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 config.push_name_value_directive(ln, directives::AUX_BUILD, &mut props.aux, |r| {
47 config.push_name_value_directive(
49 directives::AUX_CRATE,
51 Config::parse_aux_crate,
53 config.parse_and_update_revisions(ln, &mut props.revisions);
59 #[derive(Clone, Debug)]
60 pub struct TestProps {
61 // Lines that should be expected, in order, on standard out
62 pub error_patterns: Vec<String>,
63 // Extra flags to pass to the compiler
64 pub compile_flags: Vec<String>,
65 // Extra flags to pass when the compiled code is run (such as --bench)
66 pub run_flags: Option<String>,
67 // If present, the name of a file that this test should match when
69 pub pp_exact: Option<PathBuf>,
70 // Other crates that should be compiled (typically from the same
71 // directory as the test, but for backwards compatibility reasons
72 // we also check the auxiliary directory)
73 pub aux_builds: Vec<String>,
74 // Similar to `aux_builds`, but a list of NAME=somelib.rs of dependencies
75 // to build and pass with the `--extern` flag.
76 pub aux_crates: Vec<(String, String)>,
77 // Environment settings to use for compiling
78 pub rustc_env: Vec<(String, String)>,
79 // Environment variables to unset prior to compiling.
80 // Variables are unset before applying 'rustc_env'.
81 pub unset_rustc_env: Vec<String>,
82 // Environment settings to use during execution
83 pub exec_env: Vec<(String, String)>,
84 // Build documentation for all specified aux-builds as well
85 pub build_aux_docs: bool,
86 // Flag to force a crate to be built with the host architecture
88 // Check stdout for error-pattern output as well as stderr
89 pub check_stdout: bool,
90 // Check stdout & stderr for output of run-pass test
91 pub check_run_results: bool,
92 // For UI tests, allows compiler to generate arbitrary output to stdout
93 pub dont_check_compiler_stdout: bool,
94 // For UI tests, allows compiler to generate arbitrary output to stderr
95 pub dont_check_compiler_stderr: bool,
96 // Don't force a --crate-type=dylib flag on the command line
98 // Set this for example if you have an auxiliary test file that contains
99 // a proc-macro and needs `#![crate_type = "proc-macro"]`. This ensures
100 // that the aux file is compiled as a `proc-macro` and not as a `dylib`.
101 pub no_prefer_dynamic: bool,
102 // Run -Zunpretty expanded when running pretty printing tests
103 pub pretty_expanded: bool,
104 // Which pretty mode are we testing with, default to 'normal'
105 pub pretty_mode: String,
106 // Only compare pretty output and don't try compiling
107 pub pretty_compare_only: bool,
108 // Patterns which must not appear in the output of a cfail test.
109 pub forbid_output: Vec<String>,
110 // Revisions to test for incremental compilation.
111 pub revisions: Vec<String>,
112 // Directory (if any) to use for incremental compilation. This is
113 // not set by end-users; rather it is set by the incremental
114 // testing harness and used when generating compilation
115 // arguments. (In particular, it propagates to the aux-builds.)
116 pub incremental_dir: Option<PathBuf>,
117 // If `true`, this test will use incremental compilation.
119 // This can be set manually with the `incremental` header, or implicitly
120 // by being a part of an incremental mode test. Using the `incremental`
121 // header should be avoided if possible; using an incremental mode test is
122 // preferred. Incremental mode tests support multiple passes, which can
123 // verify that the incremental cache can be loaded properly after being
124 // created. Just setting the header will only verify the behavior with
125 // creating an incremental cache, but doesn't check that it is created
128 // Compiletest will create the incremental directory, and ensure it is
129 // empty before the test starts. Incremental mode tests will reuse the
130 // incremental directory between passes in the same test.
131 pub incremental: bool,
132 // If `true`, this test is a known bug.
134 // When set, some requirements are relaxed. Currently, this only means no
135 // error annotations are needed, but this may be updated in the future to
136 // include other relaxations.
138 // How far should the test proceed while still passing.
139 pass_mode: Option<PassMode>,
140 // Ignore `--pass` overrides from the command line for this test.
142 // How far this test should proceed to start failing.
143 pub fail_mode: Option<FailMode>,
144 // rustdoc will test the output of the `--test` option
145 pub check_test_line_numbers_match: bool,
146 // customized normalization rules
147 pub normalize_stdout: Vec<(String, String)>,
148 pub normalize_stderr: Vec<(String, String)>,
149 pub failure_status: i32,
150 // Whether or not `rustfix` should apply the `CodeSuggestion`s of this test and compile the
151 // resulting Rust code.
