compiler/rustc_metadata/src/errors.rs

   1 use std::{
   2     io::Error,
   3     path::{Path, PathBuf},
   4 };
   5
   6 use rustc_errors::{error_code, ErrorGuaranteed, IntoDiagnostic};
   7 use rustc_macros::Diagnostic;
   8 use rustc_session::config;
   9 use rustc_span::{sym, Span, Symbol};
  10 use rustc_target::spec::{PanicStrategy, TargetTriple};
  11
  12 use crate::locator::CrateFlavor;
  13
  14 #[derive(Diagnostic)]
  15 #[diag(metadata::rlib_required)]
  16 pub struct RlibRequired {
  17     pub crate_name: Symbol,
  18 }
  19
  20 #[derive(Diagnostic)]
  21 #[diag(metadata::lib_required)]
  22 pub struct LibRequired<'a> {
  23     pub crate_name: Symbol,
  24     pub kind: &'a str,
  25 }
  26
  27 #[derive(Diagnostic)]
  28 #[diag(metadata::crate_dep_multiple)]
  29 #[help]
  30 pub struct CrateDepMultiple {
  31     pub crate_name: Symbol,
  32 }
  33
  34 #[derive(Diagnostic)]
  35 #[diag(metadata::two_panic_runtimes)]
  36 pub struct TwoPanicRuntimes {
  37     pub prev_name: Symbol,
  38     pub cur_name: Symbol,
  39 }
  40
  41 #[derive(Diagnostic)]
  42 #[diag(metadata::bad_panic_strategy)]
  43 pub struct BadPanicStrategy {
  44     pub runtime: Symbol,
  45     pub strategy: PanicStrategy,
  46 }
  47
  48 #[derive(Diagnostic)]
  49 #[diag(metadata::required_panic_strategy)]
  50 pub struct RequiredPanicStrategy {
  51     pub crate_name: Symbol,
  52     pub found_strategy: PanicStrategy,
  53     pub desired_strategy: PanicStrategy,
  54 }
  55
  56 #[derive(Diagnostic)]
  57 #[diag(metadata::incompatible_panic_in_drop_strategy)]
  58 pub struct IncompatiblePanicInDropStrategy {
  59     pub crate_name: Symbol,
  60     pub found_strategy: PanicStrategy,
  61     pub desired_strategy: PanicStrategy,
  62 }
  63
  64 #[derive(Diagnostic)]
  65 #[diag(metadata::multiple_names_in_link)]
  66 pub struct MultipleNamesInLink {
  67     #[primary_span]
  68     pub span: Span,
  69 }
  70
  71 #[derive(Diagnostic)]
  72 #[diag(metadata::multiple_kinds_in_link)]
  73 pub struct MultipleKindsInLink {
  74     #[primary_span]
  75     pub span: Span,
  76 }
  77
  78 #[derive(Diagnostic)]
  79 #[diag(metadata::link_name_form)]
  80 pub struct LinkNameForm {
  81     #[primary_span]
  82     pub span: Span,
  83 }
  84
  85 #[derive(Diagnostic)]
  86 #[diag(metadata::link_kind_form)]
  87 pub struct LinkKindForm {
  88     #[primary_span]
  89     pub span: Span,
  90 }
  91
  92 #[derive(Diagnostic)]
  93 #[diag(metadata::link_modifiers_form)]
  94 pub struct LinkModifiersForm {
  95     #[primary_span]
  96     pub span: Span,
  97 }
  98
  99 #[derive(Diagnostic)]
 100 #[diag(metadata::link_cfg_form)]
 101 pub struct LinkCfgForm {
 102     #[primary_span]
 103     pub span: Span,
 104 }
 105
 106 #[derive(Diagnostic)]
 107 #[diag(metadata::wasm_import_form)]
 108 pub struct WasmImportForm {
 109     #[primary_span]
 110     pub span: Span,
 111 }
 112
 113 #[derive(Diagnostic)]
 114 #[diag(metadata::empty_link_name, code = "E0454")]
 115 pub struct EmptyLinkName {
 116     #[primary_span]
 117     #[label]
 118     pub span: Span,
 119 }
 120
 121 #[derive(Diagnostic)]
 122 #[diag(metadata::link_framework_apple, code = "E0455")]
 123 pub struct LinkFrameworkApple {
 124     #[primary_span]
 125     pub span: Span,
 126 }
 127
 128 #[derive(Diagnostic)]
 129 #[diag(metadata::framework_only_windows, code = "E0455")]
 130 pub struct FrameworkOnlyWindows {
 131     #[primary_span]
 132     pub span: Span,
 133 }
 134
 135 #[derive(Diagnostic)]
 136 #[diag(metadata::unknown_link_kind, code = "E0458")]
 137 pub struct UnknownLinkKind<'a> {
