# Enum syn::punctuated::Pair [−] [src]

    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)`

## Implementations

### `impl<T, P> Pair<T, P>` [src]

#### `pub fn into_value(self) -> T` [src]

Extracts the syntax tree node from this punctuated pair, discarding the following punctuation.

#### `pub fn value(&self) -> &T` [src]

Borrows the syntax tree node from this punctuated pair.

#### `pub fn value_mut(&mut self) -> &mut T` [src]

Mutably borrows the syntax tree node from this punctuated pair.

#### `pub fn punct(&self) -> Option<&P>` [src]

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` [src]

Creates a punctuated pair out of a syntax tree node and an optional following punctuation.

#### `pub fn into_tuple(self) -> (T, Option<P>)` [src]

Produces this punctuated pair as a tuple of syntax tree node and optional following punctuation.

## Trait Implementations

### `impl<T, P> Clone for Pair<T, P> where
T: Clone,
P: Clone,` [src]

#### `fn clone(&self) -> Self` [src]

Returns a copy of the value. Read more

#### `pub fn clone_from(&mut self, source: &Self)`1.0.0 [src]

Performs copy-assignment from `source`. Read more

### `impl<T, P> Extend<Pair<T, P>> for Punctuated<T, P>` [src]

#### `fn extend<I: IntoIterator<Item = Pair<T, P>>>(&mut self, i: I)` [src]

Extends a collection with the contents of an iterator. Read more

#### `pub fn extend_one(&mut self, item: A)` [src]

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

Extends a collection with exactly one element.

#### `pub fn extend_reserve(&mut self, additional: usize)` [src]

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

Reserves capacity in a collection for the given number of additional elements. Read more

### `impl<T, P> FromIterator<Pair<T, P>> for Punctuated<T, P>` [src]

#### `fn from_iter<I: IntoIterator<Item = Pair<T, P>>>(i: I) -> Self` [src]

Creates a value from an iterator. Read more

### `impl<T, P> ToTokens for Pair<T, P> where
T: ToTokens,
P: ToTokens,` [src]

#### `fn to_tokens(&self, tokens: &mut TokenStream)` [src]

Write `self` to the given `TokenStream`. Read more

#### `pub fn to_token_stream(&self) -> TokenStream` [src]

Convert `self` directly into a `TokenStream` object. Read more

#### `pub fn into_token_stream(self) -> TokenStream` [src]

Convert `self` directly into a `TokenStream` object. Read more

## Auto Trait Implementations

### `impl<T, P> RefUnwindSafe for Pair<T, P> where
P: RefUnwindSafe,
T: RefUnwindSafe,`

### `impl<T, P> Send for Pair<T, P> where
P: Send,
T: Send,`

### `impl<T, P> Sync for Pair<T, P> where
P: Sync,
T: Sync,`

### `impl<T, P> Unpin for Pair<T, P> where
P: Unpin,
T: Unpin,`

### `impl<T, P> UnwindSafe for Pair<T, P> where
P: UnwindSafe,
T: UnwindSafe,`

## Blanket Implementations

### `impl<T> Any for T where
T: 'static + ?Sized,` [src]

#### `pub fn type_id(&self) -> TypeId` [src]

Gets the `TypeId` of `self`. Read more

### `impl<T> Borrow<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow(&self) -> &T` [src]

Immutably borrows from an owned value. Read more

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

#### `pub fn borrow_mut(&mut self) -> &mut T` [src]

Mutably borrows from an owned value. Read more

### `impl<T> From<T> for T` [src]

#### `pub fn from(t: T) -> T` [src]

Performs the conversion.

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

#### `pub fn into(self) -> U` [src]

Performs the conversion.

### `impl<T> Spanned for T where
T: Spanned + ?Sized,` [src]

#### `pub fn span(&Self) -> Span` [src]

Returns a `Span` covering the complete contents of this syntax tree node, or `Span::call_site()` if this node is empty. Read more

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

#### `type Owned = T`

The resulting type after obtaining ownership.

#### `pub fn to_owned(&self) -> T` [src]

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

#### `pub fn clone_into(&self, target: &mut T)` [src]

🔬 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, U> TryFrom<U> for T where
U: Into<T>,` [src]

#### `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>` [src]

Performs the conversion.

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

#### `type Error = <U as TryFrom<T>>::Error`

The type returned in the event of a conversion error.

#### `pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>` [src]

Performs the conversion.