# Lambda {|(v0,v1),v2|}.call(\[1\],2)

**URL:** <https://www.ruby-forum.com/t/lambda-v0-v1-v2-call-1-2/112388>\
**Category:** Development\
**Created:** [August 18, 2007, 6:34am UTC](https://www.ruby-forum.com/t/lambda-v0-v1-v2-call-1-2/112388 "2007-08-18T06:34:19Z")\
**Posts on this page:** 8\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [August 18, 2007, 6:34am UTC](https://www.ruby-forum.com/t/lambda-v0-v1-v2-call-1-2/112388/1 "2007-08-18T06:34:19Z")

</div>

e$B0J2\<$NNc$Oe(B ArgumentError e$B$K$J$j$^$;$s!#e(B

% ./ruby -ve ‘lambda {|(v0,v1),v2| p [v0,v1,v2]}.call([1],2)’  
ruby 1.9.0 (2007-08-18 patchlevel 0) [i686-linux]  
[1, nil, 2]

[ruby-dev:29616] e$B$rEv$F$kA0$Ne(B matzruby e$B$G$Oe(B ArgumentError  
e$B$Ge(B  
e$B$9!#e(B

% bin/ruby -ve ‘lambda {|(v0,v1),v2| p  
[v0,v1,v2]}.call([1],2)’  
ruby 1.9.0 (2006-09-27) [i686-linux]  
-e:1: wrong number of arguments (1 for 2) (ArgumentError)  
from -e:1  
from -e:1:in `Proc#call’  
from -e:1

[ruby-dev:29616] e$B$rEv$F$?$b$N$G$be(B ArgumentError e$B$G$9!#e(B

% bin/ruby -ve ‘lambda {|(v0,v1),v2| p [v0,v1,v2]}.call([1],2)’  
ruby 1.9.0 (2006-09-27) [i686-linux]  
-e:1: wrong number of arguments (1 for 2) (ArgumentError)  
from -e:1  
from -e:1:in `Proc#call’  
from -e:1

1.8 e$B$G$be(B ArgumentError e$B$K$J$j$^$9!#e(B

% ruby-1.8 -ve ‘lambda {|(v0,v1),v2| p [v0,v1,v2]}.call([1],2)’  
ruby 1.8.6 (2007-08-16 patchlevel 5000) [i686-linux]  
-e:1: wrong number of arguments (1 for 2) (ArgumentError)  
from -e:1:in `call’  
from -e:1

lambda e$B$re(B call  
e$B$7$?:]$N0z?t$N?t$N8!::$N87L)2=$,%M%9%H$7$?0z?te(B  
e$B$NItJ,$K$b:F5"E\*$KE,MQ$5$l$k$+$I$&$+$,0[$J$k$N$@$H;W$&$N$G$9e(B  
e$B$,!"$3$l$C$F5DO@$7$?$3$H$"$j$^$7$?$C$1e(B?

---

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [August 18, 2007, 7:03am UTC](https://www.ruby-forum.com/t/lambda-v0-v1-v2-call-1-2/112388/2 "2007-08-18T07:03:20Z")

</div>

e$B!!$5$5$@$G$9!#e(B

Tanaka A. wrote:

> e$B0J2\<$NNc$Oe(B ArgumentError e$B$K$J$j$^$;$s!#e(B
> 
> % ./ruby -ve ‘lambda {|(v0,v1),v2| p [v0,v1,v2]}.call([1],2)’  
> ruby 1.9.0 (2007-08-18 patchlevel 0) [i686-linux]  
> [1, nil, 2]  
> …  
> lambda e$B$re(B call e$B$7$?:]$N0z?t$N?t$N8!::$N87L)2=$,%M%9%H$7$?0z?te(B  
> e$B$NItJ,$K$b:F5"E\*$KE,MQ$5$l$k$+$I$&$+$,0[$J$k$N$@$H;W$&$N$G$9e(B  
> e$B$,!"$3$l$C$F5DO@$7$?$3$H$"$j$^$7$?$C$1e(B?

e$B!!5DO@$7$F$$$J$$$H;W$$$^$9!#e(B

e$B!!\<BAuB&$N0U8+$H$7$F$O!"$3$l$r87L)$K%A%’%C%/$9$k$h$&$K$9$k$N$O$H$F$be(B  
e$B$H$F$bBgJQ$J$N$G!“7y$@$J$!!”$H;W$$$^$9!#e(B

e$B!!;EMME\*$K$O$I$&$J$s$G$7$g$&$M!#87L)$K$7$F$b$i$&$H4r$7$$Nc$C$F$"$k$se(B  
e$B$@$m$&$+!#e(B

e$B!!$A$J$\_$K!“e(Blambda  
e$B4X78$J$/$F$U$D$&$N%a%=%C%I$G$b$G$-$k$s$G$9$,!”$3e(B  
e$B$l$O$I$&$J$s$G$7$g$&!#e(B

def m((a, b), c)  
p [a, b, c]  
end

m([], 1)  
m([1], 2)  
m([1, 2], 3)  
m([1, 2, 3], 4)

