Helios language/ Methods/

Automatic methods

The following (associated) methods and operators are automatically defined on all user and builtin types (except function types).

==, !=

The equality and inequality operators are automatically defined on every type (except function types).

copy

Instantiates a copy of the underlying value, with some of the fields changed.

This method has the same number of arguments as the number of fields in the user-defined struct or enum-variant. Each argument of copy has the same name as the corresponding field and is optional (see named arguments).

struct Pair {
    first:  Int
    second: Int
}

...

pair = Pair{1, 2};

pair.copy(second: 3) // == Pair{1, 3}

from_data

from_data is an associated function that is automatically defined on every user-type, and thus from_data is a reserved name that can't be used for other methods.

from_data converts a typeless Data into something typed.

MyType::from_data(data: Data) -> MyType

serialize

The serialize method is automatically defined on every user-type, and thus serialize is a reserved name that can't be used for other methods.

serialize serializes the underlying data using cbor encoding.

my_instance.serialize() -> ByteArray

Note: when debugging you can inspect the output of print(my_data.serialize().show()) using this cbor tool.