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TsRebornz/Keypath_subscript.swift

Last active December 3, 2022 19:16
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Keypath_subscript.swift
let matrixFirstCellValue = \Matrix[0,0]
struct Matrix {
var data: [[Int]]
subscript(row: Int, column: Int) -> Int? {
return data[column][row]
}
}
let matrixFirstCellValue = \Matrix[0,0]
let matrix = Matrix(data: [[1,2,3], [4,5,6], [7,8,9]])
let matrixElem = matrix[keyPath: matrixFirstCellValue] // -> 1
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