Enum winnow::error::TreeError

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pub enum TreeError<I, C = StrContext> {
    Base(TreeErrorBase<I>),
    Stack {
        base: Box<Self>,
        stack: Vec<TreeErrorFrame<I, C>>,
    },
    Alt(Vec<Self>),
}
Expand description

Trace all error paths, particularly for tests

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Base(TreeErrorBase<I>)

Initial error that kicked things off

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Stack

Traces added to the error while walking back up the stack

Fields

§base: Box<Self>

Initial error that kicked things off

§stack: Vec<TreeErrorFrame<I, C>>

Traces added to the error while walking back up the stack

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Alt(Vec<Self>)

All failed branches of an alt

Implementations§

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impl<'i, I: ToOwned, C> TreeError<&'i I, C>
where &'i I: Stream + Clone, <I as ToOwned>::Owned: Clone,

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pub fn into_owned(self) -> TreeError<<I as ToOwned>::Owned, C>

Obtaining ownership

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impl<I, C> TreeError<I, C>
where I: Stream + Clone,

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pub fn map_input<I2: Clone, O: Clone + Fn(I) -> I2>( self, op: O, ) -> TreeError<I2, C>

Translate the input type

Trait Implementations§

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impl<I, C> AddContext<I, C> for TreeError<I, C>
where I: Stream + Clone,

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fn add_context( self, input: &I, token_start: &<I as Stream>::Checkpoint, context: C, ) -> Self

Append to an existing error custom data Read more
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impl<I: Debug, C: Debug> Debug for TreeError<I, C>

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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<I: Stream + Clone + Display, C: Display> Display for TreeError<I, C>

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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<I: Stream + Clone + Debug + Display + Sync + Send + 'static, C: Display + Debug> Error for TreeError<I, C>

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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<I, C, E: Error + Send + Sync + 'static> FromExternalError<I, E> for TreeError<I, C>
where I: Stream + Clone,

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fn from_external_error(input: &I, kind: ErrorKind, e: E) -> Self

Like ParserError::from_error_kind but also include an external error.
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impl<I, C> ParserError<I> for TreeError<I, C>
where I: Stream + Clone,

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fn from_error_kind(input: &I, kind: ErrorKind) -> Self

Creates an error from the input position and an ErrorKind
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fn append( self, input: &I, token_start: &<I as Stream>::Checkpoint, kind: ErrorKind, ) -> Self

Like ParserError::from_error_kind but merges it with the existing error. Read more
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fn or(self, other: Self) -> Self

Combines errors from two different parse branches. Read more
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fn assert(input: &I, _message: &'static str) -> Self
where I: Debug,

Process a parser assertion

Auto Trait Implementations§

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impl<I, C> Freeze for TreeError<I, C>
where I: Freeze,

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impl<I, C = StrContext> !RefUnwindSafe for TreeError<I, C>

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impl<I, C> Send for TreeError<I, C>
where I: Send, C: Send,

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impl<I, C> Sync for TreeError<I, C>
where I: Sync, C: Sync,

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impl<I, C> Unpin for TreeError<I, C>
where I: Unpin, C: Unpin,

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impl<I, C = StrContext> !UnwindSafe for TreeError<I, C>

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.