Struct Warning 

pub struct Warning<'t> {
    pub kind: WarningKind,
    pub name: &'t str,
    pub message: Option<&'t str>,
    pub warn_at: Option<&'t str>,
    pub remove_at: Option<&'t str>,
    pub replacement: Option<&'t str>,
}

One thing a command line used that its own spec says not to use any more.

Fields

kind: WarningKind

What sort of declaration it was, for a caller that treats them differently.

name: &'t str

What the user typed or set: --old-flag, old-cmd, OLD_ENV.

message: Option<&'t str>

The author’s reason, when the declaration carries one.

warn_at: Option<&'t str>

The release warnings start at. A warning that is here has already passed it.

remove_at: Option<&'t str>

The release the declaration goes away in, when the author has named one.

replacement: Option<&'t str>

What to use instead, when the declaration implies one — the current variable, for a deprecated environment alias.

Implementations

impl<'t> Warning<'t>

pub const fn flag( name: &'t str, message: Option<&'t str>, warn_at: Option<&'t str>, remove_at: Option<&'t str>, ) -> Warning<'t>

A deprecated flag that was given.

pub const fn command( name: &'t str, message: Option<&'t str>, warn_at: Option<&'t str>, remove_at: Option<&'t str>, ) -> Warning<'t>

A deprecated command that was selected.

pub const fn env(name: &'t str, replacement: Option<&'t str>) -> Warning<'t>

A value read from a deprecated environment alias, and the current name for it.

An alias carries no milestones of its own: the declaration that named it is what says it is deprecated, so this always warns.

Trait Implementations

impl<'t> Clone for Warning<'t>

fn clone(&self) -> Warning<'t>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'t> Copy for Warning<'t>

impl<'t> Debug for Warning<'t>

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

Formats the value using the given formatter.

impl<'t> Eq for Warning<'t>

impl<'t> PartialEq for Warning<'t>

fn eq(&self, other: &Warning<'t>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<'t> StructuralPartialEq for Warning<'t>