Function New

common/orderedmap/orderedmap.go:54–78

New creates a new OrderedMap. options can either be one or several InitOption[K, V], or a single integer, which is then interpreted as a capacity hint, à la make(map[K]V, capacity).

(options ...any)

// options can either be one or several InitOption[K, V], or a single integer,
// which is then interpreted as a capacity hint, à la make(map[K]V, capacity).
func New[K comparable, V any](options ...any) *OrderedMap[K, V] { //nolint:varnamelen
	orderedMap := &OrderedMap[K, V]{}

	var config initConfig[K, V]
	for _, untypedOption := range options {
		switch option := untypedOption.(type) {
		case int:
			if len(options) != 1 {
				invalidOption()
			}
			config.capacity = option

		case InitOption[K, V]:
			option(&config)

		default:
			invalidOption()
		}
	}

	orderedMap.initialize(config.capacity)
	orderedMap.AddPairs(config.initialData...)

	return orderedMap
}

const invalidOptionMessage = `when using orderedmap.New[K,V]() with options, either provide one or several InitOption[K, V]; or a single integer which is then interpreted as a capacity hint, à la make(map[K]V, capacity).` //nolint:lll