compiler/rustc_interface/src/tests.rs

   1 #![allow(rustc::bad_opt_access)]
   2 use crate::interface::parse_cfgspecs;
   3
   4 use rustc_data_structures::fx::FxHashSet;
   5 use rustc_errors::{emitter::HumanReadableErrorType, registry, ColorConfig};
   6 use rustc_session::config::InstrumentCoverage;
   7 use rustc_session::config::Strip;
   8 use rustc_session::config::{build_configuration, build_session_options, to_crate_config};
   9 use rustc_session::config::{
  10     rustc_optgroups, ErrorOutputType, ExternLocation, LocationDetail, Options, Passes,
  11 };
  12 use rustc_session::config::{
  13     BranchProtection, Externs, OomStrategy, OutputType, OutputTypes, PAuthKey, PacRet,
  14     ProcMacroExecutionStrategy, SymbolManglingVersion, WasiExecModel,
  15 };
  16 use rustc_session::config::{CFGuard, ExternEntry, LinkerPluginLto, LtoCli, SwitchWithOptPath};
  17 use rustc_session::lint::Level;
  18 use rustc_session::search_paths::SearchPath;
  19 use rustc_session::utils::{CanonicalizedPath, NativeLib, NativeLibKind};
  20 use rustc_session::{build_session, getopts, DiagnosticOutput, Session};
  21 use rustc_span::edition::{Edition, DEFAULT_EDITION};
  22 use rustc_span::symbol::sym;
  23 use rustc_span::SourceFileHashAlgorithm;
  24 use rustc_target::spec::{CodeModel, LinkerFlavorCli, MergeFunctions, PanicStrategy, RelocModel};
  25 use rustc_target::spec::{RelroLevel, SanitizerSet, SplitDebuginfo, StackProtector, TlsModel};
  26
  27 use std::collections::{BTreeMap, BTreeSet};
  28 use std::iter::FromIterator;
  29 use std::num::NonZeroUsize;
  30 use std::path::{Path, PathBuf};
  31
  32 type CfgSpecs = FxHashSet<(String, Option<String>)>;
  33
  34 fn build_session_options_and_crate_config(matches: getopts::Matches) -> (Options, CfgSpecs) {
  35     let sessopts = build_session_options(&matches);
  36     let cfg = parse_cfgspecs(matches.opt_strs("cfg"));
  37     (sessopts, cfg)
  38 }
  39
  40 fn mk_session(matches: getopts::Matches) -> (Session, CfgSpecs) {
  41     let registry = registry::Registry::new(&[]);
  42     let (sessopts, cfg) = build_session_options_and_crate_config(matches);
  43     let sess = build_session(
  44         sessopts,
  45         None,
  46         None,
  47         registry,
  48         DiagnosticOutput::Default,
  49         Default::default(),
  50         None,
  51         None,
  52     );
  53     (sess, cfg)
  54 }
  55
  56 fn new_public_extern_entry<S, I>(locations: I) -> ExternEntry
  57 where
  58     S: Into<String>,
  59     I: IntoIterator<Item = S>,
  60 {
  61     let locations: BTreeSet<CanonicalizedPath> =
  62         locations.into_iter().map(|s| CanonicalizedPath::new(Path::new(&s.into()))).collect();
  63
  64     ExternEntry {
  65         location: ExternLocation::ExactPaths(locations),
  66         is_private_dep: false,
  67         add_prelude: true,
  68         nounused_dep: false,
  69     }
  70 }
  71
  72 fn optgroups() -> getopts::Options {
  73     let mut opts = getopts::Options::new();
  74     for group in rustc_optgroups() {
  75         (group.apply)(&mut opts);
  76     }
  77     return opts;
  78 }
  79
  80 fn mk_map<K: Ord, V>(entries: Vec<(K, V)>) -> BTreeMap<K, V> {
  81     BTreeMap::from_iter(entries.into_iter())
  82 }
  83
  84 fn assert_same_clone(x: &Options) {
  85     assert_eq!(x.dep_tracking_hash(true), x.clone().dep_tracking_hash(true));
  86     assert_eq!(x.dep_tracking_hash(false), x.clone().dep_tracking_hash(false));
  87 }
  88
  89 fn assert_same_hash(x: &Options, y: &Options) {
  90     assert_eq!(x.dep_tracking_hash(true), y.dep_tracking_hash(true));
  91     assert_eq!(x.dep_tracking_hash(false), y.dep_tracking_hash(false));
  92     // Check clone
  93     assert_same_clone(x);
  94     assert_same_clone(y);
  95 }
  96
  97 fn assert_different_hash(x: &Options, y: &Options) {
  98     assert_ne!(x.dep_tracking_hash(true), y.dep_tracking_hash(true));
  99     assert_ne!(x.dep_tracking_hash(false), y.dep_tracking_hash(false));
 100     // Check clone
 101     assert_same_clone(x);
 102     assert_same_clone(y);
 103 }
 104
 105 fn assert_non_crate_hash_different(x: &Options, y: &Options) {
 106     assert_eq!(x.dep_tracking_hash(true), y.dep_tracking_hash(true));
 107     assert_ne!(x.dep_tracking_hash(false), y.dep_tracking_hash(false));
