A Better C (ABC); or what is left in C (language-wise) that Arrow does not yet implement

[mehcode]

Enumerations

enum Color { Red = 1, Blue, Green }

• Explicit discriminator type ? — enum Color: int32 { ... }
• Scope; is Red a name or must it be accessed via Color.Red ?

Switch / Match

From C this is the switch value { ... } statement.

match value {
  case 1 { do_1(); }
  case 2 { do_2(); }
  case 3 {
    do_3();
    do_31();
  }
  otherwise {
    do_else();
  }
}

• How far do we go with case patterns?
• otherwise, case _, _, else, or default for the "else" arm
• General case syntax:
  • case pattern => { ... }
  • case pattern { ... }
  • pattern => { ... }