Minor, don't intersect sets, use retainAll instead

2014-05-05 18:58:32 +04:00
parent eb11a7dc88
commit beb66e2247
1 changed files with 2 additions and 2 deletions
@@ -555,12 +555,12 @@ public class TypeUtils {
    private static Set<JetType> getIntersectionOfSupertypes(@NotNull Collection<JetType> types) {
        Set<JetType> upperBounds = Sets.newHashSet();
        for (JetType type : types) {
-            Set<JetType> supertypes = Sets.newHashSet(type.getConstructor().getSupertypes());
+            Collection<JetType> supertypes = type.getConstructor().getSupertypes();
            if (upperBounds.isEmpty()) {
                upperBounds.addAll(supertypes);
            }
            else {
-                upperBounds = Sets.intersection(upperBounds, supertypes);
+                upperBounds.retainAll(supertypes);
            }
        }
        return upperBounds;