Chih-Hung Hsieh | cfc3a23 | 2020-06-10 20:13:05 -0700 | [diff] [blame] | 1 | //! Implementations of `ProtobufType` for all types. |
| 2 | |
| 3 | use std::marker; |
| 4 | use std::mem; |
| 5 | |
| 6 | #[cfg(feature = "bytes")] |
Haibo Huang | d32e6ee | 2020-08-12 13:52:04 -0700 | [diff] [blame] | 7 | use bytes::Bytes; |
Chih-Hung Hsieh | cfc3a23 | 2020-06-10 20:13:05 -0700 | [diff] [blame] | 8 | |
David LeGare | 793d84b | 2022-03-02 16:21:10 +0000 | [diff] [blame] | 9 | #[cfg(feature = "bytes")] |
| 10 | use crate::chars::Chars; |
Joel Galenson | fa77f00 | 2021-04-02 11:32:01 -0700 | [diff] [blame] | 11 | use crate::coded_input_stream::CodedInputStream; |
| 12 | use crate::coded_output_stream::CodedOutputStream; |
Haibo Huang | d32e6ee | 2020-08-12 13:52:04 -0700 | [diff] [blame] | 13 | use crate::enums::ProtobufEnum; |
| 14 | use crate::error::ProtobufResult; |
| 15 | use crate::message::Message; |
Haibo Huang | d32e6ee | 2020-08-12 13:52:04 -0700 | [diff] [blame] | 16 | use crate::reflect::ProtobufValue; |
| 17 | use crate::rt; |
Haibo Huang | d32e6ee | 2020-08-12 13:52:04 -0700 | [diff] [blame] | 18 | use crate::unknown::UnknownValues; |
| 19 | use crate::wire_format::WireType; |
| 20 | use crate::zigzag::decode_zig_zag_32; |
| 21 | use crate::zigzag::decode_zig_zag_64; |
Chih-Hung Hsieh | cfc3a23 | 2020-06-10 20:13:05 -0700 | [diff] [blame] | 22 | |
| 23 | /// Protobuf elementary type as generic trait |
| 24 | pub trait ProtobufType { |
| 25 | /// Rust type of value |
| 26 | type Value: ProtobufValue + Clone + 'static; |
| 27 | |
| 28 | /// Wire type when writing to stream |
| 29 | fn wire_type() -> WireType; |
| 30 | |
| 31 | /// Read value from `CodedInputStream` |
| 32 | fn read(is: &mut CodedInputStream) -> ProtobufResult<Self::Value>; |
| 33 | |
| 34 | /// Compute wire size |
| 35 | fn compute_size(value: &Self::Value) -> u32; |
| 36 | |
| 37 | /// Get value from `UnknownValues` |
| 38 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<Self::Value>; |
| 39 | |
| 40 | /// Compute size adding length prefix if wire type is length delimited |
| 41 | /// (i. e. string, bytes, message) |
| 42 | fn compute_size_with_length_delimiter(value: &Self::Value) -> u32 { |
| 43 | let size = Self::compute_size(value); |
| 44 | if Self::wire_type() == WireType::WireTypeLengthDelimited { |
| 45 | rt::compute_raw_varint32_size(size) + size |
| 46 | } else { |
| 47 | size |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | /// Get previously computed size |
| 52 | #[inline] |
| 53 | fn get_cached_size(value: &Self::Value) -> u32 { |
| 54 | Self::compute_size(value) |
| 55 | } |
| 56 | |
| 57 | /// Get previously cached size with length prefix |
| 58 | #[inline] |
| 59 | fn get_cached_size_with_length_delimiter(value: &Self::Value) -> u32 { |
| 60 | let size = Self::get_cached_size(value); |
| 61 | if Self::wire_type() == WireType::WireTypeLengthDelimited { |
| 62 | rt::compute_raw_varint32_size(size) + size |
| 63 | } else { |
| 64 | size |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | /// Write a value with previously cached size |
| 69 | fn write_with_cached_size( |
