Signed-off-by: Tomek Grabiec <[email protected]>
---
vm/jni-interface.c | 20 +++++++++++++++++++-
1 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/vm/jni-interface.c b/vm/jni-interface.c
index b8882bf..05f8265 100644
--- a/vm/jni-interface.c
+++ b/vm/jni-interface.c
@@ -430,6 +430,24 @@ static jobject vm_jni_get_object_class(struct vm_jni_env
*env, jobject obj)
return obj->class->object;
}
+static jboolean
+vm_jni_is_assignable_from(struct vm_jni_env *env, jobject clazz1,
+ jobject clazz2)
+{
+ struct vm_class *class1, *class2;
+
+ enter_vm_from_jni();
+
+ if (!vm_object_is_instance_of(clazz1, vm_java_lang_Class) ||
+ !vm_object_is_instance_of(clazz2, vm_java_lang_Class))
+ return JNI_FALSE;
+
+ class1 = vm_class_get_class_from_class_object(clazz1);
+ class2 = vm_class_get_class_from_class_object(clazz2);
+
+ return vm_class_is_assignable_from(class1, class2);
+}
+
/*
* The JNI native interface table.
* See: http://java.sun.com/j2se/1.4.2/docs/guide/jni/spec/functions.html
@@ -451,7 +469,7 @@ void *vm_jni_native_interface[] = {
/* 10 */
NULL, /* GetSuperclass */
- NULL, /* IsAssignableFrom */
+ vm_jni_is_assignable_from, /* IsAssignableFrom */
NULL,
vm_jni_throw,
vm_jni_throw_new,
--
1.6.0.6
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