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830 lines
22 KiB
C++
830 lines
22 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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/*=============================================================================
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ScriptDisassembler.cpp: Disassembler for Kismet bytecode.
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=============================================================================*/
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#include "UnrealEd.h"
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#include "ScriptDisassembler.h"
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DEFINE_LOG_CATEGORY_STATIC(LogScriptDisassembler, Log, All);
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/////////////////////////////////////////////////////
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// FKismetBytecodeDisassembler
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// Construct a disassembler that will output to the specified archive.
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FKismetBytecodeDisassembler::FKismetBytecodeDisassembler(FOutputDevice& InAr)
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: Ar(InAr)
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{
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InitTables();
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}
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// Disassemble all of the script code in a single structure.
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void FKismetBytecodeDisassembler::DisassembleStructure(UFunction* Source)
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{
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Script.Empty();
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Script.Append(Source->Script);
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int32 ScriptIndex = 0;
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while (ScriptIndex < Script.Num())
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{
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Ar.Logf(TEXT("Label_0x%X:"), ScriptIndex);
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AddIndent();
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SerializeExpr(ScriptIndex);
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DropIndent();
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}
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}
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// Disassemble all functions in any classes that have matching names.
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void FKismetBytecodeDisassembler::DisassembleAllFunctionsInClasses(FOutputDevice& Ar, const FString& ClassnameSubstring)
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{
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FKismetBytecodeDisassembler Disasm(Ar);
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for (TObjectIterator<UClass> ClassIter; ClassIter; ++ClassIter)
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{
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UClass* Class = *ClassIter;
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FString ClassName = Class->GetName();
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if (FCString::Strfind(*ClassName, *ClassnameSubstring))
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{
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Ar.Logf(TEXT("Processing class %s"), *ClassName);
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for (TFieldIterator<UFunction> FunctionIter(Class, EFieldIteratorFlags::ExcludeSuper); FunctionIter; ++FunctionIter)
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{
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UFunction* Function = *FunctionIter;
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FString FunctionName = Function->GetName();
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Ar.Logf(TEXT(" Processing function %s (%d bytes)"), *FunctionName, Function->Script.Num());
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Disasm.DisassembleStructure(Function);
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Ar.Logf(TEXT(""));
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}
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Ar.Logf(TEXT(""));
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Ar.Logf(TEXT("-----------"));
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Ar.Logf(TEXT(""));
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}
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}
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}
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EExprToken FKismetBytecodeDisassembler::SerializeExpr(int32& ScriptIndex)
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{
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AddIndent();
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EExprToken Opcode = (EExprToken)Script[ScriptIndex];
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ScriptIndex++;
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ProcessCommon(ScriptIndex, Opcode);
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DropIndent();
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return Opcode;
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}
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int32 FKismetBytecodeDisassembler::ReadINT(int32& ScriptIndex)
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{
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int32 Value = Script[ScriptIndex]; ++ScriptIndex;
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Value = Value | ((int32)Script[ScriptIndex] << 8); ++ScriptIndex;
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Value = Value | ((int32)Script[ScriptIndex] << 16); ++ScriptIndex;
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Value = Value | ((int32)Script[ScriptIndex] << 24); ++ScriptIndex;
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return Value;
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}
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uint64 FKismetBytecodeDisassembler::ReadQWORD(int32& ScriptIndex)
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{
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uint64 Value = Script[ScriptIndex]; ++ScriptIndex;
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Value = Value | ((uint64)Script[ScriptIndex] << 8); ++ScriptIndex;
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Value = Value | ((uint64)Script[ScriptIndex] << 16); ++ScriptIndex;
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Value = Value | ((uint64)Script[ScriptIndex] << 24); ++ScriptIndex;
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Value = Value | ((uint64)Script[ScriptIndex] << 32); ++ScriptIndex;
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Value = Value | ((uint64)Script[ScriptIndex] << 40); ++ScriptIndex;
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Value = Value | ((uint64)Script[ScriptIndex] << 48); ++ScriptIndex;
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Value = Value | ((uint64)Script[ScriptIndex] << 56); ++ScriptIndex;
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return Value;
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}
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uint8 FKismetBytecodeDisassembler::ReadBYTE(int32& ScriptIndex)
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{
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uint8 Value = Script[ScriptIndex]; ++ScriptIndex;
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return Value;
