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 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>.

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

Lifetime(PredicateLifetime)

[−] Expand description

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

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

Eq(PredicateEq)

[−] Expand description

An equality predicate in a where clause (unsupported).

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

Trait Implementations

impl Synom for WherePredicate

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fn parse(i: Cursor) -> PResult<Self>

fn description() -> Option<&'static str>

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A short name of the type being parsed.

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 From<PredicateType> for WherePredicate

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fn from(e: PredicateType) -> WherePredicate

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Performs the conversion.

impl From<PredicateLifetime> for WherePredicate

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fn from(e: PredicateLifetime) -> WherePredicate

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Performs the conversion.

impl From<PredicateEq> for WherePredicate

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fn from(e: PredicateEq) -> WherePredicate

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Performs the conversion.

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.

fn into_tokens(self) -> Tokens

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Convert self directly into a Tokens object.