 108     // Check clone
 109     assert_same_clone(x);
 110     assert_same_clone(y);
 111 }
 112
 113 // When the user supplies --test we should implicitly supply --cfg test
 114 #[test]
 115 fn test_switch_implies_cfg_test() {
 116     rustc_span::create_default_session_globals_then(|| {
 117         let matches = optgroups().parse(&["--test".to_string()]).unwrap();
 118         let (sess, cfg) = mk_session(matches);
 119         let cfg = build_configuration(&sess, to_crate_config(cfg));
 120         assert!(cfg.contains(&(sym::test, None)));
 121     });
 122 }
 123
 124 // When the user supplies --test and --cfg test, don't implicitly add another --cfg test
 125 #[test]
 126 fn test_switch_implies_cfg_test_unless_cfg_test() {
 127     rustc_span::create_default_session_globals_then(|| {
 128         let matches = optgroups().parse(&["--test".to_string(), "--cfg=test".to_string()]).unwrap();
 129         let (sess, cfg) = mk_session(matches);
 130         let cfg = build_configuration(&sess, to_crate_config(cfg));
 131         let mut test_items = cfg.iter().filter(|&&(name, _)| name == sym::test);
 132         assert!(test_items.next().is_some());
 133         assert!(test_items.next().is_none());
 134     });
 135 }
 136
 137 #[test]
 138 fn test_can_print_warnings() {
 139     rustc_span::create_default_session_globals_then(|| {
 140         let matches = optgroups().parse(&["-Awarnings".to_string()]).unwrap();
 141         let (sess, _) = mk_session(matches);
 142         assert!(!sess.diagnostic().can_emit_warnings());
 143     });
 144
 145     rustc_span::create_default_session_globals_then(|| {
 146         let matches =
 147             optgroups().parse(&["-Awarnings".to_string(), "-Dwarnings".to_string()]).unwrap();
 148         let (sess, _) = mk_session(matches);
 149         assert!(sess.diagnostic().can_emit_warnings());
 150     });
 151
 152     rustc_span::create_default_session_globals_then(|| {
 153         let matches = optgroups().parse(&["-Adead_code".to_string()]).unwrap();
 154         let (sess, _) = mk_session(matches);
 155         assert!(sess.diagnostic().can_emit_warnings());
 156     });
 157 }
 158
 159 #[test]
 160 fn test_output_types_tracking_hash_different_paths() {
 161     let mut v1 = Options::default();
 162     let mut v2 = Options::default();
 163     let mut v3 = Options::default();
 164
 165     v1.output_types = OutputTypes::new(&[(OutputType::Exe, Some(PathBuf::from("./some/thing")))]);
 166     v2.output_types = OutputTypes::new(&[(OutputType::Exe, Some(PathBuf::from("/some/thing")))]);
 167     v3.output_types = OutputTypes::new(&[(OutputType::Exe, None)]);
 168
 169     assert_non_crate_hash_different(&v1, &v2);
 170     assert_non_crate_hash_different(&v1, &v3);
 171     assert_non_crate_hash_different(&v2, &v3);
 172 }
 173
 174 #[test]
 175 fn test_output_types_tracking_hash_different_construction_order() {
 176     let mut v1 = Options::default();
 177     let mut v2 = Options::default();
 178
 179     v1.output_types = OutputTypes::new(&[
 180         (OutputType::Exe, Some(PathBuf::from("./some/thing"))),
 181         (OutputType::Bitcode, Some(PathBuf::from("./some/thing.bc"))),
 182     ]);
 183
 184     v2.output_types = OutputTypes::new(&[
 185         (OutputType::Bitcode, Some(PathBuf::from("./some/thing.bc"))),
 186         (OutputType::Exe, Some(PathBuf::from("./some/thing"))),
 187     ]);
 188
 189     assert_same_hash(&v1, &v2);
 190 }
 191
 192 #[test]
 193 fn test_externs_tracking_hash_different_construction_order() {
 194     let mut v1 = Options::default();
 195     let mut v2 = Options::default();
 196     let mut v3 = Options::default();
 197
 198     v1.externs = Externs::new(mk_map(vec![
 199         (String::from("a"), new_public_extern_entry(vec!["b", "c"])),
 200         (String::from("d"), new_public_extern_entry(vec!["e", "f"])),
 201     ]));
 202
 203     v2.externs = Externs::new(mk_map(vec![
 204         (String::from("d"), new_public_extern_entry(vec!["e", "f"])),
 205         (String::from("a"), new_public_extern_entry(vec!["b", "c"])),
 206     ]));
 207
 208     v3.externs = Externs::new(mk_map(vec![
 209         (String::from("a"), new_public_extern_entry(vec!["b", "c"])),
 210         (String::from("d"), new_public_extern_entry(vec!["f", "e"])),
