Struct nom::error::VerboseError

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pub struct VerboseError<I> {
    pub errors: Vec<(I, VerboseErrorKind)>,
}
Expand description

this error type accumulates errors and their position when backtracking through a parse tree. With some post processing (cf examples/json.rs), it can be used to display user friendly error messages

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§errors: Vec<(I, VerboseErrorKind)>

list of errors accumulated by VerboseError, containing the affected part of input data, and some context

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impl<I: Clone> Clone for VerboseError<I>

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

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<I: Debug> Debug for VerboseError<I>

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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> ParseError<I> for VerboseError<I>

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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(input: I, kind: ErrorKind, other: Self) -> Self

combines an existing error with a new one created from the input positionsition 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, c: char) -> Self

creates an error from an input position and an expected character
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fn add_context(input: I, ctx: &'static str, other: Self) -> Self

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

combines two existing error. This function is used to compare errors generated in various branches of [alt]
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impl<I: PartialEq> PartialEq for VerboseError<I>

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fn eq(&self, other: &VerboseError<I>) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<I> StructuralPartialEq for VerboseError<I>

Auto Trait Implementations§

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impl<I> Freeze for VerboseError<I>

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impl<I> RefUnwindSafe for VerboseError<I>
where I: RefUnwindSafe,

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impl<I> Send for VerboseError<I>
where I: Send,

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impl<I> Sync for VerboseError<I>
where I: Sync,

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impl<I> Unpin for VerboseError<I>
where I: Unpin,

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impl<I> UnwindSafe for VerboseError<I>
where I: UnwindSafe,

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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. 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.