pub struct Paren<T> { /* private fields */ }
Expand description
Parses a subexpression inside parentheses.
let answer: Paren<LitInt> = parse_quote!{ (42) };
assert_eq!(answer.into_inner(), LitInt::from(42));
ⓘ
let answer: Paren<LitInt> = parse_quote!{ 42 };
let answer: Paren<LitInt> = LitInt::from(43).into();
assert_eq!(
answer.to_token_stream().to_string(),
quote::quote!{(43)}.to_string(),
);
Implementations§
Trait Implementations§
source§impl<T: PartialEq> PartialEq for Paren<T>
impl<T: PartialEq> PartialEq for Paren<T>
source§impl<T: ToTokens> ToTokens for Paren<T>
impl<T: ToTokens> ToTokens for Paren<T>
source§fn to_tokens(&self, tokens: &mut TokenStream)
fn to_tokens(&self, tokens: &mut TokenStream)
source§fn to_token_stream(&self) -> TokenStream
fn to_token_stream(&self) -> TokenStream
source§fn into_token_stream(self) -> TokenStreamwhere
Self: Sized,
fn into_token_stream(self) -> TokenStreamwhere
Self: Sized,
impl<T: Copy> Copy for Paren<T>
impl<T: Eq> Eq for Paren<T>
impl<T> StructuralPartialEq for Paren<T>
Auto Trait Implementations§
impl<T> Freeze for Paren<T>where
T: Freeze,
impl<T> RefUnwindSafe for Paren<T>where
T: RefUnwindSafe,
impl<T> !Send for Paren<T>
impl<T> !Sync for Paren<T>
impl<T> Unpin for Paren<T>where
T: Unpin,
impl<T> UnwindSafe for Paren<T>where
T: UnwindSafe,
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> Spanned for Twhere
T: Spanned + ?Sized,
impl<T> Spanned for Twhere
T: Spanned + ?Sized,
source§fn span(&self) -> Span
fn span(&self) -> Span
Returns a
Span
covering the complete contents of this syntax tree
node, or Span::call_site()
if this node is empty.