Add ParseDependency trait

This patch adds a trait "ParseDependency" which can be used to transform
a stringly typed dependency object into a (PackageName, PackageVersion).

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/package/dependency/build.rs b/src/package/dependency/build.rs
index 0f8c0c1..9d67051 100644
--- a/src/package/dependency/build.rs
+++ b/src/package/dependency/build.rs
@@ -1,6 +1,10 @@
 use serde::Deserialize;
+use anyhow::Result;
 
 use crate::package::dependency::StringEqual;
+use crate::package::dependency::ParseDependency;
+use crate::package::PackageName;
+use crate::package::PackageVersionConstraint;
 
 /// A dependency that is packaged and is only required during build time
 #[derive(Deserialize, Clone, Debug, Hash, Eq, PartialEq, Ord, PartialOrd)]
@@ -12,3 +16,10 @@ impl StringEqual for BuildDependency {
         self.0 == s
     }
 }
+
+impl ParseDependency for BuildDependency {
+    fn parse_into_name_and_version(self) -> Result<(PackageName, PackageVersionConstraint)> {
+        crate::package::dependency::parse_package_dependency_string_into_name_and_version(&self.0)
+    }
+}
+