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* class.c (rb_scan_args): Allow specifying the number of trailing

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mandatory arguments right after the number of optional arguments
  only if the number of leading mandatory arguments is not omitted.

* ext/socket/tcpserver.c (tcp_svr_init): Make use of it.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22603 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
knu 2009-02-24 15:41:39 +00:00
parent 02316f11d5
commit 400ded9338
5 changed files with 23 additions and 9 deletions
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7
README.EXT.ja
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@ -1180,16 +1180,17 @@ rb_scan_args(int argc, VALUE *argv, const char *fmt, ...)
--
scan-arg-spec := param-arg-spec [block-arg-spec]
param-arg-spec := pre-arg-spec [post-arg-spec] / post-arg-spec
param-arg-spec := pre-arg-spec [post-arg-spec] / post-arg-spec / pre-opt-post-arg-spec
pre-arg-spec := num-of-leading-mandatory-args [num-of-optional-args]
post-arg-spec := sym-for-variable-length-args [num-of-trailing-mandatory-args]
pre-opt-post-arg-spec := num-of-leading-mandatory-args num-of-optional-args num-of-trailing-mandatory-args
block-arg-spec := sym-for-block-arg
num-of-leading-mandatory-args := DIGIT ; 先頭に置かれる省略不可能な引数の数
num-of-leading-mandatory-args := DIGIT ; 先頭に置かれる省略不能な引数の数
num-of-optional-args := DIGIT ; 続いて置かれる省略可能な引数の数
sym-for-variable-length-args := "*" ; 続いて置かれる可変長引数を
; Rubyの配列で取得するための指定
num-of-trailing-mandatory-args := DIGIT ; 終端に置かれる省略不可能な引数の数
num-of-trailing-mandatory-args := DIGIT ; 終端に置かれる省略不能な引数の数
sym-for-block-arg := "&" ; イテレータブロックを取得するための
; 指定
--