diff options
Diffstat (limited to 'vendor/github.com/pelletier/go-toml/marshal.go')
-rw-r--r-- | vendor/github.com/pelletier/go-toml/marshal.go | 434 |
1 files changed, 374 insertions, 60 deletions
diff --git a/vendor/github.com/pelletier/go-toml/marshal.go b/vendor/github.com/pelletier/go-toml/marshal.go index dcddad8d..db5a7b4f 100644 --- a/vendor/github.com/pelletier/go-toml/marshal.go +++ b/vendor/github.com/pelletier/go-toml/marshal.go @@ -2,6 +2,7 @@ package toml import ( "bytes" + "encoding" "errors" "fmt" "io" @@ -22,6 +23,7 @@ const ( type tomlOpts struct { name string + nameFromTag bool comment string commented bool multiline bool @@ -68,6 +70,9 @@ const ( var timeType = reflect.TypeOf(time.Time{}) var marshalerType = reflect.TypeOf(new(Marshaler)).Elem() +var unmarshalerType = reflect.TypeOf(new(Unmarshaler)).Elem() +var textMarshalerType = reflect.TypeOf(new(encoding.TextMarshaler)).Elem() +var textUnmarshalerType = reflect.TypeOf(new(encoding.TextUnmarshaler)).Elem() var localDateType = reflect.TypeOf(LocalDate{}) var localTimeType = reflect.TypeOf(LocalTime{}) var localDateTimeType = reflect.TypeOf(LocalDateTime{}) @@ -88,12 +93,16 @@ func isPrimitive(mtype reflect.Type) bool { case reflect.String: return true case reflect.Struct: - return mtype == timeType || mtype == localDateType || mtype == localDateTimeType || mtype == localTimeType || isCustomMarshaler(mtype) + return isTimeType(mtype) default: return false } } +func isTimeType(mtype reflect.Type) bool { + return mtype == timeType || mtype == localDateType || mtype == localDateTimeType || mtype == localTimeType +} + // Check if the given marshal type maps to a Tree slice or array func isTreeSequence(mtype reflect.Type) bool { switch mtype.Kind() { @@ -106,6 +115,30 @@ func isTreeSequence(mtype reflect.Type) bool { } } +// Check if the given marshal type maps to a slice or array of a custom marshaler type +func isCustomMarshalerSequence(mtype reflect.Type) bool { + switch mtype.Kind() { + case reflect.Ptr: + return isCustomMarshalerSequence(mtype.Elem()) + case reflect.Slice, reflect.Array: + return isCustomMarshaler(mtype.Elem()) || isCustomMarshaler(reflect.New(mtype.Elem()).Type()) + default: + return false + } +} + +// Check if the given marshal type maps to a slice or array of a text marshaler type +func isTextMarshalerSequence(mtype reflect.Type) bool { + switch mtype.Kind() { + case reflect.Ptr: + return isTextMarshalerSequence(mtype.Elem()) + case reflect.Slice, reflect.Array: + return isTextMarshaler(mtype.Elem()) || isTextMarshaler(reflect.New(mtype.Elem()).Type()) + default: + return false + } +} + // Check if the given marshal type maps to a non-Tree slice or array func isOtherSequence(mtype reflect.Type) bool { switch mtype.Kind() { @@ -140,12 +173,42 @@ func callCustomMarshaler(mval reflect.Value) ([]byte, error) { return mval.Interface().(Marshaler).MarshalTOML() } +func isTextMarshaler(mtype reflect.Type) bool { + return mtype.Implements(textMarshalerType) && !isTimeType(mtype) +} + +func callTextMarshaler(mval reflect.Value) ([]byte, error) { + return mval.Interface().(encoding.TextMarshaler).MarshalText() +} + +func isCustomUnmarshaler(mtype reflect.Type) bool { + return mtype.Implements(unmarshalerType) +} + +func callCustomUnmarshaler(mval reflect.Value, tval interface{}) error { + return mval.Interface().(Unmarshaler).UnmarshalTOML(tval) +} + +func isTextUnmarshaler(mtype reflect.Type) bool { + return mtype.Implements(textUnmarshalerType) +} + +func callTextUnmarshaler(mval reflect.Value, text []byte) error { + return mval.Interface().