add new test case

src/test/compile-fail/unsized-enum2.rs

@@ -0,0 +1,68 @@
+// Copyright 206 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use std::ops::Deref;
+
+// Due to aggressive error message deduplication, we require 20 *different*
+// unsized types (even Path and [u8] are considered the "same").
+
+trait Foo {}
+trait Bar {}
+trait FooBar {}
+trait BarFoo {}
+
+trait PathHelper1 {}
+trait PathHelper2 {}
+trait PathHelper3 {}
+trait PathHelper4 {}
+
+struct Path1(PathHelper1);
+struct Path2(PathHelper2);
+struct Path3(PathHelper3);
+struct Path4(PathHelper4);
+
+enum E<W: ?Sized, X: ?Sized, Y: ?Sized, Z: ?Sized> {
+    // parameter
+    VA(W), //~ ERROR `W: std::marker::Sized` is not satisfied
+    VB{x: X}, //~ ERROR `X: std::marker::Sized` is not satisfied
+    VC(isize, Y), //~ ERROR `Y: std::marker::Sized` is not satisfied
+    VD{u: isize, x: Z}, //~ ERROR `Z: std::marker::Sized` is not satisfied
+
+    // slice / str
+    VE([u8]), //~ ERROR `[u8]: std::marker::Sized` is not satisfied
+    VF{x: str}, //~ ERROR `str: std::marker::Sized` is not satisfied
+    VG(isize, [f32]), //~ ERROR `[f32]: std::marker::Sized` is not satisfied
+    VH{u: isize, x: [u32]}, //~ ERROR `[u32]: std::marker::Sized` is not satisfied
+
+    // unsized struct
+    VI(Path1), //~ ERROR `PathHelper1 + 'static: std::marker::Sized` is not satisfied
+    VJ{x: Path2}, //~ ERROR `PathHelper2 + 'static: std::marker::Sized` is not satisfied
+    VK(isize, Path3), //~ ERROR `PathHelper3 + 'static: std::marker::Sized` is not satisfied
+    VL{u: isize, x: Path4}, //~ ERROR `PathHelper4 + 'static: std::marker::Sized` is not satisfied
+
+    // plain trait
+    VM(Foo),  //~ ERROR `Foo + 'static: std::marker::Sized` is not satisfied
+    VN{x: Bar}, //~ ERROR `Bar + 'static: std::marker::Sized` is not satisfied
+    VO(isize, FooBar), //~ ERROR `FooBar + 'static: std::marker::Sized` is not satisfied
+    VP{u: isize, x: BarFoo}, //~ ERROR `BarFoo + 'static: std::marker::Sized` is not satisfied
+
+    // projected
+    VQ(<&'static [i8] as Deref>::Target), //~ ERROR `[i8]: std::marker::Sized` is not satisfied
+    VR{x: <&'static [char] as Deref>::Target},
+    //~^ ERROR `[char]: std::marker::Sized` is not satisfied
+    VS(isize, <&'static [f64] as Deref>::Target),
+    //~^ ERROR `[f64]: std::marker::Sized` is not satisfied
+    VT{u: isize, x: <&'static [i32] as Deref>::Target},
+    //~^ ERROR `[i32]: std::marker::Sized` is not satisfied
+}
+
+
+fn main() { }
+