X-Git-Url: https://git.saurik.com/apple/javascriptcore.git/blobdiff_plain/b5422865f473faf3977f31b96a635c4c8c4ede09..9dae56ea45a0f5f8136a5c93d6f3a7f99399ca73:/kjs/JSGlobalObject.cpp diff --git a/kjs/JSGlobalObject.cpp b/kjs/JSGlobalObject.cpp deleted file mode 100644 index 75747d7..0000000 --- a/kjs/JSGlobalObject.cpp +++ /dev/null @@ -1,568 +0,0 @@ -/* - * Copyright (C) 2007, 2008 Apple Inc. All rights reserved. - * Copyright (C) 2008 Cameron Zwarich (cwzwarich@uwaterloo.ca) - * - * 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. - * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of - * its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 "JSGlobalObject.h" - -#include "Activation.h" -#include "array_object.h" -#include "bool_object.h" -#include "date_object.h" -#include "debugger.h" -#include "error_object.h" -#include "function_object.h" -#include "math_object.h" -#include "number_object.h" -#include "object_object.h" -#include "regexp_object.h" -#include "SavedBuiltins.h" -#include "string_object.h" - -#if HAVE(SYS_TIME_H) -#include -#endif - -#if PLATFORM(WIN_OS) -#include -#endif - -#if PLATFORM(QT) -#include -#endif - -namespace KJS { - -// Default number of ticks before a timeout check should be done. -static const int initialTickCountThreshold = 255; - -// Preferred number of milliseconds between each timeout check -static const int preferredScriptCheckTimeInterval = 1000; - -static inline void markIfNeeded(JSValue* v) -{ - if (v && !v->marked()) - v->mark(); -} - -// Returns the current time in milliseconds -// It doesn't matter what "current time" is here, just as long as -// it's possible to measure the time difference correctly. -static inline unsigned getCurrentTime() -{ -#if HAVE(SYS_TIME_H) - struct timeval tv; - gettimeofday(&tv, 0); - return tv.tv_sec * 1000 + tv.tv_usec / 1000; -#elif PLATFORM(QT) - QDateTime t = QDateTime::currentDateTime(); - return t.toTime_t() * 1000 + t.time().msec(); -#elif PLATFORM(WIN_OS) - return timeGetTime(); -#else -#error Platform does not have getCurrentTime function -#endif -} - -JSGlobalObject* JSGlobalObject::s_head = 0; - -void JSGlobalObject::deleteActivationStack() -{ - ActivationStackNode* prevNode = 0; - for (ActivationStackNode* currentNode = d()->activations; currentNode; currentNode = prevNode) { - prevNode = currentNode->prev; - delete currentNode; - } -} - -JSGlobalObject::~JSGlobalObject() -{ - ASSERT(JSLock::currentThreadIsHoldingLock()); - - if (d()->debugger) - d()->debugger->detach(this); - - d()->next->d()->prev = d()->prev; - d()->prev->d()->next = d()->next; - s_head = d()->next; - if (s_head == this) - s_head = 0; - - deleteActivationStack(); - - delete d(); -} - -void JSGlobalObject::init() -{ - ASSERT(JSLock::currentThreadIsHoldingLock()); - - if (s_head) { - d()->prev = s_head; - d()->next = s_head->d()->next; - s_head->d()->next->d()->prev = this; - s_head->d()->next = this; - } else - s_head = d()->next = d()->prev = this; - - d()->compatMode = NativeMode; - - resetTimeoutCheck(); - d()->timeoutTime = 0; - d()->timeoutCheckCount = 0; - - d()->recursion = 0; - d()->debugger = 0; - - ActivationStackNode* newStackNode = new ActivationStackNode; - newStackNode->prev = 0; - d()->activations = newStackNode; - d()->activationCount = 0; - - reset(prototype()); -} - -bool JSGlobalObject::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot) -{ - if (symbolTableGet(propertyName, slot)) - return true; - return JSVariableObject::getOwnPropertySlot(exec, propertyName, slot); -} - -void JSGlobalObject::put(ExecState* exec, const Identifier& propertyName, JSValue* value, int attr) -{ - if (symbolTablePut(propertyName, value, !