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 // Regexes that should be expected, in order, on standard out
64 pub regex_error_patterns: Vec<String>,
65 // Extra flags to pass to the compiler
66 pub compile_flags: Vec<String>,
67 // Extra flags to pass when the compiled code is run (such as --bench)
68 pub run_flags: Option<String>,
69 // If present, the name of a file that this test should match when
71 pub pp_exact: Option<PathBuf>,
72 // Other crates that should be compiled (typically from the same
73 // directory as the test, but for backwards compatibility reasons
74 // we also check the auxiliary directory)
75 pub aux_builds: Vec<String>,
76 // Similar to `aux_builds`, but a list of NAME=somelib.rs of dependencies
77 // to build and pass with the `--extern` flag.
78 pub aux_crates: Vec<(String, String)>,
79 // Environment settings to use for compiling
80 pub rustc_env: Vec<(String, String)>,
81 // Environment variables to unset prior to compiling.
82 // Variables are unset before applying 'rustc_env'.
83 pub unset_rustc_env: Vec<String>,
84 // Environment settings to use during execution
85 pub exec_env: Vec<(String, String)>,
86 // Build documentation for all specified aux-builds as well
87 pub build_aux_docs: bool,
88 // Flag to force a crate to be built with the host architecture
90 // Check stdout for error-pattern output as well as stderr
91 pub check_stdout: bool,
92 // Check stdout & stderr for output of run-pass test
93 pub check_run_results: bool,
94 // For UI tests, allows compiler to generate arbitrary output to stdout
95 pub dont_check_compiler_stdout: bool,
96 // For UI tests, allows compiler to generate arbitrary output to stderr
97 pub dont_check_compiler_stderr: bool,
98 // Don't force a --crate-type=dylib flag on the command line
100 // Set this for example if you have an auxiliary test file that contains
101 // a proc-macro and needs `#![crate_type = "proc-macro"]`. This ensures
102 // that the aux file is compiled as a `proc-macro` and not as a `dylib`.
103 pub no_prefer_dynamic: bool,
104 // Run -Zunpretty expanded when running pretty printing tests
105 pub pretty_expanded: bool,
106 // Which pretty mode are we testing with, default to 'normal'
107 pub pretty_mode: String,
108 // Only compare pretty output and don't try compiling
109 pub pretty_compare_only: bool,
110 // Patterns which must not appear in the output of a cfail test.
111 pub forbid_output: Vec<String>,
112 // Revisions to test for incremental compilation.
113 pub revisions: Vec<String>,
114 // Directory (if any) to use for incremental compilation. This is
115 // not set by end-users; rather it is set by the incremental
116 // testing harness and used when generating compilation
117 // arguments. (In particular, it propagates to the aux-builds.)
118 pub incremental_dir: Option<PathBuf>,
119 // If `true`, this test will use incremental compilation.
121 // This can be set manually with the `incremental` header, or implicitly
122 // by being a part of an incremental mode test. Using the `incremental`
123 // header should be avoided if possible; using an incremental mode test is
124 // preferred. Incremental mode tests support multiple passes, which can
125 // verify that the incremental cache can be loaded properly after being
126 // created. Just setting the header will only verify the behavior with
127 // creating an incremental cache, but doesn't check that it is created
130 // Compiletest will create the incremental directory, and ensure it is
131 // empty before the test starts. Incremental mode tests will reuse the
132 // incremental directory between passes in the same test.
133 pub incremental: bool,
134 // If `true`, this test is a known bug.
136 // When set, some requirements are relaxed. Currently, this only means no
137 // error annotations are needed, but this may be updated in the future to
138 // include other relaxations.
140 // How far should the test proceed while still passing.
141 pass_mode: Option<PassMode>,
142 // Ignore `--pass` overrides from the command line for this test.
144 // How far this test should proceed to start failing.
145 pub fail_mode: Option<FailMode>,
146 // rustdoc will test the output of the `--test` option
147 pub check_test_line_numbers_match: bool,
148 // customized normalization rules
149 pub normalize_stdout: Vec<(String, String)>,
150 pub normalize_stderr: Vec<(String, String)>,
151 pub failure_status: i32,
152 // Whether or not `rustfix` should apply the `CodeSuggestion`s of this test and compile the
153 // resulting Rust code.
154 pub run_rustfix: bool,
155 // If true, `rustfix` will only apply `MachineApplicable` suggestions.
156 pub rustfix_only_machine_applicable: bool,
157 pub assembly_output: Option<String>,
158 // If true, the test is expected to ICE
159 pub should_ice: bool,
160 // If true, the stderr is expected to be different across bit-widths.
