зеркало из https://github.com/mozilla/pjs.git
105 строки
3.5 KiB
Java
105 строки
3.5 KiB
Java
/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Patrick C. Beard <beard@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU Public License (the "GPL"), in which case the
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* provisions of the GPL are applicable instead of those above.
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* If you wish to allow use of your version of this file only
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* under the terms of the GPL and not to allow others to use your
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* version of this file under the NPL, indicate your decision by
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* deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL. If you do not delete
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* the provisions above, a recipient may use your version of this
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* file under either the NPL or the GPL.
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*/
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import java.util.Enumeration;
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import java.util.Vector;
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/**
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* Represents a global tree of calls.
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*/
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public class CallTree {
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public static class Node {
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int id;
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Node parent;
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String data;
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public Node(int id, Node parent) {
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this.id = id;
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this.parent = parent;
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}
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};
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private Vector nodes = new Vector(16000);
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private StringTable strings;
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public CallTree(StringTable strings) {
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nodes.addElement(null);
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this.strings = strings;
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}
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/**
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* Parses a line of the form:
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* <c id=number pid=number>function[file,offset]</c>
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*/
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public Node parseNode(String line) {
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try {
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int start = 1 + line.indexOf('=');
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int endTag = line.indexOf('>');
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if (line.charAt(endTag - 1) == '/') {
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// just references an already parsed node.
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int id = Integer.parseInt(line.substring(start, endTag - 1));
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return (Node) nodes.elementAt(id);
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} else {
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int end = line.indexOf(' ', start + 1);
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int id = Integer.parseInt(line.substring(start, end));
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start = 1 + line.indexOf('=', end + 1);
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end = line.indexOf('>', start + 1);
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int pid = Integer.parseInt(line.substring(start, end));
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Node node = addNode(id, pid);
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start = end + 1;
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end = line.lastIndexOf('<');
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node.data = strings.intern(line.substring(start, end));
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return node;
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}
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} catch (NumberFormatException nfe) {
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}
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return null;
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}
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public Node addNode(int id, int pid) {
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Node parent = (Node) nodes.elementAt(pid);
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Node node = new Node(id, parent);
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nodes.addElement(node);
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if (nodes.size() != (id + 1))
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throw new Error("inconsistent node id");
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return node;
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}
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public Node getNode(int id) {
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return (Node) nodes.elementAt(id);
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}
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}
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