Don't consume Statement

postgres-tokio/src/lib.rs

@@ -616,13 +616,12 @@ impl Statement {
         &self.columns
     }
 
-    pub fn execute(self,
+    pub fn execute(&self,
                    params: &[&ToSql],
                    conn: Connection)
-                   -> BoxFuture<(u64, Statement, Connection), Error> {
+                   -> BoxFuture<(u64, Connection), Error> {
         conn.raw_execute(&self.name, "", &self.params, params)
             .and_then(|conn| conn.finish_execute())
-            .map(|(n, conn)| (n, self, conn))
             .boxed()
     }
 }

postgres-tokio/src/test.rs

@@ -113,11 +113,11 @@ fn prepare_execute() {
             c.unwrap().prepare("CREATE TEMPORARY TABLE foo (id SERIAL PRIMARY KEY, name VARCHAR)")
         })
         .and_then(|(s, c)| s.execute(&[], c))
-        .and_then(|(n, _, c)| {
+        .and_then(|(n, c)| {
             assert_eq!(0, n);
             c.prepare("INSERT INTO foo (name) VALUES ($1), ($2)")
         })
         .and_then(|(s, c)| s.execute(&[&"steven", &"bob"], c))
-        .map(|(n, _, _)| assert_eq!(n, 2));
+        .map(|(n, _)| assert_eq!(n, 2));
     l.run(done).unwrap();
 }