1 files changed, 69 insertions, 0 deletions
diff --git a/gfx/angle/src/compiler/translator/depgraph/DependencyGraphTraverse.cpp b/gfx/angle/src/compiler/translator/depgraph/DependencyGraphTraverse.cpp
new file mode 100644
index 000000000..197fde97e
--- /dev/null
+++ b/gfx/angle/src/compiler/translator/depgraph/DependencyGraphTraverse.cpp
@@ -0,0 +1,69 @@
+//
+// Copyright (c) 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.
+//
+
+#include "compiler/translator/depgraph/DependencyGraph.h"
+
+// These methods do a breadth-first traversal through the graph and mark visited nodes.
+
+void TGraphNode::traverse(TDependencyGraphTraverser* graphTraverser)
+{
+    graphTraverser->markVisited(this);
+}
+
+void TGraphParentNode::traverse(TDependencyGraphTraverser* graphTraverser)
+{
+    TGraphNode::traverse(graphTraverser);
+
+    graphTraverser->incrementDepth();
+
+    // Visit the parent node's children.
+    for (TGraphNodeSet::const_iterator iter = mDependentNodes.begin();
+         iter != mDependentNodes.end();
+         ++iter)
+    {
+        TGraphNode* node = *iter;
+        if (!graphTraverser->isVisited(node))
+            node->traverse(graphTraverser);
+    }
+
+    graphTraverser->decrementDepth();
+}
+
+void TGraphArgument::traverse(TDependencyGraphTraverser* graphTraverser)
+{
+    graphTraverser->visitArgument(this);
+    TGraphParentNode::traverse(graphTraverser);
+}
+
+void TGraphFunctionCall::traverse(TDependencyGraphTraverser* graphTraverser)
+{
+    graphTraverser->visitFunctionCall(this);
+    TGraphParentNode::traverse(graphTraverser);
+}
+
+void TGraphSymbol::traverse(TDependencyGraphTraverser* graphTraverser)
+{
+    graphTraverser->visitSymbol(this);
+    TGraphParentNode::traverse(graphTraverser);
+}
+
+void TGraphSelection::traverse(TDependencyGraphTraverser* graphTraverser)
+{
+    graphTraverser->visitSelection(this);
+    TGraphNode::traverse(graphTraverser);
+}
+
+void TGraphLoop::traverse(TDependencyGraphTraverser* graphTraverser)
+{
+    graphTraverser->visitLoop(this);
+    TGraphNode::traverse(graphTraverser);
+}
+
+void TGraphLogicalOp::traverse(TDependencyGraphTraverser* graphTraverser)
+{
+    graphTraverser->visitLogicalOp(this);
+    TGraphNode::traverse(graphTraverser);
+}