5
0
mirror of https://github.com/cwinfo/matterbridge.git synced 2024-11-23 04:41:36 +00:00
matterbridge/vendor/github.com/francoispqt/gojay/decode_number_int.go
2020-08-10 00:29:54 +02:00

1339 lines
37 KiB
Go

package gojay
import (
"fmt"
"math"
)
// DecodeInt reads the next JSON-encoded value from the decoder's input (io.Reader) and stores it in the int pointed to by v.
//
// See the documentation for Unmarshal for details about the conversion of JSON into a Go value.
func (dec *Decoder) DecodeInt(v *int) error {
if dec.isPooled == 1 {
panic(InvalidUsagePooledDecoderError("Invalid usage of pooled decoder"))
}
return dec.decodeInt(v)
}
func (dec *Decoder) decodeInt(v *int) error {
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch c := dec.data[dec.cursor]; c {
case ' ', '\n', '\t', '\r', ',':
continue
// we don't look for 0 as leading zeros are invalid per RFC
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
val, err := dec.getInt64()
if err != nil {
return err
}
*v = int(val)
return nil
case '-':
dec.cursor = dec.cursor + 1
val, err := dec.getInt64Negative()
if err != nil {
return err
}
*v = -int(val)
return nil
case 'n':
dec.cursor++
err := dec.assertNull()
if err != nil {
return err
}
return nil
default:
dec.err = InvalidUnmarshalError(
fmt.Sprintf(
"Cannot unmarshall to int, wrong char '%s' found at pos %d",
string(dec.data[dec.cursor]),
dec.cursor,
),
)
err := dec.skipData()
if err != nil {
return err
}
return nil
}
}
return dec.raiseInvalidJSONErr(dec.cursor)
}
func (dec *Decoder) decodeIntNull(v **int) error {
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch c := dec.data[dec.cursor]; c {
case ' ', '\n', '\t', '\r', ',':
continue
// we don't look for 0 as leading zeros are invalid per RFC
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
val, err := dec.getInt64()
if err != nil {
return err
}
if *v == nil {
*v = new(int)
}
**v = int(val)
return nil
case '-':
dec.cursor = dec.cursor + 1
val, err := dec.getInt64Negative()
if err != nil {
return err
}
if *v == nil {
*v = new(int)
}
**v = -int(val)
return nil
case 'n':
dec.cursor++
err := dec.assertNull()
if err != nil {
return err
}
return nil
default:
dec.err = InvalidUnmarshalError(
fmt.Sprintf(
"Cannot unmarshall to int, wrong char '%s' found at pos %d",
string(dec.data[dec.cursor]),
dec.cursor,
),
)
err := dec.skipData()
if err != nil {
return err
}
return nil
}
}
return dec.raiseInvalidJSONErr(dec.cursor)
}
// DecodeInt16 reads the next JSON-encoded value from the decoder's input (io.Reader) and stores it in the int16 pointed to by v.
//
// See the documentation for Unmarshal for details about the conversion of JSON into a Go value.
func (dec *Decoder) DecodeInt16(v *int16) error {
if dec.isPooled == 1 {
panic(InvalidUsagePooledDecoderError("Invalid usage of pooled decoder"))
}
return dec.decodeInt16(v)
}
func (dec *Decoder) decodeInt16(v *int16) error {
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch c := dec.data[dec.cursor]; c {
case ' ', '\n', '\t', '\r', ',':
continue
// we don't look for 0 as leading zeros are invalid per RFC
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
val, err := dec.getInt16()
if err != nil {
return err
}
*v = val
return nil
case '-':
dec.cursor = dec.cursor + 1
val, err := dec.getInt16Negative()
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) decodeInt16Null(v **int16) error {
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch c := dec.data[dec.cursor]; c {
case ' ', '\n', '\t', '\r', ',':
continue
// we don't look for 0 as leading zeros are invalid per RFC
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
val, err := dec.getInt16()
if err != nil {
return err
}
if *v == nil {
*v = new(int16)
}
**v = val
return nil
case '-':
dec.cursor = dec.cursor + 1
val, err := dec.getInt16Negative()
if err != nil {
return err
}
if *v == nil {
*v = new(int16)
}
**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) getInt16Negative() (int16, error) {
// look for following numbers
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch dec.data[dec.cursor] {
case '1', '2', '3', '4', '5', '6', '7', '8', '9':
return dec.getInt16()
default:
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
}
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
func (dec *Decoder) getInt16() (int16, 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 '.':
// if dot is found
// look for exponent (e,E) as exponent can change the
// way number should be parsed to int.
