File: kernel_warn.rb

package info (click to toggle)
ruby3.3 3.3.8-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 153,620 kB
  • sloc: ruby: 1,244,308; ansic: 836,474; yacc: 28,074; pascal: 6,748; sh: 3,913; python: 1,719; cpp: 1,158; makefile: 742; asm: 712; javascript: 394; lisp: 97; perl: 62; awk: 36; sed: 23; xml: 4
file content (49 lines) | stat: -rw-r--r-- 1,111 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
# frozen_string_literal: true

module Kernel
  rubygems_path = "#{__dir__}/" # Frames to be skipped start with this path.

  original_warn = instance_method(:warn)

  remove_method :warn

  class << self
    remove_method :warn
  end

  module_function define_method(:warn) {|*messages, **kw|
    unless uplevel = kw[:uplevel]
      if Gem.java_platform? && RUBY_VERSION < "3.1"
        return original_warn.bind(self).call(*messages)
      else
        return original_warn.bind(self).call(*messages, **kw)
      end
    end

    # Ensure `uplevel` fits a `long`
    uplevel, = [uplevel].pack("l!").unpack("l!")

    if uplevel >= 0
      start = 0
      while uplevel >= 0
        loc, = caller_locations(start, 1)
        unless loc
          # No more backtrace
          start += uplevel
          break
        end

        start += 1

        next unless path = loc.path
        unless path.start_with?(rubygems_path, "<internal:")
          # Non-rubygems frames
          uplevel -= 1
        end
      end
      kw[:uplevel] = start
    end

    original_warn.bind(self).call(*messages, **kw)
  }
end