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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* 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 <AK/Function.h>
#include <LibJS/Interpreter.h>
#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Uint8ClampedArray.h>
namespace JS {
Uint8ClampedArray* Uint8ClampedArray::create(GlobalObject& global_object, u32 length)
{
auto& interpreter = global_object.interpreter();
return interpreter.heap().allocate<Uint8ClampedArray>(global_object, length, *global_object.array_prototype());
}
Uint8ClampedArray::Uint8ClampedArray(u32 length, Object& prototype)
: Object(prototype)
, m_length(length)
{
define_native_property("length", length_getter, nullptr);
m_data = new u8[m_length];
}
Uint8ClampedArray::~Uint8ClampedArray()
{
ASSERT(m_data);
delete[] m_data;
m_data = nullptr;
}
JS_DEFINE_NATIVE_GETTER(Uint8ClampedArray::length_getter)
{
auto* this_object = interpreter.this_value(global_object).to_object(interpreter, global_object);
if (!this_object)
return {};
if (StringView(this_object->class_name()) != "Uint8ClampedArray") {
interpreter.vm().throw_exception<TypeError>(global_object, ErrorType::NotA, "Uint8ClampedArray");
return {};
}
return Value(static_cast<const Uint8ClampedArray*>(this_object)->length());
}
bool Uint8ClampedArray::put_by_index(u32 property_index, Value value)
{
// FIXME: Use attributes
ASSERT(property_index < m_length);
auto number = value.to_i32(interpreter());
if (vm().exception())
return {};
m_data[property_index] = clamp(number, 0, 255);
return true;
}
Value Uint8ClampedArray::get_by_index(u32 property_index) const
{
ASSERT(property_index < m_length);
return Value((i32)m_data[property_index]);
}
}
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