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}
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FString FKismetBytecodeDisassembler::ReadName(int32& ScriptIndex)
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{
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const FScriptName ConstValue = *(FScriptName*)(Script.GetData() + ScriptIndex);
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ScriptIndex += sizeof(FScriptName);
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return ScriptNameToName(ConstValue).ToString();
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}
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uint16 FKismetBytecodeDisassembler::ReadWORD(int32& ScriptIndex)
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{
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uint16 Value = Script[ScriptIndex]; ++ScriptIndex;
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Value = Value | ((uint16)Script[ScriptIndex] << 8); ++ScriptIndex;
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return Value;
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}
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float FKismetBytecodeDisassembler::ReadFLOAT(int32& ScriptIndex)
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{
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union { float f; int32 i; } Result;
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Result.i = ReadINT(ScriptIndex);
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return Result.f;
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}
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CodeSkipSizeType FKismetBytecodeDisassembler::ReadSkipCount(int32& ScriptIndex)
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{
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#if SCRIPT_LIMIT_BYTECODE_TO_64KB
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return ReadWORD(ScriptIndex);
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#else
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static_assert(sizeof(CodeSkipSizeType) == 4, "Update this code as size changed.");
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return ReadINT(ScriptIndex);
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#endif
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}
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FString FKismetBytecodeDisassembler::ReadString8(int32& ScriptIndex)
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{
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FString Result;
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do
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{
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Result += ReadBYTE(ScriptIndex);
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}
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while (Script[ScriptIndex-1] != 0);
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return Result;
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}
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FString FKismetBytecodeDisassembler::ReadString16(int32& ScriptIndex)
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{
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FString Result;
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do
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{
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Result += ReadWORD(ScriptIndex);
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}
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while ((Script[ScriptIndex-1] != 0) || (Script[ScriptIndex-2] != 0));
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return Result;
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}
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void FKismetBytecodeDisassembler::ProcessCastByte(int32 CastType, int32& ScriptIndex)
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{
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// Expression of cast
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SerializeExpr(ScriptIndex);
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}
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void FKismetBytecodeDisassembler::ProcessCommon(int32& ScriptIndex, EExprToken Opcode)
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{
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switch (Opcode)
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{
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case EX_PrimitiveCast:
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{
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// A type conversion.
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uint8 ConversionType = ReadBYTE(ScriptIndex);
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Ar.Logf(TEXT("%s $%X: PrimitiveCast of type %d"), *Indents, (int32)Opcode, ConversionType);
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AddIndent();
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Ar.Logf(TEXT("%s Argument:"), *Indents);
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ProcessCastByte(ConversionType, ScriptIndex);
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//@TODO:
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//Ar.Logf(TEXT("%s Expression:"), *Indents);
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//SerializeExpr( ScriptIndex );
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break;
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}
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case EX_ObjToInterfaceCast:
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{
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// A conversion from an object variable to a native interface variable.
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// We use a different bytecode to avoid the branching each time we process a cast token
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// the interface class to convert to
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UClass* InterfaceClass = ReadPointer<UClass>(ScriptIndex);
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Ar.Logf(TEXT("%s $%X: ObjToInterfaceCast to %s"), *Indents, (int32)Opcode, *InterfaceClass->GetName());
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SerializeExpr( ScriptIndex );
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break;
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}
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case EX_CrossInterfaceCast:
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{
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// A conversion from one interface variable to a different interface variable.
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// We use a different bytecode to avoid the branching each time we process a cast token
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// the interface class to convert to
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UClass* InterfaceClass = ReadPointer<UClass>(ScriptIndex);
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Ar.Logf(TEXT("%s $%X: InterfaceToInterfaceCast to %s"), *Indents, (int32)Opcode, *InterfaceClass->GetName());
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SerializeExpr( ScriptIndex );
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break;
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}
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case EX_InterfaceToObjCast:
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{
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// A conversion from an interface variable to a object variable.
