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