Forum: Ruby-dev IO::NULL; null device path name

F1d6cc2b735bfd82c8773172da2aeab9?d=identicon&s=25 Nobuyoshi Nakada (nobu)
on 2014-05-06 03:29
(Received via mailing list)
Issue #3526 has been updated by Nobuyoshi Nakada.

Description updated

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Feature #3526: IO::NULL; null device path name
https://bugs.ruby-lang.org/issues/3526#change-46559

* Author: Nobuyoshi Nakada
* Status: Closed
* Priority: Low
* Assignee:
* Category:
* Target version:
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なかだです。

`IO::NULL` を追加するのはどうでしょうか。

 ~~~diff
diff --git a/io.c b/io.c
index 05b2d45..3793ae5 100644
--- a/io.c
+++ b/io.c
@@ -9623,6 +9623,18 @@ rb_get_argv(void)
     return ARGF.argv;
 }

+static const char null_device[] =
+#if defined DOSISH
+    "NUL"
+#elif defined AMIGA || defined __amigaos__
+    "NIL"
+#elif defined __VMS
+    "NL:"
+#else
+    "/dev/null"
+#endif
+    ;
+
 /*
  * Document-class: IOError
  *
@@ -9956,6 +9968,8 @@ Init_IO(void)
     rb_define_method(rb_cIO, "autoclose?", rb_io_autoclose_p, 0);
     rb_define_method(rb_cIO, "autoclose=", rb_io_set_autoclose, 1);

+    rb_define_const(rb_cIO, "NULL",
rb_obj_freeze(rb_usascii_str_new2(null_device)));
+
     rb_define_variable("$stdin", &rb_stdin);
     rb_stdin = prep_stdio(stdin, FMODE_READABLE, rb_cIO, "<STDIN>");
     rb_define_hooked_variable("$stdout", &rb_stdout, 0, stdout_setter);
~~~
---
--- 僕の前にBugはない。
--- 僕の後ろにBugはできる。
    中田 伸悦
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