v1.9.7

Add a `ref` attribute to the field attribute of `SimpleObject`.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "async-graphql"
-version = "1.9.6"
+version = "1.9.7"
 authors = ["sunli <scott_s829@163.com>"]
 edition = "2018"
 description = "The GraphQL server library implemented by rust"
@@ -18,7 +18,7 @@ default = ["bson", "uuid", "url", "chrono-tz", "validators"]
 validators = ["regex"]
 
 [dependencies]
-async-graphql-derive = { path = "async-graphql-derive", version = "1.9.6" }
+async-graphql-derive = { path = "async-graphql-derive", version = "1.9.7" }
 graphql-parser = "=0.2.3"
 anyhow = "1.0.26"
 thiserror = "1.0.11"

async-graphql-actix-web/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "async-graphql-actix-web"
-version = "1.0.6"
+version = "1.0.7"
 authors = ["sunli <scott_s829@163.com>"]
 edition = "2018"
 description = "async-graphql for actix-web"
@@ -13,7 +13,7 @@ keywords = ["futures", "async", "graphql"]
 categories = ["network-programming", "asynchronous"]
 
 [dependencies]
-async-graphql = { path = "..", version = "1.9.6" }
+async-graphql = { path = "..", version = "1.9.7" }
 actix-web = "2.0.0"
 actix-web-actors = "2.0.0"
 actix = "0.9.0"

async-graphql-derive/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "async-graphql-derive"
-version = "1.9.6"
+version = "1.9.7"
 authors = ["sunli <scott_s829@163.com>"]
 edition = "2018"
 description = "Macros for async-graphql"

async-graphql-derive/src/args.rs

@@ -214,6 +214,7 @@ pub struct Field {
     pub external: bool,
     pub provides: Option<String>,
     pub requires: Option<String>,
+    pub is_ref: bool,
 }
 
 impl Field {
@@ -226,6 +227,7 @@ impl Field {
         let mut external = false;
         let mut provides = None;
         let mut requires = None;
+        let mut is_ref = false;
 
         for attr in attrs {
             match attr.parse_meta()? {
@@ -239,6 +241,9 @@ impl Field {
                             NestedMeta::Meta(Meta::Path(p)) if p.is_ident("external") => {
                                 external = true;
                             }
+                            NestedMeta::Meta(Meta::Path(p)) if p.is_ident("ref") => {
+                                is_ref = true;
+                            }
                             NestedMeta::Meta(Meta::NameValue(nv)) => {
                                 if nv.path.is_ident("name") {
                                     if let syn::Lit::Str(lit) = &nv.lit {
@@ -309,6 +314,7 @@ impl Field {
                 external,
                 provides,
                 requires,
+                is_ref,
             }))
         } else {
             Ok(None)

async-graphql-derive/src/simple_object.rs

@@ -90,12 +90,22 @@ pub fn generate(object_args: &args::Object, input: &mut DeriveInput) -> Result<T
                 });
 
                 let ident = &item.ident;
-                getters.push(quote! {
-                    #[inline]
-                    #vis async fn #ident(&self) -> #ty {
-                        self.#ident.clone()
-                    }
-                });
+
+                if field.is_ref {
+                    getters.push(quote! {
+                        #[inline]
+                        #vis async fn #ident(&self) -> &#ty {
+                            &self.#ident
+                        }
+                    });
+                } else {
+                    getters.push(quote! {
+                        #[inline]
+                        #vis async fn #ident(&self) -> #ty {
+                            self.#ident.clone()
+                        }
+                    });
+                }
 
                 resolvers.push(quote! {
                     if field.name.as_str() == #field_name {

async-graphql-warp/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "async-graphql-warp"
-version = "1.0.7"
+version = "1.0.8"
 authors = ["sunli <scott_s829@163.com>"]
 edition = "2018"
 description = "async-graphql for warp"
@@ -13,7 +13,7 @@ keywords = ["futures", "async", "graphql"]
 categories = ["network-programming", "asynchronous"]
 
 [dependencies]
-async-graphql = { path = "..", version = "1.9.6" }
+async-graphql = { path = "..", version = "1.9.7" }
 warp = "0.2.2"
 futures = "0.3.0"
 bytes = "0.5.4"

src/lib.rs

@@ -309,6 +309,7 @@ pub use async_graphql_derive::SimpleObject;
 /// | name        | Item name                 | string   | Y        |
 /// | desc        | Item description          | string   | Y        |
 /// | deprecation | Item deprecation reason   | string   | Y        |
+/// | ref         | The resolver function returns a borrowing value  | bool   | Y        |
 ///
 /// # Examples
 ///
@@ -409,6 +410,7 @@ pub use async_graphql_derive::InputObject;
 /// |-------------|---------------------------|----------|----------|
 /// | name        | Object name               | string   | Y        |
 /// | desc        | Object description        | string   | Y        |
+/// | implements  | The interface implements another interface | String | Y |
 ///
 /// # Field parameters
 ///

tests/interface.rs

@@ -47,6 +47,53 @@ pub async fn test_interface_simple_object() {
     );
 }
 
+#[async_std::test]
+pub async fn test_interface_simple_object2() {
+    #[async_graphql::SimpleObject]
+    pub struct MyObj {
+        #[field(ref)]
+        pub id: i32,
+        #[field]
+        pub title: String,
+    }
+
+    #[async_graphql::Interface(field(name = "id", type = "&i32"))]
+    pub struct Node(MyObj);
+
+    struct Query;
+
+    #[Object]
+    impl Query {
+        #[field]
+        async fn node(&self) -> Node {
+            MyObj {
+                id: 33,
+                title: "haha".to_string(),
+            }
+                .into()
+        }
+    }
+
+    let query = format!(
+        r#"{{
+            node {{
+                ... on Node {{
+                    id
+                }}
+            }}
+        }}"#
+    );
+    let schema = Schema::new(Query, EmptyMutation, EmptySubscription);
+    assert_eq!(
+        schema.execute(&query).await.unwrap().data,
+        serde_json::json!({
+            "node": {
+                "id": 33,
+            }
+        })
+    );
+}
+
 #[async_std::test]
 pub async fn test_multiple_interfaces() {
     struct MyObj;