# Autoload\_delete

**URL:** <https://www.ruby-forum.com/t/autoload-delete/119333>\
**Category:** Development\
**Created:** [November 6, 2007, 4:41am UTC](https://www.ruby-forum.com/t/autoload-delete/119333 "2007-11-06T04:41:44Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![Hidetoshi\_NAGAI](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/49beb7/32.png) [@Hidetoshi\_NAGAI](https://www.ruby-forum.com/u/Hidetoshi_NAGAI)\
**Post date:** [November 6, 2007, 4:41am UTC](https://www.ruby-forum.com/t/autoload-delete/119333/1 "2007-11-06T04:41:44Z")

</div>

e$B1J0f!wCNG=!%6e9)Bg$G$9!%e(B

e$B8=\>u$Ne(B 1.9 e$B$G$O!$e(Bautoload e$BEPO?$7$F$$$k%U%!%$%k$re(B  
e$BL@\<(E\*$Ke(B require e$B$7$h$&$H$9$k$HNc30$,H/@8$7$^$9!%e(B

# 1.8 e$B$G$3$l$r$d$k$H!$BP\>]%U%!%$%k$r#22sFI$s$G$7$^$&$i$7$$$3$H$Ke(B

# e$B=i$a$F5$$,IU$-$^$7$?!%e(B(^\_^;

e$B$3$N;EMM$N\>l9g!$!VMxJX@-$N$?$a$Ke(B autoload  
e$BEPO?$O$7$F$$$k$b$N$N!$e(B  
e$BD\>@\e(B require e$B$9$k?M$b$$$k!W$H$$$&%1!\<%9$G:$$C$F$7$^$$$^$9!%e(B

e$BMW$O!$BP\>]%U%!%$%kCf$NDj?tDj5A$KBP$7$Fe(B autoload  
e$B$,5/F0$7$F$7$^$&$N$,e(B  
e$BLdBj$G$9$+$i!$BP\>]%U%!%$%k$NF,$Ge(B autoload e$BDj5A$r;&$7$F$d$l$Pe(B  
e$BMxMQ\<T$NMxJX@-$rAK32$9$k$3$H$J$/2sHr$G$-$k$O$:$G$9!%e(B  
e$B$7$+$7!$8=\>u$G$OL@\<(E\*$Ke(B autoload e$BDj5A$r\<h$j=|$/%a%=%C%I$,e(B  
e$BB8:\_$7$J$$$h$&$K8+\<u$1$i$l$^$9!%e(B  
e$B$=$3$Ge(B Kernel#autoload\_delete, Module#autoload\_delete e$B$re(B  
e$BDI2C$9$k$H$$$&$N$O$$$+$,$G$7$g$&$+!)e(B

e$B$3$l$rMQ$$$l$P!$Nc$($Pe(B  
----\<zzz.rb\>-----------------------------------------  
autoload\_delete(:ZZZ)

class ZZZ  
$XXX ||= 0  
$XXX += 1  
p $XXX

# … defs …

## end

## e$B$KBP$7$F!$e(B

## autoload(:ZZZ, ‘zzz’) ZZZ.new

## e$B$G$be(B

## require ‘zzz’ ZZZ.new

## e$B$G$be(B

## autoload(:ZZZ, ‘zzz’) require ‘zzz’ ZZZ.new

e$B$G$b%(%i!\<$K$J$i$:$KF0$$$F$/$l$^$9!%e(B

# e$B$D$$$G$K!$e(B1.8 e$B$N$h$&$Ke(B $XXX e$B$,e(B 2

e$B$K$J$C$?$j$9$k$3$H$b$J$/!%e(B(^\_^)

e$B%Q%C%A$r0J2\<$KE:IU$7$^$9!%e(B  
e$B$J$\*!$e(Bautoload(name, nil) e$B$G:o=|$H$$$&$N$b9M$($^$7$?$,!$e(B  
e$BEPO?Ku\>C;~$K0JA0$KEPO?$5$l$F$$$?%U%!%$%k$rJV$7$?J}$,JXMx$He(B  
e$B;W$o$l$^$7$?$N$G!$La$jCM$N@-3J$N0c$$$+$iJL%a%=%C%I$H$7$F$$$^$9!%e(B

* * *

# Index: eval\_load.c

— eval\_load.c (revision 13825)  
+++ eval\_load.c (working copy)  
@@ -512,6 +512,27 @@  
}

/\*

- 
  - call-seq:

- 
  - 

```
mod.autoload_delete(name) => filename or nil

```

- 
  - 

- 
  - Unregisters the autoload definition about _name_.

