1 use std::collections::HashSet;
4 use std::io::prelude::*;
5 use std::io::BufReader;
6 use std::path::{Path, PathBuf};
10 use crate::common::{CompareMode, Config, Debugger, FailMode, Mode, PanicStrategy, PassMode};
12 use crate::{extract_cdb_version, extract_gdb_version};
17 /// The result of parse_cfg_name_directive.
18 #[derive(Clone, Copy, PartialEq, Debug)]
19 enum ParsedNameDirective {
26 /// Properties which must be known very early, before actually running
29 pub struct EarlyProps {
31 pub aux_crate: Vec<(String, String)>,
32 pub revisions: Vec<String>,
36 pub fn from_file(config: &Config, testfile: &Path) -> Self {
37 let file = File::open(testfile).expect("open test file to parse earlyprops");
38 Self::from_reader(config, testfile, file)
41 pub fn from_reader<R: Read>(config: &Config, testfile: &Path, rdr: R) -> Self {
42 let mut props = EarlyProps::default();
43 iter_header(testfile, rdr, &mut |_, ln| {
44 if let Some(s) = config.parse_aux_build(ln) {
47 if let Some(ac) = config.parse_aux_crate(ln) {
48 props.aux_crate.push(ac);
50 config.parse_and_update_revisions(ln, &mut props.revisions);
56 #[derive(Clone, Debug)]
57 pub struct TestProps {
58 // Lines that should be expected, in order, on standard out
59 pub error_patterns: Vec<String>,
60 // Extra flags to pass to the compiler
61 pub compile_flags: Vec<String>,
62 // Extra flags to pass when the compiled code is run (such as --bench)
63 pub run_flags: Option<String>,
64 // If present, the name of a file that this test should match when
66 pub pp_exact: Option<PathBuf>,
67 // Other crates that should be compiled (typically from the same
68 // directory as the test, but for backwards compatibility reasons
69 // we also check the auxiliary directory)
70 pub aux_builds: Vec<String>,
71 // Similar to `aux_builds`, but a list of NAME=somelib.rs of dependencies
72 // to build and pass with the `--extern` flag.
73 pub aux_crates: Vec<(String, String)>,
74 // Environment settings to use for compiling
75 pub rustc_env: Vec<(String, String)>,
76 // Environment variables to unset prior to compiling.
77 // Variables are unset before applying 'rustc_env'.
78 pub unset_rustc_env: Vec<String>,
79 // Environment settings to use during execution
80 pub exec_env: Vec<(String, String)>,
81 // Build documentation for all specified aux-builds as well
82 pub build_aux_docs: bool,
83 // Flag to force a crate to be built with the host architecture
85 // Check stdout for error-pattern output as well as stderr
86 pub check_stdout: bool,
87 // Check stdout & stderr for output of run-pass test
88 pub check_run_results: bool,
89 // For UI tests, allows compiler to generate arbitrary output to stdout
90 pub dont_check_compiler_stdout: bool,
91 // For UI tests, allows compiler to generate arbitrary output to stderr
92 pub dont_check_compiler_stderr: bool,
93 // Don't force a --crate-type=dylib flag on the command line
95 // Set this for example if you have an auxiliary test file that contains
96 // a proc-macro and needs `#![crate_type = "proc-macro"]`. This ensures
97 // that the aux file is compiled as a `proc-macro` and not as a `dylib`.
98 pub no_prefer_dynamic: bool,
99 // Run -Zunpretty expanded when running pretty printing tests
100 pub pretty_expanded: bool,
101 // Which pretty mode are we testing with, default to 'normal'
102 pub pretty_mode: String,
103 // Only compare pretty output and don't try compiling
104 pub pretty_compare_only: bool,
105 // Patterns which must not appear in the output of a cfail test.
106 pub forbid_output: Vec<String>,
107 // Revisions to test for incremental compilation.
108 pub revisions: Vec<String>,
109 // Directory (if any) to use for incremental compilation. This is
110 // not set by end-users; rather it is set by the incremental
111 // testing harness and used when generating compilation
112 // arguments. (In particular, it propagates to the aux-builds.)
113 pub incremental_dir: Option<PathBuf>,
114 // If `true`, this test will use incremental compilation.
