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Class: RuboCop::Cop::VariableForce::Branch::Base Private

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Subclasses:
And, Case, CaseMatch, Ensure, For, If, Or, Rescue, Until, UntilPost, While, WhilePost
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Struct
Instance Chain:
self, Struct
Inherits: Struct
  • Object
Defined in: lib/rubocop/cop/variable_force/branch.rb

Overview

Abstract base class for branch classes. A branch represents a conditional branch in a scope.

Examples:

def some_scope
  do_something     # no branch

  if foo
    do_something   # branch A
    do_something   # branch A
  else
    do_something   # branch B
    if bar
      do_something # branch C (whose parent is branch B)
    end
  end

  do_something     # no branch
end

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Class Method Details

.classes

[ GitHub ] 

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 43



def self.classes
  @classes ||= []
end


  








  

    .define_predicate(name, child_index: nil)  
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 56



def self.define_predicate(name, child_index: nil)
  define_method(name) do
    target_node = control_node.children[child_index]

    # We don't use Kernel#Array here
    # because it invokes Node#to_a rather than wrapping with an array.
    if target_node.is_a?(Array)
      target_node.any? { |node| node.equal?(child_node) }
    else
      target_node.equal?(child_node)
    end
  end
end


  








  

    .inherited(subclass)  
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 47



def self.inherited(subclass)
  super
  classes << subclass
end


  








  

    .type  
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 52



def self.type
  name.split('::').last.gsub(/(.)([A-Z])/, '\1_\2').downcase.to_sym
end


  







Instance Attribute Details



  

    #always_run?  ⇒ Boolean  (readonly)
  



  

    
  





  
Raises:


    
  
  • 
    (NotImplementedError)
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 92



def always_run?
  raise NotImplementedError
end


  








  

    #branched?  ⇒ Boolean  (readonly)
  



  

    
  





  


  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 88



def branched?
  !always_run?
end


  








  

    #child_node   (rw)
  



  

    


Abstract base class for branch classes.
A branch represents a conditional branch in a scope.



  





    

    
Examples:

      
def some_scope
  do_something     # no branch

  if foo
    do_something   # branch A
    do_something   # branch A
  else
    do_something   # branch B
    if bar
      do_something # branch C (whose parent is branch B)
    end
  end

  do_something     # no branch
end

  




  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 42



Base = Struct.new(:child_node, :scope)


  








  

    #may_jump_to_other_branch?  ⇒ Boolean  (readonly)
  



  

    
  





  


  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 96



def may_jump_to_other_branch?
  false
end


  








  

    #may_run_incompletely?  ⇒ Boolean  (readonly)
  



  

    
  





  


  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 100



def may_run_incompletely?
  false
end


  








  

    #scope   (rw)
  



  

    


Abstract base class for branch classes.
A branch represents a conditional branch in a scope.



  





    

    
Examples:

      
def some_scope
  do_something     # no branch

  if foo
    do_something   # branch A
    do_something   # branch A
  else
    do_something   # branch B
    if bar
      do_something # branch C (whose parent is branch B)
    end
  end

  do_something     # no branch
end

  




  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 42



Base = Struct.new(:child_node, :scope)


  







Instance Method Details



  

    #==(other)  
    Also known as: #eql?
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 121



def ==(other)
  return false unless other

  control_node.equal?(other.control_node) && child_node.equal?(other.child_node)
end


  








  

    #control_node  
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 70



def control_node
  child_node.parent
end


  








  

    #each_ancestor(include_self: false) {|_self| ... } 
  



  

    
  





  
Yields:


    
  
  • 
    (_self)
  
    • 



Yield Parameters:


    
  
  • 
    _self
    (Base)
—    
    

    the object that the method was called on
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 80



def each_ancestor(include_self: false, &block)
  return to_enum(__method__, include_self: include_self) unless block

  yield self if include_self
  scan_ancestors(&block)
  self
end


  








  

    #eql?(other)  
  



  

    


Alias for #==.



  



  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 127



alias_method :eql?, :==


  








  

    #exclusive_with?(other)  ⇒ Boolean 
  



  

    
  





  


  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 104



def exclusive_with?(other)
  return false unless other
  return false if may_jump_to_other_branch?

  other.each_ancestor(include_self: true) do |other_ancestor|
    if control_node.equal?(other_ancestor.control_node)
      return !child_node.equal?(other_ancestor.child_node)
    end
  end

  if parent
    parent.exclusive_with?(other)
  else
    false
  end
end


  








  

    #hash  
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 129



def hash
  [control_node.object_id, control_node.object_id].hash
end


  








  

    #parent  
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 74



def parent
  return @parent if instance_variable_defined?(:@parent)

  @branch = Branch.of(control_node, scope: scope)
end


  








  

    #scan_ancestors   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/variable_force/branch.rb', line 135



def scan_ancestors
  branch = self

  while (branch = branch.parent)
    yield branch
  end
end