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Diffstat (limited to 'src/3rdparty/angle/src/compiler/ParseHelper.h')
-rw-r--r-- | src/3rdparty/angle/src/compiler/ParseHelper.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/ParseHelper.h b/src/3rdparty/angle/src/compiler/ParseHelper.h new file mode 100644 index 0000000000..824ee00f39 --- /dev/null +++ b/src/3rdparty/angle/src/compiler/ParseHelper.h @@ -0,0 +1,140 @@ +// +// Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// +#ifndef _PARSER_HELPER_INCLUDED_ +#define _PARSER_HELPER_INCLUDED_ + +#include "compiler/Diagnostics.h" +#include "compiler/DirectiveHandler.h" +#include "compiler/localintermediate.h" +#include "compiler/preprocessor/new/Preprocessor.h" +#include "compiler/ShHandle.h" +#include "compiler/SymbolTable.h" + +struct TMatrixFields { + bool wholeRow; + bool wholeCol; + int row; + int col; +}; + +// +// The following are extra variables needed during parsing, grouped together so +// they can be passed to the parser without needing a global. +// +struct TParseContext { + TParseContext(TSymbolTable& symt, TExtensionBehavior& ext, TIntermediate& interm, ShShaderType type, ShShaderSpec spec, int options, bool checksPrecErrors, const char* sourcePath, TInfoSink& is) : + intermediate(interm), + symbolTable(symt), + shaderType(type), + shaderSpec(spec), + compileOptions(options), + sourcePath(sourcePath), + treeRoot(0), + lexAfterType(false), + loopNestingLevel(0), + structNestingLevel(0), + inTypeParen(false), + currentFunctionType(NULL), + functionReturnsValue(false), + checksPrecisionErrors(checksPrecErrors), + diagnostics(is), + directiveHandler(ext, diagnostics), + preprocessor(&diagnostics, &directiveHandler), + scanner(NULL) { } + TIntermediate& intermediate; // to hold and build a parse tree + TSymbolTable& symbolTable; // symbol table that goes with the language currently being parsed + ShShaderType shaderType; // vertex or fragment language (future: pack or unpack) + ShShaderSpec shaderSpec; // The language specification compiler conforms to - GLES2 or WebGL. + int compileOptions; + const char* sourcePath; // Path of source file or NULL. + TIntermNode* treeRoot; // root of parse tree being created + bool lexAfterType; // true if we've recognized a type, so can only be looking for an identifier + int loopNestingLevel; // 0 if outside all loops + int structNestingLevel; // incremented while parsing a struct declaration + bool inTypeParen; // true if in parentheses, looking only for an identifier + const TType* currentFunctionType; // the return type of the function that's currently being parsed + bool functionReturnsValue; // true if a non-void function has a return + bool checksPrecisionErrors; // true if an error will be generated when a variable is declared without precision, explicit or implicit. + TString HashErrMsg; + bool AfterEOF; + TDiagnostics diagnostics; + TDirectiveHandler directiveHandler; + pp::Preprocessor preprocessor; + void* scanner; + + int numErrors() const { return diagnostics.numErrors(); } + TInfoSink& infoSink() { return diagnostics.infoSink(); } + void error(TSourceLoc loc, const char *reason, const char* token, + const char* extraInfo=""); + void warning(TSourceLoc loc, const char* reason, const char* token, + const char* extraInfo=""); + void trace(const char* str); + void recover(); + + bool parseVectorFields(const TString&, int vecSize, TVectorFields&, int line); + bool parseMatrixFields(const TString&, int matSize, TMatrixFields&, int line); + + bool reservedErrorCheck(int line, const TString& identifier); + void assignError(int line, const char* op, TString left, TString right); + void unaryOpError(int line, const char* op, TString operand); + void binaryOpError(int line, const char* op, TString left, TString right); + bool precisionErrorCheck(int line, TPrecision precision, TBasicType type); + bool lValueErrorCheck(int line, const char* op, TIntermTyped*); + bool constErrorCheck(TIntermTyped* node); + bool integerErrorCheck(TIntermTyped* node, const char* token); + bool globalErrorCheck(int line, bool global, const char* token); + bool constructorErrorCheck(int line, TIntermNode*, TFunction&, TOperator, TType*); + bool arraySizeErrorCheck(int line, TIntermTyped* expr, int& size); + bool arrayQualifierErrorCheck(int line, TPublicType type); + bool arrayTypeErrorCheck(int line, TPublicType type); + bool arrayErrorCheck(int line, TString& identifier, TPublicType type, TVariable*& variable); + bool voidErrorCheck(int, const TString&, const TPublicType&); + bool boolErrorCheck(int, const TIntermTyped*); + bool boolErrorCheck(int, const TPublicType&); + bool samplerErrorCheck(int line, const TPublicType& pType, const char* reason); + bool structQualifierErrorCheck(int line, const TPublicType& pType); + bool parameterSamplerErrorCheck(int line, TQualifier qualifier, const TType& type); + bool nonInitConstErrorCheck(int line, TString& identifier, TPublicType& type, bool array); + bool nonInitErrorCheck(int line, TString& identifier, TPublicType& type, TVariable*& variable); + bool paramErrorCheck(int line, TQualifier qualifier, TQualifier paramQualifier, TType* type); + bool extensionErrorCheck(int line, const TString&); + + const TExtensionBehavior& extensionBehavior() const { return directiveHandler.extensionBehavior(); } + bool supportsExtension(const char* extension); + void handleExtensionDirective(int line, const char* extName, const char* behavior); + + const TPragma& pragma() const { return directiveHandler.pragma(); } + void handlePragmaDirective(int line, const char* name, const char* value); + + bool containsSampler(TType& type); + bool areAllChildConst(TIntermAggregate* aggrNode); + const TFunction* findFunction(int line, TFunction* pfnCall, bool *builtIn = 0); + bool executeInitializer(TSourceLoc line, TString& identifier, TPublicType& pType, + TIntermTyped* initializer, TIntermNode*& intermNode, TVariable* variable = 0); + bool arraySetMaxSize(TIntermSymbol*, TType*, int, bool, TSourceLoc); + + TIntermTyped* addConstructor(TIntermNode*, const TType*, TOperator, TFunction*, TSourceLoc); + TIntermTyped* foldConstConstructor(TIntermAggregate* aggrNode, const TType& type); + TIntermTyped* constructStruct(TIntermNode*, TType*, int, TSourceLoc, bool subset); + TIntermTyped* constructBuiltIn(const TType*, TOperator, TIntermNode*, TSourceLoc, bool subset); + TIntermTyped* addConstVectorNode(TVectorFields&, TIntermTyped*, TSourceLoc); + TIntermTyped* addConstMatrixNode(int , TIntermTyped*, TSourceLoc); + TIntermTyped* addConstArrayNode(int index, TIntermTyped* node, TSourceLoc line); + TIntermTyped* addConstStruct(TString& , TIntermTyped*, TSourceLoc); + + // Performs an error check for embedded struct declarations. + // Returns true if an error was raised due to the declaration of + // this struct. + bool enterStructDeclaration(TSourceLoc line, const TString& identifier); + void exitStructDeclaration(); + + bool structNestingErrorCheck(TSourceLoc line, const TType& fieldType); +}; + +int PaParseStrings(int count, const char* const string[], const int length[], + TParseContext* context); + +#endif // _PARSER_HELPER_INCLUDED_ |