- 
  - Returns the unregisterd _filename_ (when registered by autoload) or

- 
  - nil (when no registered).

- 
  - 

- 
  - 

```
module A

```

- 
  - 

```
end

```

- 
  - 

```
A.autoload(:B, "b")

```

- 
  - 

```
A.autoload_delete(:B) # returns "b"

```

- 
  - 

```
A.autoload_delete(:C) # returns nil

```

- \*/
- 

+static VALUE  
+rb\_mod\_autoload\_delete(VALUE mod, VALUE sym)  
+{

- return rb\_autoload\_delete(mod, rb\_to\_id(sym));  
+}
- 

+/\*

- MISSING: documentation  
\*/

@@ -543,6 +564,31 @@  
}

/\*

- 
  - call-seq:

- 
  - 

```
autoload_delete(module) => filename or nil

```

- 
  - 

- 
  - Unregisters the autoload definition about _module_.

- 
  - the first time that _module_ (which may be a `String` or

- 
  - a symbol) is accessed.

- 
  - Returns the unregisterd _filename_ (when registered by autoload) or

- 
  - nil (when no registered).

- 
  - 

- 
  - 

```
autoload(:MyModule, "/foo/modules/my_module.rb")

```

- 
  - 

```
autoload_delete(:MyModule) # returns 

```

“/foo/modules/my\_module.rb”

- 
  - 

```
autoload_delete(:MyNoModule) # returns nil

```

- \*/
- 

+static VALUE  
+rb\_f\_autoload\_delete(VALUE mod, VALUE sym)  
+{

- VALUE klass = ruby\_cbase();
- if (NIL\_P(klass)) {
- rb\_raise(rb\_eTypeError, “Can not set autoload on singleton class”);
- }
- return rb\_mod\_autoload\_delete(klass, sym);  
+}
- 

+/\*

- MISSING: documentation  
\*/

@@ -572,8 +618,10 @@  
rb\_define\_global\_function(“load”, rb\_f\_load, -1);  
rb\_define\_global\_function(“require”, rb\_f\_require, 1);  
rb\_define\_method(rb\_cModule, “autoload”, rb\_mod\_autoload, 2);

- rb\_define\_method(rb\_cModule, “autoload\_delete”,  
rb\_mod\_autoload\_delete, 1);  
rb\_define\_method(rb\_cModule, “autoload?”, rb\_mod\_autoload\_p, 1);  
rb\_define\_global\_function(“autoload”, rb\_f\_autoload, 2);

- rb\_define\_global\_function(“autoload\_delete”, rb\_f\_autoload\_delete,  
1);  
rb\_define\_global\_function(“autoload?”, rb\_f\_autoload\_p, 1);

VALUE  
+rb\_autoload\_delete(VALUE klass, ID id)  
+{

- VALUE file;
- NODE \*load = autoload\_delete(klass, id);
- 
- if (!load || !(file = load-\>nd\_lit) ||  
rb\_provided(RSTRING\_PTR(file))) {
- return Qnil;
- }
- return file;  
+}
- 

+VALUE  
rb\_autoload\_p(VALUE mod, ID id)  
{  
struct st\_table \*tbl = RCLASS\_IV\_TBL(mod);

---

<div class="post-metadata">

**Author:** ![Hidetoshi\_NAGAI](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/49beb7/32.png) [@Hidetoshi\_NAGAI](https://www.ruby-forum.com/u/Hidetoshi_NAGAI)\
**Post date:** [November 6, 2007, 9:19am UTC](https://www.ruby-forum.com/t/autoload-delete/119333/2 "2007-11-06T09:19:23Z")

</div>

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Hash: SHA1

Nobuyoshi N. wrote:

> autoloade$B$OF)2aE\*$K;H$($k$Y$-$@;W$&$N$G!"$=$&$$$&2sHrJ}K!$OK\>$^$7e(B  
> e$B$/$O$J$$$H;W$$$^$9$,!"e(Bautoloade$B$r\<h$j=|$/%a%=%C%I$NDI2C\<+BN$K$OH?e(B  
> e$BBP$7$^$;$s!#e(B

autoloade$BMm$\_$G!“e(B[ruby-core:13149]e$B$H$$$&$N$,$”$k$s$G$9$,!"$I$&;W$$$^$9e(B?  
e$B$b$A$m$se(B1.9e$B$G!#e(B

