Struct Punctuated

pub struct Punctuated<T, P> {
    inner: Vec<(T, P)>,
    last: Option<Box<T>>,
}

A punctuated sequence of values of type T separated by punctuation of type P

Fields

inner: Vec<(T, P)>

last: Option<Box<T>>

Implementations

impl<T, P> Punctuated<T, P>

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

Determines whether this punctuated sequence is empty, meaning it contains no syntax tree nodes or punctuation.

pub fn push_value(&mut self, value: T)

Appends a syntax tree node onto the end of this punctuated sequence. The sequence must already have a trailing punctuation, or be empty.

Panics

Panics if the sequence is nonempty and does not already have a trailing punctuation.

pub fn empty_or_trailing(&self) -> bool

Returns true if either this Punctuated is empty, or it has a trailing punctuation.

Equivalent to punctuated.is_empty() || punctuated.trailing_punct().

pub fn trailing_punct(&self) -> bool

Determines whether this punctuated sequence ends with a trailing punctuation.

pub fn into_values(self) -> Vec<T>

Trait Implementations

impl<T, P> From<Vec<(T, P)>> for Punctuated<T, P>

fn from(inner: Vec<(T, P)>) -> Self

Converts to this type from the input type.