A basic switch expression starts with the switch keyword and the switch subject expression, as well as the case expressions between curly braces {}. Case expressions either start with the case keyword and are followed by a pattern expression, or consist of the default keyword. In both cases a colon : and an optional case body expression follows:
switch subject { case pattern1: case-body-expression-1; case pattern2: case-body-expression-2; default: default-expression; }
Case body expressions never "fall through", so the break keyword is not supported in Haxe.
Switch expressions can be used as value; in that case the types of all case body expressions and the default expression must unify.
Each case (including the default one) is also a variable scope, which affects variable shadowing.
switch (0) { case 0: var a = "foo"; case _: // This would cause a compilation error, since `a` from the previous // case is not accessible in this case: // trace(a); }