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Edit File : node.rb \| Size : 1.92 KB
# frozen_string_literal: true require_relative '../class_loader' require_relative '../scalar_scanner' module Psych module Nodes ### # The base class for any Node in a YAML parse tree. This class should # never be instantiated. class Node include Enumerable # The children of this node attr_reader :children # An associated tag attr_reader :tag # The line number where this node start attr_accessor :start_line # The column number where this node start attr_accessor :start_column # The line number where this node ends attr_accessor :end_line # The column number where this node ends attr_accessor :end_column # Create a new Psych::Nodes::Node def initialize @children = [] end ### # Iterate over each node in the tree. Yields each node to +block+ depth # first. def each &block return enum_for :each unless block_given? Visitors::DepthFirst.new(block).accept self end ### # Convert this node to Ruby. # # See also Psych::Visitors::ToRuby def to_ruby(symbolize_names: false, freeze: false, strict_integer: false) Visitors::ToRuby.create(symbolize_names: symbolize_names, freeze: freeze, strict_integer: strict_integer).accept(self) end alias :transform :to_ruby ### # Convert this node to YAML. # # See also Psych::Visitors::Emitter def yaml io = nil, options = {} require "stringio" real_io = io \|\| StringIO.new(''.encode('utf-8')) Visitors::Emitter.new(real_io, options).accept self return real_io.string unless io io end alias :to_yaml :yaml def alias?; false; end def document?; false; end def mapping?; false; end def scalar?; false; end def sequence?; false; end def stream?; false; end end end end Back

Edit File : node.rb | Size : 1.92 KB

# frozen_string_literal: true
require_relative '../class_loader'
require_relative '../scalar_scanner'

module Psych
  module Nodes
    ###
    # The base class for any Node in a YAML parse tree.  This class should
    # never be instantiated.
    class Node
      include Enumerable

# The children of this node
      attr_reader :children

# An associated tag
      attr_reader :tag

# The line number where this node start
      attr_accessor :start_line

# The column number where this node start
      attr_accessor :start_column

# The line number where this node ends
      attr_accessor :end_line

# The column number where this node ends
      attr_accessor :end_column

# Create a new Psych::Nodes::Node
      def initialize
        @children = []
      end

###
      # Iterate over each node in the tree. Yields each node to +block+ depth
      # first.
      def each &block
        return enum_for :each unless block_given?
        Visitors::DepthFirst.new(block).accept self
      end

###
      # Convert this node to Ruby.
      #
      # See also Psych::Visitors::ToRuby
      def to_ruby(symbolize_names: false, freeze: false, strict_integer: false)
        Visitors::ToRuby.create(symbolize_names: symbolize_names, freeze: freeze, strict_integer: strict_integer).accept(self)
      end
      alias :transform :to_ruby

###
      # Convert this node to YAML.
      #
      # See also Psych::Visitors::Emitter
      def yaml io = nil, options = {}
        require "stringio"
        real_io = io || StringIO.new(''.encode('utf-8'))

Visitors::Emitter.new(real_io, options).accept self
        return real_io.string unless io
        io
      end
      alias :to_yaml :yaml

def alias?;    false; end
      def document?; false; end
      def mapping?;  false; end
      def scalar?;   false; end
      def sequence?; false; end
      def stream?;   false; end
    end
  end
end

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