Enum ConfigError 

pub enum ConfigError {
    IoOpen {
        path: PathBuf,
        err: String,
    },
    Parse {
        line: usize,
        col: usize,
        msg: String,
    },
    Schema {
        line: usize,
        field: String,
        msg: String,
    },
}

Reasons Config::load / from_toml_str can fail.

Variants

IoOpen

File could not be opened or read.

Fields

path: PathBuf

Path that failed to open.

err: String

Underlying error message.

Parse

Tokenizer / parser error with line + column.

Fields

line: usize

1-based line number in the source.

col: usize

1-based column number in the source.

msg: String

Human-readable error.

Schema

Value passed schema validation but the field rejected it (e.g. unknown enum variant, out-of-range integer).

Fields

line: usize

1-based line number where the offending value appeared.

field: String

[section].key of the rejected setting.

msg: String

Human-readable error.

Trait Implementations

impl Debug for ConfigError

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

Formats the value using the given formatter.

impl Display for ConfigError

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

Formats the value using the given formatter.

impl Error for ConfigError

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.