Struct arithmetic_parser::Error

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pub struct Error { /* private fields */ }
Expand description

Parsing error with a generic code span.

Two primary cases of the Span type param are &str (for original errors produced by the parser) and usize (for stripped errors that have a static lifetime).

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impl Error

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pub fn kind(&self) -> &ErrorKind

Returns the kind of this error.

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pub fn location(&self) -> Location

Returns the span of this error.

Trait Implementations§

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impl<'a> ContextError<LocatedSpan<&'a str>> for Error

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fn add_context(input: InputSpan<'a>, ctx: &'static str, target: Self) -> Self

Creates a new error from an input position, a static string and an existing error. This is used mainly in the context combinator, to add user friendly information to errors when backtracking through a parse tree
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impl Debug for Error

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

Formats the value using the given formatter. Read more
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impl Display for Error

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

Formats the value using the given formatter. Read more
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impl Error for Error

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

The lower-level source of this error, if any. Read more
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fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()
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fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting
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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. Read more
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impl<'a> FromExternalError<LocatedSpan<&'a str>, ErrorKind> for Error

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fn from_external_error( input: InputSpan<'a>, _: NomErrorKind, err: ErrorKind, ) -> Self

Creates a new error from an input position, an ErrorKind indicating the wrapping parser, and an external error
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impl<'a> ParseError<LocatedSpan<&'a str>> for Error

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fn from_error_kind(input: InputSpan<'a>, kind: NomErrorKind) -> Self

Creates an error from the input position and an ErrorKind
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fn append(_: InputSpan<'a>, _: NomErrorKind, other: Self) -> Self

Combines an existing error with a new one created from the input position and an ErrorKind. This is useful when backtracking through a parse tree, accumulating error context on the way
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fn from_char(input: I, _: char) -> Self

Creates an error from an input position and an expected character
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fn or(self, other: Self) -> Self

Combines two existing errors. This function is used to compare errors generated in various branches of alt.

Auto Trait Implementations§

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impl Freeze for Error

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impl RefUnwindSafe for Error

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impl Send for Error

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impl Sync for Error

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impl Unpin for Error

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impl UnwindSafe for Error

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.