(encoding.TextUnmarshaler).UnmarshalText(text) +} + // Marshaler is the interface implemented by types that // can marshal themselves into valid TOML. type Marshaler interface { MarshalTOML() ([]byte, error) } +// Unmarshaler is the interface implemented by types that +// can unmarshal a TOML description of themselves. +type Unmarshaler interface { + UnmarshalTOML(interface{}) error +} + /* Marshal returns the TOML encoding of v. Behavior is similar to the Go json encoder, except that there is no concept of a Marshaler interface or MarshalTOML @@ -190,20 +253,23 @@ type Encoder struct { w io.Writer encOpts annotation - line int - col int - order marshalOrder + line int + col int + order marshalOrder + promoteAnon bool + indentation string } // NewEncoder returns a new encoder that writes to w. func NewEncoder(w io.Writer) *Encoder { return &Encoder{ - w: w, - encOpts: encOptsDefaults, - annotation: annotationDefault, - line: 0, - col: 1, - order: OrderAlphabetical, + w: w, + encOpts: encOptsDefaults, + annotation: annotationDefault, + line: 0, + col: 1, + order: OrderAlphabetical, + indentation: " ", } } @@ -255,6 +321,12 @@ func (e *Encoder) Order(ord marshalOrder) *Encoder { return e } +// Indentation allows to change indentation when marshalling. +func (e *Encoder) Indentation(indent string) *Encoder { + e.indentation = indent + return e +} + // SetTagName allows changing default tag "toml" func (e *Encoder) SetTagName(v string) *Encoder { e.tag = v @@ -279,8 +351,31 @@ func (e *Encoder) SetTagMultiline(v string) *Encoder { return e } +// PromoteAnonymous allows to change how anonymous struct fields are marshaled. +// Usually, they are marshaled as if the inner exported fields were fields in +// the outer struct. However, if an anonymous struct field is given a name in +// its TOML tag, it is treated like a regular struct field with that name. +// rather than being anonymous. +// +// In case anonymous promotion is enabled, all anonymous structs are promoted +// and treated like regular struct fields. +func (e *Encoder) PromoteAnonymous(promote bool) *Encoder { + e.promoteAnon = promote + return e +} + func (e *Encoder) marshal(v interface{}) ([]byte, error) { + // Check if indentation is valid + for _, char := range e.indentation { + if !isSpace(char) { + return []byte{}, fmt.Errorf("invalid indentation: must only contains space or tab characters") + } + } + mtype := reflect.TypeOf(v) + if mtype == nil { + return []byte{}, errors.New("nil cannot be marshaled to TOML") + } switch mtype.Kind() { case reflect.Struct, reflect.Map: @@ -288,6 +383,9 @@ func (e *Encoder) marshal(v interface{}) ([]byte, error) { if mtype.Elem().Kind() != reflect.Struct { return []byte{}, errors.New("Only pointer to struct can be marshaled to TOML") } + if reflect.ValueOf(v).IsNil() { + return []byte{}, errors.New("nil pointer cannot be marshaled to TOML") + } default: return []byte{}, errors.New("Only a struct or map can be marshaled to TOML") } @@ -296,13 +394,16 @@ func (e *Encoder) marshal(v interface{}) ([]byte, error) { if isCustomMarshaler(mtype) { return callCustomMarshaler(sval) } + if isTextMarshaler(mtype) { + return callTextMarshaler(sval) + } t, err := e.valueToTree(mtype, sval) if err != nil { return []byte{}, err } var buf bytes.Buffer - _, err = t.writeToOrdered(&buf, "", "", 0, e.arraysOneElementPerLine, e.order, false) + _, err = t.writeToOrdered(&buf, "", "", 0, e.arraysOneElementPerLine, e.order, e.indentation, false) return buf.Bytes(), err } @@ -332,12 +433,15 @@ func (e *Encoder) valueToTree(mtype reflect.Type, mval reflect.Value) (*Tree, er if err != nil { return nil, err } - - tval.SetWithOptions(opts.name, SetOptions{ - Comment: opts.comment, - Commented: opts.commented, - Multiline: opts.multiline, - }, val) + if tree, ok := val.