Private::ConstructUClass(%s, %s::ClassParams);\r\n"), *OuterSingletonName, *StaticsStructName);
TArray<FString> SparseClassDataTypes;
ClassDef.GetSparseClassDataTypes(SparseClassDataTypes);
for (const FString& SparseClassDataString : SparseClassDataTypes)
{
GeneratedClassRegisterFunctionText.Logf(TEXT("\t\t\t%s->SetSparseClassDataStruct(F%s::StaticStruct());\r\n"), *OuterSingletonName, *SparseClassDataString);
}
GeneratedClassRegisterFunctionText.Logf(TEXT("\t\t}\r\n"));
GeneratedClassRegisterFunctionText.Logf(TEXT("\t\treturn %s;\r\n"), *OuterSingletonName);
GeneratedClassRegisterFunctionText.Logf(TEXT("\t}\r\n"));
Out.Log(*GeneratedClassRegisterFunctionText);
}
if (OutFriendText.Len() && bIsNoExport)
{
Out.Logf(TEXT("\t/* friend declarations for pasting into noexport class %s\r\n"), *ClassNameCPP);
Out.Log(OutFriendText);
Out.Logf(TEXT("\t*/\r\n"));
OutFriendText.Reset();
}
FString SingletonName = ClassDef.GetSingletonName(true);
SingletonName.ReplaceInline(TEXT("()"), TEXT(""), ESearchCase::CaseSensitive); // function address
// Append base class' hash at the end of the generated code, this will force update derived classes
// when base class changes during hot-reload.
uint32 BaseClassHash = 0;
FUnrealClassDefinitionInfo* SuperClassDef = ClassDef.GetSuperClass();
if (SuperClassDef && !SuperClassDef->HasAnyClassFlags(CLASS_Intrinsic))
{
BaseClassHash = SuperClassDef->GetHash(ClassDef);
}
FUHTStringBuilder HashBuilder;
HashBuilder.Logf(TEXT("\r\n// %u\r\n"), BaseClassHash);
// Append info for the sparse class data struct onto the text to be hashed
TArray<FString> SparseClassDataTypes;
ClassDef.GetSparseClassDataTypes(SparseClassDataTypes);
for (const FString& SparseClassDataString : SparseClassDataTypes)
{
if (FUnrealScriptStructDefinitionInfo* SparseScriptStructDef = GTypeDefinitionInfoMap.FindByName<FUnrealScriptStructDefinitionInfo>(*SparseClassDataString))
{
HashBuilder.Logf(TEXT("%s\r\n"), *SparseScriptStructDef->GetName());
for (FUnrealPropertyDefinitionInfo* ChildDef : TUHTFieldRange<FUnrealPropertyDefinitionInfo>(*SparseScriptStructDef))
{
HashBuilder.Logf(TEXT("%s %s\r\n"), *ChildDef->GetCPPType(), *ChildDef->GetNameWithDeprecated());
}
}
}
if (bIncludeDebugOutput)
{
Out.Log(TEXT("#if 0\r\n"));
Out.Log(HashBuilder);
Out.Log(TEXT("#endif\r\n"));
}
GeneratedClassRegisterFunctionText.Log(HashBuilder);
// Calculate generated class initialization code hash so that we know when it changes after hot-reload
uint32 ClassHash = GenerateTextHash(*GeneratedClassRegisterFunctionText);
ClassDef.SetHash(ClassHash);
Out.Logf(TEXT("\ttemplate<> %sUClass* StaticClass<%s>()\r\n"), *GetAPIString(), *ClassNameCPP);
Out.Logf(TEXT("\t{\r\n"));
Out.Logf(TEXT("\t\treturn %s::StaticClass();\r\n"), *ClassNameCPP);
Out.Logf(TEXT("\t}\r\n"));
if (ClassHasReplicatedProperties(ClassDef))
{
Out.Logf(TEXT(
"\r\n"
"\tvoid %s::ValidateGeneratedRepEnums(const TArray<struct FRepRecord>& ClassReps) const\r\n"
"\t{\r\n"
), *ClassNameCPP);
FUHTStringBuilder NameBuilder;
FUHTStringBuilder ValidationBuilder;
ValidationBuilder.Log(TEXT("\t\tconst bool bIsValid = true"));
for (int32 i = ClassDef.GetFirstOwnedClassRep(); i < ClassDef.GetClassReps().Num(); ++i)
{
const FUnrealPropertyDefinitionInfo* PropertyDef = ClassDef.GetClassReps()[i];
const FString PropertyName = PropertyDef->GetName();
NameBuilder.Logf(TEXT("\t\tstatic const FName Name_%s(TEXT(\"%s\"));\r\n"), *PropertyName, *PropertyName);
if (!PropertyDef->IsStaticArray())
{
ValidationBuilder.Logf(TEXT("\r\n\t\t\t&& Name_%s == ClassReps[(int32)ENetFields_Private::%s].Property->GetFName()"), *PropertyName, *PropertyName);
}
else
{
ValidationBuilder.Logf(TEXT("\r\n\t\t\t&& Name_%s == ClassReps[(int32)ENetFields_Private::%s_STATIC_ARRAY].Property->GetFName()"), *PropertyName, *PropertyName);
}
}
ValidationBuilder.Log(TEXT(";\r\n"));
Out.Logf(TEXT(
"%s\r\n" // NameBuilder
"%s\r\n" // ValidationBuilder
"\t\tcheckf(bIsValid, TEXT(\"UHT Generated Rep Indices do not match runtime populated Rep Indices for properties in %s\"));\r\n"
"\t}\r\n"
), *NameBuilder, *ValidationBuilder, *ClassNameCPP);
}
}
void FNativeClassHeaderGenerator::ExportFunction(FOutputDevice& Out, FReferenceGatherers& OutReferenceGatherers, const FUnrealSourceFile& SourceFile, FUnrealFunctionDefinitionInfo& FunctionDef, bool bIsNoExport) const
{
FunctionDef.AddCrossModuleReference(OutReferenceGatherers.UniqueCrossModuleReferences, true);
FUnrealFunctionDefinitionInfo* SuperFunctionDef = FunctionDef.GetSuperFunction();
const bool bIsEditorOnlyFunction = FunctionDef.HasAnyFunctionFlags(FUNC_EditorOnly);
bool bIsDelegate = FunctionDef.HasAnyFunctionFlags(FUNC_Delegate);
const FString& SingletonName = FunctionDef.GetSingletonName(true);
FString StaticsStructName = FunctionDef.GetSingletonNameChopped(true) + TEXT("_Statics");
FUHTStringBuilder CurrentFunctionText;
FUHTStringBuilder StaticDefinitions;
// Begin wrapping editor only functions. Note: This should always be the first step!
if (bIsEditorOnlyFunction)
{
CurrentFunctionText.Logf(BeginEditorOnlyGuard);
}
CurrentFunctionText.Logf(TEXT("\tstruct %s\r\n"), *StaticsStructName);
CurrentFunctionText.Log (TEXT("\t{\r\n"));
bool bParamsInStatic = bIsNoExport || !FunctionDef.HasAnyFunctionFlags(FUNC_Event); // non-events do not export a params struct, so lets do that locally for offset determination
if (bParamsInStatic)
{
TArray<FUnrealScriptStructDefinitionInfo*> StructDefs = FindNoExportStructs(&FunctionDef);
for (FUnrealScriptStructDefinitionInfo* StructDef : StructDefs)
{
ExportMirrorsForNoexportStruct(CurrentFunctionText, *StructDef, /*Indent=*/ 2);
}
ExportEventParm(CurrentFunctionText, OutReferenceGatherers.ForwardDeclarations, FunctionDef, /*Indent=*/ 2, /*bOutputConstructor=*/ false, EExportingState::TypeEraseDelegates);
}
FUnrealFieldDefinitionInfo* FieldOuterDef = UHTCast<FUnrealFieldDefinitionInfo>(FunctionDef.GetOuter());
FString OuterFunc;
if (FUnrealObjectDefinitionInfo* OuterDef = FunctionDef.GetOuter())
{
FUnrealPackageDefinitionInfo* OuterPackageDef = UHTCast<FUnrealPackageDefinitionInfo>(OuterDef);
OuterFunc = OuterPackageDef ? GetPackageSingletonNameFuncAddr(*OuterPackageDef, OutReferenceGatherers.UniqueCrossModuleReferences) : GetSingletonNameFuncAddr(FunctionDef.GetOwnerClass(), OutReferenceGatherers.UniqueCrossModuleReferences);
}
else
{
OuterFunc = TEXT("nullptr");
}
FString StructureSize;
if (FunctionDef.GetProperties().Num())
{
FUnrealFunctionDefinitionInfo* TempFunctionDef = &FunctionDef;
while (TempFunctionDef->GetSuperFunction())
{
TempFunctionDef = TempFunctionDef->GetSuperFunction();
}
FString FunctionName = TempFunctionDef->GetName();
if (TempFunctionDef->HasAnyFunctionFlags(FUNC_Delegate))
{
FunctionName.LeftChopInline(HEADER_GENERATED_DELEGATE_SIGNATURE_SUFFIX_LENGTH, false);
}
if (bParamsInStatic)
{
StructureSize = FString::Printf(TEXT("sizeof(%s::%s)"), *StaticsStructName, *GetEventStructParamsName(*TempFunctionDef->GetOuter(), *FunctionName));
}
else
{
StructureSize = FString::Printf(TEXT("sizeof(%s)"), *GetEventStructParamsName(*TempFunctionDef->GetOuter(), *FunctionName));
}
}
else
{
StructureSize = TEXT("0");
}
bool bIsSparse = FunctionDef.GetFunctionType() == EFunctionType::SparseDelegate;
const TCHAR* UFunctionObjectFlags = TEXT("RF_Public|RF_Transient|RF_MarkAsNative");
TTuple<FString, FString> PropertyRange = OutputProperties(CurrentFunctionText, StaticDefinitions, OutReferenceGatherers, *FString::Printf(TEXT("%s::"), *StaticsStructName), FunctionDef, TEXT("\t\t"), TEXT("\t"));
const FFuncInfo& FunctionData = FunctionDef.GetFunctionData();
const bool bIsNet = FunctionDef.HasAnyFunctionFlags(FUNC_NetRequest | FUNC_NetResponse);
FString MetaDataParams = OutputMetaDataCodeForObject(CurrentFunctionText, StaticDefinitions, FunctionDef, *FString::Printf(TEXT("%s::Function_MetaDataParams"), *StaticsStructName), TEXT("\t\t"), TEXT("\t"));
CurrentFunctionText.Log(TEXT("\t\tstatic const UECodeGen_Private::FFunctionParams FuncParams;\r\n"));
StaticDefinitions.Logf(
TEXT("\tconst UECodeGen_Private::FFunctionParams %s::FuncParams = { (UObject*(*)())%s, %s, %s, %s, %s, %s, %s, %s, %s, (EFunctionFlags)0x%08X, %d, %d, %s };\r\n"),
*StaticsStructName,
*OuterFunc,
*GetSingletonNameFuncAddr(SuperFunctionDef, OutReferenceGatherers.UniqueCrossModuleReferences),
*CreateUTF8LiteralString(FunctionDef.GetName()),
(bIsSparse ? *CreateUTF8LiteralString(FunctionDef.GetSparseOwningClassName().ToString()) : TEXT("nullptr")),
(bIsSparse ? *CreateUTF8LiteralString(FunctionDef.GetSparseDelegateName().ToString()) : TEXT("nullptr")),
*StructureSize,
*PropertyRange.Get<0>(),
*PropertyRange.Get<1>(),
UFunctionObjectFlags,
(uint32)FunctionDef.GetFunctionFlags(),
bIsNet ? FunctionData.RPCId : 0,
bIsNet ? FunctionData.RPCResponseId : 0,
*MetaDataParams
);
CurrentFunctionText.Log(TEXT("\t};\r\n"));
CurrentFunctionText.Log(*StaticDefinitions);
CurrentFunctionText.Logf(TEXT("\tUFunction* %s\r\n"), *SingletonName);
CurrentFunctionText.Log (TEXT("\t{\r\n"));
CurrentFunctionText.Logf(TEXT("\t\tstatic UFunction* ReturnFunction = nullptr;\r\n"));
CurrentFunctionText.Logf(TEXT("\t\tif (!ReturnFunction)\r\n"));
CurrentFunctionText.Logf(TEXT("\t\t{\r\n"));
CurrentFunctionText.Logf(TEXT("\t\t\tUECodeGen_Private::ConstructUFunction(&ReturnFunction, %s::FuncParams);\r\n"), *StaticsStructName);
CurrentFunctionText.Log (TEXT("\t\t}\r\n"));
CurrentFunctionText.Log (TEXT("\t\treturn ReturnFunction;\r\n"));
CurrentFunctionText.Log (TEXT("\t}\r\n"));
// End wrapping editor only functions. Note: This should always be the last step!
if (bIsEditorOnlyFunction)
{
CurrentFunctionText.Logf(EndEditorOnlyGuard);
}
uint32 FunctionHash = GenerateTextHash(*CurrentFunctionText);
FunctionDef.SetHash(FunctionHash);
Out.Log(CurrentFunctionText);
}
void FNativeClassHeaderGenerator::ExportNatives(FOutputDevice& Out, FUnrealClassDefinitionInfo& ClassDef)
{
const FString ClassCPPName = ClassDef.GetAlternateNameCPP();
const FString TypeName = ClassDef.GetAlternateNameCPP(ClassDef.HasAnyClassFlags(CLASS_Interface));
Out.Logf(TEXT("\tvoid %s::StaticRegisterNatives%s()\r\n"), *ClassCPPName, *ClassCPPName);
Out.Log(TEXT("\t{\r\n"));
{
bool bAllEditorOnly = true;
TArray<TTuple<FUnrealFunctionDefinitionInfo*, FString>> NamedFunctionsToExport;
for (TSharedRef<FUnrealFunctionDefinitionInfo> FunctionDef : ClassDef.GetFunctions())
{
if (FunctionDef->HasSpecificFunctionFlags(FUNC_Native | FUNC_NetRequest, FUNC_Native))
{
FString FunctionName = CreateUTF8LiteralString(FunctionDef->GetName());
NamedFunctionsToExport.Emplace(&*FunctionDef, MoveTemp(FunctionName));
if (!FunctionDef->HasAnyFunctionFlags(FUNC_EditorOnly))
{
bAllEditorOnly = false;
}
}
}
Algo::SortBy(NamedFunctionsToExport, [](const TTuple<FUnrealFunctionDefinitionInfo*, FString>& Pair){ return Pair.Get<0>()->GetFName(); }, FNameLexicalLess());
if (NamedFunctionsToExport.Num() > 0)
{
FMacroBlockEmitter EditorOnly(Out, TEXT("WITH_EDITOR"));
EditorOnly(bAllEditorOnly);
Out.Logf(TEXT("\t\tUClass* Class = %s::StaticClass();\r\n"), *ClassCPPName);
Out.Log(TEXT("\t\tstatic const FNameNativePtrPair Funcs[] = {\r\n"));
for (const TTuple<FUnrealFunctionDefinitionInfo*, FString>& Func : NamedFunctionsToExport)
{
FUnrealFunctionDefinitionInfo* FunctionDef = Func.Get<0>();
EditorOnly(FunctionDef->HasAnyFunctionFlags(FUNC_EditorOnly));
Out.Logf(
TEXT("\t\t\t{ %s, &%s::exec%s },\r\n"),
*Func.Get<1>(),
*TypeName,
*FunctionDef->GetName()
);
}
EditorOnly(bAllEditorOnly);
Out.Log(TEXT("\t\t};\r\n"));
Out.Logf(TEXT("\t\tFNativeFunctionRegistrar::RegisterFunctions(Class, Funcs, UE_ARRAY_COUNT(Funcs));\r\n"));
}
}
Out.Logf(TEXT("\t}\r\n"));
}
void FNativeClassHeaderGenerator::ExportInterfaceCallFunctions(FOutputDevice& OutCpp, FUHTStringBuilder& Out, FReferenceGatherers& OutReferenceGatherers, const TArray<FUnrealFunctionDefinitionInfo*>& CallbackFunctions, const TCHAR* ClassName) const
{
const FString& APIString = GetAPIString();
for (FUnrealFunctionDefinitionInfo* FunctionDef : CallbackFunctions)
{
FString FunctionName = FunctionDef->GetName();
const FFuncInfo& FunctionData = FunctionDef->GetFunctionData();
const TCHAR* ConstQualifier = FunctionDef->HasAllFunctionFlags(FUNC_Const) ? TEXT("const ") : TEXT("");
FString ExtraParam = FString::Printf(TEXT("%sUObject* O"), ConstQualifier);
ExportNativeFunctionHeader(Out, OutReferenceGatherers.ForwardDeclarations, *FunctionDef, FunctionData, EExportFunctionType::Interface, EExportFunctionHeaderStyle::Declaration, *ExtraParam, *APIString);
Out.Logf( TEXT(";" LINE_TERMINATOR_ANSI) );
FString FunctionNameName = FString::Printf(TEXT("NAME_%s_%s"), *UHTCastChecked<FUnrealStructDefinitionInfo>(FunctionDef->GetOuter()).GetAlternateNameCPP(), *FunctionName);
OutCpp.Logf(TEXT("\tstatic FName %s = FName(TEXT(\"%s\"));" LINE_TERMINATOR_ANSI), *FunctionNameName, *FunctionDef->GetFName().ToString());
ExportNativeFunctionHeader(OutCpp, OutReferenceGatherers.ForwardDeclarations, *FunctionDef, FunctionData, EExportFunctionType::Interface, EExportFunctionHeaderStyle::Definition, *ExtraParam, *APIString);
OutCpp.Logf( TEXT(LINE_TERMINATOR_ANSI "\t{" LINE_TERMINATOR_ANSI) );
OutCpp.Logf(TEXT("\t\tcheck(O != NULL);" LINE_TERMINATOR_ANSI));
OutCpp.Logf(TEXT("\t\tcheck(O->GetClass()->ImplementsInterface(U%s::StaticClass()));" LINE_TERMINATOR_ANSI), ClassName);
FParmsAndReturnProperties Parameters = GetFunctionParmsAndReturn(*FunctionDef);
// See if we need to create Parms struct
const bool bHasParms = Parameters.HasParms();
if (bHasParms)
{
FString EventParmStructName = GetEventStructParamsName(*FunctionDef->GetOuter(), *FunctionName);
OutCpp.Logf(TEXT("\t\t%s Parms;" LINE_TERMINATOR_ANSI), *EventParmStructName);
}
OutCpp.Logf(TEXT("\t\tUFunction* const Func = O->FindFunction(%s);" LINE_TERMINATOR_ANSI), *FunctionNameName);
OutCpp.Log(TEXT("\t\tif (Func)" LINE_TERMINATOR_ANSI));
OutCpp.Log(TEXT("\t\t{" LINE_TERMINATOR_ANSI));
// code to populate Parms struct
for (FUnrealPropertyDefinitionInfo* ParamDef : Parameters.Parms)
{
const FString ParamName = ParamDef->GetNameWithDeprecated();
OutCpp.Logf(TEXT("\t\t\tParms.%s=%s;" LINE_TERMINATOR_ANSI), *ParamName, *ParamName);
}
const FString ObjectRef = FunctionDef->HasAllFunctionFlags(FUNC_Const) ? FString::Printf(TEXT("const_cast<UObject*>(O)")) : TEXT("O");
OutCpp.Logf(TEXT("\t\t\t%s->ProcessEvent(Func, %s);" LINE_TERMINATOR_ANSI), *ObjectRef, bHasParms ? TEXT("&Parms") : TEXT("NULL"));
for (FUnrealPropertyDefinitionInfo* ParamDef : Parameters.Parms)
{
if(ParamDef->HasAllPropertyFlags(CPF_OutParm) && !ParamDef->HasAnyPropertyFlags(CPF_ConstParm|CPF_ReturnParm))
{
const FString ParamName = ParamDef->GetNameWithDeprecated();
OutCpp.Logf(TEXT("\t\t\t%s=Parms.%s;" LINE_TERMINATOR_ANSI), *ParamName, *ParamName);
}
}
OutCpp.Log(TEXT("\t\t}" LINE_TERMINATOR_ANSI));
// else clause to call back into native if it's a BlueprintNativeEvent
if (FunctionDef->HasAnyFunctionFlags(FUNC_Native))
{
OutCpp.Logf(TEXT("\t\telse if (auto I = (%sI%s*)(O->GetNativeInterfaceAddress(U%s::StaticClass())))" LINE_TERMINATOR_ANSI), ConstQualifier, ClassName, ClassName);
OutCpp.Log(TEXT("\t\t{" LINE_TERMINATOR_ANSI));
OutCpp.Log(TEXT("\t\t\t"));
if (Parameters.Return)
{
OutCpp.Log(TEXT("Parms.ReturnValue = "));
}
OutCpp.Logf(TEXT("I->%s_Implementation("), *FunctionName);
bool bFirst = true;
for (FUnrealPropertyDefinitionInfo* ParamDef : Parameters.Parms)
{
if (!bFirst)
{
OutCpp.Logf(TEXT(","));
}
bFirst = false;
OutCpp.Log(*ParamDef->GetName());
}
OutCpp.Logf(TEXT(");" LINE_TERMINATOR_ANSI));
OutCpp.Logf(TEXT("\t\t}" LINE_TERMINATOR_ANSI));
}
if (Parameters.Return)
{
OutCpp.Logf(TEXT("\t\treturn Parms.ReturnValue;" LINE_TERMINATOR_ANSI));
}
OutCpp.Logf(TEXT("\t}" LINE_TERMINATOR_ANSI));
}
}
/**
* Gets preprocessor string to emit GENERATED_U*_BODY() macro is deprecated.
*
* @param MacroName Name of the macro to be deprecated.
*
* @returns Preprocessor string to emit the message.
*/
FString GetGeneratedMacroDeprecationWarning(const TCHAR* MacroName)
{
// Deprecation warning is disabled right now. After people get familiar with the new macro it should be re-enabled.
//return FString() + TEXT("EMIT_DEPRECATED_WARNING_MESSAGE(\"") + MacroName + TEXT("() macro is deprecated. Please use GENERATED_BODY() macro instead.\")") LINE_TERMINATOR;
return TEXT("");
}
/**
* Returns a string with access specifier that was met before parsing GENERATED_BODY() macro to preserve it.
*
* @param Class Class for which to return the access specifier.
*
* @returns Access specifier string.
*/
FString GetPreservedAccessSpecifierString(FUnrealClassDefinitionInfo& ClassDef)
{
FString PreservedAccessSpecifier;
switch (ClassDef.GetGeneratedBodyMacroAccessSpecifier())
{
case EAccessSpecifier::ACCESS_Private:
PreservedAccessSpecifier = "private:";
break;
case EAccessSpecifier::ACCESS_Protected:
PreservedAccessSpecifier = "protected:";
break;
case EAccessSpecifier::ACCESS_Public:
PreservedAccessSpecifier = "public:";
break;
case EAccessSpecifier::ACCESS_NotAnAccessSpecifier :
PreservedAccessSpecifier = FString::Printf(TEXT("static_assert(false, \"Unknown access specifier for GENERATED_BODY() macro in class %s.\");"), *ClassDef.GetName());
break;
}
return PreservedAccessSpecifier + LINE_TERMINATOR;
}
void WriteMacro(FOutputDevice& Output, const FString& MacroName, FString MacroContent)
{
Output.Log(Macroize(*MacroName, MoveTemp(MacroContent)));
}
void FNativeClassHeaderGenerator::ExportClassFromSourceFileInner(
FOutputDevice& OutGeneratedHeaderText,
FOutputDevice& OutCpp,
FOutputDevice& OutDeclarations,
FReferenceGatherers& OutReferenceGatherers,
FUnrealClassDefinitionInfo& ClassDef,
const FUnrealSourceFile& SourceFile,
EExportClassOutFlags& OutFlags
) const
{
FUHTStringBuilder StandardUObjectConstructorsMacroCall;
FUHTStringBuilder EnhancedUObjectConstructorsMacroCall;
FUnrealClassDefinitionInfo* SuperClassDef = ClassDef.GetSuperClass();
// C++ -> VM stubs (native function execs)
FUHTStringBuilder ClassMacroCalls;
FUHTStringBuilder ClassNoPureDeclsMacroCalls;
ExportNativeFunctions(OutGeneratedHeaderText, OutCpp, ClassMacroCalls, ClassNoPureDeclsMacroCalls, OutReferenceGatherers, SourceFile, ClassDef);
// Get Callback functions
TArray<FUnrealFunctionDefinitionInfo*> CallbackFunctions;
for (TSharedRef<FUnrealFunctionDefinitionInfo> FunctionDef : ClassDef.GetFunctions())
{
if (FunctionDef->HasAnyFunctionFlags(FUNC_Event) && FunctionDef->GetSuperFunction() == nullptr)
{
CallbackFunctions.Add(&*FunctionDef);
}
}
FUHTStringBuilder PrologMacroCalls;
if (CallbackFunctions.Num() != 0)
{
Algo::SortBy(CallbackFunctions, [](FUnrealFunctionDefinitionInfo* Obj) { return Obj->GetName(); });
FUHTStringBuilder UClassMacroContent;
// export parameters structs for all events and delegates
for (FUnrealFunctionDefinitionInfo* FunctionDef : CallbackFunctions)
{
ExportEventParm(UClassMacroContent, OutReferenceGatherers.ForwardDeclarations, *FunctionDef, /*Indent=*/ 1, /*bOutputConstructor=*/ true, EExportingState::Normal);
}
FString MacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine(), TEXT("_EVENT_PARMS"));
WriteMacro(OutGeneratedHeaderText, MacroName, UClassMacroContent);
PrologMacroCalls.Logf(TEXT("\t%s\r\n"), *MacroName);
// VM -> C++ proxies (events and delegates).
FOutputDeviceNull NullOutput;
FOutputDevice& CallbackOut = ClassDef.IsNoExport() ? NullOutput : OutCpp;
FString CallbackWrappersMacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine(), TEXT("_CALLBACK_WRAPPERS"));
ExportCallbackFunctions(
OutGeneratedHeaderText,
CallbackOut,
OutReferenceGatherers.ForwardDeclarations,
CallbackFunctions,
*CallbackWrappersMacroName,
ClassDef.HasAnyClassFlags(CLASS_Interface) ? EExportCallbackType::Interface : EExportCallbackType::Class,
*GetAPIString()
);
ClassMacroCalls.Logf(TEXT("\t%s\r\n"), *CallbackWrappersMacroName);
ClassNoPureDeclsMacroCalls.Logf(TEXT("\t%s\r\n"), *CallbackWrappersMacroName);
}
// Class definition.
if (!ClassDef.IsNoExport())
{
ExportNatives(OutCpp, ClassDef);
}
FUHTStringBuilder FriendText;
ExportNativeGeneratedInitCode(OutCpp, OutDeclarations, OutReferenceGatherers, SourceFile, ClassDef, FriendText);
// the name for the C++ version of the UClass
const FString ClassCPPName = ClassDef.GetAlternateNameCPP();
const FString SuperClassCPPName = (SuperClassDef ? SuperClassDef->GetAlternateNameCPP() : TEXT("None"));
FString APIArg = PackageDef.GetShortUpperName();
if (!ClassDef.HasAnyClassFlags(CLASS_MinimalAPI))
{
APIArg = TEXT("NO");
}
FString GeneratedSerializeFunctionCPP;
FString GeneratedSerializeFunctionHeaderMacroName;
// Only write out adapters if the user has provided one or the other of the Serialize overloads
if (FMath::CountBits((uint32)ClassDef.GetArchiveType()) == 1)
{
FUHTStringBuilder Boilerplate, BoilerPlateCPP;
const TCHAR* MacroNameHeader;
const TCHAR* MacroNameCPP;
GeneratedSerializeFunctionHeaderMacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine(), TEXT("_ARCHIVESERIALIZER"));
if (ClassDef.GetArchiveType() == ESerializerArchiveType::StructuredArchiveRecord)
{
MacroNameHeader = TEXT("DECLARE_FARCHIVE_SERIALIZER");
MacroNameCPP = TEXT("IMPLEMENT_FARCHIVE_SERIALIZER");
}
else
{
MacroNameHeader = TEXT("DECLARE_FSTRUCTUREDARCHIVE_SERIALIZER");
MacroNameCPP = TEXT("IMPLEMENT_FSTRUCTUREDARCHIVE_SERIALIZER");
}
// if the existing Serialize function was wrapped in a compiler define directive, we need to replicate that on the generated function
if (ClassDef.GetEnclosingDefine().Len())
{
OutGeneratedHeaderText.Logf(TEXT("#if %s\r\n"), *ClassDef.GetEnclosingDefine());
BoilerPlateCPP.Logf(TEXT("#if %s\r\n"), *ClassDef.GetEnclosingDefine());
}
Boilerplate.Logf(TEXT("\t%s(%s, %s_API)\r\n"), MacroNameHeader, *ClassCPPName, *APIArg);
OutGeneratedHeaderText.Log(Macroize(*GeneratedSerializeFunctionHeaderMacroName, *Boilerplate));
BoilerPlateCPP.Logf(TEXT("\t%s(%s)\r\n"), MacroNameCPP, *ClassCPPName);
if (ClassDef.GetEnclosingDefine().Len())
{
OutGeneratedHeaderText.Logf(TEXT("#else\r\n"));
OutGeneratedHeaderText.Log(Macroize(*GeneratedSerializeFunctionHeaderMacroName, TEXT("")));
OutGeneratedHeaderText.Logf(TEXT("#endif\r\n"));
BoilerPlateCPP.Logf(TEXT("#endif\r\n"));
}
GeneratedSerializeFunctionCPP = BoilerPlateCPP;
}
{
FUHTStringBuilder Boilerplate;
// Export the class's native function registration.
Boilerplate.Logf(TEXT("private:\r\n"));
Boilerplate.Logf(TEXT("\tstatic void StaticRegisterNatives%s();\r\n"), *ClassCPPName);
Boilerplate.Log(*FriendText);
Boilerplate.Logf(TEXT("public:\r\n"));
const bool bCastedClass = ClassDef.HasAnyCastFlags(CASTCLASS_AllFlags) && SuperClassDef && ClassDef.GetClassCastFlags() != SuperClassDef->GetClassCastFlags();
Boilerplate.Logf(TEXT("\tDECLARE_CLASS(%s, %s, COMPILED_IN_FLAGS(%s%s), %s, TEXT(\"%s\"), %s_API)\r\n"),
*ClassCPPName,
*SuperClassCPPName,
ClassDef.HasAnyClassFlags(CLASS_Abstract) ? TEXT("CLASS_Abstract") : TEXT("0"),
*GetClassFlagExportText(ClassDef),
bCastedClass ? *FString::Printf(TEXT("CASTCLASS_%s"), *ClassCPPName) : TEXT("CASTCLASS_None"),
*ClassDef.GetTypePackageName(),
*APIArg);
Boilerplate.Logf(TEXT("\tDECLARE_SERIALIZER(%s)\r\n"), *ClassCPPName);
// Add the serialization function declaration if we generated one
if (GeneratedSerializeFunctionHeaderMacroName.Len() > 0)
{
Boilerplate.Logf(TEXT("\t%s\r\n"), *GeneratedSerializeFunctionHeaderMacroName);
}
if (SuperClassDef && ClassDef.GetClassWithin() != SuperClassDef->GetClassWithin())
{
Boilerplate.Logf(TEXT("\tDECLARE_WITHIN(%s)\r\n"), *ClassDef.GetClassWithin()->GetAlternateNameCPP());
}
if (ClassDef.HasAnyClassFlags(CLASS_Interface))
{
ExportConstructorsMacros(OutGeneratedHeaderText, OutCpp, StandardUObjectConstructorsMacroCall, EnhancedUObjectConstructorsMacroCall, SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine()), ClassDef, *APIArg);
FString InterfaceMacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine(), TEXT("_GENERATED_UINTERFACE_BODY"));
OutGeneratedHeaderText.Log(Macroize(*(InterfaceMacroName + TEXT("()")), *Boilerplate));
int32 ClassGeneratedBodyLine = ClassDef.GetGeneratedBodyLine();
FString DeprecationWarning = GetGeneratedMacroDeprecationWarning(TEXT("GENERATED_UINTERFACE_BODY"));
const TCHAR* Offset = TEXT("\t");
OutGeneratedHeaderText.Log(
Macroize(
*SourceFile.GetGeneratedBodyMacroName(ClassGeneratedBodyLine, true),
FString::Printf(TEXT("\t%s\t%s\t%s()" LINE_TERMINATOR_ANSI "%s\t%s")
, *DeprecationWarning
, DisableDeprecationWarnings
, *InterfaceMacroName
, *StandardUObjectConstructorsMacroCall
, EnableDeprecationWarnings
)
)
);
OutGeneratedHeaderText.Log(
Macroize(
*SourceFile.GetGeneratedBodyMacroName(ClassGeneratedBodyLine),
FString::Printf(TEXT("\t%s\t%s()" LINE_TERMINATOR_ANSI "%s%s\t%s")
, DisableDeprecationWarnings
, *InterfaceMacroName
, *EnhancedUObjectConstructorsMacroCall
, *GetPreservedAccessSpecifierString(ClassDef)
, EnableDeprecationWarnings
)
)
);
// =============================================
// Export the pure interface version of the class
// the name of the pure interface class
FString InterfaceCPPName = ClassDef.GetAlternateNameCPP(true);
FString SuperInterfaceCPPName = SuperClassDef->GetAlternateNameCPP(true);
// Thunk functions
FUHTStringBuilder InterfaceBoilerplate;
InterfaceBoilerplate.Logf(TEXT("protected:\r\n\tvirtual ~%s() {}\r\n"), *InterfaceCPPName);
InterfaceBoilerplate.Logf(TEXT("public:\r\n\ttypedef %s UClassType;\r\n"), *ClassCPPName);
InterfaceBoilerplate.Logf(TEXT("\ttypedef %s ThisClass;\r\n"), *InterfaceCPPName);
ExportInterfaceCallFunctions(OutCpp, InterfaceBoilerplate, OutReferenceGatherers, CallbackFunctions, *ClassDef.GetName());
// we'll need a way to get to the UObject portion of a native interface, so that we can safely pass native interfaces
// to script VM functions
if (SuperClassDef->IsChildOf(*GUInterfaceDef))
{
// Note: This used to be declared as a pure virtual function, but it was changed here in order to allow the Blueprint nativization process
// to detect C++ interface classes that explicitly declare pure virtual functions via type traits. This code will no longer trigger that check.
