Struct Deprecation 

pub struct Deprecation {
    pub reason: Option<String>,
    pub replacement: Option<String>,
}

Package-level deprecation/abandonment payload: why a package is deprecated, and what to use instead.

Distinct from RemovalStatus, which answers “may resolution select this version”. Deprecation answers “what should the user be told” — the reason text and/or a registry-supplied replacement package name. Kept as a separate type rather than a payload-carrying RemovalStatus variant: RemovalStatus is Copy, returned from const fns, and matched in every ecosystem crate, so widening it would ripple everywhere for a concept that only a couple of registries expose.

Both fields are None when the registry has nothing to say beyond “deprecated” — e.g. Packagist’s bare "abandoned": true, with no replacement named.

Examples

use deps_core::Deprecation;

let deprecation = Deprecation {
    reason: Some("no longer maintained".into()),
    replacement: Some("some-other/package".into()),
};

assert_eq!(deprecation.reason.as_deref(), Some("no longer maintained"));
assert_eq!(deprecation.replacement.as_deref(), Some("some-other/package"));

Fields

reason: Option<String>

Free-text reason the registry gives for the deprecation, if any.

replacement: Option<String>

Registry-supplied replacement package name, if any. Only ever populated from a structured registry field (never regex-extracted from free text — see #205’s typosquatting rationale), so it is safe to offer as a rename target.

Trait Implementations

impl Clone for Deprecation

fn clone(&self) -> Deprecation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Deprecation

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

Formats the value using the given formatter.

impl Eq for Deprecation

impl PartialEq for Deprecation

fn eq(&self, other: &Deprecation) -> 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 StructuralPartialEq for Deprecation