Class: ErrorToCommunicate::Heuristic::LoadError

Inherits:
ErrorToCommunicate::Heuristic show all
Defined in:
lib/error_to_communicate/heuristic/load_error.rb

Instance Attribute Summary

Attributes inherited from ErrorToCommunicate::Heuristic

#einfo, #project

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ErrorToCommunicate::Heuristic

#backtrace, #classname, #explanation, #initialize, #message, #semantic_backtrace, #semantic_explanation, #semantic_summary

Constructor Details

This class inherits a constructor from ErrorToCommunicate::Heuristic

Class Method Details

.for?(einfo) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/error_to_communicate/heuristic/load_error.rb', line 8

def self.for?(einfo)
  einfo.classname == 'LoadError' &&
    einfo.message.include?(' -- ')
end

Instance Method Details

#first_line_within_lib ⇒ Object 



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# File 'lib/error_to_communicate/heuristic/load_error.rb', line 45

def first_line_within_lib
  @first_line_within_lib ||= relevant_backtrace.find { |loc| loc.path.to_s.start_with? project.root }
end

#first_nongem_line ⇒ Object 



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# File 'lib/error_to_communicate/heuristic/load_error.rb', line 41

def first_nongem_line
  relevant_backtrace.first
end

#path ⇒ Object 



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# File 'lib/error_to_communicate/heuristic/load_error.rb', line 13

def path
  @path ||= Pathname.new message.split(' -- ', 2).last
end

#relevant_locations ⇒ Object 



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# File 'lib/error_to_communicate/heuristic/load_error.rb', line 37

def relevant_locations
  @relevant_locations ||= [first_nongem_line, first_line_within_lib].compact.uniq
end

#semantic_info ⇒ Object 



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# File 'lib/error_to_communicate/heuristic/load_error.rb', line 17

def semantic_info
  heuristic = if relevant_locations.any?
    relevant_locations.map { |location|
      [:code, {
        location:  location,
        highlight: location.label,
        context:   -5..5,
        message:   "Couldn't find #{path.to_s.inspect}",
        emphasis:  :code,
      }]
    }
  else
    # The newline here implies the semantic analysis needs to get better,
    # it only does this b/c it should be a block-element, but isn't being sectioned like that, correctly
    [:context, "Couldn\'t find anything interesting ¯\\_(ツ)_/¯\n"]
  end

  [:heuristic, heuristic]
end