Enum syn::punctuated::Pair
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pub enum Pair<T, P> { Punctuated(T, P), End(T), }
A single syntax tree node of type T
followed by its trailing punctuation
of type P
if any.
Refer to the module documentation for details about punctuated sequences.
Variants
Punctuated(T, P)
End(T)
Methods
impl<T, P> Pair<T, P>
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pub fn into_value(self) -> T
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Extracts the syntax tree node from this punctuated pair, discarding the following punctuation.
ⓘImportant traits for &'a mut Rpub fn value(&self) -> &T
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Borrows the syntax tree node from this punctuated pair.
ⓘImportant traits for &'a mut Rpub fn value_mut(&mut self) -> &mut T
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Mutably borrows the syntax tree node from this punctuated pair.
pub fn punct(&self) -> Option<&P>
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Borrows the punctuation from this punctuated pair, unless this pair is the final one and there is no trailing punctuation.
pub fn new(t: T, d: Option<P>) -> Self
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Creates a punctuated pair out of a syntax tree node and an optional following punctuation.
pub fn into_tuple(self) -> (T, Option<P>)
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Produces this punctuated pair as a tuple of syntax tree node and optional following punctuation.
Trait Implementations
impl<T, P> ToTokens for Pair<T, P> where
T: ToTokens,
P: ToTokens,
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T: ToTokens,
P: ToTokens,
fn to_tokens(&self, tokens: &mut TokenStream)
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Write self
to the given TokenStream
. Read more
fn into_token_stream(self) -> TokenStream
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Convert self
directly into a TokenStream
object. Read more
impl<T, P> FromIterator<Pair<T, P>> for Punctuated<T, P>
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fn from_iter<I: IntoIterator<Item = Pair<T, P>>>(i: I) -> Self
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Creates a value from an iterator. Read more
impl<T, P> Extend<Pair<T, P>> for Punctuated<T, P>
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fn extend<I: IntoIterator<Item = Pair<T, P>>>(&mut self, i: I)
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Extends a collection with the contents of an iterator. Read more