compiler/rustc_interface/src/tests.rs

   1 use crate::interface::parse_cfgspecs;
   2
   3 use rustc_data_structures::fx::FxHashSet;
   4 use rustc_errors::{emitter::HumanReadableErrorType, registry, ColorConfig};
   5 use rustc_session::config::InstrumentCoverage;
   6 use rustc_session::config::Strip;
   7 use rustc_session::config::{build_configuration, build_session_options, to_crate_config};
   8 use rustc_session::config::{
   9     rustc_optgroups, ErrorOutputType, ExternLocation, LocationDetail, Options, Passes,
  10 };
  11 use rustc_session::config::{CFGuard, ExternEntry, LinkerPluginLto, LtoCli, SwitchWithOptPath};
  12 use rustc_session::config::{
  13     Externs, OutputType, OutputTypes, SymbolManglingVersion, WasiExecModel,
  14 };
  15 use rustc_session::lint::Level;
  16 use rustc_session::search_paths::SearchPath;
  17 use rustc_session::utils::{CanonicalizedPath, NativeLib, NativeLibKind};
  18 use rustc_session::{build_session, getopts, DiagnosticOutput, Session};
  19 use rustc_span::edition::{Edition, DEFAULT_EDITION};
  20 use rustc_span::symbol::sym;
  21 use rustc_span::SourceFileHashAlgorithm;
  22 use rustc_target::spec::{CodeModel, LinkerFlavor, MergeFunctions, PanicStrategy};
  23 use rustc_target::spec::{RelocModel, RelroLevel, SanitizerSet, SplitDebuginfo, TlsModel};
  24
  25 use std::collections::{BTreeMap, BTreeSet};
  26 use std::iter::FromIterator;
  27 use std::num::NonZeroUsize;
  28 use std::path::{Path, PathBuf};
  29
  30 type CfgSpecs = FxHashSet<(String, Option<String>)>;
  31
  32 fn build_session_options_and_crate_config(matches: getopts::Matches) -> (Options, CfgSpecs) {
  33     let sessopts = build_session_options(&matches);
  34     let cfg = parse_cfgspecs(matches.opt_strs("cfg"));
  35     (sessopts, cfg)
  36 }
  37
  38 fn mk_session(matches: getopts::Matches) -> (Session, CfgSpecs) {
  39     let registry = registry::Registry::new(&[]);
  40     let (sessopts, cfg) = build_session_options_and_crate_config(matches);
  41     let sess = build_session(
  42         sessopts,
  43         None,
  44         registry,
  45         DiagnosticOutput::Default,
  46         Default::default(),
  47         None,
  48         None,
  49     );
  50     (sess, cfg)
  51 }
  52
  53 fn new_public_extern_entry<S, I>(locations: I) -> ExternEntry
  54 where
  55     S: Into<String>,
  56     I: IntoIterator<Item = S>,
  57 {
  58     let locations: BTreeSet<CanonicalizedPath> =
  59         locations.into_iter().map(|s| CanonicalizedPath::new(Path::new(&s.into()))).collect();
  60
  61     ExternEntry {
  62         location: ExternLocation::ExactPaths(locations),
  63         is_private_dep: false,
  64         add_prelude: true,
  65     }
  66 }
  67
  68 fn optgroups() -> getopts::Options {
  69     let mut opts = getopts::Options::new();
  70     for group in rustc_optgroups() {
  71         (group.apply)(&mut opts);
  72     }
  73     return opts;
  74 }
  75
  76 fn mk_map<K: Ord, V>(entries: Vec<(K, V)>) -> BTreeMap<K, V> {
  77     BTreeMap::from_iter(entries.into_iter())
  78 }
  79
  80 fn assert_same_clone(x: &Options) {
  81     assert_eq!(x.dep_tracking_hash(true), x.clone().dep_tracking_hash(true));
  82     assert_eq!(x.dep_tracking_hash(false), x.clone().dep_tracking_hash(false));
  83 }
  84
  85 fn assert_same_hash(x: &Options, y: &Options) {
  86     assert_eq!(x.dep_tracking_hash(true), y.dep_tracking_hash(true));
  87     assert_eq!(x.dep_tracking_hash(false), y.dep_tracking_hash(false));
  88     // Check clone
  89     assert_same_clone(x);
  90     assert_same_clone(y);
  91 }
  92
  93 fn assert_different_hash(x: &Options, y: &Options) {
  94     assert_ne!(x.dep_tracking_hash(true), y.dep_tracking_hash(true));
  95     assert_ne!(x.dep_tracking_hash(false), y.dep_tracking_hash(false));
  96     // Check clone
  97     assert_same_clone(x);
  98     assert_same_clone(y);
  99 }
 100
 101 fn assert_non_crate_hash_different(x: &Options, y: &Options) {
 102     assert_eq!(x.dep_tracking_hash(true), y.dep_tracking_hash(true));
