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LibJS: Use enumerator macros for boilerplate code around native types

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This commit is contained in:
Andreas Kling 2020-04-10 14:06:52 +02:00
parent 0bdfb952c5
commit cb0dfd8f72
11 changed files with 124 additions and 170 deletions
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51
Libraries/LibJS/Forward.h
View file

@ -26,36 +26,41 @@
#pragma once
#define JS_ENUMERATE_ERROR_SUBCLASSES \
__JS_ENUMERATE_ERROR_SUBCLASS(EvalError, eval_error) \
__JS_ENUMERATE_ERROR_SUBCLASS(InternalError, internal_error) \
__JS_ENUMERATE_ERROR_SUBCLASS(RangeError, range_error) \
__JS_ENUMERATE_ERROR_SUBCLASS(ReferenceError, reference_error) \
__JS_ENUMERATE_ERROR_SUBCLASS(SyntaxError, syntax_error) \
__JS_ENUMERATE_ERROR_SUBCLASS(TypeError, type_error) \
__JS_ENUMERATE_ERROR_SUBCLASS(URIError, uri_error)
#define JS_ENUMERATE_NATIVE_OBJECTS \
__JS_ENUMERATE(Array, array, ArrayPrototype, ArrayConstructor) \
__JS_ENUMERATE(BooleanObject, boolean, BooleanPrototype, BooleanConstructor) \
__JS_ENUMERATE(Date, date, DatePrototype, DateConstructor) \
__JS_ENUMERATE(Error, error, ErrorPrototype, ErrorConstructor) \
__JS_ENUMERATE(Function, function, FunctionPrototype, FunctionConstructor) \
__JS_ENUMERATE(NumberObject, number, NumberPrototype, NumberConstructor) \
__JS_ENUMERATE(Object, object, ObjectPrototype, ObjectConstructor) \
__JS_ENUMERATE(StringObject, string, StringPrototype, StringConstructor)
#define JS_ENUMERATE_ERROR_SUBCLASSES \
__JS_ENUMERATE(EvalError, eval_error, EvalErrorPrototype, EvalErrorConstructor) \
__JS_ENUMERATE(InternalError, internal_error, InternalErrorPrototype, InternalErrorConstructor) \
__JS_ENUMERATE(RangeError, range_error, RangeErrorPrototype, RangeErrorConstructor) \
__JS_ENUMERATE(ReferenceError, reference_error, ReferenceErrorPrototype, ReferenceErrorConstructor) \
__JS_ENUMERATE(SyntaxError, syntax_error, SyntaxErrorPrototype, SyntaxErrorConstructor) \
__JS_ENUMERATE(TypeError, type_error, TypeErrorPrototype, TypeErrorConstructor) \
__JS_ENUMERATE(URIError, uri_error, URIErrorPrototype, URIErrorConstructor)
#define JS_ENUMERATE_BUILTIN_TYPES \
JS_ENUMERATE_NATIVE_OBJECTS \
JS_ENUMERATE_ERROR_SUBCLASSES
namespace JS {
class ASTNode;
class ArrayConstructor;
class BooleanConstructor;
class Cell;
class DateConstructor;
class Error;
class ErrorConstructor;
class Exception;
class Expression;
class Function;
class FunctionConstructor;
class GlobalObject;
class HandleImpl;
class Heap;
class HeapBlock;
class Interpreter;
class NumberConstructor;
class Object;
class ObjectConstructor;
class PrimitiveString;
class ScopeNode;
class Shape;
@ -63,12 +68,12 @@ class Statement;
class Value;
enum class DeclarationKind;
#define __JS_ENUMERATE_ERROR_SUBCLASS(TitleCase, snake_case) \
class TitleCase; \
class TitleCase##Constructor; \
class TitleCase##Prototype;
JS_ENUMERATE_ERROR_SUBCLASSES
#undef __JS_ENUMERATE_ERROR_SUBCLASS
#define __JS_ENUMERATE(ClassName, snake_name, ConstructorName, PrototypeName) \
class ClassName; \
class ConstructorName; \
class PrototypeName;
JS_ENUMERATE_BUILTIN_TYPES
#undef __JS_ENUMERATE
struct Argument;

