diff options
Diffstat (limited to 'vendor/github.com/mitchellh/mapstructure')
5 files changed, 210 insertions, 36 deletions
diff --git a/vendor/github.com/mitchellh/mapstructure/.travis.yml b/vendor/github.com/mitchellh/mapstructure/.travis.yml index d9deadb8..1689c7d7 100644 --- a/vendor/github.com/mitchellh/mapstructure/.travis.yml +++ b/vendor/github.com/mitchellh/mapstructure/.travis.yml @@ -1,7 +1,7 @@ language: go go: - - 1.9.x + - "1.11.x" - tip script: diff --git a/vendor/github.com/mitchellh/mapstructure/CHANGELOG.md b/vendor/github.com/mitchellh/mapstructure/CHANGELOG.md new file mode 100644 index 00000000..3b3cb723 --- /dev/null +++ b/vendor/github.com/mitchellh/mapstructure/CHANGELOG.md @@ -0,0 +1,21 @@ +## 1.1.2 + +* Fix error when decode hook decodes interface implementation into interface + type. [GH-140] + +## 1.1.1 + +* Fix panic that can happen in `decodePtr` + +## 1.1.0 + +* Added `StringToIPHookFunc` to convert `string` to `net.IP` and `net.IPNet` [GH-133] +* Support struct to struct decoding [GH-137] +* If source map value is nil, then destination map value is nil (instead of empty) +* If source slice value is nil, then destination slice value is nil (instead of empty) +* If source pointer is nil, then destination pointer is set to nil (instead of + allocated zero value of type) + +## 1.0.0 + +* Initial tagged stable release. diff --git a/vendor/github.com/mitchellh/mapstructure/decode_hooks.go b/vendor/github.com/mitchellh/mapstructure/decode_hooks.go index 2a727575..1f0abc65 100644 --- a/vendor/github.com/mitchellh/mapstructure/decode_hooks.go +++ b/vendor/github.com/mitchellh/mapstructure/decode_hooks.go @@ -2,6 +2,8 @@ package mapstructure import ( "errors" + "fmt" + "net" "reflect" "strconv" "strings" @@ -115,6 +117,50 @@ func StringToTimeDurationHookFunc() DecodeHookFunc { } } +// StringToIPHookFunc returns a DecodeHookFunc that converts +// strings to net.IP +func StringToIPHookFunc() DecodeHookFunc { + return func( + f reflect.Type, + t reflect.Type, + data interface{}) (interface{}, error) { + if f.Kind() != reflect.String { + return data, nil + } + if t != reflect.TypeOf(net.IP{}) { + return data, nil + } + + // Convert it by parsing + ip := net.ParseIP(data.(string)) + if ip == nil { + return net.IP{}, fmt.Errorf("failed parsing ip %v", data) + } + + return ip, nil + } +} + +// StringToIPNetHookFunc returns a DecodeHookFunc that converts +// strings to net.IPNet +func StringToIPNetHookFunc() DecodeHookFunc { + return func( + f reflect.Type, + t reflect.Type, + data interface{}) (interface{}, error) { + if f.Kind() != reflect.String { + return data, nil + } + if t != reflect.TypeOf(net.IPNet{}) { + return data, nil + } + + // Convert it by parsing + _, net, err := net.ParseCIDR(data.(string)) + return net, err + } +} + // StringToTimeHookFunc returns a DecodeHookFunc that converts // strings to time.Time. func StringToTimeHookFunc(layout string) DecodeHookFunc { diff --git a/vendor/github.com/mitchellh/mapstructure/go.mod b/vendor/github.com/mitchellh/mapstructure/go.mod new file mode 100644 index 00000000..d2a71256 --- /dev/null +++ b/vendor/github.com/mitchellh/mapstructure/go.mod @@ -0,0 +1 @@ +module github.com/mitchellh/mapstructure diff --git a/vendor/github.com/mitchellh/mapstructure/mapstructure.go b/vendor/github.com/mitchellh/mapstructure/mapstructure.go index aaf12a29..256ee63f 100644 --- a/vendor/github.com/mitchellh/mapstructure/mapstructure.go +++ b/vendor/github.com/mitchellh/mapstructure/mapstructure.go @@ -224,6 +224,17 @@ func (d *Decoder) Decode(input interface{}) error { // Decodes an unknown data type into a specific reflection value. func (d *Decoder) decode(name string, input interface{}, outVal reflect.Value) error { + var inputVal reflect.Value + if input != nil { + inputVal = reflect.ValueOf(input) + + // We need to check here if input is a typed nil. Typed nils won't + // match the "input == nil" below so we check that here. + if inputVal.Kind() == reflect.Ptr && inputVal.IsNil() { + input = nil + } + } + if input == nil { // If the data is nil, then we don't set anything, unless ZeroFields is set // to true. @@ -237,7 +248,6 @@ func (d *Decoder) decode(name string, input interface{}, outVal reflect.Value) e return nil } - inputVal := reflect.ValueOf(input) if !inputVal.IsValid() { // If the input value is invalid, then we just set the value // to be the zero value. @@ -260,8 +270,8 @@ func (d *Decoder) decode(name string, input interface{}, outVal reflect.Value) e } var err error - inputKind := getKind(outVal) - switch inputKind { + outputKind := getKind(outVal) + switch outputKind { case reflect.Bool: err = d.decodeBool(name, input, outVal) case reflect.Interface: @@ -288,7 +298,7 @@ func (d *Decoder) decode(name string, input interface{}, outVal reflect.Value) e err = d.decodeFunc(name, input, outVal) default: // If we reached this point then we weren't able to decode it - return fmt.Errorf("%s: unsupported type: %s", name, inputKind) + return fmt.Errorf("%s: unsupported type: %s", name, outputKind) } // If we reached here, then we successfully decoded SOMETHING, so @@ -306,7 +316,16 @@ func (d *Decoder) decodeBasic(name string, data interface{}, val reflect.Value) if val.IsValid() && val.Elem().IsValid() { return d.decode(name, data, val.Elem()) } + dataVal := reflect.ValueOf(data) + + // If the input data is a pointer, and the assigned type is the dereference + // of that exact pointer, then indirect it so that we can assign it. + // Example: *string to string + if dataVal.Kind() == reflect.Ptr && dataVal.Type().Elem() == val.Type() { + dataVal = reflect.Indirect(dataVal) + } + if !dataVal.IsValid() { dataVal = reflect.Zero(val.Type()) } @@ -323,7 +342,7 @@ func (d *Decoder) decodeBasic(name string, data interface{}, val reflect.Value) } func (d *Decoder) decodeString(name string, data interface{}, val reflect.Value) error { - dataVal := reflect.ValueOf(data) + dataVal := reflect.Indirect(reflect.ValueOf(data)) dataKind := getKind(dataVal) converted := true @@ -375,7 +394,7 @@ func (d *Decoder) decodeString(name string, data interface{}, val reflect.Value) } func (d *Decoder) decodeInt(name string, data interface{}, val reflect.Value) error { - dataVal := reflect.ValueOf(data) + dataVal := reflect.Indirect(reflect.ValueOf(data)) dataKind := getKind(dataVal) dataType := dataVal.Type() @@ -417,7 +436,7 @@ func (d *Decoder) decodeInt(name string, data interface{}, val reflect.Value) er } func (d *Decoder) decodeUint(name string, data interface{}, val reflect.Value) error { - dataVal := reflect.ValueOf(data) + dataVal := reflect.Indirect(reflect.ValueOf(data)) dataKind := getKind(dataVal) switch { @@ -460,7 +479,7 @@ func (d *Decoder) decodeUint(name string, data interface{}, val reflect.Value) e } func (d *Decoder) decodeBool(name string, data interface{}, val reflect.Value) error { - dataVal := reflect.ValueOf(data) + dataVal := reflect.Indirect(reflect.ValueOf(data)) dataKind := getKind(dataVal) switch { @@ -491,7 +510,7 @@ func (d *Decoder) decodeBool(name string, data interface{}, val reflect.Value) e } func (d *Decoder) decodeFloat(name string, data interface{}, val reflect.Value) error { - dataVal := reflect.ValueOf(data) + dataVal := reflect.Indirect(reflect.ValueOf(data)) dataKind := getKind(dataVal) dataType := dataVal.Type() @@ -595,6 +614,20 @@ func (d *Decoder) decodeMapFromMap(name string, dataVal reflect.Value, val refle // Accumulate errors errors := make([]string, 0) + // If the input data is empty, then we just match what the input data is. + if dataVal.Len() == 0 { + if dataVal.IsNil() { + if !val.IsNil() { + val.Set(dataVal) + } + } else { + // Set to empty allocated value + val.Set(valMap) + } + + return nil + } + for _, k := range dataVal.MapKeys() { fieldName := fmt.Sprintf("%s[%s]", name, k) @@ -644,16 +677,28 @@ func (d *Decoder) decodeMapFromStruct(name string, dataVal reflect.Value, val re return fmt.Errorf("cannot assign type '%s' to map value field of type '%s'", v.Type(), valMap.Type().Elem()) } + tagValue := f.Tag.Get(d.config.TagName) + tagParts := strings.Split(tagValue, ",") + // Determine the name of the key in the map keyName := f.Name - tagValue := f.Tag.Get(d.config.TagName) - tagValue = strings.SplitN(tagValue, ",", 2)[0] - if tagValue != "" { - if tagValue == "-" { + if tagParts[0] != "" { + if tagParts[0] == "-" { continue } + keyName = tagParts[0] + } - keyName = tagValue + // If "squash" is specified in the tag, we squash the field down. + squash := false + for _, tag := range tagParts[1:] { + if tag == "squash" { + squash = true + break + } + } + if squash && v.Kind() != reflect.Struct { + return fmt.Errorf("cannot squash non-struct type '%s'", v.Type()) } switch v.Kind() { @@ -673,7 +718,13 @@ func (d *Decoder) decodeMapFromStruct(name string, dataVal reflect.Value, val