 103     assert_ne!(x.dep_tracking_hash(false), y.dep_tracking_hash(false));
 104     // Check clone
 105     assert_same_clone(x);
 106     assert_same_clone(y);
 107 }
 108
 109 // When the user supplies --test we should implicitly supply --cfg test
 110 #[test]
 111 fn test_switch_implies_cfg_test() {
 112     rustc_span::create_default_session_globals_then(|| {
 113         let matches = optgroups().parse(&["--test".to_string()]).unwrap();
 114         let (sess, cfg) = mk_session(matches);
 115         let cfg = build_configuration(&sess, to_crate_config(cfg));
 116         assert!(cfg.contains(&(sym::test, None)));
 117     });
 118 }
 119
 120 // When the user supplies --test and --cfg test, don't implicitly add another --cfg test
 121 #[test]
 122 fn test_switch_implies_cfg_test_unless_cfg_test() {
 123     rustc_span::create_default_session_globals_then(|| {
 124         let matches = optgroups().parse(&["--test".to_string(), "--cfg=test".to_string()]).unwrap();
 125         let (sess, cfg) = mk_session(matches);
 126         let cfg = build_configuration(&sess, to_crate_config(cfg));
 127         let mut test_items = cfg.iter().filter(|&&(name, _)| name == sym::test);
 128         assert!(test_items.next().is_some());
 129         assert!(test_items.next().is_none());
 130     });
 131 }
 132
 133 #[test]
 134 fn test_can_print_warnings() {
 135     rustc_span::create_default_session_globals_then(|| {
 136         let matches = optgroups().parse(&["-Awarnings".to_string()]).unwrap();
 137         let (sess, _) = mk_session(matches);
 138         assert!(!sess.diagnostic().can_emit_warnings());
 139     });
 140
 141     rustc_span::create_default_session_globals_then(|| {
 142         let matches =
 143             optgroups().parse(&["-Awarnings".to_string(), "-Dwarnings".to_string()]).unwrap();
 144         let (sess, _) = mk_session(matches);
 145         assert!(sess.diagnostic().can_emit_warnings());
 146     });
 147
 148     rustc_span::create_default_session_globals_then(|| {
 149         let matches = optgroups().parse(&["-Adead_code".to_string()]).unwrap();
 150         let (sess, _) = mk_session(matches);
 151         assert!(sess.diagnostic().can_emit_warnings());
 152     });
 153 }
 154
 155 #[test]
 156 fn test_output_types_tracking_hash_different_paths() {
 157     let mut v1 = Options::default();
 158     let mut v2 = Options::default();
 159     let mut v3 = Options::default();
 160
 161     v1.output_types = OutputTypes::new(&[(OutputType::Exe, Some(PathBuf::from("./some/thing")))]);
 162     v2.output_types = OutputTypes::new(&[(OutputType::Exe, Some(PathBuf::from("/some/thing")))]);
 163     v3.output_types = OutputTypes::new(&[(OutputType::Exe, None)]);
 164
 165     assert_non_crate_hash_different(&v1, &v2);
 166     assert_non_crate_hash_different(&v1, &v3);
 167     assert_non_crate_hash_different(&v2, &v3);
 168 }
 169
 170 #[test]
 171 fn test_output_types_tracking_hash_different_construction_order() {
 172     let mut v1 = Options::default();
 173     let mut v2 = Options::default();
 174
 175     v1.output_types = OutputTypes::new(&[
 176         (OutputType::Exe, Some(PathBuf::from("./some/thing"))),
 177         (OutputType::Bitcode, Some(PathBuf::from("./some/thing.bc"))),
 178     ]);
 179
 180     v2.output_types = OutputTypes::new(&[
 181         (OutputType::Bitcode, Some(PathBuf::from("./some/thing.bc"))),
 182         (OutputType::Exe, Some(PathBuf::from("./some/thing"))),
 183     ]);
 184
 185     assert_same_hash(&v1, &v2);
 186 }
 187
 188 #[test]
 189 fn test_externs_tracking_hash_different_construction_order() {
 190     let mut v1 = Options::default();
 191     let mut v2 = Options::default();
 192     let mut v3 = Options::default();
 193
 194     v1.externs = Externs::new(mk_map(vec![
 195         (String::from("a"), new_public_extern_entry(vec!["b", "c"])),
 196         (String::from("d"), new_public_extern_entry(vec!["e", "f"])),
 197     ]));
 198
 199     v2.externs = Externs::new(mk_map(vec![
 200         (String::from("d"), new_public_extern_entry(vec!["e", "f"])),
