Polymorphic Variant Types and Basic Match Statement

Protean-Labs / mesh

The Mesh Engine that implements the Mesh Language, a computational language for web3.

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Polymorphic Variant Types and Basic Match Statement #75

Open ThierryBleau opened 3 years ago

ThierryBleau commented 3 years ago

Syntax candidate

//type user: [ Profile({name: string, age: int}), Anon(int) , Mod];

// visitor: [Profile(_), Anon(_), Mod]
let visitor = Anon(0);

// f: [Profile(_), Anon(_), Mod ] => string
let f = (x) => switch (x) {
  | Profile(_) => "profile"
  | Anon(_) => "anon"
  | Mod => "mod"
}