Warning : This case is unused

[lublak]

i use hxparse with haxeparser
hxparse throws some warnings out:

hxparse/ParserBuilderImpl.hx:136: lines 136-139 : Warning : This case is unused

Not really important since it will be built anyway.

[danielo515]

Can you give me more details? I'm algo experiencing this, but in my case it seems that, in fact, the cases are not matching.
To give you an example of when this happens to me, it is in code like this:

  public function parseType() {
    return switch stream {
      case [DocType(t), Pipe]:
        final t2 = parseType();
        'Either($t, $t2)';
      case [DocType(t)]:  // IT says this case is unused, same happens if I change the order, whatever i put here becomes unused
        t + "";
    }
  }