1 files changed, 7 insertions, 7 deletions

diff --git a/method.h b/method.h
index 87c4ba314e..f66a384d7d 100644
--- a/method.h
+++ b/method.h
@@ -60,27 +60,27 @@ typedef struct rb_method_entry_struct {
 static inline void
 METHOD_ENTRY_VISI_SET(rb_method_entry_t *me, rb_method_visibility_t visi)
 {
-    VM_ASSERT(visi <= 3);
+    VM_ASSERT(visi >= 0 && visi <= 3);
     me->flags = (me->flags & ~(IMEMO_FL_USER0 | IMEMO_FL_USER1)) | (visi << IMEMO_FL_USHIFT+0);
 }
 static inline void
-METHOD_ENTRY_BASIC_SET(rb_method_entry_t *me, int basic)
+METHOD_ENTRY_BASIC_SET(rb_method_entry_t *me, unsigned int basic)
 {
     VM_ASSERT(basic <= 1);
     me->flags = (me->flags & ~(IMEMO_FL_USER2                 )) | (basic << IMEMO_FL_USHIFT+2);
 }
 static inline void
-METHOD_ENTRY_SAFE_SET(rb_method_entry_t *me, int safe)
+METHOD_ENTRY_SAFE_SET(rb_method_entry_t *me, unsigned int safe)
 {
-    VM_ASSERT(safe <= 3);
+    VM_ASSERT(safe <= 1);
     me->flags = (me->flags & ~(IMEMO_FL_USER3 | IMEMO_FL_USER4)) | (safe << IMEMO_FL_USHIFT+3);
 }
 static inline void
-METHOD_ENTRY_FLAGS_SET(rb_method_entry_t *me, rb_method_visibility_t visi, int basic, int safe)
+METHOD_ENTRY_FLAGS_SET(rb_method_entry_t *me, rb_method_visibility_t visi, unsigned int basic, unsigned int safe)
 {
-    VM_ASSERT(visi <= 3);
+    VM_ASSERT(visi >= 0 && visi <= 3);
     VM_ASSERT(basic <= 1);
-    VM_ASSERT(safe <= 3);
+    VM_ASSERT(safe <= 1);
     me->flags =
       (me->flags & ~(IMEMO_FL_USER0|IMEMO_FL_USER1|IMEMO_FL_USER2|IMEMO_FL_USER3|IMEMO_FL_USER4)) |
 	((visi << IMEMO_FL_USHIFT+0) | (basic << (IMEMO_FL_USHIFT+2)) | (safe << IMEMO_FL_USHIFT+3));