[−][src]Enum syntax::ext::tt::macro_parser::NamedMatch
NamedMatch
is a pattern-match result for a single token::MATCH_NONTERMINAL
:
so it is associated with a single ident in a parse, and all
MatchedNonterminal
s in the NamedMatch
have the same non-terminal type
(expr, item, etc). Each leaf in a single NamedMatch
corresponds to a
single token::MATCH_NONTERMINAL
in the TokenTree
that produced it.
The in-memory structure of a particular NamedMatch
represents the match
that occurred when a particular subset of a matcher was applied to a
particular token tree.
The width of each MatchedSeq
in the NamedMatch
, and the identity of
the MatchedNonterminal
s, will depend on the token tree it was applied
to: each MatchedSeq
corresponds to a single TTSeq
in the originating
token tree. The depth of the NamedMatch
structure will therefore depend
only on the nesting depth of ast::TTSeq
s in the originating
token tree it was derived from.
Variants
MatchedSeq(Lrc<SmallVec<[NamedMatch; 4]>>, DelimSpan)
MatchedNonterminal(Lrc<Nonterminal>)
Trait Implementations
impl Clone for NamedMatch
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fn clone(&self) -> NamedMatch
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fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl Debug for NamedMatch
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Auto Trait Implementations
impl !Send for NamedMatch
impl !Sync for NamedMatch
Blanket Implementations
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> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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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.
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>,
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>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<E> SpecializationError for E
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default fn not_found<S, T>(
trait_name: &'static str,
method_name: &'static str
) -> E where
T: ?Sized,
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trait_name: &'static str,
method_name: &'static str
) -> E where
T: ?Sized,
impl<T> Send for T where
T: ?Sized,
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T: ?Sized,
impl<T> Sync for T where
T: ?Sized,
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T: ?Sized,