Class: TrueClass

Inherits:

Object

• Object
• TrueClass

Defined in:

object.c,
object.c

Overview

*********************************************************************

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

Instance Method Summary

• #&(obj) ⇒ Boolean

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

• #^(obj) ⇒ Object

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

• #to_s ⇒ Object (also: #inspect)

  The string representation of true is “true”.

• #|(obj) ⇒ true

  Or—Returns true.

Instance Method Details

#&(obj) ⇒ Boolean

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

Returns:

• (Boolean)

# File 'object.c', line 1236

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

#^(obj) ⇒ Object

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

# File 'object.c', line 1274

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

#to_s ⇒ Object Also known as: inspect

The string representation of true is “true”.

# File 'object.c', line 1221

static VALUE
true_to_s(VALUE obj)
{
    return rb_usascii_str_new2("true");
}

#|(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

Returns:

• (true)

# File 'object.c', line 1258

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