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118 lines (98 loc) · 4.73 KB
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/*
* Copyright (c) 2019-present Samsung Electronics Co., Ltd
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#ifndef __EscargotModuleNamespaceObject__
#define __EscargotModuleNamespaceObject__
#include "runtime/Object.h"
namespace Escargot {
class Script;
// http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects
class ModuleNamespaceObject : public Object {
public:
ModuleNamespaceObject(ExecutionState& state, Script* script);
virtual bool isModuleNamespaceObject() const override
{
return true;
}
virtual bool isInlineCacheable() override
{
return false;
}
// http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-getprototypeof
virtual Object* getPrototypeObject(ExecutionState&) override
{
return nullptr;
}
// http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-getprototypeof
virtual Value getPrototype(ExecutionState&) override
{
return Value(Value::Null);
}
// https://www.ecma-international.org/ecma-262/#sec-module-namespace-exotic-objects-setprototypeof-v
virtual bool setPrototype(ExecutionState&, const Value& v) override
{
// Return ? SetImmutablePrototype(O, V).
// SetImmutablePrototype ( O, V )
// When the SetImmutablePrototype abstract operation is called with arguments O and V, the following steps are taken:
// Assert: Either Type(V) is Object or Type(V) is Null.
// Let current be ? O.[[GetPrototypeOf]]().
// If SameValue(V, current) is true, return true.
// Return false.
if (v.isNull()) {
return true;
}
return false;
}
// http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-isextensible
virtual bool isExtensible(ExecutionState&) override
{
if (!m_isInitialized) {
return true;
}
return false;
}
virtual bool preventExtensions(ExecutionState&) override
{
return true;
}
// http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-getownproperty-p
virtual ObjectGetResult getOwnProperty(ExecutionState& state, const ObjectPropertyName& P) override;
// http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-defineownproperty-p-desc
virtual bool defineOwnProperty(ExecutionState& state, const ObjectPropertyName& P, const ObjectPropertyDescriptor& desc) override;
// http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-hasproperty-p
virtual ObjectHasPropertyResult hasProperty(ExecutionState& state, const ObjectPropertyName& P) override;
// http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-get-p-receiver
virtual ObjectGetResult get(ExecutionState& state, const ObjectPropertyName& P, const Value& receiver) override;
// http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-set-p-v-receiver
virtual bool set(ExecutionState& state, const ObjectPropertyName& P, const Value& v, const Value& receiver) override
{
return false;
}
// https://www.ecma-international.org/ecma-262/#sec-module-namespace-exotic-objects-delete-p
virtual bool deleteOwnProperty(ExecutionState& state, const ObjectPropertyName& P) override;
// http://www.ecma-international.org/ecma-262/6.0/#sec-module-namespace-exotic-objects-ownpropertykeys
virtual void enumeration(ExecutionState& state, bool (*callback)(ExecutionState& state, Object* self, const ObjectPropertyName&, const ObjectStructurePropertyDescriptor& desc, void* data), void* data, bool shouldSkipSymbolKey) override;
// https://www.ecma-international.org/ecma-262/#sec-module-namespace-exotic-objects-ownpropertykeys
virtual OwnPropertyKeyVector ownPropertyKeys(ExecutionState& state) override;
private:
bool m_isInitialized;
Script* m_script;
AtomicStringVector m_exports;
};
} // namespace Escargot
#endif