| 70 | field_number: u32, |
| 71 | value: &Self::Value, |
| 72 | os: &mut CodedOutputStream, |
| 73 | ) -> ProtobufResult<()>; |
| 74 | } |
| 75 | |
| 76 | /// `float` |
| 77 | pub struct ProtobufTypeFloat; |
| 78 | /// `double` |
| 79 | pub struct ProtobufTypeDouble; |
| 80 | /// `uint32` |
| 81 | pub struct ProtobufTypeInt32; |
| 82 | /// `int64` |
| 83 | pub struct ProtobufTypeInt64; |
| 84 | /// `uint32` |
| 85 | pub struct ProtobufTypeUint32; |
| 86 | /// `uint64` |
| 87 | pub struct ProtobufTypeUint64; |
| 88 | /// `sint32` |
| 89 | pub struct ProtobufTypeSint32; |
| 90 | /// `sint64` |
| 91 | pub struct ProtobufTypeSint64; |
| 92 | /// `fixed32` |
| 93 | pub struct ProtobufTypeFixed32; |
| 94 | /// `fixed64` |
| 95 | pub struct ProtobufTypeFixed64; |
| 96 | /// `sfixed32` |
| 97 | pub struct ProtobufTypeSfixed32; |
| 98 | /// `sfixed64` |
| 99 | pub struct ProtobufTypeSfixed64; |
| 100 | /// `bool` |
| 101 | pub struct ProtobufTypeBool; |
| 102 | /// `string` |
| 103 | pub struct ProtobufTypeString; |
| 104 | /// `bytes` |
| 105 | pub struct ProtobufTypeBytes; |
| 106 | /// Something which should be deleted |
| 107 | pub struct ProtobufTypeChars; |
| 108 | |
| 109 | /// `bytes` as [`Bytes`](bytes::Bytes) |
| 110 | #[cfg(feature = "bytes")] |
| 111 | pub struct ProtobufTypeCarllercheBytes; |
| 112 | /// `string` as [`Chars`](crate::Chars) |
| 113 | #[cfg(feature = "bytes")] |
| 114 | pub struct ProtobufTypeCarllercheChars; |
| 115 | |
| 116 | /// `enum` |
| 117 | pub struct ProtobufTypeEnum<E: ProtobufEnum>(marker::PhantomData<E>); |
| 118 | /// `message` |
| 119 | pub struct ProtobufTypeMessage<M: Message>(marker::PhantomData<M>); |
| 120 | |
| 121 | impl ProtobufType for ProtobufTypeFloat { |
| 122 | type Value = f32; |
| 123 | |
| 124 | fn wire_type() -> WireType { |
| 125 | WireType::WireTypeFixed32 |
| 126 | } |
| 127 | |
| 128 | fn read(is: &mut CodedInputStream) -> ProtobufResult<f32> { |
| 129 | is.read_float() |
| 130 | } |
| 131 | |
| 132 | fn compute_size(_value: &f32) -> u32 { |
| 133 | 4 |
| 134 | } |
| 135 | |
| 136 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<f32> { |
| 137 | unknown_values |
| 138 | .fixed32 |
| 139 | .iter() |
| 140 | .rev() |
| 141 | .next() |
| 142 | .map(|&bits| unsafe { mem::transmute::<u32, f32>(bits) }) |
| 143 | } |
| 144 | |
| 145 | fn write_with_cached_size( |
| 146 | field_number: u32, |
| 147 | value: &f32, |
| 148 | os: &mut CodedOutputStream, |
| 149 | ) -> ProtobufResult<()> { |
| 150 | os.write_float(field_number, *value) |
| 151 | } |
| 152 | } |
| 153 | |
| 154 | impl ProtobufType for ProtobufTypeDouble { |
| 155 | type Value = f64; |
| 156 | |
| 157 | fn wire_type() -> WireType { |
| 158 | WireType::WireTypeFixed64 |
| 159 | } |
| 160 | |
| 161 | fn read(is: &mut CodedInputStream) -> ProtobufResult<f64> { |
| 162 | is.read_double() |
| 163 | } |
| 164 | |
| 165 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<f64> { |
| 166 | unknown_values |
| 167 | .fixed64 |
| 168 | .iter() |
| 169 | .rev() |
| 170 | .next() |
| 171 | .map(|&bits| unsafe { mem::transmute::<u64, f64>(bits) }) |
