diff options
Diffstat (limited to 'libjava/java')
| -rw-r--r-- | libjava/java/lang/natClass.cc | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/libjava/java/lang/natClass.cc b/libjava/java/lang/natClass.cc index e88bd83..d6fb3ab 100644 --- a/libjava/java/lang/natClass.cc +++ b/libjava/java/lang/natClass.cc @@ -633,7 +633,7 @@ java::lang::Class::isAssignableFrom (jclass klass) jboolean java::lang::Class::isInstance (jobject obj) { - if (__builtin_expect (! obj || isPrimitive (), false)) + if (! obj) return false; _Jv_InitClass (this); return _Jv_IsAssignableFrom (this, JV_CLASS (obj)); @@ -939,19 +939,29 @@ _Jv_IsAssignableFrom (jclass target, jclass source) if (cl_iindex < if_idt->iface.ioffsets[0]) { jshort offset = if_idt->iface.ioffsets[cl_iindex]; - if (offset < cl_idt->cls.itable_length + if (offset != -1 && offset < cl_idt->cls.itable_length && cl_idt->cls.itable[offset] == target) return true; } return false; } - if ((target == &ObjectClass && !source->isPrimitive()) - || (source->ancestors != NULL - && source->ancestors[source->depth - target->depth] == target)) + // Primitive TYPE classes are only assignable to themselves. + if (__builtin_expect (target->isPrimitive(), false)) + return false; + + if (target == &ObjectClass) + { + if (source->isPrimitive()) + return false; + return true; + } + else if (source->ancestors != NULL + && source->depth >= target->depth + && source->ancestors[source->depth - target->depth] == target) return true; - return false; + return false; } // Interface type checking, the slow way. Returns TRUE if IFACE is a |