source: webkit/trunk/JavaScriptCore/API/JSContextRef.cpp@ 15484

Last change on this file since 15484 was 15484, checked in by ggaren, 19 years ago

Reviewed by Maciej.


  • Removed the exception parameter from the initialize callback and, by extension, JSObjectMake. We have never had a need for exceptions when iniitializing, so the parameter seemed likely to "get in the way."


Also, an exception in JavaScript is thrown in response to input --
"invalid URL", "index not a number", etc., so it's the job of the
constructor function, not the initialize method, to throw.


If initialize *really* wants to throw, it can communicate the throw to
the constructor through the constructed object's private data (e.g., set
it to NULL, signaling to the consntructor that initialization failed.)


  • Added JSObjectMakeWithData, which enables a constructor to set private data on an object *before* it has been initialized. That way, the initialize methods can properly operate on the data.
  • API/JSNode.c: Moved ref into the initialize method, for better encapsulation, now that it's possible.
  • API/JSNodeList.c: ditto
  • API/minidom.c: (main): Do more aggressive garbage collection to test ref/deref and initialize/finalize.
  • API/minidom.js: store childNodes in a temporary so it doesn't get re-created like a thousand times. This makes debugging ref/deref easier
File size: 2.6 KB
Line 
1// -*- mode: c++; c-basic-offset: 4 -*-
2/*
3 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "APICast.h"
28#include "JSContextRef.h"
29
30#include "JSCallbackObject.h"
31#include "completion.h"
32#include "interpreter.h"
33#include "object.h"
34
35using namespace KJS;
36
37JSGlobalContextRef JSGlobalContextCreate(JSClassRef globalObjectClass)
38{
39 JSLock lock;
40
41 JSObject* globalObject;
42 if (globalObjectClass)
43 // FIXME: We need to pass a real ExecState here to support an initialize callback in globalObjectClass
44 globalObject = new JSCallbackObject(0, globalObjectClass, 0, 0);
45 else
46 globalObject = new JSObject();
47
48 Interpreter* interpreter = new Interpreter(globalObject); // adds the built-in object prototype to the global object
49 JSGlobalContextRef ctx = reinterpret_cast<JSGlobalContextRef>(interpreter->globalExec());
50 return JSGlobalContextRetain(ctx);
51}
52
53JSGlobalContextRef JSGlobalContextRetain(JSGlobalContextRef ctx)
54{
55 JSLock lock;
56 ExecState* exec = toJS(ctx);
57 exec->dynamicInterpreter()->ref();
58 return ctx;
59}
60
61void JSGlobalContextRelease(JSGlobalContextRef ctx)
62{
63 JSLock lock;
64 ExecState* exec = toJS(ctx);
65 exec->dynamicInterpreter()->deref();
66}
67
68JSObjectRef JSContextGetGlobalObject(JSContextRef ctx)
69{
70 ExecState* exec = toJS(ctx);
71 return toRef(exec->dynamicInterpreter()->globalObject());
72}
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