Enum WarningKind 

#[non_exhaustive]
pub enum WarningKind {
    DeprecatedFlag,
    DeprecatedCommand,
    DeprecatedEnv,
    Other,
}

The kinds of deprecation a parse can run into.

The message is for a person and its wording is nobody’s contract; this is what a program can act on. A CLI that queues its warnings wants to sort them; a --strict mode wants to refuse one kind and not another; a conformance vector wants to pin what happened without pinning how it was worded.

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.

DeprecatedFlag

A flag whose declaration says not to use it any more.

DeprecatedCommand

A command whose declaration says not to use it any more. Every deprecated command on the selected path reports, not only the last one.

DeprecatedEnv

A value that arrived through a deprecated_env alias rather than a current name.

Other

Something a CLI’s own layer says, which this crate has no name for.

Trait Implementations

impl Clone for WarningKind

fn clone(&self) -> WarningKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for WarningKind

impl Debug for WarningKind

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

Formats the value using the given formatter.

impl Default for WarningKind

fn default() -> WarningKind

Returns the “default value” for a type.

impl Eq for WarningKind

impl PartialEq for WarningKind

fn eq(&self, other: &WarningKind) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for WarningKind