github.com/zerosnake0/jzon@v0.0.9-0.20230801092939-1b135cb83f7f/val_decoder_native_int.go (about) 1 package jzon 2 3 import ( 4 "unsafe" 5 ) 6 7 // int8 decoder 8 type int8Decoder struct { 9 } 10 11 func (*int8Decoder) Decode(ptr unsafe.Pointer, it *Iterator, opts *DecOpts) error { 12 c, err := it.nextToken() 13 if err != nil { 14 return err 15 } 16 if c == 'n' { 17 it.head++ 18 return it.expectBytes("ull") 19 } 20 quoted := (opts != nil) && (opts.Quoted || opts.MapKey) 21 if quoted { 22 if c != '"' { 23 return UnexpectedByteError{got: c, exp: '"'} 24 } 25 it.head++ 26 c, err = it.nextByte() 27 if err != nil { 28 return err 29 } 30 } 31 it.head++ 32 i, err := it.readInt8(c) 33 if err != nil { 34 return err 35 } 36 if quoted { 37 c, err = it.nextByte() 38 if err != nil { 39 return err 40 } 41 if c != '"' { 42 return UnexpectedByteError{got: c, exp: '"'} 43 } 44 it.head++ 45 } 46 *(*int8)(ptr) = i 47 return nil 48 } 49 50 // int16 decoder 51 type int16Decoder struct { 52 } 53 54 func (*int16Decoder) Decode(ptr unsafe.Pointer, it *Iterator, opts *DecOpts) error { 55 c, err := it.nextToken() 56 if err != nil { 57 return err 58 } 59 if c == 'n' { 60 it.head++ 61 return it.expectBytes("ull") 62 } 63 quoted := (opts != nil) && (opts.Quoted || opts.MapKey) 64 if quoted { 65 if c != '"' { 66 return UnexpectedByteError{got: c, exp: '"'} 67 } 68 it.head++ 69 c, err = it.nextByte() 70 if err != nil { 71 return err 72 } 73 } 74 it.head++ 75 i, err := it.readInt16(c) 76 if err != nil { 77 return err 78 } 79 if quoted { 80 c, err = it.nextByte() 81 if err != nil { 82 return err 83 } 84 if c != '"' { 85 return UnexpectedByteError{got: c, exp: '"'} 86 } 87 it.head++ 88 } 89 *(*int16)(ptr) = i 90 return nil 91 } 92 93 // int32 decoder 94 type int32Decoder struct { 95 } 96 97 func (*int32Decoder) Decode(ptr unsafe.Pointer, it *Iterator, opts *DecOpts) error { 98 c, err := it.nextToken() 99 if err != nil { 100 return err 101 } 102 if c == 'n' { 103 it.head++ 104 return it.expectBytes("ull") 105 } 106 quoted := (opts != nil) && (opts.Quoted || opts.MapKey) 107 if quoted { 108 if c != '"' { 109 return UnexpectedByteError{got: c, exp: '"'} 110 } 111 it.head++ 112 c, err = it.nextByte() 113 if err != nil { 114 return err 115 } 116 } 117 it.head++ 118 i, err := it.readInt32(c) 119 if err != nil { 120 return err 121 } 122 if quoted { 123 c, err = it.nextByte() 124 if err != nil { 125 return err 126 } 127 if c != '"' { 128 return UnexpectedByteError{got: c, exp: '"'} 129 } 130 it.head++ 131 } 132 *(*int32)(ptr) = i 133 return nil 134 } 135 136 // int64 decoder 137 type int64Decoder struct { 138 } 139 140 func (*int64Decoder) Decode(ptr unsafe.Pointer, it *Iterator, opts *DecOpts) error { 141 c, err := it.nextToken() 142 if err != nil { 143 return err 144 } 145 if c == 'n' { 146 it.head++ 147 return it.expectBytes("ull") 148 } 149 quoted := (opts != nil) && (opts.Quoted || opts.MapKey) 150 if quoted { 151 if c != '"' { 152 return UnexpectedByteError{got: c, exp: '"'} 153 } 154 it.head++ 155 c, err = it.nextByte() 156 if err != nil { 157 return err 158 } 159 } 160 it.head++ 161 i, err := it.readInt64(c) 162 if err != nil { 163 return err 164 } 165 if quoted { 166 c, err = it.nextByte() 167 if err != nil { 168 return err 169 } 170 if c != '"' { 171 return UnexpectedByteError{got: c, exp: '"'} 172 } 173 it.head++ 174 } 175 *(*int64)(ptr) = i 176 return nil 177 }