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378 lines
10 KiB
C++
378 lines
10 KiB
C++
// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
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#include "ProjectsPrivatePCH.h"
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#define LOCTEXT_NAMESPACE "ModuleDescriptor"
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ELoadingPhase::Type ELoadingPhase::FromString( const TCHAR *String )
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{
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ELoadingPhase::Type TestType = (ELoadingPhase::Type)0;
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for(; TestType < ELoadingPhase::Max; TestType = (ELoadingPhase::Type)(TestType + 1))
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{
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const TCHAR *TestString = ToString(TestType);
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if(FCString::Stricmp(String, TestString) == 0)
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{
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break;
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}
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}
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return TestType;
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}
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const TCHAR* ELoadingPhase::ToString( const ELoadingPhase::Type Value )
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{
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switch( Value )
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{
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case Default:
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return TEXT( "Default" );
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case PostDefault:
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return TEXT( "PostDefault" );
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case PreDefault:
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return TEXT( "PreDefault" );
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case PostConfigInit:
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return TEXT( "PostConfigInit" );
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case PreLoadingScreen:
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return TEXT( "PreLoadingScreen" );
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case PostEngineInit:
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return TEXT( "PostEngineInit" );
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default:
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ensureMsgf( false, TEXT( "Unrecognized ELoadingPhase value: %i" ), Value );
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return NULL;
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}
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}
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EHostType::Type EHostType::FromString( const TCHAR *String )
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{
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EHostType::Type TestType = (EHostType::Type)0;
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for(; TestType < EHostType::Max; TestType = (EHostType::Type)(TestType + 1))
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{
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const TCHAR *TestString = ToString(TestType);
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if(FCString::Stricmp(String, TestString) == 0)
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{
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break;
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}
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}
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return TestType;
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}
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const TCHAR* EHostType::ToString( const EHostType::Type Value )
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{
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switch( Value )
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{
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case Runtime:
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return TEXT( "Runtime" );
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case RuntimeNoCommandlet:
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return TEXT( "RuntimeNoCommandlet" );
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case Developer:
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return TEXT( "Developer" );
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case Editor:
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return TEXT( "Editor" );
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case EditorNoCommandlet:
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return TEXT( "EditorNoCommandlet" );
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case Program:
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return TEXT("Program");
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default:
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ensureMsgf( false, TEXT( "Unrecognized EModuleType value: %i" ), Value );
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return NULL;
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}
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}
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FModuleDescriptor::FModuleDescriptor(const FName InName, EHostType::Type InType, ELoadingPhase::Type InLoadingPhase)
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: Name(InName)
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, Type(InType)
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, LoadingPhase(InLoadingPhase)
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{
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}
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bool FModuleDescriptor::Read(const FJsonObject& Object, FText& OutFailReason)
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{
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// Read the module name
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TSharedPtr<FJsonValue> NameValue = Object.TryGetField(TEXT("Name"));
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if(!NameValue.IsValid() || NameValue->Type != EJson::String)
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{
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OutFailReason = LOCTEXT("ModuleWithoutAName", "Found a 'Module' entry with a missing 'Name' field");
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return false;
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}
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Name = FName(*NameValue->AsString());
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// Read the module type
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TSharedPtr<FJsonValue> TypeValue = Object.TryGetField(TEXT("Type"));
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if(!TypeValue.IsValid() || TypeValue->Type != EJson::String)
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{
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OutFailReason = FText::Format( LOCTEXT( "ModuleWithoutAType", "Found Module entry '{0}' with a missing 'Type' field" ), FText::FromName(Name) );
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return false;
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}
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Type = EHostType::FromString(*TypeValue->AsString());
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if(Type == EHostType::Max)
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{
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OutFailReason = FText::Format( LOCTEXT( "ModuleWithInvalidType", "Module entry '{0}' specified an unrecognized module Type '{1}'" ), FText::FromName(Name), FText::FromString(TypeValue->AsString()) );
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return false;
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}
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// Read the loading phase
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TSharedPtr<FJsonValue> LoadingPhaseValue = Object.TryGetField(TEXT("LoadingPhase"));
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if(LoadingPhaseValue.IsValid() && LoadingPhaseValue->Type == EJson::String)
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{
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LoadingPhase = ELoadingPhase::FromString(*LoadingPhaseValue->AsString());
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if(LoadingPhase == ELoadingPhase::Max)
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{
