Function resolve_component_pin 

pub fn resolve_component_pin(
    pin: &PinStyle,
    raw: &str,
    releases: &[GitlabCiVersion],
) -> Option<GitlabCiVersion>

Resolves raw (a component: pin, already classified as pin) against releases.

releases must be the project’s published CI/CD Catalog releases (spec FR-007’s priority order: SHA > exact release > branch > ~latest > partial semver). A tag that exists in the repository but was never published as a release is never a candidate here — releases must already be the /releases response, never /repository/tags (FR-004).

Returns None when nothing in releases matches — the honest “unresolvable” outcome for a PinStyle::Branch pin, or for any pin naming a release/commit that doesn’t exist.

Examples

use deps_gitlab_ci::PinStyle;
use deps_gitlab_ci::component::resolve_component_pin;
use deps_gitlab_ci::GitlabCiVersion;

let releases = vec![GitlabCiVersion {
    version: "1.2.0".into(),
    sha: "a".repeat(40),
    prerelease: false,
    published_at: None,
}];
let resolved = resolve_component_pin(&PinStyle::Tag, "1.2.0", &releases).unwrap();
assert_eq!(resolved.version.as_str(), "1.2.0");