 211     ]));
 212
 213     assert_same_hash(&v1, &v2);
 214     assert_same_hash(&v1, &v3);
 215     assert_same_hash(&v2, &v3);
 216 }
 217
 218 #[test]
 219 fn test_lints_tracking_hash_different_values() {
 220     let mut v1 = Options::default();
 221     let mut v2 = Options::default();
 222     let mut v3 = Options::default();
 223
 224     v1.lint_opts = vec![
 225         (String::from("a"), Level::Allow),
 226         (String::from("b"), Level::Warn),
 227         (String::from("c"), Level::Deny),
 228         (String::from("d"), Level::Forbid),
 229     ];
 230
 231     v2.lint_opts = vec![
 232         (String::from("a"), Level::Allow),
 233         (String::from("b"), Level::Warn),
 234         (String::from("X"), Level::Deny),
 235         (String::from("d"), Level::Forbid),
 236     ];
 237
 238     v3.lint_opts = vec![
 239         (String::from("a"), Level::Allow),
 240         (String::from("b"), Level::Warn),
 241         (String::from("c"), Level::Forbid),
 242         (String::from("d"), Level::Deny),
 243     ];
 244
 245     assert_non_crate_hash_different(&v1, &v2);
 246     assert_non_crate_hash_different(&v1, &v3);
 247     assert_non_crate_hash_different(&v2, &v3);
 248 }
 249
 250 #[test]
 251 fn test_lints_tracking_hash_different_construction_order() {
 252     let mut v1 = Options::default();
 253     let mut v2 = Options::default();
 254
 255     v1.lint_opts = vec![
 256         (String::from("a"), Level::Allow),
 257         (String::from("b"), Level::Warn),
 258         (String::from("c"), Level::Deny),
 259         (String::from("d"), Level::Forbid),
 260     ];
 261
 262     v2.lint_opts = vec![
 263         (String::from("a"), Level::Allow),
 264         (String::from("c"), Level::Deny),
 265         (String::from("b"), Level::Warn),
 266         (String::from("d"), Level::Forbid),
 267     ];
 268
 269     // The hash should be order-dependent
 270     assert_non_crate_hash_different(&v1, &v2);
 271 }
 272
 273 #[test]
 274 fn test_lint_cap_hash_different() {
 275     let mut v1 = Options::default();
 276     let mut v2 = Options::default();
 277     let v3 = Options::default();
 278
 279     v1.lint_cap = Some(Level::Forbid);
 280     v2.lint_cap = Some(Level::Allow);
 281
 282     assert_non_crate_hash_different(&v1, &v2);
 283     assert_non_crate_hash_different(&v1, &v3);
 284     assert_non_crate_hash_different(&v2, &v3);
 285 }
 286
 287 #[test]
 288 fn test_search_paths_tracking_hash_different_order() {
 289     let mut v1 = Options::default();
 290     let mut v2 = Options::default();
 291     let mut v3 = Options::default();
 292     let mut v4 = Options::default();
 293
 294     const JSON: ErrorOutputType = ErrorOutputType::Json {
 295         pretty: false,
 296         json_rendered: HumanReadableErrorType::Default(ColorConfig::Never),
 297     };
 298
 299     // Reference
 300     v1.search_paths.push(SearchPath::from_cli_opt("native=abc", JSON));
 301     v1.search_paths.push(SearchPath::from_cli_opt("crate=def", JSON));
 302     v1.search_paths.push(SearchPath::from_cli_opt("dependency=ghi", JSON));
 303     v1.search_paths.push(SearchPath::from_cli_opt("framework=jkl", JSON));
 304     v1.search_paths.push(SearchPath::from_cli_opt("all=mno", JSON));
 305
 306     v2.search_paths.push(SearchPath::from_cli_opt("native=abc", JSON));
 307     v2.search_paths.push(SearchPath::from_cli_opt("dependency=ghi", JSON));
 308     v2.search_paths.push(SearchPath::from_cli_opt("crate=def", JSON));
 309     v2.search_paths.push(SearchPath::from_cli_opt("framework=jkl", JSON));
 310     v2.search_paths.push(SearchPath::from_cli_opt("all=mno", JSON));
 311
 312     v3.search_paths.push(SearchPath::from_cli_opt("crate=def", JSON));
 313     v3.search_paths.push(SearchPath::from_cli_opt("framework=jkl", JSON));
 314     v3.search_paths.push(SearchPath::from_cli_opt("native=abc", JSON));
 315     v3.search_paths.push(SearchPath::from_cli_opt("dependency=ghi", JSON));
 316     v3.search_paths.push(SearchPath::from_cli_opt("all=mno", JSON));
 317
 318     v4.search_paths.push(SearchPath::from_cli_opt("all=mno", JSON));
 319     v4.search_paths.push(SearchPath::from_cli_opt("native=abc", JSON));
 320     v4.search_paths.push(SearchPath::from_cli_opt("crate=def", JSON));