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OutFailReason = FText::Format( LOCTEXT( "ModuleWithInvalidLoadingPhase", "Module entry '{0}' specified an unrecognized module LoadingPhase '{1}'" ), FText::FromName(Name), FText::FromString(LoadingPhaseValue->AsString()) );
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return false;
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}
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}
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// Read the whitelisted platforms
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TSharedPtr<FJsonValue> WhitelistPlatformsValue = Object.TryGetField(TEXT("WhitelistPlatforms"));
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if(WhitelistPlatformsValue.IsValid() && WhitelistPlatformsValue->Type == EJson::Array)
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{
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const TArray< TSharedPtr< FJsonValue > >& PlatformsArray = WhitelistPlatformsValue->AsArray();
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for(int Idx = 0; Idx < PlatformsArray.Num(); Idx++)
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{
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WhitelistPlatforms.Add(PlatformsArray[Idx]->AsString());
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}
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}
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// Read the blacklisted platforms
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TSharedPtr<FJsonValue> BlacklistPlatformsValue = Object.TryGetField(TEXT("BlacklistPlatforms"));
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if(BlacklistPlatformsValue.IsValid() && BlacklistPlatformsValue->Type == EJson::Array)
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{
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const TArray< TSharedPtr< FJsonValue > >& PlatformsArray = BlacklistPlatformsValue->AsArray();
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for(int Idx = 0; Idx < PlatformsArray.Num(); Idx++)
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{
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BlacklistPlatforms.Add(PlatformsArray[Idx]->AsString());
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}
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}
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return true;
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}
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bool FModuleDescriptor::ReadArray(const FJsonObject& Object, const TCHAR* Name, TArray<FModuleDescriptor>& OutModules, FText& OutFailReason)
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{
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bool bResult = true;
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TSharedPtr<FJsonValue> ModulesArrayValue = Object.TryGetField(Name);
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if(ModulesArrayValue.IsValid() && ModulesArrayValue->Type == EJson::Array)
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{
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const TArray< TSharedPtr< FJsonValue > >& ModulesArray = ModulesArrayValue->AsArray();
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for(int Idx = 0; Idx < ModulesArray.Num(); Idx++)
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{
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const TSharedPtr<FJsonValue>& ModuleValue = ModulesArray[Idx];
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if(ModuleValue.IsValid() && ModuleValue->Type == EJson::Object)
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{
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FModuleDescriptor Descriptor;
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if(Descriptor.Read(*ModuleValue->AsObject().Get(), OutFailReason))
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{
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OutModules.Add(Descriptor);
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}
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else
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{
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bResult = false;
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}
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}
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else
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{
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OutFailReason = LOCTEXT( "ModuleWithInvalidModulesArray", "The 'Modules' array has invalid contents and was not able to be loaded." );
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bResult = false;
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}
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}
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}
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return bResult;
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}
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void FModuleDescriptor::Write(TJsonWriter<>& Writer) const
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{
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Writer.WriteObjectStart();
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Writer.WriteValue(TEXT("Name"), Name.ToString());
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Writer.WriteValue(TEXT("Type"), FString(EHostType::ToString(Type)));
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Writer.WriteValue(TEXT("LoadingPhase"), FString(ELoadingPhase::ToString(LoadingPhase)));
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if (WhitelistPlatforms.Num() > 0)
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{
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Writer.WriteArrayStart(TEXT("WhitelistPlatforms"));
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for(int Idx = 0; Idx < WhitelistPlatforms.Num(); Idx++)
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{
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Writer.WriteValue(WhitelistPlatforms[Idx]);
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}
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Writer.WriteArrayEnd();
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}
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if (BlacklistPlatforms.Num() > 0)
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{
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Writer.WriteArrayStart(TEXT("BlacklistPlatforms"));
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for(int Idx = 0; Idx < BlacklistPlatforms.Num(); Idx++)
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{
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Writer.WriteValue(BlacklistPlatforms[Idx]);
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}
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Writer.WriteArrayEnd();
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}
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Writer.WriteObjectEnd();
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}
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void FModuleDescriptor::WriteArray(TJsonWriter<>& Writer, const TCHAR* Name, const TArray<FModuleDescriptor>& Modules)
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{
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if(Modules.Num() > 0)
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{
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Writer.WriteArrayStart(Name);
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for(int Idx = 0; Idx < Modules.Num(); Idx++)
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{
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Modules[Idx].Write(Writer);
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}
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Writer.WriteArrayEnd();
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}
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}
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bool FModuleDescriptor::IsCompiledInCurrentConfiguration() const
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{
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// Cache the string for the current platform
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static FString UBTPlatform(FPlatformMisc::GetUBTPlatform());
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// Check the platform is whitelisted
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if(WhitelistPlatforms.Num() > 0 && !WhitelistPlatforms.Contains(UBTPlatform))
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{
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return false;
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}
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// Check the platform is not blacklisted