161 pub stderr_per_bitwidth: bool,
162 // The MIR opt to unit test, if any
163 pub mir_unit_test: Option<String>,
167 pub const ERROR_PATTERN: &'static str = "error-pattern";
168 pub const REGEX_ERROR_PATTERN: &'static str = "regex-error-pattern";
169 pub const COMPILE_FLAGS: &'static str = "compile-flags";
170 pub const RUN_FLAGS: &'static str = "run-flags";
171 pub const SHOULD_ICE: &'static str = "should-ice";
172 pub const BUILD_AUX_DOCS: &'static str = "build-aux-docs";
173 pub const FORCE_HOST: &'static str = "force-host";
174 pub const CHECK_STDOUT: &'static str = "check-stdout";
175 pub const CHECK_RUN_RESULTS: &'static str = "check-run-results";
176 pub const DONT_CHECK_COMPILER_STDOUT: &'static str = "dont-check-compiler-stdout";
177 pub const DONT_CHECK_COMPILER_STDERR: &'static str = "dont-check-compiler-stderr";
178 pub const NO_PREFER_DYNAMIC: &'static str = "no-prefer-dynamic";
179 pub const PRETTY_EXPANDED: &'static str = "pretty-expanded";
180 pub const PRETTY_MODE: &'static str = "pretty-mode";
181 pub const PRETTY_COMPARE_ONLY: &'static str = "pretty-compare-only";
182 pub const AUX_BUILD: &'static str = "aux-build";
183 pub const AUX_CRATE: &'static str = "aux-crate";
184 pub const EXEC_ENV: &'static str = "exec-env";
185 pub const RUSTC_ENV: &'static str = "rustc-env";
186 pub const UNSET_RUSTC_ENV: &'static str = "unset-rustc-env";
187 pub const FORBID_OUTPUT: &'static str = "forbid-output";
188 pub const CHECK_TEST_LINE_NUMBERS_MATCH: &'static str = "check-test-line-numbers-match";
189 pub const IGNORE_PASS: &'static str = "ignore-pass";
190 pub const FAILURE_STATUS: &'static str = "failure-status";
191 pub const RUN_RUSTFIX: &'static str = "run-rustfix";
192 pub const RUSTFIX_ONLY_MACHINE_APPLICABLE: &'static str = "rustfix-only-machine-applicable";
193 pub const ASSEMBLY_OUTPUT: &'static str = "assembly-output";
194 pub const STDERR_PER_BITWIDTH: &'static str = "stderr-per-bitwidth";
195 pub const INCREMENTAL: &'static str = "incremental";
196 pub const KNOWN_BUG: &'static str = "known-bug";
197 pub const MIR_UNIT_TEST: &'static str = "unit-test";
198 // This isn't a real directive, just one that is probably mistyped often
199 pub const INCORRECT_COMPILER_FLAGS: &'static str = "compiler-flags";
203 pub fn new() -> Self {
205 error_patterns: vec![],
206 regex_error_patterns: vec![],
207 compile_flags: vec![],
214 unset_rustc_env: vec![],
216 build_aux_docs: false,
219 check_run_results: false,
220 dont_check_compiler_stdout: false,
221 dont_check_compiler_stderr: false,
222 no_prefer_dynamic: false,
223 pretty_expanded: false,
224 pretty_mode: "normal".to_string(),
225 pretty_compare_only: false,
226 forbid_output: vec![],
227 incremental_dir: None,
233 check_test_line_numbers_match: false,
234 normalize_stdout: vec![],
235 normalize_stderr: vec![],
238 rustfix_only_machine_applicable: false,
239 assembly_output: None,
241 stderr_per_bitwidth: false,
246 pub fn from_aux_file(&self, testfile: &Path, cfg: Option<&str>, config: &Config) -> Self {
247 let mut props = TestProps::new();
249 // copy over select properties to the aux build:
250 props.incremental_dir = self.incremental_dir.clone();
251 props.ignore_pass = true;
252 props.load_from(testfile, cfg, config);
257 pub fn from_file(testfile: &Path, cfg: Option<&str>, config: &Config) -> Self {
258 let mut props = TestProps::new();
259 props.load_from(testfile, cfg, config);
261 match (props.pass_mode, props.fail_mode) {
262 (None, None) => props.fail_mode = Some(FailMode::Check),
263 (Some(_), None) | (None, Some(_)) => {}
264 (Some(_), Some(_)) => panic!("cannot use a *-fail and *-pass mode together"),
270 /// Loads properties from `testfile` into `props`. If a property is
271 /// tied to a particular revision `foo` (indicated by writing
272 /// `//[foo]`), then the property is ignored unless `cfg` is
274 fn load_from(&mut self, testfile: &Path, cfg: Option<&str>, config: &Config) {
275 let mut has_edition = false;
276 if !testfile.is_dir() {
277 let file = File::open(testfile).unwrap();
279 iter_header(testfile, file, &mut |revision, ln| {
280 if revision.is_some() && revision != cfg {
286 config.push_name_value_directive(
289 &mut self.error_patterns,
292 config.push_name_value_directive(
295 &mut self.regex_error_patterns,
