1 files changed, 19 insertions, 0 deletions
diff --git a/ext/psych/lib/psych/deprecated.rb b/ext/psych/lib/psych/deprecated.rb
new file mode 100644
index 0000000000..5a96e91154
--- /dev/null
+++ b/ext/psych/lib/psych/deprecated.rb
@@ -0,0 +1,19 @@
+module Psych
+  module DeprecatedMethods # :nodoc:
+    attr_accessor :taguri
+    attr_accessor :to_yaml_style
+  end
+
+  def self.quick_emit thing, opts = {}, &block # :nodoc:
+    warn "#{caller[0]}: YAML.quick_emit is deprecated" if $VERBOSE && !caller[0].start_with?(File.dirname(__FILE__))
+    target = eval 'self', block.binding
+    target.extend DeprecatedMethods
+    metaclass = class << target; self; end
+    metaclass.send(:define_method, :encode_with) do |coder|
+      target.taguri        = coder.tag
+      target.to_yaml_style = coder.style
+      block.call coder
+    end
+    target.psych_to_yaml unless opts[:nodump]
+  end
+end