// if no exponent found, just unmarshal the number before decimal point
j++
startDecimal := j
endDecimal := j - 1
for ; j < dec.length || dec.read(); j++ {
switch dec.data[j] {
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
endDecimal = j
continue
case 'e', 'E':
if startDecimal > endDecimal {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
dec.cursor = j + 1
// can try unmarshalling to int as Exponent might change decimal number to non decimal
// let's get the float value first
// we get part before decimal as integer
beforeDecimal := dec.atoi16(start, end)
// get number after the decimal point
// multiple the before decimal point portion by 10 using bitwise
for i := startDecimal; i <= endDecimal; i++ {
beforeDecimal = (beforeDecimal << 3) + (beforeDecimal << 1)
}
// then we add both integers
// then we divide the number by the power found
afterDecimal := dec.atoi16(startDecimal, endDecimal)
expI := endDecimal - startDecimal + 2
if expI >= len(pow10uint64) || expI < 0 {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
pow := pow10uint64[expI]
floatVal := float64(beforeDecimal+afterDecimal) / float64(pow)
// we have the floating value, now multiply by the 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)
}
val := floatVal * float64(pow10uint64[pExp])
return int16(val), nil
case ' ', '\t', '\n', ',', ']', '}':
dec.cursor = j
return dec.atoi16(start, end), nil
default:
dec.cursor = j
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
}
return dec.atoi16(start, end), nil
case 'e', 'E':
// get init n
dec.cursor = j + 1
return dec.getInt16WithExp(dec.atoi16(start, end))
case ' ', '\n', '\t', '\r', ',', '}', ']':
dec.cursor = j
return dec.atoi16(start, end), nil
}
// invalid json we expect numbers, dot (single one), comma, or spaces
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
return dec.atoi16(start, end), nil
}
func (dec *Decoder) getInt16WithExp(init int16) (int16, error) {
var exp uint16
var sign = int16(1)
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch dec.data[dec.cursor] {
case '+':
continue
case '-':
sign = -1
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
uintv := uint16(digits[dec.data[dec.cursor]])
exp = (exp << 3) + (exp << 1) + uintv
dec.cursor++
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':
uintv := uint16(digits[dec.data[dec.cursor]])
exp = (exp << 3) + (exp << 1) + uintv
case ' ', '\t', '\n', '}', ',', ']':
exp = exp + 1
if exp >= uint16(len(pow10uint64)) {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
if sign == -1 {
return init * (1 / int16(pow10uint64[exp])), nil
}
return init * int16(pow10uint64[exp]), nil
default:
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
}
exp = exp + 1
if exp >= uint16(len(pow10uint64)) {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
if sign == -1 {
return init * (1 / int16(pow10uint64[exp])), nil
}
return init * int16(pow10uint64[exp]), nil
default:
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
}
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
// DecodeInt8 reads the next JSON-encoded value from the decoder's input (io.Reader) and stores it in the int8 pointed to by v.
//
// See the documentation for Unmarshal for details about the conversion of JSON into a Go value.