 321     v4.search_paths.push(SearchPath::from_cli_opt("dependency=ghi", JSON));
 322     v4.search_paths.push(SearchPath::from_cli_opt("framework=jkl", JSON));
 323
 324     assert_same_hash(&v1, &v2);
 325     assert_same_hash(&v1, &v3);
 326     assert_same_hash(&v1, &v4);
 327 }
 328
 329 #[test]
 330 fn test_native_libs_tracking_hash_different_values() {
 331     let mut v1 = Options::default();
 332     let mut v2 = Options::default();
 333     let mut v3 = Options::default();
 334     let mut v4 = Options::default();
 335     let mut v5 = Options::default();
 336
 337     // Reference
 338     v1.libs = vec![
 339         NativeLib {
 340             name: String::from("a"),
 341             new_name: None,
 342             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 343             verbatim: None,
 344         },
 345         NativeLib {
 346             name: String::from("b"),
 347             new_name: None,
 348             kind: NativeLibKind::Framework { as_needed: None },
 349             verbatim: None,
 350         },
 351         NativeLib {
 352             name: String::from("c"),
 353             new_name: None,
 354             kind: NativeLibKind::Unspecified,
 355             verbatim: None,
 356         },
 357     ];
 358
 359     // Change label
 360     v2.libs = vec![
 361         NativeLib {
 362             name: String::from("a"),
 363             new_name: None,
 364             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 365             verbatim: None,
 366         },
 367         NativeLib {
 368             name: String::from("X"),
 369             new_name: None,
 370             kind: NativeLibKind::Framework { as_needed: None },
 371             verbatim: None,
 372         },
 373         NativeLib {
 374             name: String::from("c"),
 375             new_name: None,
 376             kind: NativeLibKind::Unspecified,
 377             verbatim: None,
 378         },
 379     ];
 380
 381     // Change kind
 382     v3.libs = vec![
 383         NativeLib {
 384             name: String::from("a"),
 385             new_name: None,
 386             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 387             verbatim: None,
 388         },
 389         NativeLib {
 390             name: String::from("b"),
 391             new_name: None,
 392             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 393             verbatim: None,
 394         },
 395         NativeLib {
 396             name: String::from("c"),
 397             new_name: None,
 398             kind: NativeLibKind::Unspecified,
 399             verbatim: None,
 400         },
 401     ];
 402
 403     // Change new-name
 404     v4.libs = vec![
 405         NativeLib {
 406             name: String::from("a"),
 407             new_name: None,
 408             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 409             verbatim: None,
 410         },
 411         NativeLib {
 412             name: String::from("b"),
 413             new_name: Some(String::from("X")),
 414             kind: NativeLibKind::Framework { as_needed: None },
 415             verbatim: None,
 416         },
 417         NativeLib {
 418             name: String::from("c"),
 419             new_name: None,
 420             kind: NativeLibKind::Unspecified,
 421             verbatim: None,
 422         },
 423     ];
 424
 425     // Change verbatim
 426     v5.libs = vec![
 427         NativeLib {
 428             name: String::from("a"),
 429             new_name: None,
 430             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 431             verbatim: None,
 432         },
 433         NativeLib {
 434             name: String::from("b"),
 435             new_name: None,
 436             kind: NativeLibKind::Framework { as_needed: None },
 437             verbatim: Some(true),
 438         },
 439         NativeLib {
 440             name: String::from("c"),
 441             new_name: None,
 442             kind: NativeLibKind::Unspecified,
 443             verbatim: None,
 444         },
 445     ];
 446
 447     assert_different_hash(&v1, &v2);
 448     assert_different_hash(&v1, &v3);
 449     assert_different_hash(&v1, &v4);
 450     assert_different_hash(&v1, &v5);
 451 }
 452
 453 #[test]
 454 fn test_native_libs_tracking_hash_different_order() {
