add a test case

dont duplicate error codes

choose unlikely error code

specify error pattern in test

Author: toidiu

src/librustc_typeck/diagnostics.rs

@@ -4676,8 +4676,8 @@ register_diagnostics! {
     E0588, // packed struct cannot transitively contain a `[repr(align)]` struct
     E0592, // duplicate definitions with name `{}`
 //  E0613, // Removed (merged with E0609)
+    E0640, // infer outlives
     E0627, // yield statement outside of generator literal
     E0632, // cannot provide explicit type parameters when `impl Trait` is used in
            // argument position.
-    E0628, // infer outlives
 }

src/librustc_typeck/lib.rs

@@ -305,6 +305,11 @@ pub fn check_crate<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>)
 
     })?;
 
+    tcx.sess.track_errors(|| {
+        time(time_passes, "outlives testing", ||
+            outlives::test::test_inferred_outlives(tcx));
+    })?;
+
     tcx.sess.track_errors(|| {
         time(time_passes, "impl wf inference", ||
              impl_wf_check::impl_wf_check(tcx));
@@ -320,11 +325,6 @@ pub fn check_crate<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>)
              variance::test::test_variance(tcx));
     })?;
 
-    tcx.sess.track_errors(|| {
-        time(time_passes, "outlives testing", ||
-            outlives::test::test_inferred_outlives(tcx));
-    })?;
-
     time(time_passes, "wf checking", || check::check_wf_new(tcx))?;
 
     time(time_passes, "item-types checking", || check::check_item_types(tcx))?;

src/librustc_typeck/outlives/test.rs

@@ -30,7 +30,7 @@ impl<'a, 'tcx> ItemLikeVisitor<'tcx> for OutlivesTest<'a, 'tcx> {
             let inferred_outlives_of = self.tcx.inferred_outlives_of(item_def_id);
             span_err!(self.tcx.sess,
                       item.span,
-                      E0628,
+                      E0640,
                       "{:?}",
                       inferred_outlives_of);
         }

src/test/compile-fail/outlives-associated-types.rs

@@ -0,0 +1,24 @@
+// Copyright 2015 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.
+
+// Test that the outlives computation runs for now...
+
+#![feature(rustc_attrs)]
+
+//todo add all the test cases
+// https://github.com/rust-lang/rfcs/blob/master/text/2093-infer-outlives.md#example-1-a-reference
+
+#[rustc_outlives]
+struct Direct<'a, T> {
+    // inferred: `T: 'a`
+    field: &'a T //~ ERROR generic reference may outlive the data it points to
+}
+
+fn main() { }