Damien Neil | c37adef | 2019-04-01 13:49:56 -0700 | [diff] [blame] | 1 | // Copyright 2019 The Go Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style |
| 3 | // license that can be found in the LICENSE file. |
| 4 | |
| 5 | package impl |
| 6 | |
| 7 | import ( |
| 8 | "fmt" |
| 9 | "reflect" |
| 10 | |
| 11 | pref "google.golang.org/protobuf/reflect/protoreflect" |
| 12 | ) |
| 13 | |
| 14 | // pointerCoderFuncs is a set of pointer encoding functions. |
| 15 | type pointerCoderFuncs struct { |
| 16 | size func(p pointer, tagsize int, opts marshalOptions) int |
| 17 | marshal func(b []byte, p pointer, wiretag uint64, opts marshalOptions) ([]byte, error) |
Damien Neil | 5322bdb | 2019-04-09 15:57:05 -0700 | [diff] [blame] | 18 | isInit func(p pointer) error |
Damien Neil | c37adef | 2019-04-01 13:49:56 -0700 | [diff] [blame] | 19 | } |
| 20 | |
| 21 | // ifaceCoderFuncs is a set of interface{} encoding functions. |
| 22 | type ifaceCoderFuncs struct { |
| 23 | size func(ival interface{}, tagsize int, opts marshalOptions) int |
| 24 | marshal func(b []byte, ival interface{}, wiretag uint64, opts marshalOptions) ([]byte, error) |
Damien Neil | 5322bdb | 2019-04-09 15:57:05 -0700 | [diff] [blame] | 25 | isInit func(ival interface{}) error |
Damien Neil | c37adef | 2019-04-01 13:49:56 -0700 | [diff] [blame] | 26 | } |
| 27 | |
| 28 | // fieldCoder returns pointer functions for a field, used for operating on |
| 29 | // struct fields. |
| 30 | func fieldCoder(fd pref.FieldDescriptor, ft reflect.Type) pointerCoderFuncs { |
| 31 | switch { |
| 32 | case fd.Cardinality() == pref.Repeated && !fd.IsPacked(): |
| 33 | // Repeated fields (not packed). |
| 34 | if ft.Kind() != reflect.Slice { |
| 35 | break |
| 36 | } |
| 37 | ft := ft.Elem() |
| 38 | switch fd.Kind() { |
| 39 | case pref.BoolKind: |
| 40 | if ft.Kind() == reflect.Bool { |
| 41 | return coderBoolSlice |
| 42 | } |
| 43 | case pref.EnumKind: |
| 44 | if ft.Kind() == reflect.Int32 { |
| 45 | return coderEnumSlice |
| 46 | } |
| 47 | case pref.Int32Kind: |
| 48 | if ft.Kind() == reflect.Int32 { |
| 49 | return coderInt32Slice |
| 50 | } |
| 51 | case pref.Sint32Kind: |
| 52 | if ft.Kind() == reflect.Int32 { |
| 53 | return coderSint32Slice |
| 54 | } |
| 55 | case pref.Uint32Kind: |
| 56 | if ft.Kind() == reflect.Uint32 { |
| 57 | return coderUint32Slice |
| 58 | } |
| 59 | case pref.Int64Kind: |
| 60 | if ft.Kind() == reflect.Int64 { |
| 61 | return coderInt64Slice |
| 62 | } |
| 63 | case pref.Sint64Kind: |
| 64 | if ft.Kind() == reflect.Int64 { |
| 65 | return coderSint64Slice |
| 66 | } |
| 67 | case pref.Uint64Kind: |
| 68 | if ft.Kind() == reflect.Uint64 { |
| 69 | return coderUint64Slice |
| 70 | } |
| 71 | case pref.Sfixed32Kind: |
| 72 | if ft.Kind() == reflect.Int32 { |
| 73 | return coderSfixed32Slice |
| 74 | } |
| 75 | case pref.Fixed32Kind: |
| 76 | if ft.Kind() == reflect.Uint32 { |
| 77 | return coderFixed32Slice |
| 78 | } |
| 79 | case pref.FloatKind: |
| 80 | if ft.Kind() == reflect.Float32 { |
| 81 | return coderFloatSlice |
| 82 | } |
| 83 | case pref.Sfixed64Kind: |
| 84 | if ft.Kind() == reflect.Int64 { |