func (dec *Decoder) DecodeInt8(v *int8) error {
if dec.isPooled == 1 {
panic(InvalidUsagePooledDecoderError("Invalid usage of pooled decoder"))
}
return dec.decodeInt8(v)
}
func (dec *Decoder) decodeInt8(v *int8) error {
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch c := dec.data[dec.cursor]; c {
case ' ', '\n', '\t', '\r', ',':
continue
// we don't look for 0 as leading zeros are invalid per RFC
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
val, err := dec.getInt8()
if err != nil {
return err
}
*v = val
return nil
case '-':
dec.cursor = dec.cursor + 1
val, err := dec.getInt8Negative()
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) decodeInt8Null(v **int8) error {
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch c := dec.data[dec.cursor]; c {
case ' ', '\n', '\t', '\r', ',':
continue
// we don't look for 0 as leading zeros are invalid per RFC
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
val, err := dec.getInt8()
if err != nil {
return err
}
if *v == nil {
*v = new(int8)
}
**v = val
return nil
case '-':
dec.cursor = dec.cursor + 1
val, err := dec.getInt8Negative()
if err != nil {
return err
}
if *v == nil {
*v = new(int8)
}
**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) getInt8Negative() (int8, error) {
// look for following numbers
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch dec.data[dec.cursor] {
case '1', '2', '3', '4', '5', '6', '7', '8', '9':
return dec.getInt8()
default:
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
}
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
func (dec *Decoder) getInt8() (int8, 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 '.':
// if dot is found
// look for exponent (e,E) as exponent can change the
// way number should be parsed to int.
// if no exponent found, just unmarshal the number before decimal point
j++
startDecimal := j
endDecimal := j - 1
for ; j < dec.length || dec.read(); j++ {
switch dec.data[j] {
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
endDecimal = j
continue
case 'e', 'E':
if startDecimal > endDecimal {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
dec.cursor = j + 1
// can try unmarshalling to int as Exponent might change decimal number to non decimal
// let's get the float value first
// we get part before decimal as integer
beforeDecimal := dec.atoi8(start, end)
// get number after the decimal point
// multiple the before decimal point portion by 10 using bitwise
for i := startDecimal; i <= endDecimal; i++ {
beforeDecimal = (beforeDecimal << 3) + (beforeDecimal << 1)
}
// then we add both integers
// then we divide the number by the power found
afterDecimal := dec.atoi8(startDecimal, endDecimal)
expI := endDecimal - startDecimal + 2
if expI >= len(pow10uint64) || expI < 0 {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
pow := pow10uint64[expI]
floatVal := float64(beforeDecimal+afterDecimal) / float64(pow)
// we have the floating value, now multiply by the 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)
}
val := floatVal * float64(pow10uint64[pExp])
return int8(val), nil
case ' ', '\t', '\n', ',', ']', '}':
dec.cursor = j
return dec.atoi8(start, end), nil
default:
dec.cursor = j
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
}
return dec.atoi8(start, end), nil
case 'e', 'E':
// get init n
dec.cursor = j + 1
return dec.getInt8WithExp(dec.atoi8(start, end))
case ' ', '\n', '\t', '\r', ',', '}', ']':
dec.cursor = j
return dec.atoi8(start, end), nil
}
// invalid json we expect numbers, dot (single one), comma, or spaces
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
return dec.atoi8(start, end), nil
}
func (dec *Decoder) getInt8WithExp(init int8) (int8, error) {
var exp uint8
var sign = int8(1)
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch dec.data[dec.cursor] {
case '+':
continue
case '-':
sign = -1
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
uintv := uint8(digits[dec.data[dec.cursor]])
exp = (exp << 3) + (exp << 1) + uintv
dec.cursor++
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':
uintv := uint8(digits[dec.data[dec.cursor]])
exp = (exp << 3) + (exp << 1) + uintv
case ' ', '\t', '\n', '}', ',', ']':
if exp+1 >= uint8(len(pow10uint64)) {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
if sign == -1 {
return init * (1 / int8(pow10uint64[exp+1])), nil
}
return init * int8(pow10uint64[exp+1]), nil
default:
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
}
if exp+1 >= uint8(len(pow10uint64)) {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
if sign == -1 {
return init * (1 / int8(pow10uint64[exp+1])), nil
}
return init * int8(pow10uint64[exp+1]), nil
default:
dec.err = dec.raiseInvalidJSONErr(dec.cursor)
return 0, dec.err
}
}
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
// DecodeInt32 reads the next JSON-encoded value from the decoder's input (io.Reader) and stores it in the int32 pointed to by v.
