diff options
Diffstat (limited to 'vendor/github.com/goccy/go-json/internal/encoder/int.go')
| -rw-r--r-- | vendor/github.com/goccy/go-json/internal/encoder/int.go | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/vendor/github.com/goccy/go-json/internal/encoder/int.go b/vendor/github.com/goccy/go-json/internal/encoder/int.go deleted file mode 100644 index 8b5febeaa..000000000 --- a/vendor/github.com/goccy/go-json/internal/encoder/int.go +++ /dev/null @@ -1,176 +0,0 @@ -// This files's processing codes are inspired by https://github.com/segmentio/encoding. -// The license notation is as follows. -// -// # MIT License -// -// Copyright (c) 2019 Segment.io, Inc. -// -// Permission is hereby granted, free of charge, to any person obtaining a copy -// of this software and associated documentation files (the "Software"), to deal -// in the Software without restriction, including without limitation the rights -// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -// copies of the Software, and to permit persons to whom the Software is -// furnished to do so, subject to the following conditions: -// -// The above copyright notice and this permission notice shall be included in all -// copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -// SOFTWARE. -package encoder - -import ( - "unsafe" -) - -var endianness int - -func init() { - var b [2]byte - *(*uint16)(unsafe.Pointer(&b)) = uint16(0xABCD) - - switch b[0] { - case 0xCD: - endianness = 0 // LE - case 0xAB: - endianness = 1 // BE - default: - panic("could not determine endianness") - } -} - -// "00010203...96979899" cast to []uint16 -var intLELookup = [100]uint16{ - 0x3030, 0x3130, 0x3230, 0x3330, 0x3430, 0x3530, 0x3630, 0x3730, 0x3830, 0x3930, - 0x3031, 0x3131, 0x3231, 0x3331, 0x3431, 0x3531, 0x3631, 0x3731, 0x3831, 0x3931, - 0x3032, 0x3132, 0x3232, 0x3332, 0x3432, 0x3532, 0x3632, 0x3732, 0x3832, 0x3932, - 0x3033, 0x3133, 0x3233, 0x3333, 0x3433, 0x3533, 0x3633, 0x3733, 0x3833, 0x3933, - 0x3034, 0x3134, 0x3234, 0x3334, 0x3434, 0x3534, 0x3634, 0x3734, 0x3834, 0x3934, - 0x3035, 0x3135, 0x3235, 0x3335, 0x3435, 0x3535, 0x3635, 0x3735, 0x3835, 0x3935, - 0x3036, 0x3136, 0x3236, 0x3336, 0x3436, 0x3536, 0x3636, 0x3736, 0x3836, 0x3936, - 0x3037, 0x3137, 0x3237, 0x3337, 0x3437, 0x3537, 0x3637, 0x3737, 0x3837, 0x3937, - 0x3038, 0x3138, 0x3238, 0x3338, 0x3438, 0x3538, 0x3638, 0x3738, 0x3838, 0x3938, - 0x3039, 0x3139, 0x3239, 0x3339, 0x3439, 0x3539, 0x3639, 0x3739, 0x3839, 0x3939, -} - -var intBELookup = [100]uint16{ - 0x3030, 0x3031, 0x3032, 0x3033, 0x3034, 0x3035, 0x3036, 0x3037, 0x3038, 0x3039, - 0x3130, 0x3131, 0x3132, 0x3133, 0x3134, 0x3135, 0x3136, 0x3137, 0x3138, 0x3139, - 0x3230, 0x3231, 0x3232, 0x3233, 0x3234, 0x3235, 0x3236, 0x3237, 0x3238, 0x3239, - 0x3330, 0x3331, 0x3332, 0x3333, 0x3334, 0x3335, 0x3336, 0x3337, 0x3338, 0x3339, - 0x3430, 0x3431, 0x3432, 0x3433, 0x3434, 0x3435, 0x3436, 0x3437, 0x3438, 0x3439, - 0x3530, 0x3531, 0x3532, 0x3533, 0x3534, 0x3535, 0x3536, 0x3537, 0x3538, 0x3539, - 0x3630, 0x3631, 0x3632, 0x3633, 0x3634, 0x3635, 0x3636, 0x3637, 0x3638, 0x3639, - 0x3730, 0x3731, 0x3732, 0x3733, 0x3734, 0x3735, 0x3736, 0x3737, 0x3738, 0x3739, - 0x3830, 0x3831, 0x3832, 0x3833, 0x3834, 0x3835, 0x3836, 0x3837, 0x3838, 0x3839, - 0x3930, 0x3931, 0x3932, 0x3933, 0x3934, 0x3935, 0x3936, 0x3937, 0x3938, 0x3939, -} - -var intLookup = [2]*[100]uint16{&intLELookup, &intBELookup} - -func numMask(numBitSize uint8) uint64 { - return 1<<numBitSize - 1 -} - -func AppendInt(_ *RuntimeContext, out []byte, p uintptr, code *Opcode) []byte { - var u64 uint64 - switch code.NumBitSize { - case 8: - u64 = (uint64)(**(**uint8)(unsafe.Pointer(&p))) - case 16: - u64 = (uint64)(**(**uint16)(unsafe.Pointer(&p))) - case 32: - u64 = (uint64)(**(**uint32)(unsafe.Pointer(&p))) - case 64: - u64 = **(**uint64)(unsafe.Pointer(&p)) - } - mask := numMask(code.NumBitSize) - n := u64 & mask - negative := (u64>>(code.NumBitSize-1))&1 == 1 - if !negative { - if n < 10 { - return append(out, byte(n+'0')) - } else if n < 100 { - u := intLELookup[n] - return append(out, byte(u), byte(u>>8)) - } - } else { - n = -n & mask - } - - lookup := intLookup[endianness] - - var b [22]byte - u := (*[11]uint16)(unsafe.Pointer(&b)) - i := 11 - - for n >= 100 { - j := n % 100 - n /= 100 - i-- - u[i] = lookup[j] - } - - i-- - u[i] = lookup[n] - - i *= 2 // convert to byte index - if n < 10 { - i++ // remove leading zero - } - if negative { - i-- - b[i] = '-' - } - - return append(out, b[i:]...) -} - -func AppendUint(_ *RuntimeContext, out []byte, p uintptr, code *Opcode) []byte { - var u64 uint64 - switch code.NumBitSize { - case 8: - u64 = (uint64)(**(**uint8)(unsafe.Pointer(&p))) - case 16: - u64 = (uint64)(**(**uint16)(unsafe.Pointer(&p))) - case 32: - u64 = (uint64)(**(**uint32)(unsafe.Pointer(&p))) - case 64: - u64 = **(**uint64)(unsafe.Pointer(&p)) - } - mask := numMask(code.NumBitSize) - n := u64 & mask - if n < 10 { - return append(out, byte(n+'0')) - } else if n < 100 { - u := intLELookup[n] - return append(out, byte(u), byte(u>>8)) - } - - lookup := intLookup[endianness] - - var b [22]byte - u := (*[11]uint16)(unsafe.Pointer(&b)) - i := 11 - - for n >= 100 { - j := n % 100 - n /= 100 - i-- - u[i] = lookup[j] - } - - i-- - u[i] = lookup[n] - - i *= 2 // convert to byte index - if n < 10 { - i++ // remove leading zero - } - return append(out, b[i:]...) -} |