| 172 | } |
| 173 | |
| 174 | fn compute_size(_value: &f64) -> u32 { |
| 175 | 8 |
| 176 | } |
| 177 | |
| 178 | fn write_with_cached_size( |
| 179 | field_number: u32, |
| 180 | value: &f64, |
| 181 | os: &mut CodedOutputStream, |
| 182 | ) -> ProtobufResult<()> { |
| 183 | os.write_double(field_number, *value) |
| 184 | } |
| 185 | } |
| 186 | |
| 187 | impl ProtobufType for ProtobufTypeInt32 { |
| 188 | type Value = i32; |
| 189 | |
| 190 | fn wire_type() -> WireType { |
| 191 | WireType::WireTypeVarint |
| 192 | } |
| 193 | |
| 194 | fn read(is: &mut CodedInputStream) -> ProtobufResult<i32> { |
| 195 | is.read_int32() |
| 196 | } |
| 197 | |
| 198 | fn compute_size(value: &i32) -> u32 { |
| 199 | // See also: https://github.com/protocolbuffers/protobuf/blob/bd00671b924310c0353a730bf8fa77c44e0a9c72/src/google/protobuf/io/coded_stream.h#L1300-L1306 |
| 200 | if *value < 0 { |
| 201 | return 10; |
| 202 | } |
| 203 | rt::compute_raw_varint32_size(*value as u32) |
| 204 | } |
| 205 | |
| 206 | fn write_with_cached_size( |
| 207 | field_number: u32, |
| 208 | value: &i32, |
| 209 | os: &mut CodedOutputStream, |
| 210 | ) -> ProtobufResult<()> { |
| 211 | os.write_int32(field_number, *value) |
| 212 | } |
| 213 | |
| 214 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<i32> { |
| 215 | unknown_values.varint.iter().rev().next().map(|&v| v as i32) |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | impl ProtobufType for ProtobufTypeInt64 { |
| 220 | type Value = i64; |
| 221 | |
| 222 | fn wire_type() -> WireType { |
| 223 | WireType::WireTypeVarint |
| 224 | } |
| 225 | |
| 226 | fn read(is: &mut CodedInputStream) -> ProtobufResult<i64> { |
| 227 | is.read_int64() |
| 228 | } |
| 229 | |
| 230 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<i64> { |
| 231 | unknown_values.varint.iter().rev().next().map(|&v| v as i64) |
| 232 | } |
| 233 | |
| 234 | fn compute_size(value: &i64) -> u32 { |
| 235 | rt::compute_raw_varint64_size(*value as u64) |
| 236 | } |
| 237 | |
| 238 | fn write_with_cached_size( |
| 239 | field_number: u32, |
| 240 | value: &i64, |
| 241 | os: &mut CodedOutputStream, |
| 242 | ) -> ProtobufResult<()> { |
| 243 | os.write_int64(field_number, *value) |
| 244 | } |
| 245 | } |
| 246 | |
| 247 | impl ProtobufType for ProtobufTypeUint32 { |
| 248 | type Value = u32; |
| 249 | |
| 250 | fn wire_type() -> WireType { |
| 251 | WireType::WireTypeVarint |
| 252 | } |
| 253 | |
| 254 | fn read(is: &mut CodedInputStream) -> ProtobufResult<u32> { |
| 255 | is.read_uint32() |
| 256 | } |
| 257 | |
| 258 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<u32> { |
| 259 | unknown_values.varint.iter().rev().next().map(|&v| v as u32) |
| 260 | } |
| 261 | |
| 262 | fn compute_size(value: &u32) -> u32 { |
| 263 | rt::compute_raw_varint32_size(*value) |
| 264 | } |
| 265 | |
| 266 | fn write_with_cached_size( |
| 267 | field_number: u32, |
| 268 | value: &u32, |
| 269 | os: &mut CodedOutputStream, |
| 270 | ) -> ProtobufResult<()> { |
| 271 | os.write_uint32(field_number, *value) |
| 272 | } |
| 273 | } |
| 274 | |
| 275 | impl ProtobufType for ProtobufTypeUint64 { |
