mirror of
https://github.com/RGBCube/serenity
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88814acbd3
This includes an Error::create overload to create an Error from a UTF-8 StringView. If creating a String from that view fails, the factory will return an OOM InternalError instead. VM::throw_completion can also make use of this overload via its perfect forwarding.
67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/DeprecatedFlyString.h>
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#include <AK/String.h>
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#include <LibJS/Runtime/Completion.h>
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#include <LibJS/Runtime/Object.h>
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#include <LibJS/SourceRange.h>
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namespace JS {
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struct TracebackFrame {
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DeprecatedFlyString function_name;
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SourceRange source_range;
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};
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class Error : public Object {
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JS_OBJECT(Error, Object);
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public:
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static NonnullGCPtr<Error> create(Realm&);
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static NonnullGCPtr<Error> create(Realm&, String message);
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static ThrowCompletionOr<NonnullGCPtr<Error>> create(Realm&, StringView message);
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virtual ~Error() override = default;
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[[nodiscard]] ThrowCompletionOr<String> stack_string(VM&) const;
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ThrowCompletionOr<void> install_error_cause(Value options);
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Vector<TracebackFrame, 32> const& traceback() const { return m_traceback; }
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protected:
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explicit Error(Object& prototype);
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private:
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void populate_stack();
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Vector<TracebackFrame, 32> m_traceback;
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};
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// NOTE: Making these inherit from Error is not required by the spec but
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// our way of implementing the [[ErrorData]] internal slot, which is
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// used in Object.prototype.toString().
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#define DECLARE_NATIVE_ERROR(ClassName, snake_name, PrototypeName, ConstructorName) \
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class ClassName final : public Error { \
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JS_OBJECT(ClassName, Error); \
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\
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public: \
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static NonnullGCPtr<ClassName> create(Realm&); \
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static NonnullGCPtr<ClassName> create(Realm&, String message); \
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static ThrowCompletionOr<NonnullGCPtr<ClassName>> create(Realm&, StringView message); \
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\
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explicit ClassName(Object& prototype); \
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virtual ~ClassName() override = default; \
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};
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#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName, ArrayType) \
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DECLARE_NATIVE_ERROR(ClassName, snake_name, PrototypeName, ConstructorName)
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JS_ENUMERATE_NATIVE_ERRORS
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#undef __JS_ENUMERATE
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}
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