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5cb45e4feb
- Default values should depend on arguments being undefined, not being missing - "(?:)" for empty pattern happens in RegExp.prototype.source, not the constructor
74 lines
2.6 KiB
C++
74 lines
2.6 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/Runtime/Error.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/RegExpConstructor.h>
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#include <LibJS/Runtime/RegExpObject.h>
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namespace JS {
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RegExpConstructor::RegExpConstructor(GlobalObject& global_object)
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: NativeFunction(vm().names.RegExp, *global_object.function_prototype())
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{
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}
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void RegExpConstructor::initialize(GlobalObject& global_object)
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{
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auto& vm = this->vm();
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NativeFunction::initialize(global_object);
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define_property(vm.names.prototype, global_object.regexp_prototype(), 0);
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define_property(vm.names.length, Value(2), Attribute::Configurable);
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}
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RegExpConstructor::~RegExpConstructor()
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{
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}
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Value RegExpConstructor::call()
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{
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return construct(*this);
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}
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Value RegExpConstructor::construct(Function&)
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{
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auto& vm = this->vm();
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String pattern = "";
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String flags = "";
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if (!vm.argument(0).is_undefined()) {
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pattern = vm.argument(0).to_string(global_object());
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if (vm.exception())
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return {};
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}
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if (!vm.argument(1).is_undefined()) {
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flags = vm.argument(1).to_string(global_object());
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if (vm.exception())
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return {};
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}
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return RegExpObject::create(global_object(), pattern, flags);
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}
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}
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