Struct rune::ast::Parenthesized

pub struct Parenthesized<T, S> {
    pub open: OpenParen,
    pub parenthesized: Vec<(T, Option<S>)>,
    pub close: CloseParen,
}

Parse something parenthesis, that is separated by ((T, S?)*).

Examples

use rune::{T, testing, ast};

testing::roundtrip::<ast::Parenthesized<ast::Expr, T![,]>>("(1, \"two\")");
testing::roundtrip::<ast::Parenthesized<ast::Expr, T![,]>>("(1, 2,)");
testing::roundtrip::<ast::Parenthesized<ast::Expr, T![,]>>("(1, 2, foo())");

Fields

open: OpenParen

The open parenthesis.

parenthesized: Vec<(T, Option<S>)>

Values in the type.

close: CloseParen

The close parenthesis.

Implementations

impl<T, S> Parenthesized<T, S>

pub fn is_empty(&self) -> bool

Test if empty.

pub fn len(&self) -> usize

Get the length of the parsed elements.

pub fn first(&self) -> Option<&(T, Option<S>)>

Get the first element.

pub fn last(&self) -> Option<&(T, Option<S>)>

Get the last element.

pub fn iter(&self) -> Iter<'_, (T, Option<S>)>

Iterate over elements.

pub fn iter_mut(&mut self) -> IterMut<'_, (T, Option<S>)>

Iterate mutably over elements.

pub fn as_slice(&self) -> &[(T, Option<S>)]

Get the values as a slice.

impl<T, S> Parenthesized<T, S> where
    T: Parse,
    S: Peek + Parse, 

pub fn parse_from_first(
    parser: &mut Parser<'_>,
    open: OpenParen,
    current: T
) -> Result<Self, ParseError>

Parse with the first element already specified.

Trait Implementations

impl<T: Clone, S: Clone> Clone for Parenthesized<T, S>

fn clone(&self) -> Parenthesized<T, S>

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug, S: Debug> Debug for Parenthesized<T, S>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Eq, S: Eq> Eq for Parenthesized<T, S>

impl<'a, T, S> IntoIterator for &'a Parenthesized<T, S>

type Item = &'a (T, Option<S>)

The type of the elements being iterated over.

type IntoIter = Iter<'a, (T, Option<S>)>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<'a, T, S> IntoIterator for &'a mut Parenthesized<T, S>

type Item = &'a mut (T, Option<S>)

The type of the elements being iterated over.

type IntoIter = IterMut<'a, (T, Option<S>)>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<T, S> IntoIterator for Parenthesized<T, S>

type Item = (T, Option<S>)

The type of the elements being iterated over.

type IntoIter = IntoIter<(T, Option<S>)>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<T, S> Parse for Parenthesized<T, S> where
    T: Parse,
    S: Peek + Parse, 

fn parse(parser: &mut Parser<'_>) -> Result<Self, ParseError>

Parse the current item from the parser.

impl<T: PartialEq, S: PartialEq> PartialEq<Parenthesized<T, S>> for Parenthesized<T, S>

fn eq(&self, other: &Parenthesized<T, S>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Parenthesized<T, S>) -> bool

This method tests for !=.

impl<T, S> Peek for Parenthesized<T, S>

fn peek(p: &mut Peeker<'_>) -> bool

Peek the parser for the given token.

impl<T, S> Spanned for Parenthesized<T, S>

fn span(&self) -> Span

Get the span of the type.

impl<T, S> StructuralEq for Parenthesized<T, S>

impl<T, S> StructuralPartialEq for Parenthesized<T, S>

impl<T, S> ToTokens for Parenthesized<T, S> where
    T: ToTokens,
    S: ToTokens, 

fn to_tokens(&self, context: &MacroContext, stream: &mut TokenStream)

Turn the current item into tokens.