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// We use a different bytecode to avoid the branching each time we process a cast token
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// the interface class to convert to
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UClass* ObjectClass = ReadPointer<UClass>(ScriptIndex);
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Ar.Logf(TEXT("%s $%X: InterfaceToObjCast to %s"), *Indents, (int32)Opcode, *ObjectClass->GetName());
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SerializeExpr( ScriptIndex );
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break;
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}
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case EX_Let:
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{
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Ar.Logf(TEXT("%s $%X: Let (Variable = Expression)"), *Indents, (int32)Opcode);
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AddIndent();
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ReadPointer<UProperty>(ScriptIndex);
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// Variable expr.
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Ar.Logf(TEXT("%s Variable:"), *Indents);
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SerializeExpr( ScriptIndex );
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// Assignment expr.
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Ar.Logf(TEXT("%s Expression:"), *Indents);
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SerializeExpr( ScriptIndex );
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DropIndent();
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break;
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}
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case EX_LetObj:
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case EX_LetWeakObjPtr:
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{
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if( Opcode == EX_LetObj )
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{
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Ar.Logf(TEXT("%s $%X: Let Obj (Variable = Expression)"), *Indents, (int32)Opcode);
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}
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else
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{
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Ar.Logf(TEXT("%s $%X: Let WeakObjPtr (Variable = Expression)"), *Indents, (int32)Opcode);
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}
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AddIndent();
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// Variable expr.
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Ar.Logf(TEXT("%s Variable:"), *Indents);
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SerializeExpr( ScriptIndex );
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// Assignment expr.
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Ar.Logf(TEXT("%s Expression:"), *Indents);
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SerializeExpr( ScriptIndex );
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DropIndent();
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break;
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}
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case EX_LetBool:
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{
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Ar.Logf(TEXT("%s $%X: LetBool (Variable = Expression)"), *Indents, (int32)Opcode);
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AddIndent();
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// Variable expr.
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Ar.Logf(TEXT("%s Variable:"), *Indents);
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SerializeExpr( ScriptIndex );
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// Assignment expr.
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Ar.Logf(TEXT("%s Expression:"), *Indents);
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SerializeExpr( ScriptIndex );
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DropIndent();
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break;
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}
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case Ex_LetValueOnPersistentFrame:
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{
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Ar.Logf(TEXT("%s $%X: LetValueOnPersistentFrame"), *Indents, (int32)Opcode);
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AddIndent();
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auto Prop = ReadPointer<UProperty>(ScriptIndex);
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Ar.Logf(TEXT("%s Destination variable: %s, offset: %d"), *Indents, *GetNameSafe(Prop),
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Prop ? Prop->GetOffset_ForDebug() : 0);
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Ar.Logf(TEXT("%s Expression:"), *Indents);
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SerializeExpr(ScriptIndex);
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DropIndent();
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break;
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}
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case EX_StructMemberContext:
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{
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Ar.Logf(TEXT("%s $%X: Struct member context "), *Indents, (int32)Opcode);
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AddIndent();
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UProperty* Prop = ReadPointer<UProperty>(ScriptIndex);
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Ar.Logf(TEXT("%s Expression within struct %s, offset %d"), *Indents, *(Prop->GetName()),
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Prop->GetOffset_ForDebug()); // although that isn't a UFunction, we are not going to indirect the props of a struct, so this should be fine
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Ar.Logf(TEXT("%s Expression to struct:"), *Indents);
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SerializeExpr( ScriptIndex );
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DropIndent();
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break;
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}
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case EX_LetDelegate:
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{
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Ar.Logf(TEXT("%s $%X: LetDelegate (Variable = Expression)"), *Indents, (int32)Opcode);
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AddIndent();
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// Variable expr.
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Ar.Logf(TEXT("%s Variable:"), *Indents);
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SerializeExpr( ScriptIndex );
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// Assignment expr.
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Ar.Logf(TEXT("%s Expression:"), *Indents);
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SerializeExpr( ScriptIndex );
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DropIndent();
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break;
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}
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case EX_LetMulticastDelegate:
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{
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Ar.Logf(TEXT("%s $%X: LetMulticastDelegate (Variable = Expression)"), *Indents, (int32)Opcode);
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AddIndent();
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// Variable expr.
