net.sourceforge.htmlunit.corejs.javascript.ast
Interface NodeVisitor

All Known Implementing Classes:

AstNode.DebugPrintVisitor

public interface NodeVisitor

Simple visitor interface for traversing the AST. The nodes are visited in an arbitrary order. The visitor must cast nodes to the appropriate type based on their token-type.

Method Summary

boolean

visit(AstNode node) Visits an AST node.

Method Detail

visit

boolean visit(AstNode node)

Visits an AST node.

Parameters:

node - the AST node. Will never visit an AstRoot node, since the AstRoot is where the visiting begins.

Returns:

true if the children should be visited. If false, the subtree rooted at this node is skipped. The node argument should never be null -- the individual AstNode classes should skip any children that are not present in the source when they invoke this method.