Merge pull request #1750 from simlay/objc-inheritance

Objective-c inheritance support

6 files changed, 351 insertions, 0 deletions

diff --git a/tests/expectations/tests/libclang-3.8/objc_inheritance.rs b/tests/expectations/tests/libclang-3.8/objc_inheritance.rs
new file mode 100644
index 00000000..5443dd43
--- /dev/null
+++ b/tests/expectations/tests/libclang-3.8/objc_inheritance.rs
@@ -0,0 +1,68 @@
+/* automatically generated by rust-bindgen */
+
+#![allow(
+    dead_code,
+    non_snake_case,
+    non_camel_case_types,
+    non_upper_case_globals
+)]
+#![cfg(target_os = "macos")]
+
+#[macro_use]
+extern crate objc;
+#[allow(non_camel_case_types)]
+pub type id = *mut objc::runtime::Object;
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Foo(pub id);
+impl std::ops::Deref for Foo {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Foo {}
+impl Foo {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Foo), alloc) })
+    }
+}
+impl IFoo for Foo {}
+pub trait IFoo: Sized + std::ops::Deref {}
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Bar(pub id);
+impl std::ops::Deref for Bar {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Bar {}
+impl Bar {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Bar), alloc) })
+    }
+}
+impl IFoo for Bar {}
+impl IBar for Bar {}
+pub trait IBar: Sized + std::ops::Deref {}
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Baz(pub id);
+impl std::ops::Deref for Baz {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Baz {}
+impl Baz {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Baz), alloc) })
+    }
+}
+impl IBar for Baz {}
+impl IFoo for Baz {}
+impl IBaz for Baz {}
+pub trait IBaz: Sized + std::ops::Deref {}
diff --git a/tests/expectations/tests/libclang-3.9/objc_inheritance.rs b/tests/expectations/tests/libclang-3.9/objc_inheritance.rs
new file mode 100644
index 00000000..5443dd43
--- /dev/null
+++ b/tests/expectations/tests/libclang-3.9/objc_inheritance.rs
@@ -0,0 +1,68 @@
+/* automatically generated by rust-bindgen */
+
+#![allow(
+    dead_code,
+    non_snake_case,
+    non_camel_case_types,
+    non_upper_case_globals
+)]
+#![cfg(target_os = "macos")]
+
+#[macro_use]
+extern crate objc;
+#[allow(non_camel_case_types)]
+pub type id = *mut objc::runtime::Object;
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Foo(pub id);
+impl std::ops::Deref for Foo {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Foo {}
+impl Foo {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Foo), alloc) })
+    }
+}
+impl IFoo for Foo {}
+pub trait IFoo: Sized + std::ops::Deref {}
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Bar(pub id);
+impl std::ops::Deref for Bar {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Bar {}
+impl Bar {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Bar), alloc) })
+    }
+}
+impl IFoo for Bar {}
+impl IBar for Bar {}
+pub trait IBar: Sized + std::ops::Deref {}
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Baz(pub id);
+impl std::ops::Deref for Baz {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Baz {}
+impl Baz {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Baz), alloc) })
+    }
+}
+impl IBar for Baz {}
+impl IFoo for Baz {}
+impl IBaz for Baz {}
+pub trait IBaz: Sized + std::ops::Deref {}
diff --git a/tests/expectations/tests/libclang-4/objc_inheritance.rs b/tests/expectations/tests/libclang-4/objc_inheritance.rs
new file mode 100644
index 00000000..5443dd43
--- /dev/null
+++ b/tests/expectations/tests/libclang-4/objc_inheritance.rs
@@ -0,0 +1,68 @@
+/* automatically generated by rust-bindgen */
+
+#![allow(
+    dead_code,
+    non_snake_case,
+    non_camel_case_types,
+    non_upper_case_globals
+)]
+#![cfg(target_os = "macos")]
+
+#[macro_use]
+extern crate objc;
+#[allow(non_camel_case_types)]
+pub type id = *mut objc::runtime::Object;
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Foo(pub id);
+impl std::ops::Deref for Foo {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Foo {}
+impl Foo {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Foo), alloc) })
+    }
+}
+impl IFoo for Foo {}
+pub trait IFoo: Sized + std::ops::Deref {}
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Bar(pub id);
