Enum ParseError 

pub enum ParseError {
    MissingFileHeader {
        line: usize,
    },
}

Represents errors that can occur during the parsing of a diff file.

This error is returned by parsing functions like parse_patches() and parse_auto() when the input content is syntactically invalid.

Note that parse_diffs() is lenient and will typically skip blocks that do not look like valid patches rather than returning this error.

Example

use mpatch::{parse_patches, ParseError};

// This raw diff is missing the required `--- a/path` header.
let malformed_diff = r#"
@@ -1,2 +1,2 @@
-foo
+bar
"#;

let result = parse_patches(malformed_diff);

assert!(matches!(result, Err(ParseError::MissingFileHeader { .. })));

Variants

MissingFileHeader

A diff block or raw patch was found, but it was missing the --- a/path/to/file header required to identify the target file.

Fields

line: usize

The line number where the diff block started.

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<ParseError> for OneShotError

fn from(source: ParseError) -> Self

Converts to this type from the input type.

impl From<ParseError> for SingleParseError

fn from(source: ParseError) -> Self

Converts to this type from the input type.

impl PartialEq for ParseError

fn eq(&self, other: &ParseError) -> 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 ParseError