re return err } - valMap.SetMapIndex(reflect.ValueOf(keyName), vMap) + if squash { + for _, k := range vMap.MapKeys() { + valMap.SetMapIndex(k, vMap.MapIndex(k)) + } + } else { + valMap.SetMapIndex(reflect.ValueOf(keyName), vMap) + } default: valMap.SetMapIndex(reflect.ValueOf(keyName), v) @@ -688,11 +739,33 @@ func (d *Decoder) decodeMapFromStruct(name string, dataVal reflect.Value, val re } func (d *Decoder) decodePtr(name string, data interface{}, val reflect.Value) error { + // If the input data is nil, then we want to just set the output + // pointer to be nil as well. + isNil := data == nil + if !isNil { + switch v := reflect.Indirect(reflect.ValueOf(data)); v.Kind() { + case reflect.Chan, + reflect.Func, + reflect.Interface, + reflect.Map, + reflect.Ptr, + reflect.Slice: + isNil = v.IsNil() + } + } + if isNil { + if !val.IsNil() && val.CanSet() { + nilValue := reflect.New(val.Type()).Elem() + val.Set(nilValue) + } + + return nil + } + // Create an element of the concrete (non pointer) type and decode // into that. Then set the value of the pointer to this type. valType := val.Type() valElemType := valType.Elem() - if val.CanSet() { realVal := val if realVal.IsNil() || d.config.ZeroFields { @@ -734,30 +807,44 @@ func (d *Decoder) decodeSlice(name string, data interface{}, val reflect.Value) valSlice := val if valSlice.IsNil() || d.config.ZeroFields { - // Check input type - if dataValKind != reflect.Array && dataValKind != reflect.Slice { - if d.config.WeaklyTypedInput { - switch { - // Empty maps turn into empty slices - case dataValKind == reflect.Map: - if dataVal.Len() == 0 { - val.Set(reflect.MakeSlice(sliceType, 0, 0)) - return nil - } - case dataValKind == reflect.String && valElemType.Kind() == reflect.Uint8: - return d.decodeSlice(name, []byte(dataVal.String()), val) - // All other types we try to convert to the slice type - // and "lift" it into it. i.e. a string becomes a string slice. - default: - // Just re-try this function with data as a slice. - return d.decodeSlice(name, []interface{}{data}, val) + if d.config.WeaklyTypedInput { + switch { + // Slice and array we use the normal logic + case dataValKind == reflect.Slice, dataValKind == reflect.Array: + break + + // Empty maps turn into empty slices + case dataValKind == reflect.Map: + if dataVal.Len() == 0 { + val.Set(reflect.MakeSlice(sliceType, 0, 0)) + return nil } + // Create slice of maps of other sizes + return d.decodeSlice(name, []interface{}{data}, val) + + case dataValKind == reflect.String && valElemType.Kind() == reflect.Uint8: + return d.decodeSlice(name, []byte(dataVal.String()), val) + + // All other types we try to convert to the slice type + // and "lift" it into it. i.e. a string becomes a string slice. + default: + // Just re-try this function with data as a slice. + return d.decodeSlice(name, []interface{}{data}, val) } + } + + // Check input type + if dataValKind != reflect.Array && dataValKind != reflect.Slice { return fmt.Errorf( "'%s': source data must be an array or slice, got %s", name, dataValKind) } + // If the input value is empty, then don't allocate since non-nil != nil + if dataVal.Len() == 0 { + return nil + } + // Make a new slice to hold our result, same size as the original data. valSlice = reflect.MakeSlice(sliceType, dataVal.Len(), dataVal.Len()) } @@ -867,10 +954,29 @@ func (d *Decoder) decodeStruct(name string, data interface{}, val reflect.Value) } dataValKind := dataVal.Kind() - if dataValKind != reflect.Map { - return fmt.Errorf("'%s' expected a map, got '%s'", name, dataValKind) + switch dataValKind { + case reflect.Map: + return d.decodeStructFromMap(name, dataVal, val) + + case reflect.Struct: + // Not the most efficient way to do this but we can optimize later if + // we want to. To convert from struct to struct we go to map first + // as an intermediary. + m := make(map[string]interface{}) + mval := reflect.Indirect(reflect.ValueOf(&m)) + if err := d.decodeMapFromStruct(name, dataVal, mval, mval); err != nil { + return err + } + + result := d.decodeStructFromMap(name, mval, val) + return result + + default: + return fmt.Errorf("'%s' expected a map, got '%s'", name, dataVal.Kind()) } +} +func (d *Decoder) decodeStructFromMap(name string, dataVal, val reflect.Value) error { dataValType := dataVal.Type() if kind := dataValType.Key().Kind(); kind != reflect.String && kind != reflect.Interface { return fmt.Errorf( |