mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-10-04 15:19:16 +00:00
5b060da4f4
Instead of re-symbolicating entire stacks from scratch every time we want a JS VM backtrace, we now use the ExecutionContext object as cache storage via a new CachedSourceRange object. This means that once a stack frame has been symbolicated, we don't have to resymbolicate it again (unless the program counter moves within that stack frame). This drastically reduces time spent in symbolication in some WPT tests.
76 lines
2.7 KiB
C++
76 lines
2.7 KiB
C++
/*
|
|
* Copyright (c) 2020, Andreas Kling <andreas@ladybird.org>
|
|
* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/DeprecatedFlyString.h>
|
|
#include <AK/String.h>
|
|
#include <LibJS/Runtime/Completion.h>
|
|
#include <LibJS/Runtime/Object.h>
|
|
#include <LibJS/SourceRange.h>
|
|
|
|
namespace JS {
|
|
|
|
struct TracebackFrame {
|
|
DeprecatedFlyString function_name;
|
|
[[nodiscard]] SourceRange const& source_range() const;
|
|
|
|
RefPtr<CachedSourceRange> cached_source_range;
|
|
};
|
|
|
|
enum CompactTraceback {
|
|
No,
|
|
Yes,
|
|
};
|
|
|
|
class Error : public Object {
|
|
JS_OBJECT(Error, Object);
|
|
JS_DECLARE_ALLOCATOR(Error);
|
|
|
|
public:
|
|
static NonnullGCPtr<Error> create(Realm&);
|
|
static NonnullGCPtr<Error> create(Realm&, String message);
|
|
static NonnullGCPtr<Error> create(Realm&, StringView message);
|
|
|
|
virtual ~Error() override = default;
|
|
|
|
[[nodiscard]] String stack_string(CompactTraceback compact = CompactTraceback::No) const;
|
|
|
|
ThrowCompletionOr<void> install_error_cause(Value options);
|
|
|
|
Vector<TracebackFrame, 32> const& traceback() const { return m_traceback; }
|
|
|
|
protected:
|
|
explicit Error(Object& prototype);
|
|
|
|
private:
|
|
void populate_stack();
|
|
Vector<TracebackFrame, 32> m_traceback;
|
|
};
|
|
|
|
// 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); \
|
|
JS_DECLARE_ALLOCATOR(ClassName); \
|
|
\
|
|
public: \
|
|
static NonnullGCPtr<ClassName> create(Realm&); \
|
|
static NonnullGCPtr<ClassName> create(Realm&, String message); \
|
|
static NonnullGCPtr<ClassName> create(Realm&, StringView 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
|
|
}
|