 201         (String::from("a"), new_public_extern_entry(vec!["b", "c"])),
 202     ]));
 203
 204     v3.externs = Externs::new(mk_map(vec![
 205         (String::from("a"), new_public_extern_entry(vec!["b", "c"])),
 206         (String::from("d"), new_public_extern_entry(vec!["f", "e"])),
 207     ]));
 208
 209     assert_same_hash(&v1, &v2);
 210     assert_same_hash(&v1, &v3);
 211     assert_same_hash(&v2, &v3);
 212 }
 213
 214 #[test]
 215 fn test_lints_tracking_hash_different_values() {
 216     let mut v1 = Options::default();
 217     let mut v2 = Options::default();
 218     let mut v3 = Options::default();
 219
 220     v1.lint_opts = vec![
 221         (String::from("a"), Level::Allow),
 222         (String::from("b"), Level::Warn),
 223         (String::from("c"), Level::Deny),
 224         (String::from("d"), Level::Forbid),
 225     ];
 226
 227     v2.lint_opts = vec![
 228         (String::from("a"), Level::Allow),
 229         (String::from("b"), Level::Warn),
 230         (String::from("X"), Level::Deny),
 231         (String::from("d"), Level::Forbid),
 232     ];
 233
 234     v3.lint_opts = vec![
 235         (String::from("a"), Level::Allow),
 236         (String::from("b"), Level::Warn),
 237         (String::from("c"), Level::Forbid),
 238         (String::from("d"), Level::Deny),
 239     ];
 240
 241     assert_non_crate_hash_different(&v1, &v2);
 242     assert_non_crate_hash_different(&v1, &v3);
 243     assert_non_crate_hash_different(&v2, &v3);
 244 }
 245
 246 #[test]
 247 fn test_lints_tracking_hash_different_construction_order() {
 248     let mut v1 = Options::default();
 249     let mut v2 = Options::default();
 250
 251     v1.lint_opts = vec![
 252         (String::from("a"), Level::Allow),
 253         (String::from("b"), Level::Warn),
 254         (String::from("c"), Level::Deny),
 255         (String::from("d"), Level::Forbid),
 256     ];
 257
 258     v2.lint_opts = vec![
 259         (String::from("a"), Level::Allow),
 260         (String::from("c"), Level::Deny),
 261         (String::from("b"), Level::Warn),
 262         (String::from("d"), Level::Forbid),
 263     ];
 264
 265     // The hash should be order-dependent
 266     assert_non_crate_hash_different(&v1, &v2);
 267 }
 268
 269 #[test]
 270 fn test_lint_cap_hash_different() {
 271     let mut v1 = Options::default();
 272     let mut v2 = Options::default();
 273     let v3 = Options::default();
 274
 275     v1.lint_cap = Some(Level::Forbid);
 276     v2.lint_cap = Some(Level::Allow);
 277
 278     assert_non_crate_hash_different(&v1, &v2);
 279     assert_non_crate_hash_different(&v1, &v3);
 280     assert_non_crate_hash_different(&v2, &v3);
 281 }
 282
 283 #[test]
 284 fn test_search_paths_tracking_hash_different_order() {
 285     let mut v1 = Options::default();
 286     let mut v2 = Options::default();
 287     let mut v3 = Options::default();
 288     let mut v4 = Options::default();
 289
 290     const JSON: ErrorOutputType = ErrorOutputType::Json {
 291         pretty: false,
 292         json_rendered: HumanReadableErrorType::Default(ColorConfig::Never),
 293     };
 294
 295     // Reference
 296     v1.search_paths.push(SearchPath::from_cli_opt("native=abc", JSON));
 297     v1.search_paths.push(SearchPath::from_cli_opt("crate=def", JSON));
 298     v1.search_paths.push(SearchPath::from_cli_opt("dependency=ghi", JSON));
 299     v1.search_paths.push(SearchPath::from_cli_opt("framework=jkl", JSON));
 300     v1.search_paths.push(SearchPath::from_cli_opt("all=mno", JSON));
 301
 302     v2.search_paths.push(SearchPath::from_cli_opt("native=abc", JSON));
 303     v2.search_paths.push(SearchPath::from_cli_opt("dependency=ghi", JSON));
 304     v2.search_paths.push(SearchPath::from_cli_opt("crate=def", JSON));
 305     v2.search_paths.push(SearchPath::from_cli_opt("framework=jkl", JSON));
 306     v2.search_paths.push(SearchPath::from_cli_opt("all=mno", JSON));
 307
 308     v3.search_paths.push(SearchPath::from_cli_opt("crate=def", JSON));
 309     v3.search_paths.push(SearchPath::from_cli_opt("framework=jkl", JSON));