37
Libraries/LibJS/Interpreter.cpp
View file

@ -49,19 +49,15 @@ Interpreter::Interpreter()
{
m_empty_object_shape = heap().allocate<Shape>();
// These are done first since other prototypes depend on their presence.
m_object_prototype = heap().allocate<ObjectPrototype>();
m_function_prototype = heap().allocate<FunctionPrototype>();
m_string_prototype = heap().allocate<StringPrototype>();
m_array_prototype = heap().allocate<ArrayPrototype>();
m_error_prototype = heap().allocate<ErrorPrototype>();
m_date_prototype = heap().allocate<DatePrototype>();
m_number_prototype = heap().allocate<NumberPrototype>();
m_boolean_prototype = heap().allocate<BooleanPrototype>();
#define __JS_ENUMERATE_ERROR_SUBCLASS(TitleCase, snake_case) \
m_##snake_case##_prototype = heap().allocate<TitleCase##Prototype>();
JS_ENUMERATE_ERROR_SUBCLASSES
#undef __JS_ENUMERATE_ERROR_SUBCLASS
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
if (!m_##snake_name##_prototype) \
m_##snake_name##_prototype = heap().allocate<PrototypeName>();
JS_ENUMERATE_BUILTIN_TYPES
#undef __JS_ENUMERATE
}
Interpreter::~Interpreter()
@ -178,25 +174,14 @@ Optional<Value> Interpreter::get_variable(const FlyString& name)
void Interpreter::gather_roots(Badge<Heap>, HashTable<Cell*>& roots)
{
roots.set(m_empty_object_shape);
roots.set(m_global_object);
roots.set(m_string_prototype);
roots.set(m_object_prototype);
roots.set(m_array_prototype);
roots.set(m_date_prototype);
roots.set(m_function_prototype);
roots.set(m_number_prototype);
roots.set(m_boolean_prototype);
roots.set(m_error_prototype);
#define __JS_ENUMERATE_ERROR_SUBCLASS(TitleCase, snake_case) \
roots.set(m_##snake_case##_prototype);
JS_ENUMERATE_ERROR_SUBCLASSES
#undef __JS_ENUMERATE_ERROR_SUBCLASS
roots.set(m_exception);
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
roots.set(m_##snake_name##_prototype);
JS_ENUMERATE_BUILTIN_TYPES
#undef __JS_ENUMERATE
if (m_last_value.is_cell())
roots.set(m_last_value.as_cell());

42
Libraries/LibJS/Interpreter.h
View file

@ -136,22 +136,15 @@ public:
Shape* empty_object_shape() { return m_empty_object_shape; }
Object* string_prototype() { return m_string_prototype; }
Object* object_prototype() { return m_object_prototype; }
Object* array_prototype() { return m_array_prototype; }
Object* date_prototype() { return m_date_prototype; }
Object* function_prototype() { return m_function_prototype; }
Object* number_prototype() { return m_number_prototype; }
Object* boolean_prototype() { return m_boolean_prototype; }
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
Object* snake_name##_prototype() { return m_##snake_name##_prototype; }
JS_ENUMERATE_BUILTIN_TYPES
#undef __JS_ENUMERATE
Object* error_prototype() { return m_error_prototype; }
#define __JS_ENUMERATE_ERROR_SUBCLASS(TitleCase, snake_case) \
Object* snake_case##_prototype() { return m_##snake_case##_prototype; }
JS_ENUMERATE_ERROR_SUBCLASSES
#undef __JS_ENUMERATE_ERROR_SUBCLASS
Exception* exception() { return m_exception; }
Exception* exception()
{
return m_exception;
}
void clear_exception() { m_exception = nullptr; }
template<typename T, typename... Args>
@ -180,21 +173,12 @@ private:
Shape* m_empty_object_shape { nullptr };
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
Object* m_##snake_name##_prototype { nullptr };
JS_ENUMERATE_BUILTIN_TYPES
#undef __JS_ENUMERATE
Object* m_global_object { nullptr };
Object* m_string_prototype { nullptr };
Object* m_object_prototype { nullptr };
Object* m_array_prototype { nullptr };
Object* m_date_prototype { nullptr };
Object* m_function_prototype { nullptr };
Object* m_number_prototype { nullptr };
Object* m_boolean_prototype { nullptr };
Object* m_error_prototype { nullptr };
#define __JS_ENUMERATE_ERROR_SUBCLASS(TitleCase, snake_case) \
Object* m_##snake_case##_prototype;
JS_ENUMERATE_ERROR_SUBCLASSES
#undef __JS_ENUMERATE_ERROR_SUBCLASS
Exception* m_exception { nullptr };