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if(BlacklistPlatforms.Num() > 0 && BlacklistPlatforms.Contains(UBTPlatform))
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{
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return false;
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}
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// Check the module is compatible with this target. This should match UEBuildTarget.ShouldIncludePluginModule in UBT
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switch (Type)
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{
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case EHostType::Runtime:
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case EHostType::RuntimeNoCommandlet:
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return true;
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case EHostType::Developer:
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#if WITH_UNREAL_DEVELOPER_TOOLS
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return true;
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#endif
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break;
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case EHostType::Editor:
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case EHostType::EditorNoCommandlet:
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#if WITH_EDITOR
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return true;
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#endif
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break;
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case EHostType::Program:
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#if IS_PROGRAM
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return true;
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#endif
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break;
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}
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return false;
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}
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bool FModuleDescriptor::IsLoadedInCurrentConfiguration() const
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{
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// Check that the module is built for this configuration
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if(!IsCompiledInCurrentConfiguration())
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{
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return false;
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}
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// Check that the runtime environment allows it to be loaded
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switch (Type)
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{
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case EHostType::Runtime:
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#if WITH_ENGINE || WITH_PLUGIN_SUPPORT
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return true;
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#endif
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break;
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case EHostType::RuntimeNoCommandlet:
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#if WITH_ENGINE || WITH_PLUGIN_SUPPORT
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if(!IsRunningCommandlet()) return true;
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#endif
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break;
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case EHostType::Developer:
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#if WITH_UNREAL_DEVELOPER_TOOLS
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return true;
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#endif
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break;
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case EHostType::Editor:
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#if WITH_EDITOR
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if(GIsEditor) return true;
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#endif
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break;
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case EHostType::EditorNoCommandlet:
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#if WITH_EDITOR
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if(GIsEditor && !IsRunningCommandlet()) return true;
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#endif
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break;
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case EHostType::Program:
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#if WITH_PLUGIN_SUPPORT && IS_PROGRAM
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return true;
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#endif
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break;
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}
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return false;
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}
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void FModuleDescriptor::LoadModulesForPhase(ELoadingPhase::Type LoadingPhase, const TArray<FModuleDescriptor>& Modules, TMap<FName, EModuleLoadResult>& ModuleLoadErrors)
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{
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for(int Idx = 0; Idx < Modules.Num(); Idx++)
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{
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const FModuleDescriptor& Descriptor = Modules[Idx];
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// Don't need to do anything if this module is already loaded
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if( !FModuleManager::Get().IsModuleLoaded( Descriptor.Name ) )
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{
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if( LoadingPhase == Descriptor.LoadingPhase && Descriptor.IsLoadedInCurrentConfiguration() )
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{
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// @todo plugin: DLL search problems. Plugins that statically depend on other modules within this plugin may not be found? Need to test this.
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// NOTE: Loading this module may cause other modules to become loaded, both in the engine or game, or other modules
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// that are part of this project or plugin. That's totally fine.
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EModuleLoadResult FailureReason;
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const TSharedPtr<IModuleInterface>& ModuleInterface = FModuleManager::Get().LoadModuleWithFailureReason( Descriptor.Name, FailureReason );
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if( ModuleInterface.IsValid() )
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{
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// Module loaded OK (or was already loaded.)
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}
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else
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{
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// The module failed to load. Note this in the ModuleLoadErrors list.
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ModuleLoadErrors.Add(Descriptor.Name, FailureReason);
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}
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}
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}
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}
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}
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bool FModuleDescriptor::AreModulesUpToDate(const TArray<FModuleDescriptor>& Modules)
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{
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for(int Idx = 0; Idx < Modules.Num(); Idx++)
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{
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const FModuleDescriptor &Module = Modules[Idx];
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if (Module.IsCompiledInCurrentConfiguration() && !FModuleManager::Get().IsModuleUpToDate(Module.Name))
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{
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return false;
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}
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}
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return true;
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}
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#undef LOCTEXT_NAMESPACE
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