Refactor types

[Pcrab]

What does it do?

Add types to Hexo class and extend apis.

Only types are changed except for lib/extend/tag.ts, where I added an intermediate variable. All these changes should have no effect on runtime behavior.

This may help plugin authors who can now add hexo as devdependency and add declare var hexo: import("hexo") to global.d.ts to get better type inference.

Screenshots

After adds

I can get better type inference like this:

which used to be just any type.

Pull request tasks

• Add test cases for the changes.
• Passed the CI test.

[github-actions]

How to test

git clone -b refactor-types https://github.com/Pcrab/hexo.git
cd hexo
npm install
npm test

[coveralls]

Coverage: 98.669% (+0.03%) from 98.635% when pulling 4c99a3d on Pcrab:refactor-types into 46fbdcf on hexojs:v7.0.0.

[SukkaW]

Suggested change

	import Hexo from '../../hexo';
	import type Hexo from '../../hexo';

Use import type for type only imports.

[Pcrab]

Fixed in 3ad806d.

Maybe we should add a rule in .eslintrc.json to enforce this style?

{
  "rules": {
    "@typescript-eslint/consistent-type-imports": "warn",
  }
}

[yoshinorin]

Thank you :)