Enum rustc_expand::mbe::macro_parser::ParseResult[−][src]

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)
Expand description

Parsed successfully.

Failure(Token, &'static str)
Expand description

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)
Expand description

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

impl<T> Any for T where
    T: 'static + ?Sized, [src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.