 138     #[primary_span]
 139     #[label]
 140     pub span: Span,
 141     pub kind: &'a str,
 142 }
 143
 144 #[derive(Diagnostic)]
 145 #[diag(metadata::multiple_link_modifiers)]
 146 pub struct MultipleLinkModifiers {
 147     #[primary_span]
 148     pub span: Span,
 149 }
 150
 151 #[derive(Diagnostic)]
 152 #[diag(metadata::multiple_cfgs)]
 153 pub struct MultipleCfgs {
 154     #[primary_span]
 155     pub span: Span,
 156 }
 157
 158 #[derive(Diagnostic)]
 159 #[diag(metadata::link_cfg_single_predicate)]
 160 pub struct LinkCfgSinglePredicate {
 161     #[primary_span]
 162     pub span: Span,
 163 }
 164
 165 #[derive(Diagnostic)]
 166 #[diag(metadata::multiple_wasm_import)]
 167 pub struct MultipleWasmImport {
 168     #[primary_span]
 169     pub span: Span,
 170 }
 171
 172 #[derive(Diagnostic)]
 173 #[diag(metadata::unexpected_link_arg)]
 174 pub struct UnexpectedLinkArg {
 175     #[primary_span]
 176     pub span: Span,
 177 }
 178
 179 #[derive(Diagnostic)]
 180 #[diag(metadata::invalid_link_modifier)]
 181 pub struct InvalidLinkModifier {
 182     #[primary_span]
 183     pub span: Span,
 184 }
 185
 186 #[derive(Diagnostic)]
 187 #[diag(metadata::multiple_modifiers)]
 188 pub struct MultipleModifiers<'a> {
 189     #[primary_span]
 190     pub span: Span,
 191     pub modifier: &'a str,
 192 }
 193
 194 #[derive(Diagnostic)]
 195 #[diag(metadata::bundle_needs_static)]
 196 pub struct BundleNeedsStatic {
 197     #[primary_span]
 198     pub span: Span,
 199 }
 200
 201 #[derive(Diagnostic)]
 202 #[diag(metadata::whole_archive_needs_static)]
 203 pub struct WholeArchiveNeedsStatic {
 204     #[primary_span]
 205     pub span: Span,
 206 }
 207
 208 #[derive(Diagnostic)]
 209 #[diag(metadata::as_needed_compatibility)]
 210 pub struct AsNeededCompatibility {
 211     #[primary_span]
 212     pub span: Span,
 213 }
 214
 215 #[derive(Diagnostic)]
 216 #[diag(metadata::unknown_link_modifier)]
 217 pub struct UnknownLinkModifier<'a> {
 218     #[primary_span]
 219     pub span: Span,
 220     pub modifier: &'a str,
 221 }
 222
 223 #[derive(Diagnostic)]
 224 #[diag(metadata::incompatible_wasm_link)]
 225 pub struct IncompatibleWasmLink {
 226     #[primary_span]
 227     pub span: Span,
 228 }
 229
 230 #[derive(Diagnostic)]
 231 #[diag(metadata::link_requires_name, code = "E0459")]
 232 pub struct LinkRequiresName {
 233     #[primary_span]
 234     #[label]
 235     pub span: Span,
 236 }
 237
 238 #[derive(Diagnostic)]
 239 #[diag(metadata::raw_dylib_no_nul)]
 240 pub struct RawDylibNoNul {
 241     #[primary_span]
 242     pub span: Span,
 243 }
 244
 245 #[derive(Diagnostic)]
 246 #[diag(metadata::link_ordinal_raw_dylib)]
 247 pub struct LinkOrdinalRawDylib {
 248     #[primary_span]
 249     pub span: Span,
 250 }
 251
 252 #[derive(Diagnostic)]
 253 #[diag(metadata::lib_framework_apple)]
 254 pub struct LibFrameworkApple;
 255
 256 #[derive(Diagnostic)]
 257 #[diag(metadata::empty_renaming_target)]
 258 pub struct EmptyRenamingTarget<'a> {
 259     pub lib_name: &'a str,
 260 }
 261
 262 #[derive(Diagnostic)]
 263 #[diag(metadata::renaming_no_link)]
 264 pub struct RenamingNoLink<'a> {
 265     pub lib_name: &'a str,
 266 }
 267
 268 #[derive(Diagnostic)]
 269 #[diag(metadata::multiple_renamings)]
 270 pub struct MultipleRenamings<'a> {
 271     pub lib_name: &'a str,
 272 }
 273
 274 #[derive(Diagnostic)]
 275 #[diag(metadata::no_link_mod_override)]
 276 pub struct NoLinkModOverride {
 277     #[primary_span]
 278     pub span: Option<Span>,
 279 }
 280
 281 #[derive(Diagnostic)]
 282 #[diag(metadata::unsupported_abi_i686)]
 283 pub struct UnsupportedAbiI686 {