(attr & ~DontDelete))) - return; - return JSVariableObject::put(exec, propertyName, value, attr); -} - -static inline JSObject* lastInPrototypeChain(JSObject* object) -{ - JSObject* o = object; - while (o->prototype()->isObject()) - o = static_cast(o->prototype()); - return o; -} - -void JSGlobalObject::reset(JSValue* prototype) -{ - // Clear before inititalizing, to avoid calling mark() on stale pointers -- - // which would be wasteful -- or uninitialized pointers -- which would be - // dangerous. (The allocations below may cause a GC.) - - _prop.clear(); - localStorage().clear(); - symbolTable().clear(); - - // Prototypes - d()->functionPrototype = 0; - d()->objectPrototype = 0; - - d()->arrayPrototype = 0; - d()->stringPrototype = 0; - d()->booleanPrototype = 0; - d()->numberPrototype = 0; - d()->datePrototype = 0; - d()->regExpPrototype = 0; - d()->errorPrototype = 0; - - d()->evalErrorPrototype = 0; - d()->rangeErrorPrototype = 0; - d()->referenceErrorPrototype = 0; - d()->syntaxErrorPrototype = 0; - d()->typeErrorPrototype = 0; - d()->URIErrorPrototype = 0; - - // Constructors - d()->objectConstructor = 0; - d()->functionConstructor = 0; - d()->arrayConstructor = 0; - d()->stringConstructor = 0; - d()->booleanConstructor = 0; - d()->numberConstructor = 0; - d()->dateConstructor = 0; - d()->regExpConstructor = 0; - d()->errorConstructor = 0; - - d()->evalErrorConstructor = 0; - d()->rangeErrorConstructor = 0; - d()->referenceErrorConstructor = 0; - d()->syntaxErrorConstructor = 0; - d()->typeErrorConstructor = 0; - d()->URIErrorConstructor = 0; - - ExecState* exec = &d()->globalExec; - - // Prototypes - d()->functionPrototype = new FunctionPrototype(exec); - d()->objectPrototype = new ObjectPrototype(exec, d()->functionPrototype); - d()->functionPrototype->setPrototype(d()->objectPrototype); - - d()->arrayPrototype = new ArrayPrototype(exec, d()->objectPrototype); - d()->stringPrototype = new StringPrototype(exec, d()->objectPrototype); - d()->booleanPrototype = new BooleanPrototype(exec, d()->objectPrototype, d()->functionPrototype); - d()->numberPrototype = new NumberPrototype(exec, d()->objectPrototype, d()->functionPrototype); - d()->datePrototype = new DatePrototype(exec, d()->objectPrototype); - d()->regExpPrototype = new RegExpPrototype(exec, d()->objectPrototype, d()->functionPrototype); - d()->errorPrototype = new ErrorPrototype(exec, d()->objectPrototype, d()->functionPrototype); - - d()->evalErrorPrototype = new NativeErrorPrototype(exec, d()->errorPrototype, "EvalError", "EvalError"); - d()->rangeErrorPrototype = new NativeErrorPrototype(exec, d()->errorPrototype, "RangeError", "RangeError"); - d()->referenceErrorPrototype = new NativeErrorPrototype(exec, d()->errorPrototype, "ReferenceError", "ReferenceError"); - d()->syntaxErrorPrototype = new NativeErrorPrototype(exec, d()->errorPrototype, "SyntaxError", "SyntaxError"); - d()->typeErrorPrototype = new NativeErrorPrototype(exec, d()->errorPrototype, "TypeError", "TypeError"); - d()->URIErrorPrototype = new NativeErrorPrototype(exec, d()->errorPrototype, "URIError", "URIError"); - - // Constructors - d()->objectConstructor = new ObjectObjectImp(exec, d()->objectPrototype, d()->functionPrototype); - d()->functionConstructor = new FunctionObjectImp(exec, d()->functionPrototype); - d()->arrayConstructor = new ArrayObjectImp(exec, d()->functionPrototype, d()->arrayPrototype); - d()->stringConstructor = new StringObjectImp(exec, d()->functionPrototype, d()->stringPrototype); - d()->booleanConstructor = new BooleanObjectImp(exec, d()->functionPrototype, d()->booleanPrototype); - d()->numberConstructor = new NumberObjectImp(exec, d()->functionPrototype, d()->numberPrototype); - d()->dateConstructor = new DateObjectImp(exec, d()->functionPrototype, d()->datePrototype); - d()->regExpConstructor = new RegExpObjectImp(exec, d()->functionPrototype, d()->regExpPrototype); - d()->errorConstructor = new ErrorObjectImp(exec, d()->functionPrototype, d()->errorPrototype); - - d()->evalErrorConstructor = new NativeErrorImp(exec, d()->functionPrototype, d()->evalErrorPrototype); - d()->rangeErrorConstructor = new NativeErrorImp(exec, d()->functionPrototype, d()->rangeErrorPrototype); - d()->referenceErrorConstructor = new NativeErrorImp(exec, d()->functionPrototype, d()->referenceErrorPrototype); - d()->syntaxErrorConstructor = new NativeErrorImp(exec, d()->functionPrototype, d()->syntaxErrorPrototype); - d()->typeErrorConstructor = new NativeErrorImp(exec, d()->functionPrototype, d()->typeErrorPrototype); - d()->URIErrorConstructor = new NativeErrorImp(exec, d()->functionPrototype, d()->URIErrorPrototype); - - d()->functionPrototype->putDirect(exec->propertyNames().constructor, d()->functionConstructor, DontEnum); - - d()->objectPrototype->putDirect(exec->propertyNames().constructor, d()->objectConstructor, DontEnum | DontDelete | ReadOnly); - d()->functionPrototype->putDirect(exec->propertyNames().constructor, d()->functionConstructor, DontEnum | DontDelete | ReadOnly); - d()->arrayPrototype->putDirect(exec->propertyNames().constructor, d()->arrayConstructor, DontEnum | DontDelete | ReadOnly); - d()->booleanPrototype->putDirect(exec->propertyNames().constructor, d()->booleanConstructor, DontEnum | DontDelete | ReadOnly); - d()->stringPrototype->putDirect(exec->propertyNames().constructor, d()->stringConstructor, DontEnum | DontDelete | ReadOnly); - d()->numberPrototype->putDirect(exec->propertyNames().constructor, d()->numberConstructor, DontEnum | DontDelete | ReadOnly); - d()->datePrototype->putDirect(exec->propertyNames().constructor, d()->dateConstructor, DontEnum | DontDelete | ReadOnly); - d()->regExpPrototype->putDirect(exec->propertyNames().constructor, d()->regExpConstructor, DontEnum | DontDelete | ReadOnly); - d()->errorPrototype->putDirect(exec->propertyNames().constructor, d()->errorConstructor, DontEnum | DontDelete | ReadOnly); - d()->evalErrorPrototype->putDirect(exec->propertyNames().constructor, d()->evalErrorConstructor, DontEnum | DontDelete | ReadOnly); - d()->rangeErrorPrototype->putDirect(exec->propertyNames().constructor, d()->rangeErrorConstructor, DontEnum | DontDelete | ReadOnly); - d()->referenceErrorPrototype->putDirect(exec->propertyNames().constructor, d()->referenceErrorConstructor, DontEnum | DontDelete | ReadOnly); - d()->syntaxErrorPrototype->putDirect(exec->propertyNames().constructor, d()->syntaxErrorConstructor, DontEnum | DontDelete | ReadOnly); - d()->typeErrorPrototype->putDirect(exec->propertyNames().constructor, d()->typeErrorConstructor, DontEnum | DontDelete | ReadOnly); - d()->URIErrorPrototype->putDirect(exec->propertyNames().constructor, d()->URIErrorConstructor, DontEnum | DontDelete | ReadOnly); - - // Set global constructors - - // FIXME: kjs_window.cpp checks Internal/DontEnum as a performance hack, to - // see that these values can be put directly without a check for override - // properties. - - // FIXME: These properties should be handled by a static hash table. - - putDirect("Object", d()->objectConstructor, DontEnum); - putDirect("Function", d()->functionConstructor, DontEnum); - putDirect("Array", d()->arrayConstructor, DontEnum); - putDirect("Boolean", d()->booleanConstructor, DontEnum); - putDirect("String", d()->stringConstructor, DontEnum); - putDirect("Number", d()->numberConstructor, DontEnum); - putDirect("Date", d()->dateConstructor, DontEnum); - putDirect("RegExp", d()->regExpConstructor, DontEnum); - putDirect("Error", d()->errorConstructor, DontEnum); - putDirect("EvalError", d()->evalErrorConstructor, Internal); - putDirect("RangeError", d()->rangeErrorConstructor, Internal); - putDirect("ReferenceError", d()->referenceErrorConstructor, Internal); - putDirect("SyntaxError", d()->syntaxErrorConstructor, Internal); - putDirect("TypeError", d()->typeErrorConstructor, Internal); - putDirect("URIError", d()->URIErrorConstructor, Internal); - - // Set