diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | vm_eval.c | 6 |
2 files changed, 10 insertions, 1 deletions
@@ -1,3 +1,8 @@ +Thu May 20 22:08:28 2010 Yusuke Endoh <mame@tsg.ne.jp> + + * vm_eval.c (rb_f_caller): update rdoc. a patch from Nobuhiro IMAI + <nov at yo.rim.or.jp> in [ruby-dev:41348]. + Thu May 20 22:04:05 2010 Yusuke Endoh <mame@tsg.ne.jp> * vm.c (vm_backtrace_each): now takes an init function to distinguish @@ -1536,7 +1536,7 @@ rb_catch_obj(VALUE tag, VALUE (*func)(), VALUE data) /* * call-seq: - * caller(start=1) -> array + * caller(start=1) -> Array or nil * * Returns the current execution stack---an array containing strings in * the form ``<em>file:line</em>'' or ``<em>file:line: in @@ -1544,6 +1544,9 @@ rb_catch_obj(VALUE tag, VALUE (*func)(), VALUE data) * determines the number of initial stack entries to omit from the * result. * + * Returns +nil+ if _start_ is greater than or equal to the size of + * current execution stack. + * * def a(skip) * caller(skip) * end @@ -1557,6 +1560,7 @@ rb_catch_obj(VALUE tag, VALUE (*func)(), VALUE data) * c(1) #=> ["prog:5:in `b'", "prog:8:in `c'", "prog:11"] * c(2) #=> ["prog:8:in `c'", "prog:12"] * c(3) #=> ["prog:13"] + * c(4) #=> nil */ static VALUE |