Adds allow_unset field for variables #3273
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Signed-off-by: Aminu Oluwaseun Joshua <seun.aminujoshua@gmail.com>
lann requested changes Sep 16, 2025
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We don't have a way to represent "default unset" in spin:variables/get. I think currently it would just return error.undefined which can't be distinguished from mistyping the name.
As-is I think this change isn't worth it when the alternative of default = "" will probably handle the vast majority of cases where this would be useful. If we really want to do this I think spin:variables should be revised to explicitly represent this case through e.g. a new error variant.
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Aims to resolve #3053
Offers an option for variables unset