| 85 | return coderSfixed64Slice |
| 86 | } |
| 87 | case pref.Fixed64Kind: |
| 88 | if ft.Kind() == reflect.Uint64 { |
| 89 | return coderFixed64Slice |
| 90 | } |
| 91 | case pref.DoubleKind: |
| 92 | if ft.Kind() == reflect.Float64 { |
| 93 | return coderDoubleSlice |
| 94 | } |
| 95 | case pref.StringKind: |
| 96 | if ft.Kind() == reflect.String && fd.Syntax() == pref.Proto3 { |
| 97 | return coderStringSliceValidateUTF8 |
| 98 | } |
| 99 | if ft.Kind() == reflect.String { |
| 100 | return coderStringSlice |
| 101 | } |
| 102 | if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 { |
| 103 | return coderBytesSlice |
| 104 | } |
| 105 | case pref.BytesKind: |
| 106 | if ft.Kind() == reflect.String { |
| 107 | return coderStringSlice |
| 108 | } |
| 109 | if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 { |
| 110 | return coderBytesSlice |
| 111 | } |
| 112 | case pref.MessageKind: |
| 113 | return makeMessageSliceFieldCoder(fd, ft) |
| 114 | case pref.GroupKind: |
| 115 | return makeGroupSliceFieldCoder(fd, ft) |
| 116 | } |
| 117 | case fd.Cardinality() == pref.Repeated && fd.IsPacked(): |
| 118 | // Packed repeated fields. |
| 119 | // |
| 120 | // Only repeated fields of primitive numeric types |
| 121 | // (Varint, Fixed32, or Fixed64 wire type) can be packed. |
| 122 | if ft.Kind() != reflect.Slice { |
| 123 | break |
| 124 | } |
| 125 | ft := ft.Elem() |
| 126 | switch fd.Kind() { |
| 127 | case pref.BoolKind: |
| 128 | if ft.Kind() == reflect.Bool { |
| 129 | return coderBoolPackedSlice |
| 130 | } |
| 131 | case pref.EnumKind: |
| 132 | if ft.Kind() == reflect.Int32 { |
| 133 | return coderEnumPackedSlice |
| 134 | } |
| 135 | case pref.Int32Kind: |
| 136 | if ft.Kind() == reflect.Int32 { |
| 137 | return coderInt32PackedSlice |
| 138 | } |
| 139 | case pref.Sint32Kind: |
| 140 | if ft.Kind() == reflect.Int32 { |
| 141 | return coderSint32PackedSlice |
| 142 | } |
| 143 | case pref.Uint32Kind: |
| 144 | if ft.Kind() == reflect.Uint32 { |
| 145 | return coderUint32PackedSlice |
| 146 | } |
| 147 | case pref.Int64Kind: |
| 148 | if ft.Kind() == reflect.Int64 { |
| 149 | return coderInt64PackedSlice |
| 150 | } |
| 151 | case pref.Sint64Kind: |
| 152 | if ft.Kind() == reflect.Int64 { |
| 153 | return coderSint64PackedSlice |
| 154 | } |
| 155 | case pref.Uint64Kind: |
| 156 | if ft.Kind() == reflect.Uint64 { |
| 157 | return coderUint64PackedSlice |
| 158 | } |
| 159 | case pref.Sfixed32Kind: |
| 160 | if ft.Kind() == reflect.Int32 { |
| 161 | return coderSfixed32PackedSlice |
| 162 | } |
| 163 | case pref.Fixed32Kind: |
| 164 | if ft.Kind() == reflect.Uint32 { |
| 165 | return coderFixed32PackedSlice |
| 166 | } |
| 167 | case pref.FloatKind: |
| 168 | if ft.Kind() == reflect.Float32 { |
| 169 | return coderFloatPackedSlice |
| 170 | } |
| 171 | case pref.Sfixed64Kind: |
| 172 | if ft.Kind() == reflect.Int64 { |
| 173 | return coderSfixed64PackedSlice |
| 174 | } |
| 175 | case pref.Fixed64Kind: |
| 176 | if ft.Kind() == reflect.Uint64 { |
| 177 | return coderFixed64PackedSlice |
| 178 | } |
| 179 | case pref.DoubleKind: |
| 180 | if ft.Kind() == reflect.Float64 { |
| 181 | return coderDoublePackedSlice |
