1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2022-11-09 12:17:21 -05:00
ruby--ruby/lib/rubygems/core_ext/kernel_warn.rb
Thomas E. Enebo 420bdba139 [rubygems/rubygems] Allow upcoming JRuby to pass keywords for Kernel#warn
jruby-head (which will be JRuby 9.4.0.0) can now properly process
the keywords to Kernel#warn.  I cannot think of any capability based
test for this so I constrained it using a version guard.  Only JRuby
will ever hit the version guard.

https://github.com/rubygems/rubygems/commit/cd468c7e0f
2022-10-22 08:01:24 +00:00

54 lines
1.3 KiB
Ruby

# frozen_string_literal: true
# `uplevel` keyword argument of Kernel#warn is available since ruby 2.5.
if RUBY_VERSION >= "2.5" && !Gem::KERNEL_WARN_IGNORES_INTERNAL_ENTRIES
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
if path = loc.path
unless path.start_with?(rubygems_path) || path.start_with?("<internal:")
# Non-rubygems frames
uplevel -= 1
end
end
end
kw[:uplevel] = start
end
original_warn.bind(self).call(*messages, **kw)
}
end
end