152 pub run_rustfix: bool,
153 // If true, `rustfix` will only apply `MachineApplicable` suggestions.
154 pub rustfix_only_machine_applicable: bool,
155 pub assembly_output: Option<String>,
156 // If true, the test is expected to ICE
157 pub should_ice: bool,
158 // If true, the stderr is expected to be different across bit-widths.
159 pub stderr_per_bitwidth: bool,
160 // The MIR opt to unit test, if any
161 pub mir_unit_test: Option<String>,
165 pub const ERROR_PATTERN: &'static str = "error-pattern";
166 pub const COMPILE_FLAGS: &'static str = "compile-flags";
167 pub const RUN_FLAGS: &'static str = "run-flags";
168 pub const SHOULD_ICE: &'static str = "should-ice";
169 pub const BUILD_AUX_DOCS: &'static str = "build-aux-docs";
170 pub const FORCE_HOST: &'static str = "force-host";
171 pub const CHECK_STDOUT: &'static str = "check-stdout";
172 pub const CHECK_RUN_RESULTS: &'static str = "check-run-results";
173 pub const DONT_CHECK_COMPILER_STDOUT: &'static str = "dont-check-compiler-stdout";
174 pub const DONT_CHECK_COMPILER_STDERR: &'static str = "dont-check-compiler-stderr";
175 pub const NO_PREFER_DYNAMIC: &'static str = "no-prefer-dynamic";
176 pub const PRETTY_EXPANDED: &'static str = "pretty-expanded";
177 pub const PRETTY_MODE: &'static str = "pretty-mode";
178 pub const PRETTY_COMPARE_ONLY: &'static str = "pretty-compare-only";
179 pub const AUX_BUILD: &'static str = "aux-build";
180 pub const AUX_CRATE: &'static str = "aux-crate";
181 pub const EXEC_ENV: &'static str = "exec-env";
182 pub const RUSTC_ENV: &'static str = "rustc-env";
183 pub const UNSET_RUSTC_ENV: &'static str = "unset-rustc-env";
184 pub const FORBID_OUTPUT: &'static str = "forbid-output";
185 pub const CHECK_TEST_LINE_NUMBERS_MATCH: &'static str = "check-test-line-numbers-match";
186 pub const IGNORE_PASS: &'static str = "ignore-pass";
187 pub const FAILURE_STATUS: &'static str = "failure-status";
188 pub const RUN_RUSTFIX: &'static str = "run-rustfix";
189 pub const RUSTFIX_ONLY_MACHINE_APPLICABLE: &'static str = "rustfix-only-machine-applicable";
190 pub const ASSEMBLY_OUTPUT: &'static str = "assembly-output";
191 pub const STDERR_PER_BITWIDTH: &'static str = "stderr-per-bitwidth";
192 pub const INCREMENTAL: &'static str = "incremental";
193 pub const KNOWN_BUG: &'static str = "known-bug";
194 pub const MIR_UNIT_TEST: &'static str = "unit-test";
195 // This isn't a real directive, just one that is probably mistyped often
196 pub const INCORRECT_COMPILER_FLAGS: &'static str = "compiler-flags";
200 pub fn new() -> Self {
202 error_patterns: vec![],
203 compile_flags: vec![],
210 unset_rustc_env: vec![],
212 build_aux_docs: false,
215 check_run_results: false,
216 dont_check_compiler_stdout: false,
217 dont_check_compiler_stderr: false,
218 no_prefer_dynamic: false,
219 pretty_expanded: false,
220 pretty_mode: "normal".to_string(),
221 pretty_compare_only: false,
222 forbid_output: vec![],
223 incremental_dir: None,
229 check_test_line_numbers_match: false,
230 normalize_stdout: vec![],
231 normalize_stderr: vec![],
234 rustfix_only_machine_applicable: false,
235 assembly_output: None,
237 stderr_per_bitwidth: false,
242 pub fn from_aux_file(&self, testfile: &Path, cfg: Option<&str>, config: &Config) -> Self {
243 let mut props = TestProps::new();
245 // copy over select properties to the aux build:
246 props.incremental_dir = self.incremental_dir.clone();
247 props.ignore_pass = true;
248 props.load_from(testfile, cfg, config);
253 pub fn from_file(testfile: &Path, cfg: Option<&str>, config: &Config) -> Self {
254 let mut props = TestProps::new();
255 props.load_from(testfile, cfg, config);
257 match (props.pass_mode, props.fail_mode) {
258 (None, None) => props.fail_mode = Some(FailMode::Check),
259 (Some(_), None) | (None, Some(_)) => {}
