Enum MergeError 

pub enum MergeError {
    UnmatchedFunctionLine,
    UnmatchedChecksum,
}

All possible errors that can occur when merging LCOV records.

Variants

UnmatchedFunctionLine

An error indicating that start line of functions are not same.

This error occurs when merging not compatible LCOV tracefiles.

Examples

use lcov::{Reader, Report};
use lcov::report::MergeError;
let input1 = "\
TN:test_name
SF:foo.c
FN:3,foo
end_of_record
";
let input2 = "\
TN:test_name
SF:foo.c
FN:4,foo
end_of_record
";
let mut report1 = Report::from_reader(Reader::new(input1.as_bytes()))?;
let report2 = Report::from_reader(Reader::new(input2.as_bytes()))?;
assert_matches!(report1.merge(report2),
                Err(MergeError::UnmatchedFunctionLine));

UnmatchedChecksum

An error indicating that checksum of lines are not same.

This error occurs when merging not compatible LCOV tracefiles.

Examples

use lcov::{Reader, Report};
use lcov::report::MergeError;
let input1 = "\
TN:test_name
SF:foo.c
DA:4,1,valid_checksum
end_of_record
";
let input2 = "\
TN:test_name
SF:foo.c
DA:4,4,invalid_checksum
end_of_record
";
let mut report1 = Report::from_reader(Reader::new(input1.as_bytes()))?;
let report2 = Report::from_reader(Reader::new(input2.as_bytes()))?;
assert_matches!(report1.merge(report2),
                Err(MergeError::UnmatchedChecksum));

Trait Implementations

impl Clone for MergeError

fn clone(&self) -> MergeError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MergeError

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

Formats the value using the given formatter.

impl Display for MergeError

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

Formats the value using the given formatter.

impl Error for MergeError

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 MergeError

fn eq(&self, other: &MergeError) -> 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 Copy for MergeError

impl Eq for MergeError

impl StructuralPartialEq for MergeError