Switch-When in Native

February 8, 2021 · View on GitHub

Overview

Switch-When is supported only with integer label in native function. The label should be integer but also it can be the expression with the type of integer.

Examples

Example 1. Switch-When in native

Code

var y = 19;
native f(a, x) {
    var b = 0;
    switch (a) {
    when 1:
        b = a;
    when 5:
        b = a;
    else:
        b = 100;
    when 4:
        b = a;
    when 3:
        b = a;
    when 8:
        b = 10;
    when 9:
        b = a;
    when x:
        b = 1000;
    when y:
        b = 10000;
    when y+1:
        b = 100000;
        fallthrough;
    when x+3:
        b += 1000000;
    }
    return b;
}
System.println(f(1, 18));
System.println(f(2, 18));
System.println(f(3, 18));
System.println(f(4, 18));
System.println(f(5, 18));
System.println(f(6, 18));
System.println(f(7, 18));
System.println(f(8, 18));
System.println(f(9, 18));
System.println(f(18, 18));
System.println(f(19, 18));
System.println(f(20, 18));
System.println(f(21, 18));

Result