# File lib/treetop/compiler/metagrammar.rb, line 273
      def _nt_module_declaration
        start_index = index
        if node_cache[:module_declaration].has_key?(index)
          cached = node_cache[:module_declaration][index]
          if cached
            cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
            @index = cached.interval.end
          end
          return cached
        end

        i0, s0 = index, []
        i1, s1 = index, []
        if has_terminal?('module', false, index)
          r2 = instantiate_node(SyntaxNode,input, index...(index + 6))
          @index += 6
        else
          terminal_parse_failure('module')
          r2 = nil
        end
        s1 << r2
        if r2
          r3 = _nt_space
          s1 << r3
          if r3
            if has_terminal?('\G[A-Z]', true, index)
              r4 = true
              @index += 1
            else
              r4 = nil
            end
            s1 << r4
            if r4
              s5, i5 = [], index
              loop do
                r6 = _nt_alphanumeric_char
                if r6
                  s5 << r6
                else
                  break
                end
              end
              r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
              s1 << r5
              if r5
                r7 = _nt_space
                s1 << r7
              end
            end
          end
        end
        if s1.last
          r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
          r1.extend(ModuleDeclaration0)
        else
          @index = i1
          r1 = nil
        end
        s0 << r1
        if r1
          i8 = index
          r9 = _nt_module_declaration
          if r9
            r8 = r9
          else
            r10 = _nt_grammar
            if r10
              r8 = r10
            else
              @index = i8
              r8 = nil
            end
          end
          s0 << r8
          if r8
            i11, s11 = index, []
            r12 = _nt_space
            s11 << r12
            if r12
              if has_terminal?('end', false, index)
                r13 = instantiate_node(SyntaxNode,input, index...(index + 3))
                @index += 3
              else
                terminal_parse_failure('end')
                r13 = nil
              end
              s11 << r13
            end
            if s11.last
              r11 = instantiate_node(SyntaxNode,input, i11...index, s11)
              r11.extend(ModuleDeclaration1)
            else
              @index = i11
              r11 = nil
            end
            s0 << r11
          end
        end
        if s0.last
          r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
          r0.extend(ModuleDeclaration2)
          r0.extend(ModuleDeclaration3)
        else
          @index = i0
          r0 = nil
        end

        node_cache[:module_declaration][start_index] = r0

        r0
      end