Fix QueryResponse path in generate_api

CHANGELOG.md

@@ -6,6 +6,13 @@ and this project adheres to
 
 ## [Unreleased]
 
+### Fixed
+
+- cosmwasm-schema: Fix type fully qualified path to symbol `QueryResponses` in
+  macro `cosmwasm_schema::generate_api!` ([#1527]).
+
+[#1527]: https://github.com/CosmWasm/cosmwasm/issues/1527
+
 ## [1.1.8] - 2022-11-22
 
 ### Fixed

packages/schema-derive/src/generate_api.rs

@@ -166,7 +166,7 @@ impl Parse for Options {
                 let ty = ty.unwrap_type();
                 (
                     quote! {Some(::cosmwasm_schema::schema_for!(#ty))},
-                    quote! { Some(<#ty as QueryResponses>::response_schemas().unwrap()) },
+                    quote! { Some(<#ty as ::cosmwasm_schema::QueryResponses>::response_schemas().unwrap()) },
                 )
             }
             None => (quote! { None }, quote! { None }),
@@ -272,7 +272,7 @@ mod tests {
                     query: Some(::cosmwasm_schema::schema_for!(QueryMsg)),
                     migrate: Some(::cosmwasm_schema::schema_for!(MigrateMsg)),
                     sudo: Some(::cosmwasm_schema::schema_for!(SudoMsg)),
-                    responses: Some(<QueryMsg as QueryResponses>::response_schemas().unwrap()),
+                    responses: Some(<QueryMsg as ::cosmwasm_schema::QueryResponses>::response_schemas().unwrap()),
                 }
             }
         );

packages/schema/tests/idl.rs

@@ -77,6 +77,32 @@ fn test_basic_structure() {
     );
 }
 
+// Test to reproduce https://github.com/CosmWasm/cosmwasm/issues/1527
+#[test]
+fn generate_api_works_when_only_types_are_imported() {
+    mod my_api_generator {
+        // Note super::QueryResponses is not imported in that case.
+        use super::generate_api;
+        use super::{ExecuteMsg, InstantiateMsg, MigrateMsg, QueryMsg, SudoMsg};
+
+        pub fn generate() {
+            let _api_str = generate_api! {
+                name: "test",
+                version: "0.1.0",
+                instantiate: InstantiateMsg,
+                query: QueryMsg,
+                execute: ExecuteMsg,
+                sudo: SudoMsg,
+                migrate: MigrateMsg,
+            }
+            .render()
+            .to_string()
+            .unwrap();
+        }
+    }
+    my_api_generator::generate();
+}
+
 #[test]
 fn test_query_responses() {
     let api_str = generate_api! {