mirror of
https://github.com/42wim/matterbridge.git
synced 2024-12-23 03:32:37 +01:00
517 lines
15 KiB
Go
517 lines
15 KiB
Go
package gojay
|
|
|
|
// DecodeFloat64 reads the next JSON-encoded value from the decoder's input (io.Reader) and stores it in the float64 pointed to by v.
|
|
//
|
|
// See the documentation for Unmarshal for details about the conversion of JSON into a Go value.
|
|
func (dec *Decoder) DecodeFloat64(v *float64) error {
|
|
if dec.isPooled == 1 {
|
|
panic(InvalidUsagePooledDecoderError("Invalid usage of pooled decoder"))
|
|
}
|
|
return dec.decodeFloat64(v)
|
|
}
|
|
func (dec *Decoder) decodeFloat64(v *float64) error {
|
|
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
|
|
switch c := dec.data[dec.cursor]; c {
|
|
case ' ', '\n', '\t', '\r', ',':
|
|
continue
|
|
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
|
val, err := dec.getFloat()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
*v = val
|
|
return nil
|
|
case '-':
|
|
dec.cursor = dec.cursor + 1
|
|
val, err := dec.getFloatNegative()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
*v = -val
|
|
return 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 dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
func (dec *Decoder) decodeFloat64Null(v **float64) error {
|
|
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
|
|
switch c := dec.data[dec.cursor]; c {
|
|
case ' ', '\n', '\t', '\r', ',':
|
|
continue
|
|
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
|
val, err := dec.getFloat()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if *v == nil {
|
|
*v = new(float64)
|
|
}
|
|
**v = val
|
|
return nil
|
|
case '-':
|
|
dec.cursor = dec.cursor + 1
|
|
val, err := dec.getFloatNegative()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if *v == nil {
|
|
*v = new(float64)
|
|
}
|
|
**v = -val
|
|
return 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 dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
|
|
func (dec *Decoder) getFloatNegative() (float64, error) {
|
|
// look for following numbers
|
|
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
|
|
switch dec.data[dec.cursor] {
|
|
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
|
return dec.getFloat()
|
|
default:
|
|
return 0, dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
}
|
|
return 0, dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
|
|
func (dec *Decoder) getFloat() (float64, error) {
|
|
var end = dec.cursor
|
|
var start = dec.cursor
|
|
// look for following numbers
|
|
for j := dec.cursor + 1; j < dec.length || dec.read(); j++ {
|
|
switch dec.data[j] {
|
|
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
|
end = j
|
|
continue
|
|
case '.':
|
|
// we get part before decimal as integer
|
|
beforeDecimal := dec.atoi64(start, end)
|
|
// then we get part after decimal as integer
|
|
start = j + 1
|
|
// get number after the decimal point
|
|
for i := j + 1; i < dec.length || dec.read(); i++ {
|
|
c := dec.data[i]
|
|
if isDigit(c) {
|
|
end = i
|
|
// multiply the before decimal point portion by 10 using bitwise
|
|
// make sure it doesn't overflow
|
|
if end-start < 18 {
|
|
beforeDecimal = (beforeDecimal << 3) + (beforeDecimal << 1)
|
|
}
|
|
continue
|
|
} else if (c == 'e' || c == 'E') && j < i-1 {
|
|
// we have an exponent, convert first the value we got before the exponent
|
|
var afterDecimal int64
|
|
expI := end - start + 2
|
|
// if exp is too long, it means number is too long, just truncate the number
|
|
if expI >= len(pow10uint64) || expI < 0 {
|
|
expI = len(pow10uint64) - 2
|
|
afterDecimal = dec.atoi64(start, start+expI-2)
|
|
} else {
|
|
// then we add both integers
|
|
// then we divide the number by the power found
|
|
afterDecimal = dec.atoi64(start, end)
|
|
}
|
|
dec.cursor = i + 1
|
|
pow := pow10uint64[expI]
|
|
floatVal := float64(beforeDecimal+afterDecimal) / float64(pow)
|
|
exp, err := dec.getExponent()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
