Enum syn::Pat [−][src]
A pattern in a local binding, function signature, match expression, or various other places.
This type is available only if Syn is built with the "full"
feature.
Syntax tree enum
This type is a syntax tree enum.
Variants
Box(PatBox)
A box pattern: box v
.
Ident(PatIdent)
A pattern that binds a new variable: ref mut binding @ SUBPATTERN
.
Lit(PatLit)
A literal pattern: 0
.
This holds an Expr
rather than a Lit
because negative numbers
are represented as an Expr::Unary
.
Macro(PatMacro)
A macro in pattern position.
Or(PatOr)
A pattern that matches any one of a set of cases.
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.
Range(PatRange)
A range pattern: 1..=2
.
Reference(PatReference)
A reference pattern: &mut var
.
Rest(PatRest)
The dots in a tuple or slice pattern: [0, 1, ..]
Slice(PatSlice)
A dynamically sized slice pattern: [a, b, ref i @ .., y, z]
.
Struct(PatStruct)
A struct or struct variant pattern: Variant { x, y, .. }
.
Tuple(PatTuple)
A tuple pattern: (a, b)
.
TupleStruct(PatTupleStruct)
A tuple struct or tuple variant pattern: Variant(x, y, .., z)
.
Type(PatType)
A type ascription pattern: foo: f64
.
Verbatim(TokenStream)
Tokens in pattern position not interpreted by Syn.
Wild(PatWild)
A pattern that matches any value: _
.
Trait Implementations
impl Clone for Pat
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fn clone(&self) -> Self
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pub fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Debug for Pat
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impl Eq for Pat
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impl From<PatBox> for Pat
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impl From<PatIdent> for Pat
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impl From<PatLit> for Pat
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impl From<PatMacro> for Pat
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impl From<PatOr> for Pat
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impl From<PatPath> for Pat
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impl From<PatRange> for Pat
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impl From<PatReference> for Pat
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fn from(e: PatReference) -> Pat
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impl From<PatRest> for Pat
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impl From<PatSlice> for Pat
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impl From<PatStruct> for Pat
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impl From<PatTuple> for Pat
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impl From<PatTupleStruct> for Pat
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fn from(e: PatTupleStruct) -> Pat
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impl From<PatType> for Pat
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impl From<PatWild> for Pat
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impl Hash for Pat
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fn hash<H>(&self, state: &mut H) where
H: Hasher,
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H: Hasher,
pub fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
impl Parse for Pat
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fn parse(input: ParseStream<'_>) -> Result<Self>
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impl PartialEq<Pat> for Pat
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impl ToTokens for Pat
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fn to_tokens(&self, tokens: &mut TokenStream)
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pub fn to_token_stream(&self) -> TokenStream
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pub fn into_token_stream(self) -> TokenStream
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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,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> Spanned for T where
T: Spanned + ?Sized,
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T: Spanned + ?Sized,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,