Free the lizard

git-svn-id: svn://10.0.0.236/trunk@10 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/js/jsd/classes/netscape/jsdebug/Script.java

@@ -0,0 +1,82 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+package netscape.jsdebug;
+
+/**
+* This instances of this class represent the JavaScript string object. This
+* class is intended to only be constructed by the underlying native code.
+* The DebugController will construct an instance of this class when scripts
+* are created and that instance will always be used to reference the underlying
+* script throughout the lifetime of that script.
+*
+* @author  John Bandhauer
+* @version 1.0
+* @since   1.0
+*/
+public final class Script
+{
+    public String   getURL()            {return _url;           }
+    public String   getFunction()       {return _function;      }
+    public int      getBaseLineNumber() {return _baseLineNumber;}
+    public int      getLineExtent()     {return _lineExtent;    }
+    public boolean  isValid()           {return 0 != _nativePtr;}
+
+    /**
+    * Get the PC of the first executable code on or after the given 
+    * line in this script. returns null if none
+    */
+    public native JSPC      getClosestPC(int line);
+
+    public String toString()
+    {
+        int end = _baseLineNumber+_lineExtent-1;
+        if( null == _function )
+            return "<Script "+_url+"["+_baseLineNumber+","+end+"]>";
+        else
+            return "<Script "+_url+"#"+_function+"()["+_baseLineNumber+","+end+"]>";
+    }
+
+    public int hashCode()
+    {
+        return _nativePtr;
+    }
+
+    public boolean equals(Object obj)
+    {
+        if( obj == this )
+            return true;
+
+        // In our system the native code is the only code that generates
+        // these objects. They are never duplicated
+        return false;
+/*
+        if( !(obj instanceof Script) )
+            return false;
+        return 0 != _nativePtr && _nativePtr == ((Script)obj)._nativePtr;
+*/
+    }
+
+    private synchronized void _setInvalid() {_nativePtr = 0;}
+
+    private String  _url;
+    private String  _function;
+    private int     _baseLineNumber;
+    private int     _lineExtent;
+    private int     _nativePtr;     // used internally
+}