 455     let mut v1 = Options::default();
 456     let mut v2 = Options::default();
 457     let mut v3 = Options::default();
 458
 459     // Reference
 460     v1.libs = vec![
 461         NativeLib {
 462             name: String::from("a"),
 463             new_name: None,
 464             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 465             verbatim: None,
 466         },
 467         NativeLib {
 468             name: String::from("b"),
 469             new_name: None,
 470             kind: NativeLibKind::Framework { as_needed: None },
 471             verbatim: None,
 472         },
 473         NativeLib {
 474             name: String::from("c"),
 475             new_name: None,
 476             kind: NativeLibKind::Unspecified,
 477             verbatim: None,
 478         },
 479     ];
 480
 481     v2.libs = vec![
 482         NativeLib {
 483             name: String::from("b"),
 484             new_name: None,
 485             kind: NativeLibKind::Framework { as_needed: None },
 486             verbatim: None,
 487         },
 488         NativeLib {
 489             name: String::from("a"),
 490             new_name: None,
 491             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 492             verbatim: None,
 493         },
 494         NativeLib {
 495             name: String::from("c"),
 496             new_name: None,
 497             kind: NativeLibKind::Unspecified,
 498             verbatim: None,
 499         },
 500     ];
 501
 502     v3.libs = vec![
 503         NativeLib {
 504             name: String::from("c"),
 505             new_name: None,
 506             kind: NativeLibKind::Unspecified,
 507             verbatim: None,
 508         },
 509         NativeLib {
 510             name: String::from("a"),
 511             new_name: None,
 512             kind: NativeLibKind::Static { bundle: None, whole_archive: None },
 513             verbatim: None,
 514         },
 515         NativeLib {
 516             name: String::from("b"),
 517             new_name: None,
 518             kind: NativeLibKind::Framework { as_needed: None },
 519             verbatim: None,
 520         },
 521     ];
 522
 523     // The hash should be order-dependent
 524     assert_different_hash(&v1, &v2);
 525     assert_different_hash(&v1, &v3);
 526     assert_different_hash(&v2, &v3);
 527 }
 528
 529 #[test]
 530 fn test_codegen_options_tracking_hash() {
 531     let reference = Options::default();
 532     let mut opts = Options::default();
 533
 534     macro_rules! untracked {
 535         ($name: ident, $non_default_value: expr) => {
 536             assert_ne!(opts.cg.$name, $non_default_value);
 537             opts.cg.$name = $non_default_value;
 538             assert_same_hash(&reference, &opts);
 539         };
 540     }
 541
 542     // Make sure that changing an [UNTRACKED] option leaves the hash unchanged.
 543     // This list is in alphabetical order.
 544     untracked!(ar, String::from("abc"));
 545     untracked!(codegen_units, Some(42));
 546     untracked!(default_linker_libraries, true);
 547     untracked!(extra_filename, String::from("extra-filename"));
 548     untracked!(incremental, Some(String::from("abc")));
 549     // `link_arg` is omitted because it just forwards to `link_args`.
 550     untracked!(link_args, vec![String::from("abc"), String::from("def")]);
 551     untracked!(link_self_contained, Some(true));
 552     untracked!(linker, Some(PathBuf::from("linker")));
 553     untracked!(linker_flavor, Some(LinkerFlavorCli::Gcc));
 554     untracked!(no_stack_check, true);
 555     untracked!(remark, Passes::Some(vec![String::from("pass1"), String::from("pass2")]));
 556     untracked!(rpath, true);
 557     untracked!(save_temps, true);
 558     untracked!(strip, Strip::Debuginfo);
 559
 560     macro_rules! tracked {
 561         ($name: ident, $non_default_value: expr) => {
 562             opts = reference.clone();
 563             assert_ne!(opts.cg.$name, $non_default_value);
 564             opts.cg.$name = $non_default_value;
 565             assert_different_hash(&reference, &opts);
 566         };
 567     }
 568
 569     // Make sure that changing a [TRACKED] option changes the hash.
 570     // This list is in alphabetical order.
