Structs

Structs are represented as an ordered list of bytes. They must always be in this same order. This makes it very simple to always interpret the bytes in a struct.

Detailed example:

Consider the following struct:

module 0x42::example {
    struct ExampleStruct {
        number: u8,
        vec: vector<bool>,
        uint16: u16
    }
}

We see here that we have mixed types. These types will always be interpreted in that order, and must be canonical.

Here is an example of the struct:

ExampleStruct {
  number: 255,
  vec: vector[true, false, true],
  uint16: 65535
}

This would be encoded as each of the individual encodings in order.

• 255 = 0xFF
• [true, false, true] = 0x03010001
• 65535 = 0xFFFF

So combined they would be: 0xFF03010001FFFF