 284     #[primary_span]
 285     pub span: Span,
 286 }
 287
 288 #[derive(Diagnostic)]
 289 #[diag(metadata::unsupported_abi)]
 290 pub struct UnsupportedAbi {
 291     #[primary_span]
 292     pub span: Span,
 293 }
 294
 295 #[derive(Diagnostic)]
 296 #[diag(metadata::fail_create_file_encoder)]
 297 pub struct FailCreateFileEncoder {
 298     pub err: Error,
 299 }
 300
 301 #[derive(Diagnostic)]
 302 #[diag(metadata::fail_seek_file)]
 303 pub struct FailSeekFile {
 304     pub err: Error,
 305 }
 306
 307 #[derive(Diagnostic)]
 308 #[diag(metadata::fail_write_file)]
 309 pub struct FailWriteFile {
 310     pub err: Error,
 311 }
 312
 313 #[derive(Diagnostic)]
 314 #[diag(metadata::crate_not_panic_runtime)]
 315 pub struct CrateNotPanicRuntime {
 316     pub crate_name: Symbol,
 317 }
 318
 319 #[derive(Diagnostic)]
 320 #[diag(metadata::no_panic_strategy)]
 321 pub struct NoPanicStrategy {
 322     pub crate_name: Symbol,
 323     pub strategy: PanicStrategy,
 324 }
 325
 326 #[derive(Diagnostic)]
 327 #[diag(metadata::profiler_builtins_needs_core)]
 328 pub struct ProfilerBuiltinsNeedsCore;
 329
 330 #[derive(Diagnostic)]
 331 #[diag(metadata::not_profiler_runtime)]
 332 pub struct NotProfilerRuntime {
 333     pub crate_name: Symbol,
 334 }
 335
 336 #[derive(Diagnostic)]
 337 #[diag(metadata::no_multiple_global_alloc)]
 338 pub struct NoMultipleGlobalAlloc {
 339     #[primary_span]
 340     #[label]
 341     pub span2: Span,
 342     #[label(metadata::prev_global_alloc)]
 343     pub span1: Span,
 344 }
 345
 346 #[derive(Diagnostic)]
 347 #[diag(metadata::conflicting_global_alloc)]
 348 pub struct ConflictingGlobalAlloc {
 349     pub crate_name: Symbol,
 350     pub other_crate_name: Symbol,
 351 }
 352
 353 #[derive(Diagnostic)]
 354 #[diag(metadata::global_alloc_required)]
 355 pub struct GlobalAllocRequired;
 356
 357 #[derive(Diagnostic)]
 358 #[diag(metadata::no_transitive_needs_dep)]
 359 pub struct NoTransitiveNeedsDep<'a> {
 360     pub crate_name: Symbol,
 361     pub needs_crate_name: &'a str,
 362     pub deps_crate_name: Symbol,
 363 }
 364
 365 #[derive(Diagnostic)]
 366 #[diag(metadata::failed_write_error)]
 367 pub struct FailedWriteError {
 368     pub filename: PathBuf,
 369     pub err: Error,
 370 }
 371
 372 #[derive(Diagnostic)]
 373 #[diag(metadata::missing_native_library)]
 374 pub struct MissingNativeLibrary<'a> {
 375     libname: &'a str,
 376     #[subdiagnostic]
 377     suggest_name: Option<SuggestLibraryName<'a>>,
 378 }
 379
 380 impl<'a> MissingNativeLibrary<'a> {
 381     pub fn new(libname: &'a str, verbatim: bool) -> Self {
 382         // if it looks like the user has provided a complete filename rather just the bare lib name,
 383         // then provide a note that they might want to try trimming the name
 384         let suggested_name = if !verbatim {
 385             if let Some(libname) = libname.strip_prefix("lib") && let Some(libname) = libname.strip_suffix(".a") {
 386                 // this is a unix style filename so trim prefix & suffix
 387                 Some(libname)
 388             } else if let Some(libname) = libname.strip_suffix(".lib") {
 389                 // this is a Windows style filename so just trim the suffix
 390                 Some(libname)
 391             } else {
 392                 None
 393             }
 394         } else {
 395             None
 396         };
 397
 398         Self {
 399             libname,
 400             suggest_name: suggested_name
 401                 .map(|suggested_name| SuggestLibraryName { suggested_name }),
 402         }