//
// See the documentation for Unmarshal for details about the conversion of JSON into a Go value.
func (dec *Decoder) DecodeInt32(v *int32) error {
if dec.isPooled == 1 {
panic(InvalidUsagePooledDecoderError("Invalid usage of pooled decoder"))
}
return dec.decodeInt32(v)
}
func (dec *Decoder) decodeInt32(v *int32) 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.getInt32()
if err != nil {
return err
}
*v = val
return nil
case '-':
dec.cursor = dec.cursor + 1
val, err := dec.getInt32Negative()
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) decodeInt32Null(v **int32) 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.getInt32()
if err != nil {
return err
}
if *v == nil {
*v = new(int32)
}
**v = val
return nil
case '-':
dec.cursor = dec.cursor + 1
val, err := dec.getInt32Negative()
if err != nil {
return err
}
if *v == nil {
*v = new(int32)
}
**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) getInt32Negative() (int32, error) {
// look for following numbers
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch dec.data[dec.cursor] {
case '1', '2', '3', '4', '5', '6', '7', '8', '9':
return dec.getInt32()
default:
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
}
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
func (dec *Decoder) getInt32() (int32, 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 '.':
// if dot is found
// look for exponent (e,E) as exponent can change the
// way number should be parsed to int.
// if no exponent found, just unmarshal the number before decimal point
j++
startDecimal := j
endDecimal := j - 1
for ; j < dec.length || dec.read(); j++ {
switch dec.data[j] {
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
endDecimal = j
continue
case 'e', 'E':
// if eg 1.E
if startDecimal > endDecimal {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
dec.cursor = j + 1
// can try unmarshalling to int as Exponent might change decimal number to non decimal
// let's get the float value first
// we get part before decimal as integer
beforeDecimal := dec.atoi64(start, end)
// get number after the decimal point
// multiple the before decimal point portion by 10 using bitwise
for i := startDecimal; i <= endDecimal; i++ {
beforeDecimal = (beforeDecimal << 3) + (beforeDecimal << 1)
}
// then we add both integers
// then we divide the number by the power found
afterDecimal := dec.atoi64(startDecimal, endDecimal)
expI := endDecimal - startDecimal + 2
if expI >= len(pow10uint64) || expI < 0 {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
pow := pow10uint64[expI]
floatVal := float64(beforeDecimal+afterDecimal) / float64(pow)
// we have the floating value, now multiply by the 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)
}
val := floatVal * float64(pow10uint64[pExp])
return int32(val), nil
case ' ', '\t', '\n', ',', ']', '}':
dec.cursor = j
return dec.atoi32(start, end), nil
default:
dec.cursor = j
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
}
return dec.atoi32(start, end), nil
case 'e', 'E':
// get init n
dec.cursor = j + 1
return dec.getInt32WithExp(dec.atoi32(start, end))
case ' ', '\n', '\t', '\r', ',', '}', ']':
dec.cursor = j
return dec.atoi32(start, end), nil
}
// invalid json we expect numbers, dot (single one), comma, or spaces
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
return dec.atoi32(start, end), nil
}
func (dec *Decoder) getInt32WithExp(init int32) (int32, error) {
var exp uint32
var sign = int32(1)
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch dec.data[dec.cursor] {
case '+':
continue
case '-':
sign = -1
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
uintv := uint32(digits[dec.data[dec.cursor]])
exp = (exp << 3) + (exp << 1) + uintv
dec.cursor++
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':
uintv := uint32(digits[dec.data[dec.cursor]])
exp = (exp << 3) + (exp << 1) + uintv
case ' ', '\t', '\n', '}', ',', ']':
if exp+1 >= uint32(len(pow10uint64)) {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
if sign == -1 {
return init * (1 / int32(pow10uint64[exp+1])), nil
}
return init * int32(pow10uint64[exp+1]), nil
default:
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
}
if exp+1 >= uint32(len(pow10uint64)) {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
if sign == -1 {
return init * (1 / int32(pow10uint64[exp+1])), nil
}
return init * int32(pow10uint64[exp+1]), nil
default:
dec.err = dec.raiseInvalidJSONErr(dec.cursor)
return 0, dec.err
}
}
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
// DecodeInt64 reads the next JSON-encoded value from the decoder's input (io.Reader) and stores it in the int64 pointed to by v.
