Add gas_used to Reply

SEMANTICS.md

@@ -286,11 +286,12 @@ pub fn reply(deps: DepsMut, env: Env, msg: Reply) -> Result<Response, ContractEr
 
 pub struct Reply {
     pub id: u64,
-    /// ContractResult is just a nicely serializable version of `Result<SubcallResponse, String>`
-    pub result: ContractResult<SubcallResponse>,
+    pub gas_used: u64,
+    /// SubMsgResult is just a nicely serializable version of `Result<SubMsgResponse, String>`
+    pub result: SubMsgResult,
 }
 
-pub struct SubcallResponse {
+pub struct SubMsgResponse {
     pub events: Vec<Event>,
     pub data: Option<Binary>,
 }

packages/go-gen/src/main.rs

@@ -11,7 +11,7 @@ mod schema;
 mod utils;
 
 fn main() -> Result<()> {
-    let root = cosmwasm_schema::schema_for!(cosmwasm_std::BankQuery);
+    let root = cosmwasm_schema::schema_for!(cosmwasm_std::Reply);
 
     let code = generate_go(root)?;
     println!("{}", code);

packages/std/src/results/submessages.rs

@@ -102,6 +102,9 @@ pub struct Reply {
     /// The ID that the contract set when emitting the `SubMsg`.
     /// Use this to identify which submessage triggered the `reply`.
     pub id: u64,
+    /// The amount of gas used by the submessage,
+    /// measured in [Cosmos SDK gas](https://github.com/CosmWasm/cosmwasm/blob/main/docs/GAS.md).
+    pub gas_used: u64,
     pub result: SubMsgResult,
 }