class TrueClass
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.
Public Instance Methods
true & obj → true or false
click to toggle source
And—Returns false if obj is nil or
false, true otherwise.
static VALUE
true_and(VALUE obj, VALUE obj2)
{
return RTEST(obj2)?Qtrue:Qfalse;
}
obj === other → true or false
click to toggle source
Case Equality – For class Object, effectively the
same as calling #==, but typically overridden by descendants
to provide meaningful semantics in case statements.
VALUE
rb_equal(VALUE obj1, VALUE obj2)
{
VALUE result;
if (obj1 == obj2) return Qtrue;
result = rb_equal_opt(obj1, obj2);
if (result == Qundef) {
result = rb_funcall(obj1, id_eq, 1, obj2);
}
if (RTEST(result)) return Qtrue;
return Qfalse;
}
true ^ obj → !obj
click to toggle source
Exclusive Or—Returns true if obj is nil
or false, false otherwise.
static VALUE
true_xor(VALUE obj, VALUE obj2)
{
return RTEST(obj2)?Qfalse:Qtrue;
}
to_s → "true"
click to toggle source
The string representation of true is “true”.
static VALUE
true_to_s(VALUE obj)
{
return rb_usascii_str_new2("true");
}
Also aliased as: inspect
true | obj → true
click to toggle source
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
static VALUE
true_or(VALUE obj, VALUE obj2)
{
return Qtrue;
}