gecko/dom/workers/Location.cpp
Igor Bukanov ed3f5972bd bug 736978 - remove JS_FinalizeStub. r=:billm
Currently the GC finalizes on the background thread only objects with null
JSClass::finalize. However, this implies that any object that uses
JS_FinalizeStub for the finalizer would be prevented from the background
finalization.

To fix this the patch removes JS_FinalizeStub replacing it with NULL in all
cases when the class has no custom finalizer. For style consistency the patch
also removed the usage of JSCLASS_NO_OPTIONAL_MEMBERS in the static
declarations as the compiler fills the missing fields with null in any cases.
2012-03-19 15:27:58 +01:00

234 lines
7.0 KiB
C++

/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Web Workers.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Ben Turner <bent.mozilla@gmail.com> (Original Author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "Location.h"
#include "jsapi.h"
#include "jsfriendapi.h"
#include "nsTraceRefcnt.h"
#define PROPERTY_FLAGS \
(JSPROP_ENUMERATE | JSPROP_SHARED)
USING_WORKERS_NAMESPACE
namespace {
class Location
{
static JSClass sClass;
static JSPropertySpec sProperties[];
static JSFunctionSpec sFunctions[];
enum SLOT {
SLOT_href = 0,
SLOT_protocol,
SLOT_host,
SLOT_hostname,
SLOT_port,
SLOT_pathname,
SLOT_search,
SLOT_hash,
SLOT_COUNT
};
public:
static JSObject*
InitClass(JSContext* aCx, JSObject* aObj)
{
return JS_InitClass(aCx, aObj, NULL, &sClass, Construct, 0, sProperties,
sFunctions, NULL, NULL);
}
static JSObject*
Create(JSContext* aCx, JSString* aHref, JSString* aProtocol, JSString* aHost,
JSString* aHostname, JSString* aPort, JSString* aPathname,
JSString* aSearch, JSString* aHash)
{
JSObject* obj = JS_NewObject(aCx, &sClass, NULL, NULL);
if (!obj) {
return NULL;
}
jsval empty = JS_GetEmptyStringValue(aCx);
JS_SetReservedSlot(obj, SLOT_href,
aHref ? STRING_TO_JSVAL(aHref) : empty);
JS_SetReservedSlot(obj, SLOT_protocol,
aProtocol ? STRING_TO_JSVAL(aProtocol) : empty);
JS_SetReservedSlot(obj, SLOT_host,
aHost ? STRING_TO_JSVAL(aHost) : empty);
JS_SetReservedSlot(obj, SLOT_hostname,
aHostname ? STRING_TO_JSVAL(aHostname) : empty);
JS_SetReservedSlot(obj, SLOT_port,
aPort ? STRING_TO_JSVAL(aPort) : empty);
JS_SetReservedSlot(obj, SLOT_pathname,
aPathname ? STRING_TO_JSVAL(aPathname) : empty);
JS_SetReservedSlot(obj, SLOT_search,
aSearch ? STRING_TO_JSVAL(aSearch) : empty);
JS_SetReservedSlot(obj, SLOT_hash,
aHash ? STRING_TO_JSVAL(aHash) : empty);
Location* priv = new Location();
JS_SetPrivate(obj, priv);
return obj;
}
private:
Location()
{
MOZ_COUNT_CTOR(mozilla::dom::workers::Location);
}
~Location()
{
MOZ_COUNT_DTOR(mozilla::dom::workers::Location);
}
static JSBool
Construct(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JS_ReportErrorNumber(aCx, js_GetErrorMessage, NULL, JSMSG_WRONG_CONSTRUCTOR,
sClass.name);
return false;
}
static void
Finalize(JSContext* aCx, JSObject* aObj)
{
JS_ASSERT(JS_GetClass(aObj) == &sClass);
delete static_cast<Location*>(JS_GetPrivate(aObj));
}
static JSBool
ToString(JSContext* aCx, unsigned aArgc, jsval* aVp)
{
JSObject* obj = JS_THIS_OBJECT(aCx, aVp);
if (!obj) {
return false;
}
JSClass* classPtr = JS_GetClass(obj);
if (classPtr != &sClass) {
JS_ReportErrorNumber(aCx, js_GetErrorMessage, NULL,
JSMSG_INCOMPATIBLE_PROTO, sClass.name, "toString",
classPtr);
return false;
}
jsval href = JS_GetReservedSlot(obj, SLOT_href);
JS_SET_RVAL(aCx, aVp, href);
return true;
}
static JSBool
GetProperty(JSContext* aCx, JSObject* aObj, jsid aIdval, jsval* aVp)
{
JSClass* classPtr = JS_GetClass(aObj);
if (classPtr != &sClass) {
JS_ReportErrorNumber(aCx, js_GetErrorMessage, NULL,
JSMSG_INCOMPATIBLE_PROTO, sClass.name, "GetProperty",
classPtr->name);
return false;
}
JS_ASSERT(JSID_IS_INT(aIdval));
JS_ASSERT(JSID_TO_INT(aIdval) >= 0 && JSID_TO_INT(aIdval) < SLOT_COUNT);
*aVp = JS_GetReservedSlot(aObj, JSID_TO_INT(aIdval));
return true;
}
};
JSClass Location::sClass = {
"WorkerLocation",
JSCLASS_HAS_PRIVATE | JSCLASS_HAS_RESERVED_SLOTS(SLOT_COUNT),
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_StrictPropertyStub,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, Finalize
};
JSPropertySpec Location::sProperties[] = {
{ "href", SLOT_href, PROPERTY_FLAGS, GetProperty, js_GetterOnlyPropertyStub },
{ "protocol", SLOT_protocol, PROPERTY_FLAGS, GetProperty,
js_GetterOnlyPropertyStub },
{ "host", SLOT_host, PROPERTY_FLAGS, GetProperty, js_GetterOnlyPropertyStub },
{ "hostname", SLOT_hostname, PROPERTY_FLAGS, GetProperty,
js_GetterOnlyPropertyStub },
{ "port", SLOT_port, PROPERTY_FLAGS, GetProperty, js_GetterOnlyPropertyStub },
{ "pathname", SLOT_pathname, PROPERTY_FLAGS, GetProperty,
js_GetterOnlyPropertyStub },
{ "search", SLOT_search, PROPERTY_FLAGS, GetProperty,
js_GetterOnlyPropertyStub },
{ "hash", SLOT_hash, PROPERTY_FLAGS, GetProperty, js_GetterOnlyPropertyStub },
{ 0, 0, 0, NULL, NULL }
};
JSFunctionSpec Location::sFunctions[] = {
JS_FN("toString", ToString, 0, 0),
JS_FS_END
};
} // anonymous namespace
BEGIN_WORKERS_NAMESPACE
namespace location {
bool
InitClass(JSContext* aCx, JSObject* aGlobal)
{
return !!Location::InitClass(aCx, aGlobal);
}
JSObject*
Create(JSContext* aCx, JSString* aHref, JSString* aProtocol, JSString* aHost,
JSString* aHostname, JSString* aPort, JSString* aPathname,
JSString* aSearch, JSString* aHash)
{
return Location::Create(aCx, aHref, aProtocol, aHost, aHostname, aPort,
aPathname, aSearch, aHash);
}
} // namespace location
END_WORKERS_NAMESPACE