| 182 | } |
| 183 | } |
| 184 | case fd.Kind() == pref.MessageKind: |
| 185 | return makeMessageFieldCoder(fd, ft) |
| 186 | case fd.Kind() == pref.GroupKind: |
| 187 | return makeGroupFieldCoder(fd, ft) |
| 188 | case fd.Syntax() == pref.Proto3 && fd.ContainingOneof() == nil: |
| 189 | // Populated oneof fields always encode even if set to the zero value, |
| 190 | // which normally are not encoded in proto3. |
| 191 | switch fd.Kind() { |
| 192 | case pref.BoolKind: |
| 193 | if ft.Kind() == reflect.Bool { |
| 194 | return coderBoolNoZero |
| 195 | } |
| 196 | case pref.EnumKind: |
| 197 | if ft.Kind() == reflect.Int32 { |
| 198 | return coderEnumNoZero |
| 199 | } |
| 200 | case pref.Int32Kind: |
| 201 | if ft.Kind() == reflect.Int32 { |
| 202 | return coderInt32NoZero |
| 203 | } |
| 204 | case pref.Sint32Kind: |
| 205 | if ft.Kind() == reflect.Int32 { |
| 206 | return coderSint32NoZero |
| 207 | } |
| 208 | case pref.Uint32Kind: |
| 209 | if ft.Kind() == reflect.Uint32 { |
| 210 | return coderUint32NoZero |
| 211 | } |
| 212 | case pref.Int64Kind: |
| 213 | if ft.Kind() == reflect.Int64 { |
| 214 | return coderInt64NoZero |
| 215 | } |
| 216 | case pref.Sint64Kind: |
| 217 | if ft.Kind() == reflect.Int64 { |
| 218 | return coderSint64NoZero |
| 219 | } |
| 220 | case pref.Uint64Kind: |
| 221 | if ft.Kind() == reflect.Uint64 { |
| 222 | return coderUint64NoZero |
| 223 | } |
| 224 | case pref.Sfixed32Kind: |
| 225 | if ft.Kind() == reflect.Int32 { |
| 226 | return coderSfixed32NoZero |
| 227 | } |
| 228 | case pref.Fixed32Kind: |
| 229 | if ft.Kind() == reflect.Uint32 { |
| 230 | return coderFixed32NoZero |
| 231 | } |
| 232 | case pref.FloatKind: |
| 233 | if ft.Kind() == reflect.Float32 { |
| 234 | return coderFloatNoZero |
| 235 | } |
| 236 | case pref.Sfixed64Kind: |
| 237 | if ft.Kind() == reflect.Int64 { |
| 238 | return coderSfixed64NoZero |
| 239 | } |
| 240 | case pref.Fixed64Kind: |
| 241 | if ft.Kind() == reflect.Uint64 { |
| 242 | return coderFixed64NoZero |
| 243 | } |
| 244 | case pref.DoubleKind: |
| 245 | if ft.Kind() == reflect.Float64 { |
| 246 | return coderDoubleNoZero |
| 247 | } |
| 248 | case pref.StringKind: |
| 249 | if ft.Kind() == reflect.String { |
| 250 | return coderStringNoZeroValidateUTF8 |
| 251 | } |
| 252 | if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 { |
| 253 | return coderBytesNoZero |
| 254 | } |
| 255 | case pref.BytesKind: |
| 256 | if ft.Kind() == reflect.String { |
| 257 | return coderStringNoZero |
| 258 | } |
| 259 | if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 { |
| 260 | return coderBytesNoZero |
| 261 | } |
| 262 | } |
| 263 | case ft.Kind() == reflect.Ptr: |
| 264 | ft := ft.Elem() |
| 265 | switch fd.Kind() { |
| 266 | case pref.BoolKind: |
| 267 | if ft.Kind() == reflect.Bool { |
| 268 | return coderBoolPtr |
| 269 | } |
| 270 | case pref.EnumKind: |
| 271 | if ft.Kind() == reflect.Int32 { |
| 272 | return coderEnumPtr |
| 273 | } |
| 274 | case pref.Int32Kind: |
| 275 | if ft.Kind() == reflect.Int32 { |
| 276 | return coderInt32Ptr |
| 277 | } |
| 278 | case pref.Sint32Kind: |
| 279 | if ft.Kind() == reflect.Int32 { |
