Class: ErrorToCommunicate::Heuristic::WrongNumberOfArguments

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

Instance Attribute Summary collapse

Attributes inherited from ErrorToCommunicate::Heuristic

#einfo, #project

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ErrorToCommunicate::Heuristic

#backtrace, #classname, #message, #semantic_backtrace, #semantic_summary

Constructor Details

#initialize ⇒ WrongNumberOfArguments

Returns a new instance of WrongNumberOfArguments.



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

def initialize(*)
  super
  self.num_received, self.num_expected = self.class.extract_from(message)
  self.explanation = 'Wrong number of arguments'
end

Instance Attribute Details

#explanation ⇒ Object

Returns the value of attribute explanation.



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# File 'lib/error_to_communicate/heuristic/wrong_number_of_arguments.rb', line 11

def explanation
  @explanation
end

#num_expected ⇒ Object

Returns the value of attribute num_expected.



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# File 'lib/error_to_communicate/heuristic/wrong_number_of_arguments.rb', line 11

def num_expected
  @num_expected
end

#num_received ⇒ Object

Returns the value of attribute num_received.



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# File 'lib/error_to_communicate/heuristic/wrong_number_of_arguments.rb', line 11

def num_received
  @num_received
end

Class Method Details

.for?(einfo) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/error_to_communicate/heuristic/wrong_number_of_arguments.rb', line 7

def self.for?(einfo)
  extract_from einfo.message
end

Instance Method Details

#semantic_explanation ⇒ Object 



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# File 'lib/error_to_communicate/heuristic/wrong_number_of_arguments.rb', line 19

def semantic_explanation
  [ :message,
    [ [:explanation, explanation],
      [:context, ' (given '],
      [:details, num_received],
      [:context, ', expected '],
      [:details, num_expected],
      [:context, ')'],
    ]
  ]
end

#semantic_info ⇒ Object 



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# File 'lib/error_to_communicate/heuristic/wrong_number_of_arguments.rb', line 31

def semantic_info
  if backtrace.length == 0
    [:context, "Couldn\'t find anything interesting ¯\\_(ツ)_/¯\n"]
  elsif backtrace.length == 1
    [:heuristic, [:code, {
      location:  backtrace[0],
      highlight: backtrace[0].label,
      context:   (-5..5),
      emphasis:  :code,
    }]]
  else
    [:heuristic, [
      [:code, {
        location:  backtrace[0],
        highlight: backtrace[0].label,
        context:   0..5,
        message:   "EXPECTED #{num_expected}",
        emphasis:  :code,
      }],

      [:code, {
        location:  backtrace[1],
        highlight: backtrace[0].label,
        context:   -5..5,
        message:   "SENT #{num_received}",
        emphasis:  :code,
      }],
    ]]
  end
end