Check for exported fields in embedded structs

This fixes a exported field check condition in a way described at Go
issue https://golang.org/issue/12367

According to the issue comments, this fix should be safe under Go 1.6.

diff --git a/tpl/template_funcs.go b/tpl/template_funcs.go
index 498a38c5e95a129d6281bfeed236fcb7425c2c6c..46b82a5aa3e32189c769fe386670a1b82ededff2 100644 (file)
--- a/tpl/template_funcs.go
+++ b/tpl/template_funcs.go
@@ -588,7 +588,7 @@ func evaluateSubElem(obj reflect.Value, elemName string) (reflect.Value, error)
        case reflect.Struct:
                ft, ok := obj.Type().FieldByName(elemName)
                if ok {
-                       if ft.PkgPath != "" {
+                       if ft.PkgPath != "" && !ft.Anonymous {
                                return zero, fmt.Errorf("%s is an unexported field of struct type %s", elemName, typ)
                        }
                        return obj.FieldByIndex(ft.Index), nil