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>,
}
Expand description

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>parent_count: usizeparams: Vec<GenericParamDef>param_def_id_to_index: FxHashMap<DefId, u32>

Reverse map to the index field of each GenericParamDef.

has_self: boolhas_late_bound_regions: Option<Span>

Implementations

Returns the GenericParamDef with the given index.

Returns the GenericParamDef associated with this EarlyBoundRegion.

Returns the GenericParamDef associated with this ParamTy.

Returns the GenericParamDef associated with this ParamConst.

Returns true if params has impl Trait.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

This method turns the parameters of a DepNodeConstructor into an opaque Fingerprint to be used in DepNode. Not all DepNodeParams support being turned into a Fingerprint (they don’t need to if the corresponding DepNode is anonymous). Read more

This method tries to recover the query key from the given DepNode, something which is needed when forcing DepNodes during red-green evaluation. The query system will only call this method if fingerprint_style() is not FingerprintStyle::Opaque. It is always valid to return None here, in which case incremental compilation will treat the query as having changed instead of forcing it. Read more

Performs the conversion.

Performs the conversion.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion 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: 88 bytes