diff options
Diffstat (limited to 'vendor/google.golang.org/api/internal/gensupport/json.go')
| -rw-r--r-- | vendor/google.golang.org/api/internal/gensupport/json.go | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/vendor/google.golang.org/api/internal/gensupport/json.go b/vendor/google.golang.org/api/internal/gensupport/json.go index c01e32189..eab49a11e 100644 --- a/vendor/google.golang.org/api/internal/gensupport/json.go +++ b/vendor/google.golang.org/api/internal/gensupport/json.go @@ -13,9 +13,10 @@ import ( // MarshalJSON returns a JSON encoding of schema containing only selected fields. // A field is selected if any of the following is true: -// * it has a non-empty value -// * its field name is present in forceSendFields and it is not a nil pointer or nil interface -// * its field name is present in nullFields. +// - it has a non-empty value +// - its field name is present in forceSendFields and it is not a nil pointer or nil interface +// - its field name is present in nullFields. +// // The JSON key for each selected field is taken from the field's json: struct tag. func MarshalJSON(schema interface{}, forceSendFields, nullFields []string) ([]byte, error) { if len(forceSendFields) == 0 && len(nullFields) == 0 { @@ -85,7 +86,12 @@ func schemaToMap(schema interface{}, mustInclude, useNull map[string]bool, useNu 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, err := initMapSlow(v, f.Name, useNullMaps) + if err != nil { + return nil, err + } + m[tag.apiName] = mi + continue } mi := map[string]interface{}{} for k, v := range ms { @@ -119,6 +125,25 @@ func schemaToMap(schema interface{}, mustInclude, useNull map[string]bool, useNu return m, nil } +// initMapSlow uses reflection to build up a map object. This is slower than +// the default behavior so it should be used only as a fallback. +func initMapSlow(rv reflect.Value, fieldName string, useNullMaps map[string]map[string]bool) (map[string]interface{}, error) { + mi := map[string]interface{}{} + iter := rv.MapRange() + for iter.Next() { + k, ok := iter.Key().Interface().(string) + if !ok { + return nil, fmt.Errorf("field %q has keys in NullFields but is not a map[string]any", fieldName) + } + v := iter.Value().Interface() + mi[k] = v + } + for k := range useNullMaps[fieldName] { + mi[k] = nil + } + return mi, nil +} + // formatAsString returns a string representation of v, dereferencing it first if possible. func formatAsString(v reflect.Value, kind reflect.Kind) string { if kind == reflect.Ptr && !v.IsNil() { |