[][src]Struct rustc_ap_rustc_session::parse::GatedSpans

pub struct GatedSpans {
    pub spans: Lock<FxHashMap<Symbol, Vec<Span>>>,
}

Collected spans during parsing for places where a certain feature was used and should be feature gated accordingly in check_crate.

Fields

spans: Lock<FxHashMap<Symbol, Vec<Span>>>

Implementations

impl GatedSpans[src]

pub fn gate(&self, feature: Symbol, span: Span)[src]

Feature gate the given span under the given feature which is same Symbol used in active.rs.

pub fn ungate_last(&self, feature: Symbol, span: Span)[src]

Ungate the last span under the given feature. Panics if the given span wasn't the last one.

Using this is discouraged unless you have a really good reason to.

pub fn is_ungated(&self, feature: Symbol) -> bool[src]

Is the provided feature gate ungated currently?

Using this is discouraged unless you have a really good reason to.

pub fn merge(&self, spans: FxHashMap<Symbol, Vec<Span>>)[src]

Prepend the given set of spans onto the set in self.

Trait Implementations

impl Default for GatedSpans[src]

Auto Trait Implementations

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impl<T> Any for T where
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impl<'a, T> Captures<'a> for T where
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impl<T, U> Into<U> for T where
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type Error = !

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type Error = Infallible

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