/* | |
* Copyright (C) 2006, 2007 Apple Inc. All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* | |
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
#include "config.h" | |
#include "JSBase.h" | |
#include "JSBasePrivate.h" | |
#include "APICast.h" | |
#include "APIShims.h" | |
#include "Completion.h" | |
#include "OpaqueJSString.h" | |
#include "SourceCode.h" | |
#include <interpreter/CallFrame.h> | |
#include <runtime/InitializeThreading.h> | |
#include <runtime/Completion.h> | |
#include <runtime/JSGlobalObject.h> | |
#include <runtime/JSLock.h> | |
#include <runtime/JSObject.h> | |
using namespace JSC; | |
JSValueRef JSEvaluateScript(JSContextRef ctx, JSStringRef script, JSObjectRef thisObject, JSStringRef sourceURL, int startingLineNumber, JSValueRef* exception) | |
{ | |
ExecState* exec = toJS(ctx); | |
APIEntryShim entryShim(exec); | |
JSObject* jsThisObject = toJS(thisObject); | |
// evaluate sets "this" to the global object if it is NULL | |
JSGlobalObject* globalObject = exec->dynamicGlobalObject(); | |
SourceCode source = makeSource(script->ustring(), sourceURL->ustring(), startingLineNumber); | |
Completion completion = evaluate(globalObject->globalExec(), globalObject->globalScopeChain(), source, jsThisObject); | |
if (completion.complType() == Throw) { | |
if (exception) | |
*exception = toRef(exec, completion.value()); | |
return 0; | |
} | |
if (completion.value()) | |
return toRef(exec, completion.value()); | |
// happens, for example, when the only statement is an empty (';') statement | |
return toRef(exec, jsUndefined()); | |
} | |
bool JSCheckScriptSyntax(JSContextRef ctx, JSStringRef script, JSStringRef sourceURL, int startingLineNumber, JSValueRef* exception) | |
{ | |
ExecState* exec = toJS(ctx); | |
APIEntryShim entryShim(exec); | |
SourceCode source = makeSource(script->ustring(), sourceURL->ustring(), startingLineNumber); | |
Completion completion = checkSyntax(exec->dynamicGlobalObject()->globalExec(), source); | |
if (completion.complType() == Throw) { | |
if (exception) | |
*exception = toRef(exec, completion.value()); | |
return false; | |
} | |
return true; | |
} | |
void JSGarbageCollect(JSContextRef ctx) | |
{ | |
// We used to recommend passing NULL as an argument here, which caused the only heap to be collected. | |
// As there is no longer a shared heap, the previously recommended usage became a no-op (but the GC | |
// will happen when the context group is destroyed). | |
// Because the function argument was originally ignored, some clients may pass their released context here, | |
// in which case there is a risk of crashing if another thread performs GC on the same heap in between. | |
if (!ctx) | |
return; | |
ExecState* exec = toJS(ctx); | |
APIEntryShim entryShim(exec, false); | |
JSGlobalData& globalData = exec->globalData(); | |
if (!globalData.heap.isBusy()) | |
globalData.heap.collectAllGarbage(); | |
// FIXME: Perhaps we should trigger a second mark and sweep | |
// once the garbage collector is done if this is called when | |
// the collector is busy. | |
} | |
void JSReportExtraMemoryCost(JSContextRef ctx, size_t size) | |
{ | |
ExecState* exec = toJS(ctx); | |
APIEntryShim entryShim(exec); | |
exec->globalData().heap.reportExtraMemoryCost(size); | |
} |