Lambda for block

Ruby Development
1

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% ./ruby -ve ’
def m(&b)
b.call(&lambda {|x| p x })
end
m {|&b| p b; b.call(1,2,3) }’
ruby 1.9.0 (2007-06-26 patchlevel 0) [i686-linux]
#Proc:0xb7cded50@-e:3
1

2

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Tanaka A. wrote:

1
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3

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SASADA Koichi wrote:

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a = Proc.new{}
def m
Proc.new
end
b = m(&a)

puts [a, b].map{|e| e.object_id}

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4

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In message “Re: [ruby-dev:31129] Re: lambda for block”
on Wed, 4 Jul 2007 05:06:26 +0900, SASADA Koichi [email protected]
writes:

|e$B!!AGKQ$J5?Ld$J$s$G$9$,!"e(B
|
|a = Proc.new{}
|def m
| Proc.new
|end
|b = m(&a)
|
|puts [a, b].map{|e| e.object_id}
|
|e$B!!$H$d$C$?$H$-!“e(Ba == b e$B$H$J$j$^$9!#e(Bproc e$B$de(B lambda e$B$J$iG<F@$N5se(B
|e$BF0$J$N$G$9$,!“e(BProc.new e$B$H$$$&!”!V?7$7$$%$%s%9%?%s%9$r:n$k!W$he(B
|e$B$&$J5$$,$9$k%a%=%C%IL>$G$3$N5sF0$O$I$&$J$s$G$7$g$&$+!#e(B1.8, 1.9
|e$B$GF1$8F0:n$r$7$^$9!#e(B
|
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|e$B7k2L$K$J$j$^$9!#e(B

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