client-api: Make types in r0::keys non-exhaustive

ruma-client-api/src/r0/keys.rs

@@ -15,18 +15,30 @@ pub mod upload_signatures;
 #[cfg(feature = "unstable-pre-spec")]
 pub mod upload_signing_keys;
 
+/// Signatures for a `SignedKey` object.
+pub type SignedKeySignatures = BTreeMap<UserId, BTreeMap<DeviceKeyId, String>>;
+
 /// A key for the SignedCurve25519 algorithm
 #[derive(Debug, Clone, Serialize, Deserialize)]
+#[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
 pub struct SignedKey {
     /// Base64-encoded 32-byte Curve25519 public key.
     pub key: String,
 
     /// Signatures for the key object.
-    pub signatures: BTreeMap<UserId, BTreeMap<DeviceKeyId, String>>,
+    pub signatures: SignedKeySignatures,
+}
+
+impl SignedKey {
+    /// Creates a new `SignedKey` with the given key and signatures.
+    pub fn new(key: String, signatures: SignedKeySignatures) -> Self {
+        Self { key, signatures }
+    }
 }
 
 /// A one-time public key for "pre-key" messages.
 #[derive(Debug, Clone, Serialize, Deserialize)]
+#[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
 #[serde(untagged)]
 pub enum OneTimeKey {
     /// A key containing signatures, for the SignedCurve25519 algorithm.
@@ -36,8 +48,12 @@ pub enum OneTimeKey {
     Key(String),
 }
 
+/// Signatures for a `CrossSigningKey` object.
+pub type CrossSigningKeySignatures = BTreeMap<UserId, BTreeMap<String, String>>;
+
 /// A cross signing key.
 #[derive(Clone, Debug, Deserialize, Serialize)]
+#[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
 pub struct CrossSigningKey {
     /// The ID of the user the key belongs to.
     pub user_id: UserId,
@@ -50,11 +66,25 @@ pub struct CrossSigningKey {
 
     /// Signatures of the key. Only optional for master key.
     #[serde(default, skip_serializing_if = "BTreeMap::is_empty")]
-    pub signatures: BTreeMap<UserId, BTreeMap<String, String>>,
+    pub signatures: CrossSigningKeySignatures,
+}
+
+impl CrossSigningKey {
+    /// Creates a new `CrossSigningKey` with the given user ID, usage, keys and
+    /// signatures.
+    pub fn new(
+        user_id: UserId,
+        usage: Vec<KeyUsage>,
+        keys: BTreeMap<String, String>,
+        signatures: CrossSigningKeySignatures,
+    ) -> Self {
+        Self { user_id, usage, keys, signatures }
+    }
 }
 
 /// The usage of a cross signing key.
 #[derive(Clone, Debug, Deserialize, Serialize)]
+#[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
 #[serde(rename_all = "snake_case")]
 pub enum KeyUsage {
     /// Master key.