1 files changed, 260 insertions, 0 deletions
diff --git a/vendor/github.com/francoispqt/gojay/decode_string.go b/vendor/github.com/francoispqt/gojay/decode_string.go
new file mode 100644
index 00000000..694359c7
--- /dev/null
+++ b/vendor/github.com/francoispqt/gojay/decode_string.go
@@ -0,0 +1,260 @@
+package gojay
+
+import (
+	"unsafe"
+)
+
+// DecodeString reads the next JSON-encoded value from the decoder's input (io.Reader) and stores it in the string pointed to by v.
+//
+// See the documentation for Unmarshal for details about the conversion of JSON into a Go value.
+func (dec *Decoder) DecodeString(v *string) error {
+	if dec.isPooled == 1 {
+		panic(InvalidUsagePooledDecoderError("Invalid usage of pooled decoder"))
+	}
+	return dec.decodeString(v)
+}
+func (dec *Decoder) decodeString(v *string) error {
+	for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
+		switch dec.data[dec.cursor] {
+		case ' ', '\n', '\t', '\r', ',':
+			// is string
+			continue
+		case '"':
+			dec.cursor++
+			start, end, err := dec.getString()
+			if err != nil {
+				return err
+			}
+			// we do minus one to remove the last quote
+			d := dec.data[start : end-1]
+			*v = *(*string)(unsafe.Pointer(&d))
+			dec.cursor = end
+			return nil
+		// is nil
+		case 'n':
+			dec.cursor++
+			err := dec.assertNull()
+			if err != nil {
+				return err
+			}
+			return nil
+		default:
+			dec.err = dec.makeInvalidUnmarshalErr(v)
+			err := dec.skipData()
+			if err != nil {
+				return err
+			}
+			return nil
+		}
+	}
+	return nil
+}
+
+func (dec *Decoder) decodeStringNull(v **string) error {
+	for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
+		switch dec.data[dec.cursor] {
+		case ' ', '\n', '\t', '\r', ',':
+			// is string
+			continue
+		case '"':
+			dec.cursor++
+			start, end, err := dec.getString()
+
+			if err != nil {
+				return err
+			}
+			if *v == nil {
+				*v = new(string)
+			}
+			// we do minus one to remove the last quote
+			d := dec.data[start : end-1]
+			**v = *(*string)(unsafe.Pointer(&d))
+			dec.cursor = end
+			return nil
+		// is nil
+		case 'n':
+			dec.cursor++
+			err := dec.assertNull()
+			if err != nil {
+				return err
+			}
+			return nil
+		default:
+			dec.err = dec.makeInvalidUnmarshalErr(v)
+			err := dec.skipData()
+			if err != nil {
+				return err
+			}
+			return nil
+		}
+	}
+	return nil
+}
+
+func (dec *Decoder) parseEscapedString() error {
+	if dec.cursor >= dec.length && !dec.read() {
+		return dec.raiseInvalidJSONErr(dec.cursor)
+	}
+	switch dec.data[dec.cursor] {
+	case '"':
+		dec.data[dec.cursor] = '"'
+	case '\\':
+		dec.data[dec.cursor] = '\\'
+	case '/':
+		dec.data[dec.cursor] = '/'
+	case 'b':
+		dec.data[dec.cursor] = '\b'
+	case 'f':
+		dec.data[dec.cursor] = '\f'
+	case 'n':
+		dec.data[dec.cursor] = '\n'
+	case 'r':
+		dec.data[dec.cursor] = '\r'
+	case 't':
+		dec.data[dec.cursor] = '\t'
+	case 'u':
+		start := dec.cursor
+		dec.cursor++
+		str, err := dec.parseUnicode()
+		if err != nil {
+			return err
+		}
+		diff := dec.cursor - start
+		dec.data = append(append(dec.data[:start-1], str...), dec.data[dec.cursor:]...)
+		dec.length = len(dec.data)
+		dec.cursor += len(str) - diff - 1
+
+		return nil
+	default:
+		return dec.raiseInvalidJSONErr(dec.cursor)
+	}
+
+	dec.data = append(dec.data[:dec.cursor-1], dec.data[dec.cursor:]...)