116 // This can be set manually with the `incremental` header, or implicitly
117 // by being a part of an incremental mode test. Using the `incremental`
118 // header should be avoided if possible; using an incremental mode test is
119 // preferred. Incremental mode tests support multiple passes, which can
120 // verify that the incremental cache can be loaded properly after being
121 // created. Just setting the header will only verify the behavior with
122 // creating an incremental cache, but doesn't check that it is created
125 // Compiletest will create the incremental directory, and ensure it is
126 // empty before the test starts. Incremental mode tests will reuse the
127 // incremental directory between passes in the same test.
128 pub incremental: bool,
129 // How far should the test proceed while still passing.
130 pass_mode: Option<PassMode>,
131 // Ignore `--pass` overrides from the command line for this test.
133 // How far this test should proceed to start failing.
134 pub fail_mode: Option<FailMode>,
135 // rustdoc will test the output of the `--test` option
136 pub check_test_line_numbers_match: bool,
137 // customized normalization rules
138 pub normalize_stdout: Vec<(String, String)>,
139 pub normalize_stderr: Vec<(String, String)>,
140 pub failure_status: i32,
141 // Whether or not `rustfix` should apply the `CodeSuggestion`s of this test and compile the
142 // resulting Rust code.
143 pub run_rustfix: bool,
144 // If true, `rustfix` will only apply `MachineApplicable` suggestions.
145 pub rustfix_only_machine_applicable: bool,
146 pub assembly_output: Option<String>,
147 // If true, the test is expected to ICE
148 pub should_ice: bool,
149 // If true, the stderr is expected to be different across bit-widths.
150 pub stderr_per_bitwidth: bool,
154 pub fn new() -> Self {
156 error_patterns: vec![],
157 compile_flags: vec![],
164 unset_rustc_env: vec![],
166 build_aux_docs: false,
169 check_run_results: false,
170 dont_check_compiler_stdout: false,
171 dont_check_compiler_stderr: false,
172 no_prefer_dynamic: false,
173 pretty_expanded: false,
174 pretty_mode: "normal".to_string(),
175 pretty_compare_only: false,
176 forbid_output: vec![],
177 incremental_dir: None,
182 check_test_line_numbers_match: false,
183 normalize_stdout: vec![],
184 normalize_stderr: vec![],
187 rustfix_only_machine_applicable: false,
188 assembly_output: None,
190 stderr_per_bitwidth: false,
194 pub fn from_aux_file(&self, testfile: &Path, cfg: Option<&str>, config: &Config) -> Self {
195 let mut props = TestProps::new();
197 // copy over select properties to the aux build:
198 props.incremental_dir = self.incremental_dir.clone();
199 props.load_from(testfile, cfg, config);
204 pub fn from_file(testfile: &Path, cfg: Option<&str>, config: &Config) -> Self {
205 let mut props = TestProps::new();
206 props.load_from(testfile, cfg, config);
208 match (props.pass_mode, props.fail_mode) {
209 (None, None) => props.fail_mode = Some(FailMode::Check),
210 (Some(_), None) | (None, Some(_)) => {}
211 (Some(_), Some(_)) => panic!("cannot use a *-fail and *-pass mode together"),
217 /// Loads properties from `testfile` into `props`. If a property is
218 /// tied to a particular revision `foo` (indicated by writing
219 /// `//[foo]`), then the property is ignored unless `cfg` is
221 fn load_from(&mut self, testfile: &Path, cfg: Option<&str>, config: &Config) {
222 let mut has_edition = false;
223 if !testfile.is_dir() {
224 let file = File::open(testfile).unwrap();
226 iter_header(testfile, file, &mut |revision, ln| {
227 if revision.is_some() && revision != cfg {
231 if let Some(ep) = config.parse_error_pattern(ln) {
232 self.error_patterns.push(ep);
235 if let Some(flags) = config.parse_compile_flags(ln) {
236 self.compile_flags.extend(flags.split_whitespace().map(|s| s.to_owned()));
239 if let Some(edition) = config.parse_edition(ln) {