 310     v3.search_paths.push(SearchPath::from_cli_opt("native=abc", JSON));
 311     v3.search_paths.push(SearchPath::from_cli_opt("dependency=ghi", JSON));
 312     v3.search_paths.push(SearchPath::from_cli_opt("all=mno", JSON));
 313
 314     v4.search_paths.push(SearchPath::from_cli_opt("all=mno", JSON));
 315     v4.search_paths.push(SearchPath::from_cli_opt("native=abc", JSON));
 316     v4.search_paths.push(SearchPath::from_cli_opt("crate=def", JSON));
 317     v4.search_paths.push(SearchPath::from_cli_opt("dependency=ghi", JSON));
 318     v4.search_paths.push(SearchPath::from_cli_opt("framework=jkl", JSON));
 319
 320     assert_same_hash(&v1, &v2);
 321     assert_same_hash(&v1, &v3);
 322     assert_same_hash(&v1, &v4);
 323 }
 324
 325 #[test]
 326 fn test_native_libs_tracking_hash_different_values() {
 327     let mut v1 = Options::default();
 328     let mut v2 = Options::default();
 329     let mut v3 = Options::default();
 330     let mut v4 = Options::default();
 331     let mut v5 = Options::default();
 332
 333     // Reference
 334     v1.libs = vec![
 335         NativeLib {
 336             name: String::from("a"),
 337             new_name: None,
 338             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 339             verbatim: None,
 340         },
 341         NativeLib {
 342             name: String::from("b"),
 343             new_name: None,
 344             kind: NativeLibKind::Framework { as_needed: None },
 345             verbatim: None,
 346         },
 347         NativeLib {
 348             name: String::from("c"),
 349             new_name: None,
 350             kind: NativeLibKind::Unspecified,
 351             verbatim: None,
 352         },
 353     ];
 354
 355     // Change label
 356     v2.libs = vec![
 357         NativeLib {
 358             name: String::from("a"),
 359             new_name: None,
 360             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 361             verbatim: None,
 362         },
 363         NativeLib {
 364             name: String::from("X"),
 365             new_name: None,
 366             kind: NativeLibKind::Framework { as_needed: None },
 367             verbatim: None,
 368         },
 369         NativeLib {
 370             name: String::from("c"),
 371             new_name: None,
 372             kind: NativeLibKind::Unspecified,
 373             verbatim: None,
 374         },
 375     ];
 376
 377     // Change kind
 378     v3.libs = vec![
 379         NativeLib {
 380             name: String::from("a"),
 381             new_name: None,
 382             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 383             verbatim: None,
 384         },
 385         NativeLib {
 386             name: String::from("b"),
 387             new_name: None,
 388             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 389             verbatim: None,
 390         },
 391         NativeLib {
 392             name: String::from("c"),
 393             new_name: None,
 394             kind: NativeLibKind::Unspecified,
 395             verbatim: None,
 396         },
 397     ];
 398
 399     // Change new-name
 400     v4.libs = vec![
 401         NativeLib {
 402             name: String::from("a"),
 403             new_name: None,
 404             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 405             verbatim: None,
 406         },
 407         NativeLib {
 408             name: String::from("b"),
 409             new_name: Some(String::from("X")),
 410             kind: NativeLibKind::Framework { as_needed: None },
 411             verbatim: None,
 412         },
 413         NativeLib {
 414             name: String::from("c"),
 415             new_name: None,
 416             kind: NativeLibKind::Unspecified,
 417             verbatim: None,
 418         },
 419     ];
 420
 421     // Change verbatim
 422     v5.libs = vec![
 423         NativeLib {
 424             name: String::from("a"),
 425             new_name: None,