260 (Some(_), Some(_)) => panic!("cannot use a *-fail and *-pass mode together"),
266 /// Loads properties from `testfile` into `props`. If a property is
267 /// tied to a particular revision `foo` (indicated by writing
268 /// `//[foo]`), then the property is ignored unless `cfg` is
270 fn load_from(&mut self, testfile: &Path, cfg: Option<&str>, config: &Config) {
271 let mut has_edition = false;
272 if !testfile.is_dir() {
273 let file = File::open(testfile).unwrap();
275 iter_header(testfile, file, &mut |revision, ln| {
276 if revision.is_some() && revision != cfg {
282 config.push_name_value_directive(
285 &mut self.error_patterns,
289 if let Some(flags) = config.parse_name_value_directive(ln, COMPILE_FLAGS) {
290 self.compile_flags.extend(flags.split_whitespace().map(|s| s.to_owned()));
292 if config.parse_name_value_directive(ln, INCORRECT_COMPILER_FLAGS).is_some() {
293 panic!("`compiler-flags` directive should be spelled `compile-flags`");
296 if let Some(edition) = config.parse_edition(ln) {
297 self.compile_flags.push(format!("--edition={}", edition.trim()));
301 config.parse_and_update_revisions(ln, &mut self.revisions);
303 config.set_name_value_directive(ln, RUN_FLAGS, &mut self.run_flags, |r| r);
305 if self.pp_exact.is_none() {
306 self.pp_exact = config.parse_pp_exact(ln, testfile);
309 config.set_name_directive(ln, SHOULD_ICE, &mut self.should_ice);
310 config.set_name_directive(ln, BUILD_AUX_DOCS, &mut self.build_aux_docs);
311 config.set_name_directive(ln, FORCE_HOST, &mut self.force_host);
312 config.set_name_directive(ln, CHECK_STDOUT, &mut self.check_stdout);
313 config.set_name_directive(ln, CHECK_RUN_RESULTS, &mut self.check_run_results);
314 config.set_name_directive(
316 DONT_CHECK_COMPILER_STDOUT,
317 &mut self.dont_check_compiler_stdout,
319 config.set_name_directive(
321 DONT_CHECK_COMPILER_STDERR,
322 &mut self.dont_check_compiler_stderr,
324 config.set_name_directive(ln, NO_PREFER_DYNAMIC, &mut self.no_prefer_dynamic);
325 config.set_name_directive(ln, PRETTY_EXPANDED, &mut self.pretty_expanded);
327 if let Some(m) = config.parse_name_value_directive(ln, PRETTY_MODE) {
328 self.pretty_mode = m;
331 config.set_name_directive(ln, PRETTY_COMPARE_ONLY, &mut self.pretty_compare_only);
332 config.push_name_value_directive(ln, AUX_BUILD, &mut self.aux_builds, |r| {
335 config.push_name_value_directive(
338 &mut self.aux_crates,
339 Config::parse_aux_crate,
341 config.push_name_value_directive(
347 config.push_name_value_directive(
353 config.push_name_value_directive(
356 &mut self.unset_rustc_env,
359 config.push_name_value_directive(ln, FORBID_OUTPUT, &mut self.forbid_output, |r| r);
360 config.set_name_directive(
362 CHECK_TEST_LINE_NUMBERS_MATCH,
363 &mut self.check_test_line_numbers_match,
366 self.update_pass_mode(ln, cfg, config);
367 self.update_fail_mode(ln, config);
369 config.set_name_directive(ln, IGNORE_PASS, &mut self.ignore_pass);
371 if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stdout") {
372 self.normalize_stdout.push(rule);
374 if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stderr") {
375 self.normalize_stderr.push(rule);
378 if let Some(code) = config
379 .parse_name_value_directive(ln, FAILURE_STATUS)
380 .and_then(|code| code.trim().parse::<i32>().ok())
382 self.failure_status = code;
385 config.set_name_directive(ln, RUN_RUSTFIX, &mut self.run_rustfix);
386 config.set_name_directive(
388 RUSTFIX_ONLY_MACHINE_APPLICABLE,
389 &mut self.rustfix_only_machine_applicable,
391 config.set_name_value_directive(
394 &mut self.assembly_output,
395 |r| r.trim().to_string(),
397 config.set_name_directive(ln, STDERR_PER_BITWIDTH, &mut self.stderr_per_bitwidth);
398 config.set_name_directive(ln, INCREMENTAL, &mut self.incremental);
400 // Unlike the other `name_value_directive`s this needs to be handled manually,
401 // because it sets a `bool` flag.
