[Wasm] Fix invalid cast generation for inline classes

2023-01-03 19:24:55 +01:00
parent 1fa7c7119b
commit f7940a2d46
12 changed files with 67 additions and 10 deletions
@@ -739,7 +739,11 @@ class BodyGenerator(

        // REF -> REF -> REF_CAST
        if (!expectedIsPrimitive) {
-            generateRefNullCast(actualTypeErased, expectedTypeErased)
+            if (expectedClassErased.isSubclassOf(actualClassErased)) {
+                generateRefNullCast(actualTypeErased, expectedTypeErased)
+            } else {
+                body.buildUnreachable()
+            }
        }
    }