# File psych/lib/psych.rb, line 505
def self.dump o, io = nil, options = {}
  if Hash === io
    options = io
    io      = nil
  end

  visitor = Psych::Visitors::YAMLTree.create options
  visitor << o
  visitor.tree.yaml io, options
end
            

 
               # File psych/lib/psych.rb, line 522
def self.dump_stream *objects
  visitor = Psych::Visitors::YAMLTree.create({})
  objects.each do |o|
    visitor << o
  end
  visitor.tree.yaml
end
            

 
               static VALUE libyaml_version(VALUE module)
{
    int major, minor, patch;
    VALUE list[3];

    yaml_get_version(&major, &minor, &patch);

    list[0] = INT2NUM((long)major);
    list[1] = INT2NUM((long)minor);
    list[2] = INT2NUM((long)patch);

    return rb_ary_new4((long)3, list);
}
            

 
               # File psych/lib/psych.rb, line 270
def self.load yaml, legacy_filename = NOT_GIVEN, filename: nil, fallback: false, symbolize_names: false
  if legacy_filename != NOT_GIVEN
    warn_with_uplevel 'Passing filename with the 2nd argument of Psych.load is deprecated. Use keyword argument like Psych.load(yaml, filename: ...) instead.', uplevel: 1 if $VERBOSE
    filename = legacy_filename
  end

  result = parse(yaml, filename: filename)
  return fallback unless result
  result = result.to_ruby if result
  symbolize_names!(result) if symbolize_names
  result
end
            

 
               # File psych/lib/psych.rb, line 575
def self.load_file filename, fallback: false
  File.open(filename, 'r:bom|utf-8') { |f|
    self.load f, filename: filename, fallback: fallback
  }
end
            

 
               # File psych/lib/psych.rb, line 553
def self.load_stream yaml, legacy_filename = NOT_GIVEN, filename: nil, fallback: []
  if legacy_filename != NOT_GIVEN
    warn_with_uplevel 'Passing filename with the 2nd argument of Psych.load_stream is deprecated. Use keyword argument like Psych.load_stream(yaml, filename: ...) instead.', uplevel: 1 if $VERBOSE
    filename = legacy_filename
  end

  result = if block_given?
             parse_stream(yaml, filename: filename) do |node|
               yield node.to_ruby
             end
           else
             parse_stream(yaml, filename: filename).children.map(&:to_ruby)
           end

  return fallback if result.is_a?(Array) && result.empty?
  result
end
            

 
               # File psych/lib/psych.rb, line 383
def self.parse yaml, legacy_filename = NOT_GIVEN, filename: nil, fallback: NOT_GIVEN
  if legacy_filename != NOT_GIVEN
    warn_with_uplevel 'Passing filename with the 2nd argument of Psych.parse is deprecated. Use keyword argument like Psych.parse(yaml, filename: ...) instead.', uplevel: 1 if $VERBOSE
    filename = legacy_filename
  end

  parse_stream(yaml, filename: filename) do |node|
    return node
  end

  if fallback != NOT_GIVEN
    warn_with_uplevel 'Passing the `fallback` keyword argument of Psych.parse is deprecated.', uplevel: 1 if $VERBOSE
    fallback
  else
    false
  end
end
            

 
               # File psych/lib/psych.rb, line 405
def self.parse_file filename, fallback: false
  result = File.open filename, 'r:bom|utf-8' do |f|
    parse f, filename: filename
  end
  result || fallback
end
            

 
               # File psych/lib/psych.rb, line 447
def self.parse_stream yaml, legacy_filename = NOT_GIVEN, filename: nil, &block
  if legacy_filename != NOT_GIVEN
    warn_with_uplevel 'Passing filename with the 2nd argument of Psych.parse_stream is deprecated. Use keyword argument like Psych.parse_stream(yaml, filename: ...) instead.', uplevel: 1 if $VERBOSE
    filename = legacy_filename
  end

  if block_given?
    parser = Psych::Parser.new(Handlers::DocumentStream.new(&block))
    parser.parse yaml, filename
  else
    parser = self.parser
    parser.parse yaml, filename
    parser.handler.root
  end
end
            

 
               # File psych/lib/psych.rb, line 414
def self.parser
  Psych::Parser.new(TreeBuilder.new)
end
            

 
               # File psych/lib/psych.rb, line 327
def self.safe_load yaml, legacy_permitted_classes = NOT_GIVEN, legacy_permitted_symbols = NOT_GIVEN, legacy_aliases = NOT_GIVEN, legacy_filename = NOT_GIVEN, permitted_classes: [], permitted_symbols: [], aliases: false, filename: nil, fallback: nil, symbolize_names: false
  if legacy_permitted_classes != NOT_GIVEN
    warn_with_uplevel 'Passing permitted_classes with the 2nd argument of Psych.safe_load is deprecated. Use keyword argument like Psych.safe_load(yaml, permitted_classes: ...) instead.', uplevel: 1 if $VERBOSE
    permitted_classes = legacy_permitted_classes
  end

  if legacy_permitted_symbols != NOT_GIVEN
    warn_with_uplevel 'Passing permitted_symbols with the 3rd argument of Psych.safe_load is deprecated. Use keyword argument like Psych.safe_load(yaml, permitted_symbols: ...) instead.', uplevel: 1 if $VERBOSE
    permitted_symbols = legacy_permitted_symbols
  end

  if legacy_aliases != NOT_GIVEN
    warn_with_uplevel 'Passing aliases with the 4th argument of Psych.safe_load is deprecated. Use keyword argument like Psych.safe_load(yaml, aliases: ...) instead.', uplevel: 1 if $VERBOSE
    aliases = legacy_aliases
  end

  if legacy_filename != NOT_GIVEN
    warn_with_uplevel 'Passing filename with the 5th argument of Psych.safe_load is deprecated. Use keyword argument like Psych.safe_load(yaml, filename: ...) instead.', uplevel: 1 if $VERBOSE
    filename = legacy_filename
  end

  result = parse(yaml, filename: filename)
  return fallback unless result

  class_loader = ClassLoader::Restricted.new(permitted_classes.map(&:to_s),
                                             permitted_symbols.map(&:to_s))
  scanner      = ScalarScanner.new class_loader
  visitor = if aliases
              Visitors::ToRuby.new scanner, class_loader
            else
              Visitors::NoAliasRuby.new scanner, class_loader
            end
  result = visitor.accept result
  symbolize_names!(result) if symbolize_names
  result
end
            

 
               # File psych/lib/psych.rb, line 532
def self.to_json object
  visitor = Psych::Visitors::JSONTree.create
  visitor << object
  visitor.tree.yaml
end