src/third_party/glslang/src/glslang/MachineIndependent/RemoveTree.cpp

//
// Copyright (C) 2002-2005  3Dlabs Inc. Ltd.
// Copyright (C) 2013 LunarG, Inc.
//
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//
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// modification, are permitted provided that the following conditions
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//    notice, this list of conditions and the following disclaimer.
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//    Redistributions in binary form must reproduce the above
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//    disclaimer in the documentation and/or other materials provided
//    with the distribution.
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//    contributors may be used to endorse or promote products derived
//    from this software without specific prior written permission.
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#include "../Include/intermediate.h"
#include "RemoveTree.h"

namespace glslang {

//
// Code to recursively delete the intermediate tree.
//
struct TRemoveTraverser : TIntermTraverser {
    TRemoveTraverser() : TIntermTraverser(false, false, true, false) {}

    virtual void visitSymbol(TIntermSymbol* node)
    {
        delete node;
    }

    virtual bool visitBinary(TVisit /* visit*/ , TIntermBinary* node)
    {
        delete node;

        return true;
    }

    virtual bool visitUnary(TVisit /* visit */, TIntermUnary* node)
    {
        delete node;

        return true;
    }

    virtual bool visitAggregate(TVisit /* visit*/ , TIntermAggregate* node)
    {
        delete node;

        return true;
    }

    virtual bool visitSelection(TVisit /* visit*/ , TIntermSelection* node)
    {
        delete node;

        return true;
    }

    virtual bool visitSwitch(TVisit /* visit*/ , TIntermSwitch* node)
    {
        delete node;

        return true;
    }

    virtual void visitConstantUnion(TIntermConstantUnion* node)
    {
        delete node;
    }

    virtual bool visitLoop(TVisit /* visit*/ , TIntermLoop* node)
    {
        delete node;

        return true;
    }

    virtual bool visitBranch(TVisit /* visit*/ , TIntermBranch* node)
    {
        delete node;

        return true;
    }
};

//
// Entry point.
//
void RemoveAllTreeNodes(TIntermNode* root)
{
    TRemoveTraverser it;

    root->traverse(&it);
}

} // end namespace glslang