(*Tree); ok && mtypef.Anonymous && !opts.nameFromTag && !e.promoteAnon { + e.appendTree(tval, tree) + } else { + tval.SetPathWithOptions([]string{opts.name}, SetOptions{ + Comment: opts.comment, + Commented: opts.commented, + Multiline: opts.multiline, + }, val) + } } } } @@ -371,13 +475,13 @@ func (e *Encoder) valueToTree(mtype reflect.Type, mval reflect.Value) (*Tree, er return nil, err } if e.quoteMapKeys { - keyStr, err := tomlValueStringRepresentation(key.String(), "", "", e.arraysOneElementPerLine) + keyStr, err := tomlValueStringRepresentation(key.String(), "", "", e.order, e.arraysOneElementPerLine) if err != nil { return nil, err } tval.SetPath([]string{keyStr}, val) } else { - tval.Set(key.String(), val) + tval.SetPath([]string{key.String()}, val) } } } @@ -399,9 +503,6 @@ func (e *Encoder) valueToTreeSlice(mtype reflect.Type, mval reflect.Value) ([]*T // Convert given marshal slice to slice of toml values func (e *Encoder) valueToOtherSlice(mtype reflect.Type, mval reflect.Value) (interface{}, error) { - if mtype.Elem().Kind() == reflect.Interface { - return nil, fmt.Errorf("marshal can't handle []interface{}") - } tval := make([]interface{}, mval.Len(), mval.Len()) for i := 0; i < mval.Len(); i++ { val, err := e.valueToToml(mtype.Elem(), mval.Index(i)) @@ -417,7 +518,14 @@ func (e *Encoder) valueToOtherSlice(mtype reflect.Type, mval reflect.Value) (int func (e *Encoder) valueToToml(mtype reflect.Type, mval reflect.Value) (interface{}, error) { e.line++ if mtype.Kind() == reflect.Ptr { - return e.valueToToml(mtype.Elem(), mval.Elem()) + switch { + case isCustomMarshaler(mtype): + return callCustomMarshaler(mval) + case isTextMarshaler(mtype): + return callTextMarshaler(mval) + default: + return e.valueToToml(mtype.Elem(), mval.Elem()) + } } if mtype.Kind() == reflect.Interface { return e.valueToToml(mval.Elem().Type(), mval.Elem()) @@ -425,12 +533,14 @@ func (e *Encoder) valueToToml(mtype reflect.Type, mval reflect.Value) (interface switch { case isCustomMarshaler(mtype): return callCustomMarshaler(mval) + case isTextMarshaler(mtype): + return callTextMarshaler(mval) case isTree(mtype): return e.valueToTree(mtype, mval) + case isOtherSequence(mtype), isCustomMarshalerSequence(mtype), isTextMarshalerSequence(mtype): + return e.valueToOtherSlice(mtype, mval) case isTreeSequence(mtype): return e.valueToTreeSlice(mtype, mval) - case isOtherSequence(mtype): - return e.valueToOtherSlice(mtype, mval) default: switch mtype.Kind() { case reflect.Bool: @@ -454,6 +564,19 @@ func (e *Encoder) valueToToml(mtype reflect.Type, mval reflect.Value) (interface } } +func (e *Encoder) appendTree(t, o *Tree) error { + for key, value := range o.values { + if _, ok := t.values[key]; ok { + continue + } + if tomlValue, ok := value.