terraform plan -generate-config-out fails for map nested objects with keys with spaces

[henryrecker-pingidentity]

Terraform Version

Terraform v1.9.5
on darwin_amd64

Terraform Configuration Files

provider "example" {
}

import {
  to = example_example.myExample
  id = "str"
}

Debug Output

https://gist.github.com/henryrecker-pingidentity/ae09eb59b71a2d0c02526018760dd254

Expected Behavior

HCL should be generated with the expected values

Actual Behavior

Error, no HCL is generated:

Planning failed. Terraform encountered an error while generating this plan.

╷
│ Error: Missing key/value separator
│
│   on generated_resources.tf line 2:
│   (source code not available)
│
│ Expected an equals sign ("=") to mark the beginning of the attribute value. If you intended to given an
│ attribute name containing periods or spaces, write the name in quotes to create a string literal.
╵

Steps to Reproduce

terraform plan -generate-config-out=generated_resources.tf with a provider schema that has a MapNestedAttribute with a key that includes spaces.

A simple provider that reproduces this issue can be found here: https://github.com/henryrecker-pingidentity/terraform-provider-example/tree/GenerateConfigBug

Relevant provider code, note the "Use Case" name with the space.

func (r *exampleResource) Schema(ctx context.Context, req resource.SchemaRequest, resp *resource.SchemaResponse) {
	resp.Schema = schema.Schema{
		Description: "Example resource.",
		Attributes: map[string]schema.Attribute{
			"string_val": schema.StringAttribute{
				Description: "Optional string attribute",
				Optional:    true,
			},
			"map_val": schema.MapNestedAttribute{
				NestedObject: schema.NestedAttributeObject{
					Attributes: map[string]schema.Attribute{
						"values": schema.SetAttribute{
							ElementType: types.StringType,
							Optional:    true,
							Description: "A Set of values",
						},
					},
				},
				Optional:    true,
				Description: "Extended Properties allows to store additional information for IdP/SP Connections. The names of these extended properties should be defined in /extendedProperties.",
			},
		},
	}
}

// Metadata returns the resource type name.
func (r *exampleResource) Metadata(_ context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
	resp.TypeName = req.ProviderTypeName + "_example"
}

func (r *exampleResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) {
	plan := exampleResourceModel{
		StringVal: types.StringValue("str"),
		MapVal: types.MapValueMust(types.ObjectType{
			AttrTypes: map[string]attr.Type{
				"values": types.SetType{
					ElemType: types.StringType,
				},
			}}, map[string]attr.Value{
			"Use Case": types.ObjectValueMust(map[string]attr.Type{
				"values": types.SetType{
					ElemType: types.StringType,
				},
			}, map[string]attr.Value{
				"values": types.SetValueMust(types.StringType, []attr.Value{
					types.StringValue("CIAM"),
				}),
			}),
		}),
	}
	diags := resp.State.Set(ctx, plan)
	resp.Diagnostics.Append(diags...)
}

func (r *exampleResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) {
	plan := exampleResourceModel{
		StringVal: types.StringValue("str"),
		MapVal: types.MapValueMust(types.ObjectType{
			AttrTypes: map[string]attr.Type{
				"values": types.SetType{
					ElemType: types.StringType,
				},
			}}, map[string]attr.Value{
			"Use Case": types.ObjectValueMust(map[string]attr.Type{
				"values": types.SetType{
					ElemType: types.StringType,
				},
			}, map[string]attr.Value{
				"values": types.SetValueMust(types.StringType, []attr.Value{
					types.StringValue("CIAM"),
				}),
			}),
		}),
	}
	diags := resp.State.Set(ctx, plan)
	resp.Diagnostics.Append(diags...)
}

// Update updates the resource and sets the updated Terraform state on success.
func (r *exampleResource) Update(ctx context.Context, req resource.UpdateRequest, resp *resource.UpdateResponse) {
	plan := exampleResourceModel{
		StringVal: types.StringValue("str"),
		MapVal: types.MapValueMust(types.ObjectType{
			AttrTypes: map[string]attr.Type{
				"values": types.SetType{
					ElemType: types.StringType,
				},
			}}, map[string]attr.Value{
			"Use Case": types.ObjectValueMust(map[string]attr.Type{
				"values": types.SetType{
					ElemType: types.StringType,
				},
			}, map[string]attr.Value{
				"values": types.SetValueMust(types.StringType, []attr.Value{
					types.StringValue("CIAM"),
				}),
			}),
		}),
	}
	diags := resp.State.Set(ctx, plan)
	resp.Diagnostics.Append(diags...)
}

// No backend so no logic needed
func (r *exampleResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) {
}

func (r *exampleResource) ImportState(ctx context.Context, req resource.ImportStateRequest, resp *resource.ImportStateResponse) {
	resource.ImportStatePassthroughID(ctx, path.Root("string_val"), req, resp)
}

Additional Context

No response

References

No response

[henryrecker-pingidentity]

It looks like this may be a problem with periods in map keys as well - in the case of periods the HCL can be generated, but there ends up being an error about an undeclared resource:

│ Error: Reference to undeclared resource
│
│   on generated_resources.tf line 34:
│   (source code not available)
│
│ A managed resource "policy" "action" has not been declared in the root module.

With generated HCL that looks like this:

attribute_contract_fulfillment = {
      policy.action = {
        source = {
          id   = null
          type = "ADAPTER"
        }
        value = "policy.action"
      }
}

It looks like the "policy.action" value ought to be in quotes.

[henryrecker-pingidentity]

@DanielMSchmidt It doesn't look to me like that merge request fixes the problem I added in a comment yesterday for when map keys have periods.

[DanielMSchmidt]

Yeah, I agree, let me re-open this again 👍