Struct InputError

pub struct InputError<I>
where
    I: Clone,
{
    pub input: I,
}

Available on crate feature dep_winnow only.

Capture input on error

This is useful for testing of generic parsers to ensure the error happens at the right location.

Note: context and inner errors (like from Parser::try_map) will be dropped.

Fields

input: I

The input stream, pointing to the location where the error occurred

Implementations

impl<I> InputError<I>

where I: Clone,

pub fn at(input: I) -> InputError<I>

Creates a new basic error

pub fn map_input<I2, O>(self, op: O) -> InputError<I2>

where I2: Clone, O: Fn(I) -> I2,

Translate the input type

impl<I> InputError<&I>

where I: ToOwned, <I as ToOwned>::Owned: Clone,

pub fn into_owned(self) -> InputError<<I as ToOwned>::Owned>

Obtaining ownership

Trait Implementations

impl<I, C> AddContext<I, C> for InputError<I>

where I: Stream + Clone,

fn add_context( self, _input: &I, _token_start: &<I as Stream>::Checkpoint, _context: C, ) -> Self

Append to an existing error custom data

impl<I> Clone for InputError<I>

where I: Clone,

fn clone(&self) -> InputError<I>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<I> Debug for InputError<I>

where I: Debug + Clone,

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

Formats the value using the given formatter.

impl<I> Display for InputError<I>

where I: Clone + Display,

The Display implementation allows the std::error::Error implementation

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

Formats the value using the given formatter.

impl<I> Error for InputError<I>

where I: Clone + Debug + Display + Sync + Send + 'static,

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl<I> ErrorConvert<InputError<(I, usize)>> for InputError<I>

where I: Clone,

fn convert(self) -> InputError<(I, usize)>

Transform to another error type

impl<I> ErrorConvert<InputError<I>> for InputError<(I, usize)>

where I: Clone,

fn convert(self) -> InputError<I>

Transform to another error type

impl<I, E> FromExternalError<I, E> for InputError<I>

where I: Clone,

fn from_external_error(input: &I, _e: E) -> InputError<I>

Create a new error from an input position and an external error

impl<I> ParserError<I> for InputError<I>

where I: Stream + Clone,

type Inner = InputError<I>

Generally, Self

fn from_input(input: &I) -> InputError<I>

Creates an error from the input position

fn into_inner( self, ) -> Result<<InputError<I> as ParserError<I>>::Inner, InputError<I>>

Unwrap the mode, returning the underlying error, if present

fn assert(input: &I, _message: &'static str) -> Self

where I: Debug,

Process a parser assertion

fn incomplete(input: &I, _needed: Needed) -> Self

There was not enough data to determine the appropriate action

fn append(self, _input: &I, _token_start: &<I as Stream>::Checkpoint) -> Self

Like ParserError::from_input but merges it with the existing error.

fn or(self, other: Self) -> Self

Combines errors from two different parse branches.

fn is_backtrack(&self) -> bool

Is backtracking and trying new parse branches allowed?

fn is_incomplete(&self) -> bool

Is more data Needed

fn needed(&self) -> Option<Needed>

Extract the Needed data, if present

impl<I> PartialEq for InputError<I>

where I: PartialEq + Clone,

fn eq(&self, other: &InputError<I>) -> 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<I> Copy for InputError<I>

where I: Copy + Clone,

impl<I> Eq for InputError<I>

where I: Eq + Clone,

impl<I> StructuralPartialEq for InputError<I>

where I: Clone,