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65 lines
2.8 KiB
C++
65 lines
2.8 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "ScriptCodeGeneratorBase.h"
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/**
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* Lua glue generator.
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*/
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class FLuaScriptCodeGenerator : public FScriptCodeGeneratorBase
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{
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protected:
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struct FPropertyAccessor
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{
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FString FunctionName;
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FString AccessorName;
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};
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/** All generated script header filenames */
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TArray<FString> AllScriptHeaders;
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/** Source header filenames for all exported classes */
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TArray<FString> AllSourceClassHeaders;
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/** All exported classes */
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TArray<UClass*> LuaExportedClasses;
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/** Functions exported for a class */
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TMap<UClass*, TArray<FName> > ClassExportedFunctions;
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/** Proprties exported for a class */
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TMap<UClass*, TArray<FPropertyAccessor> > ClassExportedProperties;
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/** Creats a 'glue' file that merges all generated script files */
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void GlueAllGeneratedFiles();
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/** Exports a wrapper function */
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FString ExportFunction(const FString& ClassNameCPP, UClass* Class, UFunction* Function);
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/** Exports a wrapper functions for properties */
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FString ExportProperty(const FString& ClassNameCPP, UClass* Class, FProperty* Property, int32 PropertyIndex);
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/** Exports additional class glue code (like ctor/dtot) */
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FString ExportAdditionalClassGlue(const FString& ClassNameCPP, UClass* Class);
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/** Generates wrapper function declaration */
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FString GenerateWrapperFunctionDeclaration(const FString& ClassNameCPP, UClass* Class, UFunction* Function);
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/** Generates wrapper function declaration */
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FString GenerateWrapperFunctionDeclaration(const FString& ClassNameCPP, UClass* Class, const FString& FunctionName);
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/** Generates code responsible for getting the object pointer from script context */
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FString GenerateObjectDeclarationFromContext(const FString& ClassNameCPP, UClass* Class);
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/** Handles the wrapped function's return value */
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FString GenerateReturnValueHandler(const FString& ClassNameCPP, UClass* Class, UFunction* Function, FProperty* ReturnValue, const FString& ReturnValueName);
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/** Check if a property type is supported */
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bool IsPropertyTypeSupported(FProperty* Property) const;
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// FScriptCodeGeneratorBase interface
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virtual bool CanExportClass(UClass* Class) override;
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virtual bool CanExportFunction(const FString& ClassNameCPP, UClass* Class, UFunction* Function) override;
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virtual bool CanExportProperty(const FString& ClassNameCPP, UClass* Class, FProperty* Property) override;
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virtual FString InitializeFunctionDispatchParam(UFunction* Function, FProperty* Param, int32 ParamIndex) override;
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public:
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FLuaScriptCodeGenerator(const FString& RootLocalPath, const FString& RootBuildPath, const FString& OutputDirectory, const FString& InIncludeBase);
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// FScriptCodeGeneratorBase interface
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virtual void ExportClass(UClass* Class, const FString& SourceHeaderFilename, const FString& GeneratedHeaderFilename, bool bHasChanged) override;
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virtual void FinishExport() override;
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};
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