#ifdef GEN_INTELLISENSE_DIRECTIVES #pragma once #include "types.hpp" #include "gen/ecode.hpp" #include "gen/eoperator.hpp" #include "gen/especifier.hpp" #endif /* ______ ______ ________ __ __ ______ __ / \ / \| \ | \ | \ / \ | \ | ▓▓▓▓▓▓\ ▓▓▓▓▓▓\\▓▓▓▓▓▓▓▓ | ▓▓\ | ▓▓ | ▓▓▓▓▓▓\ ______ ____| ▓▓ ______ | ▓▓__| ▓▓ ▓▓___\▓▓ | ▓▓ | ▓▓▓\| ▓▓ | ▓▓ \▓▓/ \ / ▓▓/ \ | ▓▓ ▓▓\▓▓ \ | ▓▓ | ▓▓▓▓\ ▓▓ | ▓▓ | ▓▓▓▓▓▓\ ▓▓▓▓▓▓▓ ▓▓▓▓▓▓\ | ▓▓▓▓▓▓▓▓_\▓▓▓▓▓▓\ | ▓▓ | ▓▓\▓▓ ▓▓ | ▓▓ __| ▓▓ | ▓▓ ▓▓ | ▓▓ ▓▓ ▓▓ | ▓▓ | ▓▓ \__| ▓▓ | ▓▓ | ▓▓ \▓▓▓▓ | ▓▓__/ \ ▓▓__/ ▓▓ ▓▓__| ▓▓ ▓▓▓▓▓▓▓▓ | ▓▓ | ▓▓\▓▓ ▓▓ | ▓▓ | ▓▓ \▓▓▓ \▓▓ ▓▓\▓▓ ▓▓\▓▓ ▓▓\▓▓ \ \▓▓ \▓▓ \▓▓▓▓▓▓ \▓▓ \▓▓ \▓▓ \▓▓▓▓▓▓ \▓▓▓▓▓▓ \▓▓▓▓▓▓▓ \▓▓▓▓▓▓▓ */ struct AST; struct AST_Body; struct AST_Attributes; struct AST_Comment; struct AST_Constructor; // struct AST_BaseClass; struct AST_Class; struct AST_Define; struct AST_Destructor; struct AST_Enum; struct AST_Exec; struct AST_Extern; struct AST_Include; struct AST_Friend; struct AST_Fn; struct AST_Module; struct AST_NS; struct AST_Operator; struct AST_OpCast; struct AST_Param; struct AST_Pragma; struct AST_PreprocessCond; struct AST_Specifiers; #if GEN_EXECUTION_EXPRESSION_SUPPORT struct AST_Expr; struct AST_Expr_Assign; struct AST_Expr_Alignof; struct AST_Expr_Binary; struct AST_Expr_CStyleCast; struct AST_Expr_FunctionalCast; struct AST_Expr_CppCast; struct AST_Expr_ProcCall; struct AST_Expr_Decltype; struct AST_Expr_Comma; // TODO(Ed) : This is a binary op not sure if it needs its own AST... struct AST_Expr_AMS; // Access Member Symbol struct AST_Expr_Sizeof; struct AST_Expr_Subscript; struct AST_Expr_Ternary; struct AST_Expr_UnaryPrefix; struct AST_Expr_UnaryPostfix; struct AST_Expr_Element; struct AST_Stmt; struct AST_Stmt_Break; struct AST_Stmt_Case; struct AST_Stmt_Continue; struct AST_Stmt_Decl; struct AST_Stmt_Do; struct AST_Stmt_Expr; // TODO(Ed) : Is this distinction needed? (Should it be a flag instead?) struct AST_Stmt_Else; struct AST_Stmt_If; struct AST_Stmt_For; struct AST_Stmt_Goto; struct AST_Stmt_Label; struct AST_Stmt_Switch; struct AST_Stmt_While; #endif struct AST_Struct; struct AST_Template; struct AST_Typename; struct AST_Typedef; struct AST_Union; struct AST_Using; struct AST_Var; #if GEN_COMPILER_C #define Define_Code(Type) typedef AST_##Type* Code##Type #else #define Define_Code(Type) struct Code##Type #endif #if GEN_COMPILER_C typedef AST* Code; #else struct Code; #endif Define_Code(Body); // These are to offer ease of use and optionally strong type safety for the AST. Define_Code(Attributes); // struct CodeBaseClass; Define_Code(Comment); Define_Code(Class); Define_Code(Constructor); Define_Code(Define); Define_Code(Destructor); Define_Code(Enum); Define_Code(Exec); Define_Code(Extern); Define_Code(Include); Define_Code(Friend); Define_Code(Fn); Define_Code(Module); Define_Code(NS); Define_Code(Operator); Define_Code(OpCast); Define_Code(Param); Define_Code(PreprocessCond); Define_Code(Pragma); Define_Code(Specifiers); #if GEN_EXECUTION_EXPRESSION_SUPPORT Define_Code(Expr); Define_Code(Expr_Assign); Define_Code(Expr_Alignof); Define_Code(Expr_Binary); Define_Code(Expr_CStyleCast); Define_Code(Expr_FunctionalCast); Define_Code(Expr_CppCast); Define_Code(Expr_Element); Define_Code(Expr_ProcCall); Define_Code(Expr_Decltype); Define_Code(Expr_Comma); Define_Code(Expr_AMS); // Access Member Symbol Define_Code(Expr_Sizeof); Define_Code(Expr_Subscript); Define_Code(Expr_Ternary); Define_Code(Expr_UnaryPrefix); Define_Code(Expr_UnaryPostfix); Define_Code(Stmt); Define_Code(Stmt_Break); Define_Code(Stmt_Case); Define_Code(Stmt_Continue); Define_Code(Stmt_Decl); Define_Code(Stmt_Do); Define_Code(Stmt_Expr); Define_Code(Stmt_Else); Define_Code(Stmt_If); Define_Code(Stmt_For); Define_Code(Stmt_Goto); Define_Code(Stmt_Label); Define_Code(Stmt_Switch); Define_Code(Stmt_While); #endif