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cQTUvN9OFRZO+CM/gyWwSaz/lFK6hxpG20Wz2T7EQBLYVhqskNdgWiLim84lNOQ/  
NI19ORbnLqMbPivACdNNaTHisEhfeumVrFq3qeJfkDBAEGysMik/ns5Caiyc06fL  
Wn8w9hpCt7MXEJFcYd5mud3wjFrOUA0ND1Kgx1qMfFH0lPfKWPcmuF/mL4T1++3/  
rltj0zMHcLsXeyhknSOEQKKQczSORs0Y3jZThBnG/iCiII0jHtwK0pljwUt1nVfD  
r3c21G4qJCRjDhBOapWdXuW+P3lDLkKJibOtrpW/XHlp5FKF+LIxoQ==  
=Boc+  
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---

<div class="post-metadata">

**Author:** ![Hidetoshi\_NAGAI](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/49beb7/32.png) [@Hidetoshi\_NAGAI](https://www.ruby-forum.com/u/Hidetoshi_NAGAI)\
**Post date:** [November 6, 2007, 8:39am UTC](https://www.ruby-forum.com/t/autoload-delete/119333/3 "2007-11-06T08:39:37Z")

</div>

e$B$J$+$@$G$9!#e(B

At Tue, 6 Nov 2007 12:41:02 +0900,  
Hidetoshi NAGAI wrote in [ruby-dev:32171]:

> e$B8=\>u$Ne(B 1.9 e$B$G$O!$e(Bautoload e$BEPO?$7$F$$$k%U%!%$%k$re(B  
> e$BL@\<(E\*$Ke(B require e$B$7$h$&$H$9$k$HNc30$,H/@8$7$^$9!%e(B

e$B$3$l$Oe(B[ruby-dev:31932]e$B$HF1$8$/%P%0$G$9!#D\>$7$?$D$b$j$@$C$?$s$G$9e(B  
e$B$,!"%3%\_%C%H$7$F$$$^$;$s$G$7$?!#e(B

> # 1.8 e$B$G$3$l$r$d$k$H!$BP\>]%U%!%$%k$r#22sFI$s$G$7$^$&$i$7$$$3$H$Ke(B
> 
> # e$B=i$a$F5$$,IU$-$^$7$?!%e(B(^\_^;

1.8e$B$G$O$=$&$$$&LdBj$O:F8=$G$-$J$$$h$&$J$s$G$9$,!"$$$D$N%P!\<%8%ge(B  
e$B%s$G$7$g$&$+!#e(B

> e$BMW$O!$BP\>]%U%!%$%kCf$NDj?tDj5A$KBP$7$Fe(B autoload e$B$,5/F0$7$F$7$^$&$N$,e(B  
> e$BLdBj$G$9$+$i!$BP\>]%U%!%$%k$NF,$Ge(B autoload e$BDj5A$r;&$7$F$d$l$Pe(B  
> e$BMxMQ\<T$NMxJX@-$rAK32$9$k$3$H$J$/2sHr$G$-$k$O$:$G$9!%e(B  
> e$B$7$+$7!$8=\>u$G$OL@\<(E\*$Ke(B autoload e$BDj5A$r\<h$j=|$/%a%=%C%I$,e(B  
> e$BB8:\_$7$J$$$h$&$K8+\<u$1$i$l$^$9!%e(B  
> e$B$=$3$Ge(B Kernel#autoload\_delete, Module#autoload\_delete e$B$re(B  
> e$BDI2C$9$k$H$$$&$N$O$$$+$,$G$7$g$&$+!)e(B

autoloade$B$OF)2aE\*$K;H$($k$Y$-$@;W$&$N$G!"$=$&$$$&2sHrJ}K!$OK\>$^$7e(B  
e$B$/$O$J$$$H;W$$$^$9$,!"e(Bautoloade$B$r\<h$j=|$/%a%=%C%I$NDI2C\<+BN$K$OH?e(B  
e$BBP$7$^$;$s!#e(B

---

<div class="post-metadata">

**Author:** ![Hidetoshi\_NAGAI](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/49beb7/32.png) [@Hidetoshi\_NAGAI](https://www.ruby-forum.com/u/Hidetoshi_NAGAI)\
**Post date:** [November 6, 2007, 10:52am UTC](https://www.ruby-forum.com/t/autoload-delete/119333/4 "2007-11-06T10:52:21Z")

</div>

e$B1J0f!wCNG=!%6e9)Bg$G$9!%e(B

From: Nobuyoshi N. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
Subject: [ruby-dev:32173] Re: autoload\_delete  
Date: Tue, 6 Nov 2007 16:38:43 +0900  
Message-ID: [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

