Period
struct Period
extension Period : CustomStringConvertible, Equatable, Hashable
A type representing a period of time where the place is operating for a Place
.
Contains an open Event
and an optional close Event
. The close event will be nil if the
period is open 24hrs.
-
The open event of this period.
Each
Period
is guaranteed to have an open event. If the period is representing open 24hrs, it will only have the open Event with time as “0000”.Declaration
Swift
let open: Event
-
The close event of this period. Can be nil if period is open 24hrs.
Declaration
Swift
let close: Event?
-
Returns a Boolean value indicating whether two values are equal.
Equality is the inverse of inequality. For any values
a
andb
,a == b
implies thata != b
isfalse
.Declaration
Swift
static func == (lhs: Period, rhs: Period) -> Bool
Parameters
lhs
A value to compare.
rhs
Another value to compare.
-
A textual representation of this instance.
Calling this property directly is discouraged. Instead, convert an instance of any type to a string by using the
String(describing:)
initializer. This initializer works with any type, and uses the customdescription
property for types that conform toCustomStringConvertible
:struct Point: CustomStringConvertible { let x: Int, y: Int var description: String { return "(\(x), \(y))" } } let p = Point(x: 21, y: 30) let s = String(describing: p) print(s) // Prints "(21, 30)"
The conversion of
p
to a string in the assignment tos
uses thePoint
type’sdescription
property.Declaration
Swift
var description: String { get }
-
Hashes the essential components of this value by feeding them into the given hasher.
Implement this method to conform to the
Hashable
protocol. The components used for hashing must be the same as the components compared in your type’s==
operator implementation. Callhasher.combine(_:)
with each of these components.Important
In your implementation of
hash(into:)
, don’t callfinalize()
on thehasher
instance provided, or replace it with a different instance. Doing so may become a compile-time error in the future.Declaration
Swift
func hash(into hasher: inout Hasher)
-
Returns a Boolean value indicating whether two values are not equal.
Inequality is the inverse of equality. For any values
a
andb
,a != b
implies thata == b
isfalse
.This is the default implementation of the not-equal-to operator (
!=
) for any type that conforms toEquatable
.Declaration
Swift
static func != (lhs: Self, rhs: Self) -> Bool
Parameters
lhs
A value to compare.
rhs
Another value to compare.