mirror of
https://github.com/RGBCube/serenity
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6de4f1fcb3
We have multiple array types now, so ArrayInvalidLength has been replaced with a generic InvalidLength. Also fixes a small issue in the Array constructor, it should throw RangeError for invalid lengths, not TypeError.
86 lines
3 KiB
C++
86 lines
3 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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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 <AK/Function.h>
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#include <LibJS/Runtime/Array.h>
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#include <LibJS/Runtime/ArrayPrototype.h>
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#include <LibJS/Runtime/Error.h>
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#include <LibJS/Runtime/GlobalObject.h>
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namespace JS {
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Array* Array::create(GlobalObject& global_object)
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{
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return global_object.heap().allocate<Array>(global_object, *global_object.array_prototype());
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}
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Array::Array(Object& prototype)
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: Object(prototype)
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{
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auto& vm = this->vm();
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define_native_property(vm.names.length, length_getter, length_setter, Attribute::Writable);
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}
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Array::~Array()
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{
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}
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Array* Array::typed_this(VM& vm, GlobalObject& global_object)
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{
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auto* this_object = vm.this_value(global_object).to_object(global_object);
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if (!this_object)
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return {};
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if (!this_object->is_array()) {
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vm.throw_exception<TypeError>(global_object, ErrorType::NotAn, "Array");
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return nullptr;
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}
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return static_cast<Array*>(this_object);
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}
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JS_DEFINE_NATIVE_GETTER(Array::length_getter)
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{
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auto* array = typed_this(vm, global_object);
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if (!array)
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return {};
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return Value(static_cast<i32>(array->indexed_properties().array_like_size()));
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}
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JS_DEFINE_NATIVE_SETTER(Array::length_setter)
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{
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auto* array = typed_this(vm, global_object);
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if (!array)
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return;
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auto length = value.to_number(global_object);
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if (vm.exception())
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return;
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if (length.is_nan() || length.is_infinity() || length.as_double() < 0) {
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vm.throw_exception<RangeError>(global_object, ErrorType::InvalidLength, "array");
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return;
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}
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array->indexed_properties().set_array_like_size(length.as_double());
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}
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}
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