1 files changed, 11 insertions, 1 deletions
diff --git a/src/jdk/nashorn/internal/codegen/types/Type.java b/src/jdk/nashorn/internal/codegen/types/Type.java
index 2fa2c315..e7c78953 100644
--- a/src/jdk/nashorn/internal/codegen/types/Type.java
+++ b/src/jdk/nashorn/internal/codegen/types/Type.java
@@ -292,6 +292,16 @@ public abstract class Type implements Comparable<Type>, BytecodeOps {
     }
 
     /**
+     * Determines whether this type represents an primitive type according to the ECMAScript specification,
+     * which includes Boolean, Number, and String.
+     *
+     * @return true if a JavaScript primitive type, false otherwise.
+     */
+    public boolean isJSPrimitive() {
+        return !isObject() || isString();
+    }
+
+    /**
      * Determines whether a type is the BOOLEAN type
      * @return true if BOOLEAN, false otherwise
      */
@@ -443,7 +453,7 @@ public abstract class Type implements Comparable<Type>, BytecodeOps {
         } else if (type0.isArray() != type1.isArray()) {
             //array and non array is always object, widest(Object[], int) NEVER returns Object[], which has most weight. that does not make sense
             return Type.OBJECT;
-        } else if (type0.isObject() && type1.isObject() && ((ObjectType)type0).getTypeClass() != ((ObjectType)type1).getTypeClass()) {
+        } else if (type0.isObject() && type1.isObject() && type0.getTypeClass() != type1.getTypeClass()) {
             // Object<type=String> and Object<type=ScriptFunction> will produce Object
             // TODO: maybe find most specific common superclass?
             return Type.OBJECT;