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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.
*/
#pragma once
#include <LibJS/Heap/Heap.h>
#include <LibJS/Runtime/ScopeObject.h>
#include <LibJS/Runtime/VM.h>
namespace JS {
class GlobalObject : public ScopeObject {
JS_OBJECT(GlobalObject, ScopeObject);
public:
explicit GlobalObject();
virtual void initialize();
virtual ~GlobalObject() override;
virtual Optional<Variable> get_from_scope(const FlyString&) const override;
virtual void put_to_scope(const FlyString&, Variable) override;
virtual bool has_this_binding() const override;
virtual Value get_this_binding(GlobalObject&) const override;
Console& console() { return *m_console; }
Shape* empty_object_shape() { return m_empty_object_shape; }
Shape* new_object_shape() { return m_new_object_shape; }
Shape* new_script_function_prototype_object_shape() { return m_new_script_function_prototype_object_shape; }
// Not included in JS_ENUMERATE_NATIVE_OBJECTS due to missing distinct prototype
ProxyConstructor* proxy_constructor() { return m_proxy_constructor; }
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
ConstructorName* snake_name##_constructor() { return m_##snake_name##_constructor; } \
Object* snake_name##_prototype() { return m_##snake_name##_prototype; }
JS_ENUMERATE_BUILTIN_TYPES
#undef __JS_ENUMERATE
#define __JS_ENUMERATE(ClassName, snake_name) \
Object* snake_name##_prototype() { return m_##snake_name##_prototype; }
JS_ENUMERATE_ITERATOR_PROTOTYPES
#undef __JS_ENUMERATE
protected:
virtual void visit_edges(Visitor&) override;
template<typename ConstructorType>
void add_constructor(const FlyString& property_name, ConstructorType*&, Object* prototype);
private:
virtual bool is_global_object() const final { return true; }
JS_DECLARE_NATIVE_FUNCTION(gc);
JS_DECLARE_NATIVE_FUNCTION(is_nan);
JS_DECLARE_NATIVE_FUNCTION(is_finite);
JS_DECLARE_NATIVE_FUNCTION(parse_float);
NonnullOwnPtr<Console> m_console;
Shape* m_empty_object_shape { nullptr };
Shape* m_new_object_shape { nullptr };
Shape* m_new_script_function_prototype_object_shape { nullptr };
// Not included in JS_ENUMERATE_NATIVE_OBJECTS due to missing distinct prototype
ProxyConstructor* m_proxy_constructor { nullptr };
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
ConstructorName* m_##snake_name##_constructor { nullptr }; \
Object* m_##snake_name##_prototype { nullptr };
JS_ENUMERATE_BUILTIN_TYPES
#undef __JS_ENUMERATE
#define __JS_ENUMERATE(ClassName, snake_name) \
Object* m_##snake_name##_prototype { nullptr };
JS_ENUMERATE_ITERATOR_PROTOTYPES
#undef __JS_ENUMERATE
};
template<typename ConstructorType>
inline void GlobalObject::add_constructor(const FlyString& property_name, ConstructorType*& constructor, Object* prototype)
{
auto& vm = this->vm();
constructor = heap().allocate<ConstructorType>(*this, *this);
constructor->define_property(vm.names.name, js_string(heap(), property_name), Attribute::Configurable);
if (vm.exception())
return;
if (prototype) {
prototype->define_property(vm.names.constructor, constructor, Attribute::Writable | Attribute::Configurable);
if (vm.exception())
return;
}
define_property(property_name, constructor, Attribute::Writable | Attribute::Configurable);
}
}
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