mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 16:32:45 +00:00
ec55490198
There's no point in trying to achieve shape sharing for global objects, so we can simply make the shape unique from the start and avoid making a transition chain.
195 lines
7.6 KiB
C++
195 lines
7.6 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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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/LogStream.h>
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#include <LibJS/Console.h>
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#include <LibJS/Heap/DeferGC.h>
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#include <LibJS/Runtime/ArrayConstructor.h>
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#include <LibJS/Runtime/ArrayIteratorPrototype.h>
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#include <LibJS/Runtime/ArrayPrototype.h>
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#include <LibJS/Runtime/BigIntConstructor.h>
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#include <LibJS/Runtime/BigIntPrototype.h>
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#include <LibJS/Runtime/BooleanConstructor.h>
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#include <LibJS/Runtime/BooleanPrototype.h>
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#include <LibJS/Runtime/ConsoleObject.h>
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#include <LibJS/Runtime/DateConstructor.h>
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#include <LibJS/Runtime/DatePrototype.h>
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#include <LibJS/Runtime/ErrorConstructor.h>
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#include <LibJS/Runtime/ErrorPrototype.h>
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#include <LibJS/Runtime/FunctionConstructor.h>
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#include <LibJS/Runtime/FunctionPrototype.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/IteratorPrototype.h>
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#include <LibJS/Runtime/JSONObject.h>
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#include <LibJS/Runtime/MathObject.h>
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#include <LibJS/Runtime/NativeFunction.h>
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#include <LibJS/Runtime/NumberConstructor.h>
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#include <LibJS/Runtime/NumberPrototype.h>
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#include <LibJS/Runtime/Object.h>
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#include <LibJS/Runtime/ObjectConstructor.h>
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#include <LibJS/Runtime/ObjectPrototype.h>
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#include <LibJS/Runtime/ProxyConstructor.h>
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#include <LibJS/Runtime/ProxyPrototype.h>
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#include <LibJS/Runtime/ReflectObject.h>
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#include <LibJS/Runtime/RegExpConstructor.h>
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#include <LibJS/Runtime/RegExpPrototype.h>
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#include <LibJS/Runtime/Shape.h>
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#include <LibJS/Runtime/StringConstructor.h>
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#include <LibJS/Runtime/StringIteratorPrototype.h>
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#include <LibJS/Runtime/StringPrototype.h>
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#include <LibJS/Runtime/SymbolConstructor.h>
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#include <LibJS/Runtime/SymbolPrototype.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS {
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GlobalObject::GlobalObject()
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: Object(GlobalObjectTag::Tag)
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, m_console(make<Console>(*this))
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{
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}
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void GlobalObject::initialize()
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{
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ensure_shape_is_unique();
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// These are done first since other prototypes depend on their presence.
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m_empty_object_shape = heap().allocate<Shape>(*this, *this);
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m_object_prototype = heap().allocate_without_global_object<ObjectPrototype>(*this);
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m_function_prototype = heap().allocate_without_global_object<FunctionPrototype>(*this);
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static_cast<FunctionPrototype*>(m_function_prototype)->initialize(*this);
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static_cast<ObjectPrototype*>(m_object_prototype)->initialize(*this);
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#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
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if (!m_##snake_name##_prototype) \
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m_##snake_name##_prototype = heap().allocate<PrototypeName>(*this, *this);
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JS_ENUMERATE_BUILTIN_TYPES
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#undef __JS_ENUMERATE
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#define __JS_ENUMERATE(ClassName, snake_name) \
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if (!m_##snake_name##_prototype) \
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m_##snake_name##_prototype = heap().allocate<ClassName##Prototype>(*this, *this);
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JS_ENUMERATE_ITERATOR_PROTOTYPES
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#undef __JS_ENUMERATE
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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_native_function("gc", gc, 0, attr);
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define_native_function("isNaN", is_nan, 1, attr);
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define_native_function("isFinite", is_finite, 1, attr);
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define_native_function("parseFloat", parse_float, 1, attr);
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define_property("NaN", js_nan(), 0);
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define_property("Infinity", js_infinity(), 0);
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define_property("undefined", js_undefined(), 0);
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define_property("globalThis", this, attr);
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define_property("console", heap().allocate<ConsoleObject>(*this, *this), attr);
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define_property("Math", heap().allocate<MathObject>(*this, *this), attr);
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define_property("JSON", heap().allocate<JSONObject>(*this, *this), attr);
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define_property("Reflect", heap().allocate<ReflectObject>(*this, *this), attr);
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add_constructor("Array", m_array_constructor, *m_array_prototype);
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add_constructor("BigInt", m_bigint_constructor, *m_bigint_prototype);
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add_constructor("Boolean", m_boolean_constructor, *m_boolean_prototype);
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add_constructor("Date", m_date_constructor, *m_date_prototype);
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add_constructor("Error", m_error_constructor, *m_error_prototype);
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add_constructor("Function", m_function_constructor, *m_function_prototype);
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add_constructor("Number", m_number_constructor, *m_number_prototype);
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add_constructor("Object", m_object_constructor, *m_object_prototype);
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add_constructor("Proxy", m_proxy_constructor, *m_proxy_prototype);
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add_constructor("RegExp", m_regexp_constructor, *m_regexp_prototype);
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add_constructor("String", m_string_constructor, *m_string_prototype);
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add_constructor("Symbol", m_symbol_constructor, *m_symbol_prototype);
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#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
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add_constructor(#ClassName, m_##snake_name##_constructor, *m_##snake_name##_prototype);
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JS_ENUMERATE_ERROR_SUBCLASSES
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#undef __JS_ENUMERATE
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}
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GlobalObject::~GlobalObject()
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{
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}
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void GlobalObject::visit_children(Visitor& visitor)
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{
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Object::visit_children(visitor);
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visitor.visit(m_empty_object_shape);
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#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
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visitor.visit(m_##snake_name##_constructor);
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JS_ENUMERATE_ERROR_SUBCLASSES
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#undef __JS_ENUMERATE
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#define __JS_ENUMERATE(ClassName, snake_name) \
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visitor.visit(m_##snake_name##_prototype);
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JS_ENUMERATE_ITERATOR_PROTOTYPES
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#undef __JS_ENUMERATE
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}
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JS_DEFINE_NATIVE_FUNCTION(GlobalObject::gc)
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{
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dbg() << "Forced garbage collection requested!";
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vm.heap().collect_garbage();
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return js_undefined();
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}
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JS_DEFINE_NATIVE_FUNCTION(GlobalObject::is_nan)
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{
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auto number = vm.argument(0).to_number(global_object);
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if (vm.exception())
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return {};
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return Value(number.is_nan());
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}
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JS_DEFINE_NATIVE_FUNCTION(GlobalObject::is_finite)
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{
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auto number = vm.argument(0).to_number(global_object);
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if (vm.exception())
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return {};
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return Value(number.is_finite_number());
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}
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JS_DEFINE_NATIVE_FUNCTION(GlobalObject::parse_float)
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{
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if (vm.argument(0).is_number())
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return vm.argument(0);
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auto string = vm.argument(0).to_string(global_object);
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if (vm.exception())
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return {};
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for (size_t length = string.length(); length > 0; --length) {
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// This can't throw, so no exception check is fine.
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auto number = Value(js_string(vm, string.substring(0, length))).to_number(global_object);
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if (!number.is_nan())
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return number;
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}
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return js_nan();
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}
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}
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