Enum Error 

#[non_exhaustive]
pub enum Error {
    IO(Box<str>, Error),
    IllegalCharacter(Location, char),
    InvalidUtf8(Location),
    BadInt(Location, Box<str>),
    BadUInt(Location, Box<str>),
    BadFloat(Location, Box<str>),
    BadBool(Location, Box<str>),
    UnmatchedLeftBrace(Location),
    InvalidKey(Location, Box<str>),
    InvalidValue(Location),
    InvalidLine(Location),
    StrayCharsAfterString(Location),
    UnterminatedString(Location, char),
    InvalidEscapeSequence(Location, Box<str>),
    DuplicateKey(Box<str>, Location, Location),
    Multiple(Box<[Error]>),
}

A parsing error.

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.

IO(Box<str>, Error)

I/O error

The first field is a description of what led to the error.

IllegalCharacter(Location, char)

Illegal character in POM file

Specifically, an ASCII control character other than LF, CR immediately followed by LF, and tab.

InvalidUtf8(Location)

Invalid UTF-8 in POM file

BadInt(Location, Box<str>)

Couldn’t parse signed integer.

BadUInt(Location, Box<str>)

Couldn’t parse unsigned integer.

BadFloat(Location, Box<str>)

Couldn’t parse floating-point number.

BadBool(Location, Box<str>)

Couldn’t parse boolean.

UnmatchedLeftBrace(Location)

Opening [ without matching ].

InvalidKey(Location, Box<str>)

Key contains invalid characters.

The valid characters are anything outside of ASCII, as well as a–z, A–Z, 0–9, and each of /.-*_.

InvalidValue(Location)

Value contains a null character.

These are not allowed for interoperability with languages with null-terminated strings (C).

InvalidLine(Location)

Line is not a [section-header] or key = value.

StrayCharsAfterString(Location)

Characters appear after a quoted value.

e.g. key = "value" foo

UnterminatedString(Location, char)

String opened but never closed with a matching character.

InvalidEscapeSequence(Location, Box<str>)

Invalid escape sequence appears in a quoted value.

DuplicateKey(Box<str>, Location, Location)

Key is defined twice in a file

Multiple(Box<[Error]>)

Used when there is more than one error in a file.

None of the errors in the array will be Error::Multiple’s, and the array will contain at least two elements.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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.