pExp := (exp + (exp >> 31)) ^ (exp >> 31) + 1 // absolute exponent
|
|
if pExp >= int64(len(pow10uint64)) || pExp < 0 {
|
|
return 0, dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
// if exponent is negative
|
|
if exp < 0 {
|
|
return float64(floatVal) * (1 / float64(pow10uint64[pExp])), nil
|
|
}
|
|
return float64(floatVal) * float64(pow10uint64[pExp]), nil
|
|
}
|
|
dec.cursor = i
|
|
break
|
|
}
|
|
if end >= dec.length || end < start {
|
|
return 0, dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
var afterDecimal int64
|
|
expI := end - start + 2
|
|
// if exp is too long, it means number is too long, just truncate the number
|
|
if expI >= len(pow10uint64) || expI < 0 {
|
|
expI = 19
|
|
afterDecimal = dec.atoi64(start, start+expI-2)
|
|
} else {
|
|
afterDecimal = dec.atoi64(start, end)
|
|
}
|
|
|
|
pow := pow10uint64[expI]
|
|
// then we add both integers
|
|
// then we divide the number by the power found
|
|
return float64(beforeDecimal+afterDecimal) / float64(pow), nil
|
|
case 'e', 'E':
|
|
dec.cursor = j + 1
|
|
// we get part before decimal as integer
|
|
beforeDecimal := uint64(dec.atoi64(start, end))
|
|
// get exponent
|
|
exp, err := dec.getExponent()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
pExp := (exp + (exp >> 31)) ^ (exp >> 31) + 1 // abs
|
|
if pExp >= int64(len(pow10uint64)) || pExp < 0 {
|
|
return 0, dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
// if exponent is negative
|
|
if exp < 0 {
|
|
return float64(beforeDecimal) * (1 / float64(pow10uint64[pExp])), nil
|
|
}
|
|
return float64(beforeDecimal) * float64(pow10uint64[pExp]), nil
|
|
case ' ', '\n', '\t', '\r', ',', '}', ']': // does not have decimal
|
|
dec.cursor = j
|
|
return float64(dec.atoi64(start, end)), nil
|
|
}
|
|
// invalid json we expect numbers, dot (single one), comma, or spaces
|
|
return 0, dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
return float64(dec.atoi64(start, end)), nil
|
|
}
|
|
|
|
// DecodeFloat32 reads the next JSON-encoded value from the decoder's input (io.Reader) and stores it in the float32 pointed to by v.
|
|
//
|
|
// See the documentation for Unmarshal for details about the conversion of JSON into a Go value.
|
|
func (dec *Decoder) DecodeFloat32(v *float32) error {
|
|
if dec.isPooled == 1 {
|
|
panic(InvalidUsagePooledDecoderError("Invalid usage of pooled decoder"))
|
|
}
|
|
return dec.decodeFloat32(v)
|
|
}
|
|
func (dec *Decoder) decodeFloat32(v *float32) error {
|
|
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
|
|
switch c := dec.data[dec.cursor]; c {
|
|
case ' ', '\n', '\t', '\r', ',':
|
|
continue
|
|
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
|
val, err := dec.getFloat32()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
*v = val
|
|
return nil
|
|
case '-':
|
|
dec.cursor = dec.cursor + 1
|
|
val, err := dec.getFloat32Negative()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
*v = -val
|
|
return 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 dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
func (dec *Decoder) decodeFloat32Null(v **float32) error {
|
|
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
|
|
switch c := dec.data[dec.cursor]; c {
|
|
case ' ', '\n', '\t', '\r', ',':
|
|
continue
|
|
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
|
val, err := dec.getFloat32()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if *v == nil {
|
|
*v = new(float32)
|
|
}
|
|
**v = val
|
|
return nil
|
|
case '-':
|
|
dec.cursor = dec.cursor + 1
|
|
val, err := dec.getFloat32Negative()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if *v == nil {
|
|
*v = new(float32)
|
|
}
|
|
**v = -val
|
|
return 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 dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
|
|
func (dec *Decoder) getFloat32Negative() (float32, error) {
|
|
// look for following numbers
|
|
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
