Struct syn::PredicateType

source ·
pub struct PredicateType {
    pub lifetimes: Option<BoundLifetimes>,
    pub bounded_ty: Type,
    pub colon_token: Colon,
    pub bounds: Punctuated<TypeParamBound, Add>,
}
Expand description

A type predicate in a where clause: for<'c> Foo<'c>: Trait<'c>.

This type is available only if Syn is built with the "derive" or "full" feature.

Fields§

§lifetimes: Option<BoundLifetimes>

Any lifetimes from a for binding

§bounded_ty: Type

The type being bounded

§colon_token: Colon§bounds: Punctuated<TypeParamBound, Add>

Trait and lifetime bounds (Clone+Send+'static)

Trait Implementations§

Converts to this type from the input type.
Write self to the given TokenStream. Read more
Convert self directly into a TokenStream object. Read more
Convert self directly into a TokenStream object. 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

Returns the argument unchanged.

Calls U::from(self).

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

Returns a Span covering the complete contents of this syntax tree node, or Span::call_site() if this node is empty.
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.