+impl std::ops::Deref for Bar {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Bar {}
+impl Bar {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Bar), alloc) })
+    }
+}
+impl IFoo for Bar {}
+impl IBar for Bar {}
+pub trait IBar: Sized + std::ops::Deref {}
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Baz(pub id);
+impl std::ops::Deref for Baz {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Baz {}
+impl Baz {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Baz), alloc) })
+    }
+}
+impl IBar for Baz {}
+impl IFoo for Baz {}
+impl IBaz for Baz {}
+pub trait IBaz: Sized + std::ops::Deref {}
diff --git a/tests/expectations/tests/libclang-5/objc_inheritance.rs b/tests/expectations/tests/libclang-5/objc_inheritance.rs
new file mode 100644
index 00000000..5443dd43
--- /dev/null
+++ b/tests/expectations/tests/libclang-5/objc_inheritance.rs
@@ -0,0 +1,68 @@
+/* automatically generated by rust-bindgen */
+
+#![allow(
+    dead_code,
+    non_snake_case,
+    non_camel_case_types,
+    non_upper_case_globals
+)]
+#![cfg(target_os = "macos")]
+
+#[macro_use]
+extern crate objc;
+#[allow(non_camel_case_types)]
+pub type id = *mut objc::runtime::Object;
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Foo(pub id);
+impl std::ops::Deref for Foo {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Foo {}
+impl Foo {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Foo), alloc) })
+    }
+}
+impl IFoo for Foo {}
+pub trait IFoo: Sized + std::ops::Deref {}
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Bar(pub id);
+impl std::ops::Deref for Bar {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Bar {}
+impl Bar {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Bar), alloc) })
+    }
+}
+impl IFoo for Bar {}
+impl IBar for Bar {}
+pub trait IBar: Sized + std::ops::Deref {}
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Baz(pub id);
+impl std::ops::Deref for Baz {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Baz {}
+impl Baz {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Baz), alloc) })
+    }
+}
+impl IBar for Baz {}
+impl IFoo for Baz {}
+impl IBaz for Baz {}
+pub trait IBaz: Sized + std::ops::Deref {}
diff --git a/tests/expectations/tests/libclang-9/objc_inheritance.rs b/tests/expectations/tests/libclang-9/objc_inheritance.rs
new file mode 100644
index 00000000..5443dd43
--- /dev/null
+++ b/tests/expectations/tests/libclang-9/objc_inheritance.rs
@@ -0,0 +1,68 @@
+/* automatically generated by rust-bindgen */
+
+#![allow(
+    dead_code,
+    non_snake_case,
+    non_camel_case_types,
+    non_upper_case_globals
+)]
+#![cfg(target_os = "macos")]
+
+#[macro_use]
+extern crate objc;
+#[allow(non_camel_case_types)]
+pub type id = *mut objc::runtime::Object;
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Foo(pub id);
+impl std::ops::Deref for Foo {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Foo {}
+impl Foo {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Foo), alloc) })
+    }
+}
+impl IFoo for Foo {}
+pub trait IFoo: Sized + std::ops::Deref {}
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Bar(pub id);
+impl std::ops::Deref for Bar {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Bar {}
+impl Bar {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Bar), alloc) })
+    }
+}
+impl IFoo for Bar {}
+impl IBar for Bar {}
+pub trait IBar: Sized + std::ops::Deref {}
+#[repr(transparent)]
+#[derive(Clone, Copy)]
+pub struct Baz(pub id);
+impl std::ops::Deref for Baz {
+    type Target = objc::runtime::Object;
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.0 }
+    }
+}
+unsafe impl objc::Message for Baz {}
+impl Baz {
+    pub fn alloc() -> Self {
+        Self(unsafe { msg_send!(objc::class!(Baz), alloc) })
+    }
+}
+impl IBar for Baz {}
+impl IFoo for Baz {}
+impl IBaz for Baz {}
+pub trait IBaz: Sized + std::ops::Deref {}
diff --git a/tests/headers/objc_inheritance.h b/tests/headers/objc_inheritance.h
new file mode 100644
index 00000000..8f96e45b
--- /dev/null
+++ b/tests/headers/objc_inheritance.h
@@ -0,0 +1,11 @@
+// bindgen-flags: --objc-extern-crate -- -x objective-c
+// bindgen-osx-only
+
+@interface Foo
+@end
+
+@interface Bar: Foo
+@end
+
+@interface Baz: Bar
+@end