240 self.compile_flags.push(format!("--edition={}", edition));
244 config.parse_and_update_revisions(ln, &mut self.revisions);
246 if self.run_flags.is_none() {
247 self.run_flags = config.parse_run_flags(ln);
250 if self.pp_exact.is_none() {
251 self.pp_exact = config.parse_pp_exact(ln, testfile);
254 if !self.should_ice {
255 self.should_ice = config.parse_should_ice(ln);
258 if !self.build_aux_docs {
259 self.build_aux_docs = config.parse_build_aux_docs(ln);
262 if !self.force_host {
263 self.force_host = config.parse_force_host(ln);
266 if !self.check_stdout {
267 self.check_stdout = config.parse_check_stdout(ln);
270 if !self.check_run_results {
271 self.check_run_results = config.parse_check_run_results(ln);
274 if !self.dont_check_compiler_stdout {
275 self.dont_check_compiler_stdout = config.parse_dont_check_compiler_stdout(ln);
278 if !self.dont_check_compiler_stderr {
279 self.dont_check_compiler_stderr = config.parse_dont_check_compiler_stderr(ln);
282 if !self.no_prefer_dynamic {
283 self.no_prefer_dynamic = config.parse_no_prefer_dynamic(ln);
286 if !self.pretty_expanded {
287 self.pretty_expanded = config.parse_pretty_expanded(ln);
290 if let Some(m) = config.parse_pretty_mode(ln) {
291 self.pretty_mode = m;
294 if !self.pretty_compare_only {
295 self.pretty_compare_only = config.parse_pretty_compare_only(ln);
298 if let Some(ab) = config.parse_aux_build(ln) {
299 self.aux_builds.push(ab);
302 if let Some(ac) = config.parse_aux_crate(ln) {
303 self.aux_crates.push(ac);
306 if let Some(ee) = config.parse_env(ln, "exec-env") {
307 self.exec_env.push(ee);
310 if let Some(ee) = config.parse_env(ln, "rustc-env") {
311 self.rustc_env.push(ee);
314 if let Some(ev) = config.parse_name_value_directive(ln, "unset-rustc-env") {
315 self.unset_rustc_env.push(ev);
318 if let Some(of) = config.parse_forbid_output(ln) {
319 self.forbid_output.push(of);
322 if !self.check_test_line_numbers_match {
323 self.check_test_line_numbers_match =
324 config.parse_check_test_line_numbers_match(ln);
327 self.update_pass_mode(ln, cfg, config);
328 self.update_fail_mode(ln, config);
330 if !self.ignore_pass {
331 self.ignore_pass = config.parse_ignore_pass(ln);
334 if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stdout") {
335 self.normalize_stdout.push(rule);
337 if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stderr") {
338 self.normalize_stderr.push(rule);
341 if let Some(code) = config.parse_failure_status(ln) {
342 self.failure_status = code;
345 if !self.run_rustfix {
346 self.run_rustfix = config.parse_run_rustfix(ln);
349 if !self.rustfix_only_machine_applicable {
350 self.rustfix_only_machine_applicable =
351 config.parse_rustfix_only_machine_applicable(ln);
354 if self.assembly_output.is_none() {
355 self.assembly_output = config.parse_assembly_output(ln);
358 if !self.stderr_per_bitwidth {
359 self.stderr_per_bitwidth = config.parse_stderr_per_bitwidth(ln);
362 if !self.incremental {
363 self.incremental = config.parse_incremental(ln);
368 if self.failure_status == -1 {
369 self.failure_status = 1;
372 self.failure_status = 101;
375 if config.mode == Mode::Incremental {
376 self.incremental = true;
379 for key in &["RUST_TEST_NOCAPTURE", "RUST_TEST_THREADS"] {
380 if let Ok(val) = env::var(key) {
381 if self.exec_env.iter().find(|&&(ref x, _)| x == key).is_none() {
382 self.exec_env.push(((*key).to_owned(), val))
387 if let (Some(edition), false) = (&config.edition, has_edition) {
388 self.compile_flags.push(format!("--edition={}", edition));
392 fn update_fail_mode(&mut self, ln: &str, config: &Config) {
393 let check_ui = |mode: &str| {
394 if config.mode != Mode::Ui {
395 panic!("`{}-fail` header is only supported in UI tests", mode);
398 if config.mode == Mode::Ui && config.parse_name_directive(ln, "compile-fail") {
399 panic!("`compile-fail` header is useless in UI tests");
