moddable-types

[WIP] Moddable definitely typed Ecma TC53

[Coution] I have no plans to maintain this project.
This is temporary project while waiting for the type definition merges that Mr. Chris Midgley and other contributes are currently working on.

Usage

cd $MODDABLE/../
git clone https://github.com/MKGaru/moddable-types.git
cd YOUR_MODDABLE_PROJECT
mcconfig -d -p esp32/nodemcu # <-- your build platform
ln -s $MODDABLE/build/tmp/esp32/nodemcu/debug/YOUR_MODDABLE_PROJECT/modules/tsconfig.json tsconfig.json

Example

io/digital/blink example

cp -r $MODDABLE/examples/io/digital/blink AWESOME_PROJECT
cd AWESOME_PROJECT
mv main.js main.ts

edit manifest.json, add "include"

"$(MODDABLE)/examples/manifest_typings.json",
"$(MODDABLE)/../moddable-types/manifest.json"

mcconfig -d -p esp32/nodemcu # <-- your build platform
ln -s $MODDABLE/build/tmp/esp32/nodemcu/debug/AWESOME_PROJECT/modules/tsconfig.json tsconfig.json
code . # <-- open VisualStudio Code

mcconfig -d -m -p esp32/nodemcu
# or if you use xs-dev
# xs-dev run --device=esp32/nodemcu

[Optional] External modules (like dtex/j5e)

install (see https://dtex.github.io/j5e/tutorial-A-GETSTARTED.html)

pushd $MODDABLE/../
git clone https://github.com/dtex/j5e

# or if you use xs-dev (coming soon?)
# xs-dev get dtex/j5e

cd j5e
export j5e=$PWD
popd

edit manifest.json, add "include"

"$(j5e)/manifest.json"

and generate d.ts

tsc $j5e/lib/**/*.js --declaration --allowJs --emitDeclarationOnly --outDir $j5e/typings

📓 Special notes for the j5e library

Many of the classes in the j5e library are asynchronous constructors, so you need a type definition patch.

cd j5e/../
touch replace.js

edit replace.js

module.exports = {
  files: 'j5e/typings/**/index.d.ts',
  from: /^export default (.+);$/m,
  to: (match, name) => name == 'asyncClass' ? match : `export default asyncClass
interface AsyncClass<T extends { new (...args: any[]): void }> {
new (...args: ConstructorParameters<T>): Promise<InstanceType<T>>
}
declare const asyncClass: AsyncClass<typeof ${name}>
`
}

npx replace-in-file --configFile=replace.js
rm replace.js

and, add "typescript/tsconfig"

"typescript": {
  "tsconfig": {
    "compilerOptions": {
      "paths": {
        "j5e/*": [
          "$(j5e)/typings/*/index"
        ]
      }
    }
  }
}

like this. (complete manifest.json)

{
  "include": [
    "$(MODDABLE)/modules/io/manifest.json",
    "$(MODDABLE)/examples/manifest_typings.json",
    "$(MODDABLE)/../moddable-types/manifest.json",
    "$(j5e)/manifest.json"
  ],
  "modules": {
    "*": "./main"
  },
  "typescript": {
    "tsconfig": {
      "compilerOptions": {
        "paths": {
          "j5e/*": [
            "$(j5e)/typings/*/index"
          ]
        }
      }
    }
  }
}

and execute command for (re)generating tsconfig.json

mcconfig -d -p esp32/nodemcu

example code (for esp32/nodemcu like device)

import LED from 'j5e/led'

export default async function () {
  const led = await new LED(device.pin.led)

  System.setInterval(() => {
    if (led.isOn)
      led.off()
    else
      led.on()
  }, 300);
}