Backport #8884: `caller(1, nil)` raises a runtime error while its reference says its signature as `caller(start=1, length=nil)`

• Status: Closed
• Assignee: nagachika (Tomoyuki Chikanaga)

[gfx (Goro FUJI)]

$ ruby -e 'caller(1, nil)'
-e:1:in caller': no implicit conversion from nil to integer (TypeError) from -e:1:in '

Either the behaviour or the document looks wrong; I don't know which is wrong, though.

[sorah (Sorah Fukumori)]

• Status changed from Open to Assigned
• Assignee set to ko1 (Koichi Sasada)

This patch fixes: https://gist.github.com/sorah/6503895

I'll commit this if doc is correct.

[nobu (Nobuyoshi Nakada)]

Seems fine.

[sorah (Sorah Fukumori)]

• Status changed from Assigned to Closed
• % Done changed from 0 to 100

This issue was solved with changeset r42905.
Goro, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

• vm_backtrace.c (vm_backtrace_to_ary): Ignore the second argument if
  it is nil. [Bug #8884] [ruby-core:57094]

• test/ruby/test_backtrace.rb (test_caller_with_nil_length):
  Test for above.

[sorah (Sorah Fukumori)]

• Backport changed from 1.9.3: UNKNOWN, 2.0.0: UNKNOWN to 1.9.3: UNKNOWN, 2.0.0: REQUIRED

documentation on 2.0.0 is same, so flagging as backport onto 2.0.0 needed.

[nagachika (Tomoyuki Chikanaga)]

• Tracker changed from Bug to Backport
• Project changed from Ruby master to Backport200
• Status changed from Closed to Assigned
• Assignee changed from ko1 (Koichi Sasada) to nagachika (Tomoyuki Chikanaga)

On 1.9.3, Kernel#caller has only one argument.
I will move this ticket to Backport 200.

[nagachika (Tomoyuki Chikanaga)]

• Status changed from Assigned to Closed

This issue was solved with changeset r42925.
Goro, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

merge revision(s) 42905: [Backport #8884]

* vm_backtrace.c (vm_backtrace_to_ary): Ignore the second argument if
  it is nil. [Bug #8884] [ruby-core:57094]

* test/ruby/test_backtrace.rb (test_caller_with_nil_length):
  Test for above.