InterfaceBoilerplate.Logf(TEXT("\tvirtual UObject* _getUObject() const { return nullptr; }\r\n"));
}
if (ClassHasReplicatedProperties(ClassDef))
{
WriteReplicatedMacroData(*ClassCPPName, *APIArg, ClassDef, InterfaceBoilerplate, SourceFile, OutFlags);
}
FString NoPureDeclsMacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine(), TEXT("_INCLASS_IINTERFACE_NO_PURE_DECLS"));
WriteMacro(OutGeneratedHeaderText, NoPureDeclsMacroName, InterfaceBoilerplate);
ClassNoPureDeclsMacroCalls.Logf(TEXT("\t%s\r\n"), *NoPureDeclsMacroName);
FString MacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine(), TEXT("_INCLASS_IINTERFACE"));
WriteMacro(OutGeneratedHeaderText, MacroName, InterfaceBoilerplate);
ClassMacroCalls.Logf(TEXT("\t%s\r\n"), *MacroName);
}
else
{
// export the class's config name
if (SuperClassDef && ClassDef.GetClassConfigName() != NAME_None && ClassDef.GetClassConfigName() != SuperClassDef->GetClassConfigName())
{
Boilerplate.Logf(TEXT("\tstatic const TCHAR* StaticConfigName() {return TEXT(\"%s\");}\r\n\r\n"), *ClassDef.GetClassConfigName().ToString());
}
// export implementation of _getUObject for classes that implement interfaces
for (FUnrealStructDefinitionInfo::FBaseStructInfo& BaseStruct : ClassDef.GetBaseStructInfos())
{
if (FUnrealClassDefinitionInfo* BaseClass = UHTCast<FUnrealClassDefinitionInfo>(BaseStruct.Struct); BaseClass != nullptr && BaseClass->IsInterface())
{
Boilerplate.Logf(TEXT("\tvirtual UObject* _getUObject() const override { return const_cast<%s*>(this); }\r\n"), *ClassCPPName);
break;
}
}
if (ClassHasReplicatedProperties(ClassDef))
{
WriteReplicatedMacroData(*ClassCPPName, *APIArg, ClassDef, Boilerplate, SourceFile, OutFlags);
}
{
FString NoPureDeclsMacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine(), TEXT("_INCLASS_NO_PURE_DECLS"));
WriteMacro(OutGeneratedHeaderText, NoPureDeclsMacroName, Boilerplate);
ClassNoPureDeclsMacroCalls.Logf(TEXT("\t%s\r\n"), *NoPureDeclsMacroName);
FString MacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine(), TEXT("_INCLASS"));
WriteMacro(OutGeneratedHeaderText, MacroName, Boilerplate);
ClassMacroCalls.Logf(TEXT("\t%s\r\n"), *MacroName);
ExportConstructorsMacros(OutGeneratedHeaderText, OutCpp, StandardUObjectConstructorsMacroCall, EnhancedUObjectConstructorsMacroCall, SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine()), ClassDef, *APIArg);
ExportFieldNotify(OutGeneratedHeaderText, OutCpp, StandardUObjectConstructorsMacroCall, EnhancedUObjectConstructorsMacroCall, SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine()), ClassDef);
}
}
}
{
FString MacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetPrologLine(), TEXT("_PROLOG"));
WriteMacro(OutGeneratedHeaderText, MacroName, PrologMacroCalls);
}
{
const TCHAR* Public = TEXT("public:" LINE_TERMINATOR_ANSI);
const bool bIsIInterface = ClassDef.HasAnyClassFlags(CLASS_Interface);
const TCHAR* MacroName;
FString DeprecationWarning;
FString LegacyGeneratedBody;
FString GeneratedBody;
int32 GeneratedBodyLine;
if (bIsIInterface)
{
MacroName = TEXT("GENERATED_IINTERFACE_BODY()");
GeneratedBodyLine = ClassDef.GetInterfaceGeneratedBodyLine();
LegacyGeneratedBody = ClassMacroCalls;
GeneratedBody = ClassNoPureDeclsMacroCalls;
}
else
{
MacroName = TEXT("GENERATED_UCLASS_BODY()");
DeprecationWarning = GetGeneratedMacroDeprecationWarning(MacroName);
GeneratedBodyLine = ClassDef.GetGeneratedBodyLine();
LegacyGeneratedBody = FString::Printf(TEXT("%s%s"), *ClassMacroCalls, *StandardUObjectConstructorsMacroCall);
GeneratedBody = FString::Printf(TEXT("%s%s"), *ClassNoPureDeclsMacroCalls, *EnhancedUObjectConstructorsMacroCall);
}
FString WrappedLegacyGeneratedBody = FString::Printf(TEXT("%s%s%s%s%s%s"), *DeprecationWarning, DisableDeprecationWarnings, Public, *LegacyGeneratedBody, Public, EnableDeprecationWarnings);
FString WrappedGeneratedBody = FString::Printf(TEXT("%s%s%s%s%s"), DisableDeprecationWarnings, Public, *GeneratedBody, *GetPreservedAccessSpecifierString(ClassDef), EnableDeprecationWarnings);
OutGeneratedHeaderText.Log(Macroize(*SourceFile.GetGeneratedBodyMacroName(GeneratedBodyLine, true), MoveTemp(WrappedLegacyGeneratedBody)));
OutGeneratedHeaderText.Log(Macroize(*SourceFile.GetGeneratedBodyMacroName(GeneratedBodyLine, false), MoveTemp(WrappedGeneratedBody)));
}
// Forward declare the StaticClass specialisation in the header
OutGeneratedHeaderText.Logf(TEXT("template<> %sUClass* StaticClass<class %s>();\r\n\r\n"), *GetAPIString(), *ClassCPPName);
// If there is a serialization function implementation for the CPP file, add it now
if (GeneratedSerializeFunctionCPP.Len())
{
OutCpp.Log(GeneratedSerializeFunctionCPP);
}
}
/**
* Generates private copy-constructor declaration.
*
* @param Out Output device to generate to.
* @param Class Class to generate constructor for.
* @param API API string for this constructor.
*/
void ExportCopyConstructorDefinition(FOutputDevice& Out, const TCHAR* API, const TCHAR* ClassCPPName)
{
Out.Logf(TEXT("private:\r\n"));
Out.Logf(TEXT("\t/** Private move- and copy-constructors, should never be used */\r\n"));
Out.Logf(TEXT("\t%s_API %s(%s&&);\r\n"), API, ClassCPPName, ClassCPPName);
Out.Logf(TEXT("\t%s_API %s(const %s&);\r\n"), API, ClassCPPName, ClassCPPName);
Out.Logf(TEXT("public:\r\n"));
}
/**
* Generates vtable helper caller and eventual constructor body.
*
* @param Out Output device to generate to.
* @param Class Class to generate for.
* @param API API string.
*/
void ExportVTableHelperCtorAndCaller(FOutputDevice& Out, FUnrealClassDefinitionInfo& ClassDef, const TCHAR* API, const TCHAR* ClassCPPName)
{
if (!ClassDef.IsCustomVTableHelperConstructorDeclared())
{
Out.Logf(TEXT("\tDECLARE_VTABLE_PTR_HELPER_CTOR(%s_API, %s);" LINE_TERMINATOR_ANSI), API, ClassCPPName);
}
Out.Logf(TEXT("\tDEFINE_VTABLE_PTR_HELPER_CTOR_CALLER(%s);" LINE_TERMINATOR_ANSI), ClassCPPName);
}
/**
* Generates standard constructor declaration.
*
* @param Out Output device to generate to.
* @param Class Class to generate constructor for.
* @param API API string for this constructor.
*/
void ExportStandardConstructorsMacro(FOutputDevice& Out, FUnrealClassDefinitionInfo& ClassDef, const TCHAR* API, const TCHAR* ClassCPPName)
{
if (!ClassDef.HasCustomConstructor())
{
Out.Logf(TEXT("\t/** Standard constructor, called after all reflected properties have been initialized */\r\n"));
Out.Logf(TEXT("\t%s_API %s(const FObjectInitializer& ObjectInitializer%s);\r\n"), API, ClassCPPName,
ClassDef.IsDefaultConstructorDeclared() ? TEXT("") : TEXT(" = FObjectInitializer::Get()"));
}
if (ClassDef.HasAnyClassFlags(CLASS_Abstract))
{
Out.Logf(TEXT("\tDEFINE_ABSTRACT_DEFAULT_OBJECT_INITIALIZER_CONSTRUCTOR_CALL(%s)\r\n"), ClassCPPName);
}
else
{
Out.Logf(TEXT("\tDEFINE_DEFAULT_OBJECT_INITIALIZER_CONSTRUCTOR_CALL(%s)\r\n"), ClassCPPName);
}
ExportVTableHelperCtorAndCaller(Out, ClassDef, API, ClassCPPName);
ExportCopyConstructorDefinition(Out, API, ClassCPPName);
}
/**
* Generates constructor definition.
*
* @param Out Output device to generate to.
* @param Class Class to generate constructor for.
* @param API API string for this constructor.
*/
void ExportConstructorDefinition(FOutputDevice& Out, FUnrealClassDefinitionInfo& ClassDef, const TCHAR* API, const TCHAR* ClassCPPName)
{
if (!ClassDef.IsConstructorDeclared())
{
Out.Logf(TEXT("\t/** Standard constructor, called after all reflected properties have been initialized */\r\n"));
// Assume super class has OI constructor, this may not always be true but we should always be able to check this.
// In any case, it will default to old behaviour before we even checked this.
bool bSuperClassObjectInitializerConstructorDeclared = true;
FUnrealClassDefinitionInfo* SuperClassDef = ClassDef.GetSuperClass();
if (SuperClassDef != nullptr)
{
if (SuperClassDef->HasSource() && !SuperClassDef->GetUnrealSourceFile().IsNoExportTypes()) // Don't consider the internal types generated from the engine
{
// Since we are dependent on our SuperClass having determined which constructors are defined,
// if it is not yet determined we will need to wait on it becoming available.
// Since the SourceFile array provided to the ParallelFor is in dependency order and does not allow cyclic dependencies,
// we can be certain that another thread has started processing the file containing our SuperClass before this
// file would have been assigned out, so we just have to wait
while (!SuperClassDef->IsConstructorDeclared())
{
FPlatformProcess::Sleep(0.01);
}
bSuperClassObjectInitializerConstructorDeclared = SuperClassDef->IsObjectInitializerConstructorDeclared();
}
}
if (bSuperClassObjectInitializerConstructorDeclared)
{
Out.Logf(TEXT("\t%s_API %s(const FObjectInitializer& ObjectInitializer = FObjectInitializer::Get()) : Super(ObjectInitializer) { };\r\n"), API, ClassCPPName);
ClassDef.MarkObjectInitializerConstructorDeclared();
}
else
{
Out.Logf(TEXT("\t%s_API %s() { };\r\n"), API, ClassCPPName);
ClassDef.MarkDefaultConstructorDeclared();
}
ClassDef.MarkConstructorDeclared();
}
ExportCopyConstructorDefinition(Out, API, ClassCPPName);
}
/**
* Generates constructor call definition.
*
* @param Out Output device to generate to.
* @param Class Class to generate constructor call definition for.
*/
void ExportDefaultConstructorCallDefinition(FOutputDevice& Out, FUnrealClassDefinitionInfo& ClassDef, const TCHAR* ClassCPPName)
{
if (ClassDef.IsObjectInitializerConstructorDeclared())
{
if (ClassDef.HasAnyClassFlags(CLASS_Abstract))
{
Out.Logf(TEXT("\tDEFINE_ABSTRACT_DEFAULT_OBJECT_INITIALIZER_CONSTRUCTOR_CALL(%s)\r\n"), ClassCPPName);
}
else
{
Out.Logf(TEXT("\tDEFINE_DEFAULT_OBJECT_INITIALIZER_CONSTRUCTOR_CALL(%s)\r\n"), ClassCPPName);
}
}
else if (ClassDef.IsDefaultConstructorDeclared())
{
if (ClassDef.HasAnyClassFlags(CLASS_Abstract))
{
Out.Logf(TEXT("\tDEFINE_ABSTRACT_DEFAULT_CONSTRUCTOR_CALL(%s)\r\n"), ClassCPPName);
}
else
{
Out.Logf(TEXT("\tDEFINE_DEFAULT_CONSTRUCTOR_CALL(%s)\r\n"), ClassCPPName);
}
}
else
{
Out.Logf(TEXT("\tDEFINE_FORBIDDEN_DEFAULT_CONSTRUCTOR_CALL(%s)\r\n"), ClassCPPName);
}
}
/**
* Generates enhanced constructor declaration.
*
* @param Out Output device to generate to.
* @param Class Class to generate constructor for.
* @param API API string for this constructor.
*/
void ExportEnhancedConstructorsMacro(FOutputDevice& Out, FUnrealClassDefinitionInfo& ClassDef, const TCHAR* API, const TCHAR* ClassCPPName)
{
ExportConstructorDefinition(Out, ClassDef, API, ClassCPPName);
ExportVTableHelperCtorAndCaller(Out, ClassDef, API, ClassCPPName);
ExportDefaultConstructorCallDefinition(Out, ClassDef, ClassCPPName);
}
/**
* Gets a package relative inclusion path of the given source file for build.
*
* @param SourceFile Given source file.
*
* @returns Inclusion path.
*/
FString GetBuildPath(const FUnrealSourceFile& SourceFile)
{
FString Out = SourceFile.GetFilename();
ConvertToBuildIncludePath(SourceFile.GetPackageDef().GetModule(), Out);
return Out;
}
void FNativeClassHeaderGenerator::ExportConstructorsMacros(FOutputDevice& OutGeneratedHeaderText, FOutputDevice& Out, FOutputDevice& StandardUObjectConstructorsMacroCall, FOutputDevice& EnhancedUObjectConstructorsMacroCall, const FString& ConstructorsMacroPrefix, FUnrealClassDefinitionInfo& ClassDef, const TCHAR* APIArg)
{
const FString ClassCPPName = ClassDef.GetAlternateNameCPP();
FUHTStringBuilder StdMacro;
FUHTStringBuilder EnhMacro;
FString StdMacroName = ConstructorsMacroPrefix + TEXT("_STANDARD_CONSTRUCTORS");
FString EnhMacroName = ConstructorsMacroPrefix + TEXT("_ENHANCED_CONSTRUCTORS");
ExportStandardConstructorsMacro(StdMacro, ClassDef, APIArg, *ClassCPPName);
ExportEnhancedConstructorsMacro(EnhMacro, ClassDef, APIArg, *ClassCPPName);
if (!ClassDef.IsCustomVTableHelperConstructorDeclared())
{
Out.Logf(TEXT("\tDEFINE_VTABLE_PTR_HELPER_CTOR(%s);" LINE_TERMINATOR_ANSI), *ClassCPPName);
}
OutGeneratedHeaderText.Log(Macroize(*StdMacroName, *StdMacro));
OutGeneratedHeaderText.Log(Macroize(*EnhMacroName, *EnhMacro));
StandardUObjectConstructorsMacroCall.Logf(TEXT("\t%s\r\n"), *StdMacroName);
EnhancedUObjectConstructorsMacroCall.Logf(TEXT("\t%s\r\n"), *EnhMacroName);
}
bool FNativeClassHeaderGenerator::WriteHeader(FGeneratedFileInfo& FileInfo, const FString& InBodyText, const TSet<FString>& InAdditionalHeaders, const TSet<FString>& ForwardDeclarations)
{
FUHTStringBuilder GeneratedHeaderTextWithCopyright;
GeneratedHeaderTextWithCopyright.Log(HeaderCopyright);
GeneratedHeaderTextWithCopyright.Log(TEXT("#include \"UObject/ObjectMacros.h\"\r\n"));
GeneratedHeaderTextWithCopyright.Log(TEXT("#include \"UObject/ScriptMacros.h\"\r\n"));
for (const FString& AdditionalHeader : InAdditionalHeaders)
{
GeneratedHeaderTextWithCopyright.Logf(TEXT("#include \"%s\"\r\n"), *AdditionalHeader);
}
GeneratedHeaderTextWithCopyright.Log(LINE_TERMINATOR);
GeneratedHeaderTextWithCopyright.Log(DisableDeprecationWarnings);
if (ForwardDeclarations.Num() > 0)
{
TArray<const FString*> Sorted;
Sorted.Reserve(ForwardDeclarations.Num());
for (const FString& Ref : ForwardDeclarations)
{
if (Ref.Len() > 0)
{
Sorted.Add(&Ref);
}
}
Sorted.Sort();
for (const FString* Ref : Sorted)
{
GeneratedHeaderTextWithCopyright.Logf(TEXT("%s\r\n"), **Ref);
}
}
GeneratedHeaderTextWithCopyright.Log(InBodyText);
GeneratedHeaderTextWithCopyright.Log(EnableDeprecationWarnings);
const bool bHasChanged = SaveHeaderIfChanged(FileInfo, MoveTemp(GeneratedHeaderTextWithCopyright));
return bHasChanged;
}
/**
* Returns a string in the format CLASS_Something|CLASS_Something which represents all class flags that are set for the specified
* class which need to be exported as part of the DECLARE_CLASS macro
*/
FString FNativeClassHeaderGenerator::GetClassFlagExportText(FUnrealClassDefinitionInfo& ClassDef)
{
FString StaticClassFlagText;
if (ClassDef.HasAnyClassFlags(CLASS_Transient) )
{
StaticClassFlagText += TEXT(" | CLASS_Transient");
}
if (ClassDef.HasAnyClassFlags(CLASS_Optional))
{
StaticClassFlagText += TEXT(" | CLASS_Optional");
}
if (ClassDef.HasAnyClassFlags(CLASS_DefaultConfig) )
{
StaticClassFlagText += TEXT(" | CLASS_DefaultConfig");
}
if (ClassDef.HasAnyClassFlags(CLASS_GlobalUserConfig) )
{
StaticClassFlagText += TEXT(" | CLASS_GlobalUserConfig");
}
if (ClassDef.HasAnyClassFlags(CLASS_ProjectUserConfig))
{
StaticClassFlagText += TEXT(" | CLASS_ProjectUserConfig");
}
if (ClassDef.HasAnyClassFlags(CLASS_Config) )
{
StaticClassFlagText += TEXT(" | CLASS_Config");
}
if (ClassDef.HasAnyClassFlags(CLASS_Interface) )
{
StaticClassFlagText += TEXT(" | CLASS_Interface");
}
if (ClassDef.HasAnyClassFlags(CLASS_Deprecated) )
{
StaticClassFlagText += TEXT(" | CLASS_Deprecated");
}
return StaticClassFlagText;
}
/**
* Exports the header text for the list of enums specified
*
* @param Enums the enums to export
*/
void FNativeClassHeaderGenerator::ExportEnum(FOutputDevice& Out, FUnrealEnumDefinitionInfo& EnumDef) const
{
// Export FOREACH macro
Out.Logf( TEXT("#define FOREACH_ENUM_%s(op) "), *EnumDef.GetName().ToUpper() );
bool bHasExistingMax = EnumDef.ContainsExistingMax();
int64 MaxEnumVal = bHasExistingMax ? EnumDef.GetMaxEnumValue() : 0;
for (int32 i = 0; i < EnumDef.NumEnums(); i++)
{
if (bHasExistingMax && EnumDef.GetValueByIndex(i) == MaxEnumVal)
{
continue;
}
const FString QualifiedEnumValue = EnumDef.GetNameByIndex(i).ToString();
Out.Logf( TEXT("\\\r\n\top(%s) "), *QualifiedEnumValue );
}
Out.Logf( TEXT("\r\n") );
if (EnumDef.GetCppForm() == UEnum::ECppForm::EnumClass)
{
FString UnderlyingTypeString;
if (EnumDef.GetUnderlyingType() != EUnderlyingEnumType::Unspecified)
{
UnderlyingTypeString = TEXT(" : ");
switch (EnumDef.GetUnderlyingType())
{
case EUnderlyingEnumType::int8: UnderlyingTypeString += TNameOf<int8>::GetName(); break;
case EUnderlyingEnumType::int16: UnderlyingTypeString += TNameOf<int16>::GetName(); break;
case EUnderlyingEnumType::int32: UnderlyingTypeString += TNameOf<int32>::GetName(); break;
case EUnderlyingEnumType::int64: UnderlyingTypeString += TNameOf<int64>::GetName(); break;
case EUnderlyingEnumType::uint8: UnderlyingTypeString += TNameOf<uint8>::GetName(); break;
case EUnderlyingEnumType::uint16: UnderlyingTypeString += TNameOf<uint16>::GetName(); break;
case EUnderlyingEnumType::uint32: UnderlyingTypeString += TNameOf<uint32>::GetName(); break;
case EUnderlyingEnumType::uint64: UnderlyingTypeString += TNameOf<uint64>::GetName(); break;
default:
check(false);
}
}
Out.Logf( TEXT("\r\n") );
Out.Logf( TEXT("enum class %s%s;\r\n"), *EnumDef.GetCppType(), *UnderlyingTypeString );
// Add TIsUEnumClass typetraits
Out.Logf( TEXT("template<> struct TIsUEnumClass<%s> { enum { Value = true }; };\r\n"), *EnumDef.GetCppType());
// Forward declare the StaticEnum<> specialisation for enum classes
Out.Logf( TEXT("template<> %sUEnum* StaticEnum<%s>();\r\n"), *GetAPIString(), *EnumDef.GetCppType());
Out.Logf( TEXT("\r\n") );
}
}
// Exports the header text for the list of structs specified (GENERATED_BODY impls)
void FNativeClassHeaderGenerator::ExportGeneratedStructBodyMacros(FOutputDevice& OutGeneratedHeaderText, FOutputDevice& Out, FReferenceGatherers& OutReferenceGatherers, const FUnrealSourceFile& SourceFile, FUnrealScriptStructDefinitionInfo& ScriptStructDef, EExportClassOutFlags& OutFlags) const
{
ScriptStructDef.AddCrossModuleReference(OutReferenceGatherers.UniqueCrossModuleReferences, true);
const FString ActualStructName = ScriptStructDef.GetName();
const FString& FriendApiString = GetAPIString();
FUnrealStructDefinitionInfo* BaseStructDef = ScriptStructDef.GetSuperStruct();
const FString StructNameCPP = ScriptStructDef.GetAlternateNameCPP();
const FString& SingletonName = ScriptStructDef.GetSingletonName(true);
const FString& ChoppedSingletonName = ScriptStructDef.GetSingletonNameChopped(true);
const FString RigVMExecuteContextDeclaration = TEXT("FRigVMExtendedExecuteContext& RigVMExecuteContext");
const FString RigVMExecuteContextPublicDeclaration = TEXT("const FRigVMExecuteContext& RigVMExecuteContext");
TArray<FString> RigVMVirtualFuncProlog, RigVMVirtualFuncEpilog, RigVMStubProlog;
// for RigVM methods we need to generated a macro used for implementing the static method
// and prepare two prologs: one for the virtual function implementation, and one for the stub
// invoking the static method.
const FRigVMStructInfo& StructRigVMInfo = ScriptStructDef.GetRigVMInfo();
if(StructRigVMInfo.bHasRigVM)
{
//RigVMStubProlog.Add(FString::Printf(TEXT("ensure(RigVMOperandMemory.Num() == %d);"), StructRigVMInfo->Members.Num()));
int32 OperandIndex = 0;
for (int32 ParameterIndex = 0; ParameterIndex < StructRigVMInfo.Members.Num(); ParameterIndex++)
{
const FRigVMParameter& Parameter = StructRigVMInfo.Members[ParameterIndex];
if(Parameter.RequiresCast())
{
RigVMVirtualFuncProlog.Add(FString::Printf(TEXT("%s %s(%s);"), *Parameter.CastType, *Parameter.CastName, *Parameter.Name));
}
const FString& ParamTypeOriginal = Parameter.TypeOriginal(true);
const FString& ParamNameOriginal = Parameter.NameOriginal(false);
FString AdditionalParameters;
if(!Parameter.bInput && !Parameter.bOutput && !Parameter.bSingleton)
{
static const FString SliceContextParameter = TEXT(", RigVMExecuteContext.GetSlice().GetIndex()");
AdditionalParameters = SliceContextParameter;
}
if (Parameter.IsArray())
{
FString ExtendedType = Parameter.ExtendedType();
RigVMStubProlog.Add(FString::Printf(TEXT("TArray%s& %s = *(TArray%s*)RigVMMemoryHandles[%d].GetData(false%s);"),
*ExtendedType,
*ParamNameOriginal,
*ExtendedType,
OperandIndex,
*AdditionalParameters));
OperandIndex++;
}
else
{
FString VariableType = Parameter.TypeVariableRef(true);
FString ExtractedType = Parameter.TypeOriginal();
FString ParameterCast = FString::Printf(TEXT("*(%s*)"), *ExtractedType);
RigVMStubProlog.Add(FString::Printf(TEXT("%s %s = %sRigVMMemoryHandles[%d].GetData(false%s);"),
*VariableType,
*ParamNameOriginal,
*ParameterCast,
OperandIndex,
*AdditionalParameters));
OperandIndex++;
}
}
FString StructMembers = StructRigVMInfo.Members.Declarations(false, TEXT(", \\\r\n\t\t"), true, false);
OutGeneratedHeaderText.Log(TEXT("\r\n"));
for (const FRigVMMethodInfo& MethodInfo : StructRigVMInfo.Methods)
{
FString ParameterSuffix = MethodInfo.Parameters.Declarations(true, TEXT(", \\\r\n\t\t"));
FString RigVMParameterPrefix2 = RigVMExecuteContextPublicDeclaration + FString((StructMembers.IsEmpty() && ParameterSuffix.IsEmpty()) ? TEXT("") : TEXT(", \\\r\n\t\t"));
OutGeneratedHeaderText.Logf(TEXT("#define %s_%s() \\\r\n"), *StructNameCPP, *MethodInfo.Name);
OutGeneratedHeaderText.Logf(TEXT("\t%s %s::Static%s( \\\r\n\t\t%s%s%s \\\r\n\t)\r\n"), *MethodInfo.ReturnType, *StructNameCPP, *MethodInfo.Name, *RigVMParameterPrefix2, *StructMembers, *ParameterSuffix);
}
OutGeneratedHeaderText.Log(TEXT("\r\n"));
}
// Export struct.