 403     }
 404 }
 405
 406 #[derive(Subdiagnostic)]
 407 #[help(metadata::only_provide_library_name)]
 408 pub struct SuggestLibraryName<'a> {
 409     suggested_name: &'a str,
 410 }
 411
 412 #[derive(Diagnostic)]
 413 #[diag(metadata::failed_create_tempdir)]
 414 pub struct FailedCreateTempdir {
 415     pub err: Error,
 416 }
 417
 418 #[derive(Diagnostic)]
 419 #[diag(metadata::failed_create_file)]
 420 pub struct FailedCreateFile<'a> {
 421     pub filename: &'a Path,
 422     pub err: Error,
 423 }
 424
 425 #[derive(Diagnostic)]
 426 #[diag(metadata::failed_create_encoded_metadata)]
 427 pub struct FailedCreateEncodedMetadata {
 428     pub err: Error,
 429 }
 430
 431 #[derive(Diagnostic)]
 432 #[diag(metadata::non_ascii_name)]
 433 pub struct NonAsciiName {
 434     #[primary_span]
 435     pub span: Span,
 436     pub crate_name: Symbol,
 437 }
 438
 439 #[derive(Diagnostic)]
 440 #[diag(metadata::extern_location_not_exist)]
 441 pub struct ExternLocationNotExist<'a> {
 442     #[primary_span]
 443     pub span: Span,
 444     pub crate_name: Symbol,
 445     pub location: &'a Path,
 446 }
 447
 448 #[derive(Diagnostic)]
 449 #[diag(metadata::extern_location_not_file)]
 450 pub struct ExternLocationNotFile<'a> {
 451     #[primary_span]
 452     pub span: Span,
 453     pub crate_name: Symbol,
 454     pub location: &'a Path,
 455 }
 456
 457 pub(crate) struct MultipleCandidates {
 458     pub span: Span,
 459     pub flavor: CrateFlavor,
 460     pub crate_name: Symbol,
 461     pub candidates: Vec<PathBuf>,
 462 }
 463
 464 impl IntoDiagnostic<'_> for MultipleCandidates {
 465     fn into_diagnostic(
 466         self,
 467         handler: &'_ rustc_errors::Handler,
 468     ) -> rustc_errors::DiagnosticBuilder<'_, ErrorGuaranteed> {
 469         let mut diag = handler.struct_err(rustc_errors::fluent::metadata::multiple_candidates);
 470         diag.set_arg("crate_name", self.crate_name);
 471         diag.set_arg("flavor", self.flavor);
 472         diag.code(error_code!(E0465));
 473         diag.set_span(self.span);
 474         for (i, candidate) in self.candidates.iter().enumerate() {
 475             diag.span_note(self.span, &format!("candidate #{}: {}", i + 1, candidate.display()));
 476         }
 477         diag
 478     }
 479 }
 480
 481 #[derive(Diagnostic)]
 482 #[diag(metadata::multiple_matching_crates, code = "E0464")]
 483 #[note]
 484 pub struct MultipleMatchingCrates {
 485     #[primary_span]
 486     pub span: Span,
 487     pub crate_name: Symbol,
 488     pub candidates: String,
 489 }
 490
 491 #[derive(Diagnostic)]
 492 #[diag(metadata::symbol_conflicts_current, code = "E0519")]
 493 pub struct SymbolConflictsCurrent {
 494     #[primary_span]
 495     pub span: Span,
 496     pub crate_name: Symbol,
 497 }
 498
 499 #[derive(Diagnostic)]
 500 #[diag(metadata::symbol_conflicts_others, code = "E0523")]
 501 pub struct SymbolConflictsOthers {
 502     #[primary_span]
 503     pub span: Span,
 504     pub crate_name: Symbol,
 505 }
 506
 507 #[derive(Diagnostic)]
 508 #[diag(metadata::stable_crate_id_collision)]
 509 pub struct StableCrateIdCollision {
 510     #[primary_span]
 511     pub span: Span,
 512     pub crate_name0: Symbol,
 513     pub crate_name1: Symbol,
 514 }
 515
 516 #[derive(Diagnostic)]
 517 #[diag(metadata::dl_error)]
 518 pub struct DlError {
 519     #[primary_span]
 520     pub span: Span,
 521     pub err: String,
 522 }
 523
 524 #[derive(Diagnostic)]
 525 #[diag(metadata::newer_crate_version, code = "E0460")]
 526 #[note]
 527 #[note(metadata::found_crate_versions)]
 528 pub struct NewerCrateVersion {
