EnabledLangFeature

rustc_feature::unstable

Struct EnabledLangFeature 

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pub struct EnabledLangFeature {
    pub gate_name: Symbol,
    pub attr_sp: Span,
    pub stable_since: Option<Symbol>,
}
Expand description

Information about an enabled language feature.

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§gate_name: Symbol

Name of the feature gate guarding the language feature.

§attr_sp: Span

Span of the #[feature(...)] attribute.

§stable_since: Option<Symbol>

If the lang feature is stable, the version number when it was stabilized.

Trait Implementations§

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impl Clone for EnabledLangFeature

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fn clone(&self) -> EnabledLangFeature

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for EnabledLangFeature

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Copy for EnabledLangFeature

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impl<T> Aligned for T

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const ALIGN: Alignment

Alignment of Self.
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fn allocate_on(self, arena: &'tcx Arena<'tcx>) -> &'tcx mut T

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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fn instrument(self, span: Span) -> Instrumented<Self>

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Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes