mirror of
https://github.com/RGBCube/serenity
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85 lines
3.1 KiB
C++
85 lines
3.1 KiB
C++
/*
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* Copyright (c) 2020, Linus Groh <mail@linusgroh.de>
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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/ArrayBuffer.h>
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#include <LibJS/Runtime/ArrayBufferConstructor.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/TypedArray.h>
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namespace JS {
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ArrayBufferConstructor::ArrayBufferConstructor(GlobalObject& global_object)
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: NativeFunction(vm().names.ArrayBuffer, *global_object.function_prototype())
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{
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}
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void ArrayBufferConstructor::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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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_property(vm.names.prototype, global_object.array_buffer_prototype(), 0);
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define_property(vm.names.length, Value(1), Attribute::Configurable);
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define_native_function(vm.names.isView, is_view, 1, attr);
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}
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ArrayBufferConstructor::~ArrayBufferConstructor()
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{
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}
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Value ArrayBufferConstructor::call()
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{
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auto& vm = this->vm();
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vm.throw_exception<TypeError>(global_object(), ErrorType::ConstructorWithoutNew, vm.names.ArrayBuffer);
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return {};
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}
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Value ArrayBufferConstructor::construct(Function&)
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{
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auto& vm = this->vm();
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auto byte_length = vm.argument(0).to_index(global_object());
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if (vm.exception()) {
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// Re-throw more specific RangeError
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vm.clear_exception();
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vm.throw_exception<RangeError>(global_object(), ErrorType::InvalidLength, "array buffer");
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return {};
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}
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return ArrayBuffer::create(global_object(), byte_length);
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}
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JS_DEFINE_NATIVE_FUNCTION(ArrayBufferConstructor::is_view)
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{
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auto arg = vm.argument(0);
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if (!arg.is_object())
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return Value(false);
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if (arg.as_object().is_typed_array())
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return Value(true);
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// FIXME: Check for DataView as well
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return Value(false);
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}
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}
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