/**
* This method evaluates whether the left operand is equal to the right operand.
*
* @access public
* @static
* @param IHashMap\Type $xs the left operand
* @param Core\Type $ys the right operand
* @return IBool\Type whether the left operand is equal
* to the right operand
*/
public static function eq(IHashMap\Type $xs, Core\Type $ys) : IBool\Type
{
// ==
$type = $xs->__typeOf();
if ($ys !== null && $ys instanceof $type) {
if (IInt32\Module::__eq($xs->size(), $ys->size())) {
return IHashMap\Module::all($xs, function (ITuple\Type $x, IInt32\Type $i) use($ys) {
$key = $x->first();
if ($ys->__hasKey($key)) {
return $ys->item($key)->eq($x->second());
}
return IBool\Type::false();
});
}
}
return IBool\Type::false();
}