Make select_* methods return Vec for TraitEngine

2021-11-08 23:35:23 +08:00 · 2021-11-08 23:35:23 +08:00 · f1126f1272
commit f1126f1272
parent b3074819f6
25 changed files with 147 additions and 117 deletions
--- a/compiler/rustc_traits/src/implied_outlives_bounds.rs
+++ b/compiler/rustc_traits/src/implied_outlives_bounds.rs
@ -128,9 +128,9 @@ fn compute_implied_outlives_bounds<'tcx>(

    // Ensure that those obligations that we had to solve
    // get solved *here*.
-    match fulfill_cx.select_all_or_error(infcx) {
-        Ok(()) => Ok(implied_bounds),
-        Err(_) => Err(NoSolution),
+    match fulfill_cx.select_all_or_error(infcx).as_slice() {
+        [] => Ok(implied_bounds),
+        _ => Err(NoSolution),
    }
 }