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Ar.Logf(TEXT("%s Variable:"), *Indents);
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SerializeExpr( ScriptIndex );
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// Assignment expr.
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Ar.Logf(TEXT("%s Expression:"), *Indents);
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SerializeExpr( ScriptIndex );
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DropIndent();
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break;
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}
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case EX_ComputedJump:
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{
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Ar.Logf(TEXT("%s $%X: Computed Jump, offset specified by expression:"), *Indents, (int32)Opcode);
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AddIndent();
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SerializeExpr( ScriptIndex );
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DropIndent();
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break;
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}
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case EX_Jump:
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{
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CodeSkipSizeType SkipCount = ReadSkipCount(ScriptIndex);
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Ar.Logf(TEXT("%s $%X: Jump to offset 0x%X"), *Indents, (int32)Opcode, SkipCount);
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break;
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}
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case EX_LocalVariable:
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{
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UProperty* PropertyPtr = ReadPointer<UProperty>(ScriptIndex);
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Ar.Logf(TEXT("%s $%X: Local variable named %s"), *Indents, (int32)Opcode, PropertyPtr ? *PropertyPtr->GetName() : TEXT("(null)"));
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break;
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}
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case EX_DefaultVariable:
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{
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UProperty* PropertyPtr = ReadPointer<UProperty>(ScriptIndex);
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Ar.Logf(TEXT("%s $%X: Default variable named %s"), *Indents, (int32)Opcode, PropertyPtr ? *PropertyPtr->GetName() : TEXT("(null)"));
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break;
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}
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case EX_InstanceVariable:
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{
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UProperty* PropertyPtr = ReadPointer<UProperty>(ScriptIndex);
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Ar.Logf(TEXT("%s $%X: Instance variable named %s"), *Indents, (int32)Opcode, PropertyPtr ? *PropertyPtr->GetName() : TEXT("(null)"));
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break;
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}
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case EX_LocalOutVariable:
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{
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UProperty* PropertyPtr = ReadPointer<UProperty>(ScriptIndex);
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Ar.Logf(TEXT("%s $%X: Local out variable named %s"), *Indents, (int32)Opcode, PropertyPtr ? *PropertyPtr->GetName() : TEXT("(null)"));
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break;
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}
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case EX_InterfaceContext:
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{
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Ar.Logf(TEXT("%s $%X: EX_InterfaceContext:"), *Indents, (int32)Opcode);
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SerializeExpr(ScriptIndex);
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break;
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}
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case EX_DeprecatedOp4A:
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{
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Ar.Logf(TEXT("%s $%X: This opcode has been removed and does nothing."), *Indents, (int32)Opcode);
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break;
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}
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case EX_Nothing:
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{
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Ar.Logf(TEXT("%s $%X: EX_Nothing"), *Indents, (int32)Opcode);
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break;
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}
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case EX_EndOfScript:
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{
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Ar.Logf(TEXT("%s $%X: EX_EndOfScript"), *Indents, (int32)Opcode);
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break;
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}
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case EX_EndFunctionParms:
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{
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Ar.Logf(TEXT("%s $%X: EX_EndFunctionParms"), *Indents, (int32)Opcode);
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break;
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}
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case EX_EndStructConst:
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{
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Ar.Logf(TEXT("%s $%X: EX_EndStructConst"), *Indents, (int32)Opcode);
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break;
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}
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case EX_EndArray:
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{
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Ar.Logf(TEXT("%s $%X: EX_EndArray"), *Indents, (int32)Opcode);
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break;
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}
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case EX_EndArrayConst:
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{
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Ar.Logf(TEXT("%s $%X: EX_EndArrayConst"), *Indents, (int32)Opcode);
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break;
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}
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case EX_IntZero:
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{
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Ar.Logf(TEXT("%s $%X: EX_IntZero"), *Indents, (int32)Opcode);
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break;
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}
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case EX_IntOne:
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{
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Ar.Logf(TEXT("%s $%X: EX_IntOne"), *Indents, (int32)Opcode);
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break;
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}
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case EX_True:
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{
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Ar.Logf(TEXT("%s $%X: EX_True"), *Indents, (int32)Opcode);
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break;
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}
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case EX_False:
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{
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Ar.Logf(TEXT("%s $%X: EX_False"), *Indents, (int32)Opcode);
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break;
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}
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case EX_NoObject:
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{
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Ar.Logf(TEXT("%s $%X: EX_NoObject"), *Indents, (int32)Opcode);
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break;
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}
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case EX_NoInterface:
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{
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Ar.Logf(TEXT("%s $%X: EX_NoObject"), *Indents, (int32)Opcode);
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break;
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}
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case EX_Self:
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{
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Ar.Logf(TEXT("%s $%X: EX_Self"), *Indents, (int32)Opcode);
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break;
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}
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case EX_EndParmValue:
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{
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Ar.Logf(TEXT("%s $%X: EX_EndParmValue"), *Indents, (int32)Opcode);
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break;
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}
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case EX_Return:
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{
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Ar.Logf(TEXT("%s $%X: Return expression"), *Indents, (int32)Opcode);
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SerializeExpr( ScriptIndex ); // Return expression.
