[dart2js] new-rti: debug print of named type variable miss

Change-Id: Ib344442c1dc15136408df761852e901abf4b80c3 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/127221 Reviewed-by: Mayank Patke <fishythefish@google.com> Commit-Queue: Stephen Adams <sra@google.com>
dart-lang · Dec 9, 2019 · 964c9d8 · 964c9d8
1 parent 7974f3f
commit 964c9d8
Show file tree

Hide file tree

Showing 2 changed files with 6 additions and 0 deletions.
diff --git a/sdk/lib/_internal/js_runtime/lib/rti.dart b/sdk/lib/_internal/js_runtime/lib/rti.dart
@@ -1443,6 +1443,9 @@ class _Universe {
     Object rule = _Universe.findRule(universe, interfaceName);
     assert(rule != null);
     String recipe = TypeRule.lookupTypeVariable(rule, name);
+    if (recipe == null) {
+      throw 'No "$name" in "${Rti._getCanonicalRecipe(environment)}"';
+    }
     return _Universe.evalInEnvironment(universe, environment, recipe);
   }
 

diff --git a/sdk_nnbd/lib/_internal/js_runtime/lib/rti.dart b/sdk_nnbd/lib/_internal/js_runtime/lib/rti.dart
@@ -1443,6 +1443,9 @@ class _Universe {
     Object rule = _Universe.findRule(universe, interfaceName);
     assert(rule != null);
     String recipe = TypeRule.lookupTypeVariable(rule, name);
+    if (recipe == null) {
+      throw 'No "$name" in "${Rti._getCanonicalRecipe(environment)}"';
+    }
     return _Universe.evalInEnvironment(universe, environment, recipe);
   }