+	dec.length--
+
+	// Since we've lost a character, our dec.cursor offset is now
+	// 1 past the escaped character which is precisely where we
+	// want it.
+
+	return nil
+}
+
+func (dec *Decoder) getString() (int, int, error) {
+	// extract key
+	var keyStart = dec.cursor
+	// var str *Builder
+	for dec.cursor < dec.length || dec.read() {
+		switch dec.data[dec.cursor] {
+		// string found
+		case '"':
+			dec.cursor = dec.cursor + 1
+			return keyStart, dec.cursor, nil
+		// slash found
+		case '\\':
+			dec.cursor = dec.cursor + 1
+			err := dec.parseEscapedString()
+			if err != nil {
+				return 0, 0, err
+			}
+		default:
+			dec.cursor = dec.cursor + 1
+			continue
+		}
+	}
+	return 0, 0, dec.raiseInvalidJSONErr(dec.cursor)
+}
+
+func (dec *Decoder) skipEscapedString() error {
+	start := dec.cursor
+	for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
+		if dec.data[dec.cursor] != '\\' {
+			d := dec.data[dec.cursor]
+			dec.cursor = dec.cursor + 1
+			nSlash := dec.cursor - start
+			switch d {
+			case '"':
+				// nSlash must be odd
+				if nSlash&1 != 1 {
+					return dec.raiseInvalidJSONErr(dec.cursor)
+				}
+				return nil
+			case 'u': // is unicode, we skip the following characters and place the cursor one one byte backward to avoid it breaking when returning to skipString
+				if err := dec.skipString(); err != nil {
+					return err
+				}
+				dec.cursor--
+				return nil
+			case 'n', 'r', 't', '/', 'f', 'b':
+				return nil
+			default:
+				// nSlash must be even
+				if nSlash&1 == 1 {
+					return dec.raiseInvalidJSONErr(dec.cursor)
+				}
+				return nil
+			}
+		}
+	}
+	return dec.raiseInvalidJSONErr(dec.cursor)
+}
+
+func (dec *Decoder) skipString() error {
+	for dec.cursor < dec.length || dec.read() {
+		switch dec.data[dec.cursor] {
+		// found the closing quote
+		// let's return
+		case '"':
+			dec.cursor = dec.cursor + 1
+			return nil
+		// solidus found start parsing an escaped string
+		case '\\':
+			dec.cursor = dec.cursor + 1
+			err := dec.skipEscapedString()
+			if err != nil {
+				return err
+			}
+		default:
+			dec.cursor = dec.cursor + 1
+			continue
+		}
+	}
+	return dec.raiseInvalidJSONErr(len(dec.data) - 1)
+}
+
+// Add Values functions
+
+// AddString decodes the JSON value within an object or an array to a *string.
+// If next key is not a JSON string nor null, InvalidUnmarshalError will be returned.
+func (dec *Decoder) AddString(v *string) error {
+	return dec.String(v)
+}
+
+// AddStringNull decodes the JSON value within an object or an array to a *string.
+// If next key is not a JSON string nor null, InvalidUnmarshalError will be returned.
+// If a `null` is encountered, gojay does not change the value of the pointer.
+func (dec *Decoder) AddStringNull(v **string) error {
+	return dec.StringNull(v)
+}
+
+// String decodes the JSON value within an object or an array to a *string.
+// If next key is not a JSON string nor null, InvalidUnmarshalError will be returned.
+func (dec *Decoder) String(v *string) error {
+	err := dec.decodeString(v)
+	if err != nil {
+		return err
+	}
+	dec.called |= 1
+	return nil
+}
+
+// StringNull decodes the JSON value within an object or an array to a **string.
+// If next key is not a JSON string nor null, InvalidUnmarshalError will be returned.
+// If a `null` is encountered, gojay does not change the value of the pointer.
+func (dec *Decoder) StringNull(v **string) error {
+	err := dec.decodeStringNull(v)
+	if err != nil {
+		return err
+	}
+	dec.called |= 1
+	return nil
+}