lifetime elision: add conforming-to-fn tests.

src/test/ui/self/elision/alias-async.rs

@@ -0,0 +1,39 @@
+// check-pass
+// edition:2018
+
+#![feature(async_await)]
+
+#![feature(arbitrary_self_types)]
+#![allow(non_snake_case)]
+
+use std::rc::Rc;
+
+struct Struct { }
+
+type Alias = Struct;
+
+impl Struct {
+    // Test using an alias for `Struct`:
+
+    async fn alias(self: Alias, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn box_Alias(self: Box<Alias>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn rc_Alias(self: Rc<Alias>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn box_box_Alias(self: Box<Box<Alias>>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn box_rc_Alias(self: Box<Rc<Alias>>, f: &u32) -> &u32 {
+        f
+    }
+}
+
+fn main() { }

src/test/ui/self/elision/assoc-async.rs

@@ -0,0 +1,43 @@
+// check-pass
+// edition:2018
+
+#![feature(async_await)]
+
+#![feature(arbitrary_self_types)]
+#![allow(non_snake_case)]
+
+use std::rc::Rc;
+
+trait Trait {
+    type AssocType;
+}
+
+struct Struct { }
+
+impl Trait for Struct {
+    type AssocType = Self;
+}
+
+impl Struct {
+    async fn assoc(self: <Struct as Trait>::AssocType, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn box_AssocType(self: Box<<Struct as Trait>::AssocType>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn rc_AssocType(self: Rc<<Struct as Trait>::AssocType>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn box_box_AssocType(self: Box<Box<<Struct as Trait>::AssocType>>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn box_rc_AssocType(self: Box<Rc<<Struct as Trait>::AssocType>>, f: &u32) -> &u32 {
+        f
+    }
+}
+
+fn main() { }

src/test/ui/self/elision/lt-alias-async.rs

@@ -0,0 +1,41 @@
+// check-pass
+// edition:2018
+
+#![feature(async_await)]
+
+#![feature(arbitrary_self_types)]
+#![allow(non_snake_case)]
+
+use std::rc::Rc;
+
+struct Struct<'a> { x: &'a u32 }
+
+type Alias<'a> = Struct<'a>;
+
+impl<'a> Alias<'a> {
+    async fn take_self(self, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Alias(self: Alias<'a>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_Alias(self: Box<Alias<'a>>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_Box_Alias(self: Box<Box<Alias<'a>>>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Rc_Alias(self: Rc<Alias<'a>>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_Rc_Alias(self: Box<Rc<Alias<'a>>>, f: &u32) -> &u32 {
+        f
+    }
+}
+
+fn main() { }

src/test/ui/self/elision/lt-assoc-async.rs

@@ -0,0 +1,53 @@
+// check-pass
+// edition:2018
+
+#![feature(async_await)]
+
+#![feature(arbitrary_self_types)]
+#![allow(non_snake_case)]
+
+use std::rc::Rc;
+
+trait Trait {
+    type AssocType;
+}
+
+struct Struct<'a> { x: &'a u32 }
+
+impl<'a> Trait for Struct<'a> {
+    type AssocType = Self;
+}
+
+impl<'a> Struct<'a> {
+    async fn take_self(self, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_AssocType(self: <Struct<'a> as Trait>::AssocType, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_AssocType(self: Box<<Struct<'a> as Trait>::AssocType>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_Box_AssocType(
+        self: Box<Box<<Struct<'a> as Trait>::AssocType>>,
+        f: &u32
+    ) -> &u32 {
+        f
+    }
+
+    async fn take_Rc_AssocType(self: Rc<<Struct<'a> as Trait>::AssocType>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_Rc_AssocType(
+        self: Box<Rc<<Struct<'a> as Trait>::AssocType>>,
+        f: &u32
+    ) -> &u32 {
+        f
+    }
+}
+
+fn main() { }

src/test/ui/self/elision/lt-self-async.rs

@@ -0,0 +1,52 @@
+// check-pass
+// edition:2018
+
+#![feature(async_await)]
+
+#![feature(arbitrary_self_types)]
+#![allow(non_snake_case)]
+
+use std::pin::Pin;
+use std::rc::Rc;
+
+struct Struct<'a> {
+    x: &'a u32
+}
+
+impl<'a> Struct<'a> {
+    async fn take_self(self, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Self(self: Self, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_Self(self: Box<Self>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_Box_Self(self: Box<Box<Self>>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Rc_Self(self: Rc<Self>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_Rc_Self(self: Box<Rc<Self>>, f: &u32) -> &u32 {
+        f
+    }
+
+    // N/A
+    //fn take_Pin_Self(self: Pin<Self>, f: &u32) -> &u32 {
+    //    f
+    //}
+
+    // N/A
+    //fn take_Box_Pin_Self(self: Box<Pin<Self>>, f: &u32) -> &u32 {
+    //    f
+    //}
+}
+
+fn main() { }

src/test/ui/self/elision/lt-struct-async.rs

@@ -0,0 +1,39 @@
+// check-pass
+// edition:2018
+
+#![feature(async_await)]
+
+#![feature(arbitrary_self_types)]
+#![allow(non_snake_case)]
+
+use std::rc::Rc;
+
+struct Struct<'a> { x: &'a u32 }
+
+impl<'a> Struct<'a> {
+    async fn take_self(self, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Struct(self: Struct<'a>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_Struct(self: Box<Struct<'a>>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_Box_Struct(self: Box<Box<Struct<'a>>>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Rc_Struct(self: Rc<Struct<'a>>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_Rc_Struct(self: Box<Rc<Struct<'a>>>, f: &u32) -> &u32 {
+        f
+    }
+}
+
+fn main() { }

src/test/ui/self/elision/self-async.rs

@@ -0,0 +1,39 @@
+// check-pass
+// edition:2018
+
+#![feature(async_await)]
+
+#![feature(arbitrary_self_types)]
+#![allow(non_snake_case)]
+
+use std::rc::Rc;
+
+struct Struct { }
+
+impl Struct {
+    async fn take_self(self, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Self(self: Self, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_Self(self: Box<Self>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_Box_Self(self: Box<Box<Self>>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Rc_Self(self: Rc<Self>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn take_Box_Rc_Self(self: Box<Rc<Self>>, f: &u32) -> &u32 {
+        f
+    }
+}
+
+fn main() { }

src/test/ui/self/elision/struct-async.rs

@@ -0,0 +1,35 @@
+// check-pass
+// edition:2018
+
+#![feature(async_await)]
+
+#![feature(arbitrary_self_types)]
+#![allow(non_snake_case)]
+
+use std::rc::Rc;
+
+struct Struct { }
+
+impl Struct {
+    async fn ref_Struct(self: Struct, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn box_Struct(self: Box<Struct>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn rc_Struct(self: Rc<Struct>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn box_box_Struct(self: Box<Box<Struct>>, f: &u32) -> &u32 {
+        f
+    }
+
+    async fn box_rc_Struct(self: Box<Rc<Struct>>, f: &u32) -> &u32 {
+        f
+    }
+}
+
+fn main() { }