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path: root/vendor/gopkg.in/yaml.v2/encode.go
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-rw-r--r--vendor/gopkg.in/yaml.v2/encode.go390
1 files changed, 0 insertions, 390 deletions
diff --git a/vendor/gopkg.in/yaml.v2/encode.go b/vendor/gopkg.in/yaml.v2/encode.go
deleted file mode 100644
index 0ee738e..0000000
--- a/vendor/gopkg.in/yaml.v2/encode.go
+++ /dev/null
@@ -1,390 +0,0 @@
-package yaml
-
-import (
- "encoding"
- "fmt"
- "io"
- "reflect"
- "regexp"
- "sort"
- "strconv"
- "strings"
- "time"
- "unicode/utf8"
-)
-
-// jsonNumber is the interface of the encoding/json.Number datatype.
-// Repeating the interface here avoids a dependency on encoding/json, and also
-// supports other libraries like jsoniter, which use a similar datatype with
-// the same interface. Detecting this interface is useful when dealing with
-// structures containing json.Number, which is a string under the hood. The
-// encoder should prefer the use of Int64(), Float64() and string(), in that
-// order, when encoding this type.
-type jsonNumber interface {
- Float64() (float64, error)
- Int64() (int64, error)
- String() string
-}
-
-type encoder struct {
- emitter yaml_emitter_t
- event yaml_event_t
- out []byte
- flow bool
- // doneInit holds whether the initial stream_start_event has been
- // emitted.
- doneInit bool
-}
-
-func newEncoder() *encoder {
- e := &encoder{}
- yaml_emitter_initialize(&e.emitter)
- yaml_emitter_set_output_string(&e.emitter, &e.out)
- yaml_emitter_set_unicode(&e.emitter, true)
- return e
-}
-
-func newEncoderWithWriter(w io.Writer) *encoder {
- e := &encoder{}
- yaml_emitter_initialize(&e.emitter)
- yaml_emitter_set_output_writer(&e.emitter, w)
- yaml_emitter_set_unicode(&e.emitter, true)
- return e
-}
-
-func (e *encoder) init() {
- if e.doneInit {
- return
- }
- yaml_stream_start_event_initialize(&e.event, yaml_UTF8_ENCODING)
- e.emit()
- e.doneInit = true
-}
-
-func (e *encoder) finish() {
- e.emitter.open_ended = false
- yaml_stream_end_event_initialize(&e.event)
- e.emit()
-}
-
-func (e *encoder) destroy() {
- yaml_emitter_delete(&e.emitter)
-}
-
-func (e *encoder) emit() {
- // This will internally delete the e.event value.
- e.must(yaml_emitter_emit(&e.emitter, &e.event))
-}
-
-func (e *encoder) must(ok bool) {
- if !ok {
- msg := e.emitter.problem
- if msg == "" {
- msg = "unknown problem generating YAML content"
- }
- failf("%s", msg)
- }
-}
-
-func (e *encoder) marshalDoc(tag string, in reflect.Value) {
- e.init()
- yaml_document_start_event_initialize(&e.event, nil, nil, true)
- e.emit()
- e.marshal(tag, in)
- yaml_document_end_event_initialize(&e.event, true)
- e.emit()
-}
-
-func (e *encoder) marshal(tag string, in reflect.Value) {
- if !in.IsValid() || in.Kind() == reflect.Ptr && in.IsNil() {
- e.nilv()
- return
- }
- iface := in.Interface()
- switch m := iface.(type) {
- case jsonNumber:
- integer, err := m.Int64()
- if err == nil {
- // In this case the json.Number is a valid int64
- in = reflect.ValueOf(integer)
- break
- }
- float, err := m.Float64()
- if err == nil {
- // In this case the json.Number is a valid float64
- in = reflect.ValueOf(float)
- break
- }
- // fallback case - no number could be obtained
- in = reflect.ValueOf(m.String())
- case time.Time, *time.Time:
- // Although time.Time implements TextMarshaler,
- // we don't want to treat it as a string for YAML
- // purposes because YAML has special support for
- // timestamps.
