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*
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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package jdk.nashorn.internal.ir;
import jdk.nashorn.internal.ir.visitor.NodeVisitor;
/**
* Interface for nodes that can be part of the lexical context.
* @see LexicalContext
*/
public interface LexicalContextNode {
/**
* Accept function for the node given a lexical context. It must be prepared
* to replace itself if present in the lexical context
*
* @param lc lexical context
* @param visitor node visitor
*
* @return new node or same node depending on state change
*/
Node accept(final LexicalContext lc, final NodeVisitor<? extends LexicalContext> visitor);
// Would be a default method on Java 8
/**
* Helper class for accept for items of this lexical context, delegates to the
* subclass accept and makes sure that the node is on the context before accepting
* and gets popped after accepting (and that the stack is consistent in that the
* node has been replaced with the possible new node resulting in visitation)
*/
static class Acceptor {
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