diff options
| author | knu <knu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2009-03-20 09:43:24 +0000 |
|---|---|---|
| committer | knu <knu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2009-03-20 09:43:24 +0000 |
| commit | f1f12658ee64d443e17cd7e39e12556123580817 (patch) | |
| tree | 36a6efd9d63db4a12438ec4af5330cfb04aa9168 /string.c | |
| parent | 885b6c6ecf10eb14f27d4fc78e383fcf71f01bac (diff) | |
* array.c (Array#try_convert): New method backported from 1.9.
* hash.c (Hash#try_convert): New method backported from 1.9.
* io.c (IO#try_convert): New method backported from 1.9.
* re.c (Regexp#try_convert): New method backported from 1.9.
* string.c (String#try_convert): New method backported from 1.9.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@23018 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'string.c')
| -rw-r--r-- | string.c | 19 |
1 files changed, 19 insertions, 0 deletions
@@ -614,6 +614,24 @@ rb_check_string_type(str) return str; } +/* + * call-seq: + * String.try_convert(obj) -> string or nil + * + * Try to convert <i>obj</i> into a String, using to_str method. + * Returns converted regexp or nil if <i>obj</i> cannot be converted + * for any reason. + * + * String.try_convert("str") # => str + * String.try_convert(/re/) # => nil + */ +static VALUE +rb_str_s_try_convert(dummy, str) + VALUE dummy, str; +{ + return rb_check_string_type(str); +} + VALUE rb_str_substr(str, beg, len) VALUE str; @@ -5003,6 +5021,7 @@ Init_String() rb_include_module(rb_cString, rb_mComparable); rb_include_module(rb_cString, rb_mEnumerable); rb_define_alloc_func(rb_cString, rb_str_s_alloc); + rb_define_singleton_method(rb_cString, "try_convert", rb_str_s_try_convert, 1); rb_define_method(rb_cString, "initialize", rb_str_init, -1); rb_define_method(rb_cString, "initialize_copy", rb_str_replace, 1); rb_define_method(rb_cString, "<=>", rb_str_cmp_m, 1); |