summaryrefslogtreecommitdiffstats
path: root/src/3rdparty/webkit/JavaScriptCore/parser/Parser.cpp
diff options
context:
space:
mode:
authorThierry Bastian <thierry.bastian@nokia.com>2009-08-11 12:40:12 (GMT)
committerThierry Bastian <thierry.bastian@nokia.com>2009-08-11 12:42:49 (GMT)
commite08c698d48a3179515e0392843c77efcac892134 (patch)
tree825660f0daa8c707d7268913dc61bbc9098fce67 /src/3rdparty/webkit/JavaScriptCore/parser/Parser.cpp
parentb81b46407299c0b03fffab60d6d87cc71b57cd34 (diff)
downloadQt-e08c698d48a3179515e0392843c77efcac892134.zip
Qt-e08c698d48a3179515e0392843c77efcac892134.tar.gz
Qt-e08c698d48a3179515e0392843c77efcac892134.tar.bz2
Phonon::VideoWidget still flickering
small patch to make sure even the native events of the pending ones won't trigger anything in the paintevent Task-number: 251776
Diffstat (limited to 'src/3rdparty/webkit/JavaScriptCore/parser/Parser.cpp')
0 files changed, 0 insertions, 0 deletions
ef='#n121'>121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496
/*
 * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
 * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
 *
 * 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 "APICast.h"
#include "Error.h"
#include "JSCallbackFunction.h"
#include "JSClassRef.h"
#include "JSGlobalObject.h"
#include "JSLock.h"
#include "JSObjectRef.h"
#include "JSString.h"
#include "JSStringRef.h"
#include "OpaqueJSString.h"
#include "PropertyNameArray.h"
#include <wtf/Vector.h>

namespace JSC {

template <class Base>
inline JSCallbackObject<Base>* JSCallbackObject<Base>::asCallbackObject(JSValuePtr value)
{
    ASSERT(asObject(value)->inherits(&info));
    return static_cast<JSCallbackObject*>(asObject(value));
}

template <class Base>
JSCallbackObject<Base>::JSCallbackObject(ExecState* exec, PassRefPtr<Structure> structure, JSClassRef jsClass, void* data)
    : Base(structure)
    , m_callbackObjectData(new JSCallbackObjectData(data, jsClass))
{
    init(exec);
}

// Global object constructor.
// FIXME: Move this into a separate JSGlobalCallbackObject class derived from this one.
template <class Base>
JSCallbackObject<Base>::JSCallbackObject(JSClassRef jsClass)
    : Base()
    , m_callbackObjectData(new JSCallbackObjectData(0, jsClass))
{
    ASSERT(Base::isGlobalObject());
    init(static_cast<JSGlobalObject*>(this)->globalExec());
}

template <class Base>
void JSCallbackObject<Base>::init(ExecState* exec)
{
    ASSERT(exec);
    
    Vector<JSObjectInitializeCallback, 16> initRoutines;
    JSClassRef jsClass = classRef();
    do {
        if (JSObjectInitializeCallback initialize = jsClass->initialize)
            initRoutines.append(initialize);
    } while ((jsClass = jsClass->parentClass));
    
    // initialize from base to derived
    for (int i = static_cast<int>(initRoutines.size()) - 1; i >= 0; i--) {
        JSLock::DropAllLocks dropAllLocks(exec);
        JSObjectInitializeCallback initialize = initRoutines[i];
        initialize(toRef(exec), toRef(this));
    }
}

template <class Base>
JSCallbackObject<Base>::~JSCallbackObject()
{
    JSObjectRef thisRef = toRef(this);
    
    for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass)
        if (JSObjectFinalizeCallback finalize = jsClass->finalize)
            finalize(thisRef);
}

template <class Base>
UString JSCallbackObject<Base>::className() const
{
    UString thisClassName = classRef()->className();
    if (!thisClassName.isNull())
        return thisClassName;
    
    return Base::className();
}

template <class Base>
bool JSCallbackObject<Base>::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)
{
    JSContextRef ctx = toRef(exec);
    JSObjectRef thisRef = toRef(this);
    RefPtr<OpaqueJSString> propertyNameRef;
    
