/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.javascript.ast;
/**
* Abstract base type for loops.
*/
public abstract class Loop extends Scope {
protected AstNode body;
protected int lp = -1;
protected int rp = -1;
public Loop() {
}
public Loop(int pos) {
super(pos);
}
public Loop(int pos, int len) {
super(pos, len);
}
/**
* Returns loop body
*/
public AstNode getBody() {
return body;
}
/**
* Sets loop body. Sets the parent of the body to this loop node,
* and updates its offset to be relative. Extends the length of this
* node to include the body.
*/
public void setBody(AstNode body) {
this.body = body;
int end = body.getPosition() + body.getLength();
this.setLength(end - this.getPosition());
body.setParent(this);
}
/**
* Returns left paren position, -1 if missing
*/
public int getLp() {
return lp;
}
/**
* Sets left paren position
*/
public void setLp(int lp) {
this.lp = lp;
}
/**
* Returns right paren position, -1 if missing
*/
public int getRp() {
return rp;
}
/**
* Sets right paren position
*/
public void setRp(int rp) {
this.rp = rp;
}
/**
* Sets both paren positions
*/
public void setParens(int lp, int rp) {
this.lp = lp;
this.rp = rp;
}
}