402 if let Some(known_bug) = config.parse_name_value_directive(ln, KNOWN_BUG) {
403 let known_bug = known_bug.trim();
404 if known_bug == "unknown"
405 || known_bug.split(',').all(|issue_ref| {
409 .filter(|(_, number)| {
410 number.chars().all(|digit| digit.is_numeric())
415 self.known_bug = true;
418 "Invalid known-bug value: {known_bug}\nIt requires comma-separated issue references (`#000` or `chalk#000`) or `unknown`."
422 config.set_name_value_directive(ln, MIR_UNIT_TEST, &mut self.mir_unit_test, |s| {
428 if self.failure_status == -1 {
429 self.failure_status = 1;
432 self.failure_status = 101;
435 if config.mode == Mode::Incremental {
436 self.incremental = true;
439 for key in &["RUST_TEST_NOCAPTURE", "RUST_TEST_THREADS"] {
440 if let Ok(val) = env::var(key) {
441 if self.exec_env.iter().find(|&&(ref x, _)| x == key).is_none() {
442 self.exec_env.push(((*key).to_owned(), val))
447 if let (Some(edition), false) = (&config.edition, has_edition) {
448 self.compile_flags.push(format!("--edition={}", edition));
452 fn update_fail_mode(&mut self, ln: &str, config: &Config) {
453 let check_ui = |mode: &str| {
454 if config.mode != Mode::Ui {
455 panic!("`{}-fail` header is only supported in UI tests", mode);
458 if config.mode == Mode::Ui && config.parse_name_directive(ln, "compile-fail") {
459 panic!("`compile-fail` header is useless in UI tests");
461 let fail_mode = if config.parse_name_directive(ln, "check-fail") {
463 Some(FailMode::Check)
464 } else if config.parse_name_directive(ln, "build-fail") {
466 Some(FailMode::Build)
467 } else if config.parse_name_directive(ln, "run-fail") {
473 match (self.fail_mode, fail_mode) {
474 (None, Some(_)) => self.fail_mode = fail_mode,
475 (Some(_), Some(_)) => panic!("multiple `*-fail` headers in a single test"),
480 fn update_pass_mode(&mut self, ln: &str, revision: Option<&str>, config: &Config) {
481 let check_no_run = |s| {
482 if config.mode != Mode::Ui && config.mode != Mode::Incremental {
483 panic!("`{}` header is only supported in UI and incremental tests", s);
485 if config.mode == Mode::Incremental
486 && !revision.map_or(false, |r| r.starts_with("cfail"))
487 && !self.revisions.iter().all(|r| r.starts_with("cfail"))
489 panic!("`{}` header is only supported in `cfail` incremental tests", s);
492 let pass_mode = if config.parse_name_directive(ln, "check-pass") {
493 check_no_run("check-pass");
494 Some(PassMode::Check)
495 } else if config.parse_name_directive(ln, "build-pass") {
496 check_no_run("build-pass");
497 Some(PassMode::Build)
498 } else if config.parse_name_directive(ln, "run-pass") {
499 if config.mode != Mode::Ui {
500 panic!("`run-pass` header is only supported in UI tests")
506 match (self.pass_mode, pass_mode) {
507 (None, Some(_)) => self.pass_mode = pass_mode,
508 (Some(_), Some(_)) => panic!("multiple `*-pass` headers in a single test"),
513 pub fn pass_mode(&self, config: &Config) -> Option<PassMode> {
514 if !self.ignore_pass && self.fail_mode.is_none() && config.mode == Mode::Ui {
515 if let (mode @ Some(_), Some(_)) = (config.force_pass_mode, self.pass_mode) {
522 // does not consider CLI override for pass mode
523 pub fn local_pass_mode(&self) -> Option<PassMode> {
528 fn iter_header<R: Read>(testfile: &Path, rdr: R, it: &mut dyn FnMut(Option<&str>, &str)) {
529 if testfile.is_dir() {
533 let comment = if testfile.extension().map(|e| e == "rs") == Some(true) { "//" } else { "#" };
535 let mut rdr = BufReader::new(rdr);
536 let mut ln = String::new();
540 if rdr.read_line(&mut ln).unwrap() == 0 {
544 // Assume that any directives will be found before the first
545 // module or function. This doesn't seem to be an optimization
546 // with a warm page cache. Maybe with a cold one.
