Merge updates from version 0.2.7

Author: SSheldon

CHANGELOG.md

@@ -1,3 +1,11 @@
+## 0.2.7
+
+### Fixed
+
+* Uses of `msg_send!` will now correctly fail to compile if no return type
+  can be inferred, instead of relying on an edge case of the compiler
+  that will soon change and silently cause undefined behavior.
+
 ## 0.2.6
 
 ### Fixed

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "objc"
-version = "0.2.6"
+version = "0.2.7"
 authors = ["Steven Sheldon"]
 edition = "2018"
 

src/macros.rs

@@ -80,30 +80,38 @@ let _: () = msg_send![obj, setArg1:1 arg2:2];
 macro_rules! msg_send {
     (super($obj:expr, $superclass:expr), $name:ident) => ({
         let sel = $crate::sel!($name);
+        let result;
         match $crate::__send_super_message(&*$obj, $superclass, sel, ()) {
             Err(s) => panic!("{}", s),
-            Ok(r) => r,
+            Ok(r) => result = r,
         }
+        result
     });
     (super($obj:expr, $superclass:expr), $($name:ident : $arg:expr)+) => ({
         let sel = $crate::sel!($($name:)+);
+        let result;
         match $crate::__send_super_message(&*$obj, $superclass, sel, ($($arg,)*)) {
             Err(s) => panic!("{}", s),
-            Ok(r) => r,
+            Ok(r) => result = r,
         }
+        result
     });
     ($obj:expr, $name:ident) => ({
         let sel = $crate::sel!($name);
+        let result;
         match $crate::__send_message(&*$obj, sel, ()) {
             Err(s) => panic!("{}", s),
-            Ok(r) => r,
+            Ok(r) => result = r,
         }
+        result
     });
     ($obj:expr, $($name:ident : $arg:expr)+) => ({
         let sel = $crate::sel!($($name:)+);
+        let result;
         match $crate::__send_message(&*$obj, sel, ($($arg,)*)) {
             Err(s) => panic!("{}", s),
-            Ok(r) => r,
+            Ok(r) => result = r,
         }
+        result
     });
 }