(*tomlValue); ok { + tomlValue.position.Col = t.position.Col + } + t.values[key] = value + } + return nil +} + // Unmarshal attempts to unmarshal the Tree into a Go struct pointed by v. // Neither Unmarshaler interfaces nor UnmarshalTOML functions are supported for // sub-structs, and only definite types can be unmarshaled. @@ -506,6 +629,8 @@ type Decoder struct { tval *Tree encOpts tagName string + strict bool + visitor visitorState } // NewDecoder returns a new decoder that reads from r. @@ -536,8 +661,18 @@ func (d *Decoder) SetTagName(v string) *Decoder { return d } +// Strict allows changing to strict decoding. Any fields that are found in the +// input data and do not have a corresponding struct member cause an error. +func (d *Decoder) Strict(strict bool) *Decoder { + d.strict = strict + return d +} + func (d *Decoder) unmarshal(v interface{}) error { mtype := reflect.TypeOf(v) + if mtype == nil { + return errors.New("nil cannot be unmarshaled from TOML") + } if mtype.Kind() != reflect.Ptr { return errors.New("only a pointer to struct or map can be unmarshaled from TOML") } @@ -550,12 +685,23 @@ func (d *Decoder) unmarshal(v interface{}) error { return errors.New("only a pointer to struct or map can be unmarshaled from TOML") } + if reflect.ValueOf(v).IsNil() { + return errors.New("nil pointer cannot be unmarshaled from TOML") + } + vv := reflect.ValueOf(v).Elem() + if d.strict { + d.visitor = newVisitorState(d.tval) + } + sval, err := d.valueFromTree(elem, d.tval, &vv) if err != nil { return err } + if err := d.visitor.validate(); err != nil { + return err + } reflect.ValueOf(v).Elem().Set(sval) return nil } @@ -566,6 +712,17 @@ func (d *Decoder) valueFromTree(mtype reflect.Type, tval *Tree, mval1 *reflect.V if mtype.Kind() == reflect.Ptr { return d.unwrapPointer(mtype, tval, mval1) } + + // Check if pointer to value implements the Unmarshaler interface. + if mvalPtr := reflect.New(mtype); isCustomUnmarshaler(mvalPtr.Type()) { + d.visitor.visitAll() + + if err := callCustomUnmarshaler(mvalPtr, tval.ToMap()); err != nil { + return reflect.ValueOf(nil), fmt.Errorf("unmarshal toml: %v", err) + } + return mvalPtr.Elem(), nil + } + var mval reflect.Value switch mtype.Kind() { case reflect.Struct: @@ -597,18 +754,21 @@ func (d *Decoder) valueFromTree(mtype reflect.Type, tval *Tree, mval1 *reflect.V found := false if tval != nil { for _, key := range keysToTry { - exists := tval.Has(key) + exists := tval.HasPath([]string{key}) if !exists { continue } - val := tval.Get(key) + + d.visitor.push(key) + val := tval.GetPath([]string{key}) fval := mval.Field(i) mvalf, err := d.valueFromToml(mtypef.Type, val, &fval) if err != nil { - return mval, formatError(err, tval.GetPosition(key)) + return mval, formatError(err, tval.GetPositionPath([]string{key})) } mval.Field(i).Set(mvalf) found = true + d.visitor.pop() break } } @@ -618,32 +778,42 @@ func (d *Decoder) valueFromTree(mtype reflect.Type, tval *Tree, mval1 *reflect.V var val interface{} var err error switch mvalf.Kind() { + case reflect.String: + val = opts.defaultValue case reflect.Bool: val, err = strconv.ParseBool(opts.defaultValue) - if err != nil { - return mval.Field(i), err - } + case reflect.Uint: + val, err = strconv.ParseUint(opts.defaultValue, 10, 0) + case reflect.Uint8: + val, err = strconv.ParseUint(opts.defaultValue, 10, 8) + case reflect.Uint16: + val, err = strconv.ParseUint(opts.defaultValue, 10, 16) + case reflect.Uint32: + val, err = strconv.ParseUint(opts.defaultValue, 10, 32) + case reflect.Uint64: + val, err = strconv.ParseUint(opts.defaultValue, 10, 64) case reflect.Int: - val, err = strconv.Atoi(opts.defaultValue) - if err != nil { - return mval.Field(i), err - } - case reflect.String: - val = opts.defaultValue + val, err = strconv.ParseInt(opts.defaultValue, 10, 0) + case reflect.Int8: + val, err = strconv.ParseInt(opts.defaultValue, 10, 8) + case reflect.Int16: + val, err = strconv.ParseInt(opts.defaultValue, 10, 16) + case