Struct

Struct(structure) are another user-defined data type available in WhirlScript, allowing you to store different types of data items.

Data members in a struct can be basic data types (boolean, int, and string), or other struct types.

Declaration

Struct are declared using the struct keyword:

struct MyStruct {
    number: int,
    used: boolean
}

Struct do not allow self-nesting, including direct and indirect nesting. For example, the following definitions are incorrect.

Direct nesting

struct MyStruct {
    id: int,
    next: MyStruct
}

Indirect nesting

struct MyStruct1 {
    id: int,
    next: MyStruct2
}

struct MyStruct2 {
    id: int,
    next: MyStruct1
}

Assignment

Use braces to represent a structure:

var v = {
     id: 2,
     used: false
};

transfer

Use . to call the quantity in the structure:

println(v.id); // 2