Enum ParseError

pub enum ParseError {
    Read(Error),
    UnexpectedRecord {
        found: RecordKind,
        expected: RecordKind,
    },
    UnexpectedEof,
}

All possible errors that can occur when parsing LCOV records.

Variants

Read(Error)

An error indicating that reading record operation failed.

This error occurs when the underlying reader returns an error.

Examples

use lcov::{Reader, Report};
use lcov::report::ParseError;
assert_matches!(Report::from_reader(Reader::new("FOO:1,2,3".as_bytes())), Err(ParseError::Read(_)));

UnexpectedRecord

An error indicating that unexpected kind of record is read.

This error occurs when the LCOV tracefile (or underlying reader) contains invalid record sequence.

Examples

use lcov::{Reader, Report, RecordKind};
use lcov::report::ParseError;
let input = "\
TN:test_name
SF:/usr/include/stdio.h
TN:next_test
";
assert_matches!(Report::from_reader(Reader::new(input.as_bytes())),
                Err(ParseError::UnexpectedRecord { found: RecordKind::TestName, expected: RecordKind::EndOfRecord }));

Fields

found: RecordKind

found record kind

expected: RecordKind

expected record kind

UnexpectedEof

An error indicating that unexpected “end of file”.

This error occurs when the LCOV tracefile (or underlying reader) contains invalid record sequence.

Examples

use lcov::{Reader, Report};
use lcov::report::ParseError;
let input = "\
TN:test_name
SF:/usr/include/stdio.h
";
assert_matches!(Report::from_reader(Reader::new(input.as_bytes())),
                Err(ParseError::UnexpectedEof));

Trait Implementations

impl Debug for ParseError

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

Formats the value using the given formatter.

impl Display for ParseError

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

Formats the value using the given formatter.

impl Error for ParseError

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 From<Error> for ParseError

fn from(source: Error) -> Self

Converts to this type from the input type.