    for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass) {
        // optional optimization to bypass getProperty in cases when we only need to know if the property exists
        if (JSObjectHasPropertyCallback hasProperty = jsClass->hasProperty) {
            if (!propertyNameRef)
                propertyNameRef = OpaqueJSString::create(propertyName.ustring());
            JSLock::DropAllLocks dropAllLocks(exec);
            if (hasProperty(ctx, thisRef, propertyNameRef.get())) {
                slot.setCustom(this, callbackGetter);
                return true;
            }
        } else if (JSObjectGetPropertyCallback getProperty = jsClass->getProperty) {
            if (!propertyNameRef)
                propertyNameRef = OpaqueJSString::create(propertyName.ustring());
            JSLock::DropAllLocks dropAllLocks(exec);
            if (JSValueRef value = getProperty(ctx, thisRef, propertyNameRef.get(), toRef(exec->exceptionSlot()))) {
                slot.setValue(toJS(value));
                return true;
            }
        }
        
        if (OpaqueJSClassStaticValuesTable* staticValues = jsClass->staticValues(exec)) {
            if (staticValues->contains(propertyName.ustring().rep())) {
                slot.setCustom(this, staticValueGetter);
                return true;
            }
        }
        
        if (OpaqueJSClassStaticFunctionsTable* staticFunctions = jsClass->staticFunctions(exec)) {
            if (staticFunctions->contains(propertyName.ustring().rep())) {
                slot.setCustom(this, staticFunctionGetter);
                return true;
            }
        }
    }
    
    return Base::getOwnPropertySlot(exec, propertyName, slot);
}

template <class Base>
bool JSCallbackObject<Base>::getOwnPropertySlot(ExecState* exec, unsigned propertyName, PropertySlot& slot)
{
    return getOwnPropertySlot(exec, Identifier::from(exec, propertyName), slot);
}

template <class Base>
void JSCallbackObject<Base>::put(ExecState* exec, const Identifier& propertyName, JSValuePtr value, PutPropertySlot& slot)
{
    JSContextRef ctx = toRef(exec);
    JSObjectRef thisRef = toRef(this);
    RefPtr<OpaqueJSString> propertyNameRef;
    JSValueRef valueRef = toRef(value);
    
    for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass) {
        if (JSObjectSetPropertyCallback setProperty = jsClass->setProperty) {
            if (!propertyNameRef)
                propertyNameRef = OpaqueJSString::create(propertyName.ustring());
            JSLock::DropAllLocks dropAllLocks(exec);
            if (setProperty(ctx, thisRef, propertyNameRef.get(), valueRef, toRef(exec->exceptionSlot())))
                return;
        }
        
        if (OpaqueJSClassStaticValuesTable* staticValues = jsClass->staticValues(exec)) {
            if (StaticValueEntry* entry = staticValues->get(propertyName.ustring().rep())) {
                if (entry->attributes & kJSPropertyAttributeReadOnly)
                    return;
                if (JSObjectSetPropertyCallback setProperty = entry->setProperty) {
                    if (!propertyNameRef)
                        propertyNameRef = OpaqueJSString::create(propertyName.ustring());
                    JSLock::DropAllLocks dropAllLocks(exec);
                    if (setProperty(ctx, thisRef, propertyNameRef.get(), valueRef, toRef(exec->exceptionSlot())))
                        return;
                } else
                    throwError(exec, ReferenceError, "Attempt to set a property that is not settable.");
            }
        }
        
        if (OpaqueJSClassStaticFunctionsTable* staticFunctions = jsClass->staticFunctions(exec)) {
            if (StaticFunctionEntry* entry = staticFunctions->get(propertyName.ustring().rep())) {
                if (entry->attributes & kJSPropertyAttributeReadOnly)
                    return;
                JSCallbackObject<Base>::putDirect(propertyName, value); // put as override property
                return;
            }
        }
    }
    
