Get active features dynamically by their `Symbol`
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@ -53,6 +53,18 @@ macro_rules! declare_features {
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$(f(stringify!($feature), self.$feature);)+
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}
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}
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impl std::ops::Index<Symbol> for Features {
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type Output = bool;
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fn index(&self, feature: Symbol) -> &Self::Output {
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match feature {
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$( sym::$feature => &self.$feature, )*
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_ => panic!("{} was not defined in `declare_features`", feature),
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}
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}
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}
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};
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}
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