| 280 | return coderSint32Ptr |
| 281 | } |
| 282 | case pref.Uint32Kind: |
| 283 | if ft.Kind() == reflect.Uint32 { |
| 284 | return coderUint32Ptr |
| 285 | } |
| 286 | case pref.Int64Kind: |
| 287 | if ft.Kind() == reflect.Int64 { |
| 288 | return coderInt64Ptr |
| 289 | } |
| 290 | case pref.Sint64Kind: |
| 291 | if ft.Kind() == reflect.Int64 { |
| 292 | return coderSint64Ptr |
| 293 | } |
| 294 | case pref.Uint64Kind: |
| 295 | if ft.Kind() == reflect.Uint64 { |
| 296 | return coderUint64Ptr |
| 297 | } |
| 298 | case pref.Sfixed32Kind: |
| 299 | if ft.Kind() == reflect.Int32 { |
| 300 | return coderSfixed32Ptr |
| 301 | } |
| 302 | case pref.Fixed32Kind: |
| 303 | if ft.Kind() == reflect.Uint32 { |
| 304 | return coderFixed32Ptr |
| 305 | } |
| 306 | case pref.FloatKind: |
| 307 | if ft.Kind() == reflect.Float32 { |
| 308 | return coderFloatPtr |
| 309 | } |
| 310 | case pref.Sfixed64Kind: |
| 311 | if ft.Kind() == reflect.Int64 { |
| 312 | return coderSfixed64Ptr |
| 313 | } |
| 314 | case pref.Fixed64Kind: |
| 315 | if ft.Kind() == reflect.Uint64 { |
| 316 | return coderFixed64Ptr |
| 317 | } |
| 318 | case pref.DoubleKind: |
| 319 | if ft.Kind() == reflect.Float64 { |
| 320 | return coderDoublePtr |
| 321 | } |
| 322 | case pref.StringKind: |
| 323 | if ft.Kind() == reflect.String { |
| 324 | return coderStringPtr |
| 325 | } |
| 326 | case pref.BytesKind: |
| 327 | if ft.Kind() == reflect.String { |
| 328 | return coderStringPtr |
| 329 | } |
| 330 | } |
| 331 | default: |
| 332 | switch fd.Kind() { |
| 333 | case pref.BoolKind: |
| 334 | if ft.Kind() == reflect.Bool { |
| 335 | return coderBool |
| 336 | } |
| 337 | case pref.EnumKind: |
| 338 | if ft.Kind() == reflect.Int32 { |
| 339 | return coderEnum |
| 340 | } |
| 341 | case pref.Int32Kind: |
| 342 | if ft.Kind() == reflect.Int32 { |
| 343 | return coderInt32 |
| 344 | } |
| 345 | case pref.Sint32Kind: |
| 346 | if ft.Kind() == reflect.Int32 { |
| 347 | return coderSint32 |
| 348 | } |
| 349 | case pref.Uint32Kind: |
| 350 | if ft.Kind() == reflect.Uint32 { |
| 351 | return coderUint32 |
| 352 | } |
| 353 | case pref.Int64Kind: |
| 354 | if ft.Kind() == reflect.Int64 { |
| 355 | return coderInt64 |
| 356 | } |
| 357 | case pref.Sint64Kind: |
| 358 | if ft.Kind() == reflect.Int64 { |
| 359 | return coderSint64 |
| 360 | } |
| 361 | case pref.Uint64Kind: |
| 362 | if ft.Kind() == reflect.Uint64 { |
| 363 | return coderUint64 |
| 364 | } |
| 365 | case pref.Sfixed32Kind: |
| 366 | if ft.Kind() == reflect.Int32 { |
| 367 | return coderSfixed32 |
| 368 | } |
| 369 | case pref.Fixed32Kind: |
| 370 | if ft.Kind() == reflect.Uint32 { |
| 371 | return coderFixed32 |
| 372 | } |
| 373 | case pref.FloatKind: |
| 374 | if ft.Kind() == reflect.Float32 { |
| 375 | return coderFloat |
| 376 | } |
| 377 | case pref.Sfixed64Kind: |
| 378 | if ft.Kind() == reflect.Int64 { |
| 379 | return coderSfixed64 |
| 380 | } |
| 381 | case pref.Fixed64Kind: |
| 382 | if ft.Kind() == reflect.Uint64 { |
| 383 | return coderFixed64 |
| 384 | } |
| 385 | case pref.DoubleKind: |
| 386 | if ft.Kind() == reflect.Float64 { |
| 387 | return coderDouble |
| 388 | } |
