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author | Wim <wim@42.be> | 2020-08-10 00:29:54 +0200 |
---|---|---|
committer | GitHub <noreply@github.com> | 2020-08-10 00:29:54 +0200 |
commit | 4e50fd864921c556988c919269448efdb90fa961 (patch) | |
tree | a3625f03f8de3c4f3841364000a4ea3aa42c1533 /vendor/github.com/francoispqt/gojay/decode_number_int.go | |
parent | dfdffa0027334e55ce213fc6eb62206dbf48baf6 (diff) | |
download | matterbridge-msglm-4e50fd864921c556988c919269448efdb90fa961.tar.gz matterbridge-msglm-4e50fd864921c556988c919269448efdb90fa961.tar.bz2 matterbridge-msglm-4e50fd864921c556988c919269448efdb90fa961.zip |
Use mattermost v5 module (#1192)
Diffstat (limited to 'vendor/github.com/francoispqt/gojay/decode_number_int.go')
-rw-r--r-- | vendor/github.com/francoispqt/gojay/decode_number_int.go | 1338 |
1 files changed, 1338 insertions, 0 deletions
diff --git a/vendor/github.com/francoispqt/gojay/decode_number_int.go b/vendor/github.com/francoispqt/gojay/decode_number_int.go new file mode 100644 index 00000000..8429049f --- /dev/null +++ b/vendor/github.com/francoispqt/gojay/decode_number_int.go @@ -0,0 +1,1338 @@ +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 +} |