 426             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 427             verbatim: None,
 428         },
 429         NativeLib {
 430             name: String::from("b"),
 431             new_name: None,
 432             kind: NativeLibKind::Framework { as_needed: None },
 433             verbatim: Some(true),
 434         },
 435         NativeLib {
 436             name: String::from("c"),
 437             new_name: None,
 438             kind: NativeLibKind::Unspecified,
 439             verbatim: None,
 440         },
 441     ];
 442
 443     assert_different_hash(&v1, &v2);
 444     assert_different_hash(&v1, &v3);
 445     assert_different_hash(&v1, &v4);
 446     assert_different_hash(&v1, &v5);
 447 }
 448
 449 #[test]
 450 fn test_native_libs_tracking_hash_different_order() {
 451     let mut v1 = Options::default();
 452     let mut v2 = Options::default();
 453     let mut v3 = Options::default();
 454
 455     // Reference
 456     v1.libs = vec![
 457         NativeLib {
 458             name: String::from("a"),
 459             new_name: None,
 460             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 461             verbatim: None,
 462         },
 463         NativeLib {
 464             name: String::from("b"),
 465             new_name: None,
 466             kind: NativeLibKind::Framework { as_needed: None },
 467             verbatim: None,
 468         },
 469         NativeLib {
 470             name: String::from("c"),
 471             new_name: None,
 472             kind: NativeLibKind::Unspecified,
 473             verbatim: None,
 474         },
 475     ];
 476
 477     v2.libs = vec![
 478         NativeLib {
 479             name: String::from("b"),
 480             new_name: None,
 481             kind: NativeLibKind::Framework { as_needed: None },
 482             verbatim: None,
 483         },
 484         NativeLib {
 485             name: String::from("a"),
 486             new_name: None,
 487             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 488             verbatim: None,
 489         },
 490         NativeLib {
 491             name: String::from("c"),
 492             new_name: None,
 493             kind: NativeLibKind::Unspecified,
 494             verbatim: None,
 495         },
 496     ];
 497
 498     v3.libs = vec![
 499         NativeLib {
 500             name: String::from("c"),
 501             new_name: None,
 502             kind: NativeLibKind::Unspecified,
 503             verbatim: None,
 504         },
 505         NativeLib {
 506             name: String::from("a"),
 507             new_name: None,
 508             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 509             verbatim: None,
 510         },
 511         NativeLib {
 512             name: String::from("b"),
 513             new_name: None,
 514             kind: NativeLibKind::Framework { as_needed: None },
 515             verbatim: None,
 516         },
 517     ];
 518
 519     // The hash should be order-dependent
 520     assert_different_hash(&v1, &v2);
 521     assert_different_hash(&v1, &v3);
 522     assert_different_hash(&v2, &v3);
 523 }
 524
 525 #[test]
 526 fn test_codegen_options_tracking_hash() {
 527     let reference = Options::default();
 528     let mut opts = Options::default();
 529
 530     macro_rules! untracked {
 531         ($name: ident, $non_default_value: expr) => {
 532             assert_ne!(opts.cg.$name, $non_default_value);
 533             opts.cg.$name = $non_default_value;
 534             assert_same_hash(&reference, &opts);
 535         };
 536     }
 537
 538     // Make sure that changing an [UNTRACKED] option leaves the hash unchanged.
 539     // This list is in alphabetical order.
 540     untracked!(ar, String::from("abc"));
 541     untracked!(codegen_units, Some(42));
 542     untracked!(default_linker_libraries, true);
 543     untracked!(extra_filename, String::from("extra-filename"));
 544     untracked!(incremental, Some(String::from("abc")));
 545     // `link_arg` is omitted because it just forwards to `link_args`.
