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AK: Add Optional::emplace method.
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@ -34,9 +34,10 @@
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namespace AK {
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template<typename T>
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class alignas(T) [[nodiscard]] Optional {
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class alignas(T) [[nodiscard]] Optional
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{
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public:
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Optional() {}
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Optional() { }
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Optional(const T& value)
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: m_has_value(true)
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@ -51,13 +52,13 @@ public:
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new (&m_storage) T(value);
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}
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Optional(T&& value)
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Optional(T && value)
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: m_has_value(true)
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{
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new (&m_storage) T(move(value));
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}
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Optional(Optional&& other)
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Optional(Optional && other)
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: m_has_value(other.m_has_value)
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{
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if (other.has_value()) {
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@ -116,6 +117,14 @@ public:
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}
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}
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template<typename... Parameters>
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ALWAYS_INLINE void emplace(Parameters && ... parameters)
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{
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clear();
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m_has_value = true;
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new (&m_storage) T(forward<Parameters>(parameters)...);
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}
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ALWAYS_INLINE bool has_value() const { return m_has_value; }
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ALWAYS_INLINE T& value()
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