Struct pest::error::Error [−][src]
pub struct Error<R> { pub variant: ErrorVariant<R>, pub location: InputLocation, // some fields omitted }
Parse-related error type.
Fields
variant: ErrorVariant<R>
Variant of the error
location: InputLocation
Location within the input string
Methods
impl<R: RuleType> Error<R>
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impl<R: RuleType> Error<R>
pub fn new_from_pos(variant: ErrorVariant<R>, pos: Position) -> Error<R>
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pub fn new_from_pos(variant: ErrorVariant<R>, pos: Position) -> Error<R>
Creates Error
from ErrorVariant
and Position
.
Examples
let error = Error::new_from_pos( ErrorVariant::ParsingError { positives: vec![Rule::open_paren], negatives: vec![Rule::closed_paren] }, pos ); println!("{}", error);
pub fn new_from_span(variant: ErrorVariant<R>, span: Span) -> Error<R>
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pub fn new_from_span(variant: ErrorVariant<R>, span: Span) -> Error<R>
Creates Error
from ErrorVariant
and Span
.
Examples
let error = Error::new_from_span( ErrorVariant::ParsingError { positives: vec![Rule::open_paren], negatives: vec![Rule::closed_paren] }, span ); println!("{}", error);
pub fn with_path(self, path: &str) -> Error<R>
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pub fn with_path(self, path: &str) -> Error<R>
Returns Error
variant with path
which is shown when formatted with Display
.
Examples
Error::new_from_pos( ErrorVariant::ParsingError { positives: vec![Rule::open_paren], negatives: vec![Rule::closed_paren] }, pos ).with_path("file.rs");
pub fn renamed_rules<F>(self, f: F) -> Error<R> where
F: FnMut(&R) -> String,
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pub fn renamed_rules<F>(self, f: F) -> Error<R> where
F: FnMut(&R) -> String,
Renames all Rule
s if this is a ParsingError
. It does nothing when called on a
CustomError
.
Useful in order to rename verbose rules or have detailed per-Rule
formatting.
Examples
Error::new_from_pos( ErrorVariant::ParsingError { positives: vec![Rule::open_paren], negatives: vec![Rule::closed_paren] }, pos ).renamed_rules(|rule| { match *rule { Rule::open_paren => "(".to_owned(), Rule::closed_paren => "closed paren".to_owned() } });
Trait Implementations
impl<R: Clone> Clone for Error<R>
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impl<R: Clone> Clone for Error<R>
fn clone(&self) -> Error<R>
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fn clone(&self) -> Error<R>
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl<R: Debug> Debug for Error<R>
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impl<R: Debug> Debug for Error<R>
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl<R: Eq> Eq for Error<R>
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impl<R: Eq> Eq for Error<R>
impl<R: Hash> Hash for Error<R>
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impl<R: Hash> Hash for Error<R>
fn hash<__HR: Hasher>(&self, state: &mut __HR)
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fn hash<__HR: Hasher>(&self, state: &mut __HR)
Feeds this value into the given [Hasher
]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
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fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl<R: PartialEq> PartialEq for Error<R>
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impl<R: PartialEq> PartialEq for Error<R>
fn eq(&self, other: &Error<R>) -> bool
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fn eq(&self, other: &Error<R>) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &Error<R>) -> bool
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fn ne(&self, other: &Error<R>) -> bool
This method tests for !=
.
impl<R: RuleType> Display for Error<R>
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impl<R: RuleType> Display for Error<R>
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl<'i, R: RuleType> Error for Error<R>
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impl<'i, R: RuleType> Error for Error<R>