[][src]Enum syntax::ext::tt::macro_parser::NamedMatch

pub enum NamedMatch {
    MatchedSeq(Rc<Vec<NamedMatch>>, DelimSpan),
    MatchedNonterminal(Rc<Nonterminal>),
}
🔬 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?

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 MatchedNonterminals in the NamedMatch have the same nonterminal 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 MatchedNonterminals, 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::TTSeqs in the originating token tree it was derived from.

Variants

🔬 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?

🔬 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?

Trait Implementations

impl Debug for NamedMatch
[src]

Formats the value using the given formatter. Read more

impl Clone for NamedMatch
[src]

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Auto Trait Implementations

impl !Send for NamedMatch

impl !Sync for NamedMatch

Blanket Implementations

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

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

🔬 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> From for T
[src]

Performs the conversion.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

🔬 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 R

Immutably borrows from an owned value. Read more

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.

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

Important traits for &'a mut R

Mutably borrows from an owned value. Read more

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

🔬 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

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