Enum rustc_expand::mbe::macro_parser::ParseResult
source · [−]pub(crate) enum ParseResult<T> {
Success(T),
Failure(Token, &'static str),
Error(Span, String),
ErrorReported,
}Expand description
Represents the possible results of an attempted parse.
Variants
Success(T)
Parsed successfully.
Failure(Token, &'static str)
Arm failed to match. If the second parameter is token::Eof, it indicates an unexpected
end of macro invocation. Otherwise, it indicates that no rules expected the given token.
Error(Span, String)
Fatal error (malformed macro?). Abort compilation.
ErrorReported
Auto Trait Implementations
impl<T> !RefUnwindSafe for ParseResult<T>
impl<T> !Send for ParseResult<T>
impl<T> !Sync for ParseResult<T>
impl<T> Unpin for ParseResult<T>where
T: Unpin,
impl<T> !UnwindSafe for ParseResult<T>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Layout
Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.