if (ScriptStructDef.HasAnyStructFlags(STRUCT_Native))
{
check(ScriptStructDef.GetMacroDeclaredLineNumber() != INDEX_NONE);
const bool bRequiredAPI = !ScriptStructDef.HasAnyStructFlags(STRUCT_RequiredAPI);
const FString FriendLine = FString::Printf(TEXT("\tfriend struct %s_Statics;\r\n"), *ChoppedSingletonName);
const FString StaticClassLine = FString::Printf(TEXT("\t%sstatic class UScriptStruct* StaticStruct();\r\n"), (bRequiredAPI ? *FriendApiString : TEXT("")));
// if we have RigVM methods on this struct we need to
// declare the static method as well as the stub method
FString RigVMMethodsDeclarations;
if (StructRigVMInfo.bHasRigVM)
{
FString StructMembers = StructRigVMInfo.Members.Declarations(false, TEXT(",\r\n\t\t"), true, false);
for (const FRigVMMethodInfo& MethodInfo : StructRigVMInfo.Methods)
{
FString StructMembersForStub = StructRigVMInfo.Members.Names(false, TEXT(",\r\n\t\t\t"), false);
FString ParameterSuffix = MethodInfo.Parameters.Declarations(true, TEXT(",\r\n\t\t"));
FString ParameterNamesSuffix = MethodInfo.Parameters.Names(true, TEXT(",\r\n\t\t\t"));
FString RigVMParameterPrefix2 = RigVMExecuteContextPublicDeclaration + FString((StructMembers.IsEmpty() && ParameterSuffix.IsEmpty()) ? TEXT("") : TEXT(",\r\n\t\t"));
FString RigVMParameterPrefix4 = FString(TEXT("RigVMExecuteContext.PublicData")) + FString((StructMembersForStub.IsEmpty() && ParameterSuffix.IsEmpty()) ? TEXT("") : TEXT(",\r\n\t\t\t"));
RigVMMethodsDeclarations += FString::Printf(TEXT("\tstatic %s Static%s(\r\n\t\t%s%s%s\r\n\t);\r\n"), *MethodInfo.ReturnType, *MethodInfo.Name, *RigVMParameterPrefix2, *StructMembers, *ParameterSuffix);
RigVMMethodsDeclarations += FString::Printf(TEXT("\tFORCEINLINE_DEBUGGABLE static %s RigVM%s(\r\n\t\t%s,\r\n\t\tFRigVMMemoryHandleArray RigVMMemoryHandles\r\n\t)\r\n"), *MethodInfo.ReturnType, *MethodInfo.Name, *RigVMExecuteContextDeclaration);
RigVMMethodsDeclarations += FString::Printf(TEXT("\t{\r\n"));
// implement inline stub method body
if (MethodInfo.Parameters.Num() > 0)
{
//RigVMMethodsDeclarations += FString::Printf(TEXT("\t\tensure(RigVMUserData.Num() == %d);\r\n"), MethodInfo.Parameters.Num());
for (int32 ParameterIndex = 0; ParameterIndex < MethodInfo.Parameters.Num(); ParameterIndex++)
{
const FRigVMParameter& Parameter = MethodInfo.Parameters[ParameterIndex];
RigVMMethodsDeclarations += FString::Printf(TEXT("\t\t%s = *(%s*)RigVMExecuteContext.OpaqueArguments[%d];\r\n"), *Parameter.Declaration(), *Parameter.TypeNoRef(), ParameterIndex);
}
RigVMMethodsDeclarations += FString::Printf(TEXT("\t\t\r\n"));
}
if (RigVMStubProlog.Num() > 0)
{
for (const FString& RigVMStubPrologLine : RigVMStubProlog)
{
RigVMMethodsDeclarations += FString::Printf(TEXT("\t\t%s\r\n"), *RigVMStubPrologLine);
}
RigVMMethodsDeclarations += FString::Printf(TEXT("\t\t\r\n"));
}
RigVMMethodsDeclarations += FString::Printf(TEXT("\t\t%sStatic%s(\r\n\t\t\t%s%s%s\r\n\t\t);\r\n"), *MethodInfo.ReturnPrefix(), *MethodInfo.Name, *RigVMParameterPrefix4, *StructMembersForStub, *ParameterNamesSuffix);
RigVMMethodsDeclarations += FString::Printf(TEXT("\t}\r\n"));
}
}
// Check to see if we are a FastArraySerializer and should try to deduce the FastArraySerializerItemType
// To fulfill that requirement the struct should be derived from FFastArraySerializer and have a single replicated TArrayProperty
bool bGenerateFastArraySerializerTypeDefinition = false;
FString FastArraySerializerTypeDefinition;
{
const FUnrealStructDefinitionInfo* FastArraySerializerStructDef = GTypeDefinitionInfoMap.FindByName<FUnrealStructDefinitionInfo>(TEXT("FastArraySerializer"));
if (FastArraySerializerStructDef && BaseStructDef && BaseStructDef->IsChildOf(*FastArraySerializerStructDef))
{
uint32 ReplicatedPropertyCount = 0U;
const FUnrealPropertyDefinitionInfo* PotentialItemArrayPropertyDefinition = nullptr;
// Only output bindings for FastArraySerializers that have a single replicated dynamic array
for (const TSharedRef<FUnrealPropertyDefinitionInfo>& Property : ScriptStructDef.GetProperties())
{
if (!EnumHasAnyFlags(Property->GetPropertyFlags(), EPropertyFlags::CPF_RepSkip) && Property->IsDynamicArray())
{
PotentialItemArrayPropertyDefinition = &Property.Get();
++ReplicatedPropertyCount;
}
}
if (ReplicatedPropertyCount == 1)
{
FastArraySerializerTypeDefinition = FString::Printf(TEXT("\tUE_NET_DECLARE_FASTARRAY(%s, %s, %s);\r\n"), *StructNameCPP, *(PotentialItemArrayPropertyDefinition->GetName()), (bRequiredAPI ? *GetAPIString() : TEXT("")));
bGenerateFastArraySerializerTypeDefinition = true;
}
}
}
const FString SuperTypedef = BaseStructDef ? FString::Printf(TEXT("\ttypedef %s Super;\r\n"), *BaseStructDef->GetAlternateNameCPP()) : FString();
FString CombinedLine = FString::Printf(TEXT("%s%s%s%s%s"), *FriendLine, *StaticClassLine, *RigVMMethodsDeclarations, *SuperTypedef, *FastArraySerializerTypeDefinition);
const FString MacroName = SourceFile.GetGeneratedBodyMacroName(ScriptStructDef.GetMacroDeclaredLineNumber());
const FString Macroized = Macroize(*MacroName, MoveTemp(CombinedLine));
OutGeneratedHeaderText.Log(Macroized);
// Inject static assert to verify that we do not add vtable
if (BaseStructDef)
{
FString BaseStructNameCPP = BaseStructDef->GetAlternateNameCPP();
FString VerifyPolymorphicStructString = FString::Printf(TEXT("\r\nstatic_assert(std::is_polymorphic<%s>() == std::is_polymorphic<%s>(), \"USTRUCT %s cannot be polymorphic unless super %s is polymorphic\");\r\n\r\n"), *StructNameCPP, *BaseStructNameCPP, *StructNameCPP, *BaseStructNameCPP);
Out.Log(VerifyPolymorphicStructString);
}
FString GetHashName = FString::Printf(TEXT("Get_%s_Hash"), *ChoppedSingletonName);
Out.Logf(TEXT("\tstatic FStructRegistrationInfo Z_Registration_Info_UScriptStruct_%s;\r\n"), *ScriptStructDef.GetName());
Out.Logf(TEXT("class UScriptStruct* %s::StaticStruct()\r\n"), *StructNameCPP);
Out.Logf(TEXT("{\r\n"));
// UStructs can have UClass or UPackage outer (if declared in non-UClass headers).
const FString& OuterName (GetPackageSingletonName(UHTCastChecked<FUnrealPackageDefinitionInfo>(ScriptStructDef.GetOuter()), OutReferenceGatherers.UniqueCrossModuleReferences));
FString OuterSingletonName = FString::Printf(TEXT("Z_Registration_Info_UScriptStruct_%s.OuterSingleton"), *ScriptStructDef.GetName());
Out.Logf(TEXT("\tif (!%s)\r\n"), *OuterSingletonName);
Out.Logf(TEXT("\t{\r\n"));
Out.Logf(TEXT("\t\t%s = GetStaticStruct(%s, %s, TEXT(\"%s\"));\r\n"),
*OuterSingletonName, *ChoppedSingletonName, *OuterName, *ActualStructName);
// if this struct has RigVM methods - we need to register the method to our central
// registry on construction of the static struct
if (StructRigVMInfo.bHasRigVM)
{
for (const FRigVMMethodInfo& MethodInfo : StructRigVMInfo.Methods)
{
const FString ArgumentsName = FString::Printf(TEXT("Arguments_%s_%s"), *StructNameCPP, *MethodInfo.Name);
Out.Logf(TEXT("\t\tTArray<FRigVMFunctionArgument> %s;\r\n"), *ArgumentsName);
for (int32 MemberIndex = 0; MemberIndex < StructRigVMInfo.Members.Num(); MemberIndex++)
{
const FRigVMParameter& Parameter = StructRigVMInfo.Members[MemberIndex];
Out.Logf(TEXT("\t\t%s.Emplace(TEXT(\"%s\"), TEXT(\"%s\"));\r\n"), *ArgumentsName, *Parameter.NameOriginal(), *Parameter.TypeOriginal());
}
for (int32 ParameterIndex = 0; ParameterIndex < MethodInfo.Parameters.Num(); ParameterIndex++)
{
const FRigVMParameter& Parameter = MethodInfo.Parameters[ParameterIndex];
Out.Logf(TEXT("\t\t%s.Emplace(TEXT(\"%s\"), TEXT(\"%s\"));\r\n"), *ArgumentsName, *Parameter.NameOriginal(), *Parameter.TypeOriginal());
}
Out.Logf(TEXT("\t\tFRigVMRegistry::Get().Register(TEXT(\"%s::%s\"), &%s::RigVM%s, %s, %s);\r\n"),
*StructNameCPP, *MethodInfo.Name, *StructNameCPP, *MethodInfo.Name, *OuterSingletonName, *ArgumentsName);
}
}
Out.Logf(TEXT("\t}\r\n"));
Out.Logf(TEXT("\treturn %s;\r\n"), *OuterSingletonName);
Out.Logf(TEXT("}\r\n"));
// Forward declare the StaticStruct specialization in the header
OutGeneratedHeaderText.Logf(TEXT("template<> %sUScriptStruct* StaticStruct<struct %s>();\r\n\r\n"), *GetAPIString(), *StructNameCPP);
// Generate the StaticStruct specialization
Out.Logf(TEXT("template<> %sUScriptStruct* StaticStruct<%s>()\r\n"), *GetAPIString(), *StructNameCPP);
Out.Logf(TEXT("{\r\n"));
Out.Logf(TEXT("\treturn %s::StaticStruct();\r\n"), *StructNameCPP);
Out.Logf(TEXT("}\r\n"));
// Inject implementation needed to support auto bindings of fast arrays
if (bGenerateFastArraySerializerTypeDefinition)
{
OutFlags |= EExportClassOutFlags::NeedsFastArrayHeaders;
Out.Logf(TEXT("UE_NET_IMPLEMENT_FASTARRAY(%s);\r\n"), *StructNameCPP);
}
}
FString StaticsStructName = ChoppedSingletonName + TEXT("_Statics");
FUHTStringBuilder GeneratedStructRegisterFunctionText;
FUHTStringBuilder StaticDefinitions;
GeneratedStructRegisterFunctionText.Logf(TEXT("\tstruct %s\r\n"), *StaticsStructName);
GeneratedStructRegisterFunctionText.Logf(TEXT("\t{\r\n"));
// if this is a no export struct, we will put a local struct here for offset determination
TArray<FUnrealScriptStructDefinitionInfo*> NoExportStructs = FindNoExportStructs(&ScriptStructDef);
for (FUnrealScriptStructDefinitionInfo* NoExportStructDef : NoExportStructs)
{
ExportMirrorsForNoexportStruct(GeneratedStructRegisterFunctionText, *NoExportStructDef, /*Indent=*/ 2);
}
if (BaseStructDef)
{
UHTCastChecked<FUnrealScriptStructDefinitionInfo>(BaseStructDef); // this better actually be a script struct
BaseStructDef->AddCrossModuleReference(OutReferenceGatherers.UniqueCrossModuleReferences, true);
}
EStructFlags UncomputedFlags = (EStructFlags)(ScriptStructDef.GetStructFlags() & ~STRUCT_ComputedFlags);
FString OuterFunc = GetPackageSingletonNameFuncAddr(UHTCastChecked<FUnrealPackageDefinitionInfo>(ScriptStructDef.GetOuter()), OutReferenceGatherers.UniqueCrossModuleReferences);
FString MetaDataParams = OutputMetaDataCodeForObject(GeneratedStructRegisterFunctionText, StaticDefinitions, ScriptStructDef, *FString::Printf(TEXT("%s::Struct_MetaDataParams"), *StaticsStructName), TEXT("\t\t"), TEXT("\t"));
FString NewStructOps;
if (ScriptStructDef.HasAnyStructFlags(STRUCT_Native))
{
GeneratedStructRegisterFunctionText.Log(TEXT("\t\tstatic void* NewStructOps();\r\n"));
StaticDefinitions.Logf(TEXT("\tvoid* %s::NewStructOps()\r\n"), *StaticsStructName);
StaticDefinitions.Log (TEXT("\t{\r\n"));
StaticDefinitions.Logf(TEXT("\t\treturn (UScriptStruct::ICppStructOps*)new UScriptStruct::TCppStructOps<%s>();\r\n"), *StructNameCPP);
StaticDefinitions.Log (TEXT("\t}\r\n"));
NewStructOps = TEXT("&NewStructOps");
}
else
{
NewStructOps = TEXT("nullptr");
}
TTuple<FString, FString> PropertyRange = OutputProperties(GeneratedStructRegisterFunctionText, StaticDefinitions, OutReferenceGatherers, *FString::Printf(TEXT("%s::"), *StaticsStructName), ScriptStructDef, TEXT("\t\t"), TEXT("\t"));
GeneratedStructRegisterFunctionText.Log (TEXT("\t\tstatic const UECodeGen_Private::FStructParams ReturnStructParams;\r\n"));
StaticDefinitions.Logf(TEXT("\tconst UECodeGen_Private::FStructParams %s::ReturnStructParams = {\r\n"), *StaticsStructName);
StaticDefinitions.Logf(TEXT("\t\t(UObject* (*)())%s,\r\n"), *OuterFunc);
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), *GetSingletonNameFuncAddr(BaseStructDef, OutReferenceGatherers.UniqueCrossModuleReferences));
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), *NewStructOps);
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), *CreateUTF8LiteralString(ActualStructName));
StaticDefinitions.Logf(TEXT("\t\tsizeof(%s),\r\n"), *StructNameCPP);
StaticDefinitions.Logf(TEXT("\t\talignof(%s),\r\n"), *StructNameCPP);
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), *PropertyRange.Get<0>());
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), *PropertyRange.Get<1>());
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), TEXT("RF_Public|RF_Transient|RF_MarkAsNative"));
StaticDefinitions.Logf(TEXT("\t\tEStructFlags(0x%08X),\r\n"), (uint32)UncomputedFlags);
StaticDefinitions.Logf(TEXT("\t\t%s\r\n"), *MetaDataParams);
StaticDefinitions.Log (TEXT("\t};\r\n"));
GeneratedStructRegisterFunctionText.Log (TEXT("\t};\r\n"));
GeneratedStructRegisterFunctionText.Log(StaticDefinitions);
GeneratedStructRegisterFunctionText.Logf(TEXT("\tUScriptStruct* %s\r\n"), *SingletonName);
GeneratedStructRegisterFunctionText.Log (TEXT("\t{\r\n"));
FString NoExportStructNameCPP;
if (NoExportStructs.Contains(&ScriptStructDef))
{
NoExportStructNameCPP = FString::Printf(TEXT("%s::%s"), *StaticsStructName, *StructNameCPP);
}
else
{
NoExportStructNameCPP = StructNameCPP;
}
FString HashFuncName = FString::Printf(TEXT("Get_%s_Hash"), *SingletonName.Replace(TEXT("()"), TEXT(""), ESearchCase::CaseSensitive));
// Structs can either have a UClass or UPackage as outer (if declared in non-UClass header).
FString InnerSingletonName;
if (ScriptStructDef.HasAnyStructFlags(STRUCT_Native))
{
InnerSingletonName = FString::Printf(TEXT("Z_Registration_Info_UScriptStruct_%s.InnerSingleton"), *ScriptStructDef.GetName());
}
else
{
GeneratedStructRegisterFunctionText.Logf(TEXT("\t\tstatic UScriptStruct* ReturnStruct = nullptr;\r\n"));
InnerSingletonName = TEXT("ReturnStruct");
}
GeneratedStructRegisterFunctionText.Logf(TEXT("\t\tif (!%s)\r\n"), *InnerSingletonName);
GeneratedStructRegisterFunctionText.Log (TEXT("\t\t{\r\n"));
GeneratedStructRegisterFunctionText.Logf(TEXT("\t\t\tUECodeGen_Private::ConstructUScriptStruct(%s, %s::ReturnStructParams);\r\n"), *InnerSingletonName, *StaticsStructName);
GeneratedStructRegisterFunctionText.Log (TEXT("\t\t}\r\n"));
GeneratedStructRegisterFunctionText.Logf(TEXT("\t\treturn %s;\r\n"), *InnerSingletonName);
GeneratedStructRegisterFunctionText.Log (TEXT("\t}\r\n"));
uint32 StructHash = GenerateTextHash(*GeneratedStructRegisterFunctionText);
ScriptStructDef.SetHash(StructHash);
Out.Log(GeneratedStructRegisterFunctionText);
// if this struct has RigVM methods we need to implement both the
// virtual function as well as the stub method here.
// The static method is implemented by the user using a macro.
if (StructRigVMInfo.bHasRigVM)
{
FString StructMembersForVirtualFunc = StructRigVMInfo.Members.Names(false, TEXT(",\r\n\t\t"), true);
for (const FRigVMMethodInfo& MethodInfo : StructRigVMInfo.Methods)
{
Out.Log(TEXT("\r\n"));
FString ParameterDeclaration = MethodInfo.Parameters.Declarations(false, TEXT(",\r\n\t\t"));
FString ParameterSuffix = MethodInfo.Parameters.Names(true, TEXT(",\r\n\t\t"));
FString RigVMParameterPrefix3 = FString(TEXT("RigVMExecuteContext")) + FString((StructMembersForVirtualFunc.IsEmpty() && ParameterSuffix.IsEmpty()) ? TEXT("") : TEXT(",\r\n\t\t"));
// implement the virtual function body.
Out.Logf(TEXT("%s %s::%s(%s)\r\n"), *MethodInfo.ReturnType, *StructNameCPP, *MethodInfo.Name, *ParameterDeclaration);
Out.Log(TEXT("{\r\n"));
Out.Log(TEXT("\tFRigVMExecuteContext RigVMExecuteContext;\r\n"));
if(RigVMVirtualFuncProlog.Num() > 0)
{
for (const FString& RigVMVirtualFuncPrologLine : RigVMVirtualFuncProlog)
{
Out.Logf(TEXT("\t%s\r\n"), *RigVMVirtualFuncPrologLine);
}
Out.Log(TEXT("\t\r\n"));
}
Out.Logf(TEXT("\t%sStatic%s(\r\n\t\t%s%s%s\r\n\t);\r\n"), *MethodInfo.ReturnPrefix(), *MethodInfo.Name, *RigVMParameterPrefix3, *StructMembersForVirtualFunc, *ParameterSuffix);
if (RigVMVirtualFuncEpilog.Num() > 0)
{
for (const FString& RigVMVirtualFuncEpilogLine : RigVMVirtualFuncEpilog)
{
Out.Logf(TEXT("\t%s\r\n"), *RigVMVirtualFuncEpilogLine);
}
Out.Log(TEXT("\t\r\n"));
}
Out.Log(TEXT("}\r\n"));
}
Out.Log(TEXT("\r\n"));
}
}
void FNativeClassHeaderGenerator::ExportGeneratedEnumInitCode(FOutputDevice& Out, FReferenceGatherers& OutReferenceGatherers, const FUnrealSourceFile& SourceFile, FUnrealEnumDefinitionInfo& EnumDef) const
{
const FString& SingletonName = EnumDef.GetSingletonNameChopped(true);
const FString EnumNameCpp = EnumDef.GetName(); //UserDefinedEnum should already have a valid cpp name.
const FString StaticsStructName = SingletonName + TEXT("_Statics");
const bool bIsEditorOnlyDataType = EnumDef.IsEditorOnly();
EnumDef.AddCrossModuleReference(OutReferenceGatherers.UniqueCrossModuleReferences, true);
FMacroBlockEmitter EditorOnlyData(Out, TEXT("WITH_EDITORONLY_DATA"));
EditorOnlyData(bIsEditorOnlyDataType);
const FString& PackageSingletonName = GetPackageSingletonName(UHTCastChecked<FUnrealPackageDefinitionInfo>(EnumDef.GetOuter()), OutReferenceGatherers.UniqueCrossModuleReferences);
// If we don't have a zero 0 then we emit a static assert to verify we have one
if (!EnumDef.IsValidEnumValue(0) && EnumDef.HasMetaData(FHeaderParserNames::NAME_BlueprintType))
{
bool bHasUnparsedValue = false;
for (const TPair<FName, int64>& Enum : EnumDef.GetEnums())
{
if (Enum.Value == -1)
{
bHasUnparsedValue = true;
break;
}
}
if (bHasUnparsedValue)
{
Out.Logf(TEXT("\tstatic_assert("));
bool bDoneFirst = false;
for (const TPair<FName, int64>& Enum : EnumDef.GetEnums())
{
if (Enum.Value == -1)
{
if (bDoneFirst)
{
Out.Logf(TEXT("||"));
}
bDoneFirst = true;
Out.Logf(TEXT("!int64(%s)"), *Enum.Key.ToString());
}
}
Out.Logf(TEXT(", \"'%s' does not have a 0 entry!(This is a problem when the enum is initalized by default)\");\r\n"), *EnumDef.GetName());
}
}
Out.Logf(TEXT("\tstatic FEnumRegistrationInfo Z_Registration_Info_UEnum_%s;\r\n"), *EnumNameCpp);
Out.Logf(TEXT("\tstatic UEnum* %s_StaticEnum()\r\n"), *EnumNameCpp);
Out.Logf(TEXT("\t{\r\n"));
Out.Logf(TEXT("\t\tif (!Z_Registration_Info_UEnum_%s.OuterSingleton)\r\n"), *EnumNameCpp);
Out.Logf(TEXT("\t\t{\r\n"));
Out.Logf(TEXT("\t\t\tZ_Registration_Info_UEnum_%s.OuterSingleton = GetStaticEnum(%s, %s, TEXT(\"%s\"));\r\n"), *EnumNameCpp, *SingletonName, *PackageSingletonName, *EnumNameCpp);
Out.Logf(TEXT("\t\t}\r\n"));
Out.Logf(TEXT("\t\treturn Z_Registration_Info_UEnum_%s.OuterSingleton;\r\n"), *EnumNameCpp);
Out.Logf(TEXT("\t}\r\n"));
const FString& EnumSingletonName = EnumDef.GetSingletonName(true);
const FString HashFuncName = FString::Printf(TEXT("Get_%s_Hash"), *SingletonName);
Out.Logf(TEXT("\ttemplate<> %sUEnum* StaticEnum<%s>()\r\n"), *GetAPIString(), *EnumDef.GetCppType());
Out.Logf(TEXT("\t{\r\n"));
Out.Logf(TEXT("\t\treturn %s_StaticEnum();\r\n"), *EnumNameCpp);
Out.Logf(TEXT("\t}\r\n"));
FUHTStringBuilder StaticDefinitions;
FUHTStringBuilder StaticDeclarations;
// Generate the static declarations and definitions
{
// Enums can either have a UClass or UPackage as outer (if declared in non-UClass header).
FString OuterString = PackageSingletonName;
const TCHAR* UEnumObjectFlags = TEXT("RF_Public|RF_Transient|RF_MarkAsNative");
const TCHAR* EnumFlags = EnumDef.HasAnyEnumFlags(EEnumFlags::Flags) ? TEXT("EEnumFlags::Flags") : TEXT("EEnumFlags::None");
const TCHAR* EnumFormStr = TEXT("");
switch (EnumDef.GetCppForm())
{
case UEnum::ECppForm::Regular: EnumFormStr = TEXT("UEnum::ECppForm::Regular"); break;
case UEnum::ECppForm::Namespaced: EnumFormStr = TEXT("UEnum::ECppForm::Namespaced"); break;
case UEnum::ECppForm::EnumClass: EnumFormStr = TEXT("UEnum::ECppForm::EnumClass"); break;
}
const FString& EnumDisplayNameFn = EnumDef.GetMetaData(TEXT("EnumDisplayNameFn"));
StaticDeclarations.Logf(TEXT("\tstruct %s\r\n"), *StaticsStructName);
StaticDeclarations.Logf(TEXT("\t{\r\n"));
StaticDeclarations.Logf(TEXT("\t\tstatic const UECodeGen_Private::FEnumeratorParam Enumerators[];\r\n"));
StaticDefinitions.Logf(TEXT("\tconst UECodeGen_Private::FEnumeratorParam %s::Enumerators[] = {\r\n"), *StaticsStructName);
for (int32 Index = 0; Index != EnumDef.NumEnums(); ++Index)
{
const TCHAR* OverridenNameMetaDatakey = TEXT("OverrideName");
const FString KeyName = EnumDef.HasMetaData(OverridenNameMetaDatakey, Index) ? EnumDef.GetMetaData(OverridenNameMetaDatakey, Index) : EnumDef.GetNameByIndex(Index).ToString();
StaticDefinitions.Logf(TEXT("\t\t{ %s, (int64)%s },\r\n"), *CreateUTF8LiteralString(KeyName), *EnumDef.GetNameByIndex(Index).ToString());
}
StaticDefinitions.Logf(TEXT("\t};\r\n"));
FString MetaDataParamsName = StaticsStructName + TEXT("::Enum_MetaDataParams");
FString MetaDataParams = OutputMetaDataCodeForObject(StaticDeclarations, StaticDefinitions, EnumDef, *MetaDataParamsName, TEXT("\t\t"), TEXT("\t"));
StaticDeclarations.Logf(TEXT("\t\tstatic const UECodeGen_Private::FEnumParams EnumParams;\r\n"));
StaticDefinitions.Logf(TEXT("\tconst UECodeGen_Private::FEnumParams %s::EnumParams = {\r\n"), *StaticsStructName);
StaticDefinitions.Logf(TEXT("\t\t(UObject*(*)())%s,\r\n"), *OuterString.LeftChop(2));
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), EnumDisplayNameFn.IsEmpty() ? TEXT("nullptr") : *EnumDisplayNameFn);
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), *CreateUTF8LiteralString(EnumNameCpp));
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), *CreateUTF8LiteralString(EnumDef.GetCppType()));
StaticDefinitions.Logf(TEXT("\t\t%s::Enumerators,\r\n"), *StaticsStructName);
StaticDefinitions.Logf(TEXT("\t\tUE_ARRAY_COUNT(%s::Enumerators),\r\n"), *StaticsStructName);
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), UEnumObjectFlags);
StaticDefinitions.Logf(TEXT("\t\t%s,\r\n"), EnumFlags);
StaticDefinitions.Logf(TEXT("\t\t(uint8)%s,\r\n"), EnumFormStr);
StaticDefinitions.Logf(TEXT("\t\t%s\r\n"), *MetaDataParams);
StaticDefinitions.Logf(TEXT("\t};\r\n"));
StaticDeclarations.Logf(TEXT("\t};\r\n"));
}
//////////////////////////////////////
FUHTStringBuilder GeneratedEnumRegisterFunctionText;
GeneratedEnumRegisterFunctionText.Log(*StaticDeclarations);
GeneratedEnumRegisterFunctionText.Log(*StaticDefinitions);
GeneratedEnumRegisterFunctionText.Logf(TEXT("\tUEnum* %s\r\n"), *EnumSingletonName);
GeneratedEnumRegisterFunctionText.Logf(TEXT("\t{\r\n"));
// Enums can either have a UClass or UPackage as outer (if declared in non-UClass header).
FString InnerSingletonName = FString::Printf(TEXT("Z_Registration_Info_UEnum_%s.InnerSingleton"), *EnumNameCpp);
GeneratedEnumRegisterFunctionText.Logf(TEXT("\t\tif (!%s)\r\n"), *InnerSingletonName);
GeneratedEnumRegisterFunctionText.Logf(TEXT("\t\t{\r\n"));
GeneratedEnumRegisterFunctionText.Logf(TEXT("\t\t\tUECodeGen_Private::ConstructUEnum(%s, %s::EnumParams);\r\n"), *InnerSingletonName, *StaticsStructName);
GeneratedEnumRegisterFunctionText.Logf(TEXT("\t\t}\r\n"));
GeneratedEnumRegisterFunctionText.Logf(TEXT("\t\treturn %s;\r\n"), *InnerSingletonName);
GeneratedEnumRegisterFunctionText.Logf(TEXT("\t}\r\n"));
uint32 EnumHash = GenerateTextHash(*GeneratedEnumRegisterFunctionText);
EnumDef.SetHash(EnumHash);
Out.Log(GeneratedEnumRegisterFunctionText);
}
void FNativeClassHeaderGenerator::ExportMirrorsForNoexportStruct(FOutputDevice& Out, FUnrealScriptStructDefinitionInfo& ScriptStructDef, int32 TextIndent)
{
// Export struct.
const FString StructName = ScriptStructDef.GetAlternateNameCPP();
Out.Logf(TEXT("%sstruct %s"), FCString::Tab(TextIndent), *StructName);
if (FUnrealStructDefinitionInfo* SuperStructDef = ScriptStructDef.GetSuperStruct())
{
Out.Logf(TEXT(" : public %s"), *SuperStructDef->GetAlternateNameCPP());
}
Out.Logf(TEXT("\r\n%s{\r\n"), FCString::Tab(TextIndent));
// Export the struct's CPP properties.
ExportProperties(Out, ScriptStructDef, TextIndent);
Out.Logf(TEXT("%s};\r\n\r\n"), FCString::Tab(TextIndent));
}
bool FNativeClassHeaderGenerator::WillExportEventParms(FUnrealFunctionDefinitionInfo& FunctionDef)
{
const TArray<TSharedRef<FUnrealPropertyDefinitionInfo>>& Properties = FunctionDef.GetProperties();
return Properties.Num() > 0 && Properties[0]->HasAnyPropertyFlags(CPF_Parm);
}
void WriteEventFunctionPrologue(FOutputDevice& Output, int32 Indent, const FParmsAndReturnProperties& Parameters, FUnrealObjectDefinitionInfo& FunctionOuterDef, const TCHAR* FunctionName)
{
// now the body - first we need to declare a struct which will hold the parameters for the event/delegate call
Output.Logf(TEXT("\r\n%s{\r\n"), FCString::Tab(Indent));
// declare and zero-initialize the parameters and return value, if applicable
if (!Parameters.HasParms())
return;
FString EventStructName = GetEventStructParamsName(FunctionOuterDef, FunctionName);
Output.Logf(TEXT("%s%s Parms;\r\n"), FCString::Tab(Indent + 1), *EventStructName );
// Declare a parameter struct for this event/delegate and assign the struct members using the values passed into the event/delegate call.
for (FUnrealPropertyDefinitionInfo* PropDef : Parameters.Parms)
{
const FString PropertyName = PropDef->GetNameWithDeprecated();
if (PropDef->IsStaticArray())
{
Output.Logf(TEXT("%sFMemory::Memcpy(Parms.%s,%s,sizeof(Parms.%s));\r\n"), FCString::Tab(Indent + 1), *PropertyName, *PropertyName, *PropertyName);
}
else
{
FString ValueAssignmentText = PropertyName;
if (PropDef->IsBooleanOrBooleanStaticArray())
{
ValueAssignmentText += TEXT(" ? true : false");
}
Output.Logf(TEXT("%sParms.%s=%s;\r\n"), FCString::Tab(Indent + 1), *PropertyName, *ValueAssignmentText);
}
}
}
void WriteEventFunctionEpilogue(FOutputDevice& Output, int32 Indent, const FParmsAndReturnProperties& Parameters)
{
// Out parm copying.
for (FUnrealPropertyDefinitionInfo* PropDef : Parameters.Parms)
{
if (PropDef->HasSpecificPropertyFlags(CPF_OutParm | CPF_ConstParm, CPF_OutParm))
{
const FString PropertyName = PropDef->GetNameWithDeprecated();
if (PropDef->IsStaticArray())
{
Output.Logf(TEXT("%sFMemory::Memcpy(&%s,&Parms.%s,sizeof(%s));\r\n"), FCString::Tab(Indent + 1), *PropertyName, *PropertyName, *PropertyName);
}
else
{
Output.Logf(TEXT("%s%s=Parms.%s;\r\n"), FCString::Tab(Indent + 1), *PropertyName, *PropertyName);
}
}
}
// Return value.
if (Parameters.Return)
{
// Make sure uint32 -> bool is supported
bool bBoolProperty = Parameters.Return->IsBooleanOrBooleanStaticArray();
Output.Logf(TEXT("%sreturn %sParms.%s;\r\n"), FCString::Tab(Indent + 1), bBoolProperty ? TEXT("!!") : TEXT(""), *Parameters.Return->GetName());
}
Output.Logf(TEXT("%s}\r\n"), FCString::Tab(Indent));
}
void FNativeClassHeaderGenerator::ExportDelegateDeclaration(FOutputDevice& Out, FReferenceGatherers& OutReferenceGatherers, const FUnrealSourceFile& SourceFile, FUnrealFunctionDefinitionInfo& FunctionDef) const
{
static const auto& DelegateStr = TEXT("delegate");
FFuncInfo FunctionData = FunctionDef.GetFunctionData(); // THIS IS A COPY
check(FunctionDef.HasAnyFunctionFlags(FUNC_Delegate));
const bool bIsMulticastDelegate = FunctionDef.HasAnyFunctionFlags( FUNC_MulticastDelegate );
// Unmangle the function name
const FString DelegateName = FunctionDef.GetName().LeftChop(HEADER_GENERATED_DELEGATE_SIGNATURE_SUFFIX_LENGTH);
// Add class name to beginning of function, to avoid collisions with other classes with the same delegate name in this scope
check(FunctionData.MarshallAndCallName.StartsWith(DelegateStr));
FString ShortName = *FunctionData.MarshallAndCallName + UE_ARRAY_COUNT(DelegateStr) - 1;
FunctionData.MarshallAndCallName = FString::Printf( TEXT( "F%s_DelegateWrapper" ), *ShortName );
// Setup delegate parameter
const FString ExtraParam = FString::Printf(
TEXT( "const %s& %s" ),
bIsMulticastDelegate ? TEXT( "FMulticastScriptDelegate" ) : TEXT( "FScriptDelegate" ),
*DelegateName
);
FUHTStringBuilder DelegateOutput;
DelegateOutput.Log(TEXT("static "));
// export the line that looks like: int32 Main(const FString& Parms)
ExportNativeFunctionHeader(DelegateOutput, OutReferenceGatherers.ForwardDeclarations, FunctionDef, FunctionData, EExportFunctionType::Event, EExportFunctionHeaderStyle::Declaration, *ExtraParam, *GetAPIString());
// Only exporting function prototype
DelegateOutput.Logf(TEXT(";\r\n"));
ExportFunction(Out, OutReferenceGatherers, SourceFile, FunctionDef, false);
}
void FNativeClassHeaderGenerator::ExportDelegateDefinition(FOutputDevice& Out, FReferenceGatherers& OutReferenceGatherers, const FUnrealSourceFile& SourceFile, FUnrealFunctionDefinitionInfo& FunctionDef) const
{
const auto& DelegateStr = TEXT("delegate");
FFuncInfo FunctionData = FunctionDef.GetFunctionData(); // THIS IS A COPY
check(FunctionDef.HasAnyFunctionFlags(FUNC_Delegate));
// Export parameters structs for all delegates. We'll need these to declare our delegate execution function.
