Enum ArgError 

pub enum ArgError {
    MissingRequired {
        name: &'static str,
        kind: ArgKind,
    },
    TooManyArgs {
        expected: usize,
        got: usize,
    },
    InvalidValue {
        name: &'static str,
        kind: ArgKind,
        value: String,
    },
}

Error type for argument binding failures.

Variants

MissingRequired

A required argument is missing.

Fields

name: &'static str

The argument name.

kind: ArgKind

The expected argument kind.

TooManyArgs

Too many arguments provided.

Fields

expected: usize

Expected argument count.

got: usize

Actual argument count.

InvalidValue

Argument value could not be parsed as expected type.

Fields

name: &'static str

The argument name.

kind: ArgKind

The expected argument kind.

value: String

The actual value that failed to parse.

Trait Implementations

impl Clone for ArgError

fn clone(&self) -> ArgError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ArgError

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

Formats the value using the given formatter.

impl Display for ArgError

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

Formats the value using the given formatter.

impl PartialEq for ArgError

fn eq(&self, other: &ArgError) -> 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 Eq for ArgError

impl StructuralPartialEq for ArgError