 529     #[primary_span]
 530     pub span: Span,
 531     pub crate_name: Symbol,
 532     pub add_info: String,
 533     pub found_crates: String,
 534 }
 535
 536 #[derive(Diagnostic)]
 537 #[diag(metadata::no_crate_with_triple, code = "E0461")]
 538 #[note(metadata::found_crate_versions)]
 539 pub struct NoCrateWithTriple<'a> {
 540     #[primary_span]
 541     pub span: Span,
 542     pub crate_name: Symbol,
 543     pub locator_triple: &'a str,
 544     pub add_info: String,
 545     pub found_crates: String,
 546 }
 547
 548 #[derive(Diagnostic)]
 549 #[diag(metadata::found_staticlib, code = "E0462")]
 550 #[note(metadata::found_crate_versions)]
 551 #[help]
 552 pub struct FoundStaticlib {
 553     #[primary_span]
 554     pub span: Span,
 555     pub crate_name: Symbol,
 556     pub add_info: String,
 557     pub found_crates: String,
 558 }
 559
 560 #[derive(Diagnostic)]
 561 #[diag(metadata::incompatible_rustc, code = "E0514")]
 562 #[note(metadata::found_crate_versions)]
 563 #[help]
 564 pub struct IncompatibleRustc {
 565     #[primary_span]
 566     pub span: Span,
 567     pub crate_name: Symbol,
 568     pub add_info: String,
 569     pub found_crates: String,
 570     pub rustc_version: String,
 571 }
 572
 573 pub struct InvalidMetadataFiles {
 574     pub span: Span,
 575     pub crate_name: Symbol,
 576     pub add_info: String,
 577     pub crate_rejections: Vec<String>,
 578 }
 579
 580 impl IntoDiagnostic<'_> for InvalidMetadataFiles {
 581     fn into_diagnostic(
 582         self,
 583         handler: &'_ rustc_errors::Handler,
 584     ) -> rustc_errors::DiagnosticBuilder<'_, ErrorGuaranteed> {
 585         let mut diag = handler.struct_err(rustc_errors::fluent::metadata::invalid_meta_files);
 586         diag.set_arg("crate_name", self.crate_name);
 587         diag.set_arg("add_info", self.add_info);
 588         diag.code(error_code!(E0786));
 589         diag.set_span(self.span);
 590         for crate_rejection in self.crate_rejections {
 591             diag.note(crate_rejection);
 592         }
 593         diag
 594     }
 595 }
 596
 597 pub struct CannotFindCrate {
 598     pub span: Span,
 599     pub crate_name: Symbol,
 600     pub add_info: String,
 601     pub missing_core: bool,
 602     pub current_crate: String,
 603     pub is_nightly_build: bool,
 604     pub profiler_runtime: Symbol,
 605     pub locator_triple: TargetTriple,
 606 }
 607
 608 impl IntoDiagnostic<'_> for CannotFindCrate {
 609     fn into_diagnostic(
 610         self,
 611         handler: &'_ rustc_errors::Handler,
 612     ) -> rustc_errors::DiagnosticBuilder<'_, ErrorGuaranteed> {
 613         let mut diag = handler.struct_err(rustc_errors::fluent::metadata::cannot_find_crate);
 614         diag.set_arg("crate_name", self.crate_name);
 615         diag.set_arg("current_crate", self.current_crate);
 616         diag.set_arg("add_info", self.add_info);
 617         diag.set_arg("locator_triple", self.locator_triple.triple());
 618         diag.code(error_code!(E0463));
 619         diag.set_span(self.span);
 620         if (self.crate_name == sym::std || self.crate_name == sym::core)
 621             && self.locator_triple != TargetTriple::from_triple(config::host_triple())
 622         {
 623             if self.missing_core {
 624                 diag.note(rustc_errors::fluent::metadata::target_not_installed);
 625             } else {
 626                 diag.note(rustc_errors::fluent::metadata::target_no_std_support);
 627             }
 628             // NOTE: this suggests using rustup, even though the user may not have it installed.
