AbiEncoderV2 encoding Tuple algorithm

Question

Where can I find AbiEncoderV2 encoding Tuple algorithm?

I would like to add Tuples support to a ruby library.

Answer 1

Basically, a tuple is encoded as if all its members were separate parameters, so the following function returns true:

struct Foo {
  uint x;
  uint y;
  uint z;
}

function foo () public pure returns (bool) {
  return keccak256 (abi.encode (1, 2, 3)) ==
         keccak256 (abi.encode (Foo (1,  2, 3)));
}