    return Base::put(exec, propertyName, value, slot);
}

template <class Base>
bool JSCallbackObject<Base>::deleteProperty(ExecState* exec, const Identifier& propertyName)
{
    JSContextRef ctx = toRef(exec);
    JSObjectRef thisRef = toRef(this);
    RefPtr<OpaqueJSString> propertyNameRef;
    
    for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass) {
        if (JSObjectDeletePropertyCallback deleteProperty = jsClass->deleteProperty) {
            if (!propertyNameRef)
                propertyNameRef = OpaqueJSString::create(propertyName.ustring());
            JSLock::DropAllLocks dropAllLocks(exec);
            if (deleteProperty(ctx, thisRef, propertyNameRef.get(), toRef(exec->exceptionSlot())))
                return true;
        }
        
        if (OpaqueJSClassStaticValuesTable* staticValues = jsClass->staticValues(exec)) {
            if (StaticValueEntry* entry = staticValues->get(propertyName.ustring().rep())) {
                if (entry->attributes & kJSPropertyAttributeDontDelete)
                    return false;
                return true;
            }
        }
        
        if (OpaqueJSClassStaticFunctionsTable* staticFunctions = jsClass->staticFunctions(exec)) {
            if (StaticFunctionEntry* entry = staticFunctions->get(propertyName.ustring().rep())) {
                if (entry->attributes & kJSPropertyAttributeDontDelete)
                    return false;
                return true;
            }
        }
    }
    
    return Base::deleteProperty(exec, propertyName);
}

template <class Base>
bool JSCallbackObject<Base>::deleteProperty(ExecState* exec, unsigned propertyName)
{
    return deleteProperty(exec, Identifier::from(exec, propertyName));
}

template <class Base>
ConstructType JSCallbackObject<Base>::getConstructData(ConstructData& constructData)
{
    for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass) {
        if (jsClass->callAsConstructor) {
            constructData.native.function = construct;
            return ConstructTypeHost;
        }
    }
    return ConstructTypeNone;
}

template <class Base>
JSObject* JSCallbackObject<Base>::construct(ExecState* exec, JSObject* constructor, const ArgList& args)
{
    JSContextRef execRef = toRef(exec);
    JSObjectRef constructorRef = toRef(constructor);
    
    for (JSClassRef jsClass = static_cast<JSCallbackObject<Base>*>(constructor)->classRef(); jsClass; jsClass = jsClass->parentClass) {
        if (JSObjectCallAsConstructorCallback callAsConstructor = jsClass->callAsConstructor) {
            int argumentCount = static_cast<int>(args.size());
            Vector<JSValueRef, 16> arguments(argumentCount);
            for (int i = 0; i < argumentCount; i++)
                arguments[i] = toRef(args.at(exec, i));
            JSLock::DropAllLocks dropAllLocks(exec);
            return toJS(callAsConstructor(execRef, constructorRef, argumentCount, arguments.data(), toRef(exec->exceptionSlot())));
        }
    }
    
    ASSERT_NOT_REACHED(); // getConstructData should prevent us from reaching here
    return 0;
}

template <class Base>
bool JSCallbackObject<Base>::hasInstance(ExecState* exec, JSValuePtr value, JSValuePtr)
{
    JSContextRef execRef = toRef(exec);
    JSObjectRef thisRef = toRef(this);
    
    for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass) {
        if (JSObjectHasInstanceCallback hasInstance = jsClass->hasInstance) {
            JSLock::DropAllLocks dropAllLocks(exec);
            return hasInstance(execRef, thisRef, toRef(value), toRef(exec->exceptionSlot()));
        }
    }
    return false;
}

template <class Base>
CallType JSCallbackObject<Base>::getCallData(CallData& callData)
{
    for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass) {
        if (jsClass->callAsFunction) {
            callData.native.function = call;
            return CallTypeHost;
        }
    }
    return CallTypeNone;
}