 546     untracked!(link_args, vec![String::from("abc"), String::from("def")]);
 547     untracked!(link_self_contained, Some(true));
 548     untracked!(linker, Some(PathBuf::from("linker")));
 549     untracked!(linker_flavor, Some(LinkerFlavor::Gcc));
 550     untracked!(no_stack_check, true);
 551     untracked!(remark, Passes::Some(vec![String::from("pass1"), String::from("pass2")]));
 552     untracked!(rpath, true);
 553     untracked!(save_temps, true);
 554
 555     macro_rules! tracked {
 556         ($name: ident, $non_default_value: expr) => {
 557             opts = reference.clone();
 558             assert_ne!(opts.cg.$name, $non_default_value);
 559             opts.cg.$name = $non_default_value;
 560             assert_different_hash(&reference, &opts);
 561         };
 562     }
 563
 564     // Make sure that changing a [TRACKED] option changes the hash.
 565     // This list is in alphabetical order.
 566     tracked!(code_model, Some(CodeModel::Large));
 567     tracked!(control_flow_guard, CFGuard::Checks);
 568     tracked!(debug_assertions, Some(true));
 569     tracked!(debuginfo, 0xdeadbeef);
 570     tracked!(embed_bitcode, false);
 571     tracked!(force_frame_pointers, Some(false));
 572     tracked!(force_unwind_tables, Some(true));
 573     tracked!(inline_threshold, Some(0xf007ba11));
 574     tracked!(linker_plugin_lto, LinkerPluginLto::LinkerPluginAuto);
 575     tracked!(link_dead_code, Some(true));
 576     tracked!(llvm_args, vec![String::from("1"), String::from("2")]);
 577     tracked!(lto, LtoCli::Fat);
 578     tracked!(metadata, vec![String::from("A"), String::from("B")]);
 579     tracked!(no_prepopulate_passes, true);
 580     tracked!(no_redzone, Some(true));
 581     tracked!(no_vectorize_loops, true);
 582     tracked!(no_vectorize_slp, true);
 583     tracked!(opt_level, "3".to_string());
 584     tracked!(overflow_checks, Some(true));
 585     tracked!(panic, Some(PanicStrategy::Abort));
 586     tracked!(passes, vec![String::from("1"), String::from("2")]);
 587     tracked!(prefer_dynamic, true);
 588     tracked!(profile_generate, SwitchWithOptPath::Enabled(None));
 589     tracked!(profile_use, Some(PathBuf::from("abc")));
 590     tracked!(relocation_model, Some(RelocModel::Pic));
 591     tracked!(soft_float, true);
 592     tracked!(split_debuginfo, Some(SplitDebuginfo::Packed));
 593     tracked!(target_cpu, Some(String::from("abc")));
 594     tracked!(target_feature, String::from("all the features, all of them"));
 595 }
 596
 597 #[test]
 598 fn test_top_level_options_tracked_no_crate() {
 599     let reference = Options::default();
 600     let mut opts;
 601
 602     macro_rules! tracked {
 603         ($name: ident, $non_default_value: expr) => {
 604             opts = reference.clone();
 605             assert_ne!(opts.$name, $non_default_value);
 606             opts.$name = $non_default_value;
 607             // The crate hash should be the same
 608             assert_eq!(reference.dep_tracking_hash(true), opts.dep_tracking_hash(true));
 609             // The incremental hash should be different
 610             assert_ne!(reference.dep_tracking_hash(false), opts.dep_tracking_hash(false));
 611         };
 612     }
 613
 614     // Make sure that changing a [TRACKED_NO_CRATE_HASH] option leaves the crate hash unchanged but changes the incremental hash.
 615     // This list is in alphabetical order.
 616     tracked!(remap_path_prefix, vec![("/home/bors/rust".into(), "src".into())]);
 617     tracked!(
 618         real_rust_source_base_dir,
 619         Some("/home/bors/rust/.rustup/toolchains/nightly/lib/rustlib/src/rust".into())
 620     );
 621 }
 622
 623 #[test]
 624 fn test_debugging_options_tracking_hash() {
 625     let reference = Options::default();
 626     let mut opts = Options::default();
 627
 628     macro_rules! untracked {
 629         ($name: ident, $non_default_value: expr) => {
 630             assert_ne!(opts.debugging_opts.$name, $non_default_value);
 631             opts.debugging_opts.$name = $non_default_value;
 632             assert_same_hash(&reference, &opts);
 633         };
 634     }
 635
 636     // Make sure that changing an [UNTRACKED] option leaves the hash unchanged.
 637     // This list is in alphabetical order.
