Actor type doesn't have prepareData, prepareBaseData, prepareDerivedData, etc...

[William Gooch]

Foundry VTT Version

v9

Description

In trying to make a system using this library, when trying to extend the Actor class I can't override the prepareData method (et al) because they don't exist on the base Actor class.

Importantly, this does not occur on the Item class, a similar example to the below with an Item subclass compiles just fine.

Reproduction Steps

Create a new project with this tsconfig.json:

{
  "compilerOptions": {
    "module": "commonjs",
    "moduleResolution": "node",
    "target": "ES2018",
    "lib": ["DOM", "ES6", "ES2017", "ES2018"],
    "types": ["@league-of-foundry-developers/foundry-vtt-types", "node"],
    "allowUmdGlobalAccess": true,
    "skipLibCheck": true
  },
  "files": ["test.ts"]
}

Then add to a file test.ts:

class TestActor extends Actor {
  override prepareData() {
    super.prepareData();
  }
}

Expected Behavior

Should compile with no issues.

Additional Context

Error given is:

test.ts:2:12 - error TS4113: This member cannot have an 'override' modifier because it is not declared in the base class 'Actor'.

2   override prepareData() {
             ~~~~~~~~~~~

test.ts:3:11 - error TS2339: Property 'prepareData' does not exist on type 'Actor'.

3     super.prepareData();
            ~~~~~~~~~~~

[Kai Moschcau]

Hi, please have a look at the Usage section of the README. The types need at least strictNullChecks, ideally strict set to true in your tsconfig to work properly.