ladybird/Libraries/LibJS/Runtime/ProxyConstructor.cpp
Andreas Kling 1ff9d33131 LibJS: Make Function::call() not require an Interpreter&
This makes a difference inside ScriptFunction::call(), which will now
instantiate a temporary Interpreter if one is not attached to the VM.
2020-09-27 20:26:58 +02:00

79 lines
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C++

/*
* Copyright (c) 2020, Matthew Olsson <matthewcolsson@gmail.com>
* 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER 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 <LibJS/Interpreter.h>
#include <LibJS/Runtime/Array.h>
#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/ProxyConstructor.h>
#include <LibJS/Runtime/ProxyObject.h>
namespace JS {
ProxyConstructor::ProxyConstructor(GlobalObject& global_object)
: NativeFunction("Proxy", *global_object.function_prototype())
{
}
void ProxyConstructor::initialize(GlobalObject& global_object)
{
NativeFunction::initialize(global_object);
define_property("prototype", global_object.proxy_prototype(), 0);
define_property("length", Value(2), Attribute::Configurable);
}
ProxyConstructor::~ProxyConstructor()
{
}
Value ProxyConstructor::call()
{
vm().throw_exception<TypeError>(global_object(), ErrorType::ProxyCallWithNew);
return {};
}
Value ProxyConstructor::construct(Interpreter& interpreter, Function&)
{
if (interpreter.argument_count() < 2) {
interpreter.vm().throw_exception<TypeError>(global_object(), ErrorType::ProxyTwoArguments);
return {};
}
auto target = interpreter.argument(0);
auto handler = interpreter.argument(1);
if (!target.is_object()) {
interpreter.vm().throw_exception<TypeError>(global_object(), ErrorType::ProxyConstructorBadType, "target", target.to_string_without_side_effects().characters());
return {};
}
if (!handler.is_object()) {
interpreter.vm().throw_exception<TypeError>(global_object(), ErrorType::ProxyConstructorBadType, "handler", handler.to_string_without_side_effects().characters());
return {};
}
return ProxyObject::create(global_object(), target.as_object(), handler.as_object());
}
}