Consider Updating Code and Documentation for Go 1.18 any -> interface{} Alias

[bflad]

SDK version

v2.10.0

Use-cases

This framework generally requires heavy usage of empty interface types (interface{}, []interface{}, map[string]interface{}) when working with helper/schema.ResourceData. This syntax is a little verbose and is not intuitive for newer provider developers or Gophers coming from projects which typically use concrete types.

When Go 1.18 releases early next year, it will include the equivalent of:

type any = interface{}

It seems like it would be great to update our code and examples to replace interface{} with any.

Proposal

After Go 1.18 is released:

• Update code examples on https://terraform.io/docs/
• Update code examples on https://learn.hashicorp.com
• Update code in https://github.com/hashicorp/terraform-provider-scaffolding
• Create issues on HashiCorp maintained utility providers (as they may , if they are still using this framework

Since this framework must remain compatible with Go 1.17 until Go 1.19 is released later next year due to our compatibility promises, this codebase should not be updated yet.

References

• spec: allow 'any' for 'interface{}' in non-constraint contexts golang/go#33232

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