FUHTStringBuilder DelegateOutput;
ExportEventParm(DelegateOutput, OutReferenceGatherers.ForwardDeclarations, FunctionDef, /*Indent=*/ 0, /*bOutputConstructor=*/ true, EExportingState::Normal);
const bool bIsMulticastDelegate = FunctionDef.HasAnyFunctionFlags( FUNC_MulticastDelegate );
// Unmangle the function name
const FString DelegateName = FunctionDef.GetName().LeftChop(HEADER_GENERATED_DELEGATE_SIGNATURE_SUFFIX_LENGTH);
// Always export delegate wrapper functions as inline
FunctionData.FunctionExportFlags |= FUNCEXPORT_Inline;
// Add class name to beginning of function, to avoid collisions with other classes with the same delegate name in this scope
check(FunctionData.MarshallAndCallName.StartsWith(DelegateStr));
FString ShortName = *FunctionData.MarshallAndCallName + UE_ARRAY_COUNT(DelegateStr) - 1;
FunctionData.MarshallAndCallName = FString::Printf( TEXT( "F%s_DelegateWrapper" ), *ShortName );
// Setup delegate parameter
const FString ExtraParam = FString::Printf(
TEXT( "const %s& %s" ),
bIsMulticastDelegate ? TEXT( "FMulticastScriptDelegate" ) : TEXT( "FScriptDelegate" ),
*DelegateName
);
DelegateOutput.Log(TEXT("static "));
// export the line that looks like: int32 Main(const FString& Parms)
ExportNativeFunctionHeader(DelegateOutput, OutReferenceGatherers.ForwardDeclarations, FunctionDef, FunctionData, EExportFunctionType::Event, EExportFunctionHeaderStyle::Declaration, *ExtraParam, *GetAPIString());
FParmsAndReturnProperties Parameters = GetFunctionParmsAndReturn(FunctionDef);
WriteEventFunctionPrologue(DelegateOutput, 0, Parameters, *FunctionDef.GetOuter(), *DelegateName);
{
const TCHAR* DelegateType = bIsMulticastDelegate ? TEXT( "ProcessMulticastDelegate" ) : TEXT( "ProcessDelegate" );
const TCHAR* DelegateArg = Parameters.HasParms() ? TEXT("&Parms") : TEXT("NULL");
DelegateOutput.Logf(TEXT("\t%s.%s<UObject>(%s);\r\n"), *DelegateName, DelegateType, DelegateArg);
}
WriteEventFunctionEpilogue(DelegateOutput, 0, Parameters);
FString MacroName = SourceFile.GetGeneratedMacroName(FunctionData.MacroLine, TEXT("_DELEGATE"));
WriteMacro(Out, MacroName, DelegateOutput);
}
void FNativeClassHeaderGenerator::ExportEventParm(FUHTStringBuilder& Out, TSet<FString>& ForwardDeclarations, FUnrealFunctionDefinitionInfo& FunctionDef, int32 Indent, bool bOutputConstructor, EExportingState ExportingState)
{
if (!WillExportEventParms(FunctionDef))
{
return;
}
FString FunctionName = FunctionDef.GetName();
if (FunctionDef.HasAnyFunctionFlags(FUNC_Delegate))
{
FunctionName.LeftChopInline(HEADER_GENERATED_DELEGATE_SIGNATURE_SUFFIX_LENGTH, false);
}
FString EventParmStructName = GetEventStructParamsName(*FunctionDef.GetOuter(), *FunctionName);
Out.Logf(TEXT("%sstruct %s\r\n"), FCString::Tab(Indent), *EventParmStructName);
Out.Logf(TEXT("%s{\r\n"), FCString::Tab(Indent));
for (TSharedRef<FUnrealPropertyDefinitionInfo> PropDef : FunctionDef.GetProperties())
{
FPropertyBase& PropertyBase = PropDef->GetPropertyBase();
if (!PropDef->HasAnyPropertyFlags(CPF_Parm))
{
continue;
}
ForwardDeclarations.Add(PropDef->GetCPPTypeForwardDeclaration());
FUHTStringBuilder PropertyText;
PropertyText.Log(FCString::Tab(Indent + 1));
bool bEmitConst = PropDef->HasAnyPropertyFlags(CPF_ConstParm) && PropertyBase.IsObjectRefOrObjectRefStaticArray();
//@TODO: UCREMOVAL: This is awful code duplication to avoid a double-const
{
//@TODO: bEmitConst will only be true if we have an object, so checking interface here doesn't do anything.
// export 'const' for parameters
const bool bIsConstParam = PropertyBase.IsInterfaceOrInterfaceStaticArray() && !PropDef->HasAllPropertyFlags(CPF_OutParm); //@TODO: This should be const once that flag exists
const bool bIsOnConstClass = PropertyBase.IsObjectRefOrObjectRefStaticArray() && PropertyBase.ClassDef->HasAnyClassFlags(CLASS_Const);
if (bIsConstParam || bIsOnConstClass)
{
bEmitConst = false; // ExportCppDeclaration will do it for us
}
}
if (bEmitConst)
{
PropertyText.Logf(TEXT("const "));
}
PropDef->ExportCppDeclaration(PropertyText, EExportedDeclaration::Local, PropDef->GetArrayDimensions());
ApplyAlternatePropertyExportText(*PropDef, PropertyText, ExportingState);
PropertyText.Log(TEXT(";\r\n"));
Out += *PropertyText;
}
// constructor must initialize the return property if it needs it
FUnrealPropertyDefinitionInfo* PropDef = FunctionDef.GetReturn();
if (PropDef && bOutputConstructor)
{
const FPropertyBase& PropertyBase = PropDef->GetPropertyBase();
FUHTStringBuilder InitializationAr;
bool bNeedsOutput = true;
switch (PropertyBase.GetUHTPropertyType())
{
case EUHTPropertyType::Struct:
bNeedsOutput = PropDef->HasNoOpConstructor();
break;
case EUHTPropertyType::Name:
case EUHTPropertyType::Delegate:
case EUHTPropertyType::MulticastDelegate:
case EUHTPropertyType::String:
case EUHTPropertyType::Text:
case EUHTPropertyType::DynamicArray:
case EUHTPropertyType::Map:
case EUHTPropertyType::Set:
case EUHTPropertyType::Interface:
case EUHTPropertyType::FieldPath:
bNeedsOutput = false;
}
if (bNeedsOutput)
{
check(!PropDef->IsStaticArray()); // can't return arrays
Out.Logf(TEXT("\r\n%s/** Constructor, initializes return property only **/\r\n"), FCString::Tab(Indent + 1));
Out.Logf(TEXT("%s%s()\r\n"), FCString::Tab(Indent + 1), *EventParmStructName);
Out.Logf(TEXT("%s%s %s(%s)\r\n"), FCString::Tab(Indent + 2), TEXT(":"), *PropDef->GetName(), *GetNullParameterValue(*PropDef, true));
Out.Logf(TEXT("%s{\r\n"), FCString::Tab(Indent + 1));
Out.Logf(TEXT("%s}\r\n"), FCString::Tab(Indent + 1));
}
}
Out.Logf(TEXT("%s};\r\n"), FCString::Tab(Indent));
}
/**
* Get the intrinsic null value for this property
*
* @param Prop the property to get the null value for
* @param bMacroContext true when exporting the P_GET* macro, false when exporting the friendly C++ function header
*
* @return the intrinsic null value for the property (0 for ints, TEXT("") for strings, etc.)
*/
FString FNativeClassHeaderGenerator::GetNullParameterValue(FUnrealPropertyDefinitionInfo& PropertyDef, bool bInitializer/*=false*/)
{
const FPropertyBase& PropertyBase = PropertyDef.GetPropertyBase();
switch (PropertyBase.GetUHTPropertyType())
{
case EUHTPropertyType::Byte:
case EUHTPropertyType::Int16:
case EUHTPropertyType::Int:
case EUHTPropertyType::Int64:
case EUHTPropertyType::UInt16:
case EUHTPropertyType::UInt32:
case EUHTPropertyType::UInt64:
case EUHTPropertyType::Float:
case EUHTPropertyType::Double:
case EUHTPropertyType::LargeWorldCoordinatesReal:
return TEXT("0");
case EUHTPropertyType::Bool:
case EUHTPropertyType::Bool8:
case EUHTPropertyType::Bool16:
case EUHTPropertyType::Bool32:
case EUHTPropertyType::Bool64:
return TEXT("false");
case EUHTPropertyType::ObjectReference:
case EUHTPropertyType::ObjectPtrReference:
case EUHTPropertyType::SoftObjectReference:
case EUHTPropertyType::WeakObjectReference:
case EUHTPropertyType::LazyObjectReference:
return TEXT("NULL");
case EUHTPropertyType::Interface:
return TEXT("NULL");
case EUHTPropertyType::Name:
return TEXT("NAME_None");
case EUHTPropertyType::String:
return TEXT("TEXT(\"\")");
case EUHTPropertyType::DynamicArray:
case EUHTPropertyType::Map:
case EUHTPropertyType::Set:
case EUHTPropertyType::Delegate:
case EUHTPropertyType::MulticastDelegate:
{
FString Type, ExtendedType;
Type = PropertyDef.GetCPPType(&ExtendedType, CPPF_OptionalValue);
return Type + ExtendedType + TEXT("()");
}
case EUHTPropertyType::Struct:
{
bool bHasNoOpConstuctor = PropertyDef.HasNoOpConstructor();
if (bInitializer && bHasNoOpConstuctor)
{
return TEXT("ForceInit");
}
FString Type, ExtendedType;
Type = PropertyDef.GetCPPType(&ExtendedType, CPPF_OptionalValue);
return Type + ExtendedType + (bHasNoOpConstuctor ? TEXT("(ForceInit)") : TEXT("()"));
}
case EUHTPropertyType::Text:
return TEXT("FText::GetEmpty()");
case EUHTPropertyType::Enum:
{
if (PropertyBase.EnumDef->GetCppForm() != UEnum::ECppForm::EnumClass)
{
return TEXT("0");
}
return FString::Printf(TEXT("(%s)0"), *PropertyDef.GetCPPType());
}
case EUHTPropertyType::FieldPath:
return TEXT("nullptr");
default:
UE_LOG(LogCompile, Fatal, TEXT("GetNullParameterValue - Unhandled property type '%s': %s"), *PropertyDef.GetEngineClassName(), *PropertyDef.GetPathName());
return TEXT("");
}
}
FString FNativeClassHeaderGenerator::GetFunctionReturnString(FUnrealFunctionDefinitionInfo& FunctionDef, FReferenceGatherers& OutReferenceGatherers)
{
FString Result;
if (FUnrealPropertyDefinitionInfo* ReturnDef = FunctionDef.GetReturn())
{
FString ExtendedReturnType;
OutReferenceGatherers.ForwardDeclarations.Add(ReturnDef->GetCPPTypeForwardDeclaration());
FString ReturnType = ReturnDef->GetCPPType(&ExtendedReturnType, CPPF_ArgumentOrReturnValue);
FUHTStringBuilder ReplacementText;
ReplacementText += MoveTemp(ReturnType);
ApplyAlternatePropertyExportText(*ReturnDef, ReplacementText, EExportingState::Normal);
Result = MoveTemp(ReplacementText) + MoveTemp(ExtendedReturnType);
}
else
{
Result = TEXT("void");
}
return Result;
}
void FNativeClassHeaderGenerator::CheckRPCFunctions(FReferenceGatherers& OutReferenceGatherers, FUnrealFunctionDefinitionInfo& FunctionDef, const FString& ClassName, const FFindDelcarationResults& Implementation, const FFindDelcarationResults& Validation, const FUnrealSourceFile& SourceFile) const
{
bool bHasImplementation = Implementation.WasFound();
bool bHasValidate = Validation.WasFound();
const FFuncInfo& FunctionData = FunctionDef.GetFunctionData();
FString FunctionReturnType = GetFunctionReturnString(FunctionDef, OutReferenceGatherers);
const TCHAR* ConstModifier = (FunctionDef.HasAllFunctionFlags(FUNC_Const) ? TEXT("const ") : TEXT(" "));
const bool bIsNative = FunctionDef.HasAllFunctionFlags(FUNC_Native);
const bool bIsNet = FunctionDef.HasAllFunctionFlags(FUNC_Net);
const bool bIsNetValidate = FunctionDef.HasAllFunctionFlags(FUNC_NetValidate);
const bool bIsNetResponse = FunctionDef.HasAllFunctionFlags(FUNC_NetResponse);
const bool bIsBlueprintEvent = FunctionDef.HasAllFunctionFlags(FUNC_BlueprintEvent);
bool bNeedsImplementation = (bIsNet && !bIsNetResponse) || bIsBlueprintEvent || bIsNative;
bool bNeedsValidate = (bIsNative || bIsNet) && !bIsNetResponse && bIsNetValidate;
check(bNeedsImplementation || bNeedsValidate);
FString ParameterString = GetFunctionParameterString(FunctionDef, OutReferenceGatherers);
const FString& Filename = SourceFile.GetFilename();
const FString& FileContent = SourceFile.GetContent();
//
// Get string with function specifiers, listing why we need _Implementation or _Validate functions.
//
TArray<const TCHAR*, TInlineAllocator<4>> FunctionSpecifiers;
if (bIsNative) { FunctionSpecifiers.Add(TEXT("Native")); }
if (bIsNet) { FunctionSpecifiers.Add(TEXT("Net")); }
if (bIsBlueprintEvent) { FunctionSpecifiers.Add(TEXT("BlueprintEvent")); }
if (bIsNetValidate) { FunctionSpecifiers.Add(TEXT("NetValidate")); }
check(FunctionSpecifiers.Num() > 0);
//
// Coin static_assert message
//
FUHTStringBuilder AssertMessage;
AssertMessage.Logf(TEXT("Function %s was marked as %s"), *(FunctionDef.GetName()), FunctionSpecifiers[0]);
for (int32 i = 1; i < FunctionSpecifiers.Num(); ++i)
{
AssertMessage.Logf(TEXT(", %s"), FunctionSpecifiers[i]);
}
AssertMessage.Logf(TEXT("."));
//
// Check if functions are missing.
//
if (bNeedsImplementation && !bHasImplementation)
{
FString FunctionDecl = FString::Printf(TEXT("virtual %s %s::%s(%s) %s"), *FunctionReturnType, *ClassName, *FunctionData.CppImplName, *ParameterString, *ConstModifier);
FunctionDef.Throwf(TEXT("%s Declare function %s"), *AssertMessage, *FunctionDecl);
}
if (bNeedsValidate && !bHasValidate)
{
FString FunctionDecl = FString::Printf(TEXT("virtual bool %s::%s(%s) %s"), *ClassName, *FunctionData.CppValidationImplName, *ParameterString, *ConstModifier);
FunctionDef.Throwf(TEXT("%s Declare function %s"), *AssertMessage, *FunctionDecl);
}
//
// If all needed functions are declared, check if they have virtual specifiers.
//
if (bNeedsImplementation && bHasImplementation && !Implementation.IsVirtual())
{
FString FunctionDecl = FString::Printf(TEXT("%s %s::%s(%s) %s"), *FunctionReturnType, *ClassName, *FunctionData.CppImplName, *ParameterString, *ConstModifier);
FunctionDef.Throwf(TEXT("Declared function %sis not marked as virtual."), *FunctionDecl);
}
if (bNeedsValidate && bHasValidate && !Validation.IsVirtual())
{
FString FunctionDecl = FString::Printf(TEXT("bool %s::%s(%s) %s"), *ClassName, *FunctionData.CppValidationImplName, *ParameterString, *ConstModifier);
FunctionDef.Throwf(TEXT("Declared function %sis not marked as virtual."), *FunctionDecl);
}
}
void FNativeClassHeaderGenerator::ExportNativeFunctionHeader(
FOutputDevice& Out,
TSet<FString>& ForwardDeclarations,
FUnrealFunctionDefinitionInfo& FunctionDef,
const FFuncInfo& FunctionData,
EExportFunctionType::Type FunctionType,
EExportFunctionHeaderStyle::Type FunctionHeaderStyle,
const TCHAR* ExtraParam,
const TCHAR* APIString
)
{
const bool bIsDelegate = FunctionDef.HasAnyFunctionFlags( FUNC_Delegate );
const bool bIsInterface = !bIsDelegate && FunctionDef.GetOwnerClass()->HasAnyClassFlags(CLASS_Interface);
const bool bIsK2Override = FunctionDef.HasAnyFunctionFlags( FUNC_BlueprintEvent );
if (!bIsDelegate)
{
Out.Log(TEXT("\t"));
}
if (FunctionHeaderStyle == EExportFunctionHeaderStyle::Declaration)
{
// cpp implementation of functions never have these appendages
// If the function was marked as 'RequiredAPI', then add the *_API macro prefix. Note that if the class itself
// was marked 'RequiredAPI', this is not needed as C++ will exports all methods automatically.
if (FunctionType != EExportFunctionType::Event &&
!FunctionDef.GetOwnerClass()->HasAnyClassFlags(CLASS_RequiredAPI) &&
(FunctionData.FunctionExportFlags & FUNCEXPORT_RequiredAPI))
{
Out.Log(APIString);
}
if(FunctionType == EExportFunctionType::Interface)
{
Out.Log(TEXT("static "));
}
else if (bIsK2Override)
{
Out.Log(TEXT("virtual "));
}
// if the owning class is an interface class
else if ( bIsInterface )
{
Out.Log(TEXT("virtual "));
}
// this is not an event, the function is not a static function and the function is not marked final
else if ( FunctionType != EExportFunctionType::Event && !FunctionDef.HasAnyFunctionFlags(FUNC_Static) && !(FunctionData.FunctionExportFlags & FUNCEXPORT_Final) )
{
Out.Log(TEXT("virtual "));
}
else if( FunctionData.FunctionExportFlags & FUNCEXPORT_Inline )
{
Out.Log(TEXT("inline "));
}
}
FUnrealPropertyDefinitionInfo* ReturnPropertyDef = FunctionDef.GetReturn();
if (ReturnPropertyDef != nullptr)
{
if (ReturnPropertyDef->HasAnyPropertyFlags(EPropertyFlags::CPF_ConstParm))
{
Out.Log(TEXT("const "));
}
FString ExtendedReturnType;
FString ReturnType = ReturnPropertyDef->GetCPPType(&ExtendedReturnType, (FunctionHeaderStyle == EExportFunctionHeaderStyle::Definition && (FunctionType != EExportFunctionType::Interface) ? CPPF_Implementation : 0) | CPPF_ArgumentOrReturnValue);
ForwardDeclarations.Add(ReturnPropertyDef->GetCPPTypeForwardDeclaration());
FUHTStringBuilder ReplacementText;
ReplacementText += ReturnType;
ApplyAlternatePropertyExportText(*ReturnPropertyDef, ReplacementText, EExportingState::Normal);
Out.Logf(TEXT("%s%s"), *ReplacementText, *ExtendedReturnType);
}
else
{
Out.Log( TEXT("void") );
}
FString FunctionName;
if (FunctionHeaderStyle == EExportFunctionHeaderStyle::Definition)
{
FunctionName = FString::Printf(TEXT("%s::"), *UHTCastChecked<FUnrealClassDefinitionInfo>(FunctionDef.GetOuter()).GetAlternateNameCPP(bIsInterface || FunctionType == EExportFunctionType::Interface));
}
if (FunctionType == EExportFunctionType::Interface)
{
FunctionName += FString::Printf(TEXT("Execute_%s"), *FunctionDef.GetName());
}
else if (FunctionType == EExportFunctionType::Event)
{
FunctionName += FunctionData.MarshallAndCallName;
}
else
{
FunctionName += FunctionData.CppImplName;
}
Out.Logf(TEXT(" %s("), *FunctionName);
int32 ParmCount=0;
// Emit extra parameter if we have one
if( ExtraParam )
{
Out.Log(ExtraParam);
++ParmCount;
}
for (TSharedRef<FUnrealPropertyDefinitionInfo> PropertyDef : FunctionDef.GetProperties())
{
if (!PropertyDef->HasSpecificPropertyFlags(CPF_Parm | CPF_ReturnParm, CPF_Parm))
{
continue;
}
ForwardDeclarations.Add(PropertyDef->GetCPPTypeForwardDeclaration());
if( ParmCount++ )
{
Out.Log(TEXT(", "));
}
FUHTStringBuilder PropertyText;
PropertyDef->ExportCppDeclaration( PropertyText, EExportedDeclaration::Parameter, PropertyDef->GetArrayDimensions() );
ApplyAlternatePropertyExportText(*PropertyDef, PropertyText, EExportingState::Normal);
Out.Log(*PropertyText);
}
Out.Log( TEXT(")") );
if (FunctionType != EExportFunctionType::Interface)
{
if (!bIsDelegate && FunctionDef.HasAllFunctionFlags(FUNC_Const))
{
Out.Log( TEXT(" const") );
}
if (bIsInterface && FunctionHeaderStyle == EExportFunctionHeaderStyle::Declaration)
{
// all methods in interface classes are pure virtuals
if (bIsK2Override)
{
// For BlueprintNativeEvent methods we emit a stub implementation. This allows Blueprints that implement the interface class to be nativized.
FString ReturnValue;
if (ReturnPropertyDef != nullptr)
{
if (ReturnPropertyDef->IsByteEnumOrByteEnumStaticArray())
{
ReturnValue = FString::Printf(TEXT(" return TEnumAsByte<%s>(%s); "), *ReturnPropertyDef->GetPropertyBase().AsEnum()->GetCppType(), *GetNullParameterValue(*ReturnPropertyDef, false));
}
else
{
ReturnValue = FString::Printf(TEXT(" return %s; "), *GetNullParameterValue(*ReturnPropertyDef, false));
}
}
Out.Logf(TEXT(" {%s}"), *ReturnValue);
}
else
{
Out.Log(TEXT("=0"));
}
}
}
}
/**
* Export the actual internals to a standard thunk function
*
* @param RPCWrappers output device for writing
* @param FunctionData function data for the current function
* @param Parameters list of parameters in the function
* @param Return return parameter for the function
* @param DeprecationWarningOutputDevice Device to output deprecation warnings for _Validate and _Implementation functions.
*/
void FNativeClassHeaderGenerator::ExportFunctionThunk(FUHTStringBuilder& RPCWrappers, FReferenceGatherers& OutReferenceGatherers, FUnrealFunctionDefinitionInfo& FunctionDef, const TArray<FUnrealPropertyDefinitionInfo*>& ParameterDefs, FUnrealPropertyDefinitionInfo* ReturnDef) const
{
const FFuncInfo& FunctionData = FunctionDef.GetFunctionData();
// export the GET macro for this parameter
FString ParameterList;
for (int32 ParameterIndex = 0; ParameterIndex < ParameterDefs.Num(); ParameterIndex++)
{
FUnrealPropertyDefinitionInfo* ParamDef = ParameterDefs[ParameterIndex];
const FPropertyBase& PropertyBase = ParamDef->GetPropertyBase();
OutReferenceGatherers.ForwardDeclarations.Add(ParamDef->GetCPPTypeForwardDeclaration());
FString EvalBaseText = TEXT("P_GET_"); // e.g. P_GET_STR
FString EvalModifierText; // e.g. _REF
FString EvalParameterText; // e.g. (UObject*,NULL)
FString TypeText;
if (ParamDef->IsStaticArray())
{
EvalBaseText += TEXT("ARRAY");
TypeText = ParamDef->GetCPPType();
}
else
{
EvalBaseText += ParamDef->GetCPPMacroType(TypeText);
if (PropertyBase.ArrayType == EArrayType::Dynamic && PropertyBase.Type == CPT_Interface)
{
FString InterfaceTypeText;
ParamDef->GetValuePropDef().GetCPPMacroType(InterfaceTypeText);
TypeText += FString::Printf(TEXT("<%s>"), *InterfaceTypeText);
}
}
bool bPassAsNoPtr = ParamDef->HasAllPropertyFlags(CPF_UObjectWrapper | CPF_OutParm) && ParamDef->IsClassRefOrClassRefStaticArray();
if (bPassAsNoPtr)
{
TypeText = ParamDef->GetCPPType();
}
FUHTStringBuilder ReplacementText;
ReplacementText += TypeText;
ApplyAlternatePropertyExportText(*ParamDef, ReplacementText, EExportingState::Normal);
TypeText = ReplacementText;
FString DefaultValueText;
FString ParamPrefix = TEXT("Z_Param_");
// if this property is an out parm, add the REF tag
if (ParamDef->HasAnyPropertyFlags(CPF_OutParm))
{
if (!bPassAsNoPtr)
{
EvalModifierText += TEXT("_REF");
}
else
{
// Parameters passed as TSubclassOf<Class>& shouldn't have asterisk added.
EvalModifierText += TEXT("_REF_NO_PTR");
}
ParamPrefix += TEXT("Out_");
}
// if this property requires a specialization, add a comma to the type name so we can print it out easily
if (TypeText != TEXT(""))
{
TypeText += TCHAR(',');
}
FString ParamName = ParamPrefix + ParamDef->GetName();
EvalParameterText = FString::Printf(TEXT("(%s%s%s)"), *TypeText, *ParamName, *DefaultValueText);
RPCWrappers.Logf(TEXT("\t\t%s%s%s;" LINE_TERMINATOR_ANSI), *EvalBaseText, *EvalModifierText, *EvalParameterText);
// add this property to the parameter list string
if (ParameterList.Len())
{
ParameterList += TCHAR(',');
}
if (PropertyBase.Type == CPT_Delegate && PropertyBase.IsPrimitiveOrPrimitiveStaticArray())
{
// For delegates, add an explicit conversion to the specific type of delegate before passing it along
const FString FunctionName = PropertyBase.FunctionDef->GetName().LeftChop(HEADER_GENERATED_DELEGATE_SIGNATURE_SUFFIX_LENGTH);
ParamName = FString::Printf(TEXT("F%s(%s)"), *FunctionName, *ParamName);
}
if (PropertyBase.Type == CPT_MulticastDelegate && PropertyBase.IsPrimitiveOrPrimitiveStaticArray())
{
// For delegates, add an explicit conversion to the specific type of delegate before passing it along
const FString FunctionName = PropertyBase.FunctionDef->GetName().LeftChop(HEADER_GENERATED_DELEGATE_SIGNATURE_SUFFIX_LENGTH);
ParamName = FString::Printf(TEXT("F%s(%s)"), *FunctionName, *ParamName);
}
if (FUnrealEnumDefinitionInfo* EnumDef = PropertyBase.IsPrimitiveOrPrimitiveStaticArray() ? PropertyBase.AsEnum() : nullptr)
{
// For enums, add an explicit conversion
if (!ParamDef->HasAnyPropertyFlags(CPF_OutParm))
{
ParamName = FString::Printf(TEXT("%s(%s)"), *EnumDef->GetCppType(), *ParamName);
}
else
{
if (EnumDef->GetCppForm() == UEnum::ECppForm::EnumClass)
{
// If we're an enum class don't require the wrapper
ParamName = FString::Printf(TEXT("(%s&)(%s)"), *EnumDef->GetCppType(), *ParamName);
}
else
{
ParamName = FString::Printf(TEXT("(TEnumAsByte<%s>&)(%s)"), *EnumDef->GetCppType(), *ParamName);
}
}
}
ParameterList += ParamName;
}
RPCWrappers += TEXT("\t\tP_FINISH;" LINE_TERMINATOR_ANSI);
RPCWrappers += TEXT("\t\tP_NATIVE_BEGIN;" LINE_TERMINATOR_ANSI);
FUnrealClassDefinitionInfo* OwnerClassDef = FunctionDef.GetOwnerClass();
check(OwnerClassDef);
FString ClassName = OwnerClassDef->GetName();
bool bHasImplementation = FindDeclaration(*OwnerClassDef, FunctionData.CppImplName).WasFound();
bool bHasValidate = FindDeclaration(*OwnerClassDef, FunctionData.CppValidationImplName).WasFound();
bool bShouldEnableImplementationDeprecation =
// Enable deprecation warnings only if GENERATED_BODY is used inside class or interface (not GENERATED_UCLASS_BODY etc.)
OwnerClassDef->HasGeneratedBody()
// and implementation function is called, but not the one declared by user
&& (FunctionData.CppImplName != FunctionDef.GetName() && !bHasImplementation);
bool bShouldEnableValidateDeprecation =
// Enable deprecation warnings only if GENERATED_BODY is used inside class or interface (not GENERATED_UCLASS_BODY etc.)