|
|
switch dec.data[dec.cursor] {
|
|
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
|
return dec.getFloat32()
|
|
default:
|
|
return 0, dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
}
|
|
return 0, dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
|
|
func (dec *Decoder) getFloat32() (float32, error) {
|
|
var end = dec.cursor
|
|
var start = dec.cursor
|
|
// look for following numbers
|
|
for j := dec.cursor + 1; j < dec.length || dec.read(); j++ {
|
|
switch dec.data[j] {
|
|
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
|
end = j
|
|
continue
|
|
case '.':
|
|
// we get part before decimal as integer
|
|
beforeDecimal := dec.atoi64(start, end)
|
|
// then we get part after decimal as integer
|
|
start = j + 1
|
|
// get number after the decimal point
|
|
// multiple the before decimal point portion by 10 using bitwise
|
|
for i := j + 1; i < dec.length || dec.read(); i++ {
|
|
c := dec.data[i]
|
|
if isDigit(c) {
|
|
end = i
|
|
// multiply the before decimal point portion by 10 using bitwise
|
|
// make sure it desn't overflow
|
|
if end-start < 9 {
|
|
beforeDecimal = (beforeDecimal << 3) + (beforeDecimal << 1)
|
|
}
|
|
continue
|
|
} else if (c == 'e' || c == 'E') && j < i-1 {
|
|
// we get the number before decimal
|
|
var afterDecimal int64
|
|
expI := end - start + 2
|
|
// if exp is too long, it means number is too long, just truncate the number
|
|
if expI >= 12 || expI < 0 {
|
|
expI = 10
|
|
afterDecimal = dec.atoi64(start, start+expI-2)
|
|
} else {
|
|
afterDecimal = dec.atoi64(start, end)
|
|
}
|
|
dec.cursor = i + 1
|
|
pow := pow10uint64[expI]
|
|
// then we add both integers
|
|
// then we divide the number by the power found
|
|
floatVal := float32(beforeDecimal+afterDecimal) / float32(pow)
|
|
exp, err := dec.getExponent()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
pExp := (exp + (exp >> 31)) ^ (exp >> 31) + 1 // abs
|
|
if pExp >= int64(len(pow10uint64)) || pExp < 0 {
|
|
return 0, dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
// if exponent is negative
|
|
if exp < 0 {
|
|
return float32(floatVal) * (1 / float32(pow10uint64[pExp])), nil
|
|
}
|
|
return float32(floatVal) * float32(pow10uint64[pExp]), nil
|
|
}
|
|
dec.cursor = i
|
|
break
|
|
}
|
|
if end >= dec.length || end < start {
|
|
return 0, dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
// then we add both integers
|
|
// then we divide the number by the power found
|
|
var afterDecimal int64
|
|
expI := end - start + 2
|
|
// if exp is too long, it means number is too long, just truncate the number
|
|
if expI >= 12 || expI < 0 {
|
|
expI = 10
|
|
afterDecimal = dec.atoi64(start, start+expI-2)
|
|
} else {
|
|
// then we add both integers
|
|
// then we divide the number by the power found
|
|
afterDecimal = dec.atoi64(start, end)
|
|
}
|
|
pow := pow10uint64[expI]
|
|
return float32(beforeDecimal+afterDecimal) / float32(pow), nil
|
|
case 'e', 'E':
|
|
dec.cursor = j + 1
|
|
// we get part before decimal as integer
|
|
beforeDecimal := dec.atoi64(start, end)
|
|
// get exponent
|
|
exp, err := dec.getExponent()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
pExp := (exp + (exp >> 31)) ^ (exp >> 31) + 1
|
|
if pExp >= int64(len(pow10uint64)) || pExp < 0 {
|
|
return 0, dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
// if exponent is negative
|
|
if exp < 0 {
|
|
return float32(beforeDecimal) * (1 / float32(pow10uint64[pExp])), nil
|
|
}
|
|
return float32(beforeDecimal) * float32(pow10uint64[pExp]), nil
|
|
case ' ', '\n', '\t', '\r', ',', '}', ']': // does not have decimal
|
|
dec.cursor = j
|
|
return float32(dec.atoi64(start, end)), nil
|
|
}
|
|
// invalid json we expect numbers, dot (single one), comma, or spaces
|
|
return 0, dec.raiseInvalidJSONErr(dec.cursor)
|
|
}
|
|
return float32(dec.atoi64(start, end)), nil
|
|
}
|
|
|
|
// Add Values functions
|
|
|
|
// AddFloat decodes the JSON value within an object or an array to a *float64.
