Make RipperParser support beginless and endless ranges

lib/yard/parser/ruby/ruby_parser.rb

@@ -242,8 +242,8 @@ def visit_event(node)
  if node.respond_to?(:block)
  sr = node.block.source_range
  lr = node.block.line_range
- node.block.source_range = Range.new(sr.first, @tokens.last[2][1] - 1)
- node.block.line_range = Range.new(lr.first, @tokens.last[2][0])
+ node.block.source_range = Range.new(sr.begin, @tokens.last[2][1] - 1)
+ node.block.line_range = Range.new(lr.begin, @tokens.last[2][0])
  end
  node
  end
@@ -272,14 +272,14 @@ def add_token(token, data)
  if @percent_ary
  if token == :words_sep && data !~ /\s\z/
  rng = @percent_ary.source_range
- rng = Range.new(rng.first, rng.last + data.length)
+ rng = Range.new(rng.begin, rng.end.to_i + data.length)
  @percent_ary.source_range = rng
  @tokens << [token, data, [lineno, charno]]
  @percent_ary = nil
  return
  elsif token == :tstring_end && data =~ /\A\s/
  rng = @percent_ary.source_range
- rng = Range.new(rng.first, rng.last + data.length)
+ rng = Range.new(rng.begin, rng.end.to_i + data.length)
  @percent_ary.source_range = rng
  @tokens << [token, data, [lineno, charno]]
  @percent_ary = nil
@@ -377,8 +377,8 @@ def on_unary(op, val)
  def on_aref(*args)
  @map[:lbracket].pop
  ll, lc = *@map[:aref].shift
- sr = args.first.source_range.first..lc
- lr = args.first.line_range.first..ll
+ sr = args.first.source_range.begin..lc
+ lr = args.first.line_range.begin..ll
  AstNode.new(:aref, args, :char => sr, :line => lr)
  end
 
@@ -449,8 +449,8 @@ def on_const_path_ref(*args)
  def on_#{kw}(*args)
  mapping = @map[#{kw.to_s.sub(/_mod$/, '').inspect}]
  mapping.pop if mapping
- sr = args.last.source_range.first..args.first.source_range.last
- lr = args.last.line_range.first..args.first.line_range.last
+ sr = args.last.source_range.begin..args.first.source_range.end
+ lr = args.last.line_range.begin..args.first.line_range.end
  #{node_class}.new(:#{kw}, args, :line => lr, :char => sr)
  end
  eof
@@ -473,8 +473,8 @@ def on_#{kw}_new(*args)
  begin; undef on_#{kw}_add; rescue NameError; end
  def on_#{kw}_add(list, item)
  last = @source[@ns_charno,1] == "\n" ? @ns_charno - 1 : @ns_charno
- list.source_range = (list.source_range.first..last)
- list.line_range = (list.line_range.first..lineno)
+ list.source_range = (list.source_range.begin..last)
+ list.line_range = (list.line_range.begin..lineno)
  list.push(item)
  list
  end
@@ -485,9 +485,9 @@ def on_string_literal(*args)
  node = visit_event_arr(LiteralNode.new(:string_literal, args))
  if args.size == 1
  r = args[0].source_range
- if node.source_range != Range.new(r.first - 1, r.last + 1)
+ if node.source_range != Range.new(r.begin - 1, r.end + 1)
  klass = AstNode.node_class_for(node[0].type)
- r = Range.new(node.source_range.first + 1, node.source_range.last - 1)
+ r = Range.new(node.source_range.begin + 1, node.source_range.end - 1)
  node[0] = klass.new(node[0].type, [@source[r]], :line => node.line_range, :char => r)
  end
  end
@@ -573,7 +573,7 @@ def on_comment(comment)
  @comments_flags[lineno] = @comments_flags[lineno - 1]
  @comments_flags.delete(lineno - 1)
  range = @comments_range.delete(lineno - 1)
- source_range = range.first..source_range.last
+ source_range = range.begin..source_range.end
  comment = append_comment + "\n" + comment
  end
 
@@ -627,11 +627,13 @@ def insert_comments
  end
 
  # check upwards from line before node; check node's line at the end
- ((node.line - 1).downto(node.line - 2).to_a + [node.line]).each do |line|
- comment = @comments[line]
- if comment && !comment.empty?
- add_comment(line, node)
- break
+ if (n_l = node.line)
+ ((n_l - 1).downto(n_l - 2).to_a + [n_l]).each do |line|
+ comment = @comments[line]
+ if comment && !comment.empty?
+ add_comment(line, node)
+ break
+ end
  end
  end