webkitgtk-2.4.11webkitgtk-2.4.11

1 files changed, 0 insertions, 197 deletions

diff --git a/Source/JavaScriptCore/runtime/JSModuleNamespaceObject.cpp b/Source/JavaScriptCore/runtime/JSModuleNamespaceObject.cpp
deleted file mode 100644
index b53a273df..000000000
--- a/Source/JavaScriptCore/runtime/JSModuleNamespaceObject.cpp
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * Copyright (C) 2015 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 "JSModuleNamespaceObject.h"
-
-#include "Error.h"
-#include "IdentifierInlines.h"
-#include "JSCJSValueInlines.h"
-#include "JSCellInlines.h"
-#include "JSModuleEnvironment.h"
-#include "JSModuleRecord.h"
-#include "JSPropertyNameIterator.h"
-#include "SlotVisitorInlines.h"
-#include "StructureInlines.h"
-
-namespace JSC {
-
-static EncodedJSValue JSC_HOST_CALL moduleNamespaceObjectSymbolIterator(ExecState*);
-
-const ClassInfo JSModuleNamespaceObject::s_info = { "ModuleNamespaceObject", &Base::s_info, nullptr, CREATE_METHOD_TABLE(JSModuleNamespaceObject) };
-
-
-JSModuleNamespaceObject::JSModuleNamespaceObject(VM& vm, Structure* structure)
-    : Base(vm, structure)
-    , m_exports()
-{
-}
-
-void JSModuleNamespaceObject::finishCreation(VM& vm, JSGlobalObject* globalObject, JSModuleRecord* moduleRecord, const IdentifierSet& exports)
-{
-    Base::finishCreation(vm);
-    ASSERT(inherits(info()));
-
-    // http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects
-    // Quoted from the spec:
-    //     A List containing the String values of the exported names exposed as own properties of this object.
-    //     The list is ordered as if an Array of those String values had been sorted using Array.prototype.sort using SortCompare as comparefn.
-    //
-    // Sort the exported names by the code point order.
-    Vector<UniquedStringImpl*> temporaryVector(exports.size(), nullptr);
-    std::transform(exports.begin(), exports.end(), temporaryVector.begin(), [](const RefPtr<WTF::UniquedStringImpl>& ref) {
-        return ref.get();
-    });
-    std::sort(temporaryVector.begin(), temporaryVector.end(), [] (UniquedStringImpl* lhs, UniquedStringImpl* rhs) {
-        return codePointCompare(lhs, rhs) < 0;
-    });
-    for (auto* identifier : temporaryVector)
-        m_exports.add(identifier);
-
-    m_moduleRecord.set(vm, this, moduleRecord);
-    JSC_NATIVE_FUNCTION(vm.propertyNames->iteratorSymbol, moduleNamespaceObjectSymbolIterator, DontEnum, 0);
-    putDirect(vm, vm.propertyNames->toStringTagSymbol, jsString(&vm, "Module"), DontEnum | ReadOnly);
-
-    // http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-getprototypeof
-    // http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-setprototypeof-v
-    // http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-isextensible
-    // http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-preventextensions
-    preventExtensions(vm);
-}
-
-void JSModuleNamespaceObject::destroy(JSCell* cell)
-{
-    JSModuleNamespaceObject* thisObject = jsCast<JSModuleNamespaceObject*>(cell);
-    thisObject->JSModuleNamespaceObject::~JSModuleNamespaceObject();
-}
-
-void JSModuleNamespaceObject::visitChildren(JSCell* cell, SlotVisitor& visitor)
-{
-    JSModuleNamespaceObject* thisObject = jsCast<JSModuleNamespaceObject*>(cell);
-    ASSERT_GC_OBJECT_INHERITS(thisObject, info());
-    Base::visitChildren(thisObject, visitor);
-    visitor.append(&thisObject->m_moduleRecord);
-}
-
-static EncodedJSValue callbackGetter(ExecState* exec, EncodedJSValue thisValue, PropertyName propertyName)
-{
-    JSModuleNamespaceObject* thisObject = jsCast<JSModuleNamespaceObject*>(JSValue::decode(thisValue));
-    JSModuleRecord* moduleRecord = thisObject->moduleRecord();
-
-    JSModuleRecord::Resolution resolution = moduleRecord->resolveExport(exec, Identifier::fromUid(exec, propertyName.uid()));
-    ASSERT(resolution.type != JSModuleRecord::Resolution::Type::NotFound && resolution.type != JSModuleRecord::Resolution::Type::Ambiguous);
-
-    JSModuleRecord* targetModule = resolution.moduleRecord;
-    JSModuleEnvironment* targetEnvironment = targetModule->moduleEnvironment();
-
-    PropertySlot trampolineSlot(targetEnvironment, PropertySlot::InternalMethodType::Get);
-    if (!targetEnvironment->methodTable(exec->vm())->getOwnPropertySlot(targetEnvironment, exec, resolution.localName, trampolineSlot))
-        return JSValue::encode(jsUndefined());
-
-    JSValue value = trampolineSlot.getValue(exec, propertyName);
-    if (exec->hadException())
-        return JSValue::encode(jsUndefined());
-
-    // If the value is filled with TDZ value, throw a reference error.