#=\>  
[nil, nil, 1]  
[1, nil, 2]  
[1, 2, 3]  
[1, 2, 4]

---

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [August 18, 2007, 8:17am UTC](https://www.ruby-forum.com/t/lambda-v0-v1-v2-call-1-2/112388/3 "2007-08-18T08:17:24Z")

</div>

In article [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid),  
SASADA Koichi [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes:

> e$B!!5DO@$7$F$$$J$$$H;W$$$^$9!#e(B

e$B$d$O$j!#e(B

> e$B!!\<BAuB&$N0U8+$H$7$F$O!"$3$l$r87L)$K%A%'%C%/$9$k$h$&$K$9$k$N$O$H$F$be(B  
> e$B$H$F$bBgJQ$J$N$G!“7y$@$J$!!”$H;W$$$^$9!#e(B

e$B$J$k$[$I!#e(B

> e$B!!;EMME\*$K$O$I$&$J$s$G$7$g$&$M!#87L)$K$7$F$b$i$&$H4r$7$$Nc$C$F$"$k$se(B  
> e$B$@$m$&$+!#e(B

e$B;d$,e(B [ruby-dev:29616] e$B$G$$$8$C$?$H$-$K$=$&$7$?$N$O$?$V$s$b$He(B  
e$B$b$H$=$&$J$C$F$$$?$+$i$G!“L@3N$JM}M3$,$”$C$F$=$&$7$?$o$1$G$Oe(B  
e$B$J$$$G$9!#$\*$=$i$/!#e(B

> e$B!!$A$J$\_$K!“e(Blambda e$B4X78$J$/$F$U$D$&$N%a%=%C%I$G$b$G$-$k$s$G$9$,!”$3e(B  
> e$B$l$O$I$&$J$s$G$7$g$&!#e(B
> 
> def m((a, b), c)  
> p [a, b, c]  
> end

e$B$s!\<!“$3$l$C$F$$$D$+$i$G$-$k$h$&$K$J$C$?$s$G$9$+e(B?  
e$B5DO@$,$”$j$^$7$?$C$1e(B?

e$B5nG/$Ne(B 9e$B7n$O$G$-$^$;$s$G$7$?$h$M!#e(B

% bin/ruby -ve ‘def m((a, b), c) end’  
ruby 1.9.0 (2006-09-27) [i686-linux]  
-e:1: syntax error, unexpected tLPAREN, expecting ‘)’  
def m((a, b), c) end  
^  
-e:1: syntax error, unexpected ‘)’, expecting ‘=’  
def m((a, b), c) end  
^

---

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [August 18, 2007, 8:25am UTC](https://www.ruby-forum.com/t/lambda-v0-v1-v2-call-1-2/112388/4 "2007-08-18T08:25:25Z")

</div>

e$B!!$5$5$@$G$9!#e(B

Tanaka A. wrote:

> e$B$s!\<!"$3$l$C$F$$$D$+$i$G$-$k$h$&$K$J$C$?$s$G$9$+e(B?  
> e$B5DO@$,$"$j$^$7$?$C$1e(B?

e$B!!$?$V$sL5$+$C$?$s$8$c$J$$$G$7$g$&$+!#$$$D$N4V$K$+$G$-$F$$$?46$8!#0le(B  
e$BEY$^$D$b$H$5$s$KJ9$$$F$\_$?$3$H$,$"$C$?$h$&$J!#e(B

---

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [August 18, 2007, 9:05am UTC](https://www.ruby-forum.com/t/lambda-v0-v1-v2-call-1-2/112388/5 "2007-08-18T09:05:26Z")

</div>

In article [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid),  
SASADA Koichi [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes:

> e$B!!$?$V$sL5$+$C$?$s$8$c$J$$$G$7$g$&$+!#$$$D$N4V$K$+$G$-$F$$$?46$8!#0le(B  
> e$BEY$^$D$b$H$5$s$KJ9$$$F$\_$?$3$H$,$"$C$?$h$&$J!#e(B

e$B$3$l!"e(Btrunk e$B$G$Oe(B r12117 e$B$Ne(B half-baked-1.9 e$B$Ne(B  
merge e$B$G$9$M!#e(B  
f\_arg e$B$,e(B  
f\_norm\_arg e$B$Ne(B comma separated list e$B$+$ie(B  
f\_arg\_item e$B$Ne(B comma separated list e$B$KJQ2=$7$F$^$9!#e(B

half-baked-1.9 e$B$@$He(B r11888 e$B$G$9$,!"e(B

Revision 11888 - (view) (download) (annotate) - [select for diffs]  
Modified Mon Feb 26 08:25:28 2007 UTC (5 months, 2 weeks ago) by matz  
File length: 194174 byte(s)  
Diff to previous 11886

r5@x31: matz | 2007-02-26 17:25:35 +0900

- parse.y, node.h: update to the latest.