OwnerClassDef->HasGeneratedBody()
// and validation function is called
&& FunctionDef.HasAnyFunctionFlags(FUNC_NetValidate) && !bHasValidate;
//Emit warning here if necessary
FUHTStringBuilder FunctionDeclaration;
ExportNativeFunctionHeader(FunctionDeclaration, OutReferenceGatherers.ForwardDeclarations, FunctionDef, FunctionData, EExportFunctionType::Function, EExportFunctionHeaderStyle::Declaration, nullptr, *GetAPIString());
// Call the validate function if there is one
if (!(FunctionData.FunctionExportFlags & FUNCEXPORT_CppStatic) && FunctionDef.HasAnyFunctionFlags(FUNC_NetValidate))
{
RPCWrappers.Logf(TEXT("\t\tif (!P_THIS->%s(%s))" LINE_TERMINATOR_ANSI), *FunctionData.CppValidationImplName, *ParameterList);
RPCWrappers.Logf(TEXT("\t\t{" LINE_TERMINATOR_ANSI));
RPCWrappers.Logf(TEXT("\t\t\tRPC_ValidateFailed(TEXT(\"%s\"));" LINE_TERMINATOR_ANSI), *FunctionData.CppValidationImplName);
RPCWrappers.Logf(TEXT("\t\t\treturn;" LINE_TERMINATOR_ANSI)); // If we got here, the validation function check failed
RPCWrappers.Logf(TEXT("\t\t}" LINE_TERMINATOR_ANSI));
}
// write out the return value
RPCWrappers.Log(TEXT("\t\t"));
if (ReturnDef)
{
OutReferenceGatherers.ForwardDeclarations.Add(ReturnDef->GetCPPTypeForwardDeclaration());
FUHTStringBuilder ReplacementText;
FString ReturnExtendedType;
ReplacementText += ReturnDef->GetCPPType(&ReturnExtendedType);
ApplyAlternatePropertyExportText(*ReturnDef, ReplacementText, EExportingState::Normal);
FString ReturnType = ReplacementText;
if (ReturnDef->HasAnyPropertyFlags(CPF_ConstParm) && ReturnDef->IsObjectRefOrObjectRefStaticArray())
{
ReturnType = TEXT("const ") + ReturnType;
}
RPCWrappers.Logf(TEXT("*(%s%s*)" PREPROCESSOR_TO_STRING(RESULT_PARAM) "="), *ReturnType, *ReturnExtendedType);
}
// export the call to the C++ version
if (FunctionData.FunctionExportFlags & FUNCEXPORT_CppStatic)
{
RPCWrappers.Logf(TEXT("%s::%s(%s);" LINE_TERMINATOR_ANSI), *FunctionDef.GetOwnerClass()->GetAlternateNameCPP(), *FunctionData.CppImplName, *ParameterList);
}
else
{
RPCWrappers.Logf(TEXT("P_THIS->%s(%s);" LINE_TERMINATOR_ANSI), *FunctionData.CppImplName, *ParameterList);
}
RPCWrappers += TEXT("\t\tP_NATIVE_END;" LINE_TERMINATOR_ANSI);
}
FString FNativeClassHeaderGenerator::GetFunctionParameterString(FUnrealFunctionDefinitionInfo& FunctionDef, FReferenceGatherers& OutReferenceGatherers)
{
FString ParameterList;
FUHTStringBuilder PropertyText;
for (TSharedRef<FUnrealPropertyDefinitionInfo> PropertyDef : FunctionDef.GetProperties())
{
OutReferenceGatherers.ForwardDeclarations.Add(PropertyDef->GetCPPTypeForwardDeclaration());
if (!PropertyDef->HasSpecificPropertyFlags(CPF_Parm | CPF_ReturnParm, CPF_Parm))
{
break;
}
if (ParameterList.Len())
{
ParameterList += TEXT(", ");
}
PropertyDef->ExportCppDeclaration(PropertyText, EExportedDeclaration::Parameter, PropertyDef->GetArrayDimensions(), 0, true);
ApplyAlternatePropertyExportText(*PropertyDef, PropertyText, EExportingState::Normal);
ParameterList += PropertyText;
PropertyText.Reset();
}
return ParameterList;
}
struct FNativeFunctionStringBuilder
{
FUHTStringBuilder RPCWrappers;
FUHTStringBuilder RPCImplementations;
FUHTStringBuilder AutogeneratedBlueprintFunctionDeclarations;
FUHTStringBuilder AutogeneratedBlueprintFunctionDeclarationsOnlyNotDeclared;
FUHTStringBuilder AutogeneratedStaticData;
FUHTStringBuilder AutogeneratedStaticDataFuncs;
FUHTStringBuilder AccessorWrappers;
FUHTStringBuilder AccessorWrapperImplementations;
};
void FNativeClassHeaderGenerator::ExportNativeFunctions(FOutputDevice& OutGeneratedHeaderText, FOutputDevice& OutGeneratedCPPText, FOutputDevice& OutMacroCalls, FOutputDevice& OutNoPureDeclsMacroCalls, FReferenceGatherers& OutReferenceGatherers, const FUnrealSourceFile& SourceFile, FUnrealClassDefinitionInfo& ClassDef) const
{
FNativeFunctionStringBuilder RuntimeStringBuilders;
FNativeFunctionStringBuilder EditorStringBuilders;
const FString ClassCPPName = ClassDef.GetAlternateNameCPP(ClassDef.HasAnyClassFlags(CLASS_Interface));
// gather static class data
TArray<FString> SparseClassDataTypes;
ClassDef.GetSparseClassDataTypes(SparseClassDataTypes);
FString FullClassName = ClassDef.GetNameWithPrefix();
for (const FString& SparseClassDataString : SparseClassDataTypes)
{
RuntimeStringBuilders.AutogeneratedStaticData.Logf(TEXT("F%s* Get%s()\r\n"), *SparseClassDataString, *SparseClassDataString);
RuntimeStringBuilders.AutogeneratedStaticData += TEXT("{\r\n");
RuntimeStringBuilders.AutogeneratedStaticData.Logf(TEXT("\treturn (F%s*)(GetClass()->GetOrCreateSparseClassData());\r\n"), *SparseClassDataString);
RuntimeStringBuilders.AutogeneratedStaticData += TEXT("}\r\n");
RuntimeStringBuilders.AutogeneratedStaticData.Logf(TEXT("F%s* Get%s() const\r\n"), *SparseClassDataString, *SparseClassDataString);
RuntimeStringBuilders.AutogeneratedStaticData += TEXT("{\r\n");
RuntimeStringBuilders.AutogeneratedStaticData.Logf(TEXT("\treturn (F%s*)(GetClass()->GetOrCreateSparseClassData());\r\n"), *SparseClassDataString);
RuntimeStringBuilders.AutogeneratedStaticData += TEXT("}\r\n");
RuntimeStringBuilders.AutogeneratedStaticData.Logf(TEXT("const F%s* Get%s(EGetSparseClassDataMethod GetMethod) const\r\n"), *SparseClassDataString, *SparseClassDataString);
RuntimeStringBuilders.AutogeneratedStaticData += TEXT("{\r\n");
RuntimeStringBuilders.AutogeneratedStaticData.Logf(TEXT("\treturn (const F%s*)(GetClass()->GetSparseClassData(GetMethod));\r\n"), *SparseClassDataString);
RuntimeStringBuilders.AutogeneratedStaticData += TEXT("}\r\n");
FUnrealScriptStructDefinitionInfo* SparseClassDataStructDef = GTypeDefinitionInfoMap.FindByName<FUnrealScriptStructDefinitionInfo>(*SparseClassDataString);
while (SparseClassDataStructDef != nullptr)
{
for (TSharedRef<FUnrealPropertyDefinitionInfo> PropertyDef : SparseClassDataStructDef->GetProperties())
{
FString ReturnExtendedType;
FString VarType = PropertyDef->GetCPPType(&ReturnExtendedType, EPropertyExportCPPFlags::CPPF_ArgumentOrReturnValue | EPropertyExportCPPFlags::CPPF_Implementation);
if (!ReturnExtendedType.IsEmpty())
{
VarType.Append(ReturnExtendedType);
}
FString VarName = PropertyDef->GetName();
FString CleanVarName = VarName;
if (PropertyDef->IsBooleanOrBooleanStaticArray() && VarName.StartsWith(TEXT("b"), ESearchCase::CaseSensitive))
{
CleanVarName = VarName.RightChop(1);
}
if (!PropertyDef->HasMetaData(NAME_NoGetter))
{
if (PropertyDef->HasMetaData(NAME_GetByRef))
{
RuntimeStringBuilders.AutogeneratedStaticDataFuncs.Logf(TEXT("const %s& Get%s()\r\n"), *VarType, *CleanVarName);
}
else
{
RuntimeStringBuilders.AutogeneratedStaticDataFuncs.Logf(TEXT("%s Get%s()\r\n"), *VarType, *CleanVarName);
}
RuntimeStringBuilders.AutogeneratedStaticDataFuncs.Logf(TEXT("{\r\n"));
RuntimeStringBuilders.AutogeneratedStaticDataFuncs.Logf(TEXT("\treturn Get%s()->%s;\r\n"), *SparseClassDataString, *VarName);
RuntimeStringBuilders.AutogeneratedStaticDataFuncs.Logf(TEXT("}\r\n"));
if (PropertyDef->HasMetaData(NAME_GetByRef))
{
RuntimeStringBuilders.AutogeneratedStaticDataFuncs.Logf(TEXT("const %s& Get%s() const\r\n"), *VarType, *CleanVarName);
}
else
{
RuntimeStringBuilders.AutogeneratedStaticDataFuncs.Logf(TEXT("%s Get%s() const\r\n"), *VarType, *CleanVarName);
}
RuntimeStringBuilders.AutogeneratedStaticDataFuncs.Logf(TEXT("{\r\n"));
RuntimeStringBuilders.AutogeneratedStaticDataFuncs.Logf(TEXT("\treturn Get%s()->%s;\r\n"), *SparseClassDataString, *VarName);
RuntimeStringBuilders.AutogeneratedStaticDataFuncs.Logf(TEXT("}\r\n"));
}
}
SparseClassDataStructDef = UHTCast<FUnrealScriptStructDefinitionInfo>(SparseClassDataStructDef->GetSuperStructInfo().Struct);
}
}
TArray<TSharedRef<FUnrealFunctionDefinitionInfo>> Functions;
Algo::Copy(ClassDef.GetFunctions(), Functions);
Algo::Reverse(Functions);
// export the C++ stubs
for (TSharedRef<FUnrealFunctionDefinitionInfo> FunctionDef : Functions)
{
const FFuncInfo& FunctionData = FunctionDef->GetFunctionData();
if (!FunctionDef->HasAnyFunctionFlags(FUNC_Native))
{
continue;
}
const bool bEditorOnlyFunc = FunctionDef->HasAnyFunctionFlags(FUNC_EditorOnly);
FNativeFunctionStringBuilder& FuncStringBuilders = bEditorOnlyFunc ? EditorStringBuilders : RuntimeStringBuilders;
// Custom thunks don't get any C++ stub function generated
if (FunctionData.FunctionExportFlags & FUNCEXPORT_CustomThunk)
{
continue;
}
// Should we emit these to RPC wrappers or just ignore them?
const bool bWillBeProgrammerTyped = FunctionData.CppImplName == FunctionDef->GetName();
if (!bWillBeProgrammerTyped)
{
FString FunctionName = FunctionDef->GetName();
FFindDelcarationResults Implementation = FindDeclaration(ClassDef, FunctionData.CppImplName);
FFindDelcarationResults Validation = FindDeclaration(ClassDef, FunctionData.CppValidationImplName);
//Emit warning here if necessary
FUHTStringBuilder FunctionDeclaration;
ExportNativeFunctionHeader(FunctionDeclaration, OutReferenceGatherers.ForwardDeclarations, *FunctionDef, FunctionData, EExportFunctionType::Function, EExportFunctionHeaderStyle::Declaration, nullptr, *GetAPIString());
FunctionDeclaration.Log(TEXT(";\r\n"));
// Declare validation function if needed
if (FunctionDef->HasAnyFunctionFlags(FUNC_NetValidate))
{
FString ParameterList = GetFunctionParameterString(*FunctionDef, OutReferenceGatherers);
const TCHAR* Virtual = (!FunctionDef->HasAnyFunctionFlags(FUNC_Static) && !(FunctionData.FunctionExportFlags & FUNCEXPORT_Final)) ? TEXT("virtual") : TEXT("");
FStringOutputDevice ValidDecl;
ValidDecl.Logf(TEXT("\t%s bool %s(%s);\r\n"), Virtual, *FunctionData.CppValidationImplName, *ParameterList);
FuncStringBuilders.AutogeneratedBlueprintFunctionDeclarations.Log(*ValidDecl);
if (!Validation.WasFound())
{
FuncStringBuilders.AutogeneratedBlueprintFunctionDeclarationsOnlyNotDeclared.Log(*ValidDecl);
}
}
FuncStringBuilders.AutogeneratedBlueprintFunctionDeclarations.Log(*FunctionDeclaration);
if (!Implementation.WasFound() && FunctionData.CppImplName != FunctionName)
{
FuncStringBuilders.AutogeneratedBlueprintFunctionDeclarationsOnlyNotDeclared.Log(*FunctionDeclaration);
}
// Versions that skip function autodeclaration throw an error when a function is missing.
if (ClassDef.HasGeneratedBody() && (ClassDef.GetGeneratedCodeVersion() > EGeneratedCodeVersion::V1))
{
CheckRPCFunctions(OutReferenceGatherers, *FunctionDef, ClassCPPName, Implementation, Validation, SourceFile);
}
}
FuncStringBuilders.RPCWrappers.Log(TEXT("\r\n"));
// if this function was originally declared in a base class, and it isn't a static function,
// only the C++ function header will be exported
if (!ShouldExportFunction(*FunctionDef))
{
continue;
}
// export the script wrappers
FuncStringBuilders.RPCWrappers.Logf(TEXT("\tDECLARE_FUNCTION(%s);"), *FunctionData.UnMarshallAndCallName);
FuncStringBuilders.RPCImplementations.Logf(TEXT("\tDEFINE_FUNCTION(%s::%s)"), *ClassCPPName, *FunctionData.UnMarshallAndCallName);
FuncStringBuilders.RPCImplementations += TEXT(LINE_TERMINATOR_ANSI "\t{" LINE_TERMINATOR_ANSI);
FParmsAndReturnProperties Parameters = GetFunctionParmsAndReturn(*FunctionDef);
ExportFunctionThunk(FuncStringBuilders.RPCImplementations, OutReferenceGatherers, *FunctionDef, Parameters.Parms, Parameters.Return);
FuncStringBuilders.RPCImplementations += TEXT("\t}" LINE_TERMINATOR_ANSI);
}
// static class data
{
FString MacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine(), TEXT("_SPARSE_DATA"));
WriteMacro(OutGeneratedHeaderText, MacroName, RuntimeStringBuilders.AutogeneratedStaticData + RuntimeStringBuilders.AutogeneratedStaticDataFuncs);
OutMacroCalls.Logf(TEXT("\t%s\r\n"), *MacroName);
OutNoPureDeclsMacroCalls.Logf(TEXT("\t%s\r\n"), *MacroName);
}
// Write runtime wrappers
{
FString MacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine(), TEXT("_RPC_WRAPPERS"));
// WriteMacro has an assumption about what will be at the end of this block that is no longer true due to splitting the
// definition and implementation, so add on a line terminator to satisfy it
if (RuntimeStringBuilders.RPCWrappers.Len() > 0)
{
RuntimeStringBuilders.RPCWrappers += LINE_TERMINATOR;
}
WriteMacro(OutGeneratedHeaderText, MacroName, RuntimeStringBuilders.AutogeneratedBlueprintFunctionDeclarations + RuntimeStringBuilders.RPCWrappers);
OutMacroCalls.Logf(TEXT("\t%s\r\n"), *MacroName);
// Put static checks before RPCWrappers to get proper messages from static asserts before compiler errors.
FString NoPureDeclsMacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine(), TEXT("_RPC_WRAPPERS_NO_PURE_DECLS"));
if (ClassDef.GetGeneratedCodeVersion() > EGeneratedCodeVersion::V1)
{
WriteMacro(OutGeneratedHeaderText, NoPureDeclsMacroName, RuntimeStringBuilders.RPCWrappers);
}
else
{
WriteMacro(OutGeneratedHeaderText, NoPureDeclsMacroName, RuntimeStringBuilders.AutogeneratedBlueprintFunctionDeclarationsOnlyNotDeclared + RuntimeStringBuilders.RPCWrappers);
}
OutNoPureDeclsMacroCalls.Logf(TEXT("\t%s\r\n"), *NoPureDeclsMacroName);
OutGeneratedCPPText.Log(RuntimeStringBuilders.RPCImplementations);
}
// Write editor only RPC wrappers if they exist
if (EditorStringBuilders.RPCWrappers.Len() > 0)
{
OutGeneratedHeaderText.Log( BeginEditorOnlyGuard );
FString MacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine(), TEXT("_EDITOR_ONLY_RPC_WRAPPERS"));
// WriteMacro has an assumption about what will be at the end of this block that is no longer true due to splitting the
// definition and implementation, so add on a line terminator to satisfy it
if (EditorStringBuilders.RPCWrappers.Len() > 0)
{
EditorStringBuilders.RPCWrappers += LINE_TERMINATOR;
}
WriteMacro(OutGeneratedHeaderText, MacroName, EditorStringBuilders.AutogeneratedBlueprintFunctionDeclarations + EditorStringBuilders.RPCWrappers);
OutMacroCalls.Logf(TEXT("\t%s\r\n"), *MacroName);
// Put static checks before RPCWrappers to get proper messages from static asserts before compiler errors.
FString NoPureDeclsMacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine(), TEXT("_EDITOR_ONLY_RPC_WRAPPERS_NO_PURE_DECLS"));
if (ClassDef.GetGeneratedCodeVersion() > EGeneratedCodeVersion::V1)
{
WriteMacro(OutGeneratedHeaderText, NoPureDeclsMacroName, EditorStringBuilders.RPCWrappers);
}
else
{
WriteMacro(OutGeneratedHeaderText, NoPureDeclsMacroName, EditorStringBuilders.AutogeneratedBlueprintFunctionDeclarationsOnlyNotDeclared + EditorStringBuilders.RPCWrappers);
}
// write out an else preprocessor block for when not compiling for the editor. The generated macros should be empty then since the functions are compiled out
{
OutGeneratedHeaderText.Log(TEXT("#else\r\n"));
WriteMacro(OutGeneratedHeaderText, MacroName, TEXT(""));
WriteMacro(OutGeneratedHeaderText, NoPureDeclsMacroName, TEXT(""));
OutGeneratedHeaderText.Log(EndEditorOnlyGuard);
}
OutNoPureDeclsMacroCalls.Logf(TEXT("\t%s\r\n"), *NoPureDeclsMacroName);
OutGeneratedCPPText.Log(BeginEditorOnlyGuard);
OutGeneratedCPPText.Log(EditorStringBuilders.RPCImplementations);
OutGeneratedCPPText.Log(EndEditorOnlyGuard);
}
// Property setters and getters
{
TArray<TSharedRef<FUnrealPropertyDefinitionInfo>>& Properties = ClassDef.GetProperties();
for (TSharedRef<FUnrealPropertyDefinitionInfo>& Prop : Properties)
{
const bool bEditorOnlyProperty = Prop->IsEditorOnlyProperty();
if (!Prop->GetPropertyBase().GetterName.IsEmpty() && Prop->GetPropertyBase().bGetterFunctionFound)
{
const FString GetterWrapperFunctionName = GetPropertyGetterWrapperName(*Prop);
RuntimeStringBuilders.AccessorWrappers.Logf(TEXT("static void %s(const void* Object, void* OutValue);\r\n"), *GetterWrapperFunctionName);
RuntimeStringBuilders.AccessorWrapperImplementations.Logf(TEXT("\tvoid %s::%s(const void* Object, void* OutValue)\r\n"), *ClassCPPName, *GetterWrapperFunctionName);
RuntimeStringBuilders.AccessorWrapperImplementations += TEXT("\t{\r\n");
if (bEditorOnlyProperty)
{
RuntimeStringBuilders.AccessorWrapperImplementations += TEXT("\t#if WITH_EDITORONLY_DATA\r\n");
}
RuntimeStringBuilders.AccessorWrapperImplementations.Logf(TEXT("\t\tconst %s* Obj = (const %s*)Object;\r\n"), *ClassCPPName, *ClassCPPName);
FString ExtendedType;
FString PropertyType = Prop->GetCPPType(&ExtendedType, CPPF_Implementation | CPPF_ArgumentOrReturnValue);
PropertyType += ExtendedType;
if (Prop->GetArrayDimensions())
{
RuntimeStringBuilders.AccessorWrapperImplementations.Logf(TEXT("\t\t%s* Source = (%s*)Obj->%s();\r\n"), *PropertyType, *PropertyType, *Prop->GetPropertyBase().GetterName);
RuntimeStringBuilders.AccessorWrapperImplementations.Logf(TEXT("\t\t%s* Result = (%s*)OutValue;\r\n"), *PropertyType, *PropertyType);
RuntimeStringBuilders.AccessorWrapperImplementations.Logf(TEXT("\t\tCopyAssignItems(Result, Source, %s);\r\n"), Prop->GetArrayDimensions());
}
else
{
RuntimeStringBuilders.AccessorWrapperImplementations.Logf(TEXT("\t\t%s& Result = *(%s*)OutValue;\r\n"), *PropertyType, *PropertyType);
RuntimeStringBuilders.AccessorWrapperImplementations.Logf(TEXT("\t\tResult = (%s)Obj->%s();\r\n"), *PropertyType, *Prop->GetPropertyBase().GetterName);
}
if (bEditorOnlyProperty)
{
RuntimeStringBuilders.AccessorWrapperImplementations += TEXT("\t#endif // WITH_EDITORONLY_DATA\r\n");
}
RuntimeStringBuilders.AccessorWrapperImplementations += TEXT("\t}\r\n");
}
if (!Prop->GetPropertyBase().SetterName.IsEmpty() && Prop->GetPropertyBase().bSetterFunctionFound)
{
const FString SetterWrapperFunctionName = GetPropertySetterWrapperName(*Prop);
RuntimeStringBuilders.AccessorWrappers.Logf(TEXT("static void %s(void* Object, const void* InValue);\r\n"), *SetterWrapperFunctionName);
RuntimeStringBuilders.AccessorWrapperImplementations.Logf(TEXT("\tvoid %s::%s(void* Object, const void* InValue)\r\n"), *ClassCPPName, *SetterWrapperFunctionName);
RuntimeStringBuilders.AccessorWrapperImplementations += TEXT("\t{\r\n");
if (bEditorOnlyProperty)
{
RuntimeStringBuilders.AccessorWrapperImplementations += TEXT("\t#if WITH_EDITORONLY_DATA\r\n");
}
RuntimeStringBuilders.AccessorWrapperImplementations.Logf(TEXT("\t\t%s* Obj = (%s*)Object;\r\n"), *ClassCPPName, *ClassCPPName);
FString ExtendedType;
FString PropertyType = Prop->GetCPPType(&ExtendedType, CPPF_Implementation | CPPF_ArgumentOrReturnValue);
PropertyType += ExtendedType;
if (Prop->GetArrayDimensions())
{
RuntimeStringBuilders.AccessorWrapperImplementations.Logf(TEXT("\t\t%s* Value = (%s*)InValue;\r\n"), *PropertyType, *PropertyType);
}
else if (Prop->IsByteEnumOrByteEnumStaticArray() && Prop->GetPropertyBase().ArrayType == EArrayType::None)
{
// If someone passed in a TEnumAsByte instead of the actual enum value, the cast in the else clause would cause an issue.
// Since this is known to be a TEnumAsByte, we just fetch the first byte. *HOWEVER* on MSB machines where
// the actual enum value is passed in this will fail and return zero if the native size of the enum > 1 byte.
RuntimeStringBuilders.AccessorWrapperImplementations.Logf(TEXT("\t\t%s Value = (%s)*(uint8*)InValue;\r\n"), *PropertyType, *PropertyType);
}
else
{
RuntimeStringBuilders.AccessorWrapperImplementations.Logf(TEXT("\t\t%s& Value = *(%s*)InValue;\r\n"), *PropertyType, *PropertyType);
}
RuntimeStringBuilders.AccessorWrapperImplementations.Logf(TEXT("\t\tObj->%s(Value);\r\n"), *Prop->GetPropertyBase().SetterName);
if (bEditorOnlyProperty)
{
RuntimeStringBuilders.AccessorWrapperImplementations += TEXT("\t#endif // WITH_EDITORONLY_DATA\r\n");
}
RuntimeStringBuilders.AccessorWrapperImplementations += TEXT("\t}\r\n");
}
}
FString MacroName = SourceFile.GetGeneratedMacroName(ClassDef.GetGeneratedBodyLine(), TEXT("_ACCESSORS"));
WriteMacro(OutGeneratedHeaderText, MacroName, RuntimeStringBuilders.AccessorWrappers);
OutMacroCalls.Logf(TEXT("\t%s\r\n"), *MacroName);
OutNoPureDeclsMacroCalls.Logf(TEXT("\t%s\r\n"), *MacroName);
OutGeneratedCPPText.Log(RuntimeStringBuilders.AccessorWrapperImplementations);
}
}
void FNativeClassHeaderGenerator::ExportFieldNotify(FOutputDevice& OutGeneratedHeaderText, FOutputDevice& OutGeneratedCPPText, FOutputDevice& StandardUObjectConstructorsMacroCall, FOutputDevice& EnhancedUObjectConstructorsMacroCall, const FString& ConstructorsMacroPrefix, FUnrealClassDefinitionInfo& ClassDef) const
{
TArray<TSharedRef<FUnrealPropertyDefinitionInfo>> EditorProperties;
TArray<TSharedRef<FUnrealPropertyDefinitionInfo>> RuntimeProperties;
TArray<TSharedRef<FUnrealFunctionDefinitionInfo>> EditorFunctions;
TArray<TSharedRef<FUnrealFunctionDefinitionInfo>> RuntimeFunctions;
const FString ClassCPPName = ClassDef.GetAlternateNameCPP();
const FString APIString = GetAPIString();
if (ClassDef.HasCustomFieldNotify())
{
return;
}
{
TArray<TSharedRef<FUnrealPropertyDefinitionInfo>>& Properties = ClassDef.GetProperties();
for (TSharedRef<FUnrealPropertyDefinitionInfo>& Prop : Properties)
{
if (Prop->GetPropertyBase().bFieldNotify)
{
const bool bEditorOnlyProperty = Prop->IsEditorOnlyProperty();
if (bEditorOnlyProperty)
{
EditorProperties.Add(Prop);
}
else
{
RuntimeProperties.Add(Prop);
}
}
}
for (TSharedRef<FUnrealFunctionDefinitionInfo> FunctionDef : ClassDef.GetFunctions())
{
if (FunctionDef->GetFunctionData().bFieldNotify)
{
const bool bEditorOnlyFunc = FunctionDef->HasAnyFunctionFlags(FUNC_EditorOnly);
if (bEditorOnlyFunc)
{
EditorFunctions.Add(FunctionDef);
}
else
{
RuntimeFunctions.Add(FunctionDef);
}
}
}
}
if (RuntimeProperties.Num() > 0 || EditorProperties.Num() > 0 || RuntimeFunctions.Num() > 0 || EditorFunctions.Num() > 0)
{
FUHTStringBuilder RuntimeHeaderStringBuilders;
FUHTStringBuilder EditorHeaderStringBuilders;
const bool bOnlyHasEditorFields = RuntimeProperties.Num() == 0 && RuntimeFunctions.Num() == 0;
const bool bOnlyHasRuntimeFields = EditorProperties.Num() == 0 && EditorFunctions.Num() == 0;
const bool bHasEditorFields = EditorProperties.Num() > 0 || EditorFunctions.Num() > 0;
if (bOnlyHasEditorFields)
{
OutGeneratedCPPText.Logf(TEXT("#if WITH_EDITORONLY_DATA\r\n"));
}
RuntimeHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_CLASS_DESCRIPTOR_BEGIN(%s)\r\n"), *APIString);
EditorHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_CLASS_DESCRIPTOR_BEGIN(%s)\r\n"), *APIString);
//UE_FIELD_NOTIFICATION_DECLARE_FIELD
{
for (TSharedRef<FUnrealPropertyDefinitionInfo>& Prop : RuntimeProperties)
{
RuntimeHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_FIELD(%s)\r\n"), *Prop->GetName());
EditorHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_FIELD(%s)\r\n"), *Prop->GetName());
OutGeneratedCPPText.Logf(TEXT("\tUE_FIELD_NOTIFICATION_IMPLEMENT_FIELD(%s, %s)\r\n"), *ClassCPPName ,*Prop->GetName());
}
for (TSharedRef<FUnrealFunctionDefinitionInfo>& FunctionDef : RuntimeFunctions)
{
RuntimeHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_FIELD(%s)\r\n"), *FunctionDef->GetFunctionData().CppImplName);
EditorHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_FIELD(%s)\r\n"), *FunctionDef->GetFunctionData().CppImplName);
OutGeneratedCPPText.Logf(TEXT("\tUE_FIELD_NOTIFICATION_IMPLEMENT_FIELD(%s, %s)\r\n"), *ClassCPPName, *FunctionDef->GetFunctionData().CppImplName);
}
if (bHasEditorFields)
{
if (!bOnlyHasEditorFields)
{
OutGeneratedCPPText.Logf(TEXT("#if WITH_EDITORONLY_DATA\r\n"));
}
for (TSharedRef<FUnrealPropertyDefinitionInfo>& Prop : EditorProperties)
{
EditorHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_FIELD(%s)\r\n"), *Prop->GetName());
OutGeneratedCPPText.Logf(TEXT("\tUE_FIELD_NOTIFICATION_IMPLEMENT_FIELD(%s, %s)\r\n"), *ClassCPPName, *Prop->GetName());
}
for (TSharedRef<FUnrealFunctionDefinitionInfo>& FunctionDef : EditorFunctions)
{
EditorHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_FIELD(%s)\r\n"), *FunctionDef->GetFunctionData().CppImplName);
OutGeneratedCPPText.Logf(TEXT("\tUE_FIELD_NOTIFICATION_IMPLEMENT_FIELD(%s, %s)\r\n"), *ClassCPPName, *FunctionDef->GetFunctionData().CppImplName);
}
if (!bOnlyHasEditorFields)
{
OutGeneratedCPPText.Logf(TEXT("#endif // WITH_EDITORONLY_DATA\r\n"));
}
}
}
OutGeneratedCPPText.Logf(TEXT("\tUE_FIELD_NOTIFICATION_IMPLEMENTATION_BEGIN(%s)\r\n"), *ClassCPPName);
//UE_FIELD_NOTIFICATION_DECLARE_ENUM_FIELD
{
bool bIsRuntimeFirst = true;
bool bIsEditorFirst = true;
auto AddFieldNotificationEnumField = [&bIsRuntimeFirst, &bIsEditorFirst, &RuntimeHeaderStringBuilders, &EditorHeaderStringBuilders, &OutGeneratedCPPText, &ClassCPPName](bool bRuntime, const FString& FieldName)
{
if (bRuntime)
{
if (bIsRuntimeFirst)
{
bIsRuntimeFirst = false;
bIsEditorFirst = false;
RuntimeHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_ENUM_FIELD_BEGIN(%s)\r\n"), *FieldName);
EditorHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_ENUM_FIELD_BEGIN(%s)\r\n"), *FieldName);
}
else
{
RuntimeHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_ENUM_FIELD(%s)\r\n"), *FieldName);
EditorHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_ENUM_FIELD(%s)\r\n"), *FieldName);
}
}
else
{
if (bIsEditorFirst)
{
bIsEditorFirst = false;
EditorHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_ENUM_FIELD_BEGIN(%s)\r\n"), *FieldName);
}
EditorHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_ENUM_FIELD(%s)\r\n"), *FieldName);
}
OutGeneratedCPPText.Logf(TEXT("\tUE_FIELD_NOTIFICATION_IMPLEMENT_ENUM_FIELD(%s, %s)\r\n"), *ClassCPPName, *FieldName);
};
bool bIsFirstRuntime = true;
for (TSharedRef<FUnrealPropertyDefinitionInfo>& Prop : RuntimeProperties)
{
AddFieldNotificationEnumField(true, *Prop->GetName());
}
for (TSharedRef<FUnrealFunctionDefinitionInfo>& FunctionDef : RuntimeFunctions)
{
AddFieldNotificationEnumField(true, *FunctionDef->GetFunctionData().CppImplName);
}
if (bHasEditorFields)
{
if (!bOnlyHasEditorFields)
{
OutGeneratedCPPText.Logf(TEXT("#if WITH_EDITORONLY_DATA\r\n"));
}
for (TSharedRef<FUnrealPropertyDefinitionInfo>& Prop : EditorProperties)
{
AddFieldNotificationEnumField(false, *Prop->GetName());
}
for (TSharedRef<FUnrealFunctionDefinitionInfo>& FunctionDef : EditorFunctions)
{
AddFieldNotificationEnumField(false, *FunctionDef->GetFunctionData().CppImplName);
}
if (!bOnlyHasEditorFields)
{
OutGeneratedCPPText.Logf(TEXT("#endif // WITH_EDITORONLY_DATA\r\n"));
}
}
}
RuntimeHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_ENUM_FIELD_END()\r\n"));
EditorHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_ENUM_FIELD_END()\r\n"));
RuntimeHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_CLASS_DESCRIPTOR_END();\r\n"));
EditorHeaderStringBuilders.Logf(TEXT("\tUE_FIELD_NOTIFICATION_DECLARE_CLASS_DESCRIPTOR_END();\r\n"));
OutGeneratedCPPText.Logf(TEXT("\tUE_FIELD_NOTIFICATION_IMPLEMENTATION_END(%s);\r\n"), *ClassCPPName);
if (bOnlyHasEditorFields)
{
OutGeneratedCPPText.Logf(TEXT("#endif // WITH_EDITORONLY_DATA\r\n"));
}
FString HeaderMacroName = ConstructorsMacroPrefix + TEXT("_FIELDNOTIFY");
if (bHasEditorFields)
{
OutGeneratedHeaderText.Logf(TEXT("#if WITH_EDITORONLY_DATA\r\n"));
WriteMacro(OutGeneratedHeaderText, HeaderMacroName, EditorHeaderStringBuilders);
OutGeneratedHeaderText.Logf(TEXT("#else //WITH_EDITORONLY_DATA\r\n"));
WriteMacro(OutGeneratedHeaderText, HeaderMacroName, RuntimeHeaderStringBuilders);
OutGeneratedHeaderText.Logf(TEXT("#endif // WITH_EDITORONLY_DATA\r\n"));
}
else
{
WriteMacro(OutGeneratedHeaderText, HeaderMacroName, RuntimeHeaderStringBuilders);
}
StandardUObjectConstructorsMacroCall.Logf(TEXT("\t%s\r\n"), *HeaderMacroName);
EnhancedUObjectConstructorsMacroCall.Logf(TEXT("\t%s\r\n"), *HeaderMacroName);
}
}
/**
* Exports the methods which trigger UnrealScript events and delegates.
