ParseError

sipha_error::error

Enum ParseError

pub enum ParseError<K: TokenKind, R: RuleId = ()> {
    UnexpectedToken {
        kind: K,
        span: Span,
        rule_context: Option<R>,
        context_stack: Vec<ErrorContext<R>>,
    },
    Expected {
        expected: Expected<K>,
        found: Option<K>,
        span: Span,
        rule_context: Option<R>,
        context_stack: Vec<ErrorContext<R>>,
    },
    NoRule {
        kind: K,
        span: Span,
        rule_context: Option<R>,
        context_stack: Vec<ErrorContext<R>>,
    },
    NonAssociative {
        kind: K,
        span: Span,
        rule_context: Option<R>,
        context_stack: Vec<ErrorContext<R>>,
    },
    InvalidContext {
        rule: &'static str,
        span: Span,
        rule_context: Option<R>,
        context_stack: Vec<ErrorContext<R>>,
    },
    UnexpectedEof {
        span: Span,
        rule_context: Option<R>,
        context_stack: Vec<ErrorContext<R>>,
    },
    RangeError {
        min: usize,
        max: usize,
        found: usize,
        span: Span,
        rule_context: Option<R>,
        context_stack: Vec<ErrorContext<R>>,
    },
    MultipleAlternatives {
        alternatives: Vec<ParseError<K, R>>,
        span: Span,
        rule_context: Option<R>,
        context_stack: Vec<ErrorContext<R>>,
    },
}

Expand description

Parse error emitted by the grammar and Pratt parser.

Variants§

UnexpectedToken

Unexpected token encountered.

Fields

§kind: K

§span: Span

§rule_context: Option<R>

§context_stack: Vec<ErrorContext<R>>

Expected

Specific token kind was expected.

Fields

§expected: Expected<K>

§found: Option<K>

§span: Span

§rule_context: Option<R>

§context_stack: Vec<ErrorContext<R>>

NoRule

Tried to look up a Pratt rule that does not exist.

Fields

§kind: K

§span: Span

§rule_context: Option<R>

§context_stack: Vec<ErrorContext<R>>

NonAssociative

Operator declared as non-associative but used twice in a row.

Fields

§kind: K

§span: Span

§rule_context: Option<R>

§context_stack: Vec<ErrorContext<R>>

InvalidContext

Conditional rule evaluated to false.

Fields

§rule: &'static str

§span: Span

§rule_context: Option<R>

§context_stack: Vec<ErrorContext<R>>

UnexpectedEof

Ran out of tokens while parsing.

Fields

§span: Span

§rule_context: Option<R>

§context_stack: Vec<ErrorContext<R>>

RangeError

Repetition exceeded its declared bounds.

Fields

§min: usize

§max: usize

§found: usize

§span: Span

§rule_context: Option<R>

§context_stack: Vec<ErrorContext<R>>

MultipleAlternatives

Multiple alternatives failed in a choice rule.

Fields

§alternatives: Vec<ParseError<K, R>>

§span: Span

§rule_context: Option<R>

§context_stack: Vec<ErrorContext<R>>

Trait Implementations§

impl<K: Clone + TokenKind, R: Clone + RuleId> Clone for ParseError<K, R>

fn clone(&self) -> ParseError<K, R>

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl<K: Debug + TokenKind, R: Debug + RuleId> Debug for ParseError<K, R>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl<K, R> Freeze for ParseError<K, R>
where K: Freeze, R: Freeze,

impl<K, R> RefUnwindSafe for ParseError<K, R>
where K: RefUnwindSafe, R: RefUnwindSafe,

impl<K, R> Send for ParseError<K, R>

impl<K, R> Sync for ParseError<K, R>

impl<K, R> Unpin for ParseError<K, R>
where K: Unpin, R: Unpin,

impl<K, R> UnwindSafe for ParseError<K, R>
where K: UnwindSafe + RefUnwindSafe, R: UnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

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

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.