Data object is automatically converted to a PtrData object using to_ptr().

git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_8@8597 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 15 insertions, 1 deletions

diff --git a/ext/dl/dl.c b/ext/dl/dl.c
index 22abb754d..02cfcf011 100644
--- a/ext/dl/dl.c
+++ b/ext/dl/dl.c
@@ -435,7 +435,15 @@ c_parray(VALUE v, long *size)
 	ary[i] = (void*)(pdata->ptr);
       }
       else{
-	rb_raise(rb_eDLTypeError, "unexpected type of the element #%d", i);
+        e = rb_funcall(e, rb_intern("to_ptr"), 0);
+        if (rb_obj_is_kind_of(e, rb_cDLPtrData)) {
+	  struct ptr_data *pdata;
+	  Data_Get_Struct(e, struct ptr_data, pdata);
+	  ary[i] = (void*)(pdata->ptr);
+	}
+	else{
+	  rb_raise(rb_eDLTypeError, "unexpected type of the element #%d", i);
+	}
       }
       break;
     }
@@ -495,6 +503,12 @@ rb_ary2cary(char t, VALUE v, long *size)
     if (rb_obj_is_kind_of(val0, rb_cDLPtrData)) {
       return (void*)c_parray(v,size);
     }
+    else{
+      val0 = rb_funcall(val0, rb_intern("to_ptr"), 0);
+      if (rb_obj_is_kind_of(val0, rb_cDLPtrData)) {
+        return (void*)c_parray(v,size);
+      }
+    }
     rb_raise(rb_eDLTypeError, "type mismatch");
   case T_NIL:
     return (void*)c_parray(v, size);