template <class Base>
JSValuePtr JSCallbackObject<Base>::call(ExecState* exec, JSObject* functionObject, JSValuePtr thisValue, const ArgList& args)
{
    JSContextRef execRef = toRef(exec);
    JSObjectRef functionRef = toRef(functionObject);
    JSObjectRef thisObjRef = toRef(thisValue->toThisObject(exec));
    
    for (JSClassRef jsClass = static_cast<JSCallbackObject<Base>*>(functionObject)->classRef(); jsClass; jsClass = jsClass->parentClass) {
        if (JSObjectCallAsFunctionCallback callAsFunction = jsClass->callAsFunction) {
            int argumentCount = static_cast<int>(args.size());
            Vector<JSValueRef, 16> arguments(argumentCount);
            for (int i = 0; i < argumentCount; i++)
                arguments[i] = toRef(args.at(exec, i));
            JSLock::DropAllLocks dropAllLocks(exec);
            return toJS(callAsFunction(execRef, functionRef, thisObjRef, argumentCount, arguments.data(), toRef(exec->exceptionSlot())));
        }
    }
    
    ASSERT_NOT_REACHED(); // getCallData should prevent us from reaching here
    return noValue();
}

template <class Base>
void JSCallbackObject<Base>::getPropertyNames(ExecState* exec, PropertyNameArray& propertyNames)
{
    JSContextRef execRef = toRef(exec);
    JSObjectRef thisRef = toRef(this);
    
    for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass) {
        if (JSObjectGetPropertyNamesCallback getPropertyNames = jsClass->getPropertyNames) {
            JSLock::DropAllLocks dropAllLocks(exec);
            getPropertyNames(execRef, thisRef, toRef(&propertyNames));
        }
        
        if (OpaqueJSClassStaticValuesTable* staticValues = jsClass->staticValues(exec)) {
            typedef OpaqueJSClassStaticValuesTable::const_iterator iterator;
            iterator end = staticValues->end();
            for (iterator it = staticValues->begin(); it != end; ++it) {
                UString::Rep* name = it->first.get();
                StaticValueEntry* entry = it->second;
                if (entry->getProperty && !(entry->attributes & kJSPropertyAttributeDontEnum))
                    propertyNames.add(Identifier(exec, name));
            }
        }
        
        if (OpaqueJSClassStaticFunctionsTable* staticFunctions = jsClass->staticFunctions(exec)) {
            typedef OpaqueJSClassStaticFunctionsTable::const_iterator iterator;
            iterator end = staticFunctions->end();
            for (iterator it = staticFunctions->begin(); it != end; ++it) {
                UString::Rep* name = it->first.get();
                StaticFunctionEntry* entry = it->second;
                if (!(entry->attributes & kJSPropertyAttributeDontEnum))
                    propertyNames.add(Identifier(exec, name));
            }
        }
    }
    
    Base::getPropertyNames(exec, propertyNames);
}

template <class Base>
double JSCallbackObject<Base>::toNumber(ExecState* exec) const
{
    // We need this check to guard against the case where this object is rhs of
    // a binary expression where lhs threw an exception in its conversion to
    // primitive
    if (exec->hadException())
        return NaN;
    JSContextRef ctx = toRef(exec);
    JSObjectRef thisRef = toRef(this);
    
    for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass)
        if (JSObjectConvertToTypeCallback convertToType = jsClass->convertToType) {
            JSLock::DropAllLocks dropAllLocks(exec);
            if (JSValueRef value = convertToType(ctx, thisRef, kJSTypeNumber, toRef(exec->exceptionSlot())))
                return toJS(value)->getNumber();
        }
            
    return Base::toNumber(exec);
}

template <class Base>
UString JSCallbackObject<Base>::toString(ExecState* exec) const
{
    JSContextRef ctx = toRef(exec);
    JSObjectRef thisRef = toRef(this);
    
    for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass)
        if (JSObjectConvertToTypeCallback convertToType = jsClass->convertToType) {
            JSValueRef value;
            {
                JSLock::DropAllLocks dropAllLocks(exec);
                value = convertToType(ctx, thisRef, kJSTypeString, toRef(exec->exceptionSlot()));
            }
            if (value)
                return toJS(value)->getString();
        }
            