401 let fail_mode = if config.parse_name_directive(ln, "check-fail") {
403 Some(FailMode::Check)
404 } else if config.parse_name_directive(ln, "build-fail") {
406 Some(FailMode::Build)
407 } else if config.parse_name_directive(ln, "run-fail") {
413 match (self.fail_mode, fail_mode) {
414 (None, Some(_)) => self.fail_mode = fail_mode,
415 (Some(_), Some(_)) => panic!("multiple `*-fail` headers in a single test"),
420 fn update_pass_mode(&mut self, ln: &str, revision: Option<&str>, config: &Config) {
421 let check_no_run = |s| {
422 if config.mode != Mode::Ui && config.mode != Mode::Incremental {
423 panic!("`{}` header is only supported in UI and incremental tests", s);
425 if config.mode == Mode::Incremental
426 && !revision.map_or(false, |r| r.starts_with("cfail"))
427 && !self.revisions.iter().all(|r| r.starts_with("cfail"))
429 panic!("`{}` header is only supported in `cfail` incremental tests", s);
432 let pass_mode = if config.parse_name_directive(ln, "check-pass") {
433 check_no_run("check-pass");
434 Some(PassMode::Check)
435 } else if config.parse_name_directive(ln, "build-pass") {
436 check_no_run("build-pass");
437 Some(PassMode::Build)
438 } else if config.parse_name_directive(ln, "run-pass") {
439 if config.mode != Mode::Ui {
440 panic!("`run-pass` header is only supported in UI tests")
446 match (self.pass_mode, pass_mode) {
447 (None, Some(_)) => self.pass_mode = pass_mode,
448 (Some(_), Some(_)) => panic!("multiple `*-pass` headers in a single test"),
453 pub fn pass_mode(&self, config: &Config) -> Option<PassMode> {
454 if !self.ignore_pass && self.fail_mode.is_none() && config.mode == Mode::Ui {
455 if let (mode @ Some(_), Some(_)) = (config.force_pass_mode, self.pass_mode) {
462 // does not consider CLI override for pass mode
463 pub fn local_pass_mode(&self) -> Option<PassMode> {
468 fn iter_header<R: Read>(testfile: &Path, rdr: R, it: &mut dyn FnMut(Option<&str>, &str)) {
469 if testfile.is_dir() {
473 let comment = if testfile.extension().map(|e| e == "rs") == Some(true) { "//" } else { "#" };
475 let mut rdr = BufReader::new(rdr);
476 let mut ln = String::new();
480 if rdr.read_line(&mut ln).unwrap() == 0 {
484 // Assume that any directives will be found before the first
485 // module or function. This doesn't seem to be an optimization
486 // with a warm page cache. Maybe with a cold one.
488 if ln.starts_with("fn") || ln.starts_with("mod") {
490 } else if ln.starts_with(comment) && ln[comment.len()..].trim_start().starts_with('[') {
491 // A comment like `//[foo]` is specific to revision `foo`
492 if let Some(close_brace) = ln.find(']') {
493 let open_brace = ln.find('[').unwrap();
494 let lncfg = &ln[open_brace + 1..close_brace];
495 it(Some(lncfg), ln[(close_brace + 1)..].trim_start());
497 panic!("malformed condition directive: expected `{}[foo]`, found `{}`", comment, ln)
499 } else if ln.starts_with(comment) {
500 it(None, ln[comment.len()..].trim_start());
506 fn parse_should_ice(&self, line: &str) -> bool {
507 self.parse_name_directive(line, "should-ice")
509 fn parse_error_pattern(&self, line: &str) -> Option<String> {
510 self.parse_name_value_directive(line, "error-pattern")
513 fn parse_forbid_output(&self, line: &str) -> Option<String> {
514 self.parse_name_value_directive(line, "forbid-output")
517 fn parse_aux_build(&self, line: &str) -> Option<String> {
518 self.parse_name_value_directive(line, "aux-build").map(|r| r.trim().to_string())
521 fn parse_aux_crate(&self, line: &str) -> Option<(String, String)> {
522 self.parse_name_value_directive(line, "aux-crate").map(|r| {
523 let mut parts = r.trim().splitn(2, '=');
525 parts.next().expect("missing aux-crate name (e.g. log=log.rs)").to_string(),
526 parts.next().expect("missing aux-crate value (e.g. log=log.rs)").to_string(),
531 fn parse_compile_flags(&self, line: &str) -> Option<String> {
