Enum syn::WherePredicate

[−] Show declaration

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

[−] Expand description

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)

[−] Expand description

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

Lifetime(PredicateLifetime)

[−] Expand description

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

Eq(PredicateEq)

[−] Expand description

An equality predicate in a where clause (unsupported).

Trait Implementations

impl Clone for WherePredicate[+]

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fn clone(&self) -> WherePredicate[−]

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Debug for WherePredicate[+]

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fn fmt(&self, f: &mut Formatter<'_>) -> Result[−]

Formats the value using the given formatter.

impl Eq for WherePredicate

impl From<PredicateEq> for WherePredicate[+]

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fn from(e: PredicateEq) -> WherePredicate[−]

Performs the conversion.

impl From<PredicateLifetime> for WherePredicate[+]

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fn from(e: PredicateLifetime) -> WherePredicate[−]

Performs the conversion.

impl From<PredicateType> for WherePredicate[+]

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fn from(e: PredicateType) -> WherePredicate[−]

Performs the conversion.

impl Hash for WherePredicate[+]

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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 Parse for WherePredicate[+]

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

impl PartialEq<WherePredicate> for WherePredicate[+]

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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 StructuralEq for WherePredicate

impl StructuralPartialEq for WherePredicate

impl ToTokens for WherePredicate[+]

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fn to_tokens(&self, tokens: &mut TokenStream)[−]

Write self to the given TokenStream.

fn to_token_stream(&self) -> TokenStream[−]

Convert self directly into a TokenStream object.

fn into_token_stream(self) -> TokenStream[−]

Convert self directly into a TokenStream object.