Define_Code(Struct); Define_Code(Template); Define_Code(Typename); Define_Code(Typedef); Define_Code(Union); Define_Code(Using); Define_Code(Var); #undef Define_Code GEN_NS_PARSER_BEGIN struct Token; GEN_NS_PARSER_END #if GEN_COMPILER_CPP // Note(Ed): This is to alleviate an edge case with parsing usings or typedefs where I don't really have it setup // to parse a 'namespace' macro or a type with a macro. // I have ideas for ways to pack that into the typedef/using ast, but for now just keeping it like this #define ParserTokenType GEN_NS_PARSER Token typedef ParserTokenType Token; #undef ParserTokenType #endif #if GEN_COMPILER_CPP template< class Type> forceinline Type tmpl_cast( Code self ) { return * rcast( Type*, & self ); } #endif #pragma region Code C-Interface void code_append (Code code, Code other ); StrC code_debug_str (Code code); Code code_duplicate (Code code); Code* code_entry (Code code, u32 idx ); bool code_has_entries (Code code); bool code_is_body (Code code); bool code_is_equal (Code code, Code other); bool code_is_valid (Code code); void code_set_global (Code code); String code_to_string (Code self ); void code_to_string_ptr(Code self, String* result ); StrC code_type_str (Code self ); bool code_validate_body(Code self ); #pragma endregion Code C-Interface #if GEN_COMPILER_CPP /* AST* wrapper - Not constantly have to append the '*' as this is written often.. - Allows for implicit conversion to any of the ASTs (raw or filtered). */ struct Code { AST* ast; # define Using_Code( Typename ) \ forceinline StrC debug_str() { return code_debug_str(* this); } \ forceinline Code duplicate() { return code_duplicate(* this); } \ forceinline bool is_equal( Code other ) { return code_is_equal(* this, other); } \ forceinline bool is_body() { return code_is_body(* this); } \ forceinline bool is_valid() { return code_is_valid(* this); } \ forceinline void set_global() { return code_set_global(* this); } # define Using_CodeOps( Typename ) \ forceinline Typename& operator = ( Code other ); \ forceinline bool operator ==( Code other ) { return (AST*)ast == other.ast; } \ forceinline bool operator !=( Code other ) { return (AST*)ast != other.ast; } \ forceinline bool operator ==(std::nullptr_t) const { return ast == nullptr; } \ forceinline bool operator !=(std::nullptr_t) const { return ast != nullptr; } \ operator bool(); #if ! GEN_C_LIKE_CPP Using_Code( Code ); forceinline void append(Code other) { return code_append(* this, other); } forceinline Code* entry(u32 idx) { return code_entry(* this, idx); } forceinline bool has_entries() { return code_has_entries(* this); } forceinline String to_string() { return code_to_string(* this); } forceinline void to_string(String& result) { return code_to_string_ptr(* this, & result); } forceinline StrC type_str() { return code_type_str(* this); } forceinline bool validate_body() { return code_validate_body(*this); } #endif Using_CodeOps( Code ); forceinline AST* operator ->() { return ast; } Code& operator ++(); // TODO(Ed) : Remove this overload. auto& operator*() { local_persist thread_local Code NullRef = { nullptr }; if ( ast == nullptr ) return NullRef; return *this; } #ifdef GEN_ENFORCE_STRONG_CODE_TYPES # define operator explicit operator #endif operator CodeBody() const; operator CodeAttributes() const; // operator CodeBaseClass() const; operator CodeComment() const; operator CodeClass() const; operator CodeConstructor() const; operator CodeDefine() const; operator CodeDestructor() const; operator CodeExec() const; operator CodeEnum() const; operator CodeExtern() const; operator CodeInclude() const; operator CodeFriend() const; operator CodeFn() const; operator CodeModule() const; operator CodeNS() const; operator CodeOperator() const; operator CodeOpCast() const; operator CodeParam() const; operator CodePragma() const; operator CodePreprocessCond() const; operator CodeSpecifiers() const; operator