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NativeFunctionObject.cpp
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90 lines (77 loc) · 4.05 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
*/
#include "Escargot.h"
#include "NativeFunctionObject.h"
#include "FunctionObjectInlines.h"
namespace Escargot {
NativeFunctionObject::NativeFunctionObject(ExecutionState& state, const NativeFunctionInfo& info)
: FunctionObject(state, state.context()->globalObject()->functionPrototype(), info.m_isConstructor ? (ESCARGOT_OBJECT_BUILTIN_PROPERTY_NUMBER + 3) : (ESCARGOT_OBJECT_BUILTIN_PROPERTY_NUMBER + 2))
{
m_codeBlock = new NativeCodeBlock(state.context(), info);
initStructureAndValues(state, info.m_isConstructor, false);
}
NativeFunctionObject::NativeFunctionObject(ExecutionState& state, const NativeFunctionInfo& info, ForGlobalBuiltin)
: FunctionObject(state, state.context()->globalObject()->objectPrototype(), ESCARGOT_OBJECT_BUILTIN_PROPERTY_NUMBER + 2)
{
m_codeBlock = new NativeCodeBlock(state.context(), info);
initStructureAndValues(state, info.m_isConstructor, false);
ASSERT(!NativeFunctionObject::isConstructor());
}
NativeFunctionObject::NativeFunctionObject(ExecutionState& state, const NativeFunctionInfo& info, ForBuiltinConstructor)
: FunctionObject(state, state.context()->globalObject()->functionPrototype(), info.m_isConstructor ? (ESCARGOT_OBJECT_BUILTIN_PROPERTY_NUMBER + 3) : (ESCARGOT_OBJECT_BUILTIN_PROPERTY_NUMBER + 2))
{
m_codeBlock = new NativeCodeBlock(state.context(), info);
initStructureAndValues(state, info.m_isConstructor, false);
if (info.m_isConstructor) {
m_structure = state.context()->defaultStructureForBuiltinFunctionObject();
}
}
NativeFunctionObject::NativeFunctionObject(ExecutionState& state, const NativeFunctionInfo& info, ForBuiltinProxyConstructor)
: FunctionObject(state, state.context()->globalObject()->functionPrototype(), ESCARGOT_OBJECT_BUILTIN_PROPERTY_NUMBER + 2)
{
m_codeBlock = new NativeCodeBlock(state.context(), info);
// The Proxy constructor does not have a prototype property
m_structure = state.context()->defaultStructureForNotConstructorFunctionObject();
m_values[ESCARGOT_OBJECT_BUILTIN_PROPERTY_NUMBER + 0] = (Value(m_codeBlock->functionLength()));
m_values[ESCARGOT_OBJECT_BUILTIN_PROPERTY_NUMBER + 1] = (Value(m_codeBlock->functionName().string()));
ASSERT(NativeFunctionObject::isConstructor());
}
NativeFunctionObject::NativeFunctionObject(Context* context, ObjectStructure* structure, ObjectPropertyValueVector&& values, const NativeFunctionInfo& info)
: FunctionObject(structure, std::move(values), context->globalObject()->functionPrototype())
{
m_codeBlock = new NativeCodeBlock(context, info);
}
bool NativeFunctionObject::isConstructor() const
{
return nativeCodeBlock()->isNativeConstructor();
}
Value NativeFunctionObject::call(ExecutionState& state, const Value& thisValue, const size_t argc, Value* argv)
{
ASSERT(codeBlock()->isNativeCodeBlock());
return processNativeFunctionCall<false>(state, thisValue, argc, argv, nullptr);
}
Value NativeFunctionObject::construct(ExecutionState& state, const size_t argc, Value* argv, Object* newTarget)
{
// Assert: Type(newTarget) is Object.
ASSERT(newTarget->isObject());
ASSERT(newTarget->isConstructor());
ASSERT(codeBlock()->isNativeCodeBlock());
return processNativeFunctionCall<true>(state, Value(), argc, argv, newTarget);
}
} // namespace Escargot