548 if ln.starts_with("fn") || ln.starts_with("mod") {
550 } else if ln.starts_with(comment) && ln[comment.len()..].trim_start().starts_with('[') {
551 // A comment like `//[foo]` is specific to revision `foo`
552 if let Some(close_brace) = ln.find(']') {
553 let open_brace = ln.find('[').unwrap();
554 let lncfg = &ln[open_brace + 1..close_brace];
555 it(Some(lncfg), ln[(close_brace + 1)..].trim_start());
557 panic!("malformed condition directive: expected `{}[foo]`, found `{}`", comment, ln)
559 } else if ln.starts_with(comment) {
560 it(None, ln[comment.len()..].trim_start());
566 fn parse_aux_crate(r: String) -> (String, String) {
567 let mut parts = r.trim().splitn(2, '=');
569 parts.next().expect("missing aux-crate name (e.g. log=log.rs)").to_string(),
570 parts.next().expect("missing aux-crate value (e.g. log=log.rs)").to_string(),
574 fn parse_and_update_revisions(&self, line: &str, existing: &mut Vec<String>) {
575 if let Some(raw) = self.parse_name_value_directive(line, "revisions") {
576 let mut duplicates: HashSet<_> = existing.iter().cloned().collect();
577 for revision in raw.split_whitespace().map(|r| r.to_string()) {
578 if !duplicates.insert(revision.clone()) {
579 panic!("Duplicate revision: `{}` in line `{}`", revision, raw);
581 existing.push(revision);
586 fn parse_env(nv: String) -> (String, String) {
587 // nv is either FOO or FOO=BAR
588 let mut strs: Vec<String> = nv.splitn(2, '=').map(str::to_owned).collect();
591 1 => (strs.pop().unwrap(), String::new()),
593 let end = strs.pop().unwrap();
594 (strs.pop().unwrap(), end)
596 n => panic!("Expected 1 or 2 strings, not {}", n),
600 fn parse_pp_exact(&self, line: &str, testfile: &Path) -> Option<PathBuf> {
601 if let Some(s) = self.parse_name_value_directive(line, "pp-exact") {
602 Some(PathBuf::from(&s))
603 } else if self.parse_name_directive(line, "pp-exact") {
604 testfile.file_name().map(PathBuf::from)
610 fn parse_custom_normalization(&self, mut line: &str, prefix: &str) -> Option<(String, String)> {
611 if self.parse_cfg_name_directive(line, prefix) == ParsedNameDirective::Match {
612 let from = parse_normalization_string(&mut line)?;
613 let to = parse_normalization_string(&mut line)?;
620 fn parse_needs_matching_clang(&self, line: &str) -> bool {
621 self.parse_name_directive(line, "needs-matching-clang")
624 fn parse_needs_profiler_support(&self, line: &str) -> bool {
625 self.parse_name_directive(line, "needs-profiler-support")
628 /// Parses a name-value directive which contains config-specific information, e.g., `ignore-x86`
629 /// or `normalize-stderr-32bit`.
630 fn parse_cfg_name_directive(&self, line: &str, prefix: &str) -> ParsedNameDirective {
631 if !line.as_bytes().starts_with(prefix.as_bytes()) {
632 return ParsedNameDirective::NoMatch;
634 if line.as_bytes().get(prefix.len()) != Some(&b'-') {
635 return ParsedNameDirective::NoMatch;
638 let name = line[prefix.len() + 1..].split(&[':', ' '][..]).next().unwrap();
640 let is_match = name == "test" ||
641 self.target == name || // triple
642 util::matches_os(&self.target, name) || // target
643 util::matches_env(&self.target, name) || // env
644 self.target.ends_with(name) || // target and env
645 name == util::get_arch(&self.target) || // architecture
646 name == util::get_pointer_width(&self.target) || // pointer width
647 name == self.stage_id.split('-').next().unwrap() || // stage
648 name == self.channel || // channel
649 (self.target != self.host && name == "cross-compile") ||
650 (name == "endian-big" && util::is_big_endian(&self.target)) ||
651 (self.remote_test_client.is_some() && name == "remote") ||
652 match self.compare_mode {
653 Some(CompareMode::Polonius) => name == "compare-mode-polonius",
654 Some(CompareMode::Chalk) => name == "compare-mode-chalk",
655 Some(CompareMode::SplitDwarf) => name == "compare-mode-split-dwarf",
656 Some(CompareMode::SplitDwarfSingle) => name == "compare-mode-split-dwarf-single",
659 (cfg!(debug_assertions) && name == "debug") ||
660 match self.debugger {
661 Some(Debugger::Cdb) => name == "cdb",
662 Some(Debugger::Gdb) => name == "gdb",
663 Some(Debugger::Lldb) => name == "lldb",
667 if is_match { ParsedNameDirective::Match } else { ParsedNameDirective::NoMatch }
670 fn has_cfg_prefix(&self, line: &str, prefix: &str) -> bool {
671 // returns whether this line contains this prefix or not. For prefix
672 // "ignore", returns true if line says "ignore-x86_64", "ignore-arch",
673 // "ignore-android" etc.
