Struct MetaItemListParser

pub struct MetaItemListParser<'a> {
    sub_parsers: Vec<MetaItemOrLitParser<'a>>,
    pub span: Span,
}

Fields

sub_parsers: Vec<MetaItemOrLitParser<'a>>

span: Span

Implementations

impl<'a> MetaItemListParser<'a>

fn new(delim: &'a DelimArgs, dcx: DiagCtxtHandle<'a>) -> MetaItemListParser<'a>

fn new_tts( tts: TokenStreamIter<'a>, span: Span, dcx: DiagCtxtHandle<'a>, ) -> Self

pub fn mixed<'s>( &'s self, ) -> impl Iterator<Item = &'s MetaItemOrLitParser<'a>> + 's

Lets you pick and choose as what you want to parse each element in the list

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn all_word_list<'s>(&'s self) -> Option<Vec<(Ident, &'s ArgParser<'a>)>>

Asserts that every item in the list is another list starting with a word.

See MetaItemParser::word for examples of words.

pub fn all_path_list<'s>( &'s self, ) -> Option<Vec<(PathParser<'a>, &'s ArgParser<'a>)>>

Asserts that every item in the list is another list starting with a full path.

See MetaItemParser::path for examples of paths.

pub fn single(&self) -> Option<&MetaItemOrLitParser<'a>>

Returns Some if the list contains only a single element.

Inside the Some is the parser to parse this single element.

Trait Implementations

impl<'a> Clone for MetaItemListParser<'a>

fn clone(&self) -> MetaItemListParser<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for MetaItemListParser<'a>

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

Formats the value using the given formatter.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 32 bytes