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AK: Allow subclassing Error
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parent
b2170c11a4
commit
e253cf694e
Notes:
sideshowbarker
2024-07-18 01:24:05 +09:00
Author: https://github.com/awesomekling Commit: https://github.com/SerenityOS/serenity/commit/e253cf694e5
24
AK/Error.h
24
AK/Error.h
@ -28,12 +28,13 @@ public:
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int code() const { return m_code; }
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StringView string_literal() const { return m_string_literal; }
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private:
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protected:
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Error(int code)
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: m_code(code)
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{
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}
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private:
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Error(StringView string_literal)
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: m_string_literal(string_literal)
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{
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@ -43,7 +44,7 @@ private:
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StringView m_string_literal;
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};
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template<typename T>
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template<typename T, typename ErrorType = Error>
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class [[nodiscard]] ErrorOr {
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public:
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ErrorOr(T const& value)
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@ -63,7 +64,7 @@ public:
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}
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#endif
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ErrorOr(Error&& error)
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ErrorOr(ErrorType&& error)
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: m_error(move(error))
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{
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}
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@ -78,20 +79,20 @@ public:
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bool is_error() const { return m_error.has_value(); }
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T release_value() { return m_value.release_value(); }
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Error release_error() { return m_error.release_value(); }
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ErrorType release_error() { return m_error.release_value(); }
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T release_value_but_fixme_should_propagate_errors() { return release_value(); }
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private:
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Optional<T> m_value;
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Optional<Error> m_error;
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Optional<ErrorType> m_error;
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};
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// Partial specialization for void value type
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template<>
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class [[nodiscard]] ErrorOr<void> {
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template<typename ErrorType>
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class [[nodiscard]] ErrorOr<void, ErrorType> {
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public:
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ErrorOr(Error error)
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ErrorOr(ErrorType error)
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: m_error(move(error))
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{
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}
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@ -101,12 +102,13 @@ public:
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ErrorOr(const ErrorOr& other) = default;
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~ErrorOr() = default;
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Error& error() { return m_error.value(); }
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ErrorType& error() { return m_error.value(); }
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bool is_error() const { return m_error.has_value(); }
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Error release_error() { return m_error.release_value(); }
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ErrorType release_error() { return m_error.release_value(); }
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void release_value() { }
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private:
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Optional<Error> m_error;
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Optional<ErrorType> m_error;
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};
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template<>
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