Use mattermost v5 module (#1192)

1 files changed, 407 insertions, 0 deletions

diff --git a/vendor/github.com/francoispqt/gojay/decode_object.go b/vendor/github.com/francoispqt/gojay/decode_object.go
new file mode 100644
index 00000000..0fec9d24
--- /dev/null
+++ b/vendor/github.com/francoispqt/gojay/decode_object.go
@@ -0,0 +1,407 @@
+package gojay
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+// DecodeObject reads the next JSON-encoded value from the decoder's input (io.Reader) and stores it in the value pointed to by v.
+//
+// v must implement UnmarshalerJSONObject.
+//
+// See the documentation for Unmarshal for details about the conversion of JSON into a Go value.
+func (dec *Decoder) DecodeObject(j UnmarshalerJSONObject) error {
+	if dec.isPooled == 1 {
+		panic(InvalidUsagePooledDecoderError("Invalid usage of pooled decoder"))
+	}
+	_, err := dec.decodeObject(j)
+	return err
+}
+func (dec *Decoder) decodeObject(j UnmarshalerJSONObject) (int, error) {
+	keys := j.NKeys()
+	for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
+		switch dec.data[dec.cursor] {
+		case ' ', '\n', '\t', '\r', ',':
+		case '{':
+			dec.cursor = dec.cursor + 1
+			// if keys is zero we will parse all keys
+			// we run two loops for micro optimization
+			if keys == 0 {
+				for dec.cursor < dec.length || dec.read() {
+					k, done, err := dec.nextKey()
+					if err != nil {
+						return 0, err
+					} else if done {
+						return dec.cursor, nil
+					}
+					err = j.UnmarshalJSONObject(dec, k)
+					if err != nil {
+						dec.err = err
+						return 0, err
+					} else if dec.called&1 == 0 {
+						err := dec.skipData()
+						if err != nil {
+							return 0, err
+						}
+					} else {
+						dec.keysDone++
+					}
+					dec.called &= 0
+				}
+			} else {
+				for (dec.cursor < dec.length || dec.read()) && dec.keysDone < keys {
+					k, done, err := dec.nextKey()
+					if err != nil {
+						return 0, err
+					} else if done {
+						return dec.cursor, nil
+					}
+					err = j.UnmarshalJSONObject(dec, k)
+					if err != nil {
+						dec.err = err
+						return 0, err
+					} else if dec.called&1 == 0 {
+						err := dec.skipData()
+						if err != nil {
+							return 0, err
+						}
+					} else {
+						dec.keysDone++
+					}
+					dec.called &= 0
+				}
+			}
+			// will get to that point when keysDone is not lower than keys anymore
+			// in that case, we make sure cursor goes to the end of object, but we skip
+			// unmarshalling
+			if dec.child&1 != 0 {
+				end, err := dec.skipObject()
+				dec.cursor = end
+				return dec.cursor, err
+			}
+			return dec.cursor, nil
+		case 'n':
+			dec.cursor++
+			err := dec.assertNull()
+			if err != nil {
+				return 0, err
+			}
+			return dec.cursor, nil
+		default:
+			// can't unmarshal to struct
+			dec.err = dec.makeInvalidUnmarshalErr(j)
+			err := dec.skipData()
+			if err != nil {
+				return 0, err
+			}
+			return dec.cursor, nil
+		}
+	}
+	return 0, dec.raiseInvalidJSONErr(dec.cursor)
+}
+
+func (dec *Decoder) decodeObjectNull(v interface{}) (int, error) {
+	// make sure the value is a pointer
+	vv := reflect.ValueOf(v)
+	vvt := vv.Type()
+	if vvt.Kind() != reflect.Ptr || vvt.Elem().Kind() != reflect.Ptr {
+		dec.err = ErrUnmarshalPtrExpected
+		return 0, dec.err
+	}
+	for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
+		switch dec.data[dec.cursor] {
+		case ' ', '\n', '\t', '\r', ',':
+		case '{':
+			elt := vv.Elem()
+			n := reflect.New(elt.Type().Elem())
+			elt.Set(n)
+			var j UnmarshalerJSONObject
+			var ok bool
+			if j, ok = n.Interface().(UnmarshalerJSONObject); !ok {
