diff options
Diffstat (limited to 'Source/JavaScriptCore/runtime/JSArrayIterator.cpp')
-rw-r--r-- | Source/JavaScriptCore/runtime/JSArrayIterator.cpp | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/Source/JavaScriptCore/runtime/JSArrayIterator.cpp b/Source/JavaScriptCore/runtime/JSArrayIterator.cpp deleted file mode 100644 index d506c4ebd..000000000 --- a/Source/JavaScriptCore/runtime/JSArrayIterator.cpp +++ /dev/null @@ -1,169 +0,0 @@ -/* - * Copyright (C) 2013 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 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 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 "JSArrayIterator.h" - -#include "JSCJSValueInlines.h" -#include "JSCellInlines.h" -#include "SlotVisitorInlines.h" - -namespace JSC { - -const ClassInfo JSArrayIterator::s_info = { "ArrayIterator", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(JSArrayIterator) }; - -static EncodedJSValue JSC_HOST_CALL arrayIteratorNextKey(ExecState*); -static EncodedJSValue JSC_HOST_CALL arrayIteratorNextValue(ExecState*); -static EncodedJSValue JSC_HOST_CALL arrayIteratorNextGeneric(ExecState*); - -void JSArrayIterator::finishCreation(VM& vm, JSGlobalObject* globalObject, ArrayIterationKind kind, JSObject* iteratedObject) -{ - Base::finishCreation(vm); - ASSERT(inherits(info())); - m_iterationKind = kind; - m_iteratedObject.set(vm, this, iteratedObject); - switch (kind) { - case ArrayIterateKey: - JSC_NATIVE_INTRINSIC_FUNCTION(vm.propertyNames->iteratorNextPrivateName, arrayIteratorNextKey, DontEnum, 0, ArrayIteratorNextKeyIntrinsic); - break; - case ArrayIterateValue: - JSC_NATIVE_INTRINSIC_FUNCTION(vm.propertyNames->iteratorNextPrivateName, arrayIteratorNextValue, DontEnum, 0, ArrayIteratorNextValueIntrinsic); - break; - default: - JSC_NATIVE_INTRINSIC_FUNCTION(vm.propertyNames->iteratorNextPrivateName, arrayIteratorNextGeneric, DontEnum, 0, ArrayIteratorNextGenericIntrinsic); - break; - } - -} - - -void JSArrayIterator::visitChildren(JSCell* cell, SlotVisitor& visitor) -{ - JSArrayIterator* thisObject = jsCast<JSArrayIterator*>(cell); - ASSERT_GC_OBJECT_INHERITS(thisObject, info()); - COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag); - ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren()); - - Base::visitChildren(thisObject, visitor); - visitor.append(&thisObject->m_iteratedObject); - -} - -static EncodedJSValue createIteratorResult(CallFrame* callFrame, ArrayIterationKind kind, size_t index, JSValue result, bool done) -{ - if (done) - return JSValue::encode(callFrame->vm().iterationTerminator.get()); - - switch (kind & ~ArrayIterateSparseTag) { - case ArrayIterateKey: - return JSValue::encode(jsNumber(index)); - - case ArrayIterateValue: - return JSValue::encode(result); - - case ArrayIterateKeyValue: { - MarkedArgumentBuffer args; - args.append(jsNumber(index)); - args.append(result); - JSGlobalObject* globalObject = callFrame->callee()->globalObject(); - return JSValue::encode(constructArray(callFrame, 0, globalObject, args)); - - } - default: - RELEASE_ASSERT_NOT_REACHED(); - } - return JSValue::encode(JSValue()); -} - -static inline EncodedJSValue JSC_HOST_CALL arrayIteratorNext(CallFrame* callFrame) -{ - JSArrayIterator* iterator = jsDynamicCast<JSArrayIterator*>(callFrame->thisValue()); - if (!iterator) { - ASSERT_NOT_REACHED(); - return JSValue::encode(throwTypeError(callFrame, ASCIILiteral("Cannot call ArrayIterator.next() on a non-ArrayIterator object"))); - } - JSObject* iteratedObject = iterator->iteratedObject(); - size_t index = iterator->nextIndex(); - ArrayIterationKind kind = iterator->iterationKind(); - JSValue jsLength = JSValue(iteratedObject).get(callFrame, callFrame->propertyNames().length); - if (callFrame->hadException()) - return JSValue::encode(jsNull()); - - size_t length = jsLength.toUInt32(callFrame); - if (callFrame->hadException()) - return JSValue::encode(jsNull()); - - if (index >= length) { - iterator->finish(); - return createIteratorResult(callFrame, kind, index, jsUndefined(), true); - } - if (JSValue result = iteratedObject->tryGetIndexQuickly(index)) { - iterator->setNextIndex(index + 1); - return createIteratorResult(callFrame, kind, index, result, false); - } - - JSValue result = jsUndefined(); - PropertySlot slot(iteratedObject); - if (kind > ArrayIterateSparseTag) { - // We assume that the indexed property will be an own property so cache the getOwnProperty - // method locally - auto getOwnPropertySlotByIndex = iteratedObject->methodTable()->getOwnPropertySlotByIndex; - while (index < length) { - if (getOwnPropertySlotByIndex(iteratedObject, callFrame, index, slot)) { - result = slot.getValue(callFrame, index); - break; - } - if (iteratedObject->getPropertySlot(callFrame, index, slot)) { - result = slot.getValue(callFrame, index); - break; - } - index++; - } - } else if (iteratedObject->getPropertySlot(callFrame, index, slot)) - result = slot.getValue(callFrame, index); - - if (index == length) - iterator->finish(); - else - iterator->setNextIndex(index + 1); - return createIteratorResult(callFrame, kind, index, jsUndefined(), index == length); -} - -EncodedJSValue JSC_HOST_CALL arrayIteratorNextKey(CallFrame* callFrame) -{ - return arrayIteratorNext(callFrame); -} - -EncodedJSValue JSC_HOST_CALL arrayIteratorNextValue(CallFrame* callFrame) -{ - return arrayIteratorNext(callFrame); -} - -EncodedJSValue JSC_HOST_CALL arrayIteratorNextGeneric(CallFrame* callFrame) -{ - return arrayIteratorNext(callFrame); -} - -} |