 571     tracked!(code_model, Some(CodeModel::Large));
 572     tracked!(control_flow_guard, CFGuard::Checks);
 573     tracked!(debug_assertions, Some(true));
 574     tracked!(debuginfo, 0xdeadbeef);
 575     tracked!(embed_bitcode, false);
 576     tracked!(force_frame_pointers, Some(false));
 577     tracked!(force_unwind_tables, Some(true));
 578     tracked!(inline_threshold, Some(0xf007ba11));
 579     tracked!(instrument_coverage, Some(InstrumentCoverage::All));
 580     tracked!(linker_plugin_lto, LinkerPluginLto::LinkerPluginAuto);
 581     tracked!(link_dead_code, Some(true));
 582     tracked!(llvm_args, vec![String::from("1"), String::from("2")]);
 583     tracked!(lto, LtoCli::Fat);
 584     tracked!(metadata, vec![String::from("A"), String::from("B")]);
 585     tracked!(no_prepopulate_passes, true);
 586     tracked!(no_redzone, Some(true));
 587     tracked!(no_vectorize_loops, true);
 588     tracked!(no_vectorize_slp, true);
 589     tracked!(opt_level, "3".to_string());
 590     tracked!(overflow_checks, Some(true));
 591     tracked!(panic, Some(PanicStrategy::Abort));
 592     tracked!(passes, vec![String::from("1"), String::from("2")]);
 593     tracked!(prefer_dynamic, true);
 594     tracked!(profile_generate, SwitchWithOptPath::Enabled(None));
 595     tracked!(profile_use, Some(PathBuf::from("abc")));
 596     tracked!(relocation_model, Some(RelocModel::Pic));
 597     tracked!(soft_float, true);
 598     tracked!(split_debuginfo, Some(SplitDebuginfo::Packed));
 599     tracked!(symbol_mangling_version, Some(SymbolManglingVersion::V0));
 600     tracked!(target_cpu, Some(String::from("abc")));
 601     tracked!(target_feature, String::from("all the features, all of them"));
 602 }
 603
 604 #[test]
 605 fn test_top_level_options_tracked_no_crate() {
 606     let reference = Options::default();
 607     let mut opts;
 608
 609     macro_rules! tracked {
 610         ($name: ident, $non_default_value: expr) => {
 611             opts = reference.clone();
 612             assert_ne!(opts.$name, $non_default_value);
 613             opts.$name = $non_default_value;
 614             // The crate hash should be the same
 615             assert_eq!(reference.dep_tracking_hash(true), opts.dep_tracking_hash(true));
 616             // The incremental hash should be different
 617             assert_ne!(reference.dep_tracking_hash(false), opts.dep_tracking_hash(false));
 618         };
 619     }
 620
 621     // Make sure that changing a [TRACKED_NO_CRATE_HASH] option leaves the crate hash unchanged but changes the incremental hash.
 622     // This list is in alphabetical order.
 623     tracked!(remap_path_prefix, vec![("/home/bors/rust".into(), "src".into())]);
 624     tracked!(
 625         real_rust_source_base_dir,
 626         Some("/home/bors/rust/.rustup/toolchains/nightly/lib/rustlib/src/rust".into())
 627     );
 628 }
 629
 630 #[test]
 631 fn test_unstable_options_tracking_hash() {
 632     let reference = Options::default();
 633     let mut opts = Options::default();
 634
 635     macro_rules! untracked {
 636         ($name: ident, $non_default_value: expr) => {
 637             assert_ne!(opts.unstable_opts.$name, $non_default_value);
 638             opts.unstable_opts.$name = $non_default_value;
 639             assert_same_hash(&reference, &opts);
 640         };
 641     }
 642
 643     // Make sure that changing an [UNTRACKED] option leaves the hash unchanged.
 644     // This list is in alphabetical order.