| 389 | case pref.StringKind: |
| 390 | if fd.Syntax() == pref.Proto3 && ft.Kind() == reflect.String { |
| 391 | return coderStringValidateUTF8 |
| 392 | } |
| 393 | if ft.Kind() == reflect.String { |
| 394 | return coderString |
| 395 | } |
| 396 | if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 { |
| 397 | return coderBytes |
| 398 | } |
| 399 | case pref.BytesKind: |
| 400 | if ft.Kind() == reflect.String { |
| 401 | return coderString |
| 402 | } |
| 403 | if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 { |
| 404 | return coderBytes |
| 405 | } |
| 406 | } |
| 407 | } |
| 408 | panic(fmt.Errorf("invalid type: no encoder for %v %v %v/%v", fd.FullName(), fd.Cardinality(), fd.Kind(), ft)) |
| 409 | } |
| 410 | |
| 411 | // encoderFuncsForValue returns interface{} value functions for a field, used for |
| 412 | // extension values and map encoding. |
| 413 | func encoderFuncsForValue(fd pref.FieldDescriptor, ft reflect.Type) ifaceCoderFuncs { |
| 414 | switch { |
| 415 | case fd.Cardinality() == pref.Repeated && !fd.IsPacked(): |
| 416 | if ft.Kind() != reflect.Ptr || ft.Elem().Kind() != reflect.Slice { |
| 417 | break |
| 418 | } |
| 419 | ft := ft.Elem().Elem() |
| 420 | switch fd.Kind() { |
| 421 | case pref.BoolKind: |
| 422 | if ft.Kind() == reflect.Bool { |
| 423 | return coderBoolSliceIface |
| 424 | } |
| 425 | case pref.EnumKind: |
| 426 | if ft.Kind() == reflect.Int32 { |
| 427 | return coderEnumSliceIface |
| 428 | } |
| 429 | case pref.Int32Kind: |
| 430 | if ft.Kind() == reflect.Int32 { |
| 431 | return coderInt32SliceIface |
| 432 | } |
| 433 | case pref.Sint32Kind: |
| 434 | if ft.Kind() == reflect.Int32 { |
| 435 | return coderSint32SliceIface |
| 436 | } |
| 437 | case pref.Uint32Kind: |
| 438 | if ft.Kind() == reflect.Uint32 { |
| 439 | return coderUint32SliceIface |
| 440 | } |
| 441 | case pref.Int64Kind: |
| 442 | if ft.Kind() == reflect.Int64 { |
| 443 | return coderInt64SliceIface |
| 444 | } |
| 445 | case pref.Sint64Kind: |
| 446 | if ft.Kind() == reflect.Int64 { |
| 447 | return coderSint64SliceIface |
| 448 | } |
| 449 | case pref.Uint64Kind: |
| 450 | if ft.Kind() == reflect.Uint64 { |
| 451 | return coderUint64SliceIface |
| 452 | } |
| 453 | case pref.Sfixed32Kind: |
| 454 | if ft.Kind() == reflect.Int32 { |
| 455 | return coderSfixed32SliceIface |
| 456 | } |
| 457 | case pref.Fixed32Kind: |
| 458 | if ft.Kind() == reflect.Uint32 { |
| 459 | return coderFixed32SliceIface |
| 460 | } |
| 461 | case pref.FloatKind: |
| 462 | if ft.Kind() == reflect.Float32 { |
| 463 | return coderFloatSliceIface |
| 464 | } |
| 465 | case pref.Sfixed64Kind: |
| 466 | if ft.Kind() == reflect.Int64 { |
| 467 | return coderSfixed64SliceIface |
| 468 | } |
| 469 | case pref.Fixed64Kind: |
| 470 | if ft.Kind() == reflect.Uint64 { |
| 471 | return coderFixed64SliceIface |
| 472 | } |
| 473 | case pref.DoubleKind: |
| 474 | if ft.Kind() == reflect.Float64 { |
| 475 | return coderDoubleSliceIface |
| 476 | } |
| 477 | case pref.StringKind: |
| 478 | if ft.Kind() == reflect.String { |
| 479 | return coderStringSliceIface |
| 480 | } |
| 481 | if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 { |