reflect.Int32: + val, err = strconv.ParseInt(opts.defaultValue, 10, 32) case reflect.Int64: val, err = strconv.ParseInt(opts.defaultValue, 10, 64) - if err != nil { - return mval.Field(i), err - } + case reflect.Float32: + val, err = strconv.ParseFloat(opts.defaultValue, 32) case reflect.Float64: val, err = strconv.ParseFloat(opts.defaultValue, 64) - if err != nil { - return mval.Field(i), err - } default: - return mval.Field(i), fmt.Errorf("unsuported field type for default option") + return mvalf, fmt.Errorf("unsupported field type for default option") } - mval.Field(i).Set(reflect.ValueOf(val)) + + if err != nil { + return mvalf, err + } + mvalf.Set(reflect.ValueOf(val).Convert(mvalf.Type())) } // save the old behavior above and try to check structs @@ -652,7 +822,8 @@ func (d *Decoder) valueFromTree(mtype reflect.Type, tval *Tree, mval1 *reflect.V if !mtypef.Anonymous { tmpTval = nil } - v, err := d.valueFromTree(mtypef.Type, tmpTval, nil) + fval := mval.Field(i) + v, err := d.valueFromTree(mtypef.Type, tmpTval, &fval) if err != nil { return v, err } @@ -663,13 +834,15 @@ func (d *Decoder) valueFromTree(mtype reflect.Type, tval *Tree, mval1 *reflect.V case reflect.Map: mval = reflect.MakeMap(mtype) for _, key := range tval.Keys() { + d.visitor.push(key) // TODO: path splits key val := tval.GetPath([]string{key}) mvalf, err := d.valueFromToml(mtype.Elem(), val, nil) if err != nil { - return mval, formatError(err, tval.GetPosition(key)) + return mval, formatError(err, tval.GetPositionPath([]string{key})) } mval.SetMapIndex(reflect.ValueOf(key).Convert(mtype.Key()), mvalf) + d.visitor.pop() } } return mval, nil @@ -677,20 +850,30 @@ func (d *Decoder) valueFromTree(mtype reflect.Type, tval *Tree, mval1 *reflect.V // Convert toml value to marshal struct/map slice, using marshal type func (d *Decoder) valueFromTreeSlice(mtype reflect.Type, tval []*Tree) (reflect.Value, error) { - mval := reflect.MakeSlice(mtype, len(tval), len(tval)) + mval, err := makeSliceOrArray(mtype, len(tval)) + if err != nil { + return mval, err + } + for i := 0; i < len(tval); i++ { + d.visitor.push(strconv.Itoa(i)) val, err := d.valueFromTree(mtype.Elem(), tval[i], nil) if err != nil { return mval, err } mval.Index(i).Set(val) + d.visitor.pop() } return mval, nil } // Convert toml value to marshal primitive slice, using marshal type func (d *Decoder) valueFromOtherSlice(mtype reflect.Type, tval []interface{}) (reflect.Value, error) { - mval := reflect.MakeSlice(mtype, len(tval), len(tval)) + mval, err := makeSliceOrArray(mtype, len(tval)) + if err != nil { + return mval, err + } + for i := 0; i < len(tval); i++ { val, err := d.valueFromToml(mtype.Elem(), tval[i], nil) if err != nil { @@ -701,6 +884,41 @@ func (d *Decoder) valueFromOtherSlice(mtype reflect.Type, tval []interface{}) (r return mval, nil } +// Convert toml value to marshal primitive slice, using marshal type +func (d *Decoder) valueFromOtherSliceI(mtype reflect.Type, tval interface{}) (reflect.Value, error) { + val := reflect.ValueOf(tval) + length := val.Len() + + mval, err := makeSliceOrArray(mtype, length) + if err != nil { + return mval, err + } + + for i := 0; i < length; i++ { + val, err := d.valueFromToml(mtype.Elem(), val.Index(i).Interface(), nil) + if err != nil { + return mval, err + } + mval.Index(i).Set(val) + } + return mval, nil +} + +// Create a new slice or a new array with specified length +func makeSliceOrArray(mtype reflect.Type, tLength int) (reflect.Value, error) { + var mval reflect.Value + switch mtype.Kind() { + case