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Class: TrueClass

Relationships & Source Files
Inherits: Object
Defined in: object.c,
object.c

Overview

The global value true is the only instance of class TrueClass and represents a logically true value in boolean expressions. The class provides operators allowing true to be used in logical expressions.

Instance Method Summary

Instance Method Details

#&(obj) ⇒ Boolean

And—Returns false if obj is nil or false, true otherwise.

[ GitHub ] 

  


# File 'object.c', line 1438



static VALUE
true_and(VALUE obj, VALUE obj2)
{
    return RTEST(obj2)?Qtrue:Qfalse;
}


  








  

    #===  
  

  [ GitHub ]






  

    #^(obj)  ⇒ !obj   



  

    

Exclusive Or—Returns true if obj is nil or false, false otherwise.


  



  [ GitHub ]


  

  


# File 'object.c', line 1476



static VALUE
true_xor(VALUE obj, VALUE obj2)
{
    return RTEST(obj2)?Qfalse:Qtrue;
}


  








  

    

      #to_s  ⇒ "true" 
      #inspect  ⇒ "true" 
    

  



  

    

Alias for #to_s.


  









  

    #to_s  ⇒ "true"     Also known as: #inspect
  



  

    

The string representation of true is “true”.


  



  [ GitHub ]


  

  


# File 'object.c', line 1423



static VALUE
true_to_s(VALUE obj)
{
    return rb_cTrueClass_to_s;
}


  








  

    #|(obj)  ⇒ true   



  

    

Or—Returns true. As obj is an argument to a method call, it is always evaluated; there is no short-circuit evaluation in this case.



true |  puts("or")
true || puts("logical or")



produces:



or


  



  [ GitHub ]


  

  


# File 'object.c', line 1460



static VALUE
true_or(VALUE obj, VALUE obj2)
{
    return Qtrue;
}