typeArguments = null resulting in type Option<Vec>

[segfault-magnet]

Related Component

compiler

Problem

When I compile a sway project, the resulting ABI is missing the typeArguments for the configurables arg of the function seen in the snippet below:

    pub type ContractConfigurables = Vec<(u64, Vec<u8>)>;
    #[storage(read, write)]
    fn register_contract(
        child_contract: ContractId,
        configurables: Option<ContractConfigurables>,
    ) -> Result<BytecodeRoot, str> {

The resulting ABI:

   {
      "inputs": [
        {
          "name": "child_contract",
          "type": 10,
          "typeArguments": null
        },
        {
          "name": "configurables",
          "type": 4,
          "typeArguments": [
            {
              "name": "",
              "type": 13,
              "typeArguments": null
            }
          ]
        }
      ],
      "name": "register_contract",

type 4 is an Option, type 13 is a Vec. The Vec has no generic arguments causing issues later on in the SDK when trying to generate bindings.

Steps

1. clone https://github.com/segfault-magnet/src12_repro
2. build with forc 0.61.2
3. inspect json ABI for the issue mentioned

Possible Solution(s)

No response

Notes

No response

Installed components

❯ fuelup show
Default host: x86_64-unknown-linux-gnu
fuelup home: /home/segfault_magnet/.fuelup

Installed toolchains
--------------------
latest-x86_64-unknown-linux-gnu
custom (default)
nightly-2024-05-27-x86_64-unknown-linux-gnu
nightly-2024-07-09-x86_64-unknown-linux-gnu

active toolchain
----------------
custom (default)
  forc : 0.61.2
    - forc-client
      - forc-deploy : 0.61.2
      - forc-run : 0.61.2
    - forc-crypto : 0.61.2
    - forc-debug : 0.61.2
    - forc-doc : 0.61.2
    - forc-fmt : 0.61.2
    - forc-lsp : 0.61.2
    - forc-tx : 0.61.2
    - forc-wallet : not found
  fuel-core : 0.31.0
  fuel-core-keygen : 0.31.0

fuels versions
--------------
forc : 0.64.0