Structs & Enums

Zyra features robust algebraic data types including struct product types and tagged enum sum types with pattern matching.

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Struct Declarations

Declare custom record types with struct:

struct User {
  id: Int
  name: String
  is_admin: Bool
}

Instantiation & Access

const u = User { id: 101, name: "Alice", is_admin: true }
print("User ID: {u.id}, Name: {u.name}")

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Enum Declarations

Enums represent data variants with optional payloads:

enum Status {
  Active(user: String)
  Pending
  Inactive
}

Pattern Matching (match)

Deconstruct enum variants cleanly using match expressions:

def inspect_status(s: Status): String {
  const result = match (s) {
    Active(user) => "User {user} is online"
    Pending => "Pending verification"
    Inactive => "User is offline"
  }
  return result
}