1 files changed, 12 insertions, 0 deletions
diff --git a/dexlib2/src/main/java/org/jf/dexlib2/analysis/util/TypeProtoUtils.java b/dexlib2/src/main/java/org/jf/dexlib2/analysis/util/TypeProtoUtils.java
index 0313c7c3..e2adf1c4 100644
--- a/dexlib2/src/main/java/org/jf/dexlib2/analysis/util/TypeProtoUtils.java
+++ b/dexlib2/src/main/java/org/jf/dexlib2/analysis/util/TypeProtoUtils.java
@@ -94,4 +94,16 @@ public class TypeProtoUtils {
             return type.getClassPath().getUnknownClass();
         }
     }
+
+    public static boolean extendsFrom(@Nonnull TypeProto candidate, @Nonnull String possibleSuper) {
+        if (candidate.getType().equals(possibleSuper)) {
+            return true;
+        }
+        for (TypeProto superProto: getSuperclassChain(candidate)) {
+            if (superProto.getType().equals(possibleSuper)) {
+                return true;
+            }
+        }
+        return false;
+    }
 }