|
|
// If next key value overflows float64, an InvalidUnmarshalError error will be returned.
|
|
func (dec *Decoder) AddFloat(v *float64) error {
|
|
return dec.Float64(v)
|
|
}
|
|
|
|
// AddFloatNull decodes the JSON value within an object or an array to a *float64.
|
|
// If next key value overflows float64, an InvalidUnmarshalError error will be returned.
|
|
// If a `null` is encountered, gojay does not change the value of the pointer.
|
|
func (dec *Decoder) AddFloatNull(v **float64) error {
|
|
return dec.Float64Null(v)
|
|
}
|
|
|
|
// AddFloat64 decodes the JSON value within an object or an array to a *float64.
|
|
// If next key value overflows float64, an InvalidUnmarshalError error will be returned.
|
|
func (dec *Decoder) AddFloat64(v *float64) error {
|
|
return dec.Float64(v)
|
|
}
|
|
|
|
// AddFloat64Null decodes the JSON value within an object or an array to a *float64.
|
|
// If next key value overflows float64, an InvalidUnmarshalError error will be returned.
|
|
// If a `null` is encountered, gojay does not change the value of the pointer.
|
|
func (dec *Decoder) AddFloat64Null(v **float64) error {
|
|
return dec.Float64Null(v)
|
|
}
|
|
|
|
// AddFloat32 decodes the JSON value within an object or an array to a *float64.
|
|
// If next key value overflows float64, an InvalidUnmarshalError error will be returned.
|
|
func (dec *Decoder) AddFloat32(v *float32) error {
|
|
return dec.Float32(v)
|
|
}
|
|
|
|
// AddFloat32Null decodes the JSON value within an object or an array to a *float64.
|
|
// If next key value overflows float64, an InvalidUnmarshalError error will be returned.
|
|
// If a `null` is encountered, gojay does not change the value of the pointer.
|
|
func (dec *Decoder) AddFloat32Null(v **float32) error {
|
|
return dec.Float32Null(v)
|
|
}
|
|
|
|
// Float decodes the JSON value within an object or an array to a *float64.
|
|
// If next key value overflows float64, an InvalidUnmarshalError error will be returned.
|
|
func (dec *Decoder) Float(v *float64) error {
|
|
return dec.Float64(v)
|
|
}
|
|
|
|
// FloatNull decodes the JSON value within an object or an array to a *float64.
|
|
// If next key value overflows float64, an InvalidUnmarshalError error will be returned.
|
|
func (dec *Decoder) FloatNull(v **float64) error {
|
|
return dec.Float64Null(v)
|
|
}
|
|
|
|
// Float64 decodes the JSON value within an object or an array to a *float64.
|
|
// If next key value overflows float64, an InvalidUnmarshalError error will be returned.
|
|
func (dec *Decoder) Float64(v *float64) error {
|
|
err := dec.decodeFloat64(v)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
dec.called |= 1
|
|
return nil
|
|
}
|
|
|
|
// Float64Null decodes the JSON value within an object or an array to a *float64.
|
|
// If next key value overflows float64, an InvalidUnmarshalError error will be returned.
|
|
func (dec *Decoder) Float64Null(v **float64) error {
|
|
err := dec.decodeFloat64Null(v)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
dec.called |= 1
|
|
return nil
|
|
}
|
|
|
|
// Float32 decodes the JSON value within an object or an array to a *float64.
|
|
// If next key value overflows float64, an InvalidUnmarshalError error will be returned.
|
|
func (dec *Decoder) Float32(v *float32) error {
|
|
err := dec.decodeFloat32(v)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
dec.called |= 1
|
|
return nil
|
|
}
|
|
|
|
// Float32Null decodes the JSON value within an object or an array to a *float64.
|
|
// If next key value overflows float64, an InvalidUnmarshalError error will be returned.
|
|
func (dec *Decoder) Float32Null(v **float32) error {
|
|
err := dec.decodeFloat32Null(v)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
dec.called |= 1
|
|
return nil
|
|
}
|