pub struct NoneGroup(pub Group);
Expand description
A opaque group of tokens within a None
Tuple Fields§
§0: Group
Trait Implementations§
Source§impl GroupDelimiter for NoneGroup
impl GroupDelimiter for NoneGroup
Source§impl Parser for NoneGroup
impl Parser for NoneGroup
Source§fn parser(
tokens: &mut ShadowCountedIter<'_, <TokenStream as IntoIterator>::IntoIter>,
) -> Result<NoneGroup, Error>
fn parser( tokens: &mut ShadowCountedIter<'_, <TokenStream as IntoIterator>::IntoIter>, ) -> Result<NoneGroup, Error>
The actual parsing function that must be implemented. This mutates the
tokens
iterator directly. It should not be called from user code except for implementing
parsers itself and then only when the rules below are followed. Read moreSource§impl ToTokens for NoneGroup
impl ToTokens for NoneGroup
Source§fn to_tokens(&self, tokens: &mut TokenStream)
fn to_tokens(&self, tokens: &mut TokenStream)
Write
&self
to the given TokenStream
.Source§fn to_token_iter(
&self,
) -> ShadowCountedIter<'_, <TokenStream as IntoIterator>::IntoIter> ⓘ
fn to_token_iter( &self, ) -> ShadowCountedIter<'_, <TokenStream as IntoIterator>::IntoIter> ⓘ
Convert
&self
into a TokenIter
object.Source§fn into_token_iter<'a>(
self,
) -> ShadowCountedIter<'a, <TokenStream as IntoIterator>::IntoIter> ⓘwhere
Self: Sized,
fn into_token_iter<'a>(
self,
) -> ShadowCountedIter<'a, <TokenStream as IntoIterator>::IntoIter> ⓘwhere
Self: Sized,
Convert
self
into a TokenIter
object.Source§fn to_token_stream(&self) -> TokenStream
fn to_token_stream(&self) -> TokenStream
Convert
&self
into a TokenStream
object.Source§fn into_token_stream(self) -> TokenStreamwhere
Self: Sized,
fn into_token_stream(self) -> TokenStreamwhere
Self: Sized,
Convert
self
into a TokenStream
object.Auto Trait Implementations§
impl Freeze for NoneGroup
impl RefUnwindSafe for NoneGroup
impl !Send for NoneGroup
impl !Sync for NoneGroup
impl Unpin for NoneGroup
impl UnwindSafe for NoneGroup
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> Parse for Twhere
T: Parser,
impl<T> Parse for Twhere
T: Parser,
Source§fn parse(
tokens: &mut ShadowCountedIter<'_, <TokenStream as IntoIterator>::IntoIter>,
) -> Result<Self, Error>
fn parse( tokens: &mut ShadowCountedIter<'_, <TokenStream as IntoIterator>::IntoIter>, ) -> Result<Self, Error>
This is the user facing API to parse grammatical entities. Calls a
parser()
within a
transaction. Commits changes on success and returns the parsed value. Read moreSource§fn parse_all(
tokens: &mut ShadowCountedIter<'_, <TokenStream as IntoIterator>::IntoIter>,
) -> Result<Self, Error>
fn parse_all( tokens: &mut ShadowCountedIter<'_, <TokenStream as IntoIterator>::IntoIter>, ) -> Result<Self, Error>
Exhaustive parsing within a transaction. This is a convenience method that implies a
EndOfStream
at the end. Thus it will error if parsing is not exhaustive. Read moreSource§fn parse_with<T>(
tokens: &mut ShadowCountedIter<'_, <TokenStream as IntoIterator>::IntoIter>,
f: impl FnOnce(Self, &mut ShadowCountedIter<'_, <TokenStream as IntoIterator>::IntoIter>) -> Result<T, Error>,
) -> Result<T, Error>
fn parse_with<T>( tokens: &mut ShadowCountedIter<'_, <TokenStream as IntoIterator>::IntoIter>, f: impl FnOnce(Self, &mut ShadowCountedIter<'_, <TokenStream as IntoIterator>::IntoIter>) -> Result<T, Error>, ) -> Result<T, Error>
Parse a value in a transaction, pass it to a
FnOnce(Self, &mut TokenIter) -> Result<T>
closure which
creates a new result or returns an Error. Read more