18
Libraries/LibJS/Runtime/Error.cpp
View file

@ -40,16 +40,16 @@ Error::~Error()
{
}
#define __JS_ENUMERATE_ERROR_SUBCLASS(TitleCase, snake_case) \
TitleCase::TitleCase(const String& message) \
: Error(#TitleCase, message) \
{ \
set_prototype(interpreter().snake_case##_prototype()); \
} \
TitleCase::~TitleCase() {} \
const char* TitleCase::class_name() const { return #TitleCase; }
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
ClassName::ClassName(const String& message) \
: Error(#ClassName, message) \
{ \
set_prototype(interpreter().snake_name##_prototype()); \
} \
ClassName::~ClassName() {} \
const char* ClassName::class_name() const { return #ClassName; }
JS_ENUMERATE_ERROR_SUBCLASSES
#undef __JS_ENUMERATE_ERROR_SUBCLASS
#undef __JS_ENUMERATE
}

22
Libraries/LibJS/Runtime/Error.h
View file

@ -47,18 +47,18 @@ private:
String m_message;
};
#define DECLARE_ERROR_SUBCLASS(TitleCase, snake_case) \
class TitleCase final : public Error { \
public: \
TitleCase(const String& message); \
virtual ~TitleCase() override; \
\
private: \
virtual const char* class_name() const override; \
#define DECLARE_ERROR_SUBCLASS(ClassName, snake_name, PrototypeName, ConstructorName) \
class ClassName final : public Error { \
public: \
ClassName(const String& message); \
virtual ~ClassName() override; \
\
private: \
virtual const char* class_name() const override; \
};
#define __JS_ENUMERATE_ERROR_SUBCLASS(TitleCase, snake_case) \
DECLARE_ERROR_SUBCLASS(TitleCase, snake_case)
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
DECLARE_ERROR_SUBCLASS(ClassName, snake_name, PrototypeName, ConstructorName)
JS_ENUMERATE_ERROR_SUBCLASSES
#undef __JS_ENUMERATE_ERROR_SUBCLASS
#undef __JS_ENUMERATE
}

