Generate typescript declaration for XState

[DrSensor]

• [x] ~~assess if serde typescript-definitions crates is suitable~~ the type must be determined before compilation so it can't generate n-number of possible types in a union type ❌
• [x] be06a6d690a71abab2dae107a117f825afaded2c generate Typescript interface and union type for State
• [x] ~~investigate if serde typescript-definitions can generate interface (or atleast plain object type can be treated as interface in XState)~~ it can generate type of plain object ✔️
• [x] try to generate typescript declaration from JSON using json_typegen_shared

json_typegen results

{
  "states": {
    "set": {
      "on": {
        "TOGGLE": "reset",
        "RESET": "reset",
        "OFF": "set"
      }
    },
    "reset": {
      "on": {
        "TOGGLE": "set",
        "SET": "set",
        "DATA": "set"
      }
    }
  }
}

json_typegen above.json -O typescript --name MachineConfig > below.ts

interface MachineConfig {
    states: States;
}
interface States {
    set: Set;
    reset: Reset;
}
interface Set {
    on: On;
}
interface On {
    TOGGLE: string;
    RESET: string;
    OFF: string;
}
interface Reset {
    on: On2;
}
interface On2 {
    TOGGLE: string;
    SET: string;
    DATA: string;
}

Things to keep track

• https://github.com/arabidopsis/typescript-definitions/issues/2
• https://github.com/evestera/json_typegen/issues/10

[DrSensor]

This is just a temporary hack, in the future find a way to use and contribute to swc_ecma_codegen typescript implementation. (hint: fork then include that as a git-submodule)

beware: this might need more RAM since Rust langserver doesn't have a mode to conserve memory. So delay this until I can buy better laptop 😢