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jgruber authored
Contrary to AstVisitor, which does not implement any traversal logic, AstTraversalVisitor provides default implementations for each Visit* function which walk through the AST. It is intended to be used as a base class for visitors which are only interested in a small portion of the AST. R=yangguo@chromium.org Review-Url: https://codereview.chromium.org/1963243003 Cr-Commit-Position: refs/heads/master@{#36283}
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