New Issue: Should the Chapel compiler support an option like -Wunused?

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20172, "benharsh", "Should the Chapel compiler support an option like -Wunused?", "2022-07-07T20:35:07Z"

I was recently caught off guard by an unused boolean result indicating an EOF error, a result that I did not check.

proc R.readThis(r : channel) {
  r.read(someField); // ignores returned boolean
}

Should the Chapel compiler support a general option like "-Wunused" that warns for unused results?

Could this functionality be enabled or disabled on a per-module or per-function basis with some kind of pragma/attribute? It would be nice to check what results, if any, we are not using in our internal/standard modules.