674 line.starts_with(prefix) && line.as_bytes().get(prefix.len()) == Some(&b'-')
677 fn parse_name_directive(&self, line: &str, directive: &str) -> bool {
678 // Ensure the directive is a whole word. Do not match "ignore-x86" when
679 // the line says "ignore-x86_64".
680 line.starts_with(directive)
681 && matches!(line.as_bytes().get(directive.len()), None | Some(&b' ') | Some(&b':'))
684 pub fn parse_name_value_directive(&self, line: &str, directive: &str) -> Option<String> {
685 let colon = directive.len();
686 if line.starts_with(directive) && line.as_bytes().get(colon) == Some(&b':') {
687 let value = line[(colon + 1)..].to_owned();
688 debug!("{}: {}", directive, value);
689 Some(expand_variables(value, self))
695 pub fn find_rust_src_root(&self) -> Option<PathBuf> {
696 let mut path = self.src_base.clone();
697 let path_postfix = Path::new("src/etc/lldb_batchmode.py");
700 if path.join(&path_postfix).is_file() {
708 fn parse_edition(&self, line: &str) -> Option<String> {
709 self.parse_name_value_directive(line, "edition")
712 fn set_name_directive(&self, line: &str, directive: &str, value: &mut bool) {
714 *value = self.parse_name_directive(line, directive)
718 fn set_name_value_directive<T>(
722 value: &mut Option<T>,
723 parse: impl FnOnce(String) -> T,
726 *value = self.parse_name_value_directive(line, directive).map(parse);
730 fn push_name_value_directive<T>(
735 parse: impl FnOnce(String) -> T,
737 if let Some(value) = self.parse_name_value_directive(line, directive).map(parse) {
743 fn expand_variables(mut value: String, config: &Config) -> String {
744 const CWD: &str = "{{cwd}}";
745 const SRC_BASE: &str = "{{src-base}}";
746 const BUILD_BASE: &str = "{{build-base}}";
748 if value.contains(CWD) {
749 let cwd = env::current_dir().unwrap();
750 value = value.replace(CWD, &cwd.to_string_lossy());
753 if value.contains(SRC_BASE) {
754 value = value.replace(SRC_BASE, &config.src_base.to_string_lossy());
757 if value.contains(BUILD_BASE) {
758 value = value.replace(BUILD_BASE, &config.build_base.to_string_lossy());
764 /// Finds the next quoted string `"..."` in `line`, and extract the content from it. Move the `line`
765 /// variable after the end of the quoted string.
770 /// let mut s = "normalize-stderr-32bit: \"something (32 bits)\" -> \"something ($WORD bits)\".";
771 /// let first = parse_normalization_string(&mut s);
772 /// assert_eq!(first, Some("something (32 bits)".to_owned()));
773 /// assert_eq!(s, " -> \"something ($WORD bits)\".");
775 fn parse_normalization_string(line: &mut &str) -> Option<String> {
776 // FIXME support escapes in strings.
777 let begin = line.find('"')? + 1;
778 let end = line[begin..].find('"')? + begin;
779 let result = line[begin..end].to_owned();
780 *line = &line[end + 1..];
784 pub fn extract_llvm_version(version: &str) -> Option<u32> {
785 let pat = |c: char| !c.is_ascii_digit() && c != '.';
786 let version_without_suffix = match version.find(pat) {
787 Some(pos) => &version[..pos],
790 let components: Vec<u32> = version_without_suffix
792 .map(|s| s.parse().expect("Malformed version component"))
794 let version = match *components {
796 [a, b] => a * 10_000 + b * 100,
797 [a, b, c] => a * 10_000 + b * 100 + c,
798 _ => panic!("Malformed version"),
803 /// Takes a directive of the form "<version1> [- <version2>]",
804 /// returns the numeric representation of <version1> and <version2> as
805 /// tuple: (<version1> as u32, <version2> as u32)
807 /// If the <version2> part is omitted, the second component of the tuple
808 /// is the same as <version1>.
