tridiak
(tridiak)
1
Been searching and trying to figure out a comparison problem.
func ==(lhs : ACType, rhs : ACType) -> Bool {
switch (lhs,rhs) {
case (.other, .other):
return true
case (.other, _):
return false
case (_, .other):
return false
default:
return lhs == rhs
}
}
enum ACType {
case noType
case natural
case armour
case shield
case deflection
case dodge
case sacred
case luck
case other(String)
static func Stacks(type : ACType) -> Bool {
return type == ACType.noType || type == ACType.dodge || type == ACType.other
}
}
I get an error concerning ‘type == ACType.other’.
Compiler blab: Binary operator '==' cannot be applied to operands of type 'ACType' and '(String) -> ACType'
How do I fix this? Simply cannot see it.
TIA Mark
Rien
(Rien)
2
The “==“ operation can only compare concrete instances of the enum.
With “type == ACType.other” the right side is not an instance. as the associated value is missing.
Regards,
Rien
Site: http://balancingrock.nl
Blog: http://swiftrien.blogspot.com
Github: Swiftrien (Rien) · GitHub
Project: http://swiftfire.nl
···
On 21 Jan 2017, at 13:56, tridiak via swift-users <swift-users@swift.org> wrote:
Been searching and trying to figure out a comparison problem.
func ==(lhs : ACType, rhs : ACType) -> Bool {
switch (lhs,rhs) {
case (.other, .other):
return true
case (.other, _):
return false
case (_, .other):
return false
default:
return lhs == rhs
}
}
enum ACType {
case noType
case natural
case armour
case shield
case deflection
case dodge
case sacred
case luck
case other(String)
static func Stacks(type : ACType) -> Bool {
return type == ACType.noType || type == ACType.dodge || type == ACType.other
}
}
I get an error concerning ‘type == ACType.other’.
Compiler blab: Binary operator '==' cannot be applied to operands of type 'ACType' and '(String) -> ACType'
How do I fix this? Simply cannot see it.
TIA Mark
_______________________________________________
swift-users mailing list
swift-users@swift.org
https://lists.swift.org/mailman/listinfo/swift-users
Rien
(Rien)
3
Oh, I am not using the correct terminology, sorry. Enum’s don’t have “instances” right?
Anyhow, I guess you get my drift…
Regards,
Rien
Site: http://balancingrock.nl
Blog: http://swiftrien.blogspot.com
Github: Swiftrien (Rien) · GitHub
Project: http://swiftfire.nl
···
On 21 Jan 2017, at 14:23, Rien <Rien@Balancingrock.nl> wrote:
The “==“ operation can only compare concrete instances of the enum.
With “type == ACType.other” the right side is not an instance. as the associated value is missing.
Regards,
Rien
Site: http://balancingrock.nl
Blog: http://swiftrien.blogspot.com
Github: Swiftrien (Rien) · GitHub
Project: http://swiftfire.nl
On 21 Jan 2017, at 13:56, tridiak via swift-users <swift-users@swift.org> wrote:
Been searching and trying to figure out a comparison problem.
func ==(lhs : ACType, rhs : ACType) -> Bool {
switch (lhs,rhs) {
case (.other, .other):
return true
case (.other, _):
return false
case (_, .other):
return false
default:
return lhs == rhs
}
}
enum ACType {
case noType
case natural
case armour
case shield
case deflection
case dodge
case sacred
case luck
case other(String)
static func Stacks(type : ACType) -> Bool {
return type == ACType.noType || type == ACType.dodge || type == ACType.other
}
}
I get an error concerning ‘type == ACType.other’.
Compiler blab: Binary operator '==' cannot be applied to operands of type 'ACType' and '(String) -> ACType'
How do I fix this? Simply cannot see it.
TIA Mark
_______________________________________________
swift-users mailing list
swift-users@swift.org
https://lists.swift.org/mailman/listinfo/swift-users
eskimo
(Quinn “The Eskimo!”)
4
Use a switch statement:
switch type {
case .noType, .dodge, .other: return true
case .natural, .armour, .shield, .deflection, .sacred, .luck: return false
}
Note that I’ve spelt out all the cases so that the compiler warns me if I add or remove a case in the future.
Share and Enjoy
···
On 21 Jan 2017, at 12:56, tridiak via swift-users <swift-users@swift.org> wrote:
How do I fix this? Simply cannot see it.
--
Quinn "The Eskimo!" <http://www.apple.com/developer/>
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