532 self.parse_name_value_directive(line, "compile-flags")
535 fn parse_and_update_revisions(&self, line: &str, existing: &mut Vec<String>) {
536 if let Some(raw) = self.parse_name_value_directive(line, "revisions") {
537 let mut duplicates: HashSet<_> = existing.iter().cloned().collect();
538 for revision in raw.split_whitespace().map(|r| r.to_string()) {
539 if !duplicates.insert(revision.clone()) {
540 panic!("Duplicate revision: `{}` in line `{}`", revision, raw);
542 existing.push(revision);
547 fn parse_run_flags(&self, line: &str) -> Option<String> {
548 self.parse_name_value_directive(line, "run-flags")
551 fn parse_force_host(&self, line: &str) -> bool {
552 self.parse_name_directive(line, "force-host")
555 fn parse_build_aux_docs(&self, line: &str) -> bool {
556 self.parse_name_directive(line, "build-aux-docs")
559 fn parse_check_stdout(&self, line: &str) -> bool {
560 self.parse_name_directive(line, "check-stdout")
563 fn parse_check_run_results(&self, line: &str) -> bool {
564 self.parse_name_directive(line, "check-run-results")
567 fn parse_dont_check_compiler_stdout(&self, line: &str) -> bool {
568 self.parse_name_directive(line, "dont-check-compiler-stdout")
571 fn parse_dont_check_compiler_stderr(&self, line: &str) -> bool {
572 self.parse_name_directive(line, "dont-check-compiler-stderr")
575 fn parse_no_prefer_dynamic(&self, line: &str) -> bool {
576 self.parse_name_directive(line, "no-prefer-dynamic")
579 fn parse_pretty_expanded(&self, line: &str) -> bool {
580 self.parse_name_directive(line, "pretty-expanded")
583 fn parse_pretty_mode(&self, line: &str) -> Option<String> {
584 self.parse_name_value_directive(line, "pretty-mode")
587 fn parse_pretty_compare_only(&self, line: &str) -> bool {
588 self.parse_name_directive(line, "pretty-compare-only")
591 fn parse_failure_status(&self, line: &str) -> Option<i32> {
592 match self.parse_name_value_directive(line, "failure-status") {
593 Some(code) => code.trim().parse::<i32>().ok(),
598 fn parse_check_test_line_numbers_match(&self, line: &str) -> bool {
599 self.parse_name_directive(line, "check-test-line-numbers-match")
602 fn parse_ignore_pass(&self, line: &str) -> bool {
603 self.parse_name_directive(line, "ignore-pass")
606 fn parse_stderr_per_bitwidth(&self, line: &str) -> bool {
607 self.parse_name_directive(line, "stderr-per-bitwidth")
610 fn parse_assembly_output(&self, line: &str) -> Option<String> {
611 self.parse_name_value_directive(line, "assembly-output").map(|r| r.trim().to_string())
614 fn parse_env(&self, line: &str, name: &str) -> Option<(String, String)> {
615 self.parse_name_value_directive(line, name).map(|nv| {
616 // nv is either FOO or FOO=BAR
617 let mut strs: Vec<String> = nv.splitn(2, '=').map(str::to_owned).collect();
620 1 => (strs.pop().unwrap(), String::new()),
622 let end = strs.pop().unwrap();
623 (strs.pop().unwrap(), end)
625 n => panic!("Expected 1 or 2 strings, not {}", n),
630 fn parse_pp_exact(&self, line: &str, testfile: &Path) -> Option<PathBuf> {
631 if let Some(s) = self.parse_name_value_directive(line, "pp-exact") {
632 Some(PathBuf::from(&s))
633 } else if self.parse_name_directive(line, "pp-exact") {
634 testfile.file_name().map(PathBuf::from)
640 fn parse_custom_normalization(&self, mut line: &str, prefix: &str) -> Option<(String, String)> {
641 if self.parse_cfg_name_directive(line, prefix) == ParsedNameDirective::Match {
642 let from = parse_normalization_string(&mut line)?;
643 let to = parse_normalization_string(&mut line)?;
650 fn parse_needs_matching_clang(&self, line: &str) -> bool {
651 self.parse_name_directive(line, "needs-matching-clang")
654 fn parse_needs_profiler_support(&self, line: &str) -> bool {
655 self.parse_name_directive(line, "needs-profiler-support")
658 /// Parses a name-value directive which contains config-specific information, e.g., `ignore-x86`
659 /// or `normalize-stderr-32bit`.
