Bug #14262: ArgumentError (negative level (-1)) when `warn "test message", uplevel: -2`

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.6.0dev (2017-12-30 trunk 61515) [x86_64-darwin16]
• Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN

[znz (Kazuhiro NISHIYAMA)]

When uplevel: -2, error message says negative level (-1).
When uplevel: -1, no exception occur.
What is expected behavior?

% irb -r irb/completion --simple-prompt
>> warn("test", uplevel: -1)
(irb):1: warning: test
=> nil
>> warn("test", uplevel: -2)
Traceback (most recent call last):
        3: from bin/irb:11:in `<main>'
        2: from (irb):2
        1: from (irb):2:in `warn'
ArgumentError (negative level (-1))
>> warn("test", uplevel: 0)
(irb):3: warning: test
=> nil
>> warn("test", uplevel: 1)

[znz (Kazuhiro NISHIYAMA)]

• Related to Feature #12882: Add caller/file/line information to internal Kernel#warn calls added

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset trunk|r61525.

---

error.c: negative uplevel

• error.c (rb_warn_m): negative uplevel is not allowed.
  [ruby-core:84568] [Bug #14262]