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

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

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

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impl GatedSpans

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

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

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

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.

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

Is the provided feature gate ungated currently?

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

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

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

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impl Default for GatedSpans

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fn default() -> GatedSpans

Returns the “default value” for a type. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

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: 40 bytes