formatlist() should be able to take empty list but cant

[gtmtech]

terraform 0.7.5

formatlist(string, list) should be able to take an empty list. The functionality in this case should be obvious, it outputs an empty list.

Instead, it prints this error:

template = "${join(",", formatlist("example%s", list()))}"

* formatlist: no lists in arguments to formatlist in:

${join(",", formatlist("example%s", list()))}

This really shouldn't be an error, there is no reason why it shouldn't be able to cope with this just fine. I've worked up this example for you, but the real usecase is using aws_instance.example.*.private_ip, as the list parameter to a formatlist when the count of the example aws_instance is 0. Terraform should cope with this just fine, and doesnt >.<

[stack72]

Hi @gtmtech

Thanks for the request here - this was added in #9795 which was part of the 0.7.8 release

Thanks

Paul

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