| 276 | type Value = u64; |
| 277 | |
| 278 | fn wire_type() -> WireType { |
| 279 | WireType::WireTypeVarint |
| 280 | } |
| 281 | |
| 282 | fn read(is: &mut CodedInputStream) -> ProtobufResult<u64> { |
| 283 | is.read_uint64() |
| 284 | } |
| 285 | |
| 286 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<u64> { |
| 287 | unknown_values.varint.iter().cloned().rev().next() |
| 288 | } |
| 289 | |
| 290 | fn compute_size(value: &u64) -> u32 { |
| 291 | rt::compute_raw_varint64_size(*value) |
| 292 | } |
| 293 | |
| 294 | fn write_with_cached_size( |
| 295 | field_number: u32, |
| 296 | value: &u64, |
| 297 | os: &mut CodedOutputStream, |
| 298 | ) -> ProtobufResult<()> { |
| 299 | os.write_uint64(field_number, *value) |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | impl ProtobufType for ProtobufTypeSint32 { |
| 304 | type Value = i32; |
| 305 | |
| 306 | fn wire_type() -> WireType { |
| 307 | WireType::WireTypeVarint |
| 308 | } |
| 309 | |
| 310 | fn read(is: &mut CodedInputStream) -> ProtobufResult<i32> { |
| 311 | is.read_sint32() |
| 312 | } |
| 313 | |
| 314 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<i32> { |
| 315 | ProtobufTypeUint32::get_from_unknown(unknown_values).map(decode_zig_zag_32) |
| 316 | } |
| 317 | |
| 318 | fn compute_size(value: &i32) -> u32 { |
| 319 | rt::value_varint_zigzag_size_no_tag(*value) |
| 320 | } |
| 321 | |
| 322 | fn write_with_cached_size( |
| 323 | field_number: u32, |
| 324 | value: &i32, |
| 325 | os: &mut CodedOutputStream, |
| 326 | ) -> ProtobufResult<()> { |
| 327 | os.write_sint32(field_number, *value) |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | impl ProtobufType for ProtobufTypeSint64 { |
| 332 | type Value = i64; |
| 333 | |
| 334 | fn wire_type() -> WireType { |
| 335 | WireType::WireTypeVarint |
| 336 | } |
| 337 | |
| 338 | fn read(is: &mut CodedInputStream) -> ProtobufResult<i64> { |
| 339 | is.read_sint64() |
| 340 | } |
| 341 | |
| 342 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<i64> { |
| 343 | ProtobufTypeUint64::get_from_unknown(unknown_values).map(decode_zig_zag_64) |
| 344 | } |
| 345 | |
| 346 | fn compute_size(value: &i64) -> u32 { |
| 347 | rt::value_varint_zigzag_size_no_tag(*value) |
| 348 | } |
| 349 | |
| 350 | fn write_with_cached_size( |
| 351 | field_number: u32, |
| 352 | value: &i64, |
| 353 | os: &mut CodedOutputStream, |
| 354 | ) -> ProtobufResult<()> { |
| 355 | os.write_sint64(field_number, *value) |
| 356 | } |
| 357 | } |
| 358 | |
| 359 | impl ProtobufType for ProtobufTypeFixed32 { |
| 360 | type Value = u32; |
| 361 | |
| 362 | fn wire_type() -> WireType { |
| 363 | WireType::WireTypeFixed32 |
| 364 | } |
| 365 | |
| 366 | fn read(is: &mut CodedInputStream) -> ProtobufResult<u32> { |
| 367 | is.read_fixed32() |
| 368 | } |
| 369 | |
| 370 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<u32> { |
| 371 | unknown_values.fixed32.iter().cloned().rev().next() |
| 372 | } |
| 373 | |
| 374 | fn compute_size(_value: &u32) -> u32 { |
| 375 | 4 |
| 376 | } |
| 377 | |
| 378 | fn write_with_cached_size( |
| 379 | field_number: u32, |
