зеркало из https://github.com/mozilla/gecko-dev.git
149 строки
4.4 KiB
C++
149 строки
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* The Mozilla Foundation <http://www.mozilla.org/>.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Zack Weinberg <zweinberg@mozilla.com> (original author)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "PerfMeasurement.h"
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#include "jsperf.h"
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#include "mozilla/ModuleUtils.h"
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#include "nsMemory.h"
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#define JSPERF_CONTRACTID \
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"@mozilla.org/jsperf;1"
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#define JSPERF_CID \
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{ 0x421c38e6, 0xaee0, 0x4509, \
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{ 0xa0, 0x25, 0x13, 0x0f, 0x43, 0x78, 0x03, 0x5a } }
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namespace mozilla {
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namespace jsperf {
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NS_GENERIC_FACTORY_CONSTRUCTOR(Module)
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NS_IMPL_ISUPPORTS1(Module, nsIXPCScriptable)
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Module::Module()
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{
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}
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Module::~Module()
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{
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}
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#define XPC_MAP_CLASSNAME Module
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#define XPC_MAP_QUOTED_CLASSNAME "Module"
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#define XPC_MAP_WANT_CALL
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#define XPC_MAP_FLAGS nsIXPCScriptable::WANT_CALL
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#include "xpc_map_end.h"
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static JSBool
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SealObjectAndPrototype(JSContext* cx, JSObject* parent, const char* name)
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{
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jsval prop;
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if (!JS_GetProperty(cx, parent, name, &prop))
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return false;
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JSObject* obj = JSVAL_TO_OBJECT(prop);
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if (!JS_GetProperty(cx, obj, "prototype", &prop))
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return false;
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JSObject* prototype = JSVAL_TO_OBJECT(prop);
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return JS_FreezeObject(cx, obj) && JS_FreezeObject(cx, prototype);
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}
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static JSBool
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InitAndSealPerfMeasurementClass(JSContext* cx, JSObject* global)
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{
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// Init the PerfMeasurement class
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if (!JS::RegisterPerfMeasurement(cx, global))
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return false;
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// Seal up Object, Function, and Array and their prototypes. (This single
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// object instance is shared amongst everyone who imports the jsperf module.)
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if (!SealObjectAndPrototype(cx, global, "Object") ||
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!SealObjectAndPrototype(cx, global, "Function") ||
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!SealObjectAndPrototype(cx, global, "Array"))
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return false;
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// Finally, seal the global object, for good measure. (But not recursively;
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// this breaks things.)
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return JS_FreezeObject(cx, global);
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}
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NS_IMETHODIMP
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Module::Call(nsIXPConnectWrappedNative* wrapper,
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JSContext* cx,
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JSObject* obj,
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PRUint32 argc,
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jsval* argv,
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jsval* vp,
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PRBool* _retval)
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{
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JSObject* scope = JS_GetScopeChain(cx);
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if (!scope)
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return NS_ERROR_NOT_AVAILABLE;
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JSObject* global = JS_GetGlobalForObject(cx, scope);
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if (!global)
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return NS_ERROR_NOT_AVAILABLE;
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*_retval = InitAndSealPerfMeasurementClass(cx, global);
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return NS_OK;
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}
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}
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}
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NS_DEFINE_NAMED_CID(JSPERF_CID);
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static const mozilla::Module::CIDEntry kPerfCIDs[] = {
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{ &kJSPERF_CID, false, NULL, mozilla::jsperf::ModuleConstructor },
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{ NULL }
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};
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static const mozilla::Module::ContractIDEntry kPerfContracts[] = {
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{ JSPERF_CONTRACTID, &kJSPERF_CID },
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{ NULL }
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};
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static const mozilla::Module kPerfModule = {
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mozilla::Module::kVersion,
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kPerfCIDs,
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kPerfContracts
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};
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NSMODULE_DEFN(jsperf) = &kPerfModule;
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