660 fn parse_cfg_name_directive(&self, line: &str, prefix: &str) -> ParsedNameDirective {
661 if !line.as_bytes().starts_with(prefix.as_bytes()) {
662 return ParsedNameDirective::NoMatch;
664 if line.as_bytes().get(prefix.len()) != Some(&b'-') {
665 return ParsedNameDirective::NoMatch;
668 let name = line[prefix.len() + 1..].split(&[':', ' '][..]).next().unwrap();
670 let is_match = name == "test" ||
671 self.target == name || // triple
672 util::matches_os(&self.target, name) || // target
673 util::matches_env(&self.target, name) || // env
674 self.target.ends_with(name) || // target and env
675 name == util::get_arch(&self.target) || // architecture
676 name == util::get_pointer_width(&self.target) || // pointer width
677 name == self.stage_id.split('-').next().unwrap() || // stage
678 name == self.channel || // channel
679 (self.target != self.host && name == "cross-compile") ||
680 (name == "endian-big" && util::is_big_endian(&self.target)) ||
681 (self.remote_test_client.is_some() && name == "remote") ||
682 match self.compare_mode {
683 Some(CompareMode::Nll) => name == "compare-mode-nll",
684 Some(CompareMode::Polonius) => name == "compare-mode-polonius",
685 Some(CompareMode::Chalk) => name == "compare-mode-chalk",
686 Some(CompareMode::SplitDwarf) => name == "compare-mode-split-dwarf",
687 Some(CompareMode::SplitDwarfSingle) => name == "compare-mode-split-dwarf-single",
690 (cfg!(debug_assertions) && name == "debug") ||
691 match self.debugger {
692 Some(Debugger::Cdb) => name == "cdb",
693 Some(Debugger::Gdb) => name == "gdb",
694 Some(Debugger::Lldb) => name == "lldb",
698 if is_match { ParsedNameDirective::Match } else { ParsedNameDirective::NoMatch }
701 fn has_cfg_prefix(&self, line: &str, prefix: &str) -> bool {
702 // returns whether this line contains this prefix or not. For prefix
703 // "ignore", returns true if line says "ignore-x86_64", "ignore-arch",
704 // "ignore-android" etc.
705 line.starts_with(prefix) && line.as_bytes().get(prefix.len()) == Some(&b'-')
708 fn parse_name_directive(&self, line: &str, directive: &str) -> bool {
709 // Ensure the directive is a whole word. Do not match "ignore-x86" when
710 // the line says "ignore-x86_64".
711 line.starts_with(directive)
712 && matches!(line.as_bytes().get(directive.len()), None | Some(&b' ') | Some(&b':'))
715 pub fn parse_name_value_directive(&self, line: &str, directive: &str) -> Option<String> {
716 let colon = directive.len();
717 if line.starts_with(directive) && line.as_bytes().get(colon) == Some(&b':') {
718 let value = line[(colon + 1)..].to_owned();
719 debug!("{}: {}", directive, value);
720 Some(expand_variables(value, self))
726 pub fn find_rust_src_root(&self) -> Option<PathBuf> {
727 let mut path = self.src_base.clone();
728 let path_postfix = Path::new("src/etc/lldb_batchmode.py");
731 if path.join(&path_postfix).is_file() {
739 fn parse_run_rustfix(&self, line: &str) -> bool {
740 self.parse_name_directive(line, "run-rustfix")
743 fn parse_rustfix_only_machine_applicable(&self, line: &str) -> bool {
744 self.parse_name_directive(line, "rustfix-only-machine-applicable")
747 fn parse_edition(&self, line: &str) -> Option<String> {
748 self.parse_name_value_directive(line, "edition")
751 fn parse_incremental(&self, line: &str) -> bool {
752 self.parse_name_directive(line, "incremental")
756 fn expand_variables(mut value: String, config: &Config) -> String {
757 const CWD: &str = "{{cwd}}";
758 const SRC_BASE: &str = "{{src-base}}";
759 const BUILD_BASE: &str = "{{build-base}}";
761 if value.contains(CWD) {
762 let cwd = env::current_dir().unwrap();
763 value = value.replace(CWD, &cwd.to_string_lossy());
766 if value.contains(SRC_BASE) {
767 value = value.replace(SRC_BASE, &config.src_base.to_string_lossy());
770 if value.contains(BUILD_BASE) {
771 value = value.replace(BUILD_BASE, &config.build_base.to_string_lossy());
777 /// Finds the next quoted string `"..."` in `line`, and extract the content from it. Move the `line`
778 /// variable after the end of the quoted string.
783 /// let mut s = "normalize-stderr-32bit: \"something (32 bits)\" -> \"something ($WORD bits)\".";
784 /// let first = parse_normalization_string(&mut s);
785 /// assert_eq!(first, Some("something (32 bits)".to_owned()));
786 /// assert_eq!(s, " -> \"something ($WORD bits)\".");
788 fn parse_normalization_string(line: &mut &str) -> Option<String> {
789 // FIXME support escapes in strings.