| 380 | value: &u32, |
| 381 | os: &mut CodedOutputStream, |
| 382 | ) -> ProtobufResult<()> { |
| 383 | os.write_fixed32(field_number, *value) |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | impl ProtobufType for ProtobufTypeFixed64 { |
| 388 | type Value = u64; |
| 389 | |
| 390 | fn wire_type() -> WireType { |
| 391 | WireType::WireTypeFixed64 |
| 392 | } |
| 393 | |
| 394 | fn read(is: &mut CodedInputStream) -> ProtobufResult<u64> { |
| 395 | is.read_fixed64() |
| 396 | } |
| 397 | |
| 398 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<u64> { |
| 399 | unknown_values.fixed64.iter().cloned().rev().next() |
| 400 | } |
| 401 | |
| 402 | fn compute_size(_value: &u64) -> u32 { |
| 403 | 8 |
| 404 | } |
| 405 | |
| 406 | fn write_with_cached_size( |
| 407 | field_number: u32, |
| 408 | value: &u64, |
| 409 | os: &mut CodedOutputStream, |
| 410 | ) -> ProtobufResult<()> { |
| 411 | os.write_fixed64(field_number, *value) |
| 412 | } |
| 413 | } |
| 414 | |
| 415 | impl ProtobufType for ProtobufTypeSfixed32 { |
| 416 | type Value = i32; |
| 417 | |
| 418 | fn wire_type() -> WireType { |
| 419 | WireType::WireTypeFixed32 |
| 420 | } |
| 421 | |
| 422 | fn read(is: &mut CodedInputStream) -> ProtobufResult<i32> { |
| 423 | is.read_sfixed32() |
| 424 | } |
| 425 | |
| 426 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<i32> { |
| 427 | ProtobufTypeFixed32::get_from_unknown(unknown_values).map(|u| u as i32) |
| 428 | } |
| 429 | |
| 430 | fn compute_size(_value: &i32) -> u32 { |
| 431 | 4 |
| 432 | } |
| 433 | |
| 434 | fn write_with_cached_size( |
| 435 | field_number: u32, |
| 436 | value: &i32, |
| 437 | os: &mut CodedOutputStream, |
| 438 | ) -> ProtobufResult<()> { |
| 439 | os.write_sfixed32(field_number, *value) |
| 440 | } |
| 441 | } |
| 442 | |
| 443 | impl ProtobufType for ProtobufTypeSfixed64 { |
| 444 | type Value = i64; |
| 445 | |
| 446 | fn wire_type() -> WireType { |
| 447 | WireType::WireTypeFixed64 |
| 448 | } |
| 449 | |
| 450 | fn read(is: &mut CodedInputStream) -> ProtobufResult<i64> { |
| 451 | is.read_sfixed64() |
| 452 | } |
| 453 | |
| 454 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<i64> { |
| 455 | ProtobufTypeFixed64::get_from_unknown(unknown_values).map(|u| u as i64) |
| 456 | } |
| 457 | |
| 458 | fn compute_size(_value: &i64) -> u32 { |
| 459 | 8 |
| 460 | } |
| 461 | |
| 462 | fn write_with_cached_size( |
| 463 | field_number: u32, |
| 464 | value: &i64, |
| 465 | os: &mut CodedOutputStream, |
| 466 | ) -> ProtobufResult<()> { |
| 467 | os.write_sfixed64(field_number, *value) |
| 468 | } |
| 469 | } |
| 470 | |
| 471 | impl ProtobufType for ProtobufTypeBool { |
| 472 | type Value = bool; |
| 473 | |
| 474 | fn wire_type() -> WireType { |
| 475 | WireType::WireTypeVarint |
| 476 | } |
| 477 | |
| 478 | fn read(is: &mut CodedInputStream) -> ProtobufResult<bool> { |
| 479 | is.read_bool() |
| 480 | } |
| 481 | |
| 482 | fn get_from_unknown(unknown: &UnknownValues) -> Option<bool> { |
| 483 | unknown.varint.iter().rev().next().map(|&v| v != 0) |
| 484 | } |
| 485 | |
| 486 | fn compute_size(_value: &bool) -> u32 { |
