Documented server plugin example fails with relative path

TypeScript Version: 4.0.3 & 4.1.0-dev.20201003

Search Terms: plugin link path

Code

Writing a Language Service Plugin | Putting it all together
_{https://github.com/microsoft/TypeScript/wiki/Writing-a-Language-Service-Plugin#putting-it-all-together}

Summary:

I have recreated the example plugin found in the documentation at Writing a Language Service Plugin.

The example works when using 'npm link', but not with relative paths.

I referred to the plugin in tsconfig like this:

"plugins": [{
	"name": "../plugin"
}]

I have also tried to refer to ../plugin/index and ../plugin/index.js, but neither of them works.

Expected behavior:

Be able to refer to the plugin with a relative path.

Actual behavior:

Silently fails without the plugin being loaded.

Beginne mit dem verknüpften Beispiel „Writing a Language Service Plugin“ und reproduziere dessen tsconfig-plugin-Konfiguration unter Verwendung des relativen Pfads ../plugin. Verfolge, wie diese Konfiguration das Plugin auflöst, und überprüfe anschließend, dass das dokumentierte Beispiel das Plugin ohne npm link lädt und nicht mehr stillschweigend fehlschlägt.