- case Marshaler:
- v, err := m.MarshalYAML()
- if err != nil {
- fail(err)
- }
- if v == nil {
- e.nilv()
- return
- }
- in = reflect.ValueOf(v)
- case encoding.TextMarshaler:
- text, err := m.MarshalText()
- if err != nil {
- fail(err)
- }
- in = reflect.ValueOf(string(text))
- case nil:
- e.nilv()
- return
- }
- switch in.Kind() {
- case reflect.Interface:
- e.marshal(tag, in.Elem())
- case reflect.Map:
- e.mapv(tag, in)
- case reflect.Ptr:
- if in.Type() == ptrTimeType {
- e.timev(tag, in.Elem())
- } else {
- e.marshal(tag, in.Elem())
- }
- case reflect.Struct:
- if in.Type() == timeType {
- e.timev(tag, in)
- } else {
- e.structv(tag, in)
- }
- case reflect.Slice, reflect.Array:
- if in.Type().Elem() == mapItemType {
- e.itemsv(tag, in)
- } else {
- e.slicev(tag, in)
- }
- case reflect.String:
- e.stringv(tag, in)
- case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
- if in.Type() == durationType {
- e.stringv(tag, reflect.ValueOf(iface.(time.Duration).String()))
- } else {
- e.intv(tag, in)
- }
- case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
- e.uintv(tag, in)
- case reflect.Float32, reflect.Float64:
- e.floatv(tag, in)
- case reflect.Bool:
- e.boolv(tag, in)
- default:
- panic("cannot marshal type: " + in.Type().String())
- }
-}
-
-func (e *encoder) mapv(tag string, in reflect.Value) {
- e.mappingv(tag, func() {
- keys := keyList(in.MapKeys())
- sort.Sort(keys)
- for _, k := range keys {
- e.marshal("", k)
- e.marshal("", in.MapIndex(k))
- }
- })
-}
-
-func (e *encoder) itemsv(tag string, in reflect.Value) {
- e.mappingv(tag, func() {
- slice := in.Convert(reflect.TypeOf([]MapItem{})).Interface().([]MapItem)
- for _, item := range slice {
- e.marshal("", reflect.ValueOf(item.Key))
- e.marshal("", reflect.ValueOf(item.Value))
- }
- })
-}
-
-func (e *encoder) structv(tag string, in reflect.Value) {
- sinfo, err := getStructInfo(in.Type())
- if err != nil {
- panic(err)
- }
- e.mappingv(tag, func() {
- for _, info := range sinfo.FieldsList {
- var value reflect.Value
- if info.Inline == nil {
- value = in.Field(info.Num)
- } else {
- value = in.FieldByIndex(info.Inline)
- }
- if info.OmitEmpty && isZero(value) {
- continue
- }
- e.marshal("", reflect.ValueOf(info.Key))
- e.flow = info.Flow
- e.marshal("", value)
- }
- if sinfo.InlineMap >= 0 {
- m := in.Field(sinfo.InlineMap)
- if m.Len() > 0 {
- e.flow = false
- keys := keyList(m.MapKeys())
- sort.Sort(keys)
- for _, k := range keys {
- if _, found := sinfo.FieldsMap[k.String()]; found {
- panic(fmt.Sprintf("Can't have key %q in inlined map; conflicts with struct field", k.String()))
- }
- e.marshal("", k)
- e.flow = false
- e.marshal("", m.MapIndex(k))
- }
- }
- }
- })
-}
-
-func (e *encoder) mappingv(tag string, f func()) {
- implicit := tag == ""
- style := yaml_BLOCK_MAPPING_STYLE
- if e.flow {
- e.flow = false
- style = yaml_FLOW_MAPPING_STYLE
- }
- yaml_mapping_start_event_initialize(&e.event, nil, []byte(tag), implicit, style)
- e.emit()
- f()
- yaml_mapping_end_event_initialize(&e.event)
- e.emit()
-}
-
-func (e *encoder) slicev(tag string, in reflect.Value) {
- implicit := tag == ""
- style := yaml_BLOCK_SEQUENCE_STYLE
- if e.flow {
- e.flow = false
- style = yaml_FLOW_SEQUENCE_STYLE
- }
- e.must(yaml_sequence_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
- e.emit()
- n := in.Len()
- for i := 0; i < n; i++ {
- e.marshal("", in.Index(i))
- }
- e.must(yaml_sequence_end_event_initialize(&e.event))
- e.emit()
-}
-
-// isBase60 returns whether s is in base 60 notation as defined in YAML 1.1.