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break;
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}
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case EX_CallMath:
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{
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UStruct* StackNode = ReadPointer<UStruct>(ScriptIndex);
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Ar.Logf(TEXT("%s $%X: Call Math (stack node %s::%s)"), *Indents, (int32)Opcode, *GetNameSafe(StackNode ? StackNode->GetOuter() : nullptr), *GetNameSafe(StackNode));
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while (SerializeExpr(ScriptIndex) != EX_EndFunctionParms)
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{
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// Params
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}
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break;
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}
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case EX_FinalFunction:
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{
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UStruct* StackNode = ReadPointer<UStruct>(ScriptIndex);
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Ar.Logf(TEXT("%s $%X: Final Function (stack node %s::%s)"), *Indents, (int32)Opcode, StackNode ? *StackNode->GetOuter()->GetName() : TEXT("(null)"), StackNode ? *StackNode->GetName() : TEXT("(null)"));
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while (SerializeExpr( ScriptIndex ) != EX_EndFunctionParms)
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{
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// Params
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}
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break;
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}
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case EX_CallMulticastDelegate:
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{
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UStruct* StackNode = ReadPointer<UStruct>(ScriptIndex);
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Ar.Logf(TEXT("%s $%X: CallMulticastDelegate (signature %s::%s) delegate:"), *Indents, (int32)Opcode, StackNode ? *StackNode->GetOuter()->GetName() : TEXT("(null)"), StackNode ? *StackNode->GetName() : TEXT("(null)"));
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SerializeExpr( ScriptIndex );
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Ar.Logf(TEXT("Params:"));
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while (SerializeExpr( ScriptIndex ) != EX_EndFunctionParms)
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{
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// Params
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}
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break;
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}
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case EX_VirtualFunction:
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{
|
|
FString FunctionName = ReadName(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: Virtual Function named %s"), *Indents, (int32)Opcode, *FunctionName);
|
|
|
|
while (SerializeExpr(ScriptIndex) != EX_EndFunctionParms)
|
|
{
|
|
}
|
|
break;
|
|
}
|
|
case EX_ClassContext:
|
|
case EX_Context:
|
|
case EX_Context_FailSilent:
|
|
{
|
|
Ar.Logf(TEXT("%s $%X: %s"), *Indents, (int32)Opcode, Opcode == EX_ClassContext ? TEXT("Class Context") : TEXT("Context"));
|
|
AddIndent();
|
|
|
|
// Object expression.
|
|
Ar.Logf(TEXT("%s ObjectExpression:"), *Indents);
|
|
SerializeExpr( ScriptIndex );
|
|
|
|
if (Opcode == EX_Context_FailSilent)
|
|
{
|
|
Ar.Logf(TEXT(" Can fail silently on access none "));
|
|
}
|
|
|
|
// Code offset for NULL expressions.