809 fn extract_version_range<F>(line: &str, parse: F) -> Option<(u32, u32)>
811 F: Fn(&str) -> Option<u32>,
813 let mut splits = line.splitn(2, "- ").map(str::trim);
814 let min = splits.next().unwrap();
815 if min.ends_with('-') {
819 let max = splits.next();
825 let min = parse(min)?;
826 let max = match max {
827 Some(max) if max.is_empty() => return None,
828 Some(max) => parse(max)?,
835 pub fn make_test_description<R: Read>(
837 name: test::TestName,
841 ) -> test::TestDesc {
842 let mut ignore = false;
843 let ignore_message = None;
844 let mut should_fail = false;
846 let rustc_has_profiler_support = env::var_os("RUSTC_PROFILER_SUPPORT").is_some();
847 let rustc_has_sanitizer_support = env::var_os("RUSTC_SANITIZER_SUPPORT").is_some();
848 let has_asm_support = util::has_asm_support(&config.target);
849 let has_asan = util::ASAN_SUPPORTED_TARGETS.contains(&&*config.target);
850 let has_lsan = util::LSAN_SUPPORTED_TARGETS.contains(&&*config.target);
851 let has_msan = util::MSAN_SUPPORTED_TARGETS.contains(&&*config.target);
852 let has_tsan = util::TSAN_SUPPORTED_TARGETS.contains(&&*config.target);
853 let has_hwasan = util::HWASAN_SUPPORTED_TARGETS.contains(&&*config.target);
854 let has_memtag = util::MEMTAG_SUPPORTED_TARGETS.contains(&&*config.target);
855 // for `-Z gcc-ld=lld`
856 let has_rust_lld = config
859 .join(&config.target)
862 .join(if config.host.contains("windows") { "ld.exe" } else { "ld" })
864 iter_header(path, src, &mut |revision, ln| {
865 if revision.is_some() && revision != cfg {
868 ignore = match config.parse_cfg_name_directive(ln, "ignore") {
869 ParsedNameDirective::Match => true,
870 ParsedNameDirective::NoMatch => ignore,
872 if config.has_cfg_prefix(ln, "only") {
873 ignore = match config.parse_cfg_name_directive(ln, "only") {
874 ParsedNameDirective::Match => ignore,
875 ParsedNameDirective::NoMatch => true,
878 ignore |= ignore_llvm(config, ln);
880 config.run_clang_based_tests_with.is_none() && config.parse_needs_matching_clang(ln);
881 ignore |= !has_asm_support && config.parse_name_directive(ln, "needs-asm-support");
882 ignore |= !rustc_has_profiler_support && config.parse_needs_profiler_support(ln);
883 ignore |= !config.run_enabled() && config.parse_name_directive(ln, "needs-run-enabled");
884 ignore |= !rustc_has_sanitizer_support
885 && config.parse_name_directive(ln, "needs-sanitizer-support");
886 ignore |= !has_asan && config.parse_name_directive(ln, "needs-sanitizer-address");
887 ignore |= !has_lsan && config.parse_name_directive(ln, "needs-sanitizer-leak");
888 ignore |= !has_msan && config.parse_name_directive(ln, "needs-sanitizer-memory");
889 ignore |= !has_tsan && config.parse_name_directive(ln, "needs-sanitizer-thread");
890 ignore |= !has_hwasan && config.parse_name_directive(ln, "needs-sanitizer-hwaddress");
891 ignore |= !has_memtag && config.parse_name_directive(ln, "needs-sanitizer-memtag");
892 ignore |= config.target_panic == PanicStrategy::Abort
893 && config.parse_name_directive(ln, "needs-unwind");
894 ignore |= config.target == "wasm32-unknown-unknown"
895 && config.parse_name_directive(ln, directives::CHECK_RUN_RESULTS);
896 ignore |= config.debugger == Some(Debugger::Cdb) && ignore_cdb(config, ln);
897 ignore |= config.debugger == Some(Debugger::Gdb) && ignore_gdb(config, ln);
898 ignore |= config.debugger == Some(Debugger::Lldb) && ignore_lldb(config, ln);
899 ignore |= !has_rust_lld && config.parse_name_directive(ln, "needs-rust-lld");
900 should_fail |= config.parse_name_directive(ln, "should-fail");
903 // The `should-fail` annotation doesn't apply to pretty tests,
904 // since we run the pretty printer across all tests by default.