 638     untracked!(ast_json, true);
 639     untracked!(ast_json_noexpand, true);
 640     untracked!(borrowck, String::from("other"));
 641     untracked!(deduplicate_diagnostics, false);
 642     untracked!(dep_tasks, true);
 643     untracked!(dont_buffer_diagnostics, true);
 644     untracked!(dump_dep_graph, true);
 645     untracked!(dump_mir, Some(String::from("abc")));
 646     untracked!(dump_mir_dataflow, true);
 647     untracked!(dump_mir_dir, String::from("abc"));
 648     untracked!(dump_mir_exclude_pass_number, true);
 649     untracked!(dump_mir_graphviz, true);
 650     untracked!(emit_future_incompat_report, true);
 651     untracked!(emit_stack_sizes, true);
 652     untracked!(future_incompat_test, true);
 653     untracked!(hir_stats, true);
 654     untracked!(identify_regions, true);
 655     untracked!(incremental_ignore_spans, true);
 656     untracked!(incremental_info, true);
 657     untracked!(incremental_verify_ich, true);
 658     untracked!(input_stats, true);
 659     untracked!(keep_hygiene_data, true);
 660     untracked!(link_native_libraries, false);
 661     untracked!(llvm_time_trace, true);
 662     untracked!(ls, true);
 663     untracked!(macro_backtrace, true);
 664     untracked!(meta_stats, true);
 665     untracked!(nll_facts, true);
 666     untracked!(no_analysis, true);
 667     untracked!(no_interleave_lints, true);
 668     untracked!(no_leak_check, true);
 669     untracked!(no_parallel_llvm, true);
 670     untracked!(parse_only, true);
 671     untracked!(perf_stats, true);
 672     // `pre_link_arg` is omitted because it just forwards to `pre_link_args`.
 673     untracked!(pre_link_args, vec![String::from("abc"), String::from("def")]);
 674     untracked!(profile_closures, true);
 675     untracked!(print_link_args, true);
 676     untracked!(print_llvm_passes, true);
 677     untracked!(print_mono_items, Some(String::from("abc")));
 678     untracked!(print_type_sizes, true);
 679     untracked!(proc_macro_backtrace, true);
 680     untracked!(query_dep_graph, true);
 681     untracked!(query_stats, true);
 682     untracked!(save_analysis, true);
 683     untracked!(self_profile, SwitchWithOptPath::Enabled(None));
 684     untracked!(self_profile_events, Some(vec![String::new()]));
 685     untracked!(span_debug, true);
 686     untracked!(span_free_formats, true);
 687     untracked!(strip, Strip::Debuginfo);
 688     untracked!(terminal_width, Some(80));
 689     untracked!(threads, 99);
 690     untracked!(time, true);
 691     untracked!(time_llvm_passes, true);
 692     untracked!(time_passes, true);
 693     untracked!(trace_macros, true);
 694     untracked!(trim_diagnostic_paths, false);
 695     untracked!(ui_testing, true);
 696     untracked!(unpretty, Some("expanded".to_string()));
 697     untracked!(unstable_options, true);
 698     untracked!(validate_mir, true);
 699     untracked!(verbose, true);
 700
 701     macro_rules! tracked {
 702         ($name: ident, $non_default_value: expr) => {
 703             opts = reference.clone();
 704             assert_ne!(opts.debugging_opts.$name, $non_default_value);
 705             opts.debugging_opts.$name = $non_default_value;
 706             assert_different_hash(&reference, &opts);
 707         };
 708     }
 709
 710     // Make sure that changing a [TRACKED] option changes the hash.
 711     // This list is in alphabetical order.