790 let begin = line.find('"')? + 1;
791 let end = line[begin..].find('"')? + begin;
792 let result = line[begin..end].to_owned();
793 *line = &line[end + 1..];
797 pub fn extract_llvm_version(version: &str) -> Option<u32> {
798 let pat = |c: char| !c.is_ascii_digit() && c != '.';
799 let version_without_suffix = match version.find(pat) {
800 Some(pos) => &version[..pos],
803 let components: Vec<u32> = version_without_suffix
805 .map(|s| s.parse().expect("Malformed version component"))
807 let version = match *components {
809 [a, b] => a * 10_000 + b * 100,
810 [a, b, c] => a * 10_000 + b * 100 + c,
811 _ => panic!("Malformed version"),
816 /// Takes a directive of the form "<version1> [- <version2>]",
817 /// returns the numeric representation of <version1> and <version2> as
818 /// tuple: (<version1> as u32, <version2> as u32)
820 /// If the <version2> part is omitted, the second component of the tuple
821 /// is the same as <version1>.
822 fn extract_version_range<F>(line: &str, parse: F) -> Option<(u32, u32)>
824 F: Fn(&str) -> Option<u32>,
826 let mut splits = line.splitn(2, "- ").map(str::trim);
827 let min = splits.next().unwrap();
828 if min.ends_with('-') {
832 let max = splits.next();
838 let min = parse(min)?;
839 let max = match max {
840 Some(max) if max.is_empty() => return None,
841 Some(max) => parse(max)?,
848 pub fn make_test_description<R: Read>(
850 name: test::TestName,
854 ) -> test::TestDesc {
855 let mut ignore = false;
856 let mut should_fail = false;
858 let rustc_has_profiler_support = env::var_os("RUSTC_PROFILER_SUPPORT").is_some();
859 let rustc_has_sanitizer_support = env::var_os("RUSTC_SANITIZER_SUPPORT").is_some();
860 let has_asm_support = util::has_asm_support(&config.target);
861 let has_asan = util::ASAN_SUPPORTED_TARGETS.contains(&&*config.target);
862 let has_lsan = util::LSAN_SUPPORTED_TARGETS.contains(&&*config.target);
863 let has_msan = util::MSAN_SUPPORTED_TARGETS.contains(&&*config.target);
864 let has_tsan = util::TSAN_SUPPORTED_TARGETS.contains(&&*config.target);
865 let has_hwasan = util::HWASAN_SUPPORTED_TARGETS.contains(&&*config.target);
866 // for `-Z gcc-ld=lld`
867 let has_rust_lld = config
870 .join(&config.target)
873 .join(if config.host.contains("windows") { "ld.exe" } else { "ld" })
875 iter_header(path, src, &mut |revision, ln| {
876 if revision.is_some() && revision != cfg {
879 ignore = match config.parse_cfg_name_directive(ln, "ignore") {
880 ParsedNameDirective::Match => true,
881 ParsedNameDirective::NoMatch => ignore,
883 if config.has_cfg_prefix(ln, "only") {
884 ignore = match config.parse_cfg_name_directive(ln, "only") {
885 ParsedNameDirective::Match => ignore,
886 ParsedNameDirective::NoMatch => true,
889 ignore |= ignore_llvm(config, ln);
891 config.run_clang_based_tests_with.is_none() && config.parse_needs_matching_clang(ln);
892 ignore |= !has_asm_support && config.parse_name_directive(ln, "needs-asm-support");
893 ignore |= !rustc_has_profiler_support && config.parse_needs_profiler_support(ln);
894 ignore |= !config.run_enabled() && config.parse_name_directive(ln, "needs-run-enabled");
895 ignore |= !rustc_has_sanitizer_support
896 && config.parse_name_directive(ln, "needs-sanitizer-support");
897 ignore |= !has_asan && config.parse_name_directive(ln, "needs-sanitizer-address");
898 ignore |= !has_lsan && config.parse_name_directive(ln, "needs-sanitizer-leak");
899 ignore |= !has_msan && config.parse_name_directive(ln, "needs-sanitizer-memory");
900 ignore |= !has_tsan && config.parse_name_directive(ln, "needs-sanitizer-thread");
901 ignore |= !has_hwasan && config.parse_name_directive(ln, "needs-sanitizer-hwaddress");
902 ignore |= config.target_panic == PanicStrategy::Abort
903 && config.parse_name_directive(ln, "needs-unwind");
904 ignore |= config.target == "wasm32-unknown-unknown" && config.parse_check_run_results(ln);
905 ignore |= config.debugger == Some(Debugger::Cdb) && ignore_cdb(config, ln);
906 ignore |= config.debugger == Some(Debugger::Gdb) && ignore_gdb(config, ln);
907 ignore |= config.debugger == Some(Debugger::Lldb) && ignore_lldb(config, ln);
908 ignore |= !has_rust_lld && config.parse_name_directive(ln, "needs-rust-lld");
909 should_fail |= config.parse_name_directive(ln, "should-fail");
912 // The `should-fail` annotation doesn't apply to pretty tests,
913 // since we run the pretty printer across all tests by default.
