[−][src]Enum syn::Pat

pub enum Pat {
    Wild(PatWild),
    Ident(PatIdent),
    Struct(PatStruct),
    TupleStruct(PatTupleStruct),
    Path(PatPath),
    Tuple(PatTuple),
    Box(PatBox),
    Ref(PatRef),
    Lit(PatLit),
    Range(PatRange),
    Slice(PatSlice),
    Macro(PatMacro),
    Verbatim(PatVerbatim),
}

A pattern in a local binding, function signature, match expression, or various other places.

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

Syntax tree enum

This type is a syntax tree enum.

Variants

Wild(PatWild)

A pattern that matches any value: _.

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

Ident(PatIdent)

A pattern that binds a new variable: ref mut binding @ SUBPATTERN.

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

Struct(PatStruct)

A struct or struct variant pattern: Variant { x, y, .. }.

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

TupleStruct(PatTupleStruct)

A tuple struct or tuple variant pattern: Variant(x, y, .., z).

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

Path(PatPath)

A path pattern like Color::Red, optionally qualified with a self-type.

Unquailfied path patterns can legally refer to variants, structs, constants or associated constants. Quailfied path patterns like <A>::B::C and <A as Trait>::B::C can only legally refer to associated constants.

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

Tuple(PatTuple)

A tuple pattern: (a, b).

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

Box(PatBox)

A box pattern: box v.

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

Ref(PatRef)

A reference pattern: &mut (first, second).

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

Lit(PatLit)

A literal pattern: 0.

This holds an Expr rather than a Lit because negative numbers are represented as an Expr::Unary.

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

Range(PatRange)

A range pattern: 1..=2.

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

Slice(PatSlice)

A dynamically sized slice pattern: [a, b, i.., y, z].

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

Macro(PatMacro)

A macro in expression position.

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

Verbatim(PatVerbatim)

Tokens in pattern position not interpreted by Syn.

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

Trait Implementations

`impl Clone for Pat`[src]

`fn clone(&self) -> Pat`[src]

`fn clone_from(&mut self, source: &Self)`1.0.0[src]

`impl From<Pat> for FnArg`[src]

`fn from(e: Pat) -> FnArg`[src]

`impl From<PatBox> for Pat`[src]

`fn from(e: PatBox) -> Pat`[src]

`impl From<PatIdent> for Pat`[src]

`fn from(e: PatIdent) -> Pat`[src]

`impl From<PatLit> for Pat`[src]

`fn from(e: PatLit) -> Pat`[src]

`impl From<PatMacro> for Pat`[src]

`fn from(e: PatMacro) -> Pat`[src]

`impl From<PatPath> for Pat`[src]

`fn from(e: PatPath) -> Pat`[src]

`impl From<PatRange> for Pat`[src]

`fn from(e: PatRange) -> Pat`[src]

`impl From<PatRef> for Pat`[src]

`fn from(e: PatRef) -> Pat`[src]

`impl From<PatSlice> for Pat`[src]

`fn from(e: PatSlice) -> Pat`[src]

`impl From<PatStruct> for Pat`[src]

`fn from(e: PatStruct) -> Pat`[src]

`impl From<PatTuple> for Pat`[src]

`fn from(e: PatTuple) -> Pat`[src]

`impl From<PatTupleStruct> for Pat`[src]

`fn from(e: PatTupleStruct) -> Pat`[src]

`impl From<PatVerbatim> for Pat`[src]

`fn from(e: PatVerbatim) -> Pat`[src]

`impl From<PatWild> for Pat`[src]

`fn from(e: PatWild) -> Pat`[src]

`impl Synom for Pat`[src]

`fn parse(i: Cursor<'_>) -> PResult<'_, Self>`[src]

`fn description() -> Option<&'static str>`[src]

`impl ToTokens for Pat`[src]

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

`fn into_token_stream(self) -> TokenStream`[src]

Auto Trait Implementations

`impl !RefUnwindSafe for Pat`

`impl !Send for Pat`

`impl !Sync for Pat`

`impl Unpin for Pat`

`impl UnwindSafe for Pat`

Blanket Implementations

`impl<T> Any for T where T: 'static + ?Sized,` [src]

`fn type_id(&self) -> TypeId`[src]

`impl<T> Borrow<T> for T where T: ?Sized,` [src]

`fn borrow(&self) -> &T`[src]

`impl<T> BorrowMut<T> for T where T: ?Sized,` [src]

`fn borrow_mut(&mut self) -> &mut T`[src]

`impl<T> From<T> for T`[src]

`fn from(t: T) -> T`[src]

`impl<T, U> Into<U> for T where U: From<T>,` [src]

`fn into(self) -> U`[src]

`impl<T> Spanned for T where T: ToTokens,` [src]

`fn span(&Self) -> Span`[src]

`impl<T> ToOwned for T where T: Clone,` [src]

`type Owned = T`

The resulting type after obtaining ownership.

`fn to_owned(&self) -> T`[src]

`fn clone_into(&self, target: &mut T)`[src]

`impl<T, U> TryFrom<U> for T where U: Into<T>,` [src]

`type Error = Infallible`

The type returned in the event of a conversion error.

`fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`[src]

`impl<T, U> TryInto<U> for T where U: TryFrom<T>,` [src]

`type Error = <U as TryFrom<T>>::Error`

The type returned in the event of a conversion error.

`fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`[src]