Derive PartialEq and Eq traits for Metadata

(as well as its transitive members `Resolve`, `WorkspaceDefaultMembers`, `Node`, `NodeDep` and `DepKindInfo`)

src/lib.rs

@@ -145,7 +145,7 @@ fn is_null(value: &serde_json::Value) -> bool {
     matches!(value, serde_json::Value::Null)
 }
 
-#[derive(Clone, Serialize, Deserialize, Debug)]
+#[derive(Clone, Serialize, Deserialize, Debug, PartialEq, Eq)]
 #[cfg_attr(feature = "builder", derive(Builder))]
 #[non_exhaustive]
 #[cfg_attr(feature = "builder", builder(pattern = "owned", setter(into)))]
@@ -224,7 +224,7 @@ impl<'a> std::ops::Index<&'a PackageId> for Metadata {
     }
 }
 
-#[derive(Clone, Debug, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize, PartialEq, Eq)]
 #[serde(transparent)]
 /// A list of default workspace members.
 ///
@@ -259,7 +259,7 @@ pub fn workspace_default_members_is_missing(
     workspace_default_members.0.is_none()
 }
 
-#[derive(Clone, Serialize, Deserialize, Debug)]
+#[derive(Clone, Serialize, Deserialize, Debug, PartialEq, Eq)]
 #[cfg_attr(feature = "builder", derive(Builder))]
 #[non_exhaustive]
 #[cfg_attr(feature = "builder", builder(pattern = "owned", setter(into)))]
@@ -283,7 +283,7 @@ impl<'a> std::ops::Index<&'a PackageId> for Resolve {
     }
 }
 
-#[derive(Clone, Serialize, Deserialize, Debug)]
+#[derive(Clone, Serialize, Deserialize, Debug, PartialEq, Eq)]
 #[cfg_attr(feature = "builder", derive(Builder))]
 #[non_exhaustive]
 #[cfg_attr(feature = "builder", builder(pattern = "owned", setter(into)))]
@@ -306,7 +306,7 @@ pub struct Node {
     pub features: Vec<String>,
 }
 
-#[derive(Clone, Serialize, Deserialize, Debug)]
+#[derive(Clone, Serialize, Deserialize, Debug, PartialEq, Eq)]
 #[cfg_attr(feature = "builder", derive(Builder))]
 #[non_exhaustive]
 #[cfg_attr(feature = "builder", builder(pattern = "owned", setter(into)))]
@@ -324,7 +324,7 @@ pub struct NodeDep {
     pub dep_kinds: Vec<DepKindInfo>,
 }
 
-#[derive(Clone, Serialize, Deserialize, Debug)]
+#[derive(Clone, Serialize, Deserialize, Debug, PartialEq, Eq)]
 #[cfg_attr(feature = "builder", derive(Builder))]
 #[non_exhaustive]
 #[cfg_attr(feature = "builder", builder(pattern = "owned", setter(into)))]