cue: dig up wrapped error in valueError

Change-Id: Ic65285e5c54b59734da9d9a074416272c26cbe57 Reviewed-on: https://cue-review.googlesource.com/c/cue/+/7682 Reviewed-by: CUE cueckoo <cueckoo@gmail.com> Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
cue-lang · Nov 18, 2020 · f4f2a02 · f4f2a02
1 parent 03abe87
commit f4f2a02
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/cue/errors.go b/cue/errors.go
@@ -41,6 +41,13 @@ type valueError struct {
 	err *bottom
 }
 
+func (e *valueError) Unwrap() error {
+	if e.err.Err == nil {
+		return nil
+	}
+	return errors.Unwrap(e.err.Err)
+}
+
 func (e *valueError) Bottom() *adt.Bottom { return e.err }
 
 func (e *valueError) Error() string {