Struct rustc::ty::Generics

pub struct Generics {
    pub parent: Option<DefId>,
    pub parent_count: usize,
    pub params: Vec<GenericParamDef>,
    pub param_def_id_to_index: FxHashMap<DefId, u32>,
    pub has_self: bool,
    pub has_late_bound_regions: Option<Span>,
}

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Information about the formal type/lifetime parameters associated with an item or method. Analogous to hir::Generics.

The ordering of parameters is the same as in Subst (excluding child generics): Self (optionally), Lifetime params..., Type params...

Fields

parent: Option<DefId>

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parent_count: usize

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params: Vec<GenericParamDef>

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param_def_id_to_index: FxHashMap<DefId, u32>

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Reverse map to the index field of each GenericParamDef

has_self: bool

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has_late_bound_regions: Option<Span>

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Methods

impl<'a, 'gcx, 'tcx> Generics

pub fn count(&self) -> usize

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pub fn own_counts(&self) -> GenericParamCount

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pub fn requires_monomorphization(&self, tcx: TyCtxt<'a, 'gcx, 'tcx>) -> bool

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pub fn region_param(     &'tcx self,     param: &EarlyBoundRegion,     tcx: TyCtxt<'a, 'gcx, 'tcx> ) -> &'tcx GenericParamDef

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pub fn type_param(     &'tcx self,     param: &ParamTy,     tcx: TyCtxt<'a, 'gcx, 'tcx> ) -> &'tcx GenericParamDef

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Returns the GenericParamDef associated with this ParamTy.

Trait Implementations

impl<'a> HashStable<StableHashingContext<'a>> for Generics

fn hash_stable<W: StableHasherResult>(     &self,     hcx: &mut StableHashingContext<'a>,     hasher: &mut StableHasher<W> )

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impl Clone for Generics

fn clone(&self) -> Generics

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Generics

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

Formats the value using the given formatter.

impl Encodable for Generics

fn encode<__S: Encoder>(&self, s: &mut __S) -> Result<(), __S::Error>

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impl Decodable for Generics

fn decode<__D: Decoder>(d: &mut __D) -> Result<Generics, __D::Error>

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