905 // If desired, we could add a `should-fail-pretty` annotation.
906 let should_panic = match config.mode {
907 crate::common::Pretty => test::ShouldPanic::No,
908 _ if should_fail => test::ShouldPanic::Yes,
909 _ => test::ShouldPanic::No,
919 test_type: test::TestType::Unknown,
923 fn ignore_cdb(config: &Config, line: &str) -> bool {
924 if let Some(actual_version) = config.cdb_version {
925 if let Some(min_version) = line.strip_prefix("min-cdb-version:").map(str::trim) {
926 let min_version = extract_cdb_version(min_version).unwrap_or_else(|| {
927 panic!("couldn't parse version range: {:?}", min_version);
930 // Ignore if actual version is smaller than the minimum
932 return actual_version < min_version;
938 fn ignore_gdb(config: &Config, line: &str) -> bool {
939 if let Some(actual_version) = config.gdb_version {
940 if let Some(rest) = line.strip_prefix("min-gdb-version:").map(str::trim) {
941 let (start_ver, end_ver) = extract_version_range(rest, extract_gdb_version)
943 panic!("couldn't parse version range: {:?}", rest);
946 if start_ver != end_ver {
947 panic!("Expected single GDB version")
949 // Ignore if actual version is smaller than the minimum
951 return actual_version < start_ver;
952 } else if let Some(rest) = line.strip_prefix("ignore-gdb-version:").map(str::trim) {
953 let (min_version, max_version) = extract_version_range(rest, extract_gdb_version)
955 panic!("couldn't parse version range: {:?}", rest);
958 if max_version < min_version {
959 panic!("Malformed GDB version range: max < min")
962 return actual_version >= min_version && actual_version <= max_version;
968 fn ignore_lldb(config: &Config, line: &str) -> bool {
969 if let Some(actual_version) = config.lldb_version {
970 if let Some(min_version) = line.strip_prefix("min-lldb-version:").map(str::trim) {
971 let min_version = min_version.parse().unwrap_or_else(|e| {
972 panic!("Unexpected format of LLDB version string: {}\n{:?}", min_version, e);
974 // Ignore if actual version is smaller the minimum required
976 actual_version < min_version
978 line.starts_with("rust-lldb") && !config.lldb_native_rust
985 fn ignore_llvm(config: &Config, line: &str) -> bool {
986 if config.system_llvm && line.starts_with("no-system-llvm") {
989 if let Some(needed_components) =
990 config.parse_name_value_directive(line, "needs-llvm-components")
992 let components: HashSet<_> = config.llvm_components.split_whitespace().collect();
993 if let Some(missing_component) = needed_components
995 .find(|needed_component| !components.contains(needed_component))
997 if env::var_os("COMPILETEST_NEEDS_ALL_LLVM_COMPONENTS").is_some() {
998 panic!("missing LLVM component: {}", missing_component);
1003 if let Some(actual_version) = config.llvm_version {
1004 if let Some(rest) = line.strip_prefix("min-llvm-version:").map(str::trim) {
1005 let min_version = extract_llvm_version(rest).unwrap();
1006 // Ignore if actual version is smaller the minimum required
1008 actual_version < min_version
1009 } else if let Some(rest) = line.strip_prefix("min-system-llvm-version:").map(str::trim) {
1010 let min_version = extract_llvm_version(rest).unwrap();
1011 // Ignore if using system LLVM and actual version
1012 // is smaller the minimum required version
1013 config.system_llvm && actual_version < min_version
1014 } else if let Some(rest) = line.strip_prefix("ignore-llvm-version:").map(str::trim) {
1015 // Syntax is: "ignore-llvm-version: <version1> [- <version2>]"
1016 let (v_min, v_max) =
1017 extract_version_range(rest, extract_llvm_version).unwrap_or_else(|| {
1018 panic!("couldn't parse version range: {:?}", rest);
1021 panic!("Malformed LLVM version range: max < min")
1023 // Ignore if version lies inside of range.
1024 actual_version >= v_min && actual_version <= v_max