CodeStruct() const; operator CodeTemplate() const; operator CodeTypename() const; operator CodeTypedef() const; operator CodeUnion() const; operator CodeUsing() const; operator CodeVar() const; #undef operator }; #endif #pragma region Statics // Used to identify ASTs that should always be duplicated. (Global constant ASTs) extern Code Code_Global; // Used to identify invalid generated code. extern Code Code_Invalid; #pragma endregion Statics struct Code_POD { AST* ast; }; static_assert( sizeof(Code) == sizeof(Code_POD), "ERROR: Code is not POD" ); // Desired width of the AST data structure. constexpr int const AST_POD_Size = 128; constexpr static int AST_ArrSpecs_Cap = ( AST_POD_Size - sizeof(Code) - sizeof(StringCached) - sizeof(Code) * 2 - sizeof(Token*) - sizeof(Code) - sizeof(CodeType) - sizeof(ModuleFlag) - sizeof(u32) ) / sizeof(Specifier) - 1; /* Simple AST POD with functionality to seralize into C++ syntax. */ struct AST { union { struct { Code InlineCmt; // Class, Constructor, Destructor, Enum, Friend, Functon, Operator, OpCast, Struct, Typedef, Using, Variable Code Attributes; // Class, Enum, Function, Struct, Typedef, Union, Using, Variable Code Specs; // Destructor, Function, Operator, Typename, Variable union { Code InitializerList; // Constructor Code ParentType; // Class, Struct, ParentType->Next has a possible list of interfaces. Code ReturnType; // Function, Operator, Typename Code UnderlyingType; // Enum, Typedef Code ValueType; // Parameter, Variable }; union { Code Macro; // Parameter Code BitfieldSize; // Variable (Class/Struct Data Member) Code Params; // Constructor, Function, Operator, Template, Typename Code UnderlyingTypeMacro; // Enum }; union { Code ArrExpr; // Typename Code Body; // Class, Constructor, Destructor, Enum, Friend, Function, Namespace, Struct, Union Code Declaration; // Friend, Template Code Value; // Parameter, Variable }; union { Code NextVar; // Variable; Possible way to handle comma separated variables declarations. ( , NextVar->Specs NextVar->Name NextVar->ArrExpr = NextVar->Value ) Code SuffixSpecs; // Only used with typenames, to store the function suffix if typename is function signature. ( May not be needed ) Code PostNameMacro; // Only used with parameters for specifically UE_REQUIRES (Thanks Unreal) }; }; StringCached Content; // Attributes, Comment, Execution, Include struct { Specifier ArrSpecs[AST_ArrSpecs_Cap]; // Specifiers Code NextSpecs; // Specifiers; If ArrSpecs is full, then NextSpecs is used. }; }; StringCached Name; union { Code Prev; Code Front; Code Last; }; union { Code Next; Code Back; }; Token* Token; // Reference to starting token, only avaialble if it was derived from parsing. Code Parent; CodeType Type; // CodeFlag CodeFlags; ModuleFlag ModuleFlags; union { b32 IsFunction; // Used by typedef to not serialize the name field. struct { b16 IsParamPack; // Used by typename to know if type should be considered a parameter pack. ETypenameTag TypeTag; // Used by typename to keep track of explicitly declared tags for the identifier (enum, struct, union) }; Operator Op; AccessSpec ParentAccess; s32 NumEntries; s32 VarConstructorInit; // Used by variables to know that initialization is using a constructor expression instead of an assignment expression. }; }; static_assert( sizeof(AST) == AST_POD_Size, "ERROR: AST is not size of AST_POD_Size" ); #if GEN_COMPILER_CPP // Uses an implicitly overloaded cast from the AST to the desired code type. // Necessary if the user wants GEN_ENFORCE_STRONG_CODE_TYPES struct InvalidCode_ImplictCaster; #define InvalidCode (InvalidCode_ImplictCaster{}) #else #define InvalidCode { (void*)Code_Invalid } #endif #if GEN_COMPILER_CPP struct NullCode_ImplicitCaster; // Used when the its desired when omission is allowed in a definition. #define NullCode (NullCode_ImplicitCaster{}) #else #define NullCode nullptr #endif