 629             // That's because they could choose to install it; or this may give them a hint which
 630             // target they need to install from their distro.
 631             if self.missing_core {
 632                 diag.help(rustc_errors::fluent::metadata::consider_downloading_target);
 633             }
 634             // Suggest using #![no_std]. #[no_core] is unstable and not really supported anyway.
 635             // NOTE: this is a dummy span if `extern crate std` was injected by the compiler.
 636             // If it's not a dummy, that means someone added `extern crate std` explicitly and
 637             // `#![no_std]` won't help.
 638             if !self.missing_core && self.span.is_dummy() {
 639                 diag.note(rustc_errors::fluent::metadata::std_required);
 640             }
 641             if self.is_nightly_build {
 642                 diag.help(rustc_errors::fluent::metadata::consider_building_std);
 643             }
 644         } else if self.crate_name == self.profiler_runtime {
 645             diag.note(rustc_errors::fluent::metadata::compiler_missing_profiler);
 646         } else if self.crate_name.as_str().starts_with("rustc_") {
 647             diag.help(rustc_errors::fluent::metadata::install_missing_components);
 648         }
 649         diag.span_label(self.span, rustc_errors::fluent::metadata::cant_find_crate);
 650         diag
 651     }
 652 }
 653
 654 #[derive(Diagnostic)]
 655 #[diag(metadata::no_dylib_plugin, code = "E0457")]
 656 pub struct NoDylibPlugin {
 657     #[primary_span]
 658     pub span: Span,
 659     pub crate_name: Symbol,
 660 }
 661
 662 #[derive(Diagnostic)]
 663 #[diag(metadata::crate_location_unknown_type)]
 664 pub struct CrateLocationUnknownType<'a> {
 665     #[primary_span]
 666     pub span: Span,
 667     pub path: &'a Path,
 668 }
 669
 670 #[derive(Diagnostic)]
 671 #[diag(metadata::lib_filename_form)]
 672 pub struct LibFilenameForm<'a> {
 673     #[primary_span]
 674     pub span: Span,
 675     pub dll_prefix: &'a str,
 676     pub dll_suffix: &'a str,
 677 }
 678
 679 #[derive(Diagnostic)]
 680 #[diag(metadata::multiple_import_name_type)]
 681 pub struct MultipleImportNameType {
 682     #[primary_span]
 683     pub span: Span,
 684 }
 685
 686 #[derive(Diagnostic)]
 687 #[diag(metadata::import_name_type_form)]
 688 pub struct ImportNameTypeForm {
 689     #[primary_span]
 690     pub span: Span,
 691 }
 692
 693 #[derive(Diagnostic)]
 694 #[diag(metadata::import_name_type_x86)]
 695 pub struct ImportNameTypeX86 {
 696     #[primary_span]
 697     pub span: Span,
 698 }
 699
 700 #[derive(Diagnostic)]
 701 #[diag(metadata::unknown_import_name_type)]
 702 pub struct UnknownImportNameType<'a> {
 703     #[primary_span]
 704     pub span: Span,
 705     pub import_name_type: &'a str,
 706 }
 707
 708 #[derive(Diagnostic)]
 709 #[diag(metadata::import_name_type_raw)]
 710 pub struct ImportNameTypeRaw {
 711     #[primary_span]
 712     pub span: Span,
 713 }