Package org.antlr.runtime.tree
Class TreeVisitor
java.lang.Object
org.antlr.runtime.tree.TreeVisitor
Do a depth first walk of a tree, applying pre() and post() actions
as we discover and finish nodes.
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Field Summary
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvisit
(Object t, TreeVisitorAction action) Visit every node in tree t and trigger an action for each node before/after having visited all of its children.
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Field Details
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adaptor
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Constructor Details
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TreeVisitor
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TreeVisitor
public TreeVisitor()
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Method Details
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visit
Visit every node in tree t and trigger an action for each node before/after having visited all of its children. Execute both actions even if t has no children. If a child visit yields a new child, it can update its parent's child list or just return the new child. The child update code works even if the child visit alters its parent and returns the new tree. Return result of applying post action to this node.
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