-//
-// The base 60 float notation in YAML 1.1 is a terrible idea and is unsupported
-// in YAML 1.2 and by this package, but these should be marshalled quoted for
-// the time being for compatibility with other parsers.
-func isBase60Float(s string) (result bool) {
- // Fast path.
- if s == "" {
- return false
- }
- c := s[0]
- if !(c == '+' || c == '-' || c >= '0' && c <= '9') || strings.IndexByte(s, ':') < 0 {
- return false
- }
- // Do the full match.
- return base60float.MatchString(s)
-}
-
-// From http://yaml.org/type/float.html, except the regular expression there
-// is bogus. In practice parsers do not enforce the "\.[0-9_]*" suffix.
-var base60float = regexp.MustCompile(`^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+(?:\.[0-9_]*)?$`)
-
-func (e *encoder) stringv(tag string, in reflect.Value) {
- var style yaml_scalar_style_t
- s := in.String()
- canUsePlain := true
- switch {
- case !utf8.ValidString(s):
- if tag == yaml_BINARY_TAG {
- failf("explicitly tagged !!binary data must be base64-encoded")
- }
- if tag != "" {
- failf("cannot marshal invalid UTF-8 data as %s", shortTag(tag))
- }
- // It can't be encoded directly as YAML so use a binary tag
- // and encode it as base64.
- tag = yaml_BINARY_TAG
- s = encodeBase64(s)
- case tag == "":
- // Check to see if it would resolve to a specific
- // tag when encoded unquoted. If it doesn't,
- // there's no need to quote it.
- rtag, _ := resolve("", s)
- canUsePlain = rtag == yaml_STR_TAG && !isBase60Float(s)
- }
- // Note: it's possible for user code to emit invalid YAML
- // if they explicitly specify a tag and a string containing
- // text that's incompatible with that tag.
- switch {
- case strings.Contains(s, "\n"):
- style = yaml_LITERAL_SCALAR_STYLE
- case canUsePlain:
- style = yaml_PLAIN_SCALAR_STYLE
- default:
- style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
- }
- e.emitScalar(s, "", tag, style)
-}
-
-func (e *encoder) boolv(tag string, in reflect.Value) {
- var s string
- if in.Bool() {
- s = "true"
- } else {
- s = "false"
- }
- e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) intv(tag string, in reflect.Value) {
- s := strconv.FormatInt(in.Int(), 10)
- e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) uintv(tag string, in reflect.Value) {
- s := strconv.FormatUint(in.Uint(), 10)
- e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) timev(tag string, in reflect.Value) {
- t := in.Interface().(time.Time)
- s := t.Format(time.RFC3339Nano)
- e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) floatv(tag string, in reflect.Value) {
- // Issue #352: When formatting, use the precision of the underlying value
- precision := 64
- if in.Kind() == reflect.Float32 {
- precision = 32
- }
-
- s := strconv.FormatFloat(in.Float(), 'g', -1, precision)
- switch s {
- case "+Inf":
- s = ".inf"
- case "-Inf":
- s = "-.inf"
- case "NaN":
- s = ".nan"
- }
- e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) nilv() {
- e.emitScalar("null", "", "", yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t) {
- implicit := tag == ""
- e.must(yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(tag), []byte(value), implicit, implicit, style))
- e.emit()
-}