Serde impls for Comparator

[dtolnay]

No description provided.

[dtolnay]

I need this for serializing a single Version as an = version req.

use semver::{Comparator, Version};
use serde::{Serialize, Serializer};

#[derive(Serialize)]
struct DependencySpec {
    package: String,
    #[serde(serialize_with = "exact_version")]
    version: Version,
}

fn exact_version<S>(version: &Version, serializer: S) -> Result<S::Ok, S::Error>
where
    S: Serializer,
{
    Serialize::serialize(&Comparator {
        op: semver::Op::Exact,
        major: version.major,
        minor: Some(version.minor),
        patch: Some(version.patch),
        pre: version.pre.clone(),
    }, serializer)
}