Add support for suppress edits push rule

According to MSC3958

crates/ruma-common/CHANGELOG.md

@@ -27,6 +27,7 @@ Improvements:
 - Add `MatrixVersion::V1_7` and `MatrixVersion::V1_8`
 - Add support for room version 11 according to MSC3820 / Matrix 1.8
   - Adapt the redaction algorithm in `canonical_json`
+- Add unstable support for suppress edits push rule (MSC3958)
 
 # 0.11.3
 

crates/ruma-common/Cargo.toml

@@ -30,6 +30,7 @@ unstable-msc2870 = []
 unstable-msc3381 = []
 unstable-msc3931 = []
 unstable-msc3932 = ["unstable-msc3931"]
+unstable-msc3958 = []
 unstable-unspecified = []
 
 # Don't validate the version part in `KeyId`.

crates/ruma-common/src/push/predefined.rs

@@ -40,6 +40,8 @@ impl Ruleset {
                 ConditionalPushRule::tombstone(),
                 ConditionalPushRule::reaction(),
                 ConditionalPushRule::server_acl(),
+                #[cfg(feature = "unstable-msc3958")]
+                ConditionalPushRule::suppress_edits(),
             ]
             .into(),
             underride: [
@@ -306,6 +308,23 @@ impl ConditionalPushRule {
             ],
         }
     }
+
+    /// Matches [event replacements].
+    ///
+    /// [event replacements]: https://spec.matrix.org/latest/client-server-api/#event-replacements
+    #[cfg(feature = "unstable-msc3958")]
+    pub fn suppress_edits() -> Self {
+        Self {
+            actions: vec![],
+            default: true,
+            enabled: true,
+            rule_id: PredefinedOverrideRuleId::SuppressEdits.to_string(),
+            conditions: vec![EventPropertyIs {
+                key: r"content.m\.relates_to.rel_type".to_owned(),
+                value: "m.replace".into(),
+            }],
+        }
+    }
 }
 
 /// Default content push rules
@@ -535,6 +554,11 @@ pub enum PredefinedOverrideRuleId {
     #[ruma_enum(rename = ".m.rule.room.server_acl")]
     RoomServerAcl,
 
+    /// `.m.rule.suppress_edits`
+    #[cfg(feature = "unstable-msc3958")]
+    #[ruma_enum(rename = ".org.matrix.msc3958.suppress_edits")]
+    SuppressEdits,
+
     #[doc(hidden)]
     _Custom(PrivOwnedStr),
 }

crates/ruma/Cargo.toml

@@ -199,6 +199,7 @@ unstable-msc3932 = ["ruma-common/unstable-msc3932"]
 unstable-msc3954 = ["ruma-events?/unstable-msc3954"]
 unstable-msc3955 = ["ruma-events?/unstable-msc3955"]
 unstable-msc3956 = ["ruma-events?/unstable-msc3956"]
+unstable-msc3958 = ["ruma-common/unstable-msc3958"]
 unstable-pdu = ["ruma-events?/unstable-pdu"]
 unstable-unspecified = [
     "ruma-common/unstable-unspecified",
@@ -239,6 +240,7 @@ __ci = [
     "unstable-msc3954",
     "unstable-msc3955",
     "unstable-msc3956",
+    "unstable-msc3958",
 ]
 
 [dependencies]