-    if (!value)
-        return throwVMError(exec, createTDZError(exec));
-    return JSValue::encode(value);
-}
-
-bool JSModuleNamespaceObject::getOwnPropertySlot(JSObject* cell, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
-{
-    // http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-getownproperty-p
-
-    JSModuleNamespaceObject* thisObject = jsCast<JSModuleNamespaceObject*>(cell);
-
-    // step 1.
-    // If the property name is a symbol, we don't look into the imported bindings.
-    // It may return the descriptor with writable: true, but namespace objects does not allow it in [[Set]] / [[DefineOwnProperty]] side.
-    if (propertyName.isSymbol())
-        return JSObject::getOwnPropertySlot(thisObject, exec, propertyName, slot);
-
-    if (!thisObject->m_exports.contains(propertyName.uid()))
-        return false;
-
-    // https://esdiscuss.org/topic/march-24-meeting-notes
-    // http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-getownproperty-p
-    // section 9.4.6.5, step 6.
-    // This property will be seen as writable: true, enumerable:true, configurable: false.
-    // But this does not mean that this property is writable by users.
-    //
-    // In JSC, getOwnPropertySlot is not designed to throw any errors. But looking up the value from the module
-    // environment may throw error if the loaded variable is the TDZ value. To workaround, we set the custom
-    // getter function. When it is called, it looks up the variable and throws an error if the variable is not
-    // initialized.
-    slot.setCustom(thisObject, DontDelete, callbackGetter);
-    return true;
-}
-
-void JSModuleNamespaceObject::put(JSCell*, ExecState* exec, PropertyName, JSValue, PutPropertySlot& slot)
-{
-    // http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-set-p-v-receiver
-    if (slot.isStrictMode())
-        throwTypeError(exec, ASCIILiteral(StrictModeReadonlyPropertyWriteError));
-}
-
-void JSModuleNamespaceObject::putByIndex(JSCell*, ExecState* exec, unsigned, JSValue, bool shouldThrow)
-{
-    if (shouldThrow)
-        throwTypeError(exec, ASCIILiteral(StrictModeReadonlyPropertyWriteError));
-}
-
-bool JSModuleNamespaceObject::deleteProperty(JSCell* cell, ExecState*, PropertyName propertyName)
-{
-    // http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-delete-p
-    JSModuleNamespaceObject* thisObject = jsCast<JSModuleNamespaceObject*>(cell);
-    return !thisObject->m_exports.contains(propertyName.uid());
-}
-
-void JSModuleNamespaceObject::getOwnPropertyNames(JSObject* cell, ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
-{
-    // http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-ownpropertykeys
-    JSModuleNamespaceObject* thisObject = jsCast<JSModuleNamespaceObject*>(cell);
-    for (const auto& name : thisObject->m_exports)
-        propertyNames.add(name.get());
-    return JSObject::getOwnPropertyNames(thisObject, exec, propertyNames, mode);
-}
-
-bool JSModuleNamespaceObject::defineOwnProperty(JSObject*, ExecState* exec, PropertyName, const PropertyDescriptor&, bool shouldThrow)
-{
-    // http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-defineownproperty-p-desc
-    if (shouldThrow)
-        throwTypeError(exec, ASCIILiteral("Attempting to define property on object that is not extensible."));
-    return false;
-}
-
-EncodedJSValue JSC_HOST_CALL moduleNamespaceObjectSymbolIterator(ExecState* exec)
-{
-    JSValue thisValue = exec->thisValue();
-    if (!thisValue.isObject())
-        return JSValue::encode(throwTypeError(exec, ASCIILiteral("|this| should be an object")));
-    return JSValue::encode(JSPropertyNameIterator::create(exec, exec->lexicalGlobalObject()->propertyNameIteratorStructure(), asObject(thisValue)));
-}
-
-} // namespace JSC