win32ole.c: fix symbol condition

nobu · nobu · commit 4dcdbb4afcd9 · 2015-09-21T15:46:44.000Z
* ext/win32ole/win32ole.c (fole_missing): fix symbol condition,
  rb_check_symbol returns Qnil when the symbol is not interned.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51915 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
diff --git a/ext/win32ole/win32ole.c b/ext/win32ole/win32ole.c
@@ -3283,7 +3283,7 @@ fole_missing(int argc, VALUE *argv, VALUE self)
     rb_check_arity(argc, 1, UNLIMITED_ARGUMENTS);
     mid = argv[0];
     sym = rb_check_symbol(&mid);
-    if (sym) mid = rb_sym2str(sym);
+    if (!NIL_P(sym)) mid = rb_sym2str(sym);
     mname = StringValueCStr(mid);
     if(!mname) {
         rb_raise(rb_eRuntimeError, "fail: unknown method or property");