*
* @param CallbackFunctions the functions to export
*/
void FNativeClassHeaderGenerator::ExportCallbackFunctions(
FOutputDevice& OutGeneratedHeaderText,
FOutputDevice& OutCpp,
TSet<FString>& OutFwdDecls,
const TArray<FUnrealFunctionDefinitionInfo*>& CallbackFunctions,
const TCHAR* CallbackWrappersMacroName,
EExportCallbackType ExportCallbackType,
const TCHAR* APIString
)
{
FUHTStringBuilder RPCWrappers;
FMacroBlockEmitter OutCppEditorOnly(OutCpp, TEXT("WITH_EDITOR"));
for (FUnrealFunctionDefinitionInfo* FunctionDef : CallbackFunctions)
{
// Never expecting to export delegate functions this way
check(!FunctionDef->HasAnyFunctionFlags(FUNC_Delegate));
const FFuncInfo& FunctionData = FunctionDef->GetFunctionData();
FString FunctionName = FunctionDef->GetName();
FUnrealClassDefinitionInfo& ClassDef = UHTCastChecked<FUnrealClassDefinitionInfo>(FunctionDef->GetOuter());
const FString ClassName = ClassDef.GetAlternateNameCPP();
if (FunctionDef->HasAnyFunctionFlags(FUNC_NetResponse))
{
// Net response functions don't go into the VM
continue;
}
const bool bIsEditorOnly = FunctionDef->HasAnyFunctionFlags(FUNC_EditorOnly);
OutCppEditorOnly(bIsEditorOnly);
const bool bWillBeProgrammerTyped = FunctionName == FunctionData.MarshallAndCallName;
// Emit the declaration if the programmer isn't responsible for declaring this wrapper
if (!bWillBeProgrammerTyped)
{
// export the line that looks like: int32 Main(const FString& Parms)
ExportNativeFunctionHeader(RPCWrappers, OutFwdDecls, *FunctionDef, FunctionData, EExportFunctionType::Event, EExportFunctionHeaderStyle::Declaration, nullptr, APIString);
RPCWrappers.Log(TEXT(";\r\n"));
RPCWrappers.Log(TEXT("\r\n"));
}
FString FunctionNameName;
if (ExportCallbackType != EExportCallbackType::Interface)
{
FunctionNameName = FString::Printf(TEXT("NAME_%s_%s"), *ClassName, *FunctionName);
OutCpp.Logf(TEXT("\tstatic FName %s = FName(TEXT(\"%s\"));" LINE_TERMINATOR_ANSI), *FunctionNameName, *FunctionName);
}
// Emit the thunk implementation
ExportNativeFunctionHeader(OutCpp, OutFwdDecls, *FunctionDef, FunctionData, EExportFunctionType::Event, EExportFunctionHeaderStyle::Definition, nullptr, APIString);
FParmsAndReturnProperties Parameters = GetFunctionParmsAndReturn(*FunctionDef);
if (ExportCallbackType != EExportCallbackType::Interface)
{
WriteEventFunctionPrologue(OutCpp, /*Indent=*/ 1, Parameters, ClassDef, *FunctionName);
{
// Cast away const just in case, because ProcessEvent isn't const
OutCpp.Logf(
TEXT("\t\t%sProcessEvent(FindFunctionChecked(%s),%s);\r\n"),
(FunctionDef->HasAllFunctionFlags(FUNC_Const)) ? *FString::Printf(TEXT("const_cast<%s*>(this)->"), *ClassName) : TEXT(""),
*FunctionNameName,
Parameters.HasParms() ? TEXT("&Parms") : TEXT("NULL")
);
}
WriteEventFunctionEpilogue(OutCpp, /*Indent=*/ 1, Parameters);
}
else
{
OutCpp.Log(LINE_TERMINATOR);
OutCpp.Log(TEXT("\t{" LINE_TERMINATOR_ANSI));
// assert if this is ever called directly
OutCpp.Logf(TEXT("\t\tcheck(0 && \"Do not directly call Event functions in Interfaces. Call Execute_%s instead.\");" LINE_TERMINATOR_ANSI), *FunctionName);
// satisfy compiler if it's expecting a return value
if (Parameters.Return)
{
FString EventParmStructName = GetEventStructParamsName(ClassDef, *FunctionName);
OutCpp.Logf(TEXT("\t\t%s Parms;" LINE_TERMINATOR_ANSI), *EventParmStructName);
OutCpp.Log(TEXT("\t\treturn Parms.ReturnValue;" LINE_TERMINATOR_ANSI));
}
OutCpp.Log(TEXT("\t}" LINE_TERMINATOR_ANSI));
}
}
WriteMacro(OutGeneratedHeaderText, CallbackWrappersMacroName, RPCWrappers);
}
/**
* Determines if the property has alternate export text associated with it and if so replaces the text in PropertyText with the
* alternate version. (for example, structs or properties that specify a native type using export-text). Should be called immediately
* after ExportCppDeclaration()
*
* @param Prop the property that is being exported
* @param PropertyText the string containing the text exported from ExportCppDeclaration
*/
void FNativeClassHeaderGenerator::ApplyAlternatePropertyExportText(FUnrealPropertyDefinitionInfo& PropertyDef, FUHTStringBuilder& PropertyText, EExportingState ExportingState)
{
const FPropertyBase& PropertyBase = PropertyDef.GetPropertyBase();
if (FUnrealEnumDefinitionInfo* EnumDef = PropertyBase.AsEnum())
{
return;
}
if (ExportingState == EExportingState::TypeEraseDelegates)
{
if (PropertyBase.Type == CPT_Delegate || PropertyBase.Type == CPT_MulticastDelegate)
{
FString Original = PropertyDef.GetCPPType();
const TCHAR* PlaceholderOfSameSizeAndAlignemnt;
if (PropertyBase.Type == CPT_Delegate)
{
PlaceholderOfSameSizeAndAlignemnt = TEXT("FScriptDelegate");
}
else
{
PlaceholderOfSameSizeAndAlignemnt = TEXT("FMulticastScriptDelegate");
}
PropertyText.ReplaceInline(*Original, PlaceholderOfSameSizeAndAlignemnt, ESearchCase::CaseSensitive);
}
}
}
static void AddIncludeForType(const FUnrealTypeDefinitionInfo* PropertyTypeDef, TArray<FString>& RelativeIncludes)
{
if (UHTCast<FUnrealScriptStructDefinitionInfo>(PropertyTypeDef) != nullptr)
{
if (PropertyTypeDef->HasSource() && !PropertyTypeDef->GetUnrealSourceFile().IsNoExportTypes())
{
FString Header = GetBuildPath(PropertyTypeDef->GetUnrealSourceFile());
RelativeIncludes.AddUnique(MoveTemp(Header));
}
}
}
static void AddIncludeForProperty(const TSharedRef<FUnrealPropertyDefinitionInfo>& PropertyDef, TArray<FString>& RelativeIncludes)
{
const FPropertyBase& PropertyBase = PropertyDef->GetPropertyBase();
AddIncludeForType(PropertyBase.TypeDef, RelativeIncludes);
if (PropertyBase.MapKeyProp != nullptr)
{
AddIncludeForType(PropertyBase.MapKeyProp->TypeDef, RelativeIncludes);
}
}
bool FNativeClassHeaderGenerator::WriteSource(const FManifestModule& Module, FGeneratedFileInfo& FileInfo, const FString& InBodyText, FUnrealSourceFile* InSourceFile, const TSet<FString>& InCrossModuleReferences, const EExportClassOutFlags& ExportFlags)
{
// Collect the includes if this is from a source file
TArray<FString> RelativeIncludes;
if (InSourceFile)
{
if (EnumHasAnyFlags(ExportFlags, EExportClassOutFlags::NeedsFastArrayHeaders))
{
RelativeIncludes.Add(FString(TEXT("Net/Serialization/FastArraySerializerImplementation.h")));
}
bool bAddedStructuredArchiveFromArchiveHeader = false;
bool bAddedArchiveUObjectFromStructuredArchiveHeader = false;
// We need to include the headers that declare any types that aren't pointers.
// We can't rely on the original header that generates this cpp to include the
// headers because it could be forward declaring the types.
for (const TSharedRef<FUnrealTypeDefinitionInfo>& TypeDef : InSourceFile->GetDefinedTypes())
{
if (FUnrealStructDefinitionInfo* Struct = TypeDef->AsStruct())
{
// Functions
for (const TSharedRef<FUnrealStructDefinitionInfo>& FunctionDef : Struct->GetFunctions())
{
for (const TSharedRef<FUnrealPropertyDefinitionInfo>& PropertyDef : FunctionDef->GetProperties())
{
AddIncludeForProperty(PropertyDef, RelativeIncludes);
}
}
// Properties
for (const TSharedRef<FUnrealPropertyDefinitionInfo>& PropertyDef : Struct->GetProperties())
{
AddIncludeForProperty(PropertyDef, RelativeIncludes);
}
}
if (FUnrealClassDefinitionInfo* ClassDef = TypeDef->AsClass())
{
FUnrealClassDefinitionInfo* ClassWithin = ClassDef->GetClassWithin();
if (ClassWithin && ClassWithin->HasSource() && !ClassWithin->GetUnrealSourceFile().IsNoExportTypes())
{
FString Header = GetBuildPath(ClassWithin->GetUnrealSourceFile());
RelativeIncludes.AddUnique(MoveTemp(Header));
}
if (!bAddedStructuredArchiveFromArchiveHeader && ClassDef->GetArchiveType() == ESerializerArchiveType::StructuredArchiveRecord)
{
RelativeIncludes.AddUnique(TEXT("Serialization/StructuredArchive.h"));
bAddedStructuredArchiveFromArchiveHeader = true;
}
if (!bAddedArchiveUObjectFromStructuredArchiveHeader && ClassDef->GetArchiveType() == ESerializerArchiveType::Archive)
{
RelativeIncludes.AddUnique(TEXT("Serialization/ArchiveUObjectFromStructuredArchive.h"));
bAddedArchiveUObjectFromStructuredArchiveHeader = true;
}
}
}
RelativeIncludes.Sort();
// Add the source header file to the top of the list
FString ModuleRelativeFilename = InSourceFile->GetFilename();
ConvertToBuildIncludePath(Module, ModuleRelativeFilename);
RelativeIncludes.Remove(ModuleRelativeFilename);
RelativeIncludes.EmplaceAt(0, MoveTemp(ModuleRelativeFilename));
}
FUHTStringBuilder FileText;
FileText.Log(HeaderCopyright);
FileText.Log(RequiredCPPIncludes);
for (const FString& RelativeInclude : RelativeIncludes)
{
FileText.Logf(TEXT("#include \"%s\"\r\n"), *RelativeInclude);
}
FileText.Log(DisableDeprecationWarnings);
FString CleanFilename = FPaths::GetCleanFilename(FileInfo.GetFilename());
CleanFilename.ReplaceInline(TEXT(".gen.cpp"), TEXT(""), ESearchCase::CaseSensitive);
CleanFilename.ReplaceInline(TEXT("."), TEXT("_"), ESearchCase::CaseSensitive);
FileText.Logf(TEXT("void EmptyLinkFunctionForGeneratedCode%s() {}" LINE_TERMINATOR_ANSI), *CleanFilename);
if (InCrossModuleReferences.Num() > 0)
{
TArray<const FString*> Sorted;
Sorted.Reserve(InCrossModuleReferences.Num());
for (const FString& Ref : InCrossModuleReferences)
{
Sorted.Add(&Ref);
}
Sorted.Sort();
FileText.Logf(TEXT("// Cross Module References\r\n"));
for (const FString* Ref : Sorted)
{
FileText.Log(**Ref);
}
FileText.Logf(TEXT("// End Cross Module References\r\n"));
}
FileText.Log(*InBodyText);
FileText.Log(EnableDeprecationWarnings);
return SaveHeaderIfChanged(FileInfo, MoveTemp(FileText));
}
// Constructor.
FNativeClassHeaderGenerator::FNativeClassHeaderGenerator(
FUnrealPackageDefinitionInfo& InPackageDef)
: PackageDef(InPackageDef)
{}
const FString& FNativeClassHeaderGenerator::GetAPIString() const
{
return PackageDef.GetAPI();
}
bool FNativeClassHeaderGenerator::LoadSourceFile(FGeneratedCPP& GeneratedCPP)
{
const FManifestModule& Module = GeneratedCPP.PackageDef.GetModule();
FUnrealSourceFile& SourceFile = GeneratedCPP.SourceFile;
if (!SourceFile.ShouldExport())
{
return false;
}
FString ModuleRelativeFilename = SourceFile.GetFilename();
ConvertToBuildIncludePath(Module, ModuleRelativeFilename);
FString StrippedName = FPaths::GetBaseFilename(MoveTemp(ModuleRelativeFilename));
FString HeaderPath = (Module.GeneratedIncludeDirectory / StrippedName) + TEXT(".generated.h");
FString GeneratedSourceFilename = (Module.GeneratedIncludeDirectory / StrippedName) + TEXT(".gen.cpp");
if (bGoWide)
{
GeneratedCPP.Header.StartLoad(MoveTemp(HeaderPath));
GeneratedCPP.Source.StartLoad(MoveTemp(GeneratedSourceFilename));
}
else
{
GeneratedCPP.Header.Load(MoveTemp(HeaderPath));
GeneratedCPP.Source.Load(MoveTemp(GeneratedSourceFilename));
}
return true;
}
void FNativeClassHeaderGenerator::GenerateSourceFile(FGeneratedCPP& GeneratedCPP)
{
FResults::Try([&GeneratedCPP]()
{
FUnrealPackageDefinitionInfo& PackageDefLcl = GeneratedCPP.PackageDef;
const FManifestModule& Module = PackageDefLcl.GetModule();
const FNativeClassHeaderGenerator Generator(PackageDefLcl);
FUnrealSourceFile& SourceFile = GeneratedCPP.SourceFile;
FUHTStringBuilder& GeneratedFunctionDeclarations = GeneratedCPP.GeneratedFunctionDeclarations;
FUHTStringBuilder& GeneratedHeaderText = GeneratedCPP.Header.GetGeneratedBody();
FUHTStringBuilder& GeneratedCPPText = GeneratedCPP.Source.GetGeneratedBody();
FScopedDurationTimer SourceTimer(SourceFile.GetTime(ESourceFileTime::Generate));
FReferenceGatherers ReferenceGatherers(&GeneratedCPP.CrossModuleReferences, GeneratedCPP.ForwardDeclarations);
TArray<FUnrealFieldDefinitionInfo*> Types;
SourceFile.GetScope()->GatherTypes(Types);
// Make sure that all the types have a definition range.
for (FUnrealFieldDefinitionInfo* TypeDef : Types)
{
TypeDef->ValidateDefinitionRange();
}
// Sort by the end of the definition range. Since classes can contain delegates, we can't use the definition line
// since that will place the class ahead of the delegate.
Types.StableSort([](const FUnrealFieldDefinitionInfo& Lhs, const FUnrealFieldDefinitionInfo& Rhs)
{
return Lhs.GetDefinitionRange().End < Rhs.GetDefinitionRange().End;
}
);
TArray<FUnrealFieldDefinitionInfo*> Singletons;
Singletons.Reserve(Types.Num());
TArray<FUnrealEnumDefinitionInfo*> EnumRegs;
EnumRegs.Reserve(Types.Num());
TArray<FUnrealScriptStructDefinitionInfo*> ScriptStructRegs;
ScriptStructRegs.Reserve(Types.Num());
TArray<FUnrealClassDefinitionInfo*> ClassRegs;
ClassRegs.Reserve(Types.Num());
const FString FileDefineName = SourceFile.GetFileDefineName();
const FString& StrippedFilename = SourceFile.GetStrippedFilename();
GeneratedHeaderText.Logf(
TEXT("#ifdef %s" LINE_TERMINATOR_ANSI
"#error \"%s.generated.h already included, missing '#pragma once' in %s.h\"" LINE_TERMINATOR_ANSI
"#endif" LINE_TERMINATOR_ANSI
"#define %s" LINE_TERMINATOR_ANSI
LINE_TERMINATOR_ANSI),
*FileDefineName, *StrippedFilename, *StrippedFilename, *FileDefineName);
for (FUnrealFieldDefinitionInfo* FieldDef : Types)
{
if (FUnrealEnumDefinitionInfo* EnumDef = UHTCast<FUnrealEnumDefinitionInfo>(FieldDef))
{
// Is this ever not the case?
if (EnumDef->GetOuter()->GetObject()->IsA(UPackage::StaticClass()))
{
GeneratedFunctionDeclarations.Log(EnumDef->GetExternDecl(true));
Generator.ExportGeneratedEnumInitCode(GeneratedCPPText, ReferenceGatherers, SourceFile, *EnumDef);
EnumRegs.Add(EnumDef);
}
}
else if (FUnrealScriptStructDefinitionInfo* ScriptStructDef = UHTCast<FUnrealScriptStructDefinitionInfo>(FieldDef))
{
if (ScriptStructDef->HasAnyStructFlags(STRUCT_NoExport))
{
Singletons.Add(ScriptStructDef);
}
GeneratedFunctionDeclarations.Log(ScriptStructDef->GetExternDecl(true));
Generator.ExportGeneratedStructBodyMacros(GeneratedHeaderText, GeneratedCPPText, ReferenceGatherers, SourceFile, *ScriptStructDef, GeneratedCPP.ExportFlags);
if (ScriptStructDef->HasAnyStructFlags(STRUCT_Native))
{
ScriptStructRegs.Add(ScriptStructDef);
}
}
else if (FUnrealFunctionDefinitionInfo* FunctionDef = UHTCast<FUnrealFunctionDefinitionInfo>(FieldDef))
{
Singletons.Add(FunctionDef);
GeneratedFunctionDeclarations.Log(FunctionDef->GetExternDecl(true));
Generator.ExportDelegateDeclaration(GeneratedCPPText, ReferenceGatherers, SourceFile, *FunctionDef);
Generator.ExportDelegateDefinition(GeneratedHeaderText, ReferenceGatherers, SourceFile, *FunctionDef);
}
else if (FUnrealClassDefinitionInfo* ClassDef = UHTCast<FUnrealClassDefinitionInfo>(FieldDef))
{
if (!ClassDef->HasAnyClassFlags(CLASS_Intrinsic))
{
Generator.ExportClassFromSourceFileInner(GeneratedHeaderText, GeneratedCPPText, GeneratedFunctionDeclarations, ReferenceGatherers, *ClassDef, SourceFile, GeneratedCPP.ExportFlags);
ClassRegs.Add(ClassDef);
}
}
}
GeneratedHeaderText.Log(TEXT("#undef CURRENT_FILE_ID\r\n"));
GeneratedHeaderText.Logf(TEXT("#define CURRENT_FILE_ID %s\r\n\r\n\r\n"), *SourceFile.GetFileId());
for (FUnrealFieldDefinitionInfo* FieldDef : Types)
{
if (FUnrealEnumDefinitionInfo* EnumDef = UHTCast<FUnrealEnumDefinitionInfo>(FieldDef))
{
Generator.ExportEnum(GeneratedHeaderText, *EnumDef);
}
}
// Generate the single registration method
if (!EnumRegs.IsEmpty() || !ScriptStructRegs.IsEmpty() || !ClassRegs.IsEmpty())
{
static const TCHAR* Prefix = TEXT("Z_CompiledInDeferFile_");
FString StaticsName = FString::Printf(TEXT("%s%s_Statics"), Prefix, *SourceFile.GetFileId());
GeneratedCPPText.Logf(TEXT("\tstruct %s\r\n"), *StaticsName);
GeneratedCPPText.Log(TEXT("\t{\r\n"));
size_t EditorOnlyEnumCount = 0;
for (FUnrealEnumDefinitionInfo* EnumDef : EnumRegs)
{
if (EnumDef->IsEditorOnly())
{
++EditorOnlyEnumCount;
}
}
bool bAllEnumsEditorOnly = !EnumRegs.IsEmpty() && EditorOnlyEnumCount == EnumRegs.Num();
if (!EnumRegs.IsEmpty())
{
if (bAllEnumsEditorOnly)
{
GeneratedCPPText.Log(TEXT("#if WITH_EDITORONLY_DATA\r\n"));
}
GeneratedCPPText.Log(TEXT("\t\tstatic const FEnumRegisterCompiledInInfo EnumInfo[];\r\n"));
if (bAllEnumsEditorOnly)
{
GeneratedCPPText.Log(TEXT("#endif\r\n"));
}
}
if (!ScriptStructRegs.IsEmpty())
{
GeneratedCPPText.Log(TEXT("\t\tstatic const FStructRegisterCompiledInInfo ScriptStructInfo[];\r\n"));
}
if (!ClassRegs.IsEmpty())
{
GeneratedCPPText.Log(TEXT("\t\tstatic const FClassRegisterCompiledInInfo ClassInfo[];\r\n"));
}
GeneratedCPPText.Log(TEXT("\t};\r\n"));
int32 CombinedHash = -1;
if (!EnumRegs.IsEmpty())
{
if (bAllEnumsEditorOnly)
{
GeneratedCPPText.Log(TEXT("#if WITH_EDITORONLY_DATA\r\n"));
}
GeneratedCPPText.Logf(TEXT("\tconst FEnumRegisterCompiledInInfo %s::EnumInfo[] = {\r\n"), *StaticsName);
for (FUnrealEnumDefinitionInfo* EnumDef : EnumRegs)
{
if (!bAllEnumsEditorOnly && EnumDef->IsEditorOnly())
{
GeneratedCPPText.Log(TEXT("#if WITH_EDITORONLY_DATA\r\n"));
}
const FString EnumNameCpp = EnumDef->GetName();
GeneratedCPPText.Logf(TEXT("\t\t{ %s_StaticEnum, TEXT(\"%s\"), &Z_Registration_Info_UEnum_%s, CONSTRUCT_RELOAD_VERSION_INFO(FEnumReloadVersionInfo, %uU) },\r\n"),
*EnumNameCpp,
*EnumNameCpp,
*EnumNameCpp,
EnumDef->GetHash(*EnumDef));
if (!bAllEnumsEditorOnly && EnumDef->IsEditorOnly())
{
GeneratedCPPText.Log(TEXT("#endif\r\n"));
}
CombinedHash = HashCombine(CombinedHash, EnumDef->GetHash(*EnumDef));
}
GeneratedCPPText.Logf(TEXT("\t};\r\n"));
if (bAllEnumsEditorOnly)
{
GeneratedCPPText.Log(TEXT("#endif\r\n"));
}
}
if (!ScriptStructRegs.IsEmpty())
{
GeneratedCPPText.Logf(TEXT("\tconst FStructRegisterCompiledInInfo %s::ScriptStructInfo[] = {\r\n"), *StaticsName);
for (FUnrealScriptStructDefinitionInfo* ScriptStructDef : ScriptStructRegs)
{
const FString StructNameCPP = ScriptStructDef->GetAlternateNameCPP();
GeneratedCPPText.Logf(TEXT("\t\t{ %s::StaticStruct, Z_Construct_UScriptStruct_%s_Statics::NewStructOps, TEXT(\"%s\"), &Z_Registration_Info_UScriptStruct_%s, CONSTRUCT_RELOAD_VERSION_INFO(FStructReloadVersionInfo, sizeof(%s), %uU) },\r\n"),
*StructNameCPP,
*StructNameCPP,
*ScriptStructDef->GetName(),
*ScriptStructDef->GetName(),
*StructNameCPP,
ScriptStructDef->GetHash(*ScriptStructDef));
CombinedHash = HashCombine(CombinedHash, ScriptStructDef->GetHash(*ScriptStructDef));
}
GeneratedCPPText.Logf(TEXT("\t};\r\n"));
}
if (!ClassRegs.IsEmpty())
{
GeneratedCPPText.Logf(TEXT("\tconst FClassRegisterCompiledInInfo %s::ClassInfo[] = {\r\n"), *StaticsName);
for (FUnrealClassDefinitionInfo* ClassDef : ClassRegs)
{
const FString ClassNameCPP = ClassDef->GetAlternateNameCPP();
GeneratedCPPText.Logf(TEXT("\t\t{ Z_Construct_UClass_%s, %s::StaticClass, TEXT(\"%s\"), &Z_Registration_Info_UClass_%s, CONSTRUCT_RELOAD_VERSION_INFO(FClassReloadVersionInfo, sizeof(%s), %uU) },\r\n"),
*ClassNameCPP,
*ClassNameCPP,
*ClassNameCPP,
*ClassNameCPP,
*ClassNameCPP,
ClassDef->GetHash(*ClassDef));
CombinedHash = HashCombine(CombinedHash, ClassDef->GetHash(*ClassDef));
}
GeneratedCPPText.Logf(TEXT("\t};\r\n"));
}
auto FormatArray = [&StaticsName](bool bIsEmpty, bool bAllEditorOnlyData, const FString& Text)
{
if (bAllEditorOnlyData)
{
return FString::Printf(TEXT("IF_WITH_EDITORONLY_DATA(%s::%s, nullptr), IF_WITH_EDITORONLY_DATA(UE_ARRAY_COUNT(%s::%s), 0)"), *StaticsName, *Text, *StaticsName, *Text);
}
else if (!bIsEmpty)
{
return FString::Printf(TEXT("%s::%s, UE_ARRAY_COUNT(%s::%s)"), *StaticsName, *Text, *StaticsName, *Text);
}
else
{
return FString(TEXT("nullptr, 0"));
}
};
// We add the hash to the name to generate a unique version of the name so that LiveCoding's default "only invoke static constructor once"
// is avoided when elements change.
GeneratedCPPText.Logf(TEXT("\tstatic FRegisterCompiledInInfo %s%s_%u(TEXT(\"%s\"),\r\n\t\t%s,\r\n\t\t%s,\r\n\t\t%s);\r\n"),
Prefix,
*SourceFile.GetFileId(),
CombinedHash,
*PackageDefLcl.GetName(),
*FormatArray(ClassRegs.IsEmpty(), false, TEXT("ClassInfo")),
*FormatArray(ScriptStructRegs.IsEmpty(), false, TEXT("ScriptStructInfo")),
*FormatArray(EnumRegs.IsEmpty(), bAllEnumsEditorOnly, TEXT("EnumInfo"))
);
}
if (Singletons.Num())
{
SourceFile.GetSingletons().Append(MoveTemp(Singletons));
}
// Sort the forward declarations to make them more stable
TArray<FString> Lines;
GeneratedFunctionDeclarations.ParseIntoArrayLines(Lines);
TSet<FString> Unique;
for (const FString& Line : Lines)
{
Unique.Add(Line);
}
Lines.Empty();
for (const FString& Line : Unique)
{
Lines.Add(Line);
}
Lines.Sort();
GeneratedFunctionDeclarations.Empty();
for (const FString& Line : Lines)
{
GeneratedFunctionDeclarations.Logf(TEXT("%s\r\n"), *Line);
}
if (bIncludeDebugOutput)
{
GeneratedCPPText.Logf(TEXT("#if 0\r\n"));
GeneratedCPPText.Log(GeneratedFunctionDeclarations);
GeneratedCPPText.Logf(TEXT("#endif\r\n"));
}
}
);
}
void FNativeClassHeaderGenerator::WriteSourceFile(FGeneratedCPP& GeneratedCPP)
{
FResults::Try([&GeneratedCPP]()
{
FUnrealPackageDefinitionInfo& PackageDefLcl = GeneratedCPP.PackageDef;
const FManifestModule& Module = PackageDefLcl.GetModule();
FUnrealSourceFile& SourceFile = GeneratedCPP.SourceFile;
FUHTStringBuilder& GeneratedHeaderText = GeneratedCPP.Header.GetGeneratedBody();
FUHTStringBuilder& GeneratedCPPText = GeneratedCPP.Source.GetGeneratedBody();
FScopedDurationTimer SourceTimer(SourceFile.GetTime(ESourceFileTime::Generate));
GeneratedCPP.Source.GenerateBodyHash();
TSet<FString> AdditionalHeaders;
if (EnumHasAnyFlags(GeneratedCPP.ExportFlags, EExportClassOutFlags::NeedsPushModelHeaders))
{
AdditionalHeaders.Add(FString(TEXT("Net/Core/PushModel/PushModelMacros.h")));
}
bool bHasChanged = WriteHeader(GeneratedCPP.Header, GeneratedHeaderText, AdditionalHeaders, GeneratedCPP.ForwardDeclarations);
WriteSource(Module, GeneratedCPP.Source, GeneratedCPPText, &SourceFile, GeneratedCPP.CrossModuleReferences, GeneratedCPP.ExportFlags);
SourceFile.SetGeneratedFilename(MoveTemp(GeneratedCPP.Header.GetFilename()));
SourceFile.SetHasChanged(bHasChanged);
}
);
}
void FNativeClassHeaderGenerator::GenerateSourceFiles(
TArray<FGeneratedCPP>& GeneratedCPPs
)
{
if (bGoWide)
{
TSet<FUnrealSourceFile*> Includes;
Includes.Reserve(GeneratedCPPs.Num());
FGraphEventArray TempTasks;
TempTasks.Reserve(3);
for (FGeneratedCPP& GeneratedCPP : GeneratedCPPs)
{
if (!LoadSourceFile(GeneratedCPP))
{
continue;
}
TempTasks.Reset();
GeneratedCPP.Header.AddLoadTaskRef(TempTasks);
GeneratedCPP.Source.AddLoadTaskRef(TempTasks);
auto GenerateSource = [&GeneratedCPP]()
{
GenerateSourceFile(GeneratedCPP);
};
auto WriteGenerated = [&GeneratedCPP]()
{
WriteSourceFile(GeneratedCPP);
};
Includes.Reset();
for (FHeaderProvider& Header : GeneratedCPP.SourceFile.GetIncludes())
{
if (FUnrealSourceFile* Include = Header.Resolve(GeneratedCPP.SourceFile))
{
Includes.Add(Include);
}
}
// Our generation must wait on all of our includes generation to complete
TempTasks.Reset();
for (FUnrealSourceFile* Include : Includes)
{
FGeneratedCPP& IncludeCPP = GeneratedCPPs[Include->GetOrderedIndex()];
IncludeCPP.AddGenerateTaskRef(TempTasks);
}
GeneratedCPP.GenerateTaskRef = FFunctionGraphTask::CreateAndDispatchWhenReady(MoveTemp(GenerateSource), TStatId(), &TempTasks);
// Our compare and save must wait on generation and loading of the current header and source
TempTasks.Reset();
TempTasks.Add(GeneratedCPP.GenerateTaskRef);
GeneratedCPP.Header.AddLoadTaskRef(TempTasks);
GeneratedCPP.Source.AddLoadTaskRef(TempTasks);
GeneratedCPP.ExportTaskRef = FFunctionGraphTask::CreateAndDispatchWhenReady(MoveTemp(WriteGenerated), TStatId(), &TempTasks);
}
// When this task fires, all of the exports for this package have completed
FGraphEventArray ExportSourceTasks;
ExportSourceTasks.Reserve(GeneratedCPPs.Num());
for (FGeneratedCPP& GeneratedCPP : GeneratedCPPs)
{
GeneratedCPP.AddExportTaskRef(ExportSourceTasks);
}
// This is strange, but flushing the log can take a long time. Without an explicit flush, we were getting a long stall in the UE_LOG message
// during the detection of script plugins. By doing it here, the flush should easily complete during code generation.
