init(int: Int = 10) {
self.int = int
}
init(int: Int = 10, int2: Int) {
self.int = int
self.int2 = int2
}
init(int: Int = 10, int3: Int) {
self.int = int
self.int3 = int3
}
init(int: Int = 10, int2: Int, int3: Int) {
self.int = int
self.int2 = int2
self.int3 = int3
}
init(int: Int = 10, int4: Int) {
self.int = int
self.int4 = int4
}
init(int: Int = 10, int2: Int, int4: Int) {
self.int = int
self.int2 = int2
self.int4 = int4
}
init(int: Int = 10, int3: Int, int4: Int) {
self.int = int
self.int3 = int3
self.int4 = int4
}
init(int: Int = 10, int2: Int, int3: Int, int4: Int) {
self.int = int
self.int2 = int2
self.int3 = int3
self.int4 = int4
}
init(int: Int = 10, int5: Int) {
self.int = int
self.int5 = int5
}
init(int: Int = 10, int2: Int, int5: Int) {
self.int = int
self.int2 = int2
self.int5 = int5
}
init(int: Int = 10, int3: Int, int5: Int) {
self.int = int
self.int3 = int3
self.int5 = int5
}
init(int: Int = 10, int2: Int, int3: Int, int5: Int) {
self.int = int
self.int2 = int2
self.int3 = int3
self.int5 = int5
}
init(int: Int = 10, int4: Int, int5: Int) {
self.int = int
self.int4 = int4
self.int5 = int5
}
init(int: Int = 10, int2: Int, int4: Int, int5: Int) {
self.int = int
self.int2 = int2
self.int4 = int4
self.int5 = int5
}
init(int: Int = 10, int3: Int, int4: Int, int5: Int) {
self.int = int
self.int3 = int3
self.int4 = int4
self.int5 = int5
}
init(int: Int = 10, int2: Int, int3: Int, int4: Int, int5: Int) {
self.int = int
self.int2 = int2
self.int3 = int3
self.int4 = int4
self.int5 = int5
}
init(int: Int = 10, int6: Int) {
self.int = int
self.int6 = int6
}
init(int: Int = 10, int2: Int, int6: Int) {
self.int = int
self.int2 = int2
self.int6 = int6
}
init(int: Int = 10, int3: Int, int6: Int) {
self.int = int
self.int3 = int3
self.int6 = int6
}
init(int: Int = 10, int2: Int, int3: Int, int6: Int) {
self.int = int
self.int2 = int2
self.int3 = int3
self.int6 = int6
}
init(int: Int = 10, int4: Int, int6: Int) {
self.int = int
self.int4 = int4
self.int6 = int6
}
init(int: Int = 10, int2: Int, int4: Int, int6: Int) {
self.int = int
self.int2 = int2
self.int4 = int4
self.int6 = int6
}
init(int: Int = 10, int3: Int, int4: Int, int6: Int) {
self.int = int
self.int3 = int3
self.int4 = int4
self.int6 = int6
}
init(int: Int = 10, int2: Int, int3: Int, int4: Int, int6: Int) {
self.int = int
self.int2 = int2
self.int3 = int3
self.int4 = int4
self.int6 = int6
}
init(int: Int = 10, int5: Int, int6: Int) {
self.int = int
self.int5 = int5
self.int6 = int6
}
init(int: Int = 10, int2: Int, int5: Int, int6: Int) {
self.int = int
self.int2 = int2
self.int5 = int5
self.int6 = int6
}
init(int: Int = 10, int3: Int, int5: Int, int6: Int) {
self.int = int
self.int3 = int3
self.int5 = int5
self.int6 = int6
}
init(int: Int = 10, int2: Int, int3: Int, int5: Int, int6: Int) {
self.int = int
self.int2 = int2
self.int3 = int3
self.int5 = int5
self.int6 = int6
}
init(int: Int = 10, int4: Int, int5: Int, int6: Int) {
self.int = int
self.int4 = int4
self.int5 = int5
self.int6 = int6
}
init(int: Int = 10, int2: Int, int4: Int, int5: Int, int6: Int) {
self.int = int
self.int2 = int2
self.int4 = int4
self.int5 = int5
self.int6 = int6
}
init(int: Int = 10, int3: Int, int4: Int, int5: Int, int6: Int) {
self.int = int
self.int3 = int3
self.int4 = int4
self.int5 = int5
self.int6 = int6
}
init(int: Int = 10, int2: Int, int3: Int, int4: Int, int5: Int, int6: Int) {
self.int = int
self.int2 = int2
self.int3 = int3
self.int4 = int4
self.int5 = int5
self.int6 = int6
}
extension Example: Decodable {
init(from decoder: any Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
do {
self.int = try container.decodeIfPresent(Int.self, forKey: CodingKeys.int) ?? 10
} catch {
self.int = 10
}
do {
self.int2 = try container.decodeIfPresent(Int.self, forKey: CodingKeys.int2) ?? 10 /// default value is 10
} catch {
self.int2 = 10 /// default value is 10
}
do {
self.int3 = try container.decodeIfPresent(Int.self, forKey: CodingKeys.int3) ?? 10
} catch {
self.int3 = 10
}
do {
self.int4 = try container.decodeIfPresent(Int.self, forKey: CodingKeys.int4) ?? 4
} catch {
self.int4 = 4
}
do {
self.int5 = try container.decodeIfPresent(Int.self, forKey: CodingKeys.int5) ?? 5 /// `int4` default value is 4, `int5` default value is 5
} catch {
self.int5 = 5 /// `int4` default value is 4, `int5` default value is 5
}
do {
self.int6 = try container.decodeIfPresent(Int.self, forKey: CodingKeys.int6) ?? globalVariable
} catch {
self.int6 = globalVariable
}
}
}
extension Example: Encodable {
func encode(to encoder: any Encoder) throws {
var container = encoder.container(keyedBy: CodingKeys.self)
try container.encode(self.int, forKey: CodingKeys.int)
try container.encode(self.int2, forKey: CodingKeys.int2)
try container.encode(self.int3, forKey: CodingKeys.int3)
try container.encode(self.int4, forKey: CodingKeys.int4)
try container.encode(self.int5, forKey: CodingKeys.int5)
try container.encode(self.int6, forKey: CodingKeys.int6)
}
}
extension Example {
enum CodingKeys: String, CodingKey {
case int = "int"
case int2 = "int2"
case int3 = "int3"
case int4 = "int4"
case int5 = "int5"
case int6 = "int6"
}
}
1. Mutable variables can have default values added by adding initialization syntax.
We can get the default value whether it is a surface value or an expression from
binding.initializer?.value. Like this:int1default value is an integer literal.int2default value is a function expression.int3default value is a variable reference.2. Usage:
3. The expanded results are as follows:
As expected except there are too many initialization methods. But the next step can be to just generate an initializing constructor containing all parameters with default values.