Introducing Swift Power Assert

[kishikawakatsumi]

Thank you. I am a little worried that if the Compile Time Assertion feature will be officially accepted, it will take precedence over the Compile Time Assertion feature than macro?
Or if Compile Time Assertion is accepted, it will use a different syntax?

Compile-time assertions

Consider the following code: struct Matrix { let rows : Int let cols : Int var data : [Double] static func *(lhs: Matrix, rhs: Matrix) -> Matrix { assert(lhs.rows == rhs.cols) //allocate result, call dgemm, return result } } In general, it is impossible to throw this assertion at compile time. Scenarios with these are the reason why there is some discussion about dependent types so that you can declare a Matrix<4,2> or something (which unfortunately would make t…