Enum syn::WherePredicate

pub enum WherePredicate {
    Type(PredicateType),
    Lifetime(PredicateLifetime),
    Eq(PredicateEq),
}

A single predicate in a where clause: T: Deserialize<'de>.

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

Syntax tree enum

This type is a syntax tree enum.

Variants

Type(PredicateType)

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

Lifetime(PredicateLifetime)

A lifetime predicate in a where clause: 'a: 'b + 'c.

Eq(PredicateEq)

An equality predicate in a where clause (unsupported).

Trait Implementations

impl From<PredicateEq> for WherePredicate

fn from(e: PredicateEq) -> WherePredicate

Converts to this type from the input type.

impl From<PredicateLifetime> for WherePredicate

fn from(e: PredicateLifetime) -> WherePredicate

Converts to this type from the input type.

impl From<PredicateType> for WherePredicate

fn from(e: PredicateType) -> WherePredicate

Converts to this type from the input type.

impl Parse for WherePredicate

fn parse(input: ParseStream<'_>) -> Result<Self>