/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.imperius.spl.parser.compiler;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import antlr.CommonAST;
import antlr.Token;
import antlr.collections.AST;
import antlr.debug.misc.ASTFrame;
/**
* CommonAST(default) from Antlr does not store line information.
* So we extend it, so use setASTNodeClass() to set it up in parser.
*/
public class ASTWithLineNumber extends CommonAST {
private static final long serialVersionUID = 1L;
private int line_ = 0;
public void initialize(Token tok) {
super.initialize(tok);
line_ = tok.getLine();
}
public void initialize (AST ast) {
super.initialize(ast);
if (ast instanceof ASTWithLineNumber){
line_ = ((ASTWithLineNumber)ast).getLine();
}
}
public int getLine() {
return line_;
}
public void displayTree(AST r){
final ASTFrame frame = new ASTFrame("Java AST", r);
frame.setVisible(true);
frame.addWindowListener(
new WindowAdapter() {
public void windowClosing (WindowEvent e) {
frame.setVisible(true); // hide the Frame
frame.dispose();
System.exit(0);
}
}
);
}
}