|
|
CodeSkipSizeType SkipCount = ReadSkipCount(ScriptIndex);
|
|
Ar.Logf(TEXT("%s Skip Bytes: 0x%X"), *Indents, SkipCount);
|
|
|
|
// Property corresponding to the r-value data, in case the l-value needs to be mem-zero'd
|
|
UField* Field = ReadPointer<UField>(ScriptIndex);
|
|
Ar.Logf(TEXT("%s R-Value Property: %s"), *Indents, Field ? *Field->GetName() : TEXT("(null)"));
|
|
|
|
// Context expression.
|
|
Ar.Logf(TEXT("%s ContextExpression:"), *Indents);
|
|
SerializeExpr( ScriptIndex );
|
|
|
|
DropIndent();
|
|
break;
|
|
}
|
|
case EX_IntConst:
|
|
{
|
|
int32 ConstValue = ReadINT(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: literal int32 %d"), *Indents, (int32)Opcode, ConstValue);
|
|
break;
|
|
}
|
|
case EX_SkipOffsetConst:
|
|
{
|
|
CodeSkipSizeType ConstValue = ReadSkipCount(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: literal CodeSkipSizeType 0x%X"), *Indents, (int32)Opcode, ConstValue);
|
|
break;
|
|
}
|
|
case EX_FloatConst:
|
|
{
|
|
float ConstValue = ReadFLOAT(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: literal float %f"), *Indents, (int32)Opcode, ConstValue);
|
|
break;
|
|
}
|
|
case EX_StringConst:
|
|
{
|
|
FString ConstValue = ReadString8(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: literal ansi string \"%s\""), *Indents, (int32)Opcode, *ConstValue);
|
|
break;
|
|
}
|
|
case EX_UnicodeStringConst:
|
|
{
|
|
FString ConstValue = ReadString16(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: literal unicode string \"%s\""), *Indents, (int32)Opcode, *ConstValue);
|
|
break;
|
|
}
|
|
case EX_TextConst:
|
|
{
|
|
Ar.Logf(TEXT("%s $%X: literal text"), *Indents, (int32)Opcode);
|
|
break;
|
|
}
|
|
case EX_ObjectConst:
|
|
{
|
|
UObject* Pointer = ReadPointer<UObject>(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: EX_ObjectConst (%p:%s)"), *Indents, (int32)Opcode, Pointer, *Pointer->GetFullName());
|
|
break;
|
|
}
|
|
case EX_AssetConst:
|
|
{
|
|
Ar.Logf(TEXT("%s $%X: EX_AssetConst"), *Indents, (int32)Opcode);
|
|
SerializeExpr(ScriptIndex);
|
|
break;
|
|
}
|
|
case EX_NameConst:
|
|
{
|
|
FString ConstValue = ReadName(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: literal name %s"), *Indents, (int32)Opcode, *ConstValue);
|
|
break;
|
|
}
|
|
case EX_RotationConst:
|
|
{
|
|
float Pitch = ReadFLOAT(ScriptIndex);
|
|
float Yaw = ReadFLOAT(ScriptIndex);
|
|
float Roll = ReadFLOAT(ScriptIndex);
|
|
|
|
Ar.Logf(TEXT("%s $%X: literal rotation (%f,%f,%f)"), *Indents, (int32)Opcode, Pitch, Yaw, Roll);
|
|
break;
|
|
}
|
|
case EX_VectorConst:
|
|
{
|
|
float X = ReadFLOAT(ScriptIndex);
|
|
float Y = ReadFLOAT(ScriptIndex);
|
|
float Z = ReadFLOAT(ScriptIndex);
|
|
|
|
Ar.Logf(TEXT("%s $%X: literal vector (%f,%f,%f)"), *Indents, (int32)Opcode, X, Y, Z);
|
|
break;
|
|
}
|
|
case EX_TransformConst:
|
|
{
|
|
|
|
float RotX = ReadFLOAT(ScriptIndex);
|
|
float RotY = ReadFLOAT(ScriptIndex);
|
|
float RotZ = ReadFLOAT(ScriptIndex);
|
|
float RotW = ReadFLOAT(ScriptIndex);
