kc3-lang/angle/src/compiler/translator/IntermNode_util.h

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• Hash : 180f43c6
  Author :
  Date : 2017-10-09T17:00:44
  

  Refactor creating temporary symbols
  
  This makes creating temporary symbols easy also outside of traversers.
  This will be needed for improving variable initialization.
  
  TEST=angle_unittests
  BUG=chromium:735497
  
  Change-Id: Id048fc338e0be6c76bb6f082421ae106618e5003
  Reviewed-on: https://chromium-review.googlesource.com/707194
  Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  

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• src/compiler/translator/IntermNode_util.h

• //
  // Copyright (c) 2017 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.
  //
  // IntermNode_util.h: High-level utilities for creating AST nodes and node hierarchies. Mostly meant
  // to be used in AST transforms.
  
  #ifndef COMPILER_TRANSLATOR_INTERMNODEUTIL_H_
  #define COMPILER_TRANSLATOR_INTERMNODEUTIL_H_
  
  #include "compiler/translator/IntermNode.h"
  
  namespace sh
  {
  
  TIntermFunctionPrototype *CreateInternalFunctionPrototypeNode(const TType &returnType,
                                                                const char *name,
                                                                const TSymbolUniqueId &functionId);
  TIntermFunctionDefinition *CreateInternalFunctionDefinitionNode(const TType &returnType,
                                                                  const char *name,
                                                                  TIntermBlock *functionBody,
                                                                  const TSymbolUniqueId &functionId);
  TIntermAggregate *CreateInternalFunctionCallNode(const TType &returnType,
                                                   const char *name,
                                                   const TSymbolUniqueId &functionId,
                                                   TIntermSequence *arguments);
  
  TIntermTyped *CreateZeroNode(const TType &type);
  TIntermConstantUnion *CreateIndexNode(int index);
  TIntermConstantUnion *CreateBoolNode(bool value);
  
  TIntermSymbol *CreateTempSymbolNode(const TSymbolUniqueId &id,
                                      const TType &type,
                                      TQualifier qualifier);
  TIntermDeclaration *CreateTempInitDeclarationNode(const TSymbolUniqueId &id,
                                                    TIntermTyped *initializer,
                                                    TQualifier qualifier);
  
  // If the input node is nullptr, return nullptr.
  // If the input node is a block node, return it.
  // If the input node is not a block node, put it inside a block node and return that.
  TIntermBlock *EnsureBlock(TIntermNode *node);
  
  // Should be called from inside Compiler::compileTreeImpl() where the global level is in scope.
  TIntermSymbol *ReferenceGlobalVariable(const TString &name, const TSymbolTable &symbolTable);
  
  // Note: this can access desktop GLSL built-ins that are hidden from the parser.
  TIntermSymbol *ReferenceBuiltInVariable(const TString &name,
                                          const TSymbolTable &symbolTable,
                                          int shaderVersion);
  
  TIntermTyped *CreateBuiltInFunctionCallNode(const TString &name,
                                              TIntermSequence *arguments,
                                              const TSymbolTable &symbolTable,
                                              int shaderVersion);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_INTERMNODEUTIL_H_

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