Signed-off-by: Tomek Grabiec <tgrab...@gmail.com>
---
 vm/jato.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/vm/jato.c b/vm/jato.c
index ad9eae9..dc8035e 100644
--- a/vm/jato.c
+++ b/vm/jato.c
@@ -569,6 +569,17 @@ native_vmclassloader_getprimitiveclass(int type)
        return class->object;
 }
 
+static jboolean
+native_vmclass_isinstance(struct vm_object *clazz, struct vm_object *object)
+{
+       struct vm_class *class = to_vmclass(clazz);
+
+       if (!object || !class)
+               return false;
+
+       return vm_class_is_assignable_from(class, object->class);
+}
+
 static int
 native_vmfile_is_directory(struct vm_object *dirpath)
 {
@@ -660,6 +671,7 @@ static struct vm_native natives[] = {
        DEFINE_NATIVE("java/lang/VMClass", "forName", &native_vmclass_forname),
        DEFINE_NATIVE("java/lang/VMClass", "isAnonymousClass", 
&native_vmclass_is_anonymous_class),
        DEFINE_NATIVE("java/lang/VMClass", "isArray", &native_vmclass_isarray),
+       DEFINE_NATIVE("java/lang/VMClass", "isInstance", 
&native_vmclass_isinstance),
        DEFINE_NATIVE("java/lang/VMClass", "isPrimitive", 
&native_vmclass_isprimitive),
        DEFINE_NATIVE("java/lang/VMClass", "getModifiers", 
&native_vmclass_getmodifiers),
        DEFINE_NATIVE("java/lang/VMClass", "getComponentType", 
&native_vmclass_getcomponenttype),
-- 
1.6.0.6


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