Enum ParseResult

pub enum ParseResult<T, E> {
    CommitOk(T),
    PeekOk(T),
    CommitErr(E),
    PeekErr(Tracked<E>),
}

A Result type which has the committed status flattened into the result. Conversions to and from std::result::Result can be done using result.into() or From::from(result)

Variants

CommitOk(T)

The parser has succeeded and has committed to this parse. If a parser after this fails, other parser alternatives will not be attempted (CommitErr will be returned)

PeekOk(T)

The parser has succeeded and has not committed to this parse. If a parser after this fails, other parser alternatives will be attempted (PeekErr will be returned)

CommitErr(E)

The parser failed other parse alternatives will not be attempted.

PeekErr(Tracked<E>)

The parser failed but other parse alternatives may be attempted.

Implementations

impl<T, E> ParseResult<T, E>

pub fn is_ok(&self) -> bool

pub fn is_err(&self) -> bool

pub fn as_ref(&self) -> ParseResult<&T, &E>

pub fn and_then<F, T2>(self, f: F) -> F::Output

where F: FnOnce(T) -> ParseResult<T2, E>,

pub fn map_err<F, E2>(self, f: F) -> ParseResult<T, F::Output>

where F: FnOnce(E) -> E2,

pub fn map<F, T2>(self, f: F) -> ParseResult<F::Output, E>

where F: FnOnce(T) -> T2,

impl<O, E> ParseResult<O, E>

pub fn into_result(self) -> StdParseResult2<O, E>

Trait Implementations

impl<T: Clone, E: Clone> Clone for ParseResult<T, E>

fn clone(&self) -> ParseResult<T, E>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug, E: Debug> Debug for ParseResult<T, E>

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

Formats the value using the given formatter.

impl<O, E> From<Result<(O, Commit<()>), Commit<Tracked<E>>>> for ParseResult<O, E>

fn from(result: StdParseResult2<O, E>) -> ParseResult<O, E>

Converts to this type from the input type.

impl<O, E> Into<Result<(O, Commit<()>), Commit<Tracked<E>>>> for ParseResult<O, E>

fn into(self) -> StdParseResult2<O, E>

Converts this type into the (usually inferred) input type.

impl<T, E> Into<Result<Commit<T>, Commit<Tracked<E>>>> for ParseResult<T, E>

fn into(self) -> Result<Commit<T>, Commit<Tracked<E>>>

Converts this type into the (usually inferred) input type.

impl<T: PartialEq, E: PartialEq> PartialEq for ParseResult<T, E>

fn eq(&self, other: &ParseResult<T, E>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: Copy, E: Copy> Copy for ParseResult<T, E>

impl<T, E> StructuralPartialEq for ParseResult<T, E>