class FalseClass
The global value false is the only instance of class
FalseClass and represents a logically false value in boolean
expressions. The class provides operators allowing false to
participate correctly in logical expressions.
Public Instance Methods
false & obj → false
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nil & obj → false
And—Returns false. obj is always evaluated as it is
the argument to a method call—there is no short-circuit evaluation in this
case.
static VALUE
false_and(VALUE obj, VALUE obj2)
{
return Qfalse;
}
obj === other → true or false
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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;
}
false ^ obj → true or false
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nil ^ obj → true or false
Exclusive Or—If obj is nil or false,
returns false; otherwise, returns true.
static VALUE
false_xor(VALUE obj, VALUE obj2)
{
return RTEST(obj2)?Qtrue:Qfalse;
}
to_s → "false"
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The string representation of false is “false”.
static VALUE
false_to_s(VALUE obj)
{
return rb_usascii_str_new2("false");
}
Also aliased as: inspect
false | obj → true or false
click to toggle source
nil | obj → true or false
Or—Returns false if obj is nil or
false; true otherwise.
static VALUE
false_or(VALUE obj, VALUE obj2)
{
return RTEST(obj2)?Qtrue:Qfalse;
}