Enum AstSpanError 

#[non_exhaustive]
pub enum AstSpanError {
    InvalidSpan {
        start: usize,
        end: usize,
    },
    OverlappingSpans {
        start: usize,
        end: usize,
        parent_start: usize,
        parent_end: usize,
    },
    OverlappingTile {
        start: usize,
        end: usize,
        previous_end: usize,
    },
    UncoveredBytes {
        start: usize,
        end: usize,
        text: String,
    },
    UncoveredTail {
        start: usize,
        text: String,
    },
    ReconstructionMismatch {
        reconstructed_len: usize,
        source_len: usize,
    },
    IntervalStartAfterEnd {
        start: usize,
        end: usize,
    },
    IntervalExceedsSource {
        start: usize,
        end: usize,
        source_len: usize,
    },
    IntervalNotUtf8Boundary {
        start: usize,
        end: usize,
    },
}

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

InvalidSpan

An AST span had start > end; both fields are byte offsets.

Fields

start: usize

Inclusive start byte offset.

end: usize

Exclusive end byte offset.

OverlappingSpans

Two AST spans overlapped without one containing the other.

Fields

start: usize

Inclusive start byte offset of the offending span.

end: usize

Exclusive end byte offset of the offending span.

parent_start: usize

Inclusive start byte offset of the active parent/sibling span.

parent_end: usize

Exclusive end byte offset of the active parent/sibling span.

OverlappingTile

A reconstruction tile overlapped bytes already emitted.

Fields

start: usize

Inclusive start byte offset of the overlapping tile.

end: usize

Exclusive end byte offset of the overlapping tile.

previous_end: usize

Exclusive end byte offset of the previous tile.

UncoveredBytes

A non-empty source byte interval was not covered by AST or trivia.

Fields

start: usize

Inclusive start byte offset of the uncovered interval.

end: usize

Exclusive end byte offset of the uncovered interval.

text: String

Source text from the uncovered interval.

UncoveredTail

Source bytes after the final AST/trivia interval were not covered.

Fields

start: usize

Inclusive start byte offset of the uncovered tail.

text: String

Source text from the uncovered tail.

ReconstructionMismatch

Reconstructed source length differed from the original source length.

Fields

reconstructed_len: usize

Reconstructed byte length.

source_len: usize

Original source byte length.

IntervalStartAfterEnd

A token/trivia interval had start > end; both fields are byte offsets.

Fields

start: usize

Inclusive start byte offset.

end: usize

Exclusive end byte offset.

IntervalExceedsSource

A token/trivia interval extended past source_len.

Fields

start: usize

Inclusive start byte offset.

end: usize

Exclusive end byte offset.

source_len: usize

Original source byte length.

IntervalNotUtf8Boundary

A token/trivia interval boundary was not a UTF-8 boundary in source.

Fields

start: usize

Inclusive start byte offset.

end: usize

Exclusive end byte offset.

Trait Implementations

impl Clone for AstSpanError

fn clone(&self) -> AstSpanError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AstSpanError

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

Formats the value using the given formatter.

impl Display for AstSpanError

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

Formats the value using the given formatter.

impl Eq for AstSpanError

impl Error for AstSpanError

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

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

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.

impl PartialEq for AstSpanError

fn eq(&self, other: &AstSpanError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for AstSpanError