diff options
Diffstat (limited to 'vendor/google.golang.org/api/gensupport/json.go')
-rw-r--r-- | vendor/google.golang.org/api/gensupport/json.go | 49 |
1 files changed, 38 insertions, 11 deletions
diff --git a/vendor/google.golang.org/api/gensupport/json.go b/vendor/google.golang.org/api/gensupport/json.go index 53331b7..c01e321 100644 --- a/vendor/google.golang.org/api/gensupport/json.go +++ b/vendor/google.golang.org/api/gensupport/json.go @@ -22,23 +22,33 @@ func MarshalJSON(schema interface{}, forceSendFields, nullFields []string) ([]by return json.Marshal(schema) } - mustInclude := make(map[string]struct{}) + mustInclude := make(map[string]bool) for _, f := range forceSendFields { - mustInclude[f] = struct{}{} + mustInclude[f] = true } - useNull := make(map[string]struct{}) - for _, f := range nullFields { - useNull[f] = struct{}{} + useNull := make(map[string]bool) + useNullMaps := make(map[string]map[string]bool) + for _, nf := range nullFields { + parts := strings.SplitN(nf, ".", 2) + field := parts[0] + if len(parts) == 1 { + useNull[field] = true + } else { + if useNullMaps[field] == nil { + useNullMaps[field] = map[string]bool{} + } + useNullMaps[field][parts[1]] = true + } } - dataMap, err := schemaToMap(schema, mustInclude, useNull) + dataMap, err := schemaToMap(schema, mustInclude, useNull, useNullMaps) if err != nil { return nil, err } return json.Marshal(dataMap) } -func schemaToMap(schema interface{}, mustInclude, useNull map[string]struct{}) (map[string]interface{}, error) { +func schemaToMap(schema interface{}, mustInclude, useNull map[string]bool, useNullMaps map[string]map[string]bool) (map[string]interface{}, error) { m := make(map[string]interface{}) s := reflect.ValueOf(schema) st := s.Type() @@ -59,17 +69,35 @@ func schemaToMap(schema interface{}, mustInclude, useNull map[string]struct{}) ( v := s.Field(i) f := st.Field(i) - if _, ok := useNull[f.Name]; ok { + if useNull[f.Name] { if !isEmptyValue(v) { return nil, fmt.Errorf("field %q in NullFields has non-empty value", f.Name) } m[tag.apiName] = nil continue } + if !includeField(v, f, mustInclude) { continue } + // If map fields are explicitly set to null, use a map[string]interface{}. + if f.Type.Kind() == reflect.Map && useNullMaps[f.Name] != nil { + ms, ok := v.Interface().(map[string]string) + if !ok { + return nil, fmt.Errorf("field %q has keys in NullFields but is not a map[string]string", f.Name) + } + mi := map[string]interface{}{} + for k, v := range ms { + mi[k] = v + } + for k := range useNullMaps[f.Name] { + mi[k] = nil + } + m[tag.apiName] = mi + continue + } + // nil maps are treated as empty maps. if f.Type.Kind() == reflect.Map && v.IsNil() { m[tag.apiName] = map[string]string{} @@ -139,7 +167,7 @@ func parseJSONTag(val string) (jsonTag, error) { } // Reports whether the struct field "f" with value "v" should be included in JSON output. -func includeField(v reflect.Value, f reflect.StructField, mustInclude map[string]struct{}) bool { +func includeField(v reflect.Value, f reflect.StructField, mustInclude map[string]bool) bool { // The regular JSON encoding of a nil pointer is "null", which means "delete this field". // Therefore, we could enable field deletion by honoring pointer fields' presence in the mustInclude set. // However, many fields are not pointers, so there would be no way to delete these fields. @@ -156,8 +184,7 @@ func includeField(v reflect.Value, f reflect.StructField, mustInclude map[string return false } - _, ok := mustInclude[f.Name] - return ok || !isEmptyValue(v) + return mustInclude[f.Name] || !isEmptyValue(v) } // isEmptyValue reports whether v is the empty value for its type. This |