Issue #14889 has been updated by ioquatix (Samuel Williams).


If this is by design, please feel free to close, but as it stands there is no way to check if optional argument evaluation occurred or not. For code coverage, this is a limitation.

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Bug #14889: TracePoint for :line never seems to trigger on argument list. Maybe by design?
https://bugs.ruby-lang.org/issues/14889#change-72749

* Author: ioquatix (Samuel Williams)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
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I have the following code.

```
  30  1|		def print_summary(
  31  0|			output = $stdout
  32   |		)
```

In the margin is the line number followed by the number of hits according to `:line` trace point.

I feel like line 31 should also trigger a line trace point. It's an argument, but it must be executed.

Maybe a different trace point? `:argument`?



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