Empty destroy fails on conditional modules #31838
Description
Terraform Version
Terraform v1.3.0
on darwin_amd64
+ provider registry.terraform.io/hashicorp/null v3.1.1Terraform Configuration Files
main.tf:
locals {
enable = true
value = local.enable ? module.example[0].thing : null
}
module "example" {
count = local.enable ? 1 : 0
source = "./example"
}The contents of .example/main.tf:
resource "null_resource" "thing" {
}
output "thing" {
value = null_resource.thing
}
Debug Output
https://gist.github.com/jta/4b9bd020354d470c6d1f006b7baf7341
Expected Behavior
Destroying where there is no state should be a no-op.
Actual Behavior
Terraform can apply and destroy the provided config correctly. However, issuing a destroy when the state is empty triggers an error:
Error: Invalid index
on main.tf line 3, in locals:
3: value = local.enable ? module.example[0].thing : null
├────────────────
│ module.example is empty tuple
The given key does not identify an element in this collection value: the collection has no elements.
Steps to Reproduce
terraform initterraform destroy
Additional Context
This is a regression introduced by v1.3.0.
References
No response