com.google.javascript.jscomp

Class NodeTraversal.AbstractScopedCallback

java.lang.Object

com.google.javascript.jscomp.NodeTraversal.AbstractScopedCallback

All Implemented Interfaces:

NodeTraversal.Callback, NodeTraversal.ScopedCallback

Enclosing class:

NodeTraversal

public abstract static class NodeTraversal.AbstractScopedCallback
extends java.lang.Object
implements NodeTraversal.ScopedCallback

Abstract scoped callback to visit all nodes in postorder.

Constructor Summary

Constructors

Constructor and Description
AbstractScopedCallback()

Method Summary

Modifier and Type	Method and Description
void	enterScope(NodeTraversal t) Called immediately after entering a new scope.
void	exitScope(NodeTraversal t) Called immediately before exiting a scope.
boolean	shouldTraverse(NodeTraversal nodeTraversal, Node n, Node parent) Visits a node in pre order (before visiting its children) and decides whether this node's children should be traversed.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.google.javascript.jscomp.NodeTraversal.Callback

visit

Constructor Detail

AbstractScopedCallback

public AbstractScopedCallback()

Method Detail

shouldTraverse

public final boolean shouldTraverse(NodeTraversal nodeTraversal,
                                    Node n,
                                    Node parent)

Description copied from interface: NodeTraversal.Callback

Visits a node in pre order (before visiting its children) and decides whether this node's children should be traversed. If children are traversed, they will be visited by NodeTraversal.Callback.visit(NodeTraversal, Node, Node) in postorder.

Implementations can have side effects (e.g. modifying the parse tree).

Specified by:

shouldTraverse in interface NodeTraversal.Callback

Returns:

whether the children of this node should be visited

enterScope

public void enterScope(NodeTraversal t)

Description copied from interface: NodeTraversal.ScopedCallback

Called immediately after entering a new scope. The new scope can be accessed through t.getScope()

Specified by:

enterScope in interface NodeTraversal.ScopedCallback

exitScope

public void exitScope(NodeTraversal t)

Description copied from interface: NodeTraversal.ScopedCallback

Called immediately before exiting a scope. The ending scope can be accessed through t.getScope()

Specified by:

exitScope in interface NodeTraversal.ScopedCallback