org.mozilla.javascript.ast.XmlDotQuery Maven / Gradle / Ivy
/* -*- 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;
import org.mozilla.javascript.Token;
/**
* AST node representing an E4X {@code foo.(bar)} query expression.
* The node type (operator) is {@link Token#DOTQUERY}.
* Its {@code getLeft} node is the target ("foo" in the example),
* and the {@code getRight} node is the filter expression node.
*
* This class exists separately from {@link InfixExpression} largely because it
* has different printing needs. The position of the left paren is just after
* the dot (operator) position, and the right paren is the final position in the
* bounds of the node. If the right paren is missing, the node ends at the end
* of the filter expression.
*/
public class XmlDotQuery extends InfixExpression {
private int rp = -1;
{
type = Token.DOTQUERY;
}
public XmlDotQuery() {
}
public XmlDotQuery(int pos) {
super(pos);
}
public XmlDotQuery(int pos, int len) {
super(pos, len);
}
/**
* Returns right-paren position, -1 if missing.
*
* Note that the left-paren is automatically the character
* immediately after the "." in the operator - no whitespace is
* permitted between the dot and lp by the scanner.
*/
public int getRp() {
return rp;
}
/**
* Sets right-paren position
*/
public void setRp(int rp) {
this.rp = rp;
}
@Override
public String toSource(int depth) {
StringBuilder sb = new StringBuilder();
sb.append(makeIndent(depth));
sb.append(getLeft().toSource(0));
sb.append(".(");
sb.append(getRight().toSource(0));
sb.append(")");
return sb.toString();
}
}