[−][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 Synom for Pat`
[src]

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

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

A short name of the type being parsed. Read more

`impl Debug for Pat`
[src]

`fn fmt(&self, f: &mut Formatter) -> Result`
[src]

Formats the value using the given formatter. Read more

`impl Eq for Pat`
[src]

`impl PartialEq for Pat`
[src]

`fn eq(&self, other: &Pat) -> bool`
[src]

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

`fn ne(&self, other: &Pat) -> bool`
[src]

This method tests for !=.

`impl Hash for Pat`
[src]

`fn hash<H: Hasher>(&self, state: &mut H)`
[src]

Feeds this value into the given [Hasher]. Read more

`fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher,`
1.3.0
[src]

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

`impl Clone for Pat`
[src]

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

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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

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

Performs the conversion.

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

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

Performs the conversion.

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

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

Performs the conversion.

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

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

Performs the conversion.

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

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

Performs the conversion.

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

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

Performs the conversion.

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

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

Performs the conversion.

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

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

Performs the conversion.

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

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

Performs the conversion.

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

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

Performs the conversion.

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

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

Performs the conversion.

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

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

Performs the conversion.

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

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

Performs the conversion.

`impl ToTokens for Pat`
[src]

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

Write self to the given TokenStream. Read more

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

Convert self directly into a TokenStream object. Read more

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

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

Performs the conversion.

Auto Trait Implementations

`impl !Send for Pat`

`impl !Sync for Pat`

Blanket Implementations

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

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

Returns a Span covering the complete contents of this syntax tree node, or [Span::call_site()] if this node is empty. Read more

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

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

Performs the conversion.

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

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

Performs the conversion.

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

`type Owned = T`

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

Creates owned data from borrowed data, usually by cloning. Read more

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

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

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

`type Error = !`

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

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

🔬 This is a nightly-only experimental API. (try_from)

Performs the conversion.

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

ⓘImportant traits for &'a mut W
Important traits for &'a mut W
`impl<'a, W> Write for &'a mut W where W: Write + ?Sized, impl<'a, R> Read for &'a mut R where R: Read + ?Sized, impl<'a, I> Iterator for &'a mut I where I: Iterator + ?Sized, type Item = ::Item;`
`fn borrow(&self) -> &T`
[src]

Immutably borrows from an owned value. Read more

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

ⓘImportant traits for &'a mut W
Important traits for &'a mut W
`impl<'a, W> Write for &'a mut W where W: Write + ?Sized, impl<'a, R> Read for &'a mut R where R: Read + ?Sized, impl<'a, I> Iterator for &'a mut I where I: Iterator + ?Sized, type Item = ::Item;`
`fn borrow_mut(&mut self) -> &mut T`
[src]

Mutably borrows from an owned value. Read more

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

`type Error = >::Error`

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

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

🔬 This is a nightly-only experimental API. (try_from)

Performs the conversion.

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

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

🔬 This is a nightly-only experimental API. (get_type_id)

this method will likely be replaced by an associated static

Gets the TypeId of self. Read more

`impl<E> SpecializationError for E`
[src]

`fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where T: ?Sized,`
[src]

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S is the encoder/decoder state type, T is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more

[−][src]Enum syn::Pat

Syntax tree enum

Variants

Trait Implementations

impl Synom for Pat[src]

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

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

impl Debug for Pat[src]

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

impl Eq for Pat[src]

impl PartialEq for Pat[src]

fn eq(&self, other: &Pat) -> bool[src]

fn ne(&self, other: &Pat) -> bool[src]

impl Hash for Pat[src]

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

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher, 1.3.0[src]

impl Clone for Pat[src]

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

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

impl From<PatWild> for Pat[src]

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

impl From<PatIdent> for Pat[src]

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

impl From<PatStruct> for Pat[src]

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

impl From<PatTupleStruct> for Pat[src]

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

impl From<PatPath> for Pat[src]

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

impl From<PatTuple> for Pat[src]

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

impl From<PatBox> for Pat[src]

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

impl From<PatRef> for Pat[src]

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

impl From<PatLit> for Pat[src]

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

impl From<PatRange> for Pat[src]

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

impl From<PatSlice> for Pat[src]

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

impl From<PatMacro> for Pat[src]

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

impl From<PatVerbatim> for Pat[src]

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

impl ToTokens for Pat[src]

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

fn into_token_stream(self) -> TokenStream[src]

impl From<Pat> for FnArg[src]

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

Auto Trait Implementations

impl !Send for Pat

impl !Sync for Pat

Blanket Implementations

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

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

impl<T> From for T[src]

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

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

fn into(self) -> U[src]

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

type Owned = T

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

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

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

type Error = !

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

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

ⓘImportant traits for &'a mut WImportant traits for &'a mut Wimpl<'a, W> Write for &'a mut W where W: Write + ?Sized, impl<'a, R> Read for &'a mut R where R: Read + ?Sized, impl<'a, I> Iterator for &'a mut I where I: Iterator + ?Sized, type Item = <I as Iterator>::Item;fn borrow(&self) -> &T[src]

Important traits for &'a mut W

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

Important traits for &'a mut W

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

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

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

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

fn get_type_id(&self) -> TypeId[src]

impl<E> SpecializationError for E[src]

fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where T: ?Sized, [src]

impl<T> Erased for T[src]

`impl Synom for Pat`
[src]

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

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

`impl Debug for Pat`
[src]

`fn fmt(&self, f: &mut Formatter) -> Result`
[src]

`impl Eq for Pat`
[src]

`impl PartialEq for Pat`
[src]

`fn eq(&self, other: &Pat) -> bool`
[src]

`fn ne(&self, other: &Pat) -> bool`
[src]

`impl Hash for Pat`
[src]

`fn hash<H: Hasher>(&self, state: &mut H)`
[src]

`fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher,`
1.3.0
[src]

`impl Clone for Pat`
[src]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

`impl ToTokens for Pat`
[src]

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

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

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

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

`impl !Send for Pat`

`impl !Sync for Pat`

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

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

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

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

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

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

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

`type Owned = T`

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

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

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

`type Error = !`

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

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

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

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

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

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

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

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

`impl<E> SpecializationError for E`
[src]

`fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where T: ?Sized,`
[src]

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

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

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

`impl<T> Erased for T`