Method: Bindy::Language#_nt_function

Defined in:
lib/bindy/language.rb

#_nt_functionObject



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# File 'lib/bindy/language.rb', line 57

def _nt_function
  start_index = index
  if node_cache[:function].has_key?(index)
    cached = node_cache[:function][index]
    if cached
      node_cache[:function][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_identifier
  s0 << r1
  if r1
    s2, i2 = [], index
    loop do
      r3 = _nt_space
      if r3
        s2 << r3
      else
        break
      end
    end
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    s0 << r2
    if r2
      if (match_len = has_terminal?('(', false, index))
        r4 = true
        @index += match_len
      else
        terminal_parse_failure('\'(\'')
        r4 = nil
      end
      s0 << r4
      if r4
        s5, i5 = [], index
        loop do
          r6 = _nt_space
          if r6
            s5 << r6
          else
            break
          end
        end
        r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
        s0 << r5
        if r5
          r7 = _nt_arg_list
          s0 << r7
          if r7
            s8, i8 = [], index
            loop do
              r9 = _nt_space
              if r9
                s8 << r9
              else
                break
              end
            end
            r8 = instantiate_node(SyntaxNode,input, i8...index, s8)
            s0 << r8
            if r8
              if (match_len = has_terminal?(')', false, index))
                r10 = true
                @index += match_len
              else
                terminal_parse_failure('\')\'')
                r10 = nil
              end
              s0 << r10
            end
          end
        end
      end
    end
  end
  if s0.last
    r0 = instantiate_node(Function,input, i0...index, s0)
    r0.extend(Function0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:function][start_index] = r0

  r0
end