pub enum Pat {
}
Expand description
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
sourceimpl From<PatTupleStruct> for Pat
impl From<PatTupleStruct> for Pat
sourcefn from(e: PatTupleStruct) -> Pat
fn from(e: PatTupleStruct) -> Pat
sourceimpl From<PatVerbatim> for Pat
impl From<PatVerbatim> for Pat
sourcefn from(e: PatVerbatim) -> Pat
fn from(e: PatVerbatim) -> Pat
sourceimpl ToTokens for Pat
impl ToTokens for Pat
sourcefn to_tokens(&self, tokens: &mut TokenStream)
fn to_tokens(&self, tokens: &mut TokenStream)
sourcefn into_token_stream(self) -> TokenStreamwhere
Self: Sized,
fn into_token_stream(self) -> TokenStreamwhere
Self: Sized,
impl Eq for Pat
impl StructuralEq for Pat
impl StructuralPartialEq for Pat
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
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
sourceimpl<T> Spanned for Twhere
T: ToTokens,
impl<T> Spanned for Twhere
T: ToTokens,
sourcefn span(&self) -> Span
fn span(&self) -> Span
Span
covering the complete contents of this syntax tree
node, or Span::call_site()
if this node is empty. Read more