Enum devise::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.

Tuple Fields of Wild

0: PatWild

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.

Tuple Fields of Ident

0: PatIdent

Struct(PatStruct)

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

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

Tuple Fields of Struct

0: PatStruct

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.

Tuple Fields of TupleStruct

0: PatTupleStruct

Path(PatPath)

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

Unqualified path patterns can legally refer to variants, structs, constants or associated constants. Qualified 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 Fields of Path

0: PatPath

Tuple(PatTuple)

A tuple pattern: (a, b).

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

Tuple Fields of Tuple

0: PatTuple

Box(PatBox)

A box pattern: box v.

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

Tuple Fields of Box

0: PatBox

Ref(PatRef)

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

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

Tuple Fields of Ref

0: PatRef

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.

Tuple Fields of Lit

0: PatLit

Range(PatRange)

A range pattern: 1..=2.

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

Tuple Fields of Range

0: PatRange

Slice(PatSlice)

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

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

Tuple Fields of Slice

0: PatSlice

Macro(PatMacro)

A macro in expression position.

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

Tuple Fields of Macro

0: PatMacro

Verbatim(PatVerbatim)

Tokens in pattern position not interpreted by Syn.

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

Tuple Fields of Verbatim

0: PatVerbatim

Trait Implementations

impl Clone for Pat

pub fn clone(&self) -> Pat

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Pat

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl From<Pat> for FnArg

pub fn from(e: Pat) -> FnArg

Performs the conversion.

impl From<PatBox> for Pat

pub fn from(e: PatBox) -> Pat

Performs the conversion.

impl From<PatIdent> for Pat

pub fn from(e: PatIdent) -> Pat

Performs the conversion.

impl From<PatLit> for Pat

pub fn from(e: PatLit) -> Pat

Performs the conversion.

impl From<PatMacro> for Pat

pub fn from(e: PatMacro) -> Pat

Performs the conversion.

impl From<PatPath> for Pat

pub fn from(e: PatPath) -> Pat

Performs the conversion.

impl From<PatRange> for Pat

pub fn from(e: PatRange) -> Pat

Performs the conversion.

impl From<PatRef> for Pat

pub fn from(e: PatRef) -> Pat

Performs the conversion.

impl From<PatSlice> for Pat

pub fn from(e: PatSlice) -> Pat

Performs the conversion.

impl From<PatStruct> for Pat

pub fn from(e: PatStruct) -> Pat

Performs the conversion.

impl From<PatTuple> for Pat

pub fn from(e: PatTuple) -> Pat

Performs the conversion.

impl From<PatTupleStruct> for Pat

pub fn from(e: PatTupleStruct) -> Pat

Performs the conversion.

impl From<PatVerbatim> for Pat

pub fn from(e: PatVerbatim) -> Pat

Performs the conversion.

impl From<PatWild> for Pat

pub fn from(e: PatWild) -> Pat

Performs the conversion.

impl Hash for Pat

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

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 Pat

pub fn parse(input: &ParseBuffer<'_>) -> Result<Pat, Error>

impl PartialEq<Pat> for Pat

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

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

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

This method tests for !=.

impl ToTokens for Pat

pub fn to_tokens(&self, tokens: &mut TokenStream)

Write self to the given TokenStream.

fn into_token_stream(self) -> TokenStream

Convert self directly into a TokenStream object.

impl Eq for Pat

impl StructuralEq for Pat

impl StructuralPartialEq for Pat