Struct rustc_hir::hir::Generics

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pub struct Generics<'hir> {
    pub params: &'hir [GenericParam<'hir>],
    pub predicates: &'hir [WherePredicate<'hir>],
    pub has_where_clause_predicates: bool,
    pub where_clause_span: Span,
    pub span: Span,
}
Expand description

Represents lifetimes and type parameters attached to a declaration of a function, enum, trait, etc.

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§params: &'hir [GenericParam<'hir>]§predicates: &'hir [WherePredicate<'hir>]§has_where_clause_predicates: bool§where_clause_span: Span§span: Span

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impl<'hir> Generics<'hir>

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pub const fn empty() -> &'hir Generics<'hir>

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pub fn get_named(&self, name: Symbol) -> Option<&GenericParam<'hir>>

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pub fn span_for_lifetime_suggestion(&self) -> Option<Span>

If there are generic parameters, return where to introduce a new one.

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pub fn span_for_param_suggestion(&self) -> Option<Span>

If there are generic parameters, return where to introduce a new one.

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pub fn tail_span_for_predicate_suggestion(&self) -> Span

Span where further predicates would be suggested, accounting for trailing commas, like in fn foo<T>(t: T) where T: Foo, so we don’t suggest two trailing commas.

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pub fn add_where_or_trailing_comma(&self) -> &'static str

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pub fn bounds_for_param( &self, param_def_id: LocalDefId ) -> impl Iterator<Item = &WhereBoundPredicate<'hir>>

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pub fn outlives_for_param( &self, param_def_id: LocalDefId ) -> impl Iterator<Item = &WhereRegionPredicate<'_>>

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pub fn bounds_span_for_suggestions( &self, param_def_id: LocalDefId ) -> Option<Span>

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fn span_for_predicate_removal(&self, pos: usize) -> Span

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pub fn span_for_bound_removal( &self, predicate_pos: usize, bound_pos: usize ) -> Span

Trait Implementations§

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impl<'hir> Clone for Generics<'hir>

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fn clone(&self) -> Generics<'hir>

Returns a copy 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<'hir> Debug for Generics<'hir>

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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<'hir, __CTX> HashStable<__CTX> for Generics<'hir>
where __CTX: HashStableContext,

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fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

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impl<'hir> Copy for Generics<'hir>

Auto Trait Implementations§

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impl<'hir> RefUnwindSafe for Generics<'hir>

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impl<'hir> !Send for Generics<'hir>

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impl<'hir> !Sync for Generics<'hir>

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impl<'hir> Unpin for Generics<'hir>

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impl<'hir> UnwindSafe for Generics<'hir>

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T
where T: Copy,

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fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T

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fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T> ) -> &'a mut [T]

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

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

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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 T
where U: From<T>,

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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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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 T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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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: 56 bytes