global values. - - putDirect("Math", new MathObjectImp(exec, d()->objectPrototype), DontEnum); - - putDirect("NaN", jsNaN(), DontEnum | DontDelete); - putDirect("Infinity", jsNumber(Inf), DontEnum | DontDelete); - putDirect("undefined", jsUndefined(), DontEnum | DontDelete); - - // Set global functions. - - putDirectFunction(new PrototypeFunction(exec, d()->functionPrototype, 1, "eval", globalFuncEval), DontEnum); - putDirectFunction(new PrototypeFunction(exec, d()->functionPrototype, 2, "parseInt", globalFuncParseInt), DontEnum); - putDirectFunction(new PrototypeFunction(exec, d()->functionPrototype, 1, "parseFloat", globalFuncParseFloat), DontEnum); - putDirectFunction(new PrototypeFunction(exec, d()->functionPrototype, 1, "isNaN", globalFuncIsNaN), DontEnum); - putDirectFunction(new PrototypeFunction(exec, d()->functionPrototype, 1, "isFinite", globalFuncIsFinite), DontEnum); - putDirectFunction(new PrototypeFunction(exec, d()->functionPrototype, 1, "escape", globalFuncEscape), DontEnum); - putDirectFunction(new PrototypeFunction(exec, d()->functionPrototype, 1, "unescape", globalFuncUnescape), DontEnum); - putDirectFunction(new PrototypeFunction(exec, d()->functionPrototype, 1, "decodeURI", globalFuncDecodeURI), DontEnum); - putDirectFunction(new PrototypeFunction(exec, d()->functionPrototype, 1, "decodeURIComponent", globalFuncDecodeURIComponent), DontEnum); - putDirectFunction(new PrototypeFunction(exec, d()->functionPrototype, 1, "encodeURI", globalFuncEncodeURI), DontEnum); - putDirectFunction(new PrototypeFunction(exec, d()->functionPrototype, 1, "encodeURIComponent", globalFuncEncodeURIComponent), DontEnum); -#ifndef NDEBUG - putDirectFunction(new PrototypeFunction(exec, d()->functionPrototype, 1, "kjsprint", globalFuncKJSPrint), DontEnum); -#endif - - // Set prototype, and also insert the object prototype at the end of the chain. - - setPrototype(prototype); - lastInPrototypeChain(this)->setPrototype(d()->objectPrototype); -} - -void JSGlobalObject::startTimeoutCheck() -{ - if (!d()->timeoutCheckCount) - resetTimeoutCheck(); - - ++d()->timeoutCheckCount; -} - -void JSGlobalObject::stopTimeoutCheck() -{ - --d()->timeoutCheckCount; -} - -void JSGlobalObject::resetTimeoutCheck() -{ - d()->tickCount = 0; - d()->ticksUntilNextTimeoutCheck = initialTickCountThreshold; - d()->timeAtLastCheckTimeout = 0; - d()->timeExecuting = 0; -} - -bool JSGlobalObject::checkTimeout() -{ - d()->tickCount = 0; - - unsigned currentTime = getCurrentTime(); - - if (!d()->timeAtLastCheckTimeout) { - // Suspicious amount of looping in a script -- start timing it - d()->timeAtLastCheckTimeout = currentTime; - return false; - } - - unsigned timeDiff = currentTime - d()->timeAtLastCheckTimeout; - - if (timeDiff == 0) - timeDiff = 1; - - d()->timeExecuting += timeDiff; - d()->timeAtLastCheckTimeout = currentTime; - - // Adjust the tick threshold so we get the next checkTimeout call in the interval specified in - // preferredScriptCheckTimeInterval - d()->ticksUntilNextTimeoutCheck = (unsigned)((float)preferredScriptCheckTimeInterval / timeDiff) * d()->ticksUntilNextTimeoutCheck; - - // If the new threshold is 0 reset it to the default threshold. This can happen if the timeDiff is higher than the - // preferred script check time interval. - if (d()->ticksUntilNextTimeoutCheck == 0) - d()->ticksUntilNextTimeoutCheck = initialTickCountThreshold; - - if (shouldInterruptScriptBeforeTimeout()) - return true; - - if (d()->timeoutTime && d()->timeExecuting > d()->timeoutTime) { - if (shouldInterruptScript()) - return true; - - resetTimeoutCheck(); - } - - return false; -} - -void JSGlobalObject::saveBuiltins(SavedBuiltins& builtins) const -{ - if (!builtins._internal) - builtins._internal = new SavedBuiltinsInternal; - - builtins._internal->objectConstructor = d()->objectConstructor; - builtins._internal->functionConstructor = d()->functionConstructor; - builtins._internal->arrayConstructor = d()->arrayConstructor; - builtins._internal->booleanConstructor = d()->booleanConstructor; - builtins._internal->stringConstructor = d()->stringConstructor; - builtins._internal->numberConstructor = d()->numberConstructor; - builtins._internal->dateConstructor = d()->dateConstructor; - builtins._internal->regExpConstructor = d()->regExpConstructor; - builtins._internal->errorConstructor = d()->errorConstructor; - builtins._internal->evalErrorConstructor = d()->evalErrorConstructor; - builtins._internal->rangeErrorConstructor = d()->rangeErrorConstructor; - builtins._internal->referenceErrorConstructor = d()->referenceErrorConstructor; - builtins._internal->syntaxErrorConstructor = d()->syntaxErrorConstructor; - builtins._internal->typeErrorConstructor = d()->typeErrorConstructor; - builtins._internal->URIErrorConstructor = d()->URIErrorConstructor; - - builtins._internal->objectPrototype = d()->objectPrototype; - builtins._internal->functionPrototype = d()->functionPrototype; - builtins._internal->arrayPrototype = d()->arrayPrototype; - builtins._internal->booleanPrototype = d()->booleanPrototype; - builtins._internal->stringPrototype = d()->stringPrototype; - builtins._internal->numberPrototype = d()->numberPrototype; - builtins._internal->datePrototype = d()->datePrototype; - builtins._internal->regExpPrototype = d()->regExpPrototype; - builtins._internal->errorPrototype = d()->errorPrototype; - builtins._internal->evalErrorPrototype = d()->evalErrorPrototype; - builtins._internal->rangeErrorPrototype = d()->rangeErrorPrototype; - builtins._internal->referenceErrorPrototype = d()->referenceErrorPrototype; - builtins._internal->syntaxErrorPrototype = d()->syntaxErrorPrototype; - builtins._internal->typeErrorPrototype = d()->typeErrorPrototype; - builtins._internal->URIErrorPrototype = d()->URIErrorPrototype; -} - -void JSGlobalObject::restoreBuiltins(const SavedBuiltins& builtins) -{ - if (!builtins._internal) - return; - - d()->objectConstructor = builtins._internal->objectConstructor; - d()->functionConstructor = builtins._internal->functionConstructor; - d()->arrayConstructor = builtins._internal->arrayConstructor; - d()->booleanConstructor = builtins._internal->booleanConstructor; - d()->stringConstructor = builtins._internal->stringConstructor; - d()->numberConstructor = builtins._internal->numberConstructor; - d()->dateConstructor = builtins._internal->dateConstructor; - d()->regExpConstructor = builtins._internal->regExpConstructor; - d()->errorConstructor = builtins._internal->errorConstructor; - d()->evalErrorConstructor = builtins._internal->evalErrorConstructor; - d()->rangeErrorConstructor = builtins._internal->rangeErrorConstructor; - d()->referenceErrorConstructor = builtins._internal->referenceErrorConstructor; - d()->syntaxErrorConstructor = builtins._internal->syntaxErrorConstructor; - d()->typeErrorConstructor = builtins._internal->typeErrorConstructor; - d()->URIErrorConstructor = builtins._internal->URIErrorConstructor; - - d()->objectPrototype = builtins._internal->objectPrototype; - d()->functionPrototype = builtins._internal->functionPrototype; - d()->arrayPrototype = builtins._internal->arrayPrototype; - d()->booleanPrototype = builtins._internal->booleanPrototype; - d()->stringPrototype = builtins._internal->stringPrototype; - d()->numberPrototype = builtins._internal->numberPrototype; - d()->datePrototype = builtins._internal->datePrototype; - d()->regExpPrototype = builtins._internal->regExpPrototype; - d()->errorPrototype = builtins._internal->errorPrototype; - d()->evalErrorPrototype = builtins._internal->evalErrorPrototype; - d()->rangeErrorPrototype = builtins._internal->rangeErrorPrototype; - d()->referenceErrorPrototype = builtins._internal->referenceErrorPrototype; - d()->syntaxErrorPrototype = builtins._internal->syntaxErrorPrototype; - d()->typeErrorPrototype = builtins._internal->typeErrorPrototype; - d()->URIErrorPrototype = builtins._internal->URIErrorPrototype; -} - -void JSGlobalObject::mark() -{ - JSVariableObject::mark(); - - markIfNeeded(d()->globalExec.exception()); - - markIfNeeded(d()->objectConstructor); - markIfNeeded(d()->functionConstructor); - markIfNeeded(d()->arrayConstructor); - markIfNeeded(d()->booleanConstructor); - markIfNeeded(d()->stringConstructor); - markIfNeeded(d()->numberConstructor); - markIfNeeded(d()->dateConstructor); - markIfNeeded(d()->regExpConstructor); - markIfNeeded(d()->errorConstructor); - markIfNeeded(d()->evalErrorConstructor); - markIfNeeded(d()->rangeErrorConstructor); - markIfNeeded(d()->referenceErrorConstructor); - markIfNeeded(d()->syntaxErrorConstructor); - markIfNeeded(d()->typeErrorConstructor); - markIfNeeded(d()->URIErrorConstructor); - - markIfNeeded(d()->objectPrototype); - markIfNeeded(d()->functionPrototype); - markIfNeeded(d()->arrayPrototype); - markIfNeeded(d()->booleanPrototype); - markIfNeeded(d()->stringPrototype); - markIfNeeded(d()->numberPrototype); - markIfNeeded(d()->datePrototype); - markIfNeeded(d()->regExpPrototype); - markIfNeeded(d()->errorPrototype); - markIfNeeded(d()->evalErrorPrototype); - markIfNeeded(d()->rangeErrorPrototype); - markIfNeeded(d()->referenceErrorPrototype); - markIfNeeded(d()->syntaxErrorPrototype); - markIfNeeded(d()->typeErrorPrototype); - markIfNeeded(d()->URIErrorPrototype); -} - -ExecState* JSGlobalObject::globalExec() -{ - return &d()->globalExec; -} - -ActivationImp* JSGlobalObject::pushActivation(ExecState* exec) -{ - if (d()->activationCount == activationStackNodeSize) { - ActivationStackNode* newNode = new ActivationStackNode; - newNode->prev = d()->activations; - d()->activations = newNode; - d()->activationCount = 0; - } - - StackActivation* stackEntry = &d()->activations->data[d()->activationCount++]; - stackEntry->activationStorage.init(exec); - return &stackEntry->activationStorage; -} - -inline void JSGlobalObject::checkActivationCount() -{ - if (!d()->activationCount) { - ActivationStackNode* prev = d()->activations->prev; - ASSERT(prev); - delete d()->activations; - d()->activations = prev; - d()->activationCount = activationStackNodeSize; - } -} - -void JSGlobalObject::popActivation() -{ - checkActivationCount(); - d()->activations->data[--d()->activationCount].activationDataStorage.localStorage.shrink(0); -} - -void JSGlobalObject::tearOffActivation(ExecState* exec, bool leaveRelic) -{ - ActivationImp* oldActivation = exec->activationObject(); - if (!oldActivation || !oldActivation->isOnStack()) - return; - - ASSERT(exec->codeType() == FunctionCode); - ActivationImp* newActivation = new ActivationImp(*oldActivation->d(), leaveRelic); - - if (!leaveRelic) { - checkActivationCount(); - d()->activationCount--; - } - - oldActivation->d()->localStorage.shrink(0); - - exec->setActivationObject(newActivation); - exec->setVariableObject(newActivation); - exec->setLocalStorage(&newActivation->localStorage()); - exec->replaceScopeChainTop(newActivation); -} - -} // namespace KJS