39ad42defd
Includes all traps except the following: [[Call]], [[Construct]], [[OwnPropertyKeys]]. An important implication of this commit is that any call to any virtual Object method has the potential to throw an exception. These methods were not checked in this commit -- a future commit will have to protect these various method calls throughout the codebase.
68 lines
2.9 KiB
C++
68 lines
2.9 KiB
C++
/*
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* Copyright (c) 2020, Matthew Olsson <matthewcolsson@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibJS/Interpreter.h>
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#include <LibJS/Runtime/Array.h>
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#include <LibJS/Runtime/Error.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/ProxyConstructor.h>
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#include <LibJS/Runtime/ProxyObject.h>
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namespace JS {
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ProxyConstructor::ProxyConstructor()
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: NativeFunction("Proxy", *interpreter().global_object().function_prototype())
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{
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define_property("prototype", interpreter().global_object().proxy_prototype(), 0);
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define_property("length", Value(2), Attribute::Configurable);
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}
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ProxyConstructor::~ProxyConstructor()
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{
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}
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Value ProxyConstructor::call(Interpreter& interpreter)
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{
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return interpreter.throw_exception<TypeError>("Proxy must be called with the \"new\" operator");
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}
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Value ProxyConstructor::construct(Interpreter& interpreter)
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{
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if (interpreter.argument_count() < 2)
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return interpreter.throw_exception<TypeError>("Proxy requires at least two arguments");
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auto target = interpreter.argument(0);
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auto handler = interpreter.argument(1);
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if (!target.is_object())
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return interpreter.throw_exception<TypeError>(String::format("Expected target argument of Proxy constructor to be object, got %s", target.to_string_without_side_effects().characters()));
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if (!handler.is_object())
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return interpreter.throw_exception<TypeError>(String::format("Expected handler argument of Proxy constructor to be object, got %s", handler.to_string_without_side_effects().characters()));
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return ProxyObject::create(interpreter.global_object(), target.as_object(), handler.as_object());
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}
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}
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