mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
3e92b635fb
When you change this to true, you may need to add more tests. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53141 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
77 lines
2.1 KiB
Ruby
77 lines
2.1 KiB
Ruby
# frozen_string_literal: false
|
|
# :stopdoc:
|
|
|
|
# Hack to handle syck's DefaultKey bug
|
|
#
|
|
# This file is always loaded AFTER either syck or psych are already
|
|
# loaded. It then looks at what constants are available and creates
|
|
# a consistent view on all rubys.
|
|
#
|
|
# All this is so that there is always a YAML::Syck::DefaultKey
|
|
# class no matter if the full yaml library has loaded or not.
|
|
#
|
|
|
|
module YAML # :nodoc:
|
|
# In newer 1.9.2, there is a Syck toplevel constant instead of it
|
|
# being underneath YAML. If so, reference it back under YAML as
|
|
# well.
|
|
if defined? ::Syck
|
|
# for tests that change YAML::ENGINE
|
|
# 1.8 does not support the second argument to const_defined?
|
|
remove_const :Syck rescue nil
|
|
|
|
Syck = ::Syck
|
|
|
|
# JRuby's "Syck" is called "Yecht"
|
|
elsif defined? YAML::Yecht
|
|
Syck = YAML::Yecht
|
|
|
|
# Otherwise, if there is no YAML::Syck, then we've got just psych
|
|
# loaded, so lets define a stub for DefaultKey.
|
|
elsif !defined? YAML::Syck
|
|
module Syck
|
|
class DefaultKey # :nodoc:
|
|
end
|
|
end
|
|
end
|
|
|
|
# Now that we've got something that is always here, define #to_s
|
|
# so when code tries to use this, it at least just shows up like it
|
|
# should.
|
|
module Syck
|
|
class DefaultKey
|
|
remove_method :to_s rescue nil
|
|
|
|
def to_s
|
|
'='
|
|
end
|
|
end
|
|
end
|
|
|
|
SyntaxError = Error unless defined? SyntaxError
|
|
end
|
|
|
|
# Sometime in the 1.9 dev cycle, the Syck constant was moved from under YAML
|
|
# to be a toplevel constant. So gemspecs created under these versions of Syck
|
|
# will have references to Syck::DefaultKey.
|
|
#
|
|
# So we need to be sure that we reference Syck at the toplevel too so that
|
|
# we can always load these kind of gemspecs.
|
|
#
|
|
if !defined?(Syck)
|
|
Syck = YAML::Syck
|
|
end
|
|
|
|
# Now that we've got Syck setup in all the right places, store
|
|
# a reference to the DefaultKey class inside Gem. We do this so that
|
|
# if later on YAML, etc are redefined, we've still got a consistent
|
|
# place to find the DefaultKey class for comparison.
|
|
|
|
module Gem
|
|
# for tests that change YAML::ENGINE
|
|
remove_const :SyckDefaultKey if const_defined? :SyckDefaultKey
|
|
|
|
SyckDefaultKey = YAML::Syck::DefaultKey
|
|
end
|
|
|
|
# :startdoc:
|