reflect.Slice: + mval = reflect.MakeSlice(mtype, tLength, tLength) + case reflect.Array: + mval = reflect.New(reflect.ArrayOf(mtype.Len(), mtype.Elem())).Elem() + if tLength > mtype.Len() { + return mval, fmt.Errorf("unmarshal: TOML array length (%v) exceeds destination array length (%v)", tLength, mtype.Len()) + } + } + return mval, nil +} + // Convert toml value to marshal value, using marshal type. When mval1 is non-nil // and the given type is a struct value, merge fields into it. func (d *Decoder) valueFromToml(mtype reflect.Type, tval interface{}, mval1 *reflect.Value) (reflect.Value, error) { @@ -742,6 +960,7 @@ func (d *Decoder) valueFromToml(mtype reflect.Type, tval interface{}, mval1 *ref } return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to trees", tval, tval) case []interface{}: + d.visitor.visit() if isOtherSequence(mtype) { return d.valueFromOtherSlice(mtype, t) } @@ -755,6 +974,15 @@ func (d *Decoder) valueFromToml(mtype reflect.Type, tval interface{}, mval1 *ref } return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to a slice", tval, tval) default: + d.visitor.visit() + // Check if pointer to value implements the encoding.TextUnmarshaler. + if mvalPtr := reflect.New(mtype); isTextUnmarshaler(mvalPtr.Type()) && !isTimeType(mtype) { + if err := d.unmarshalText(tval, mvalPtr); err != nil { + return reflect.ValueOf(nil), fmt.Errorf("unmarshal text: %v", err) + } + return mvalPtr.Elem(), nil + } + switch mtype.Kind() { case reflect.Bool, reflect.Struct: val := reflect.ValueOf(tval) @@ -805,34 +1033,34 @@ func (d *Decoder) valueFromToml(mtype reflect.Type, tval interface{}, mval1 *ref } return reflect.ValueOf(d), nil } - if !val.Type().ConvertibleTo(mtype) { + if !val.Type().ConvertibleTo(mtype) || val.Kind() == reflect.Float64 { return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to %v", tval, tval, mtype.String()) } - if reflect.Indirect(reflect.New(mtype)).OverflowInt(val.Convert(mtype).Int()) { + if reflect.Indirect(reflect.New(mtype)).OverflowInt(val.Convert(reflect.TypeOf(int64(0))).Int()) { return reflect.ValueOf(nil), fmt.Errorf("%v(%T) would overflow %v", tval, tval, mtype.String()) } return val.Convert(mtype), nil case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: val := reflect.ValueOf(tval) - if !val.Type().ConvertibleTo(mtype) { + if !val.Type().ConvertibleTo(mtype) || val.Kind() == reflect.Float64 { return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to %v", tval, tval, mtype.String()) } if val.Convert(reflect.TypeOf(int(1))).Int() < 0 { return reflect.ValueOf(nil), fmt.Errorf("%v(%T) is negative so does not fit in %v", tval, tval, mtype.String()) } - if reflect.Indirect(reflect.New(mtype)).OverflowUint(uint64(val.Convert(mtype).Uint())) { + if reflect.Indirect(reflect.New(mtype)).OverflowUint(val.Convert(reflect.TypeOf(uint64(0))).Uint()) { return reflect.ValueOf(nil), fmt.Errorf("%v(%T) would overflow %v", tval, tval, mtype.String()) } return val.Convert(mtype), nil case reflect.Float32, reflect.Float64: val := reflect.ValueOf(tval) - if !val.Type().ConvertibleTo(mtype) { + if !val.Type().ConvertibleTo(mtype) || val.Kind() == reflect.Int64 { return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to %v", tval, tval, mtype.String()) } - if reflect.Indirect(reflect.New(mtype)).OverflowFloat(val.Convert(mtype).Float()) { + if reflect.Indirect(reflect.New(mtype)).OverflowFloat(val.Convert(reflect.TypeOf(float64(0))).Float()) { return reflect.ValueOf(nil), fmt.Errorf("%v(%T) would overflow %v", tval, tval, mtype.String()) } @@ -844,6 +1072,11 @@ func (d *Decoder) valueFromToml(mtype reflect.Type, tval interface{}, mval1 *ref ival := mval1.Elem() return d.valueFromToml(mval1.Elem().Type(), t, &ival) } + case reflect.Slice, reflect.Array: + if isOtherSequence(mtype) && isOtherSequence(reflect.TypeOf(t)) { + return d.valueFromOtherSliceI(mtype, t) + } + return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to %v(%v)", tval, tval, mtype, mtype.Kind()) default: return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to %v(%v)", tval, tval, mtype, mtype.Kind()) } @@ -867,6 +1100,12 @@ func (d *Decoder) unwrapPointer(mtype reflect.Type, tval interface{}, mval1 *ref return mval, nil } +func (d *Decoder) unmarshalText(tval interface{}, mval reflect.Value) error { + var buf bytes.Buffer + fmt.Fprint(&buf, tval) + return callTextUnmarshaler(mval, buf.Bytes()) +} + func tomlOptions(vf reflect.StructField, an annotation) tomlOpts { tag := vf.Tag.Get(an.tag) parse := strings.Split(tag, ",") @@ -879,6 +1118,7 @@ func tomlOptions(vf reflect.StructField, an annotation) tomlOpts { defaultValue := vf.Tag.Get(tagDefault) result := tomlOpts{ name: vf.Name, + nameFromTag: false, comment: comment, commented: commented, multiline: multiline, @@ -891,6 +1131,7 @@ func tomlOptions(vf reflect.StructField, an annotation) tomlOpts { result.include = false } else { result.name = strings.Trim(parse[0], " ") + result.nameFromTag = true } } if vf.PkgPath != "" { @@ -907,11 +1148,7 @@ func tomlOptions(vf reflect.StructField, an annotation) tomlOpts { func isZero(val reflect.Value) bool { switch val.Type().Kind() { - case reflect.Map: - fallthrough - case reflect.Array: - fallthrough - case reflect.Slice: + case reflect.Slice, reflect.Array, reflect.Map: return val.Len() == 0 default: return reflect.DeepEqual(val.Interface(), reflect.Zero(val.Type()).Interface()) @@ -924,3 +1161,80 @@ func formatError(err error, pos Position) error { } return fmt.Errorf("%s: %s", pos, err) } + +// visitorState keeps track of which keys were unmarshaled. +type visitorState struct { + tree *Tree + path []string + keys map[string]struct{} + active bool +} + +func newVisitorState(tree *Tree) visitorState { + path, result := []string{}, map[string]struct{}{} + insertKeys(path, result, tree) + return visitorState{ + tree: tree, + path: path[:0], + keys: result, + active: true, + } +} + +func (s *visitorState) push(key string) { + if s.active { + s.path = append(s.path, key) + } +} + +func (s *visitorState) pop() { + if s.active { + s.path = s.path[:len(s.path)-1] + } +} + +func (s *visitorState) visit() { + if s.active { + delete(s.keys, strings.Join(s.path, ".")) + } +} + +func (s *visitorState) visitAll() { + if s.active { + for k := range s.keys { + if strings.HasPrefix(k, strings.Join(s.path, ".")) { + delete(s.keys, k) + } + } + } +} + +func (s *visitorState) validate() error { + if !s.active { + return nil + } + undecoded := make([]string, 0, len(s.keys)) + for key := range s.keys { + undecoded = append(undecoded, key) + } + sort.Strings(undecoded) + if len(undecoded) > 0 { + return fmt.Errorf("undecoded keys: %q", undecoded) + } + return nil +} + +func insertKeys(path []string, m map[string]struct{}, tree *Tree) { + for k, v := range tree.values { + switch node := v.(type) { + case []*Tree: + for i, item := range node { + insertKeys(append(path, k, strconv.Itoa(i)), m, item) + } + case *Tree: + insertKeys(append(path, k), m, node) + case *tomlValue: + m[strings.Join(append(path, k), ".")] = struct{}{} + } + } +} |