| 487 | 1 |
| 488 | } |
| 489 | |
| 490 | fn write_with_cached_size( |
| 491 | field_number: u32, |
| 492 | value: &bool, |
| 493 | os: &mut CodedOutputStream, |
| 494 | ) -> ProtobufResult<()> { |
| 495 | os.write_bool(field_number, *value) |
| 496 | } |
| 497 | } |
| 498 | |
| 499 | impl ProtobufType for ProtobufTypeString { |
| 500 | type Value = String; |
| 501 | |
| 502 | fn wire_type() -> WireType { |
| 503 | WireType::WireTypeLengthDelimited |
| 504 | } |
| 505 | |
| 506 | fn read(is: &mut CodedInputStream) -> ProtobufResult<String> { |
| 507 | is.read_string() |
| 508 | } |
| 509 | |
| 510 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<String> { |
| 511 | // TODO: should not panic |
| 512 | ProtobufTypeBytes::get_from_unknown(unknown_values) |
| 513 | .map(|b| String::from_utf8(b).expect("not a valid string")) |
| 514 | } |
| 515 | |
| 516 | fn compute_size(value: &String) -> u32 { |
| 517 | value.len() as u32 |
| 518 | } |
| 519 | |
| 520 | fn write_with_cached_size( |
| 521 | field_number: u32, |
| 522 | value: &String, |
| 523 | os: &mut CodedOutputStream, |
| 524 | ) -> ProtobufResult<()> { |
| 525 | os.write_string(field_number, &value) |
| 526 | } |
| 527 | } |
| 528 | |
| 529 | impl ProtobufType for ProtobufTypeBytes { |
| 530 | type Value = Vec<u8>; |
| 531 | |
| 532 | fn wire_type() -> WireType { |
| 533 | WireType::WireTypeLengthDelimited |
| 534 | } |
| 535 | |
| 536 | fn read(is: &mut CodedInputStream) -> ProtobufResult<Vec<u8>> { |
| 537 | is.read_bytes() |
| 538 | } |
| 539 | |
| 540 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<Vec<u8>> { |
| 541 | unknown_values.length_delimited.iter().cloned().rev().next() |
| 542 | } |
| 543 | |
| 544 | fn compute_size(value: &Vec<u8>) -> u32 { |
| 545 | value.len() as u32 |
| 546 | } |
| 547 | |
| 548 | fn write_with_cached_size( |
| 549 | field_number: u32, |
| 550 | value: &Vec<u8>, |
| 551 | os: &mut CodedOutputStream, |
| 552 | ) -> ProtobufResult<()> { |
| 553 | os.write_bytes(field_number, &value) |
| 554 | } |
| 555 | } |
| 556 | |
| 557 | #[cfg(feature = "bytes")] |
| 558 | impl ProtobufType for ProtobufTypeCarllercheBytes { |
| 559 | type Value = Bytes; |
| 560 | |
| 561 | fn wire_type() -> WireType { |
| 562 | ProtobufTypeBytes::wire_type() |
| 563 | } |
| 564 | |
| 565 | fn read(is: &mut CodedInputStream) -> ProtobufResult<Self::Value> { |
| 566 | is.read_carllerche_bytes() |
| 567 | } |
| 568 | |
| 569 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<Bytes> { |
| 570 | ProtobufTypeBytes::get_from_unknown(unknown_values).map(Bytes::from) |
| 571 | } |
| 572 | |
| 573 | fn compute_size(value: &Bytes) -> u32 { |
| 574 | value.len() as u32 |
| 575 | } |
| 576 | |
| 577 | fn write_with_cached_size( |
| 578 | field_number: u32, |
| 579 | value: &Bytes, |
| 580 | os: &mut CodedOutputStream, |
| 581 | ) -> ProtobufResult<()> { |
| 582 | os.write_bytes(field_number, &value) |
| 583 | } |
| 584 | } |
| 585 | |
| 586 | #[cfg(feature = "bytes")] |
| 587 | impl ProtobufType for ProtobufTypeCarllercheChars { |
| 588 | type Value = Chars; |
| 589 | |
| 590 | fn wire_type() -> WireType { |