18
Libraries/LibJS/Runtime/ErrorConstructor.cpp
View file

@ -53,28 +53,26 @@ Value ErrorConstructor::construct(Interpreter& interpreter)
return interpreter.heap().allocate<Error>("Error", message);
}
#define DEFINE_ERROR_SUBCLASS_CONSTRUCTOR(TitleCase, snake_case) \
TitleCase##Constructor::TitleCase##Constructor() \
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
ConstructorName::ConstructorName() \
{ \
put("prototype", interpreter().snake_case##_prototype()); \
put("prototype", interpreter().snake_name##_prototype()); \
put("length", Value(1)); \
} \
TitleCase##Constructor::~TitleCase##Constructor() {} \
Value TitleCase##Constructor::call(Interpreter& interpreter) \
ConstructorName::~ConstructorName() {} \
Value ConstructorName::call(Interpreter& interpreter) \
{ \
return construct(interpreter); \
} \
Value TitleCase##Constructor::construct(Interpreter& interpreter) \
Value ConstructorName::construct(Interpreter& interpreter) \
{ \
String message = ""; \
if (!interpreter.call_frame().arguments.is_empty() && !interpreter.call_frame().arguments[0].is_undefined()) \
message = interpreter.call_frame().arguments[0].to_string(); \
return interpreter.heap().allocate<TitleCase>(message); \
return interpreter.heap().allocate<ClassName>(message); \
}
#define __JS_ENUMERATE_ERROR_SUBCLASS(TitleCase, snake_case) \
DEFINE_ERROR_SUBCLASS_CONSTRUCTOR(TitleCase, snake_case)
JS_ENUMERATE_ERROR_SUBCLASSES
#undef __JS_ENUMERATE_ERROR_SUBCLASS
#undef __JS_ENUMERATE
}

28
Libraries/LibJS/Runtime/ErrorConstructor.h
View file

@ -44,22 +44,22 @@ private:
virtual const char* class_name() const override { return "ErrorConstructor"; }
};
#define DECLARE_ERROR_SUBCLASS_CONSTRUCTOR(TitleCase, snake_case) \
class TitleCase##Constructor final : public NativeFunction { \
public: \
TitleCase##Constructor(); \
virtual ~TitleCase##Constructor() override; \
virtual Value call(Interpreter&) override; \
virtual Value construct(Interpreter&) override; \
\
private: \
virtual bool has_constructor() const override { return true; } \
virtual const char* class_name() const override { return #TitleCase "Constructor"; } \
#define DECLARE_ERROR_SUBCLASS_CONSTRUCTOR(ClassName, snake_name, PrototypeName, ConstructorName) \
class ConstructorName final : public NativeFunction { \
public: \
ConstructorName(); \
virtual ~ConstructorName() override; \
virtual Value call(Interpreter&) override; \
virtual Value construct(Interpreter&) override; \
\
private: \
virtual bool has_constructor() const override { return true; } \
virtual const char* class_name() const override { return #ClassName "Constructor"; } \
};
#define __JS_ENUMERATE_ERROR_SUBCLASS(TitleCase, snake_case) \
DECLARE_ERROR_SUBCLASS_CONSTRUCTOR(TitleCase, snake_case)
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
DECLARE_ERROR_SUBCLASS_CONSTRUCTOR(ClassName, snake_name, PrototypeName, ConstructorName)
JS_ENUMERATE_ERROR_SUBCLASSES
#undef __JS_ENUMERATE_ERROR_SUBCLASS
#undef __JS_ENUMERATE
}

18
Libraries/LibJS/Runtime/ErrorPrototype.cpp
View file

@ -88,17 +88,15 @@ Value ErrorPrototype::to_string(Interpreter& interpreter)
return js_string(interpreter, String::format("%s: %s", name.characters(), message.characters()));
}
#define DEFINE_ERROR_SUBCLASS_PROTOTYPE(TitleCase, snake_case) \
TitleCase::TitleCase() \
{ \
set_prototype(interpreter().error_prototype()); \
} \
TitleCase::~TitleCase() {} \
const char* TitleCase::class_name() const { return #TitleCase; }
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
PrototypeName::PrototypeName() \
{ \
set_prototype(interpreter().error_prototype()); \
} \
PrototypeName::~PrototypeName() {} \
const char* PrototypeName::class_name() const { return #PrototypeName; }
#define __JS_ENUMERATE_ERROR_SUBCLASS(TitleCase, snake_case) \
DEFINE_ERROR_SUBCLASS_PROTOTYPE(TitleCase##Prototype, snake_case##_prototype)
JS_ENUMERATE_ERROR_SUBCLASSES
#undef __JS_ENUMERATE_ERROR_SUBCLASS
#undef __JS_ENUMERATE
}

