fix: split validators.ts into multiple files to allow proper tree shaking #519
Description
In validators.ts, line 20-22:
private libPhoneNumber = {
phoneUtil: require("google-libphonenumber").PhoneNumberUtil.getInstance(),
};
When class-validator is bundled with webpack, google-libphonenumber, which represents 71% of the bundle size, is embedded, even if you don't use the phone number validator. See this bundle analysis made with webpack-bundle-analyzer:
Validators should be split into different files, allowing to import only the needed files without extra code and thus enabling proper tree shaking when bundling dependencies with webpack.