make SubscribeRequest forward-compatible

src/lib.rs

@@ -100,15 +100,9 @@ impl GeyserFilter {
         );
 
         SubscribeRequest {
-            slots: HashMap::new(),
-            accounts: Default::default(),
-            transactions: HashMap::new(),
-            entry: Default::default(),
             blocks: blocks_subs,
-            blocks_meta: HashMap::new(),
             commitment: Some(map_commitment_level(self.0) as i32),
-            accounts_data_slice: Default::default(),
+            ..Default::default()
-            ping: None,
         }
     }
 
@@ -117,15 +111,9 @@ impl GeyserFilter {
         blocksmeta_subs.insert("client".to_string(), SubscribeRequestFilterBlocksMeta {});
 
         SubscribeRequest {
-            slots: HashMap::new(),
-            accounts: Default::default(),
-            transactions: HashMap::new(),
-            entry: Default::default(),
-            blocks: HashMap::new(),
             blocks_meta: blocksmeta_subs,
             commitment: Some(map_commitment_level(self.0) as i32),
-            accounts_data_slice: Default::default(),
+            ..Default::default()
-            ping: None,
         }
     }
 
@@ -140,14 +128,8 @@ impl GeyserFilter {
 
         SubscribeRequest {
             slots: slots_subs,
-            accounts: Default::default(),
-            transactions: HashMap::new(),
-            entry: Default::default(),
-            blocks: HashMap::new(),
-            blocks_meta: HashMap::new(),
             commitment: Some(map_commitment_level(self.0) as i32),
-            accounts_data_slice: Default::default(),
+            ..Default::default()
-            ping: None,
         }
     }
 
@@ -163,15 +145,9 @@ impl GeyserFilter {
         );
 
         SubscribeRequest {
-            slots: HashMap::new(),
             accounts: accounts_subs,
-            transactions: HashMap::new(),
-            entry: Default::default(),
-            blocks: Default::default(),
-            blocks_meta: HashMap::new(),
             commitment: Some(map_commitment_level(self.0) as i32),
-            accounts_data_slice: Default::default(),
+            ..Default::default()
-            ping: None,
         }
     }
 }