False positive no-unreachable catch in generator

[etienne-dldc]

The no-unreachable rule does not understand that yield can throw an error an report an error.

Here is small repro:

/*eslint no-unreachable: "error"*/

function* generator() {
  try {
    yield 1;
    yield 2;
    return 3;
  } catch (err) { // eslint warn about the catch being unreachable
    return err;
  }
}

var gen = generator();
gen.throw(5) // this will run the code in the catch

Online demo

[kaicataldo]

Thanks for reporting this. Agreed that this is a bug. Documentation describing this behavior can be found here.