Enum LoadError 

pub enum LoadError {
    Parse {
        message: String,
    },
    Io {
        field: FieldName,
        message: String,
    },
    Usage {
        message: String,
    },
}

Failure while loading command input from argv or stdin.

Variants

Parse

JSON text could not be parsed.

Fields

message: String

Io

A file or stdin read failed.

Fields

field: FieldName

message: String

Usage

Invalid argv shape; caller prints plain usage text (not JSON).

Fields

message: String

Implementations

impl LoadError

pub fn exit_code(&self) -> i32

Stable exit code for this load failure.

Trait Implementations

impl Debug for LoadError

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

Formats the value using the given formatter.

impl Display for LoadError

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

Formats the value using the given formatter.

impl Error for LoadError

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.