 712     tracked!(allow_features, Some(vec![String::from("lang_items")]));
 713     tracked!(always_encode_mir, true);
 714     tracked!(assume_incomplete_release, true);
 715     tracked!(asm_comments, true);
 716     tracked!(binary_dep_depinfo, true);
 717     tracked!(chalk, true);
 718     tracked!(codegen_backend, Some("abc".to_string()));
 719     tracked!(crate_attr, vec!["abc".to_string()]);
 720     tracked!(debug_info_for_profiling, true);
 721     tracked!(debug_macros, true);
 722     tracked!(dep_info_omit_d_target, true);
 723     tracked!(dual_proc_macros, true);
 724     tracked!(fewer_names, Some(true));
 725     tracked!(force_overflow_checks, Some(true));
 726     tracked!(force_unstable_if_unmarked, true);
 727     tracked!(fuel, Some(("abc".to_string(), 99)));
 728     tracked!(function_sections, Some(false));
 729     tracked!(human_readable_cgu_names, true);
 730     tracked!(inline_in_all_cgus, Some(true));
 731     tracked!(inline_mir, Some(true));
 732     tracked!(inline_mir_threshold, Some(123));
 733     tracked!(inline_mir_hint_threshold, Some(123));
 734     tracked!(instrument_coverage, Some(InstrumentCoverage::All));
 735     tracked!(instrument_mcount, true);
 736     tracked!(link_only, true);
 737     tracked!(llvm_plugins, vec![String::from("plugin_name")]);
 738     tracked!(location_detail, LocationDetail { file: true, line: false, column: false });
 739     tracked!(merge_functions, Some(MergeFunctions::Disabled));
 740     tracked!(mir_emit_retag, true);
 741     tracked!(mir_opt_level, Some(4));
 742     tracked!(move_size_limit, Some(4096));
 743     tracked!(mutable_noalias, Some(true));
 744     tracked!(new_llvm_pass_manager, Some(true));
 745     tracked!(no_generate_arange_section, true);
 746     tracked!(no_link, true);
 747     tracked!(no_profiler_runtime, true);
 748     tracked!(osx_rpath_install_name, true);
 749     tracked!(panic_abort_tests, true);
 750     tracked!(panic_in_drop, PanicStrategy::Abort);
 751     tracked!(partially_uninit_const_threshold, Some(123));
 752     tracked!(plt, Some(true));
 753     tracked!(polonius, true);
 754     tracked!(precise_enum_drop_elaboration, false);
 755     tracked!(print_fuel, Some("abc".to_string()));
 756     tracked!(profile, true);
 757     tracked!(profile_emit, Some(PathBuf::from("abc")));
 758     tracked!(profiler_runtime, "abc".to_string());
 759     tracked!(profile_sample_use, Some(PathBuf::from("abc")));
 760     tracked!(relax_elf_relocations, Some(true));
 761     tracked!(relro_level, Some(RelroLevel::Full));
 762     tracked!(remap_cwd_prefix, Some(PathBuf::from("abc")));
 763     tracked!(simulate_remapped_rust_src_base, Some(PathBuf::from("/rustc/abc")));
 764     tracked!(report_delayed_bugs, true);
 765     tracked!(sanitizer, SanitizerSet::ADDRESS);
 766     tracked!(sanitizer_memory_track_origins, 2);
 767     tracked!(sanitizer_recover, SanitizerSet::ADDRESS);
 768     tracked!(saturating_float_casts, Some(true));
 769     tracked!(share_generics, Some(true));
 770     tracked!(show_span, Some(String::from("abc")));
 771     tracked!(src_hash_algorithm, Some(SourceFileHashAlgorithm::Sha1));
 772     tracked!(symbol_mangling_version, Some(SymbolManglingVersion::V0));
 773     tracked!(teach, true);
 774     tracked!(thinlto, Some(true));
 775     tracked!(thir_unsafeck, true);
 776     tracked!(tune_cpu, Some(String::from("abc")));
 777     tracked!(tls_model, Some(TlsModel::GeneralDynamic));
 778     tracked!(trap_unreachable, Some(false));
 779     tracked!(treat_err_as_bug, NonZeroUsize::new(1));
 780     tracked!(unleash_the_miri_inside_of_you, true);
 781     tracked!(use_ctors_section, Some(true));
 782     tracked!(verify_llvm_ir, true);
 783     tracked!(wasi_exec_model, Some(WasiExecModel::Reactor));
 784
 785     macro_rules! tracked_no_crate_hash {
 786         ($name: ident, $non_default_value: expr) => {
 787             opts = reference.clone();
 788             assert_ne!(opts.debugging_opts.$name, $non_default_value);
 789             opts.debugging_opts.$name = $non_default_value;
 790             assert_non_crate_hash_different(&reference, &opts);
 791         };
 792     }
 793     tracked_no_crate_hash!(no_codegen, true);
 794 }
 795
 796 #[test]
 797 fn test_edition_parsing() {
 798     // test default edition
 799     let options = Options::default();
 800     assert!(options.edition == DEFAULT_EDITION);
 801
 802     let matches = optgroups().parse(&["--edition=2018".to_string()]).unwrap();
 803     let (sessopts, _) = build_session_options_and_crate_config(matches);
 804     assert!(sessopts.edition == Edition::Edition2018)
 805 }