Does that mean that we can have an array (of either static or dynamic elements) with fixed size, where this fixed size is 0? (so the typeint256[0], or bool[0], or string[0], or bytes[][][][][0][]?)
I can understand the need for supporting a zero-tuple (it is very common from functional languages), but I do not understand what a fixed-size zero-length array is supposed to be for.
Do they exist, or is this an off-by-one error in the documentation?
If they do exist, are these encoded as 'empty arguments' that do not take up any space in the hexadecimal ABI string?
jamesray1
commented
5 years ago
In the ABI spec section Types, the following statement is written:
In the section Formal specification of encoding, the following statement is written:
Does that mean that we can have an array (of either static or dynamic elements) with fixed size, where this fixed size is
0? (so the typeint256[0], orbool[0], orstring[0], orbytes[][][][][0][]?) I can understand the need for supporting a zero-tuple (it is very common from functional languages), but I do not understand what a fixed-size zero-length array is supposed to be for.Do they exist, or is this an off-by-one error in the documentation? If they do exist, are these encoded as 'empty arguments' that do not take up any space in the hexadecimal ABI string?