GLog->FlushThreadedLogs(EOutputDeviceRedirectorFlushOptions::Async);
FTaskGraphInterface::Get().WaitUntilTasksComplete(ExportSourceTasks);
}
else
{
for (FGeneratedCPP& GeneratedCPP : GeneratedCPPs)
{
if (!LoadSourceFile(GeneratedCPP))
{
continue;
}
GenerateSourceFile(GeneratedCPP);
WriteSourceFile(GeneratedCPP);
}
}
FResults::WaitForErrorTasks();
}
void FNativeClassHeaderGenerator::Generate(
FUnrealPackageDefinitionInfo& PackageDef,
TArray<FGeneratedCPP>& GeneratedCPPs
)
{
UPackage* Package = PackageDef.GetPackage();
FString PackageName = FPackageName::GetShortName(Package);
const FManifestModule& Module = PackageDef.GetModule();
const bool bWriteClassesH = PackageDef.GetWriteClassesH();
const bool bAllowSaveExportedHeaders = Module.SaveExportedHeaders;
FGraphEventArray TempTasks;
TempTasks.Reserve(3);
// Create a list of all exported files
TArray<FGeneratedCPP*> Exported;
Exported.Reserve(GeneratedCPPs.Num());
for (FGeneratedCPP& GeneratedCPP : GeneratedCPPs)
{
if (&GeneratedCPP.PackageDef == &PackageDef && GeneratedCPP.SourceFile.ShouldExport())
{
Exported.Emplace(&GeneratedCPP);
}
}
// Create a sorted list of the exported source files so that the generated code is consistent
TArray<FGeneratedCPP*> ExportedSorted(Exported);
ExportedSorted.Sort([](const FGeneratedCPP& Lhs, const FGeneratedCPP& Rhs) { return Lhs.SourceFile.GetFilename() < Rhs.SourceFile.GetFilename(); });
// Generate the package tasks
FGraphEventArray PackageTasks;
PackageTasks.Reserve(2);
// If we are generated the classes H file, start the preload process for the H file
TArray<FGeneratedFileInfo> GeneratedPackageFileInfo;
GeneratedPackageFileInfo.Reserve(2);
if (bWriteClassesH)
{
// Start loading the original header file for comparison
FGeneratedFileInfo& GeneratedFileInfo = GeneratedPackageFileInfo[GeneratedPackageFileInfo.Add(FGeneratedFileInfo(bAllowSaveExportedHeaders))];
FString ClassesHeaderPath = Module.GeneratedIncludeDirectory / (PackageName + TEXT("Classes.h"));
GeneratedFileInfo.StartLoad(MoveTemp(ClassesHeaderPath));
auto ClasssesH = [&PackageDef, &GeneratedFileInfo, &ExportedSorted]()
{
FResults::Try([&PackageDef, &GeneratedFileInfo, &ExportedSorted]()
{
const FManifestModule& Module = PackageDef.GetModule();
// Write the classes and enums header prefixes.
FUHTStringBuilder ClassesHText;
ClassesHText.Log(HeaderCopyright);
ClassesHText.Log(TEXT("#pragma once\r\n"));
ClassesHText.Log(TEXT("\r\n"));
ClassesHText.Log(TEXT("\r\n"));
// Fill with the rest source files from this package.
TSet<FUnrealSourceFile*> PublicHeaderGroupIncludes;
for (FGeneratedCPP* GeneratedCPP : ExportedSorted)
{
if (GeneratedCPP->SourceFile.IsPublic())
{
PublicHeaderGroupIncludes.Add(&GeneratedCPP->SourceFile);
}
}
for (TSharedRef<FUnrealSourceFile>& SourceFile : PackageDef.GetAllSourceFiles())
{
if (SourceFile->IsPublic())
{
PublicHeaderGroupIncludes.Add(&*SourceFile);
}
}
// Make the public header list stable regardless of the order the files are parsed.
TArray<FString> BuildPaths;
BuildPaths.Reserve(PublicHeaderGroupIncludes.Num());
for (FUnrealSourceFile* SourceFile : PublicHeaderGroupIncludes)
{
BuildPaths.Emplace(GetBuildPath(*SourceFile));
}
BuildPaths.Sort();
for (const FString& BuildPath : BuildPaths)
{
ClassesHText.Logf(TEXT("#include \"%s\"" LINE_TERMINATOR_ANSI), *BuildPath);
}
ClassesHText.Log(LINE_TERMINATOR);
// Save the classes header if it has changed.
SaveHeaderIfChanged(GeneratedFileInfo, MoveTemp(ClassesHText));
});
};
TempTasks.Reset();
GeneratedFileInfo.AddLoadTaskRef(TempTasks);
FGraphEventRef GenerateTask = FFunctionGraphTask::CreateAndDispatchWhenReady(MoveTemp(ClasssesH), TStatId(), &TempTasks);
PackageTasks.Add(GenerateTask);
}
// now export the names for the functions in this package
// notice we always export this file (as opposed to only exporting if we have any marked names)
// because there would be no way to know when the file was created otherwise
int32 InitGenIndex = -1;
{
FGeneratedFileInfo& GeneratedFileInfo = GeneratedPackageFileInfo[InitGenIndex = GeneratedPackageFileInfo.Add(FGeneratedFileInfo(bAllowSaveExportedHeaders))];
FString GeneratedSourceFilename = Module.GeneratedIncludeDirectory / FString::Printf(TEXT("%s.init.gen.cpp"), *PackageName);
GeneratedFileInfo.StartLoad(MoveTemp(GeneratedSourceFilename));
auto Functions = [&PackageDef, &GeneratedFileInfo, &ExportedSorted]()
{
FResults::Try([&PackageDef, &GeneratedFileInfo, &ExportedSorted]()
{
const FManifestModule& Module = PackageDef.GetModule();
// Export an include line for each header
FUHTStringBuilder GeneratedFunctionDeclarations;
for (FGeneratedCPP* GeneratedCPP : ExportedSorted)
{
GeneratedFunctionDeclarations.Log(GeneratedCPP->GeneratedFunctionDeclarations);
}
if (GeneratedFunctionDeclarations.Len())
{
FNativeClassHeaderGenerator Generator(PackageDef);
uint32 CombinedHash = 0;
for (FGeneratedCPP* GeneratedCPP : ExportedSorted)
{
uint32 SourceHash = GeneratedCPP->Source.GetGeneratedBodyHash();
if (CombinedHash == 0)
{
// Don't combine in the first case because it keeps GUID backwards compatibility
CombinedHash = SourceHash;
}
else
{
CombinedHash = HashCombine(SourceHash, CombinedHash);
}
}
Generator.ExportGeneratedPackageInitCode(GeneratedFileInfo.GetGeneratedBody(), *GeneratedFunctionDeclarations, ExportedSorted, CombinedHash);
WriteSource(Module, GeneratedFileInfo, GeneratedFileInfo.GetGeneratedBody(), nullptr, TSet<FString>(), EExportClassOutFlags::None);
}
});
};
TempTasks.Reset();
GeneratedFileInfo.AddLoadTaskRef(TempTasks);
FGraphEventRef GenerateTask = FFunctionGraphTask::CreateAndDispatchWhenReady(MoveTemp(Functions), TStatId(), &TempTasks);
PackageTasks.Add(GenerateTask);
}
FTaskGraphInterface::Get().WaitUntilTasksComplete(PackageTasks);
// Collect all of the paths and save tasks
int32 MaxCount = (Exported.Num() * 2) + GeneratedPackageFileInfo.Num();
TSet<FString> PackageHeaderPaths;
TArray<FString> TempHeaderPaths;
FGraphEventArray SaveTasks;
PackageHeaderPaths.Reserve(MaxCount);
TempHeaderPaths.Reserve(MaxCount);
SaveTasks.Reserve(MaxCount);
for (FGeneratedCPP* GeneratedCPP : Exported)
{
if (bAllowSaveExportedHeaders)
{
GeneratedCPP->Header.AddPackageFilename(PackageHeaderPaths);
GeneratedCPP->Source.AddPackageFilename(PackageHeaderPaths);
}
GeneratedCPP->Header.AddTempFilename(TempHeaderPaths);
GeneratedCPP->Source.AddTempFilename(TempHeaderPaths);
GeneratedCPP->Header.AddSaveTaskRef(SaveTasks);
GeneratedCPP->Source.AddSaveTaskRef(SaveTasks);
}
for (FGeneratedFileInfo& GeneratedFileInfo : GeneratedPackageFileInfo)
{
if (bAllowSaveExportedHeaders)
{
GeneratedFileInfo.AddPackageFilename(PackageHeaderPaths);
}
GeneratedFileInfo.AddTempFilename(TempHeaderPaths);
GeneratedFileInfo.AddSaveTaskRef(SaveTasks);
}
// Export all changed headers from their temp files to the .h files
ExportUpdatedHeaders(MoveTemp(PackageName), MoveTemp(TempHeaderPaths), SaveTasks);
// Delete stale *.generated.h files
if (bAllowSaveExportedHeaders)
{
DeleteUnusedGeneratedHeaders(MoveTemp(PackageHeaderPaths));
}
}
TArray<FWildcardString> GSourceWildcards = { TEXT("*.generated.cpp"), TEXT("*.generated.*.cpp"), TEXT("*.gen.cpp"), TEXT("*.gen.*.cpp") };
TArray<FWildcardString> GHeaderWildcards = { TEXT("*.generated.h") };
bool MatchesWildcards(const TArray<FWildcardString>& Wildcards, const TCHAR* Filename)
{
for (const FWildcardString& Wildcard : Wildcards)
{
if (Wildcard.IsMatch(Filename))
{
return true;
}
}
return false;
}
void FNativeClassHeaderGenerator::DeleteUnusedGeneratedHeaders(TSet<FString>&& PackageHeaderPathSet)
{
auto DeleteUnusedGeneratedHeadersTask = [PackageHeaderPathSet = MoveTemp(PackageHeaderPathSet)]()
{
TSet<FString> AllIntermediateFolders;
for (const FString& PackageHeader : PackageHeaderPathSet)
{
FString IntermediatePath = FPaths::GetPath(PackageHeader);
if (AllIntermediateFolders.Contains(IntermediatePath))
{
continue;
}
class FFileVisitor : public IPlatformFile::FDirectoryVisitor
{
public:
const FString& Directory;
const TSet<FString>& PackageHeaderPathSet;
FFileVisitor(const FString& InDirectory, const TSet<FString>& InPackageHeaderPathSet)
: Directory(InDirectory)
, PackageHeaderPathSet(InPackageHeaderPathSet)
{
}
virtual bool Visit(const TCHAR* FileNameOrDirectory, bool bIsDirectory)
{
if (!bIsDirectory)
{
FString Fullpath(FileNameOrDirectory);
if (!PackageHeaderPathSet.Contains(Fullpath))
{
FString Filename = FPaths::GetCleanFilename(Fullpath);
if (MatchesWildcards(GSourceWildcards, *Filename))
{
IFileManager::Get().Delete(*Fullpath);
}
else if (MatchesWildcards(GHeaderWildcards, *Filename))
{
// Is this intrinsic test valid anymore?
FString BaseFilename = FPaths::GetBaseFilename(Filename);
const int32 GeneratedIndex = BaseFilename.Find(TEXT(".generated"), ESearchCase::IgnoreCase, ESearchDir::FromEnd);
const FString ClassName = MoveTemp(BaseFilename).Mid(0, GeneratedIndex);
UClass* IntrinsicClass = FEngineAPI::FindFirstObject<UClass>(*ClassName, EFindFirstObjectOptions::None, ELogVerbosity::Fatal, TEXT("looking for intrinsic class"));
if (!IntrinsicClass || !IntrinsicClass->HasAnyClassFlags(CLASS_Intrinsic))
{
IFileManager::Get().Delete(*Fullpath);
}
}
}
}
return true;
}
};
FFileVisitor Visitor(IntermediatePath, PackageHeaderPathSet);
IFileManager::Get().IterateDirectory(*IntermediatePath, Visitor);
AllIntermediateFolders.Add(MoveTemp(IntermediatePath));
}
};
GAsyncFileTasks.Add(FFunctionGraphTask::CreateAndDispatchWhenReady(MoveTemp(DeleteUnusedGeneratedHeadersTask), TStatId()));
}
FCriticalSection TestCommandLineCS;
bool FNativeClassHeaderGenerator::SaveHeaderIfChanged(FGeneratedFileInfo& FileInfo, FString&& InNewHeaderContents)
{
if (!FileInfo.AllowSaveExportedHeaders())
{
// Return false indicating that the header did not need updating
return false;
}
static bool bTestedCmdLine = false;
if (!bTestedCmdLine)
{
FScopeLock Lock(&TestCommandLineCS);
if (!bTestedCmdLine)
{
const FString& ProjectSavedDir = FPaths::ProjectSavedDir();
if (FParse::Param(FCommandLine::Get(), TEXT("WRITEREF")))
{
const FString ReferenceGeneratedCodePath = ProjectSavedDir / TEXT("ReferenceGeneratedCode/");
bWriteContents = true;
UE_LOG(LogCompile, Log, TEXT("********************************* Writing reference generated code to %s."), *ReferenceGeneratedCodePath);
UE_LOG(LogCompile, Log, TEXT("********************************* Deleting all files in ReferenceGeneratedCode."));
IFileManager::Get().DeleteDirectory(*ReferenceGeneratedCodePath, false, true);
IFileManager::Get().MakeDirectory(*ReferenceGeneratedCodePath);
}
else if (FParse::Param(FCommandLine::Get(), TEXT("VERIFYREF")))
{
const FString ReferenceGeneratedCodePath = ProjectSavedDir / TEXT("ReferenceGeneratedCode/");
const FString VerifyGeneratedCodePath = ProjectSavedDir / TEXT("VerifyGeneratedCode/");
bVerifyContents = true;
UE_LOG(LogCompile, Log, TEXT("********************************* Writing generated code to %s and comparing to %s"), *VerifyGeneratedCodePath, *ReferenceGeneratedCodePath);
UE_LOG(LogCompile, Log, TEXT("********************************* Deleting all files in VerifyGeneratedCode."));
IFileManager::Get().DeleteDirectory(*VerifyGeneratedCodePath, false, true);
IFileManager::Get().MakeDirectory(*VerifyGeneratedCodePath);
}
bTestedCmdLine = true;
}
}
if (bWriteContents || bVerifyContents)
{
// UHT is getting fast enough that we can create an I/O storm in these large directories.
// The lock limits us to writing one file at a time. It doesn't impact performance
// significantly.
static FCriticalSection WritePacer;
const FString& ProjectSavedDir = FPaths::ProjectSavedDir();
const FString CleanFilename = FPaths::GetCleanFilename(FileInfo.GetFilename());
const FString Ref = ProjectSavedDir / TEXT("ReferenceGeneratedCode") / CleanFilename;
if (bWriteContents)
{
FScopeLock Lock(&WritePacer);
bool Written = FFileHelper::SaveStringToFile(InNewHeaderContents, *Ref);
check(Written);
}
else
{
{
FScopeLock Lock(&WritePacer);
const FString Verify = ProjectSavedDir / TEXT("VerifyGeneratedCode") / CleanFilename;
bool Written = FFileHelper::SaveStringToFile(InNewHeaderContents, *Verify);
check(Written);
}
FString RefHeader;
FString Message;
{
SCOPE_SECONDS_COUNTER_UHT(LoadHeaderContentFromFile);
if (!FFileHelper::LoadFileToString(RefHeader, *Ref))
{
Message = FString::Printf(TEXT("********************************* %s appears to be a new generated file."), *CleanFilename);
}
else
{
if (FCString::Strcmp(*InNewHeaderContents, *RefHeader) != 0)
{
Message = FString::Printf(TEXT("********************************* %s has changed."), *CleanFilename);
}
}
}
if (Message.Len())
{
UE_LOG(LogCompile, Log, TEXT("%s"), *Message);
ChangeMessages.AddUnique(MoveTemp(Message));
}
}
}
FString HeaderPathStr = FileInfo.GetFilename();
const FString& OriginalContents = FileInfo.GetOriginalContents();
const bool bHasChanged = OriginalContents.Len() != InNewHeaderContents.Len() || FCString::Strcmp(*OriginalContents, *InNewHeaderContents);
if (bHasChanged)
{
static const bool bFailIfGeneratedCodeChanges = FParse::Param(FCommandLine::Get(), TEXT("FailIfGeneratedCodeChanges"));
if (bFailIfGeneratedCodeChanges)
{
FString ConflictPath = HeaderPathStr + TEXT(".conflict");
FFileHelper::SaveStringToFile(InNewHeaderContents, *ConflictPath);
FResults::SetResult(ECompilationResult::FailedDueToHeaderChange);
FUHTMessage(FileInfo.GetFilename()).Throwf(TEXT("ERROR: '%s': Changes to generated code are not allowed - conflicts written to '%s'"), *HeaderPathStr, *ConflictPath);
}
// save the updated version to a tmp file so that the user can see what will be changing
FString TmpHeaderFilename = GenerateTempHeaderName(HeaderPathStr, false);
auto SaveTempTask = [&FileInfo, TmpHeaderFilename, InNewHeaderContents = MoveTemp(InNewHeaderContents)]()
{
// delete any existing temp file
IFileManager::Get().Delete(*TmpHeaderFilename, false, true);
if (!FFileHelper::SaveStringToFile(InNewHeaderContents, *TmpHeaderFilename))
{
FUHTMessage(FileInfo.GetFilename()).LogWarning(TEXT("Failed to save header export preview: '%s'"), *TmpHeaderFilename);
}
};
FileInfo.SetSaveTaskRef(FFunctionGraphTask::CreateAndDispatchWhenReady(MoveTemp(SaveTempTask), TStatId()));
FileInfo.SetTempFilename(MoveTemp(TmpHeaderFilename));
}
// Remember this header filename to be able to check for any old (unused) headers later.
HeaderPathStr.ReplaceInline(TEXT("\\"), TEXT("/"), ESearchCase::CaseSensitive);
FileInfo.SetPackageFilename(MoveTemp(HeaderPathStr));
return bHasChanged;
}
FString FNativeClassHeaderGenerator::GenerateTempHeaderName( const FString& CurrentFilename, bool bReverseOperation )
{
if (bReverseOperation)
{
FString Reversed = CurrentFilename;
Reversed.RemoveFromEnd(TEXT(".tmp"), ESearchCase::CaseSensitive);
return Reversed;
}
return CurrentFilename + TEXT(".tmp");
}
void FNativeClassHeaderGenerator::ExportUpdatedHeaders(FString&& PackageName, TArray<FString>&& TempHeaderPaths, FGraphEventArray& InTempSaveTasks)
{
// Asynchronously move the headers to the correct locations
if (TempHeaderPaths.Num() > 0)
{
auto MoveHeadersTask = [PackageName = MoveTemp(PackageName), TempHeaderPaths = MoveTemp(TempHeaderPaths)]()
{
ParallelFor(TempHeaderPaths.Num(), [&](int32 Index)
{
const FString& TmpFilename = TempHeaderPaths[Index];
FString Filename = GenerateTempHeaderName(TmpFilename, true);
if (!IFileManager::Get().Move(*Filename, *TmpFilename, true, true))
{
UE_LOG(LogCompile, Error, TEXT("Error exporting %s: couldn't write file '%s'"), *PackageName, *Filename);
}
else
{
UE_LOG(LogCompile, Log, TEXT("Exported updated C++ header: %s"), *Filename);
}
});
};
FTaskGraphInterface::Get().WaitUntilTasksComplete(InTempSaveTasks);
GAsyncFileTasks.Add(FFunctionGraphTask::CreateAndDispatchWhenReady(MoveTemp(MoveHeadersTask), TStatId()));
}
}
/** Get all script plugins based on ini setting */
void GetScriptPlugins(TArray<IScriptGeneratorPluginInterface*>& ScriptPlugins)
{
if (!GManifest.IsGameTarget)
{
UE_LOG(LogCompile, Log, TEXT("Script generator plugins only enabled in game targets."));
}
ScriptPlugins = IModularFeatures::Get().GetModularFeatureImplementations<IScriptGeneratorPluginInterface>(TEXT("ScriptGenerator"));
UE_LOG(LogCompile, Log, TEXT("Found %d script generator plugins."), ScriptPlugins.Num());
// Check if we can use these plugins and initialize them
for (int32 PluginIndex = ScriptPlugins.Num() - 1; PluginIndex >= 0; --PluginIndex)
{
IScriptGeneratorPluginInterface* ScriptGenerator = ScriptPlugins[PluginIndex];
bool bSupportedPlugin = ScriptGenerator->SupportsTarget(GManifest.TargetName);
if (bSupportedPlugin)
{
// Find the right output directory for this plugin base on its target (Engine-side) plugin name.
FString GeneratedCodeModuleName = ScriptGenerator->GetGeneratedCodeModuleName();
const FManifestModule* GeneratedCodeModule = NULL;
FString OutputDirectory;
FString IncludeBase;
for (const FManifestModule& Module : GManifest.Modules)
{
if (Module.Name == GeneratedCodeModuleName)
{
GeneratedCodeModule = &Module;
}
}
if (GeneratedCodeModule)
{
UE_LOG(LogCompile, Log, TEXT("Initializing script generator \'%s\'"), *ScriptGenerator->GetGeneratorName());
ScriptGenerator->Initialize(GManifest.RootLocalPath, GManifest.RootBuildPath, GeneratedCodeModule->GeneratedIncludeDirectory, GeneratedCodeModule->IncludeBase);
}
else
{
// Can't use this plugin
UE_LOG(LogCompile, Log, TEXT("Unable to determine output directory for %s. Cannot export script glue with \'%s\'"), *GeneratedCodeModuleName, *ScriptGenerator->GetGeneratorName());
bSupportedPlugin = false;
}
}
if (!bSupportedPlugin)
{
UE_LOG(LogCompile, Log, TEXT("Script generator \'%s\' not supported for target: %s"), *ScriptGenerator->GetGeneratorName(), *GManifest.TargetName);
ScriptPlugins.RemoveAt(PluginIndex);
}
}
}
/**
* Tries to resolve super classes for classes defined in the given class
*/
void ResolveSuperClasses(const TCHAR* PackageName, FUnrealClassDefinitionInfo& ClassDef)
{
// Resolve the base class
{
FUnrealStructDefinitionInfo::FBaseStructInfo& SuperClassInfo = ClassDef.GetSuperStructInfo();
if (!SuperClassInfo.Name.IsEmpty())
{
const FString& BaseClassName = SuperClassInfo.Name;
const FString& BaseClassNameStripped = GetClassNameWithPrefixRemoved(BaseClassName);
FUnrealClassDefinitionInfo* FoundBaseClassDef = GTypeDefinitionInfoMap.FindByName<FUnrealClassDefinitionInfo>(*BaseClassNameStripped);
if (FoundBaseClassDef == nullptr)
{
FoundBaseClassDef = GTypeDefinitionInfoMap.FindByName<FUnrealClassDefinitionInfo>(*BaseClassName);
}
if (FoundBaseClassDef == nullptr)
{
// Don't know its parent class. Raise error.
ClassDef.Throwf(TEXT("Couldn't find parent type for '%s' named '%s' in current module (Package: %s) or any other module parsed so far."), *ClassDef.GetName(), *BaseClassName, PackageName);
}
SuperClassInfo.Struct = FoundBaseClassDef;
ClassDef.SetClassCastFlags(FoundBaseClassDef->GetClassCastFlags());
}
}
// Resolve the inherited classes
{
for (FUnrealStructDefinitionInfo::FBaseStructInfo& BaseClassInfo : ClassDef.GetBaseStructInfos())
{
BaseClassInfo.Struct = FUnrealClassDefinitionInfo::FindScriptClass(BaseClassInfo.Name);
}
}
}
/**
* Tries to resolve super classes for classes defined in the given
* module.
*
* @param Package Modules package.
*/
void ResolveSuperClasses(FUnrealPackageDefinitionInfo& PackageDef)
{
FString PackageName = PackageDef.GetName();
for (TSharedRef<FUnrealSourceFile> SourceFile : PackageDef.GetAllSourceFiles())
{
for (TSharedRef<FUnrealTypeDefinitionInfo> TypeDef : SourceFile->GetDefinedClasses())
{
ResolveSuperClasses(*PackageName, UHTCastChecked<FUnrealClassDefinitionInfo>(TypeDef));
}
}
}
UPackage* GetModulePackage(FManifestModule& Module)
{
UPackage* Package = FEngineAPI::FindObjectFast<UPackage>(NULL, FName(*Module.LongPackageName), false);
if (Package == NULL)
{
Package = CreatePackage(*Module.LongPackageName);
}
// Set some package flags for indicating that this package contains script
// NOTE: We do this even if we didn't have to create the package, because CoreUObject is compiled into UnrealHeaderTool and we still
// want to make sure our flags get set
Package->SetPackageFlags(PKG_ContainsScript | PKG_Compiling);
Package->ClearPackageFlags(PKG_ClientOptional | PKG_ServerSideOnly);
if (Module.OverrideModuleType == EPackageOverrideType::None)
{
switch (Module.ModuleType)
{
case EBuildModuleType::GameEditor:
case EBuildModuleType::EngineEditor:
Package->SetPackageFlags(PKG_EditorOnly);
break;
case EBuildModuleType::GameDeveloper:
case EBuildModuleType::EngineDeveloper:
Package->SetPackageFlags(PKG_Developer);
break;
case EBuildModuleType::GameUncooked:
case EBuildModuleType::EngineUncooked:
Package->SetPackageFlags(PKG_UncookedOnly);
break;
}
}
else
{
// If the user has specified this module to have another package flag, then OR it on
switch (Module.OverrideModuleType)
{
case EPackageOverrideType::EditorOnly:
Package->SetPackageFlags(PKG_EditorOnly);
break;
case EPackageOverrideType::EngineDeveloper:
case EPackageOverrideType::GameDeveloper:
Package->SetPackageFlags(PKG_Developer);
break;
case EPackageOverrideType::EngineUncookedOnly:
case EPackageOverrideType::GameUncookedOnly:
Package->SetPackageFlags(PKG_UncookedOnly);
break;
}
}
return Package;
}
void PrepareModules(TArray<FUnrealPackageDefinitionInfo*>& PackageDefs, const FString& ModuleInfoPath)
{
// Three passes. 1) Public 'Classes' headers (legacy) 2) Public headers 3) Private headers
enum EHeaderFolderTypes
{
PublicClassesHeaders = 0,
PublicHeaders,
InternalHeaders,
PrivateHeaders,
FolderType_Count
};
for (int32 ModuleIndex = 0, NumModules = GManifest.Modules.Num(); ModuleIndex < NumModules; ++ModuleIndex)
{
FManifestModule& Module = GManifest.Modules[ModuleIndex];
// Force regeneration of all subsequent modules, otherwise data will get corrupted.