e$B$H$$$&$N$,%m%0$\_$?$$$G$9!#e(B

e$B$G!"e(Bthe latest e$B$C$F$I$3$N:G?7$G$9$+$Me(B?  
x31 e$B$N:G?7e(B?

e$B$7$+$7!“2\>0z?t$N$H$3$m$r3HD%$9$k$J$i!”$“$s$^$j$D$+$($J$$G[Nse(B  
e$B$NJ,2r$h$j$O!”$`$7$me(B (e$B;DG0$J$,$i6X;\_$NJ}8~$K$"$k$1$l$Ie(B)  
e$B%$%se(B  
e$B%9%?%s%9JQ?t$H$+$r;H$($k$N$r3HBg$7$F$[$7$$$H$3$m$G$9$,!#e(B

---

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [August 18, 2007, 11:38am UTC](https://www.ruby-forum.com/t/lambda-v0-v1-v2-call-1-2/112388/6 "2007-08-18T11:38:36Z")

</div>

e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B

In message “Re: [ruby-dev:31476] Re: lambda {|(v0,v1),v2|}.call([1],2)”  
on Sat, 18 Aug 2007 14:02:38 +0900, SASADA Koichi [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
writes:

|\> lambda e$B$re(B call e$B$7$?:]$N0z?t$N?t$N8!::$N87L)2=$,%M%9%H$7$?0z?te(B  
|\> e$B$NItJ,$K$b:F5"E\*$KE,MQ$5$l$k$+$I$&$+$,0[$J$k$N$@$H;W$&$N$G$9e(B  
|\> e$B$,!“$3$l$C$F5DO@$7$?$3$H$”$j$^$7$?$C$1e(B?  
|  
|e$B!!5DO@$7$F$$$J$$$H;W$$$^$9!#e(B

e$B$7$F$J$+$C$?$C$1!#e(B

|e$B!!\<BAuB&$N0U8+$H$7$F$O!"$3$l$r87L)$K%A%'%C%/$9$k$h$&$K$9$k$N$O$H$F$be(B  
|e$B$H$F$bBgJQ$J$N$G!“7y$@$J$!!”$H;W$$$^$9!#e(B

e$B$+$C$3$NFbB&$OB?=EBeF~$G!"$H$$$&$h$&$JOC$r$7$?$h$&$J5$$,$7$Fe(B  
e$B$k$s$@$1$I!"GrCkL4$+$J!#e(B

---

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [August 19, 2007, 5:44am UTC](https://www.ruby-forum.com/t/lambda-v0-v1-v2-call-1-2/112388/7 "2007-08-19T05:44:32Z")

</div>

e$B!!$5$5$@$G$9!#e(B

Yukihiro M. wrote:

> |e$B!!\<BAuB&$N0U8+$H$7$F$O!"$3$l$r87L)$K%A%’%C%/$9$k$h$&$K$9$k$N$O$H$F$be(B  
> |e$B$H$F$bBgJQ$J$N$G!“7y$@$J$!!”$H;W$$$^$9!#e(B
> 
> e$B$+$C$3$NFbB&$OB?=EBeF~$G!"$H$$$&$h$&$JOC$r$7$?$h$&$J5$$,$7$Fe(B  
> e$B$k$s$@$1$I!"GrCkL4$+$J!#e(B

e$B!!$"!"e(BML e$B0J30$G$O$7$F$?$+$b!#e(B

e$B!!$H$j$"$($:!"B?=EBeF~$K$7$F$b$i$($k$H4r$7$$$G$9$M$’!#e(B

---

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [August 19, 2007, 9:30am UTC](https://www.ruby-forum.com/t/lambda-v0-v1-v2-call-1-2/112388/8 "2007-08-19T09:30:47Z")

</div>

In article [E1IMKkq-0004Sf-LI@x31](mailto:E1IMKkq-0004Sf-LI@x31),  
Yukihiro M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes:

> e$B$+$C$3$NFbB&$OB?=EBeF~$G!"$H$$$&$h$&$JOC$r$7$?$h$&$J5$$,$7$Fe(B  
> e$B$k$s$@$1$I!"GrCkL4$+$J!#e(B

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e$B;d$b$=$&$7$F$[$7$$;v\>p$,$”$k$o$1$G$O$J$$$N$G$H$/$KLdBj$O$"$je(B  
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e$B$?$@!"B?=EBeF~$H$$$&8@MU$O$3$N5!G=$KBP$7$FITE,@Z$@$H;W$$$^$9!#e(B

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- e$B1&JU$KBP1~$9$k\<0$,B8:\_$7$J$$\>l9g$,$"$ke(B:  
yield v e$B$Ge(B {|a, (b, c)|} e$B$H$+$Oe(B b, c e$B$KBP1~$9$kCMe(B  
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