| 482 | return coderBytesSliceIface |
| 483 | } |
| 484 | case pref.BytesKind: |
| 485 | if ft.Kind() == reflect.String { |
| 486 | return coderStringSliceIface |
| 487 | } |
| 488 | if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 { |
| 489 | return coderBytesSliceIface |
| 490 | } |
| 491 | case pref.MessageKind: |
| 492 | return coderMessageSliceIface |
| 493 | case pref.GroupKind: |
| 494 | return coderGroupSliceIface |
| 495 | } |
| 496 | case fd.Cardinality() == pref.Repeated && fd.IsPacked(): |
| 497 | default: |
| 498 | switch fd.Kind() { |
| 499 | case pref.BoolKind: |
| 500 | if ft.Kind() == reflect.Bool { |
| 501 | return coderBoolIface |
| 502 | } |
| 503 | case pref.EnumKind: |
| 504 | if ft.Kind() == reflect.Int32 { |
| 505 | return coderEnumIface |
| 506 | } |
| 507 | case pref.Int32Kind: |
| 508 | if ft.Kind() == reflect.Int32 { |
| 509 | return coderInt32Iface |
| 510 | } |
| 511 | case pref.Sint32Kind: |
| 512 | if ft.Kind() == reflect.Int32 { |
| 513 | return coderSint32Iface |
| 514 | } |
| 515 | case pref.Uint32Kind: |
| 516 | if ft.Kind() == reflect.Uint32 { |
| 517 | return coderUint32Iface |
| 518 | } |
| 519 | case pref.Int64Kind: |
| 520 | if ft.Kind() == reflect.Int64 { |
| 521 | return coderInt64Iface |
| 522 | } |
| 523 | case pref.Sint64Kind: |
| 524 | if ft.Kind() == reflect.Int64 { |
| 525 | return coderSint64Iface |
| 526 | } |
| 527 | case pref.Uint64Kind: |
| 528 | if ft.Kind() == reflect.Uint64 { |
| 529 | return coderUint64Iface |
| 530 | } |
| 531 | case pref.Sfixed32Kind: |
| 532 | if ft.Kind() == reflect.Int32 { |
| 533 | return coderSfixed32Iface |
| 534 | } |
| 535 | case pref.Fixed32Kind: |
| 536 | if ft.Kind() == reflect.Uint32 { |
| 537 | return coderFixed32Iface |
| 538 | } |
| 539 | case pref.FloatKind: |
| 540 | if ft.Kind() == reflect.Float32 { |
| 541 | return coderFloatIface |
| 542 | } |
| 543 | case pref.Sfixed64Kind: |
| 544 | if ft.Kind() == reflect.Int64 { |
| 545 | return coderSfixed64Iface |
| 546 | } |
| 547 | case pref.Fixed64Kind: |
| 548 | if ft.Kind() == reflect.Uint64 { |
| 549 | return coderFixed64Iface |
| 550 | } |
| 551 | case pref.DoubleKind: |
| 552 | if ft.Kind() == reflect.Float64 { |
| 553 | return coderDoubleIface |
| 554 | } |
| 555 | case pref.StringKind: |
| 556 | if fd.Syntax() == pref.Proto3 && ft.Kind() == reflect.String { |
| 557 | return coderStringIfaceValidateUTF8 |
| 558 | } |
| 559 | if ft.Kind() == reflect.String { |
| 560 | return coderStringIface |
| 561 | } |
| 562 | if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 { |
| 563 | return coderBytesIface |
| 564 | } |
| 565 | case pref.BytesKind: |
| 566 | if ft.Kind() == reflect.String { |
| 567 | return coderStringIface |
| 568 | } |
| 569 | if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 { |
| 570 | return coderBytesIface |
| 571 | } |
| 572 | case pref.MessageKind: |
| 573 | return coderMessageIface |
| 574 | case pref.GroupKind: |
| 575 | return coderGroupIface |
| 576 | } |
| 577 | } |
| 578 | panic(fmt.Errorf("invalid type: no encoder for %v %v %v/%v", fd.FullName(), fd.Cardinality(), fd.Kind(), ft)) |
| 579 | } |