//
// See the documentation for Unmarshal for details about the conversion of JSON into a Go value.
func (dec *Decoder) DecodeInt64(v *int64) error {
if dec.isPooled == 1 {
panic(InvalidUsagePooledDecoderError("Invalid usage of pooled decoder"))
}
return dec.decodeInt64(v)
}
func (dec *Decoder) decodeInt64(v *int64) 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.getInt64()
if err != nil {
return err
}
*v = val
return nil
case '-':
dec.cursor = dec.cursor + 1
val, err := dec.getInt64Negative()
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) decodeInt64Null(v **int64) 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.getInt64()
if err != nil {
return err
}
if *v == nil {
*v = new(int64)
}
**v = val
return nil
case '-':
dec.cursor = dec.cursor + 1
val, err := dec.getInt64Negative()
if err != nil {
return err
}
if *v == nil {
*v = new(int64)
}
**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) getInt64Negative() (int64, error) {
// look for following numbers
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch dec.data[dec.cursor] {
case '1', '2', '3', '4', '5', '6', '7', '8', '9':
return dec.getInt64()
default:
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
}
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
func (dec *Decoder) getInt64() (int64, 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 ' ', '\t', '\n', ',', '}', ']':
dec.cursor = j
return dec.atoi64(start, end), nil
case '.':
// if dot is found
// look for exponent (e,E) as exponent can change the
// way number should be parsed to int.
// if no exponent found, just unmarshal the number before decimal point
j++
startDecimal := j
endDecimal := j - 1
for ; j < dec.length || dec.read(); j++ {
switch dec.data[j] {
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
endDecimal = j
continue
case 'e', 'E':
// if eg 1.E
if startDecimal > endDecimal {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
dec.cursor = j + 1
// can try unmarshalling to int as Exponent might change decimal number to non decimal
// let's get the float value first
// we get part before decimal as integer
beforeDecimal := dec.atoi64(start, end)
// get number after the decimal point
// multiple the before decimal point portion by 10 using bitwise
for i := startDecimal; i <= endDecimal; i++ {
beforeDecimal = (beforeDecimal << 3) + (beforeDecimal << 1)
}
// then we add both integers
// then we divide the number by the power found
afterDecimal := dec.atoi64(startDecimal, endDecimal)
expI := endDecimal - startDecimal + 2
if expI >= len(pow10uint64) || expI < 0 {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
pow := pow10uint64[expI]
floatVal := float64(beforeDecimal+afterDecimal) / float64(pow)
// we have the floating value, now multiply by the 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)
}
val := floatVal * float64(pow10uint64[pExp])
return int64(val), nil
case ' ', '\t', '\n', ',', ']', '}':
dec.cursor = j
return dec.atoi64(start, end), nil
default:
dec.cursor = j
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
}
return dec.atoi64(start, end), nil
case 'e', 'E':
// get init n
dec.cursor = j + 1
return dec.getInt64WithExp(dec.atoi64(start, end))
}
// invalid json we expect numbers, dot (single one), comma, or spaces
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
return dec.atoi64(start, end), nil
}
func (dec *Decoder) getInt64WithExp(init int64) (int64, error) {
var exp uint64
var sign = int64(1)
for ; dec.cursor < dec.length || dec.read(); dec.cursor++ {
switch dec.data[dec.cursor] {
case '+':
continue
case '-':
sign = -1
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
uintv := uint64(digits[dec.data[dec.cursor]])
exp = (exp << 3) + (exp << 1) + uintv
dec.cursor++
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':
uintv := uint64(digits[dec.data[dec.cursor]])
exp = (exp << 3) + (exp << 1) + uintv
case ' ', '\t', '\n', '}', ',', ']':
if exp+1 >= uint64(len(pow10uint64)) {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
