Error: undefined method `line' for nil:NilClass

[gfx]

Patten

!field(_, _, null: _, ...)

This is a useless pattern because of just my mistake, but it causes NoMethoderror and I think it is a bug in querly.

Environment

Ruby 2.5.1
Querly 0.11.0
macOS

Backtrace

Error: undefined method `line' for nil:NilClass
Backtrace:
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/parser-2.5.1.2/lib/parser/source/map.rb:100:in `line'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/cli/console.rb:71:in `block in loop'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/analyzer.rb:35:in `block (2 levels) in find'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:25:in `each_subpair'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:28:in `block in each_subpair'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:27:in `each'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:27:in `each_subpair'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:28:in `block in each_subpair'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:27:in `each'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:27:in `each_subpair'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:28:in `block in each_subpair'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:27:in `each'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:27:in `each_subpair'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:28:in `block in each_subpair'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:27:in `each'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:27:in `each_subpair'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:28:in `block in each_subpair'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:27:in `each'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/node_pair.rb:27:in `each_subpair'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/analyzer.rb:33:in `block in find'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/analyzer.rb:32:in `each'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/analyzer.rb:32:in `find'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/cli/console.rb:69:in `loop'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/cli/console.rb:27:in `start'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/lib/querly/cli.rb:68:in `console'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/thor-0.20.0/lib/thor/command.rb:27:in `run'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/thor-0.20.0/lib/thor/invocation.rb:126:in `invoke_command'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/thor-0.20.0/lib/thor.rb:387:in `dispatch'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/thor-0.20.0/lib/thor/base.rb:466:in `start'
  /Users/gfx/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/querly-0.11.0/exe/querly:8:in `<top (required)>'
  /Users/gfx/.rbenv/versions/2.5.1/bin/querly:23:in `load'
  /Users/gfx/.rbenv/versions/2.5.1/bin/querly:23:in `<main>'