Enum syn::WherePredicate

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

[−] Expand description

A single predicate in a where clause

Variants

BoundPredicate(WhereBoundPredicate)

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

RegionPredicate(WhereRegionPredicate)

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

EqPredicate(WhereEqPredicate)

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An equality predicate (unsupported)

Trait Implementations

impl ToTokens for WherePredicate

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fn to_tokens(&self, tokens: &mut Tokens)

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Write self to the given Tokens.

impl Debug for WherePredicate

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

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Formats the value using the given formatter.

impl Clone for WherePredicate

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fn clone(&self) -> WherePredicate

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Returns a copy of the value.

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

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Performs copy-assignment from source.

impl Eq for WherePredicate

impl PartialEq for WherePredicate

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

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

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

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This method tests for !=.

impl Hash for WherePredicate

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

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Feeds this value into the given [Hasher].

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

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