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7b863330dc
Roughly 7% of test-js runtime was spent creating FlyStrings from string literals. This patch frontloads that work and caches all the commonly used names in LibJS on a CommonPropertyNames struct that hangs off VM.
92 lines
3.2 KiB
C++
92 lines
3.2 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 <AK/String.h>
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#include <LibCrypto/BigInt/SignedBigInteger.h>
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#include <LibJS/Runtime/BigIntConstructor.h>
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#include <LibJS/Runtime/BigIntObject.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/VM.h>
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namespace JS {
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BigIntConstructor::BigIntConstructor(GlobalObject& global_object)
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: NativeFunction(vm().names.BigInt, *global_object.function_prototype())
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{
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}
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void BigIntConstructor::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.bigint_prototype(), 0);
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define_property(vm.names.length, Value(1), Attribute::Configurable);
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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_native_function(vm.names.asIntN, as_int_n, 2, attr);
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define_native_function(vm.names.asUintN, as_uint_n, 2, attr);
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}
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BigIntConstructor::~BigIntConstructor()
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{
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}
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Value BigIntConstructor::call()
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{
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auto primitive = vm().argument(0).to_primitive(Value::PreferredType::Number);
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if (vm().exception())
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return {};
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if (primitive.is_number()) {
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if (!primitive.is_integer()) {
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vm().throw_exception<RangeError>(global_object(), ErrorType::BigIntIntArgument);
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return {};
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}
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return js_bigint(heap(), Crypto::SignedBigInteger { primitive.as_i32() });
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}
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auto* bigint = vm().argument(0).to_bigint(global_object());
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if (vm().exception())
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return {};
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return bigint;
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}
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Value BigIntConstructor::construct(Function&)
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{
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vm().throw_exception<TypeError>(global_object(), ErrorType::NotAConstructor, "BigInt");
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return {};
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}
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JS_DEFINE_NATIVE_FUNCTION(BigIntConstructor::as_int_n)
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{
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TODO();
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}
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JS_DEFINE_NATIVE_FUNCTION(BigIntConstructor::as_uint_n)
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{
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TODO();
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}
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}
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