 645     untracked!(assert_incr_state, Some(String::from("loaded")));
 646     untracked!(deduplicate_diagnostics, false);
 647     untracked!(dep_tasks, true);
 648     untracked!(dlltool, Some(PathBuf::from("custom_dlltool.exe")));
 649     untracked!(dont_buffer_diagnostics, true);
 650     untracked!(dump_dep_graph, true);
 651     untracked!(dump_drop_tracking_cfg, Some("cfg.dot".to_string()));
 652     untracked!(dump_mir, Some(String::from("abc")));
 653     untracked!(dump_mir_dataflow, true);
 654     untracked!(dump_mir_dir, String::from("abc"));
 655     untracked!(dump_mir_exclude_pass_number, true);
 656     untracked!(dump_mir_graphviz, true);
 657     untracked!(emit_stack_sizes, true);
 658     untracked!(future_incompat_test, true);
 659     untracked!(hir_stats, true);
 660     untracked!(identify_regions, true);
 661     untracked!(incremental_ignore_spans, true);
 662     untracked!(incremental_info, true);
 663     untracked!(incremental_verify_ich, true);
 664     untracked!(input_stats, true);
 665     untracked!(keep_hygiene_data, true);
 666     untracked!(link_native_libraries, false);
 667     untracked!(llvm_time_trace, true);
 668     untracked!(ls, true);
 669     untracked!(macro_backtrace, true);
 670     untracked!(meta_stats, true);
 671     untracked!(mir_pretty_relative_line_numbers, true);
 672     untracked!(nll_facts, true);
 673     untracked!(no_analysis, true);
 674     untracked!(no_interleave_lints, true);
 675     untracked!(no_leak_check, true);
 676     untracked!(no_parallel_llvm, true);
 677     untracked!(parse_only, true);
 678     untracked!(perf_stats, true);
 679     // `pre_link_arg` is omitted because it just forwards to `pre_link_args`.
 680     untracked!(pre_link_args, vec![String::from("abc"), String::from("def")]);
 681     untracked!(profile_closures, true);
 682     untracked!(print_llvm_passes, true);
 683     untracked!(print_mono_items, Some(String::from("abc")));
 684     untracked!(print_type_sizes, true);
 685     untracked!(proc_macro_backtrace, true);
 686     untracked!(proc_macro_execution_strategy, ProcMacroExecutionStrategy::CrossThread);
 687     untracked!(query_dep_graph, true);
 688     untracked!(save_analysis, true);
 689     untracked!(self_profile, SwitchWithOptPath::Enabled(None));
 690     untracked!(self_profile_events, Some(vec![String::new()]));
 691     untracked!(span_debug, true);
 692     untracked!(span_free_formats, true);
 693     untracked!(temps_dir, Some(String::from("abc")));
 694     untracked!(threads, 99);
 695     untracked!(time, true);
 696     untracked!(time_llvm_passes, true);
 697     untracked!(time_passes, true);
 698     untracked!(trace_macros, true);
 699     untracked!(trim_diagnostic_paths, false);
 700     untracked!(ui_testing, true);
 701     untracked!(unpretty, Some("expanded".to_string()));
 702     untracked!(unstable_options, true);
 703     untracked!(validate_mir, true);
 704     untracked!(verbose, true);
 705
 706     macro_rules! tracked {
 707         ($name: ident, $non_default_value: expr) => {
 708             opts = reference.clone();
 709             assert_ne!(opts.unstable_opts.$name, $non_default_value);
 710             opts.unstable_opts.$name = $non_default_value;
 711             assert_different_hash(&reference, &opts);
 712         };
 713     }
 714
 715     // Make sure that changing a [TRACKED] option changes the hash.
 716     // This list is in alphabetical order.
 717     tracked!(allow_features, Some(vec![String::from("lang_items")]));
 718     tracked!(always_encode_mir, true);
 719     tracked!(asm_comments, true);
 720     tracked!(assume_incomplete_release, true);
 721     tracked!(binary_dep_depinfo, true);
 722     tracked!(box_noalias, Some(false));
 723     tracked!(
 724         branch_protection,
 725         Some(BranchProtection {
 726             bti: true,
 727             pac_ret: Some(PacRet { leaf: true, key: PAuthKey::B })
 728         })
 729     );
 730     tracked!(chalk, true);
 731     tracked!(codegen_backend, Some("abc".to_string()));
 732     tracked!(crate_attr, vec!["abc".to_string()]);
 733     tracked!(debug_info_for_profiling, true);
 734     tracked!(debug_macros, true);
 735     tracked!(dep_info_omit_d_target, true);
 736     tracked!(drop_tracking, true);
 737     tracked!(export_executable_symbols, true);
 738     tracked!(dual_proc_macros, true);
 739     tracked!(dwarf_version, Some(5));