|
|
|
|
float TransX = ReadFLOAT(ScriptIndex);
|
|
float TransY = ReadFLOAT(ScriptIndex);
|
|
float TransZ = ReadFLOAT(ScriptIndex);
|
|
|
|
float ScaleX = ReadFLOAT(ScriptIndex);
|
|
float ScaleY = ReadFLOAT(ScriptIndex);
|
|
float ScaleZ = ReadFLOAT(ScriptIndex);
|
|
|
|
Ar.Logf(TEXT("%s $%X: literal transform R(%f,%f,%f,%f) T(%f,%f,%f) S(%f,%f,%f)"), *Indents, (int32)Opcode, TransX, TransY, TransZ, RotX, RotY, RotZ, RotW, ScaleX, ScaleY, ScaleZ);
|
|
break;
|
|
}
|
|
case EX_StructConst:
|
|
{
|
|
UScriptStruct* Struct = ReadPointer<UScriptStruct>(ScriptIndex);
|
|
int32 SerializedSize = ReadINT(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: literal struct %s (serialized size: %d)"), *Indents, (int32)Opcode, *Struct->GetName(), SerializedSize);
|
|
while( SerializeExpr(ScriptIndex) != EX_EndStructConst )
|
|
{
|
|
// struct contents
|
|
}
|
|
break;
|
|
}
|
|
case EX_SetArray:
|
|
{
|
|
Ar.Logf(TEXT("%s $%X: set array"), *Indents, (int32)Opcode);
|
|
SerializeExpr(ScriptIndex);
|
|
while( SerializeExpr(ScriptIndex) != EX_EndArray)
|
|
{
|
|
// Array contents
|
|
}
|
|
break;
|
|
}
|
|
case EX_ArrayConst:
|
|
{
|
|
UProperty* InnerProp = ReadPointer<UProperty>(ScriptIndex);
|
|
int32 Num = ReadINT(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: set array const - elements number: %d, inner property: %s"), *Indents, (int32)Opcode, Num, *GetNameSafe(InnerProp));
|
|
while (SerializeExpr(ScriptIndex) != EX_EndArrayConst)
|
|
{
|
|
// Array contents
|
|
}
|
|
break;
|
|
}
|
|
case EX_ByteConst:
|
|
{
|
|
uint8 ConstValue = ReadBYTE(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: literal byte %d"), *Indents, (int32)Opcode, ConstValue);
|
|
break;
|
|
}
|
|
case EX_IntConstByte:
|
|
{
|
|
int32 ConstValue = ReadBYTE(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: literal int %d"), *Indents, (int32)Opcode, ConstValue);
|
|
break;
|
|
}
|
|
case EX_MetaCast:
|
|
{
|
|
UClass* Class = ReadPointer<UClass>(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: MetaCast to %s of expr:"), *Indents, (int32)Opcode, *Class->GetName());
|
|
SerializeExpr( ScriptIndex );
|
|
break;
|
|
}
|
|
case EX_DynamicCast:
|
|
{
|
|
UClass* Class = ReadPointer<UClass>(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: DynamicCast to %s of expr:"), *Indents, (int32)Opcode, *Class->GetName());
|
|
SerializeExpr( ScriptIndex );
|
|
break;
|
|
}
|
|
case EX_JumpIfNot:
|
|
{
|
|
// Code offset.
|
|
CodeSkipSizeType SkipCount = ReadSkipCount(ScriptIndex);
|
|
|
|
Ar.Logf(TEXT("%s $%X: Jump to offset 0x%X if not expr:"), *Indents, (int32)Opcode, SkipCount);
|
|
|
|
// Boolean expr.
|
|
SerializeExpr( ScriptIndex );
|
|
break;
|
|
}
|
|
case EX_Assert:
|
|
{
|
|
uint16 LineNumber = ReadWORD(ScriptIndex);
|
|
uint8 InDebugMode = ReadBYTE(ScriptIndex);
|
|
|
|
Ar.Logf(TEXT("%s $%X: assert at line %d, in debug mode = %d with expr:"), *Indents, (int32)Opcode, LineNumber, InDebugMode);
|
|
SerializeExpr( ScriptIndex ); // Assert expr.
