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package jdk.nashorn.internal.ir;

import jdk.nashorn.internal.codegen.Label;

This class represents a node from which control flow can execute a break statement /**
 * This class represents a node from which control flow can execute
 * a {@code break} statement
 */
public interface BreakableNode extends LexicalContextNode, JoinPredecessor, Labels {
    
Ensure that any labels in this breakable node are unique so
that new jumps won't go to old parts of the tree. Used for
example for cloning finally blocks
Params:
lc – the lexical context
Returns:
node after labels have been made unique/**
     * Ensure that any labels in this breakable node are unique so
     * that new jumps won't go to old parts of the tree. Used for
     * example for cloning finally blocks
     *
     * @param lc the lexical context
     * @return node after labels have been made unique
     */
    public abstract Node ensureUniqueLabels(final LexicalContext lc);

    
Check whether this can be broken out from without using a label,
e.g. everything but Blocks, basically
Returns:
true if breakable without label/**
     * Check whether this can be broken out from without using a label,
     * e.g. everything but Blocks, basically
     * @return true if breakable without label
     */
    public boolean isBreakableWithoutLabel();

    
Return the break label, i.e. the location to go to on break.
Returns:
the break label/**
     * Return the break label, i.e. the location to go to on break.
     * @return the break label
     */
    public Label getBreakLabel();

}