c5bd382524
There's currently a fallback at the call site where the Realm is needed (due to a slightly incorrect implementation of [[Call]] / [[Construct]]) so this is better than crashing (in LibWeb, currently).
68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Interpreter.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/NativeFunction.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS {
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NativeFunction* NativeFunction::create(GlobalObject& global_object, const FlyString& name, Function<Value(VM&, GlobalObject&)> function)
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{
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return global_object.heap().allocate<NativeFunction>(global_object, name, move(function), *global_object.function_prototype());
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}
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// FIXME: m_realm is supposed to be the realm argument of CreateBuiltinFunction, or the current
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// Realm Record. The former is not something that's commonly used or we support, the
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// latter is impossible as no ExecutionContext exists when most NativeFunctions are created...
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NativeFunction::NativeFunction(Object& prototype)
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: FunctionObject(prototype)
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, m_realm(vm().interpreter_if_exists() ? &vm().interpreter().realm() : nullptr)
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{
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}
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NativeFunction::NativeFunction(FlyString name, Function<Value(VM&, GlobalObject&)> native_function, Object& prototype)
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: FunctionObject(prototype)
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, m_name(move(name))
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, m_native_function(move(native_function))
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, m_realm(vm().interpreter_if_exists() ? &vm().interpreter().realm() : nullptr)
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{
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}
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NativeFunction::NativeFunction(FlyString name, Object& prototype)
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: FunctionObject(prototype)
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, m_name(move(name))
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, m_realm(vm().interpreter_if_exists() ? &vm().interpreter().realm() : nullptr)
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{
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}
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NativeFunction::~NativeFunction()
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{
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}
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Value NativeFunction::call()
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{
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return m_native_function(vm(), global_object());
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}
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Value NativeFunction::construct(FunctionObject&)
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{
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return {};
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}
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FunctionEnvironment* NativeFunction::create_environment(FunctionObject&)
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{
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return nullptr;
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}
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bool NativeFunction::is_strict_mode() const
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{
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return vm().in_strict_mode();
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}
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}
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