internal/core/eval: verify issue 306 is fixed
Change-Id: Ie54471b0d2459831c52e2ca53c4a648f6510cd3a
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/6944
Reviewed-by: CUE cueckoo <cueckoo@gmail.com>
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
diff --git a/cue/testdata/cycle/issue306.txtar b/cue/testdata/cycle/issue306.txtar
new file mode 100644
index 0000000..a83b30f
--- /dev/null
+++ b/cue/testdata/cycle/issue306.txtar
@@ -0,0 +1,38 @@
+-- in.cue --
+a: 12
+#Controller: settings: {
+ controller: #Controller
+}
+
+-- out/eval --
+Errors:
+#Controller.settings.controller: structural cycle
+
+Result:
+(_|_){
+ // [structural cycle]
+ a: (int){ 12 }
+ #Controller: (_|_){
+ // [structural cycle]
+ settings: (_|_){
+ // [structural cycle]
+ controller: (_|_){
+ // [structural cycle] #Controller.settings.controller: structural cycle
+ settings: (_|_){// {
+ // controller: 〈2;#Controller〉
+ // }
+ }
+ }
+ }
+ }
+}
+-- out/compile --
+--- in.cue
+{
+ a: 12
+ #Controller: {
+ settings: {
+ controller: 〈2;#Controller〉
+ }
+ }
+}