Module.ForceRegeneration();
UPackage* Package = GetModulePackage(Module);
// Create the package definition
TSharedRef<FUnrealPackageDefinitionInfo> PackageDefRef = MakeShared<FUnrealPackageDefinitionInfo>(Module, Package);
FUnrealPackageDefinitionInfo& PackageDef = *PackageDefRef;
GTypeDefinitionInfoMap.AddNameLookup(PackageDef);
PackageDefs.Add(&PackageDef);
TArray<TSharedRef<FUnrealSourceFile>>& AllSourceFiles = PackageDef.GetAllSourceFiles();
AllSourceFiles.Reserve(Module.PublicUObjectClassesHeaders.Num() + Module.PublicUObjectHeaders.Num() + Module.InternalUObjectHeaders.Num() + Module.PrivateUObjectHeaders.Num());
// Initialize the other header data structures and create the unreal source files
for (int32 PassIndex = 0; PassIndex < FolderType_Count && FResults::IsSucceeding(); ++PassIndex)
{
EHeaderFolderTypes CurrentlyProcessing = (EHeaderFolderTypes)PassIndex;
const TArray<FString>& UObjectHeaders =
(CurrentlyProcessing == PublicClassesHeaders) ? Module.PublicUObjectClassesHeaders :
(CurrentlyProcessing == PublicHeaders) ? Module.PublicUObjectHeaders :
(CurrentlyProcessing == InternalHeaders) ? Module.InternalUObjectHeaders :
Module.PrivateUObjectHeaders;
if (UObjectHeaders.Num() == 0)
{
continue;
}
// Create the unreal source file objects for each header
for (int32 Index = 0, EIndex = UObjectHeaders.Num(); Index < EIndex; ++Index)
{
const FString& RawFilename = UObjectHeaders[Index];
const FString FullFilename = FPaths::ConvertRelativePathToFull(ModuleInfoPath, RawFilename);
FUnrealSourceFile* UnrealSourceFilePtr = new FUnrealSourceFile(PackageDef, RawFilename);
TSharedRef<FUnrealSourceFile> UnrealSourceFile(UnrealSourceFilePtr);
AllSourceFiles.Add(UnrealSourceFile);
FString CleanFilename = FPaths::GetCleanFilename(RawFilename);
uint32 CleanFilenameHash = GetTypeHash(CleanFilename);
if (TSharedPtr<FUnrealSourceFile> ExistingSourceFile = GUnrealSourceFilesMap.AddByHash(CleanFilenameHash, MoveTemp(CleanFilename), UnrealSourceFile))
{
FString NormalizedFullFilename = FullFilename;
FString NormalizedExistingFilename = ExistingSourceFile->GetFilename();
FPaths::NormalizeFilename(NormalizedFullFilename);
FPaths::NormalizeFilename(NormalizedExistingFilename);
if (NormalizedFullFilename != NormalizedExistingFilename)
{
FUHTMessage(*UnrealSourceFile).LogError(TEXT("Duplicate leaf header name found: %s (original: %s)"), *NormalizedFullFilename, *NormalizedExistingFilename);
}
}
if (CurrentlyProcessing == PublicClassesHeaders)
{
UnrealSourceFilePtr->MarkPublic();
}
// Save metadata for the class path, both for it's include path and relative to the module base directory
if (FullFilename.StartsWith(Module.BaseDirectory))
{
// Get the path relative to the module directory
const TCHAR* ModuleRelativePath = *FullFilename + Module.BaseDirectory.Len();
UnrealSourceFilePtr->SetModuleRelativePath(ModuleRelativePath);
// Calculate the include path
const TCHAR* IncludePath = ModuleRelativePath;
// Walk over the first potential slash
if (*IncludePath == TEXT('/'))
{
IncludePath++;
}
// Does this module path start with a known include path location? If so, we can cut that part out of the include path
static const auto& PublicFolderName = TEXT("Public/");
static const auto& PrivateFolderName = TEXT("Private/");
static const auto& ClassesFolderName = TEXT("Classes/");
static const auto& InternalFolderName = TEXT("Internal/");
if (FCString::Strnicmp(IncludePath, PublicFolderName, UE_ARRAY_COUNT(PublicFolderName) - 1) == 0)
{
IncludePath += (UE_ARRAY_COUNT(PublicFolderName) - 1);
}
else if (FCString::Strnicmp(IncludePath, PrivateFolderName, UE_ARRAY_COUNT(PrivateFolderName) - 1) == 0)
{
IncludePath += (UE_ARRAY_COUNT(PrivateFolderName) - 1);
}
else if (FCString::Strnicmp(IncludePath, ClassesFolderName, UE_ARRAY_COUNT(ClassesFolderName) - 1) == 0)
{
IncludePath += (UE_ARRAY_COUNT(ClassesFolderName) - 1);
}
else if (FCString::Strnicmp(IncludePath, InternalFolderName, UE_ARRAY_COUNT(InternalFolderName) - 1) == 0)
{
IncludePath += (UE_ARRAY_COUNT(InternalFolderName) - 1);
}
// Add the include path
if (*IncludePath != 0)
{
UnrealSourceFilePtr->SetIncludePath(MoveTemp(IncludePath));
}
}
}
}
}
GUnrealSourceFilesMap.Freeze();
}
void LoadSource(FUnrealSourceFile& SourceFile, const FString& ModuleInfoPath)
{
FResults::Try([&SourceFile, &ModuleInfoPath]()
{
FScopedDurationTimer SourceTimer(SourceFile.GetTime(ESourceFileTime::Load));
const FString FullFilename = FPaths::ConvertRelativePathToFull(ModuleInfoPath, *SourceFile.GetFilename());
FString Content;
if (!FFileHelper::LoadFileToString(Content, *FullFilename))
{
FUHTMessage(SourceFile).Throwf(TEXT("UnrealHeaderTool was unable to load source file '%s'"), *FullFilename);
}
SourceFile.SetContent(MoveTemp(Content));
}
);
}
void PreparseSource(FUnrealSourceFile& SourceFile)
{
FResults::Try([&SourceFile]()
{
FScopedDurationTimer SourceTimer(SourceFile.GetTime(ESourceFileTime::PreParse));
// Parse the header to extract the information needed
FUHTStringBuilder ClassHeaderTextStrippedOfCppText;
FHeaderParser::SimplifiedClassParse(SourceFile, *SourceFile.GetContent(), /*out*/ ClassHeaderTextStrippedOfCppText);
SourceFile.SetContent(MoveTemp(ClassHeaderTextStrippedOfCppText));
}
);
}
void PreparseSources(TArray<FUnrealPackageDefinitionInfo*>& PackageDefs, const FString& ModuleInfoPath)
{
if (bGoWide)
{
FGraphEventArray LoadTasks;
LoadTasks.Reserve(1024); // Fairly arbitrary number
for (FUnrealPackageDefinitionInfo* PackageDef : PackageDefs)
{
for (TSharedRef<FUnrealSourceFile>& SourceFile : PackageDef->GetAllSourceFiles())
{
// Phase #1: Load the file
auto LoadLambda = [&SourceFile = *SourceFile, &ModuleInfoPath]()
{
LoadSource(SourceFile, ModuleInfoPath);
};
// Phase #2: Perform simplified class parse (can run concurrenrtly)
auto PreProcessLambda = [&SourceFile = *SourceFile]()
{
PreparseSource(SourceFile);
};
FGraphEventRef LoadTask = FFunctionGraphTask::CreateAndDispatchWhenReady(MoveTemp(LoadLambda), TStatId());
FGraphEventRef PreProcessTask = FFunctionGraphTask::CreateAndDispatchWhenReady(MoveTemp(PreProcessLambda), TStatId(), LoadTask);
LoadTasks.Add(MoveTemp(PreProcessTask));
}
}
// Wait for all the loading and preparsing to complete
FTaskGraphInterface::Get().WaitUntilTasksComplete(LoadTasks);
}
else
{
for (FUnrealPackageDefinitionInfo* PackageDef : PackageDefs)
{
for (TSharedRef<FUnrealSourceFile>& SourceFile : PackageDef->GetAllSourceFiles())
{
LoadSource(*SourceFile, ModuleInfoPath);
PreparseSource(*SourceFile);
}
}
}
FResults::WaitForErrorTasks();
}
void DefineTypes(TArray<FUnrealPackageDefinitionInfo*>& PackageDefs)
{
for (FUnrealPackageDefinitionInfo* PackageDef : PackageDefs)
{
const FManifestModule& Module = PackageDef->GetModule();
for (TSharedRef<FUnrealSourceFile>& SourceFile : PackageDef->GetAllSourceFiles())
{
FResults::Try([PackageDef, &SourceFile = *SourceFile]()
{
TArray<TSharedRef<FUnrealTypeDefinitionInfo>>& AllClasses = PackageDef->GetAllClasses();
UPackage* Package = PackageDef->GetPackage();
for (TSharedRef<FUnrealTypeDefinitionInfo>& TypeDef : SourceFile.GetDefinedClasses())
{
FUnrealClassDefinitionInfo& ClassDef = TypeDef->AsClassChecked();
ProcessParsedClass(ClassDef);
GTypeDefinitionInfoMap.AddNameLookup(UHTCastChecked<FUnrealObjectDefinitionInfo>(TypeDef));
AllClasses.Add(TypeDef);
}
for (TSharedRef<FUnrealTypeDefinitionInfo>& TypeDef : SourceFile.GetDefinedEnums())
{
FUnrealEnumDefinitionInfo& EnumDef = TypeDef->AsEnumChecked();
ProcessParsedEnum(EnumDef);
GTypeDefinitionInfoMap.AddNameLookup(UHTCastChecked<FUnrealObjectDefinitionInfo>(TypeDef));
}
for (TSharedRef<FUnrealTypeDefinitionInfo>& TypeDef : SourceFile.GetDefinedStructs())
{
FUnrealScriptStructDefinitionInfo& ScriptStructDef = TypeDef->AsScriptStructChecked();
ProcessParsedStruct(ScriptStructDef);
GTypeDefinitionInfoMap.AddNameLookup(UHTCastChecked<FUnrealObjectDefinitionInfo>(TypeDef));
}
static const bool bVerbose = FParse::Param(FCommandLine::Get(), TEXT("VERBOSE"));
if (bVerbose)
{
for (FHeaderProvider& DependsOnElement : SourceFile.GetIncludes())
{
UE_LOG(LogCompile, Log, TEXT("\tAdding %s as a dependency"), *DependsOnElement.ToString());
}
}
}
);
}
}
FResults::WaitForErrorTasks();
}
void ResolveParents(TArray<FUnrealPackageDefinitionInfo*>& PackageDefs)
{
GUObjectDef = &GTypeDefinitionInfoMap.FindByNameChecked<FUnrealClassDefinitionInfo>(*UObject::StaticClass()->GetFName().ToString());
GUClassDef = &GTypeDefinitionInfoMap.FindByNameChecked<FUnrealClassDefinitionInfo>(*UClass::StaticClass()->GetFName().ToString());
GUInterfaceDef = &GTypeDefinitionInfoMap.FindByNameChecked<FUnrealClassDefinitionInfo>(*UInterface::StaticClass()->GetFName().ToString());
for (FUnrealPackageDefinitionInfo* PackageDef : PackageDefs)
{
FResults::Try([PackageDef]() { ResolveSuperClasses(*PackageDef); });
}
FResults::WaitForErrorTasks();
}
void PrepareTypesForParsing(TArray<FUnrealPackageDefinitionInfo*>& PackageDefs)
{
// Does nothing now
}
void TopologicalRecursion(FUnrealSourceFile& First, FUnrealSourceFile& Visit)
{
check(Visit.GetTopologicalState() == ETopologicalState::Temporary);
for (FHeaderProvider& Header : Visit.GetIncludes())
{
if (FUnrealSourceFile* Include = Header.Resolve(Visit))
{
if (Include->GetTopologicalState() == ETopologicalState::Temporary)
{
UE_LOG(LogCompile, Error, TEXT("%s includes/requires %s"), *Visit.GetFilename(), *Include->GetFilename());
if (&First != Include)
{
TopologicalRecursion(First, *Include);
}
break;
}
}
}
}
FUnrealSourceFile* TopologicalVisit(TArray<FUnrealSourceFile*>& OrderedSourceFiles, FUnrealSourceFile& Visit)
{
switch (Visit.GetTopologicalState())
{
case ETopologicalState::Unmarked:
Visit.SetTopologicalState(ETopologicalState::Temporary);
for (FHeaderProvider& Header : Visit.GetIncludes())
{
if (FUnrealSourceFile* Include = Header.Resolve(Visit))
{
if (FUnrealSourceFile* Recursion = TopologicalVisit(OrderedSourceFiles, *Include))
{
return Recursion;
}
}
}
Visit.SetTopologicalState(ETopologicalState::Permanent);
OrderedSourceFiles.Add(&Visit);
return nullptr;
case ETopologicalState::Temporary:
return &Visit;
case ETopologicalState::Permanent:
return nullptr;
}
return nullptr;
}
void TopologicalSort(TArray<FUnrealSourceFile*>& OrderedSourceFiles)
{
const TArray<FUnrealSourceFile*>& UnorderedSourceFiles = GUnrealSourceFilesMap.GetAllSourceFiles();
OrderedSourceFiles.Reset(UnorderedSourceFiles.Num());
for (FUnrealSourceFile* SourceFile : UnorderedSourceFiles)
{
SourceFile->SetTopologicalState(ETopologicalState::Unmarked);
}
bool bCircularDependencyDetected = false;
for (FUnrealSourceFile* SourceFile : UnorderedSourceFiles)
{
if (SourceFile->GetTopologicalState() == ETopologicalState::Unmarked)
{
if (FUnrealSourceFile* Recusion = TopologicalVisit(OrderedSourceFiles, *SourceFile))
{
UE_LOG(LogCompile, Error, TEXT("Circular dependency detected:"));
TopologicalRecursion(*Recusion, *Recusion);
FResults::SetResult(ECompilationResult::OtherCompilationError);
bCircularDependencyDetected = true;
}
}
}
if (bCircularDependencyDetected)
{
return;
}
for (int32 Index = 0, EIndex = OrderedSourceFiles.Num(); Index != EIndex; ++Index)
{
OrderedSourceFiles[Index]->SetOrderedIndex(Index);
}
return;
}
void ParseSourceFiles(TArray<FUnrealSourceFile*>& OrderedSourceFiles)
{
// Disable loading of objects outside of this package (or more exactly, objects which aren't UFields, CDO, or templates)
TGuardValue<bool> AutoRestoreVerifyObjectRefsFlag(GVerifyObjectReferencesOnly, true);
GSourcesToParse = (int)OrderedSourceFiles.Num();
if (bGoWide)
{
/**
* For every FUnrealSourceFile being processed, an instance of this class represents the data associated with generating the new output.
*/
struct FParseCPP
{
FParseCPP(FUnrealPackageDefinitionInfo& InPackageDef, FUnrealSourceFile& InSourceFile)
: PackageDef(InPackageDef)
, SourceFile(InSourceFile)
{}
/**
* The package definition being exported
*/
FUnrealPackageDefinitionInfo& PackageDef;
/**
* The source file being exported
*/
FUnrealSourceFile& SourceFile;
/**
* This task represents the task that parses the source
*/
FGraphEventRef ParseTaskRef;
};
TArray<FParseCPP> ParsedCPPs;
ParsedCPPs.Reserve(OrderedSourceFiles.Num());
for (FUnrealSourceFile* SourceFile : OrderedSourceFiles)
{
ParsedCPPs.Emplace(SourceFile->GetPackageDef(), *SourceFile);
}
TSet<FUnrealSourceFile*> Includes;
Includes.Reserve(ParsedCPPs.Num());
FGraphEventArray TempTasks;
TempTasks.Reserve(ParsedCPPs.Num());
FGraphEventArray ParsedSourceTasks;
ParsedSourceTasks.Reserve(ParsedCPPs.Num());
for (FParseCPP& ParsedCPP : ParsedCPPs)
{
const FManifestModule& Module = ParsedCPP.PackageDef.GetModule();
FUnrealSourceFile& SourceFile = ParsedCPP.SourceFile;
FString ModuleRelativeFilename = SourceFile.GetFilename();
ConvertToBuildIncludePath(Module, ModuleRelativeFilename);
auto ParseSource = [&ParsedCPP]()
{
++GSourcesParsing;
FResults::TryAlways([&ParsedCPP]()
{
FHeaderParser::Parse(ParsedCPP.PackageDef, ParsedCPP.SourceFile);
});
++GSourcesCompleted;
};
Includes.Reset();
for (FHeaderProvider& Header : SourceFile.GetIncludes())
{
if (FUnrealSourceFile* Include = Header.Resolve(SourceFile))
{
Includes.Add(Include);
}
}
// Our generation must wait on all of our includes generation to complete
TempTasks.Reset();
for (FUnrealSourceFile* Include : Includes)
{
FParseCPP& IncludeCPP = ParsedCPPs[Include->GetOrderedIndex()];
TempTasks.Add(IncludeCPP.ParseTaskRef);
}
ParsedCPP.ParseTaskRef = FFunctionGraphTask::CreateAndDispatchWhenReady(MoveTemp(ParseSource), TStatId(), &TempTasks);
ParsedSourceTasks.Add(ParsedCPP.ParseTaskRef);
}
// Wait for the results
FTaskGraphInterface::Get().WaitUntilTasksComplete(ParsedSourceTasks);
FResults::WaitForErrorTasks();
}
else
{
for (FUnrealSourceFile* SourceFile : OrderedSourceFiles)
{
FUnrealPackageDefinitionInfo& PackageDef = SourceFile->GetPackageDef();
FScopedDurationTimer SourceTimer(SourceFile->GetTime(ESourceFileTime::Parse));
++GSourcesParsing;
FResults::TryAlways([&PackageDef, SourceFile]() { FHeaderParser::Parse(PackageDef, *SourceFile); });
++GSourcesCompleted;
}
}
}
void PostParseFinalize(TArray<FUnrealPackageDefinitionInfo*>& PackageDefs)
{
auto PostParseFinalize = [&PackageDefs](EPostParseFinalizePhase Phase)
{
for (FUnrealPackageDefinitionInfo* PackageDef : PackageDefs)
{
FResults::Try([PackageDef, Phase]()
{
PackageDef->PostParseFinalize(Phase);
});
}
};
PostParseFinalize(EPostParseFinalizePhase::Phase1);
PostParseFinalize(EPostParseFinalizePhase::Phase2);
FResults::WaitForErrorTasks();
}
void CreateEngineTypes(TArray<FUnrealPackageDefinitionInfo*>& PackageDefs)
{
auto CreateEngineTypes = [&PackageDefs](ECreateEngineTypesPhase Phase)
{
for (FUnrealPackageDefinitionInfo* PackageDef : PackageDefs)
{
FResults::Try([PackageDef, Phase]()
{
PackageDef->CreateUObjectEngineTypes(Phase);
});
}
for (FUnrealPackageDefinitionInfo* PackageDef : PackageDefs)
{
FResults::Try([PackageDef, Phase]()
{
PackageDef->CreateUObjectEngineTypes(Phase);
});
}
};
CreateEngineTypes(ECreateEngineTypesPhase::Phase1);
CreateEngineTypes(ECreateEngineTypesPhase::Phase2);
CreateEngineTypes(ECreateEngineTypesPhase::Phase3);
FResults::WaitForErrorTasks();
}
void Export(TArray<FUnrealPackageDefinitionInfo*>& PackageDefs, TArray<FUnrealSourceFile*>& OrderedSourceFiles)
{
TArray<FGeneratedCPP> GeneratedCPPs;
GeneratedCPPs.Reserve(OrderedSourceFiles.Num());
for (FUnrealSourceFile* SourceFile : OrderedSourceFiles)
{
GeneratedCPPs.Emplace(SourceFile->GetPackageDef(), *SourceFile);
}
FResults::Try([&GeneratedCPPs]() { FNativeClassHeaderGenerator::GenerateSourceFiles(GeneratedCPPs); });
for (FUnrealPackageDefinitionInfo* PackageDef : PackageDefs)
{
FResults::Try([&GeneratedCPPs, PackageDef]() { FNativeClassHeaderGenerator::Generate(*PackageDef, GeneratedCPPs); });
}
FResults::WaitForErrorTasks();
}
// Exports the class to all available plugins
void ExportClassToScriptPlugins(const TMap<UClass*, FUnrealSourceFile*>& SourceFileLookup, UClass* Class, const FManifestModule& Module, IScriptGeneratorPluginInterface& ScriptPlugin)
{
check(SourceFileLookup.Find(Class) != nullptr);
FUnrealSourceFile* const * SourceFile = SourceFileLookup.Find(Class);
if (SourceFile == nullptr)
{
const FString Empty = TEXT("");
ScriptPlugin.ExportClass(Class, Empty, Empty, false);
}
else
{
ScriptPlugin.ExportClass(Class, (*SourceFile)->GetFilename(), (*SourceFile)->GetGeneratedFilename(), (*SourceFile)->HasChanged());
}
}
// Exports class tree to all available plugins
void ExportClassTreeToScriptPlugins(const TMap<UClass*, FUnrealSourceFile*>& SourceFileLookup, const FClassTree* Node, const FManifestModule& Module, IScriptGeneratorPluginInterface& ScriptPlugin)
{
for (int32 ChildIndex = 0; ChildIndex < Node->NumChildren(); ++ChildIndex)
{
const FClassTree* ChildNode = Node->GetChild(ChildIndex);
ExportClassToScriptPlugins(SourceFileLookup, ChildNode->GetClass(), Module, ScriptPlugin);
}
for (int32 ChildIndex = 0; ChildIndex < Node->NumChildren(); ++ChildIndex)
{
const FClassTree* ChildNode = Node->GetChild(ChildIndex);
ExportClassTreeToScriptPlugins(SourceFileLookup, ChildNode, Module, ScriptPlugin);
}
}
void ExportToScriptPlugins(TArray<IScriptGeneratorPluginInterface*>& ScriptPlugins, TArray<FUnrealPackageDefinitionInfo*>& PackageDefs, FString& ExternalDependencies)
{
TMap<UClass*, FUnrealSourceFile*> SourceFileLookup;
for (FUnrealPackageDefinitionInfo* PackageDef : PackageDefs)
{
for (TSharedRef<FUnrealTypeDefinitionInfo> TypeDef : PackageDef->GetAllClasses())
{
UClass* Class = UHTCastChecked<FUnrealClassDefinitionInfo>(TypeDef).GetClass();
SourceFileLookup.Add(Class, &TypeDef->GetUnrealSourceFile());
}
}
for (FUnrealPackageDefinitionInfo* PackageDef : PackageDefs)
{
const FManifestModule& Module = PackageDef->GetModule();
FClassTree ClassTree(UObject::StaticClass());
for (TSharedRef<FUnrealTypeDefinitionInfo> TypeDef : PackageDef->GetAllClasses())
{
ClassTree.AddClass(UHTCastChecked<FUnrealClassDefinitionInfo>(TypeDef).GetClass());
}
ClassTree.Validate();
for (IScriptGeneratorPluginInterface* Plugin : ScriptPlugins)
{
if (Plugin->ShouldExportClassesForModule(Module.Name, Module.ModuleType, Module.GeneratedIncludeDirectory))
{
ExportClassToScriptPlugins(SourceFileLookup, ClassTree.GetClass(), Module, *Plugin);
ExportClassTreeToScriptPlugins(SourceFileLookup, &ClassTree, Module, *Plugin);
}
}
}
for (IScriptGeneratorPluginInterface* ScriptGenerator : ScriptPlugins)
{
ScriptGenerator->FinishExport();
}
// Get a list of external dependencies from each enabled plugin
for (IScriptGeneratorPluginInterface* ScriptPlugin : ScriptPlugins)
{
TArray<FString> PluginExternalDependencies;
ScriptPlugin->GetExternalDependencies(PluginExternalDependencies);
for (const FString& PluginExternalDependency : PluginExternalDependencies)
{
ExternalDependencies += PluginExternalDependency + LINE_TERMINATOR;
}
}
return;
}
void WriteExternalDependencies(const FString& ExternalDependencies)
{
FFileHelper::SaveStringToFile(ExternalDependencies, *GManifest.ExternalDependenciesFile);
}
void GenerateSummary(TArray<FUnrealPackageDefinitionInfo*>& PackageDefs)
{
for (FUnrealPackageDefinitionInfo* PackageDef : PackageDefs)
{
const FManifestModule& Module = PackageDef->GetModule();
double TotalTimes[int32(ESourceFileTime::Count)] = { 0.0 };
int32 LinesParsed = 0;
int32 StatementsParsed = 0;
int32 SourceCount = 0;
TArray<TSharedRef<FUnrealSourceFile>>& SourceFiles = PackageDef->GetAllSourceFiles();
for (TSharedRef<FUnrealSourceFile>& SourceFile : SourceFiles)
{
for (int32 Index = 0; Index < int32(ESourceFileTime::Count); ++Index)
{
TotalTimes[int32(Index)] += SourceFile->GetTime(ESourceFileTime(Index));
}
LinesParsed += SourceFile->GetLinesParsed();
StatementsParsed += SourceFile->GetStatementsParsed();
}
UE_LOG(LogCompile, Log, TEXT("Success: Module %s parsed %d sources(s), %d line(s), %d statement(s). Times(secs) Load: %.3f, PreParse: %.3f, Parse: %.3f, Generate: %.3f."), *Module.Name,
SourceFiles.Num(), LinesParsed, StatementsParsed, TotalTimes[int32(ESourceFileTime::Load)], TotalTimes[int32(ESourceFileTime::PreParse)], TotalTimes[int32(ESourceFileTime::Parse)], TotalTimes[int32(ESourceFileTime::Generate)]);
}
}
ECompilationResult::Type UnrealHeaderTool_Main(const FString& ModuleInfoFilename)
{
double MainTime = 0.0;
FDurationTimer MainTimer(MainTime);
MainTimer.Start();
bIncludeDebugOutput = FParse::Param(FCommandLine::Get(), TEXT("IncludeDebugOutput"));
bGoWide = !FParse::Param(FCommandLine::Get(), TEXT("NoGoWide"));
check(GIsUCCMakeStandaloneHeaderGenerator);
FString ModuleInfoPath = FPaths::GetPath(ModuleInfoFilename);
// The meta data keywords must be initialized prior to going wide
FBaseParser::InitMetadataKeywords();
// Load the manifest file, giving a list of all modules to be processed, pre-sorted by dependency ordering
FResults::Try([&ModuleInfoFilename]() { GManifest = FManifest::LoadFromFile(ModuleInfoFilename); });
TArray<FUnrealSourceFile*> OrderedSourceFiles;
TArray<FUnrealPackageDefinitionInfo*> PackageDefs;
PackageDefs.Reserve(GManifest.Modules.Num());
double TotalPrepareModuleTime = FResults::TimedTry([&PackageDefs, &ModuleInfoPath]() { PrepareModules(PackageDefs, ModuleInfoPath); });
FString ExternalDependencies;
TArray<IScriptGeneratorPluginInterface*> ScriptPlugins;
double TotalPreparseTime = FResults::TimedTry([&PackageDefs, &ModuleInfoPath]() { PreparseSources(PackageDefs, ModuleInfoPath); });
double TotalDefineTypesTime = FResults::TimedTry([&PackageDefs]() { DefineTypes(PackageDefs); });
double TotalResolveParentsTime = FResults::TimedTry([&PackageDefs]() { ResolveParents(PackageDefs); });
double TotalPrepareTypesForParsingTime = FResults::TimedTry([&PackageDefs]() { PrepareTypesForParsing(PackageDefs); });
double TotalTopologicalSortTime = FResults::TimedTry([&OrderedSourceFiles]() { TopologicalSort(OrderedSourceFiles); });
double TotalParseTime = FResults::TimedTry([&OrderedSourceFiles]() { ParseSourceFiles(OrderedSourceFiles); });
double TotalPostParseFinalizeTime = FResults::TimedTry([&PackageDefs]() { PostParseFinalize(PackageDefs); });
// Look for any core classes that don't have a definition
for (TObjectIterator<UClass> ClassIt; ClassIt; ++ClassIt)
{
if (GTypeDefinitionInfoMap.FindByName(*ClassIt->GetFName().ToString()) == nullptr)
{
UE_LOG(LogCompile, Log, TEXT("The core class '%s' doesn't have a matching entry in NoExportTypes.h"), *ClassIt->GetFName().ToString());
}
}
TotalTopologicalSortTime += FResults::TimedTry([&OrderedSourceFiles]() { TopologicalSort(OrderedSourceFiles); }); // Sort again to include new dependencies
double TotalCodeGenTime = FResults::TimedTry([&PackageDefs, &OrderedSourceFiles]() { Export(PackageDefs, OrderedSourceFiles); });
double TotalCheckForScriptPluginsTime = FResults::TimedTry([&ScriptPlugins]() { GetScriptPlugins(ScriptPlugins); });
double TotalCreateEngineTypesTime = ScriptPlugins.IsEmpty() ? 0.0 : FResults::TimedTry([&PackageDefs]() { CreateEngineTypes(PackageDefs); });
double TotalPluginTime = ScriptPlugins.IsEmpty() ? 0.0 : FResults::TimedTry([&ScriptPlugins, &PackageDefs, &ExternalDependencies]() { ExportToScriptPlugins(ScriptPlugins, PackageDefs, ExternalDependencies); });
double TotalWriteExternalDependenciesTime = FResults::TimedTry([&ExternalDependencies]() { WriteExternalDependencies(ExternalDependencies); });
double TotalSummaryTime = FResults::TimedTry([&PackageDefs]() { GenerateSummary(PackageDefs); });
// Finish all async file tasks before stopping the clock
FTaskGraphInterface::Get().WaitUntilTasksComplete(GAsyncFileTasks);
GAsyncFileTasks.Reset();
// TEMPORARY change to log all files when UHT fails
if (FResults::GetOverallResults() != 0)
{
UE_LOG(LogCompile, Log, TEXT("Source file listing due to UHT detected errors:"));
for (FUnrealPackageDefinitionInfo* PackageDef : PackageDefs)
{
const FManifestModule& Module = PackageDef->GetModule();
UE_LOG(LogCompile, Log, TEXT("Package %s sources"), *Module.Name);
TArray<TSharedRef<FUnrealSourceFile>>& SourceFiles = PackageDef->GetAllSourceFiles();
for (TSharedRef<FUnrealSourceFile>& SourceFile : SourceFiles)
{
UE_LOG(LogCompile, Log, TEXT("---- %s"), *SourceFile->GetFilename());
}
}
}
double TotalShutdownTime = FResults::TimedTry([]() { GTypeDefinitionInfoMap.Reset(); GUnrealSourceFilesMap.Reset(); });
MainTimer.Stop();
// Count the number of sources
int NumSources = 0;
for (const FManifestModule& Module : GManifest.Modules)
{
NumSources += Module.PublicUObjectClassesHeaders.Num() + Module.PublicUObjectHeaders.Num() + Module.InternalUObjectHeaders.Num() + Module.PrivateUObjectHeaders.Num();
}
UE_LOG(LogCompile, Log, TEXT("Preparing %d modules took %.3f seconds"), GManifest.Modules.Num(), TotalPrepareModuleTime);
UE_LOG(LogCompile, Log, TEXT("Preparsing %d sources took %.3f seconds"), NumSources, TotalPreparseTime);
UE_LOG(LogCompile, Log, TEXT("Defining types took %.3f seconds"), TotalDefineTypesTime);
UE_LOG(LogCompile, Log, TEXT("Resolving type parents took %.3f seconds"), TotalResolveParentsTime);
UE_LOG(LogCompile, Log, TEXT("Preparing types for parsing took %.3f seconds"), TotalPrepareTypesForParsingTime);
UE_LOG(LogCompile, Log, TEXT("Sorting files by dependencies took %.3f seconds"), TotalTopologicalSortTime);
UE_LOG(LogCompile, Log, TEXT("Parsing took %.3f seconds"), TotalParseTime);
UE_LOG(LogCompile, Log, TEXT("Post parse finalization took %.3f seconds"), TotalPostParseFinalizeTime);
UE_LOG(LogCompile, Log, TEXT("Code generation took %.3f seconds"), TotalCodeGenTime);
UE_LOG(LogCompile, Log, TEXT("Check for script plugins took %.3f seconds"), TotalCheckForScriptPluginsTime);
UE_LOG(LogCompile, Log, TEXT("Create engine types took % .3f seconds"), TotalCreateEngineTypesTime);
UE_LOG(LogCompile, Log, TEXT("ScriptPlugin overhead was %.3f seconds"), TotalPluginTime);
UE_LOG(LogCompile, Log, TEXT("Write external dependencies overhead was %.3f seconds"), TotalWriteExternalDependenciesTime);
UE_LOG(LogCompile, Log, TEXT("Summary generation took %.3f seconds"), TotalSummaryTime);
UE_LOG(LogCompile, Log, TEXT("Macroize time was %.3f CPU seconds"), GMacroizeTime);
UE_LOG(LogCompile, Log, TEXT("Freeing types was %.3f seconds"), TotalShutdownTime);
FUnrealHeaderToolStats& Stats = FUnrealHeaderToolStats::Get();
for (const TPair<FName, double>& Pair : Stats.Counters)
{
FString CounterName = Pair.Key.ToString();
UE_LOG(LogCompile, Log, TEXT("%s timer was %.3f seconds"), *CounterName, Pair.Value);
}
UE_LOG(LogCompile, Log, TEXT("Total time was %.2f seconds"), MainTime);
if (bWriteContents)
{
UE_LOG(LogCompile, Log, TEXT("********************************* Wrote reference generated code to ReferenceGeneratedCode."));
}
else if (bVerifyContents)
{
UE_LOG(LogCompile, Log, TEXT("********************************* Wrote generated code to VerifyGeneratedCode and compared to ReferenceGeneratedCode"));
for (FString& Msg : ChangeMessages)
{
UE_LOG(LogCompile, Error, TEXT("%s"), *Msg);
}
TArray<FString> RefFileNames;
IFileManager::Get().FindFiles( RefFileNames, *(FPaths::ProjectSavedDir() / TEXT("ReferenceGeneratedCode/*.*")), true, false );
TArray<FString> VerFileNames;
IFileManager::Get().FindFiles( VerFileNames, *(FPaths::ProjectSavedDir() / TEXT("VerifyGeneratedCode/*.*")), true, false );
if (RefFileNames.Num() != VerFileNames.Num())
{
UE_LOG(LogCompile, Error, TEXT("Number of generated files mismatch ref=%d, ver=%d"), RefFileNames.Num(), VerFileNames.Num());
}
if (ChangeMessages.Num() > 0 || RefFileNames.Num() != VerFileNames.Num())
{
FResults::SetResult(ECompilationResult::OtherCompilationError);
}
}
RequestEngineExit(TEXT("UnrealHeaderTool finished"));
return FResults::GetOverallResults();
}
void ProcessParsedClass(FUnrealClassDefinitionInfo& ClassDef)
{
UPackage* Package = ClassDef.GetPackageDef().GetPackage();
const FString& ClassName = ClassDef.GetNameCPP();
FString ClassNameStripped = GetClassNameWithPrefixRemoved(*ClassName);
const FString& BaseClassName = ClassDef.GetSuperStructInfo().Name;
// All classes must start with a valid unreal prefix
if (!FHeaderParser::ClassNameHasValidPrefix(ClassName, ClassNameStripped))
{
ClassDef.Throwf(TEXT("Invalid class name '%s'. The class name must have an appropriate prefix added (A for Actors, U for other classes)."), *ClassName);
}
if(FHeaderParser::IsReservedTypeName(ClassNameStripped))
{
ClassDef.Throwf(TEXT("Invalid class name '%s'. Cannot use a reserved name ('%s')."), *ClassName, *ClassNameStripped);
}
// Ensure the base class has any valid prefix and exists as a valid class. Checking for the 'correct' prefix will occur during compilation
FString BaseClassNameStripped;
if (!BaseClassName.IsEmpty())
{
BaseClassNameStripped = GetClassNameWithPrefixRemoved(BaseClassName);
if (!FHeaderParser::ClassNameHasValidPrefix(BaseClassName, BaseClassNameStripped))
{
ClassDef.Throwf(TEXT("No prefix or invalid identifier for base class %s.\nClass names must match Unreal prefix specifications (e.g., \"UObject\" or \"AActor\")"), *BaseClassName);
}
}
//UE_LOG(LogCompile, Log, TEXT("Class: %s extends %s"),*ClassName,*BaseClassName);
// Handle failure and non-class headers.
if (BaseClassName.IsEmpty() && (ClassName != TEXT("UObject")))
{
ClassDef.Throwf(TEXT("Class '%s' must inherit UObject or a UObject-derived class"), *ClassName);
}
if (ClassName == BaseClassName)
{
ClassDef.Throwf(TEXT("Class '%s' cannot inherit from itself"), *ClassName);
}
// if we aren't generating headers, then we shouldn't set misaligned object, since it won't get cleared
const static bool bVerboseOutput = FParse::Param(FCommandLine::Get(), TEXT("VERBOSE"));
if (TSharedRef<FUnrealTypeDefinitionInfo>* Existing = GTypeDefinitionInfoMap.FindByName(*ClassNameStripped))
{
ClassDef.Throwf(TEXT("Duplicate class name: %s also exists in file %s"), *ClassName, *(*Existing)->GetFilename());
}
if (bVerboseOutput)
{
UE_LOG(LogCompile, Log, TEXT("Imported: %s"), *ClassDef.GetFullName());
}
}
void ProcessParsedEnum(FUnrealEnumDefinitionInfo& EnumDef)
{
UPackage* Package = EnumDef.GetPackageDef().GetPackage();
const FString& EnumName = EnumDef.GetNameCPP();
if (TSharedRef<FUnrealTypeDefinitionInfo>* Existing = GTypeDefinitionInfoMap.FindByName(*EnumName))
{
EnumDef.Throwf(TEXT("Duplicate enum name: %s also exists in file %s"), *EnumName, *(*Existing)->GetFilename());
}
// Check if the enum name is using a reserved keyword
if (FHeaderParser::IsReservedTypeName(EnumName))
{
EnumDef.Throwf(TEXT("enum: '%s' uses a reserved type name."), *EnumName);
}
}
void ProcessParsedStruct(FUnrealScriptStructDefinitionInfo& ScriptStructDef)
{
const FString& StructName = ScriptStructDef.GetNameCPP();
FString StructNameStripped = GetClassNameWithPrefixRemoved(*StructName);
if (TSharedRef<FUnrealTypeDefinitionInfo>* Existing = GTypeDefinitionInfoMap.FindByName(*StructNameStripped))
{
ScriptStructDef.Throwf(TEXT("Duplicate struct name: %s also exists in file %s"), *StructNameStripped, *(*Existing)->GetFilename());
}
// Check if the enum name is using a reserved keyword
if (FHeaderParser::IsReservedTypeName(StructNameStripped))
{
ScriptStructDef.Throwf(TEXT("struct: '%s' uses a reserved type name."), *StructNameStripped);
}
}
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