Struct transduce::Either

pub struct Either<'input, Left: Parse<'input>, Right: Parse<'input, Input = Left::Input, Output = Left::Output>>(_, _);

Perform two actions in order and return the first one to succeed, or the second error if neither succeed.

Implementations

impl<'input, Left: Parse<'input>, Right: Parse<'input, Input = Left::Input, Output = Left::Output>> Either<'input, Left, Right>

pub const fn new( left: Parser<'input, Left>, right: Parser<'input, Right> ) -> Self

Create an instance without worrying about workarounds like PhantomData.

Trait Implementations

impl<'input, Left: Debug + Parse<'input>, Right: Debug + Parse<'input, Input = Left::Input, Output = Left::Output>> Debug for Either<'input, Left, Right>

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

Formats the value using the given formatter.

impl<'input, Left: Parse<'input>, Right: Parse<'input, Input = Left::Input, Output = Left::Output>> Parse<'input> for Either<'input, Left, Right>

type Input = <Left as Parse<'input>>::Input

Raw type, of which we parse a slice. E.g. u8 if we want to parse a string of bytes, not &[u8]: the slice is implied.

type Output = <Left as Parse<'input>>::Output

Output of parsing a slice of Inputs.

fn partial( &self, input: &'input [Self::Input] ) -> Result<(Self::Output, &'input [Self::Input]), ParseError>

Parse exactly one item of input; don’t continue without further instruction.