+				dec.err = dec.makeInvalidUnmarshalErr((UnmarshalerJSONObject)(nil))
+				return 0, dec.err
+			}
+			keys := j.NKeys()
+			dec.cursor = dec.cursor + 1
+			// if keys is zero we will parse all keys
+			// we run two loops for micro optimization
+			if keys == 0 {
+				for dec.cursor < dec.length || dec.read() {
+					k, done, err := dec.nextKey()
+					if err != nil {
+						return 0, err
+					} else if done {
+						return dec.cursor, nil
+					}
+					err = j.UnmarshalJSONObject(dec, k)
+					if err != nil {
+						dec.err = err
+						return 0, err
+					} else if dec.called&1 == 0 {
+						err := dec.skipData()
+						if err != nil {
+							return 0, err
+						}
+					} else {
+						dec.keysDone++
+					}
+					dec.called &= 0
+				}
+			} else {
+				for (dec.cursor < dec.length || dec.read()) && dec.keysDone < keys {
+					k, done, err := dec.nextKey()
+					if err != nil {
+						return 0, err
+					} else if done {
+						return dec.cursor, nil
+					}
+					err = j.UnmarshalJSONObject(dec, k)
+					if err != nil {
+						dec.err = err
+						return 0, err
+					} else if dec.called&1 == 0 {
+						err := dec.skipData()
+						if err != nil {
+							return 0, err
+						}
+					} else {
+						dec.keysDone++
+					}
+					dec.called &= 0
+				}
+			}
+			// will get to that point when keysDone is not lower than keys anymore
+			// in that case, we make sure cursor goes to the end of object, but we skip
+			// unmarshalling
+			if dec.child&1 != 0 {
+				end, err := dec.skipObject()
+				dec.cursor = end
+				return dec.cursor, err
+			}
+			return dec.cursor, nil
+		case 'n':
+			dec.cursor++
+			err := dec.assertNull()
+			if err != nil {
+				return 0, err
+			}
+			return dec.cursor, nil
+		default:
+			// can't unmarshal to struct
+			dec.err = dec.makeInvalidUnmarshalErr((UnmarshalerJSONObject)(nil))
+			err := dec.skipData()
+			if err != nil {
+				return 0, err
+			}
+			return dec.cursor, nil
+		}
+	}
+	return 0, dec.raiseInvalidJSONErr(dec.cursor)
+}
+
+func (dec *Decoder) skipObject() (int, error) {
+	var objectsOpen = 1
+	var objectsClosed = 0
+	for j := dec.cursor; j < dec.length || dec.read(); j++ {
+		switch dec.data[j] {
+		case '}':
+			objectsClosed++
+			// everything is closed return
+			if objectsOpen == objectsClosed {
+				// add char to object data
+				return j + 1, nil
+			}
+		case '{':
+			objectsOpen++
+		case '"':
+			j++
+			var isInEscapeSeq bool
+			var isFirstQuote = true
+			for ; j < dec.length || dec.read(); j++ {
+				if dec.data[j] != '"' {
+					continue
+				}
+				if dec.data[j-1] != '\\' || (!isInEscapeSeq && !isFirstQuote) {
+					break
+				} else {
+					isInEscapeSeq = false
+				}
+				if isFirstQuote {
+					isFirstQuote = false
+				}
+				// loop backward and count how many anti slash found
+				// to see if string is effectively escaped
+				ct := 0
+				for i := j - 1; i > 0; i-- {
+					if dec.data[i] != '\\' {
+						break
+					}
+					ct++
+				}
+				// is pair number of slashes, quote is not escaped
+				if ct&1 == 0 {
+					break
+				}
+				isInEscapeSeq = true
+			}
+		default:
+			continue
+		}
+	}
+	return 0, dec.raiseInvalidJSONErr(dec.cursor)
+}
+
+func (dec *Decoder) nextKey() (string, bool, error) {
+	for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
+		switch dec.data[dec.cursor] {
+		case ' ', '\n', '\t', '\r', ',':
+			continue
+		case '"':
+			dec.cursor = dec.cursor + 1
+			start, end, err := dec.getString()
+			if err != nil {
+				return "", false, err
+			}
+			var found byte
+			for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
+				if dec.data[dec.cursor] == ':' {
+					found |= 1
+					break