|
|
break;
|
|
}
|
|
case EX_Skip:
|
|
{
|
|
CodeSkipSizeType W = ReadSkipCount(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: possibly skip 0x%X bytes of expr:"), *Indents, (int32)Opcode, W);
|
|
|
|
// Expression to possibly skip.
|
|
SerializeExpr( ScriptIndex );
|
|
|
|
break;
|
|
}
|
|
case EX_InstanceDelegate:
|
|
{
|
|
// the name of the function assigned to the delegate.
|
|
FString FuncName = ReadName(ScriptIndex);
|
|
|
|
Ar.Logf(TEXT("%s $%X: instance delegate function named %s"), *Indents, (int32)Opcode, *FuncName);
|
|
break;
|
|
}
|
|
case EX_AddMulticastDelegate:
|
|
{
|
|
Ar.Logf(TEXT("%s $%X: Add MC delegate"), *Indents, (int32)Opcode);
|
|
SerializeExpr( ScriptIndex );
|
|
SerializeExpr( ScriptIndex );
|
|
break;
|
|
}
|
|
case EX_RemoveMulticastDelegate:
|
|
{
|
|
Ar.Logf(TEXT("%s $%X: Remove MC delegate"), *Indents, (int32)Opcode);
|
|
SerializeExpr( ScriptIndex );
|
|
SerializeExpr( ScriptIndex );
|
|
break;
|
|
}
|
|
case EX_ClearMulticastDelegate:
|
|
{
|
|
Ar.Logf(TEXT("%s $%X: Clear MC delegate"), *Indents, (int32)Opcode);
|
|
SerializeExpr( ScriptIndex );
|
|
break;
|
|
}
|
|
case EX_BindDelegate:
|
|
{
|
|
// the name of the function assigned to the delegate.
|
|
FString FuncName = ReadName(ScriptIndex);
|
|
|
|
Ar.Logf(TEXT("%s $%X: BindDelegate '%s' "), *Indents, (int32)Opcode, *FuncName);
|
|
|
|
Ar.Logf(TEXT("%s Delegate:"), *Indents);
|
|
SerializeExpr( ScriptIndex );
|
|
|
|
Ar.Logf(TEXT("%s Object:"), *Indents);
|
|
SerializeExpr( ScriptIndex );
|
|
|
|
break;
|
|
}
|
|
case EX_PushExecutionFlow:
|
|
{
|
|
CodeSkipSizeType SkipCount = ReadSkipCount(ScriptIndex);
|
|
Ar.Logf(TEXT("%s $%X: FlowStack.Push(0x%X);"), *Indents, (int32)Opcode, SkipCount);
|
|
break;
|
|
}
|
|
case EX_PopExecutionFlow:
|
|
{
|
|
Ar.Logf(TEXT("%s $%X: if (FlowStack.Num()) { jump to statement at FlowStack.Pop(); } else { ERROR!!! }"), *Indents, (int32)Opcode);
|
|
break;
|
|
}
|
|
case EX_PopExecutionFlowIfNot:
|
|
{
|
|
Ar.Logf(TEXT("%s $%X: if (!condition) { if (FlowStack.Num()) { jump to statement at FlowStack.Pop(); } else { ERROR!!! } }"), *Indents, (int32)Opcode);
|
|
// Boolean expr.
|
|
SerializeExpr( ScriptIndex );
|
|
break;
|
|
}
|
|
case EX_Breakpoint:
|
|
{
|
|
Ar.Logf(TEXT("%s $%X: <<< BREAKPOINT >>>"), *Indents, (int32)Opcode);
|
|
break;
|
|
}
|
|
case EX_WireTracepoint:
|
|
{
|
|
Ar.Logf(TEXT("%s $%X: .. wire debug site .."), *Indents, (int32)Opcode);
|
|
break;
|
|
}
|
|
case EX_Tracepoint:
|
|
{
|
|
Ar.Logf(TEXT("%s $%X: .. debug site .."), *Indents, (int32)Opcode);
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
// This should never occur.
|
|
UE_LOG(LogScriptDisassembler, Warning, TEXT("Unknown bytecode 0x%02X; ignoring it"), (uint8)Opcode );
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void FKismetBytecodeDisassembler::InitTables()
|
|
{
|
|
}
|