    return Base::toString(exec);
}

template <class Base>
void JSCallbackObject<Base>::setPrivate(void* data)
{
    m_callbackObjectData->privateData = data;
}

template <class Base>
void* JSCallbackObject<Base>::getPrivate()
{
    return m_callbackObjectData->privateData;
}

template <class Base>
bool JSCallbackObject<Base>::inherits(JSClassRef c) const
{
    for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass)
        if (jsClass == c)
            return true;
    
    return false;
}

template <class Base>
JSValuePtr JSCallbackObject<Base>::staticValueGetter(ExecState* exec, const Identifier& propertyName, const PropertySlot& slot)
{
    JSCallbackObject* thisObj = asCallbackObject(slot.slotBase());
    
    JSObjectRef thisRef = toRef(thisObj);
    RefPtr<OpaqueJSString> propertyNameRef;
    
    for (JSClassRef jsClass = thisObj->classRef(); jsClass; jsClass = jsClass->parentClass)
        if (OpaqueJSClassStaticValuesTable* staticValues = jsClass->staticValues(exec))
            if (StaticValueEntry* entry = staticValues->get(propertyName.ustring().rep()))
                if (JSObjectGetPropertyCallback getProperty = entry->getProperty) {
                    if (!propertyNameRef)
                        propertyNameRef = OpaqueJSString::create(propertyName.ustring());
                    JSLock::DropAllLocks dropAllLocks(exec);
                    if (JSValueRef value = getProperty(toRef(exec), thisRef, propertyNameRef.get(), toRef(exec->exceptionSlot())))
                        return toJS(value);
                }
                    
    return throwError(exec, ReferenceError, "Static value property defined with NULL getProperty callback.");
}

template <class Base>
JSValuePtr JSCallbackObject<Base>::staticFunctionGetter(ExecState* exec, const Identifier& propertyName, const PropertySlot& slot)
{
    JSCallbackObject* thisObj = asCallbackObject(slot.slotBase());
    
    // Check for cached or override property.
    PropertySlot slot2(thisObj);
    if (thisObj->Base::getOwnPropertySlot(exec, propertyName, slot2))
        return slot2.getValue(exec, propertyName);
    
    for (JSClassRef jsClass = thisObj->classRef(); jsClass; jsClass = jsClass->parentClass) {
        if (OpaqueJSClassStaticFunctionsTable* staticFunctions = jsClass->staticFunctions(exec)) {
            if (StaticFunctionEntry* entry = staticFunctions->get(propertyName.ustring().rep())) {
                if (JSObjectCallAsFunctionCallback callAsFunction = entry->callAsFunction) {
                    JSObject* o = new (exec) JSCallbackFunction(exec, callAsFunction, propertyName);
                    thisObj->putDirect(propertyName, o, entry->attributes);
                    return o;
                }
            }
        }
    }
    
    return throwError(exec, ReferenceError, "Static function property defined with NULL callAsFunction callback.");
}

template <class Base>
JSValuePtr JSCallbackObject<Base>::callbackGetter(ExecState* exec, const Identifier& propertyName, const PropertySlot& slot)
{
    JSCallbackObject* thisObj = asCallbackObject(slot.slotBase());
    
    JSObjectRef thisRef = toRef(thisObj);
    RefPtr<OpaqueJSString> propertyNameRef;
    
    for (JSClassRef jsClass = thisObj->classRef(); jsClass; jsClass = jsClass->parentClass)
        if (JSObjectGetPropertyCallback getProperty = jsClass->getProperty) {
            if (!propertyNameRef)
                propertyNameRef = OpaqueJSString::create(propertyName.ustring());
            JSLock::DropAllLocks dropAllLocks(exec);
            if (JSValueRef value = getProperty(toRef(exec), thisRef, propertyNameRef.get(), toRef(exec->exceptionSlot())))
                return toJS(value);
        }
            
    return throwError(exec, ReferenceError, "hasProperty callback returned true for a property that doesn't exist.");
}

} // namespace JSC