 740     tracked!(emit_thin_lto, false);
 741     tracked!(fewer_names, Some(true));
 742     tracked!(force_unstable_if_unmarked, true);
 743     tracked!(fuel, Some(("abc".to_string(), 99)));
 744     tracked!(function_sections, Some(false));
 745     tracked!(human_readable_cgu_names, true);
 746     tracked!(inline_in_all_cgus, Some(true));
 747     tracked!(inline_mir, Some(true));
 748     tracked!(inline_mir_hint_threshold, Some(123));
 749     tracked!(inline_mir_threshold, Some(123));
 750     tracked!(instrument_coverage, Some(InstrumentCoverage::All));
 751     tracked!(instrument_mcount, true);
 752     tracked!(link_only, true);
 753     tracked!(llvm_plugins, vec![String::from("plugin_name")]);
 754     tracked!(location_detail, LocationDetail { file: true, line: false, column: false });
 755     tracked!(merge_functions, Some(MergeFunctions::Disabled));
 756     tracked!(mir_emit_retag, true);
 757     tracked!(mir_enable_passes, vec![("DestProp".to_string(), false)]);
 758     tracked!(mir_opt_level, Some(4));
 759     tracked!(move_size_limit, Some(4096));
 760     tracked!(mutable_noalias, Some(true));
 761     tracked!(new_llvm_pass_manager, Some(true));
 762     tracked!(no_generate_arange_section, true);
 763     tracked!(no_link, true);
 764     tracked!(no_unique_section_names, true);
 765     tracked!(no_profiler_runtime, true);
 766     tracked!(oom, OomStrategy::Panic);
 767     tracked!(osx_rpath_install_name, true);
 768     tracked!(panic_abort_tests, true);
 769     tracked!(panic_in_drop, PanicStrategy::Abort);
 770     tracked!(pick_stable_methods_before_any_unstable, false);
 771     tracked!(plt, Some(true));
 772     tracked!(polonius, true);
 773     tracked!(precise_enum_drop_elaboration, false);
 774     tracked!(print_fuel, Some("abc".to_string()));
 775     tracked!(profile, true);
 776     tracked!(profile_emit, Some(PathBuf::from("abc")));
 777     tracked!(profiler_runtime, "abc".to_string());
 778     tracked!(profile_sample_use, Some(PathBuf::from("abc")));
 779     tracked!(relax_elf_relocations, Some(true));
 780     tracked!(relro_level, Some(RelroLevel::Full));
 781     tracked!(remap_cwd_prefix, Some(PathBuf::from("abc")));
 782     tracked!(report_delayed_bugs, true);
 783     tracked!(sanitizer, SanitizerSet::ADDRESS);
 784     tracked!(sanitizer_memory_track_origins, 2);
 785     tracked!(sanitizer_recover, SanitizerSet::ADDRESS);
 786     tracked!(saturating_float_casts, Some(true));
 787     tracked!(share_generics, Some(true));
 788     tracked!(show_span, Some(String::from("abc")));
 789     tracked!(simulate_remapped_rust_src_base, Some(PathBuf::from("/rustc/abc")));
 790     tracked!(src_hash_algorithm, Some(SourceFileHashAlgorithm::Sha1));
 791     tracked!(stack_protector, StackProtector::All);
 792     tracked!(symbol_mangling_version, Some(SymbolManglingVersion::V0));
 793     tracked!(teach, true);
 794     tracked!(thinlto, Some(true));
 795     tracked!(thir_unsafeck, true);
 796     tracked!(tls_model, Some(TlsModel::GeneralDynamic));
 797     tracked!(translate_remapped_path_to_local_path, false);
 798     tracked!(trap_unreachable, Some(false));
 799     tracked!(treat_err_as_bug, NonZeroUsize::new(1));
 800     tracked!(tune_cpu, Some(String::from("abc")));
 801     tracked!(uninit_const_chunk_threshold, 123);
 802     tracked!(unleash_the_miri_inside_of_you, true);
 803     tracked!(use_ctors_section, Some(true));
 804     tracked!(verify_llvm_ir, true);
 805     tracked!(virtual_function_elimination, true);
 806     tracked!(wasi_exec_model, Some(WasiExecModel::Reactor));
 807
 808     macro_rules! tracked_no_crate_hash {
 809         ($name: ident, $non_default_value: expr) => {
 810             opts = reference.clone();
 811             assert_ne!(opts.unstable_opts.$name, $non_default_value);
 812             opts.unstable_opts.$name = $non_default_value;
 813             assert_non_crate_hash_different(&reference, &opts);
 814         };
 815     }
 816     tracked_no_crate_hash!(no_codegen, true);
 817 }
 818
 819 #[test]
 820 fn test_edition_parsing() {
 821     // test default edition
 822     let options = Options::default();
 823     assert!(options.edition == DEFAULT_EDITION);
 824
 825     let matches = optgroups().parse(&["--edition=2018".to_string()]).unwrap();
 826     let (sessopts, _) = build_session_options_and_crate_config(matches);
 827     assert!(sessopts.edition == Edition::Edition2018)
 828 }