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serenity/Userland/Libraries/LibJS/Runtime/Error.h
Hendiadyoin1 89c82abf1f LibJS: Implement non standard error.stack attribute
All other browser already support this feature.
There is a Stage 1 proposal to standardize this, but it does not seem
to be active.
2022-02-07 14:17:57 +00:00

54 lines
2 KiB
C++

/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/FlyString.h>
#include <LibJS/Runtime/Completion.h>
#include <LibJS/Runtime/Object.h>
namespace JS {
class Error : public Object {
JS_OBJECT(Error, Object);
public:
static Error* create(GlobalObject&);
static Error* create(GlobalObject&, String const& message);
explicit Error(Object& prototype);
virtual ~Error() override = default;
String const& stack_string() const { return m_stack_string; }
ThrowCompletionOr<void> install_error_cause(Value options);
private:
void populate_stack();
String m_stack_string {};
};
// NOTE: Making these inherit from Error is not required by the spec but
// our way of implementing the [[ErrorData]] internal slot, which is
// used in Object.prototype.toString().
#define DECLARE_NATIVE_ERROR(ClassName, snake_name, PrototypeName, ConstructorName) \
class ClassName final : public Error { \
JS_OBJECT(ClassName, Error); \
\
public: \
static ClassName* create(GlobalObject&); \
static ClassName* create(GlobalObject&, String const& message); \
\
explicit ClassName(Object& prototype); \
virtual ~ClassName() override = default; \
};
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName, ArrayType) \
DECLARE_NATIVE_ERROR(ClassName, snake_name, PrototypeName, ConstructorName)
JS_ENUMERATE_NATIVE_ERRORS
#undef __JS_ENUMERATE
}