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Top-Level Statements

Pebble allows certain declarations at the file scope (outside of a contract).
These help define reusable data structures or bring in external functionality.

Import Statements​

Experimental

At present, the feature is incomplete and should be considered experimental.

Pebble includes an import mechanism, but its syntax and semantics are still evolving.

It is expected to allow:

  • Reusing code across .pebble files

  • Bringing in common utility structs or functions

Struct Declaration​

struct is used to define user-defined types (similar to TypeScript interfaces or Rust structs).
Structs are first-class citizens in Pebble, and can be passed around, stored in datums, and destructured.

Syntax​

struct StructName {
    field1: Type1,
    field2: Type2,
    ...
}

Example​

struct Order {
    ownerPaymentCreds: Credential,
    policy: bytes,
    tokenName: bytes,
    minReceiveAmount: int
}

You can use destructuring when working with struct values:

const { ownerPaymentCreds, minReceiveAmount } as Order = myDatum;