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wingyplus/AbstractA.swift

Created January 29, 2017 05:17
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AbstractA.swift
protocol A {
func doSomething() -> String
}
// AbstractA
extension A {
func doSomething() -> String {
return "Hello from AbstractA"
}
}
class B : A {
}
let b = B()
print(b.doSomething())
@olarn
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olarn commented Jan 29, 2017

protocol A {
func value: String { get }
func letSubClassImplement()
func doSomething() -> String
}

// AbstractA
extension A {
func doSomething() -> String {
return "Hello from AbstractA"
}
}

class B : A {
func value: String {
get {
return "some value"
}
}
func letSubClassImplement() {
// sub class implementation
}
}

let b = B()
print(b.doSomething())

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