(not part of client build) initial checkin of mozilla/js/jsdj (migrated from ns/js/jsdj)

git-svn-id: svn://10.0.0.236/trunk@10115 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/js/jsdj/classes/com/netscape/jsdebugging/api/SourceLocation.java

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+/* -*- 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 com.netscape.jsdebugging.api;
+
+/**
+ * An implementation of the SourceLocation interface is used to represent
+ * a location in a source file.  Java interfacefiles only make source locations
+ * available at the line-by-line granularity, but other languages may
+ * include finer-grain information.  At this time only line number
+ * information is included.
+ * XXX must source locations be contiguous?
+ */
+public interface SourceLocation {
+    /**
+     * Gets the first line number associated with this SourceLocation.
+     * This is the lowest common denominator information that will be
+     * available: some implementations may choose to include more
+     * specific location information in a subinterface of SourceLocation.
+     */
+    public int getLine();
+
+    /**
+     * Get the first PC associated with a given SourceLocation.
+     * This is the place to set  a breakpoint at that location.
+     * returns null if there is no code corresponding to that source
+     * location.
+     */
+    public PC getPC();
+}