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LibJS: Return Optional<T> from Completion::{value,target}(), not T
In the end this is a nicer API than having separate has_{value,target}() and having to check those first, and then making another Optional from the unwrapped value: completion.has_value() ? completion.value() : Optional<Value> {} // ^^^^^^^^^^^^^^^^^^ // Implicit creation of non-empty Optional<Value> This way we need to unwrap the optional ourselves, but can easily pass it to something else as well. This is in anticipation of the AST using completions :^)
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15 changed files with 55 additions and 57 deletions
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@ -60,12 +60,10 @@ public:
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}
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[[nodiscard]] Type type() const { return m_type; }
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[[nodiscard]] bool has_value() const { return m_value.has_value(); }
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[[nodiscard]] Value value() const { return *m_value; }
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[[nodiscard]] bool has_target() const { return m_target.has_value(); }
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[[nodiscard]] FlyString const& target() const { return *m_target; }
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[[nodiscard]] Optional<Value>& value() { return m_value; }
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[[nodiscard]] Optional<Value> const& value() const { return m_value; }
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[[nodiscard]] Optional<FlyString>& target() { return m_target; }
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[[nodiscard]] Optional<FlyString> const& target() const { return m_target; }
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// "abrupt completion refers to any completion with a [[Type]] value other than normal"
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[[nodiscard]] bool is_abrupt() const { return m_type != Type::Normal; }
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