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      1 //
      2 // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
      3 // Use of this source code is governed by a BSD-style license that can be
      4 // found in the LICENSE file.
      5 //
      6 
      7 #include "GLSLANG/ShaderLang.h"
      8 #include "compiler/intermediate.h"
      9 
     10 // Provides information about a variable.
     11 // It is currently being used to store info about active attribs and uniforms.
     12 struct TVariableInfo {
     13     TPersistString name;
     14     ShDataType type;
     15     int size;
     16 };
     17 typedef std::vector<TVariableInfo> TVariableInfoList;
     18 
     19 // Traverses intermediate tree to collect all attributes and uniforms.
     20 class CollectAttribsUniforms : public TIntermTraverser {
     21 public:
     22     CollectAttribsUniforms(TVariableInfoList& attribs,
     23                            TVariableInfoList& uniforms);
     24 
     25     virtual void visitSymbol(TIntermSymbol*);
     26     virtual void visitConstantUnion(TIntermConstantUnion*);
     27     virtual bool visitBinary(Visit, TIntermBinary*);
     28     virtual bool visitUnary(Visit, TIntermUnary*);
     29     virtual bool visitSelection(Visit, TIntermSelection*);
     30     virtual bool visitAggregate(Visit, TIntermAggregate*);
     31     virtual bool visitLoop(Visit, TIntermLoop*);
     32     virtual bool visitBranch(Visit, TIntermBranch*);
     33 
     34 private:
     35     TVariableInfoList& mAttribs;
     36     TVariableInfoList& mUniforms;
     37 };
     38 
     39