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LibJS: Add "constructor" property to constructor prototypes

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This commit is contained in:
Andreas Kling 2020-04-08 11:05:38 +02:00
parent 39855fe9ef
commit f07f8d5a44
8 changed files with 98 additions and 10 deletions
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36
Libraries/LibJS/Runtime/GlobalObject.cpp
View file

@ -43,6 +43,14 @@
namespace JS {
template<typename ConstructorType>
void GlobalObject::add_constructor(const FlyString& property_name, ConstructorType*& constructor, Object& prototype)
{
constructor = heap().allocate<ConstructorType>();
prototype.put("constructor", constructor);
put(property_name, constructor);
}
GlobalObject::GlobalObject()
{
put_native_function("gc", gc);
@ -54,20 +62,34 @@ GlobalObject::GlobalObject()
put("undefined", js_undefined());
put("console", heap().allocate<ConsoleObject>());
put("Date", heap().allocate<DateConstructor>());
put("Error", heap().allocate<ErrorConstructor>());
put("Function", heap().allocate<FunctionConstructor>());
put("Math", heap().allocate<MathObject>());
put("Object", heap().allocate<ObjectConstructor>());
put("Array", heap().allocate<ArrayConstructor>());
put("Boolean", heap().allocate<BooleanConstructor>());
put("Number", heap().allocate<NumberConstructor>());
add_constructor("Array", m_array_constructor, *interpreter().array_prototype());
add_constructor("Boolean", m_boolean_constructor, *interpreter().boolean_prototype());
add_constructor("Date", m_date_constructor, *interpreter().date_prototype());
add_constructor("Error", m_error_constructor, *interpreter().error_prototype());
add_constructor("Function", m_function_constructor, *interpreter().function_prototype());
add_constructor("Number", m_number_constructor, *interpreter().number_prototype());
add_constructor("Object", m_object_constructor, *interpreter().object_prototype());
}
GlobalObject::~GlobalObject()
{
}
void GlobalObject::visit_children(Visitor& visitor)
{
Object::visit_children(visitor);
visitor.visit(m_array_constructor);
visitor.visit(m_boolean_constructor);
visitor.visit(m_date_constructor);
visitor.visit(m_error_constructor);
visitor.visit(m_function_constructor);
visitor.visit(m_number_constructor);
visitor.visit(m_object_constructor);
}
Value GlobalObject::gc(Interpreter& interpreter)
{
dbg() << "Forced garbage collection requested!";

21
Libraries/LibJS/Runtime/GlobalObject.h
View file

@ -24,7 +24,6 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <LibJS/Runtime/Object.h>
@ -36,11 +35,31 @@ public:
explicit GlobalObject();
virtual ~GlobalObject() override;
ArrayConstructor* array_constructor() { return m_array_constructor; }
BooleanConstructor* boolean_constructor() { return m_boolean_constructor; }
DateConstructor* date_constructor() { return m_date_constructor; }
ErrorConstructor* error_constructor() { return m_error_constructor; }
FunctionConstructor* function_constructor() { return m_function_constructor; }
NumberConstructor* number_constructor() { return m_number_constructor; };
ObjectConstructor* object_constructor() { return m_object_constructor; }
private:
virtual const char* class_name() const override { return "GlobalObject"; }
virtual void visit_children(Visitor&) override;
static Value gc(Interpreter&);
static Value is_nan(Interpreter&);
template<typename ConstructorType>
void add_constructor(const FlyString& property_name, ConstructorType*&, Object& prototype);
ArrayConstructor* m_array_constructor { nullptr };
BooleanConstructor* m_boolean_constructor { nullptr };
DateConstructor* m_date_constructor { nullptr };
ErrorConstructor* m_error_constructor { nullptr };
FunctionConstructor* m_function_constructor { nullptr };
NumberConstructor* m_number_constructor { nullptr };
ObjectConstructor* m_object_constructor { nullptr };
};
}

1
Libraries/LibJS/Runtime/Object.cpp
View file

@ -28,6 +28,7 @@
#include <LibJS/Heap/Heap.h>
#include <LibJS/Interpreter.h>
#include <LibJS/Runtime/Array.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/NativeFunction.h>
#include <LibJS/Runtime/NativeProperty.h>
#include <LibJS/Runtime/Object.h>