if sign == -1 {
return init * (1 / int64(pow10uint64[exp+1])), nil
}
return init * int64(pow10uint64[exp+1]), nil
default:
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
}
if exp+1 >= uint64(len(pow10uint64)) {
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
if sign == -1 {
return init * (1 / int64(pow10uint64[exp+1])), nil
}
return init * int64(pow10uint64[exp+1]), nil
default:
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
}
return 0, dec.raiseInvalidJSONErr(dec.cursor)
}
func (dec *Decoder) atoi64(start, end int) int64 {
var ll = end + 1 - start
var val = int64(digits[dec.data[start]])
end = end + 1
if ll < maxInt64Length {
for i := start + 1; i < end; i++ {
intv := int64(digits[dec.data[i]])
val = (val << 3) + (val << 1) + intv
}
return val
} else if ll == maxInt64Length {
for i := start + 1; i < end; i++ {
intv := int64(digits[dec.data[i]])
if val > maxInt64toMultiply {
dec.err = dec.makeInvalidUnmarshalErr(val)
return 0
}
val = (val << 3) + (val << 1)
if math.MaxInt64-val < intv {
dec.err = dec.makeInvalidUnmarshalErr(val)
return 0
}
val += intv
}
} else {
dec.err = dec.makeInvalidUnmarshalErr(val)
return 0
}
return val
}
func (dec *Decoder) atoi32(start, end int) int32 {
var ll = end + 1 - start
var val = int32(digits[dec.data[start]])
end = end + 1
// overflowing
if ll < maxInt32Length {
for i := start + 1; i < end; i++ {
intv := int32(digits[dec.data[i]])
val = (val << 3) + (val << 1) + intv
}
} else if ll == maxInt32Length {
for i := start + 1; i < end; i++ {
intv := int32(digits[dec.data[i]])
if val > maxInt32toMultiply {
dec.err = dec.makeInvalidUnmarshalErr(val)
return 0
}
val = (val << 3) + (val << 1)
if math.MaxInt32-val < intv {
dec.err = dec.makeInvalidUnmarshalErr(val)
return 0
}
val += intv
}
} else {
dec.err = dec.makeInvalidUnmarshalErr(val)
return 0
}
return val
}
func (dec *Decoder) atoi16(start, end int) int16 {
var ll = end + 1 - start
var val = int16(digits[dec.data[start]])
end = end + 1
// overflowing
if ll < maxInt16Length {
for i := start + 1; i < end; i++ {
intv := int16(digits[dec.data[i]])
val = (val << 3) + (val << 1) + intv
}
} else if ll == maxInt16Length {
for i := start + 1; i < end; i++ {
intv := int16(digits[dec.data[i]])
if val > maxInt16toMultiply {
dec.err = dec.makeInvalidUnmarshalErr(val)
return 0
}
val = (val << 3) + (val << 1)
if math.MaxInt16-val < intv {
dec.err = dec.makeInvalidUnmarshalErr(val)
return 0
}
val += intv
}
} else {
dec.err = dec.makeInvalidUnmarshalErr(val)
return 0
}
return val
}
func (dec *Decoder) atoi8(start, end int) int8 {
var ll = end + 1 - start
var val = int8(digits[dec.data[start]])
end = end + 1
// overflowing
if ll < maxInt8Length {
for i := start + 1; i < end; i++ {
intv := int8(digits[dec.data[i]])
val = (val << 3) + (val << 1) + intv
}
} else if ll == maxInt8Length {
for i := start + 1; i < end; i++ {
intv := int8(digits[dec.data[i]])
if val > maxInt8toMultiply {
dec.err = dec.makeInvalidUnmarshalErr(val)
return 0
}
val = (val << 3) + (val << 1)
if math.MaxInt8-val < intv {
dec.err = dec.makeInvalidUnmarshalErr(val)
return 0
}
val += intv
}
} else {
dec.err = dec.makeInvalidUnmarshalErr(val)
return 0
}
return val
}
// Add Values functions
// AddInt decodes the JSON value within an object or an array to an *int.
// If next key value overflows int, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) AddInt(v *int) error {
return dec.Int(v)
}
// AddIntNull decodes the JSON value within an object or an array to an *int.
// If next key value overflows int, an InvalidUnmarshalError error will be returned.
// If a `null` is encountered, gojay does not change the value of the pointer.
func (dec *Decoder) AddIntNull(v **int) error {
return dec.IntNull(v)
}
// AddInt8 decodes the JSON value within an object or an array to an *int.
// If next key value overflows int8, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) AddInt8(v *int8) error {
return dec.Int8(v)
}
// AddInt8Null decodes the JSON value within an object or an array to an *int.
