Support resource-scope locals

[schollii]

Terraform Version

1.3 beta1

Use Cases

Especially when using a map or list of resources, it can be useful to create an expression based on the each object. If this expression is used in more than one place, there can be a significant amount of duplication of code, OR you have to define a local write a local.

Attempted Solutions

variable "map" {
  type = map(number)
}

locals {
  ABC = { for k, v in var.map: k => something(v) }
}

resource aws_something "something" {
  for_each = var.map
  attribute = expression(local.ABC[each.value])
}

Proposal

variable "map" {
  type = map(number)
}

resource aws_something "something" {
  for_each = var.map
  self_locals {
     ABC = something(each.value)
  }
  attribute = expression(self_local.ABC)
}

References

No response

[crw]

Thanks for the feature request!