> e$B$3$l$Oe(B[ruby-dev:31932]e$B$HF1$8$/%P%0$G$9!#D\>$7$?$D$b$j$@$C$?$s$G$9e(B  
> e$B$,!"%3%\_%C%H$7$F$$$^$;$s$G$7$?!#e(B

e$B$"!$$=$&$@$C$?$s$G$9$M!%e(B  
[ruby-dev:31932] e$B$N=$@5$,$J$5$l$J$$$h$&$@$C$?$3$H$K2C$(!$e(B  
e$BN`;wNc$Ge(B 1.8 e$B$GFs=Ee(B load e$B$,H/@8$7$?$b$N$G!$e(B  
e$B!V;EMM!W$H$7$F9M$($J$1$l$P$J$i$J$$$N$+$J$H;W$C$F$N$3$H$G$7$?!%e(B

> > # 1.8 e$B$G$3$l$r$d$k$H!$BP\>]%U%!%$%k$r#22sFI$s$G$7$^$&$i$7$$$3$H$Ke(B
> > 
> > # e$B=i$a$F5$$,IU$-$^$7$?!%e(B(^\_^;
> 
> 1.8e$B$G$O$=$&$$$&LdBj$O:F8=$G$-$J$$$h$&$J$s$G$9$,!"$$$D$N%P!\<%8%ge(B  
> e$B%s$G$7$g$&$+!#e(B

e$B$“$l!)$H;W$C$F$b$&0lEY;n$7$F$\_$?$s$G$9$,!$H/@8\>r7o$,$”$k$h$&$G$9!%e(B

## e$B%F%9%HMQ$N%U%!%$%k$Oe(B ----------\<zzzz.rb\>---------------------------------- class ZZZ $XXX ||= 0 $XXX += 1 p [‘$XXX’, $XXX] end

e$B$G!$e(Bruby e$B$N%P!\<%8%g%s$Oe(B

$ ruby -v  
ruby 1.8.6 (2007-09-26 patchlevel 5000) [i686-linux]

e$B$G$9!%e(B

## e$BNc$($Pe(B

## autoload(:ZZZ, ‘./zzzz.rb’) require ‘zzzz.rb’

## e$B$Oe(B

## [“$XXX”, 1] [“$XXX”, 2]

e$B$H$J$j$^$9!%e(B

## e$B$=$l$KBP$7!$e(B

## autoload(:ZZZ, ‘./zzzz.rb’) require ‘./zzzz.rb’

## e$B$Oe(B

## [“$XXX”, 1]

e$B$G$9!%e(B

## e$B5U$Ke(B

## autoload(:ZZZ, ‘zzzz.rb’) require ‘./zzzz.rb’

## e$B$Oe(B

## [“$XXX”, 1] [“$XXX”, 2]

## e$B$G!$e(B

## autoload(:ZZZ, ‘zzzz.rb’) require ‘zzzz.rb’

## e$B$Oe(B

## [“$XXX”, 1]

e$B$G$9!%e(B

## e$B$^$?!$e(B

## autoload(:ZZZ, “#{Dir.pwd}/zzzz.rb”) require ‘./zzzz.rb’

## e$B$be(B

## [“$XXX”, 1] [“$XXX”, 2]

e$B$K$J$j$^$9!%e(B

e$BF10l@-$N%A%'%C%/$,IT40A4$H$$$&$3$H$G$7$g$&$+!%e(B

> e$BBP$7$^$;$s!#e(B  
> e$B!V2sHr:v!W$K$D$$$F$O;d$N8m2r$+$i$NOC$G$9$N$Ge(B  
> e$BK\>$^$7$/$J$$J}K!$G$“$k$H$$$&$3$H$KF10U$7$^$9!%e(B  
> e$B$7$?$,$C$F!$%P%0$H$7$F=$@5$5$l$k$N$G$”$l$Pe(B  
> autoload\_delete e$B$bI,MW$G$O$"$j$^$;$s!%e(B

# e$B$^$!!$$"$C$F$b$$$$$N$G$O$H$O;W$$$^$9$,!%e(B(^\_^)

---

<div class="post-metadata">

**Author:** ![Hidetoshi\_NAGAI](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/49beb7/32.png) [@Hidetoshi\_NAGAI](https://www.ruby-forum.com/u/Hidetoshi_NAGAI)\
**Post date:** [November 6, 2007, 10:58am UTC](https://www.ruby-forum.com/t/autoload-delete/119333/5 "2007-11-06T10:58:47Z")

</div>

e$B$J$+$@$G$9!#e(B

At Tue, 6 Nov 2007 17:18:37 +0900,  
NAKAMURA, Hiroshi wrote in [ruby-dev:32174]:

> autoloade$BMm$\_$G!“e(B[ruby-core:13149]e$B$H$$$&$N$,$”$k$s$G$9$,!"$I$&;W$$$^$9e(B?  
> e$B$b$A$m$se(B1.9e$B$G!#e(B

autoloade$B$G$O!"%m!\<%I$9$k$H$-$Ne(Bsafe  
levele$B$be(Bautoloade$B$rDj5A$7$?$H$-e(B  
e$B$NCM$r;H$&$3$H$K$J$C$F$$$^$9!#e(B-re$B$de(Brequiree$B$N$h$&$KC1=c$JOC$G$O$9e(B  
e$B$^$J$$$N$G$O$J$$$+$H;W$$$^$9!#e(B

---

<div class="post-metadata">

**Author:** ![Hidetoshi\_NAGAI](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/49beb7/32.png) [@Hidetoshi\_NAGAI](https://www.ruby-forum.com/u/Hidetoshi_NAGAI)\
**Post date:** [November 6, 2007, 11:26am UTC](https://www.ruby-forum.com/t/autoload-delete/119333/6 "2007-11-06T11:26:26Z")

</div>

e$B$J$+$@$G$9!#e(B

At Tue, 6 Nov 2007 18:50:22 +0900,  
Hidetoshi NAGAI wrote in [ruby-dev:32175]:

> e$B$H$J$j$^$9!%e(B  
> e$B$=$l$Oe(Bautoloade$B$H$OL54X78$G$9$M!#e(B  
> require “./zzzz.rb”  
> require “zzzz.rb”  
> e$B$G$bF1$8$G$9!#e(B

> e$BF10l@-$N%A%’%C%/$,IT40A4$H$$$&$3$H$G$7$g$&$+!%e(B

e$B$G$9$M!#e(B1.9e$B$G$Oe(B$LOADED\_FEATURESe$B$K$O%U%k%Q%9$KE83+$5$l$?$b$N$,F~$Ce(B  
e$B$F$$$k$N$G!“e(B”./zzzz.rb"e$B$G$be(B"zzzz.rb"e$B$G$bF10l;k$5$l$^$9$,!#e(B

---

<div class="post-metadata">

**Author:** ![Hidetoshi\_NAGAI](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/49beb7/32.png) [@Hidetoshi\_NAGAI](https://www.ruby-forum.com/u/Hidetoshi_NAGAI)\
**Post date:** [November 6, 2007, 5:04pm UTC](https://www.ruby-forum.com/t/autoload-delete/119333/7 "2007-11-06T17:04:57Z")

</div>

e$B1J0f!wCNG=!%6e9)Bg$G$9!%e(B

From: Nobuyoshi N. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
Subject: [ruby-dev:32177] Re: autoload\_delete  
Date: Tue, 6 Nov 2007 19:25:07 +0900  
Message-ID: [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

> e$B$=$l$Oe(Bautoloade$B$H$OL54X78$G$9$M!#e(B  
> require “./zzzz.rb”  
> require “zzzz.rb”  
> e$B$G$bF1$8$G$9!#e(B

e$B$J$k$[$I!%G\<F@$7$^$7$?!%e(B  
e$B$H$O$$$(!$e(Bautoload e$B$N\>l9g$OD\>@\e(B require  
e$B$7$F$$$k$o$1$G$O$J$$$@$1$K!$e(B  
e$B\<B:]$K0lEY$Ne(B require e$B$GFsEYFI$_9~$^$l$k$N$K=P2q$&$He(B  
e$B$A$g$C$H$S$C$/$j$7$F$7$^$$$^$9$M!%e(B(^_^)

# e$BFsEYFI$_KI;_$?$a$NBP:v$rIU$12C$($F$\*$$$?J}$,$$$$$N$+$J$!!%!%!%e(B

> > e$BF10l@-$N%A%'%C%/$,IT40A4$H$$$&$3$H$G$7$g$&$+!%e(B
> 
> e$B$G$9$M!#e(B1.9e$B$G$Oe(B$LOADED\_FEATURESe$B$K$O%U%k%Q%9$KE83+$5$l$?$b$N$,F~$Ce(B  
> e$B$F$$$k$N$G!“e(B”./zzzz.rb"e$B$G$be(B"zzzz.rb"e$B$G$bF10l;k$5$l$^$9$,!#e(B

e$B$G$O!$e(B1.9 e$B$N\>l9g$K$OH/@8$7$J$$$H9M$($F$h$$$o$1$G$9$M!)e(B

e$BL$%3%\_%C%H$N%P%0=$@5$K$D$$$F$O$h$m$7$/$\*4j$$CW$7$^$9!%e(B