// If next key value overflows int8, an InvalidUnmarshalError error will be returned.
// If a `null` is encountered, gojay does not change the value of the pointer.
func (dec *Decoder) AddInt8Null(v **int8) error {
return dec.Int8Null(v)
}
// AddInt16 decodes the JSON value within an object or an array to an *int.
// If next key value overflows int16, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) AddInt16(v *int16) error {
return dec.Int16(v)
}
// AddInt16Null decodes the JSON value within an object or an array to an *int.
// If next key value overflows int16, an InvalidUnmarshalError error will be returned.
// If a `null` is encountered, gojay does not change the value of the pointer.
func (dec *Decoder) AddInt16Null(v **int16) error {
return dec.Int16Null(v)
}
// AddInt32 decodes the JSON value within an object or an array to an *int.
// If next key value overflows int32, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) AddInt32(v *int32) error {
return dec.Int32(v)
}
// AddInt32Null decodes the JSON value within an object or an array to an *int.
// If next key value overflows int32, an InvalidUnmarshalError error will be returned.
// If a `null` is encountered, gojay does not change the value of the pointer.
func (dec *Decoder) AddInt32Null(v **int32) error {
return dec.Int32Null(v)
}
// AddInt64 decodes the JSON value within an object or an array to an *int.
// If next key value overflows int64, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) AddInt64(v *int64) error {
return dec.Int64(v)
}
// AddInt64Null decodes the JSON value within an object or an array to an *int.
// If next key value overflows int64, an InvalidUnmarshalError error will be returned.
// If a `null` is encountered, gojay does not change the value of the pointer.
func (dec *Decoder) AddInt64Null(v **int64) error {
return dec.Int64Null(v)
}
// Int decodes the JSON value within an object or an array to an *int.
// If next key value overflows int, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) Int(v *int) error {
err := dec.decodeInt(v)
if err != nil {
return err
}
dec.called |= 1
return nil
}
// IntNull decodes the JSON value within an object or an array to an *int.
// If next key value overflows int, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) IntNull(v **int) error {
err := dec.decodeIntNull(v)
if err != nil {
return err
}
dec.called |= 1
return nil
}
// Int8 decodes the JSON value within an object or an array to an *int.
// If next key value overflows int8, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) Int8(v *int8) error {
err := dec.decodeInt8(v)
if err != nil {
return err
}
dec.called |= 1
return nil
}
// Int8Null decodes the JSON value within an object or an array to an *int.
// If next key value overflows int8, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) Int8Null(v **int8) error {
err := dec.decodeInt8Null(v)
if err != nil {
return err
}
dec.called |= 1
return nil
}
// Int16 decodes the JSON value within an object or an array to an *int.
// If next key value overflows int16, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) Int16(v *int16) error {
err := dec.decodeInt16(v)
if err != nil {
return err
}
dec.called |= 1
return nil
}
// Int16Null decodes the JSON value within an object or an array to an *int.
// If next key value overflows int16, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) Int16Null(v **int16) error {
err := dec.decodeInt16Null(v)
if err != nil {
return err
}
dec.called |= 1
return nil
}
// Int32 decodes the JSON value within an object or an array to an *int.
// If next key value overflows int32, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) Int32(v *int32) error {
err := dec.decodeInt32(v)
if err != nil {
return err
}
dec.called |= 1
return nil
}
// Int32Null decodes the JSON value within an object or an array to an *int.
// If next key value overflows int32, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) Int32Null(v **int32) error {
err := dec.decodeInt32Null(v)
if err != nil {
return err
}
dec.called |= 1
return nil
}
// Int64 decodes the JSON value within an object or an array to an *int.
// If next key value overflows int64, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) Int64(v *int64) error {
err := dec.decodeInt64(v)
if err != nil {
return err
}
dec.called |= 1
return nil
}
// Int64Null decodes the JSON value within an object or an array to an *int.
// If next key value overflows int64, an InvalidUnmarshalError error will be returned.
func (dec *Decoder) Int64Null(v **int64) error {
err := dec.decodeInt64Null(v)
if err != nil {
return err
}
dec.called |= 1
return nil
}