Created
September 28, 2017 04:30
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Underlying concept of reference semantics in swift
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class Machine { | |
let model: String | |
var make: String | |
init(model: String, make: String) { | |
self.model = model | |
self.make = make | |
} | |
} | |
/// uncomment to check compiler error | |
var m1 = Machine(model: "USS", make: "M1900") | |
//m1.model = "RSS" | |
m1.make = "M2000" | |
// under the hood reference pointer is updated instead of assigning new value back | |
let m2 = Machine(model: "USS", make: "M2100") | |
//m2.model = "RSS" | |
m2.make = "M2300" |
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