ladybird/Userland/Libraries/LibJS/Runtime/ErrorConstructor.h
Linus Groh 5832de62fe LibJS: Convert NativeFunction::{call,construct}() to ThrowCompletionOr
Both at the same time because many of them call construct() in call()
and I'm not keen on adding a bunch of temporary plumbing to turn
exceptions into throw completions.
Also changes the return value of construct() to Object* instead of Value
as it always needs to return an object; allowing an arbitrary Value is a
massive foot gun.
2021-10-21 09:02:23 +01:00

49 lines
2.2 KiB
C++

/*
* Copyright (c) 2020-2021, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/NativeFunction.h>
namespace JS {
class ErrorConstructor final : public NativeFunction {
JS_OBJECT(ErrorConstructor, NativeFunction);
public:
explicit ErrorConstructor(GlobalObject&);
virtual void initialize(GlobalObject&) override;
virtual ~ErrorConstructor() override = default;
virtual ThrowCompletionOr<Value> call() override;
virtual ThrowCompletionOr<Object*> construct(FunctionObject& new_target) override;
private:
virtual bool has_constructor() const override { return true; }
};
#define DECLARE_NATIVE_ERROR_CONSTRUCTOR(ClassName, snake_name, PrototypeName, ConstructorName) \
class ConstructorName final : public NativeFunction { \
JS_OBJECT(ConstructorName, NativeFunction); \
\
public: \
explicit ConstructorName(GlobalObject&); \
virtual void initialize(GlobalObject&) override; \
virtual ~ConstructorName() override; \
virtual ThrowCompletionOr<Value> call() override; \
virtual ThrowCompletionOr<Object*> construct(FunctionObject& new_target) override; \
\
private: \
virtual bool has_constructor() const override { return true; } \
};
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName, ArrayType) \
DECLARE_NATIVE_ERROR_CONSTRUCTOR(ClassName, snake_name, PrototypeName, ConstructorName)
JS_ENUMERATE_NATIVE_ERRORS
#undef __JS_ENUMERATE
}