Enum syntax::ast::WherePredicate

pub enum WherePredicate {
    BoundPredicate(WhereBoundPredicate),
    RegionPredicate(WhereRegionPredicate),
    EqPredicate(WhereEqPredicate),
}

A single predicate in a where clause

Variants

BoundPredicate(WhereBoundPredicate)

A type binding, e.g. for<'c> Foo: Send+Clone+'c

RegionPredicate(WhereRegionPredicate)

A lifetime predicate, e.g. 'a: 'b+'c

EqPredicate(WhereEqPredicate)

An equality predicate (unsupported)

Methods

impl WherePredicate

pub fn span(&self) -> Span

Trait Implementations

impl Clone for WherePredicate

fn clone(&self) -> WherePredicate

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for WherePredicate

fn eq(&self, other: &WherePredicate) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &WherePredicate) -> bool

This method tests for !=.

impl Eq for WherePredicate

impl Encodable for WherePredicate

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

impl Decodable for WherePredicate

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

impl Hash for WherePredicate

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where     H: Hasher,

Feeds a slice of this type into the given [Hasher].

impl Debug for WherePredicate

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

Formats the value using the given formatter.