| 591 | ProtobufTypeBytes::wire_type() |
| 592 | } |
| 593 | |
| 594 | fn read(is: &mut CodedInputStream) -> ProtobufResult<Self::Value> { |
| 595 | is.read_carllerche_chars() |
| 596 | } |
| 597 | |
| 598 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<Chars> { |
| 599 | ProtobufTypeString::get_from_unknown(unknown_values).map(Chars::from) |
| 600 | } |
| 601 | |
| 602 | fn compute_size(value: &Chars) -> u32 { |
| 603 | value.len() as u32 |
| 604 | } |
| 605 | |
| 606 | fn write_with_cached_size( |
| 607 | field_number: u32, |
| 608 | value: &Chars, |
| 609 | os: &mut CodedOutputStream, |
| 610 | ) -> ProtobufResult<()> { |
| 611 | os.write_string(field_number, &value) |
| 612 | } |
| 613 | } |
| 614 | |
| 615 | impl<E: ProtobufEnum + ProtobufValue> ProtobufType for ProtobufTypeEnum<E> { |
| 616 | type Value = E; |
| 617 | |
| 618 | fn wire_type() -> WireType { |
| 619 | WireType::WireTypeVarint |
| 620 | } |
| 621 | |
| 622 | fn read(is: &mut CodedInputStream) -> ProtobufResult<E> { |
| 623 | is.read_enum() |
| 624 | } |
| 625 | |
| 626 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<E> { |
| 627 | // TODO: do not panic |
| 628 | ProtobufTypeInt32::get_from_unknown(unknown_values) |
| 629 | .map(|i| E::from_i32(i).expect("not a valid enum value")) |
| 630 | } |
| 631 | |
| 632 | fn compute_size(value: &E) -> u32 { |
| 633 | rt::compute_raw_varint32_size(value.value() as u32) // TODO: wrap |
| 634 | } |
| 635 | |
| 636 | fn write_with_cached_size( |
| 637 | field_number: u32, |
| 638 | value: &E, |
| 639 | os: &mut CodedOutputStream, |
| 640 | ) -> ProtobufResult<()> { |
| 641 | os.write_enum_obj(field_number, *value) |
| 642 | } |
| 643 | } |
| 644 | |
| 645 | impl<M: Message + Clone + ProtobufValue> ProtobufType for ProtobufTypeMessage<M> { |
| 646 | type Value = M; |
| 647 | |
| 648 | fn wire_type() -> WireType { |
| 649 | WireType::WireTypeLengthDelimited |
| 650 | } |
| 651 | |
| 652 | fn read(is: &mut CodedInputStream) -> ProtobufResult<M> { |
| 653 | is.read_message() |
| 654 | } |
| 655 | |
| 656 | fn get_from_unknown(unknown_values: &UnknownValues) -> Option<M> { |
| 657 | // TODO: do not panic |
| 658 | unknown_values |
| 659 | .length_delimited |
| 660 | .iter() |
| 661 | .rev() |
| 662 | .next() |
Haibo Huang | 914311b | 2021-01-07 18:06:15 -0800 | [diff] [blame] | 663 | .map(|bytes| M::parse_from_bytes(bytes).expect("cannot parse message")) |
Chih-Hung Hsieh | cfc3a23 | 2020-06-10 20:13:05 -0700 | [diff] [blame] | 664 | } |
| 665 | |
| 666 | fn compute_size(value: &M) -> u32 { |
| 667 | value.compute_size() |
| 668 | } |
| 669 | |
| 670 | fn get_cached_size(value: &M) -> u32 { |
| 671 | value.get_cached_size() |
| 672 | } |
| 673 | |
| 674 | fn write_with_cached_size( |
| 675 | field_number: u32, |
| 676 | value: &Self::Value, |
| 677 | os: &mut CodedOutputStream, |
| 678 | ) -> ProtobufResult<()> { |
| 679 | os.write_tag(field_number, WireType::WireTypeLengthDelimited)?; |
| 680 | os.write_raw_varint32(value.get_cached_size())?; |
| 681 | value.write_to_with_cached_sizes(os)?; |
| 682 | Ok(()) |
| 683 | } |
| 684 | } |