Class: Yadriggy::Super

Inherits:
ASTnode show all
Defined in:
lib/yadriggy/ast.rb,
lib/yadriggy/ast_value.rb

Overview

Reserved word ‘super`. `super` is a reserved word but no position (line numbre) is associated with it. Hence Super is not a subclass of Reserved.

Instance Attribute Summary

Attributes inherited from ASTnode

#parent, #usertype

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ASTnode

#add_child, #add_children, #const_value, #const_value_in_class, #get_context_class, #get_receiver_object, #is_proc?, #pretty_print, #root, #source_location, #source_location_string, #value_in_class

Constructor Details

#initialize(sexp) ⇒ Super 



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# File 'lib/yadriggy/ast.rb', line 237

def initialize(sexp) end

Class Method Details

.tag ⇒ Object 



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# File 'lib/yadriggy/ast.rb', line 235

def self.tag() :zsuper end

Instance Method Details

#accept(evaluator) ⇒ void

This method returns an undefined value.

A method for Visitor pattern.



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# File 'lib/yadriggy/ast.rb', line 242

def accept(evaluator)
  evaluator.super_method(self)
end

#invoked_method ⇒ Object

Gets the super method (Method or UnboundMethod object) or nil. If this AST node is not a part of method body, Undef is returned.



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# File 'lib/yadriggy/ast_value.rb', line 253

def invoked_method()
  mthd = root.context
  if mthd.is_a?(Method) || mthd.is_a?(UnboundMethod)
    mthd.super_method
  else
    Undef
  end
end

#value ⇒ Object

Gets an ASTree object representing the method body invoked by this call to super. Undef may be returned if the method is not found.



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# File 'lib/yadriggy/ast_value.rb', line 240

def value()
  mth = invoked_method
  if mth == Undef
    Undef
  else
    root.reify(mth) || Undef
  end
end