1 files changed, 118 insertions, 0 deletions
diff --git a/chromium/third_party/glslang/src/glslang/MachineIndependent/RemoveTree.cpp b/chromium/third_party/glslang/src/glslang/MachineIndependent/RemoveTree.cpp
new file mode 100644
index 00000000000..a4fa551cadf
--- /dev/null
+++ b/chromium/third_party/glslang/src/glslang/MachineIndependent/RemoveTree.cpp
@@ -0,0 +1,118 @@
+//
+//Copyright (C) 2002-2005  3Dlabs Inc. Ltd.
+//Copyright (C) 2013 LunarG, Inc.
+//
+//All rights reserved.
+//
+//Redistribution and use in source and binary forms, with or without
+//modification, are permitted provided that the following conditions
+//are met:
+//
+//    Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+//
+//    Redistributions in binary form must reproduce the above
+//    copyright notice, this list of conditions and the following
+//    disclaimer in the documentation and/or other materials provided
+//    with the distribution.
+//
+//    Neither the name of 3Dlabs Inc. Ltd. nor the names of its
+//    contributors may be used to endorse or promote products derived
+//    from this software without specific prior written permission.
+//
+//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+//POSSIBILITY OF SUCH DAMAGE.
+//
+
+#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