Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 35 insertions, 0 deletions

diff --git a/third_party/rust/objc/src/message/gnustep.rs b/third_party/rust/objc/src/message/gnustep.rs
new file mode 100644
index 0000000000..2e28689cef
--- /dev/null
+++ b/third_party/rust/objc/src/message/gnustep.rs
@@ -0,0 +1,35 @@
+use std::any::Any;
+use std::mem;
+
+use runtime::{Class, Object, Imp, Sel};
+use super::{Message, MessageArguments, MessageError, Super};
+
+extern {
+    fn objc_msg_lookup(receiver: *mut Object, op: Sel) -> Imp;
+    fn objc_msg_lookup_super(sup: *const Super, sel: Sel) -> Imp;
+}
+
+pub unsafe fn send_unverified<T, A, R>(obj: *const T, sel: Sel, args: A)
+        -> Result<R, MessageError>
+        where T: Message, A: MessageArguments, R: Any {
+    if obj.is_null() {
+        return mem::zeroed();
+    }
+
+    let receiver = obj as *mut T as *mut Object;
+    let msg_send_fn = objc_msg_lookup(receiver, sel);
+    objc_try!({
+        A::invoke(msg_send_fn, receiver, sel, args)
+    })
+}
+
+pub unsafe fn send_super_unverified<T, A, R>(obj: *const T, superclass: &Class,
+        sel: Sel, args: A) -> Result<R, MessageError>
+        where T: Message, A: MessageArguments, R: Any {
+    let receiver = obj as *mut T as *mut Object;
+    let sup = Super { receiver: receiver, superclass: superclass };
+    let msg_send_fn = objc_msg_lookup_super(&sup, sel);
+    objc_try!({
+        A::invoke(msg_send_fn, receiver, sel, args)
+    })
+}