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matterbridge/vendor/github.com/francoispqt/gojay/decode_embedded_json.go
2020-08-10 00:29:54 +02:00

86 lines
2.1 KiB
Go

package gojay
// EmbeddedJSON is a raw encoded JSON value.
// It can be used to delay JSON decoding or precompute a JSON encoding.
type EmbeddedJSON []byte
func (dec *Decoder) decodeEmbeddedJSON(ej *EmbeddedJSON) error {
var err error
if ej == nil {
return InvalidUnmarshalError("Invalid nil pointer given")
}
var beginOfEmbeddedJSON int
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch dec.data[dec.cursor] {
case ' ', '\n', '\t', '\r', ',':
continue
// is null
case 'n':
beginOfEmbeddedJSON = dec.cursor
dec.cursor++
err := dec.assertNull()
if err != nil {
return err
}
case 't':
beginOfEmbeddedJSON = dec.cursor
dec.cursor++
err := dec.assertTrue()
if err != nil {
return err
}
// is false
case 'f':
beginOfEmbeddedJSON = dec.cursor
dec.cursor++
err := dec.assertFalse()
if err != nil {
return err
}
// is an object
case '{':
beginOfEmbeddedJSON = dec.cursor
dec.cursor = dec.cursor + 1
dec.cursor, err = dec.skipObject()
// is string
case '"':
beginOfEmbeddedJSON = dec.cursor
dec.cursor = dec.cursor + 1
err = dec.skipString() // why no new dec.cursor in result?
// is array
case '[':
beginOfEmbeddedJSON = dec.cursor
dec.cursor = dec.cursor + 1
dec.cursor, err = dec.skipArray()
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-':
beginOfEmbeddedJSON = dec.cursor
dec.cursor, err = dec.skipNumber()
}
break
}
if err == nil {
if dec.cursor-1 >= beginOfEmbeddedJSON {
*ej = append(*ej, dec.data[beginOfEmbeddedJSON:dec.cursor]...)
}
dec.called |= 1
}
return err
}
// AddEmbeddedJSON adds an EmbeddedsJSON to the value pointed by v.
// It can be used to delay JSON decoding or precompute a JSON encoding.
func (dec *Decoder) AddEmbeddedJSON(v *EmbeddedJSON) error {
return dec.EmbeddedJSON(v)
}
// EmbeddedJSON adds an EmbeddedsJSON to the value pointed by v.
// It can be used to delay JSON decoding or precompute a JSON encoding.
func (dec *Decoder) EmbeddedJSON(v *EmbeddedJSON) error {
err := dec.decodeEmbeddedJSON(v)
if err != nil {
return err
}
dec.called |= 1
return nil
}