allow language experiments for terraform show

internal/command/show.go

@@ -267,7 +267,7 @@ func (c *ShowCommand) getPlanFromPath(path string) (*plans.Plan, *cloudplan.Remo
 	}
 
 	if lp, ok := pf.Local(); ok {
-		plan, stateFile, config, err = getDataFromPlanfileReader(lp)
+		plan, stateFile, config, err = getDataFromPlanfileReader(lp, c.Meta.AllowExperimentalFeatures)
 	} else if cp, ok := pf.Cloud(); ok {
 		redacted := c.viewType != arguments.ViewJSON
 		jsonPlan, err = c.getDataFromCloudPlan(cp, redacted)
@@ -297,7 +297,7 @@ func (c *ShowCommand) getDataFromCloudPlan(plan *cloudplan.SavedPlanBookmark, re
 }
 
 // getDataFromPlanfileReader returns a plan, statefile, and config, extracted from a local plan file.
-func getDataFromPlanfileReader(planReader *planfile.Reader) (*plans.Plan, *statefile.File, *configs.Config, error) {
+func getDataFromPlanfileReader(planReader *planfile.Reader, allowLanguageExperiments bool) (*plans.Plan, *statefile.File, *configs.Config, error) {
 	// Get plan
 	plan, err := planReader.ReadPlan()
 	if err != nil {
@@ -311,7 +311,7 @@ func getDataFromPlanfileReader(planReader *planfile.Reader) (*plans.Plan, *state
 	}
 
 	// Get config
-	config, diags := planReader.ReadConfig()
+	config, diags := planReader.ReadConfig(allowLanguageExperiments)
 	if diags.HasErrors() {
 		return nil, nil, nil, errUnusable(diags.Err(), "local plan")
 	}

internal/plans/planfile/planfile_test.go

@@ -159,7 +159,7 @@ func TestRoundtrip(t *testing.T) {
 		// Reading from snapshots is tested in the configload package, so
 		// here we'll just test that we can successfully do it, to see if the
 		// glue code in _this_ package is correct.
-		_, diags := pr.ReadConfig()
+		_, diags := pr.ReadConfig(false)
 		if diags.HasErrors() {
 			t.Errorf("when reading config: %s", diags.Err())
 		}

internal/plans/planfile/reader.go

@@ -196,7 +196,7 @@ func (r *Reader) ReadConfigSnapshot() (*configload.Snapshot, error) {
 // Internally this function delegates to the configs/configload package to
 // parse the embedded configuration and so it returns diagnostics (rather than
 // a native Go error as with other methods on Reader).
-func (r *Reader) ReadConfig() (*configs.Config, tfdiags.Diagnostics) {
+func (r *Reader) ReadConfig(allowLanguageExperiments bool) (*configs.Config, tfdiags.Diagnostics) {
 	var diags tfdiags.Diagnostics
 
 	snap, err := r.ReadConfigSnapshot()
@@ -210,6 +210,7 @@ func (r *Reader) ReadConfig() (*configs.Config, tfdiags.Diagnostics) {
 	}
 
 	loader := configload.NewLoaderFromSnapshot(snap)
+	loader.AllowLanguageExperiments(allowLanguageExperiments)
 	rootDir := snap.Modules[""].Dir // Root module base directory
 	config, configDiags := loader.LoadConfig(rootDir)
 	diags = diags.Append(configDiags)

internal/terraform/context_test.go

@@ -807,7 +807,7 @@ func contextOptsForPlanViaFile(t *testing.T, configSnap *configload.Snapshot, pl
 		return nil, nil, nil, err
 	}
 
-	config, diags := pr.ReadConfig()
+	config, diags := pr.ReadConfig(false)
 	if diags.HasErrors() {
 		return nil, nil, nil, diags.Err()
 	}