+				}
+			}
+			if found&1 != 0 {
+				dec.cursor++
+				d := dec.data[start : end-1]
+				return *(*string)(unsafe.Pointer(&d)), false, nil
+			}
+			return "", false, dec.raiseInvalidJSONErr(dec.cursor)
+		case '}':
+			dec.cursor = dec.cursor + 1
+			return "", true, nil
+		default:
+			// can't unmarshall to struct
+			return "", false, dec.raiseInvalidJSONErr(dec.cursor)
+		}
+	}
+	return "", false, dec.raiseInvalidJSONErr(dec.cursor)
+}
+
+func (dec *Decoder) skipData() error {
+	for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
+		switch dec.data[dec.cursor] {
+		case ' ', '\n', '\t', '\r', ',':
+			continue
+		// is null
+		case 'n':
+			dec.cursor++
+			err := dec.assertNull()
+			if err != nil {
+				return err
+			}
+			return nil
+		case 't':
+			dec.cursor++
+			err := dec.assertTrue()
+			if err != nil {
+				return err
+			}
+			return nil
+		// is false
+		case 'f':
+			dec.cursor++
+			err := dec.assertFalse()
+			if err != nil {
+				return err
+			}
+			return nil
+		// is an object
+		case '{':
+			dec.cursor = dec.cursor + 1
+			end, err := dec.skipObject()
+			dec.cursor = end
+			return err
+		// is string
+		case '"':
+			dec.cursor = dec.cursor + 1
+			err := dec.skipString()
+			return err
+		// is array
+		case '[':
+			dec.cursor = dec.cursor + 1
+			end, err := dec.skipArray()
+			dec.cursor = end
+			return err
+		case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-':
+			end, err := dec.skipNumber()
+			dec.cursor = end
+			return err
+		}
+		return dec.raiseInvalidJSONErr(dec.cursor)
+	}
+	return dec.raiseInvalidJSONErr(dec.cursor)
+}
+
+// DecodeObjectFunc is a func type implementing UnmarshalerJSONObject.
+// Use it to cast a `func(*Decoder, k string) error` to Unmarshal an object on the fly.
+type DecodeObjectFunc func(*Decoder, string) error
+
+// UnmarshalJSONObject implements UnmarshalerJSONObject.
+func (f DecodeObjectFunc) UnmarshalJSONObject(dec *Decoder, k string) error {
+	return f(dec, k)
+}
+
+// NKeys implements UnmarshalerJSONObject.
+func (f DecodeObjectFunc) NKeys() int {
+	return 0
+}
+
+// Add Values functions
+
+// AddObject decodes the JSON value within an object or an array to a UnmarshalerJSONObject.
+func (dec *Decoder) AddObject(v UnmarshalerJSONObject) error {
+	return dec.Object(v)
+}
+
+// AddObjectNull decodes the JSON value within an object or an array to a UnmarshalerJSONObject.
+func (dec *Decoder) AddObjectNull(v interface{}) error {
+	return dec.ObjectNull(v)
+}
+
+// Object decodes the JSON value within an object or an array to a UnmarshalerJSONObject.
+func (dec *Decoder) Object(value UnmarshalerJSONObject) error {
+	initialKeysDone := dec.keysDone
+	initialChild := dec.child
+	dec.keysDone = 0
+	dec.called = 0
+	dec.child |= 1
+	newCursor, err := dec.decodeObject(value)
+	if err != nil {
+		return err
+	}
+	dec.cursor = newCursor
+	dec.keysDone = initialKeysDone
+	dec.child = initialChild
+	dec.called |= 1
+	return nil
+}
+
+// ObjectNull decodes the JSON value within an object or an array to a UnmarshalerJSONObject.
+// v should be a pointer to an UnmarshalerJSONObject,
+// if `null` value is encountered in JSON, it will leave the value v untouched,
+// else it will create a new instance of the UnmarshalerJSONObject behind v.
+func (dec *Decoder) ObjectNull(v interface{}) error {
+	initialKeysDone := dec.keysDone
+	initialChild := dec.child
+	dec.keysDone = 0
+	dec.called = 0
+	dec.child |= 1
+	newCursor, err := dec.decodeObjectNull(v)
+	if err != nil {
+		return err
+	}
+	dec.cursor = newCursor
+	dec.keysDone = initialKeysDone
+	dec.child = initialChild
+	dec.called |= 1
+	return nil
+}