ABI Support

TEALScript supports every type defined in the ABI

• uintN
• ufixedNxM
• Tuples
• Dynamic Arrays
• Static Arrays
• Boolean

Custom Types

Like typescript, you can define types in your TEALScript file. Currently, custom generics are not supported

Examples

Defining Custom Type

type MyType = StaticArray<uint64, 3>
const a: MyType = [1, 2, 3]

Reference Types

Account, Asset, and Application are all special types that indicate the given value must be added to the foreign reference array. TEALScript will automatically convert Account to Address (which is an alias for byte[32]) and Asset/Application to uint64 where aplpicable. This means if you attempt to return one of these types or store in storage, it will converted automatically by the compiler to it's respective ABI type.

Examples

Returning an Asset

foo(asa: Asset): Asset {
    return asa // returns the uint64 ID of the given asset
}