Import of https://github.com/ciena/voltctl at commit 40d61fbf3f910ed4017cf67c9c79e8e1f82a33a5
Change-Id: I8464c59e60d76cb8612891db3303878975b5416c
diff --git a/vendor/github.com/jhump/protoreflect/dynamic/maps_1.11.go b/vendor/github.com/jhump/protoreflect/dynamic/maps_1.11.go
new file mode 100644
index 0000000..bb68d7b
--- /dev/null
+++ b/vendor/github.com/jhump/protoreflect/dynamic/maps_1.11.go
@@ -0,0 +1,129 @@
+//+build !go1.12
+
+package dynamic
+
+import (
+ "github.com/jhump/protoreflect/desc"
+ "reflect"
+)
+
+// Pre-Go-1.12, we must use reflect.Value.MapKeys to reflectively
+// iterate a map. (We can be more efficient in Go 1.12 and up...)
+
+func mapsEqual(a, b reflect.Value) bool {
+ if a.Len() != b.Len() {
+ return false
+ }
+ if a.Len() == 0 && b.Len() == 0 {
+ // Optimize the case where maps are frequently empty because MapKeys()
+ // function allocates heavily.
+ return true
+ }
+
+ for _, k := range a.MapKeys() {
+ av := a.MapIndex(k)
+ bv := b.MapIndex(k)
+ if !bv.IsValid() {
+ return false
+ }
+ if !fieldsEqual(av.Interface(), bv.Interface()) {
+ return false
+ }
+ }
+ return true
+}
+
+func validFieldValueForMapField(fd *desc.FieldDescriptor, val reflect.Value) (interface{}, error) {
+ // make a defensive copy while we check the contents
+ // (also converts to map[interface{}]interface{} if it's some other type)
+ keyField := fd.GetMessageType().GetFields()[0]
+ valField := fd.GetMessageType().GetFields()[1]
+ m := map[interface{}]interface{}{}
+ for _, k := range val.MapKeys() {
+ if k.Kind() == reflect.Interface {
+ // unwrap it
+ k = reflect.ValueOf(k.Interface())
+ }
+ kk, err := validFieldValueForRv(keyField, k)
+ if err != nil {
+ return nil, err
+ }
+ v := val.MapIndex(k)
+ if v.Kind() == reflect.Interface {
+ // unwrap it
+ v = reflect.ValueOf(v.Interface())
+ }
+ vv, err := validFieldValueForRv(valField, v)
+ if err != nil {
+ return nil, err
+ }
+ m[kk] = vv
+ }
+ return m, nil
+}
+
+func canConvertMap(src reflect.Value, target reflect.Type) bool {
+ kt := target.Key()
+ vt := target.Elem()
+ for _, k := range src.MapKeys() {
+ if !canConvert(k, kt) {
+ return false
+ }
+ if !canConvert(src.MapIndex(k), vt) {
+ return false
+ }
+ }
+ return true
+}
+
+func mergeMapVal(src, target reflect.Value, targetType reflect.Type) error {
+ tkt := targetType.Key()
+ tvt := targetType.Elem()
+ for _, k := range src.MapKeys() {
+ v := src.MapIndex(k)
+ skt := k.Type()
+ svt := v.Type()
+ var nk, nv reflect.Value
+ if tkt == skt {
+ nk = k
+ } else if tkt.Kind() == reflect.Ptr && tkt.Elem() == skt {
+ nk = k.Addr()
+ } else {
+ nk = reflect.New(tkt).Elem()
+ if err := mergeVal(k, nk); err != nil {
+ return err
+ }
+ }
+ if tvt == svt {
+ nv = v
+ } else if tvt.Kind() == reflect.Ptr && tvt.Elem() == svt {
+ nv = v.Addr()
+ } else {
+ nv = reflect.New(tvt).Elem()
+ if err := mergeVal(v, nv); err != nil {
+ return err
+ }
+ }
+ if target.IsNil() {
+ target.Set(reflect.MakeMap(targetType))
+ }
+ target.SetMapIndex(nk, nv)
+ }
+ return nil
+}
+
+func mergeMapField(m *Message, fd *desc.FieldDescriptor, rv reflect.Value) error {
+ for _, k := range rv.MapKeys() {
+ if k.Kind() == reflect.Interface && !k.IsNil() {
+ k = k.Elem()
+ }
+ v := rv.MapIndex(k)
+ if v.Kind() == reflect.Interface && !v.IsNil() {
+ v = v.Elem()
+ }
+ if err := m.putMapField(fd, k.Interface(), v.Interface()); err != nil {
+ return err
+ }
+ }
+ return nil
+}