codegen AssertionError: ts type for sol type undefined for defaultOperators not found (ERC777)

[zramsay]

similar to #301 (and same 'solution', to use mode: storage)

config:

# Contracts to watch (required).
contracts:
    # Contract name.
  - name: ERC777
    # Contract file path or an url.
    path: ../../openzeppelin-contracts/contracts/token/ERC777/ERC777.sol
    # Contract kind
    kind: ERC777

# Output folder path (logs output using `stdout` if not provided).
outputFolder: ../test-erc777-watcher

# Code generation mode [eth_call | storage | all | none] (default: none).
mode: all

# Kind of watcher [lazy | active] (default: active).
kind: active

# Watcher server port (default: 3008).
host: 0.0.0.0
port: 3009

# Flatten the input contract file(s) [true | false] (default: true).
flatten: true

error:

# yarn codegen --config-file config777.yaml 
yarn run v1.22.19
$ ts-node src/generate-code.ts --config-file config777.yaml
AssertionError [ERR_ASSERTION]: ts type for sol type undefined for defaultOperators not found
    at Schema.addQuery (/root/watcher-ts/packages/codegen/src/schema.ts:40:11)
    at Visitor.functionDefinitionVisitor (/root/watcher-ts/packages/codegen/src/visitor.ts:70:20)
    at visit (/root/watcher-ts/node_modules/@solidity-parser/parser/src/parser.ts:118:25)
    at /root/watcher-ts/node_modules/@solidity-parser/parser/src/parser.ts:109:29
    at Array.forEach (<anonymous>)
    at visit (/root/watcher-ts/node_modules/@solidity-parser/parser/src/parser.ts:109:10)
    at visit (/root/watcher-ts/node_modules/@solidity-parser/parser/src/parser.ts:126:7)
    at /root/watcher-ts/node_modules/@solidity-parser/parser/src/parser.ts:109:29
    at Array.forEach (<anonymous>)
    at visit (/root/watcher-ts/node_modules/@solidity-parser/parser/src/parser.ts:109:10) {
  generatedMessage: false,
  code: 'ERR_ASSERTION',
  actual: undefined,
  expected: true,
  operator: '=='
}

as with #301, mode: eth_call does not work but mode: storage does

[nikugogoi]

The error is for parsing defaultOperators method in ERC777 contract.
It is returning an array type which is not handled in codegen yet.

[zramsay]

tracked as a task in #39