Top Description Methods
org.antlr.runtime.tree

public Interface TreeVisitorAction

How to execute code for node t when a visitor visits node t. Execute pre() before visiting children and execute post() after visiting children.

Method Summary

Modifier and TypeMethod and Description
public Object
post(Object t)

Execute an action after visiting children of t.

public Object
pre(Object t)

Execute an action before visiting children of t.

Method Detail

postback to summary
public Object post(Object t)

Execute an action after visiting children of t. Return t or a rewritten t. It is up to the visitor to decide what to do with the return value.

preback to summary
public Object pre(Object t)

Execute an action before visiting children of t. Return t or a rewritten t. It is up to the visitor to decide what to do with the return value. Children of returned value will be visited if using TreeVisitor.visit().