22
Libraries/LibJS/Runtime/ErrorPrototype.h
View file

@ -44,19 +44,19 @@ private:
static Value message_getter(Interpreter&);
};
#define DECLARE_ERROR_SUBCLASS_PROTOTYPE(TitleCase, snake_case) \
class TitleCase final : public Object { \
public: \
TitleCase(); \
virtual ~TitleCase() override; \
\
private: \
virtual const char* class_name() const override; \
#define DECLARE_ERROR_SUBCLASS_PROTOTYPE(ClassName, snake_name, PrototypeName, ConstructorName) \
class PrototypeName final : public Object { \
public: \
PrototypeName(); \
virtual ~PrototypeName() override; \
\
private: \
virtual const char* class_name() const override; \
};
#define __JS_ENUMERATE_ERROR_SUBCLASS(TitleCase, snake_case) \
DECLARE_ERROR_SUBCLASS_PROTOTYPE(TitleCase##Prototype, snake_case##_prototype)
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
DECLARE_ERROR_SUBCLASS_PROTOTYPE(ClassName, snake_name, PrototypeName, ConstructorName)
JS_ENUMERATE_ERROR_SUBCLASSES
#undef __JS_ENUMERATE_ERROR_SUBCLASS
#undef __JS_ENUMERATE
}

6
Libraries/LibJS/Runtime/GlobalObject.cpp
View file

@ -73,10 +73,10 @@ GlobalObject::GlobalObject()
add_constructor("Number", m_number_constructor, *interpreter().number_prototype());
add_constructor("Object", m_object_constructor, *interpreter().object_prototype());
#define __JS_ENUMERATE_ERROR_SUBCLASS(TitleCase, snake_case) \
add_constructor(#TitleCase, m_##snake_case##_constructor, *interpreter().snake_case##_prototype());
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
add_constructor(#ClassName, m_##snake_name##_constructor, *interpreter().snake_name##_prototype());
JS_ENUMERATE_ERROR_SUBCLASSES
#undef __JS_ENUMERATE_ERROR_SUBCLASS
#undef __JS_ENUMERATE
}
GlobalObject::~GlobalObject()

32
Libraries/LibJS/Runtime/GlobalObject.h
View file

@ -35,18 +35,10 @@ 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; }
FunctionConstructor* function_constructor() { return m_function_constructor; }
NumberConstructor* number_constructor() { return m_number_constructor; };
ObjectConstructor* object_constructor() { return m_object_constructor; }
ErrorConstructor* error_constructor() { return m_error_constructor; }
#define __JS_ENUMERATE_ERROR_SUBCLASS(TitleCase, snake_case) \
TitleCase##Constructor* snake_case##_constructor() { return m_##snake_case##_constructor; }
JS_ENUMERATE_ERROR_SUBCLASSES
#undef __JS_ENUMERATE_ERROR_SUBCLASS
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
ConstructorName* snake_name##_constructor() { return m_##snake_name##_constructor; }
JS_ENUMERATE_BUILTIN_TYPES
#undef __JS_ENUMERATE
protected:
virtual void visit_children(Visitor&) override;
@ -60,18 +52,10 @@ private:
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 };
FunctionConstructor* m_function_constructor { nullptr };
NumberConstructor* m_number_constructor { nullptr };
ObjectConstructor* m_object_constructor { nullptr };
ErrorConstructor* m_error_constructor { nullptr };
#define __JS_ENUMERATE_ERROR_SUBCLASS(TitleCase, snake_case) \
TitleCase##Constructor* m_##snake_case##_constructor;
JS_ENUMERATE_ERROR_SUBCLASSES
#undef __JS_ENUMERATE_ERROR_SUBCLASS
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
ConstructorName* m_##snake_name##_constructor { nullptr };
JS_ENUMERATE_BUILTIN_TYPES
#undef __JS_ENUMERATE
};
}