914 // If desired, we could add a `should-fail-pretty` annotation.
915 let should_panic = match config.mode {
916 crate::common::Pretty => test::ShouldPanic::No,
917 _ if should_fail => test::ShouldPanic::Yes,
918 _ => test::ShouldPanic::No,
928 test_type: test::TestType::Unknown,
932 fn ignore_cdb(config: &Config, line: &str) -> bool {
933 if let Some(actual_version) = config.cdb_version {
934 if let Some(min_version) = line.strip_prefix("min-cdb-version:").map(str::trim) {
935 let min_version = extract_cdb_version(min_version).unwrap_or_else(|| {
936 panic!("couldn't parse version range: {:?}", min_version);
939 // Ignore if actual version is smaller than the minimum
941 return actual_version < min_version;
947 fn ignore_gdb(config: &Config, line: &str) -> bool {
948 if let Some(actual_version) = config.gdb_version {
949 if let Some(rest) = line.strip_prefix("min-gdb-version:").map(str::trim) {
950 let (start_ver, end_ver) = extract_version_range(rest, extract_gdb_version)
952 panic!("couldn't parse version range: {:?}", rest);
955 if start_ver != end_ver {
956 panic!("Expected single GDB version")
958 // Ignore if actual version is smaller than the minimum
960 return actual_version < start_ver;
961 } else if let Some(rest) = line.strip_prefix("ignore-gdb-version:").map(str::trim) {
962 let (min_version, max_version) = extract_version_range(rest, extract_gdb_version)
964 panic!("couldn't parse version range: {:?}", rest);
967 if max_version < min_version {
968 panic!("Malformed GDB version range: max < min")
971 return actual_version >= min_version && actual_version <= max_version;
977 fn ignore_lldb(config: &Config, line: &str) -> bool {
978 if let Some(actual_version) = config.lldb_version {
979 if let Some(min_version) = line.strip_prefix("min-lldb-version:").map(str::trim) {
980 let min_version = min_version.parse().unwrap_or_else(|e| {
981 panic!("Unexpected format of LLDB version string: {}\n{:?}", min_version, e);
983 // Ignore if actual version is smaller the minimum required
985 actual_version < min_version
987 line.starts_with("rust-lldb") && !config.lldb_native_rust
994 fn ignore_llvm(config: &Config, line: &str) -> bool {
995 if config.system_llvm && line.starts_with("no-system-llvm") {
998 if let Some(needed_components) =
999 config.parse_name_value_directive(line, "needs-llvm-components")
1001 let components: HashSet<_> = config.llvm_components.split_whitespace().collect();
1002 if let Some(missing_component) = needed_components
1004 .find(|needed_component| !components.contains(needed_component))
1006 if env::var_os("COMPILETEST_NEEDS_ALL_LLVM_COMPONENTS").is_some() {
1007 panic!("missing LLVM component: {}", missing_component);
1012 if let Some(actual_version) = config.llvm_version {
1013 if let Some(rest) = line.strip_prefix("min-llvm-version:").map(str::trim) {
1014 let min_version = extract_llvm_version(rest).unwrap();
1015 // Ignore if actual version is smaller the minimum required
1017 actual_version < min_version
1018 } else if let Some(rest) = line.strip_prefix("min-system-llvm-version:").map(str::trim) {
1019 let min_version = extract_llvm_version(rest).unwrap();
1020 // Ignore if using system LLVM and actual version
1021 // is smaller the minimum required version
1022 config.system_llvm && actual_version < min_version
1023 } else if let Some(rest) = line.strip_prefix("ignore-llvm-version:").map(str::trim) {
1024 // Syntax is: "ignore-llvm-version: <version1> [- <version2>]"
1025 let (v_min, v_max) =
1026 extract_version_range(rest, extract_llvm_version).unwrap_or_else(|| {
1027 panic!("couldn't parse version range: {:?}", rest);
1030 panic!("Malformed LLVM version range: max < min")
1032 // Ignore if version lies inside of range.
1033 actual_version >= v_min && actual_version <= v_max