299 if let Some(flags) = config.parse_name_value_directive(ln, COMPILE_FLAGS) {
300 self.compile_flags.extend(flags.split_whitespace().map(|s| s.to_owned()));
302 if config.parse_name_value_directive(ln, INCORRECT_COMPILER_FLAGS).is_some() {
303 panic!("`compiler-flags` directive should be spelled `compile-flags`");
306 if let Some(edition) = config.parse_edition(ln) {
307 self.compile_flags.push(format!("--edition={}", edition.trim()));
311 config.parse_and_update_revisions(ln, &mut self.revisions);
313 config.set_name_value_directive(ln, RUN_FLAGS, &mut self.run_flags, |r| r);
315 if self.pp_exact.is_none() {
316 self.pp_exact = config.parse_pp_exact(ln, testfile);
319 config.set_name_directive(ln, SHOULD_ICE, &mut self.should_ice);
320 config.set_name_directive(ln, BUILD_AUX_DOCS, &mut self.build_aux_docs);
321 config.set_name_directive(ln, FORCE_HOST, &mut self.force_host);
322 config.set_name_directive(ln, CHECK_STDOUT, &mut self.check_stdout);
323 config.set_name_directive(ln, CHECK_RUN_RESULTS, &mut self.check_run_results);
324 config.set_name_directive(
326 DONT_CHECK_COMPILER_STDOUT,
327 &mut self.dont_check_compiler_stdout,
329 config.set_name_directive(
331 DONT_CHECK_COMPILER_STDERR,
332 &mut self.dont_check_compiler_stderr,
334 config.set_name_directive(ln, NO_PREFER_DYNAMIC, &mut self.no_prefer_dynamic);
335 config.set_name_directive(ln, PRETTY_EXPANDED, &mut self.pretty_expanded);
337 if let Some(m) = config.parse_name_value_directive(ln, PRETTY_MODE) {
338 self.pretty_mode = m;
341 config.set_name_directive(ln, PRETTY_COMPARE_ONLY, &mut self.pretty_compare_only);
342 config.push_name_value_directive(ln, AUX_BUILD, &mut self.aux_builds, |r| {
345 config.push_name_value_directive(
348 &mut self.aux_crates,
349 Config::parse_aux_crate,
351 config.push_name_value_directive(
357 config.push_name_value_directive(
363 config.push_name_value_directive(
366 &mut self.unset_rustc_env,
369 config.push_name_value_directive(ln, FORBID_OUTPUT, &mut self.forbid_output, |r| r);
370 config.set_name_directive(
372 CHECK_TEST_LINE_NUMBERS_MATCH,
373 &mut self.check_test_line_numbers_match,
376 self.update_pass_mode(ln, cfg, config);
377 self.update_fail_mode(ln, config);
379 config.set_name_directive(ln, IGNORE_PASS, &mut self.ignore_pass);
381 if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stdout") {
382 self.normalize_stdout.push(rule);
384 if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stderr") {
385 self.normalize_stderr.push(rule);
388 if let Some(code) = config
389 .parse_name_value_directive(ln, FAILURE_STATUS)
390 .and_then(|code| code.trim().parse::<i32>().ok())
392 self.failure_status = code;
395 config.set_name_directive(ln, RUN_RUSTFIX, &mut self.run_rustfix);
396 config.set_name_directive(
398 RUSTFIX_ONLY_MACHINE_APPLICABLE,
399 &mut self.rustfix_only_machine_applicable,
401 config.set_name_value_directive(
404 &mut self.assembly_output,
405 |r| r.trim().to_string(),
407 config.set_name_directive(ln, STDERR_PER_BITWIDTH, &mut self.stderr_per_bitwidth);
408 config.set_name_directive(ln, INCREMENTAL, &mut self.incremental);
410 // Unlike the other `name_value_directive`s this needs to be handled manually,
411 // because it sets a `bool` flag.
412 if let Some(known_bug) = config.parse_name_value_directive(ln, KNOWN_BUG) {
413 let known_bug = known_bug.trim();
414 if known_bug == "unknown"
415 || known_bug.split(',').all(|issue_ref| {
419 .filter(|(_, number)| {
420 number.chars().all(|digit| digit.is_numeric())
425 self.known_bug = true;
428 "Invalid known-bug value: {known_bug}\nIt requires comma-separated issue references (`#000` or `chalk#000`) or `unknown`."
432 config.set_name_value_directive(ln, MIR_UNIT_TEST, &mut self.mir_unit_test, |s| {
438 if self.failure_status == -1 {
439 self.failure_status = 1;
442 self.failure_status = 101;
445 if config.mode == Mode::Incremental {
446 self.incremental = true;
449 for key in &["RUST_TEST_NOCAPTURE", "RUST_TEST_THREADS"] {
450 if let Ok(val) = env::var(key) {
451 if self.exec_env.iter().find(|&&(ref x, _)| x == key).is_none() {
452 self.exec_env.push(((*key).to_owned(), val))
457 if let (Some(edition), false) = (&config.edition, has_edition) {
458 self.compile_flags.push(format!("--edition={}", edition));
462 fn update_fail_mode(&mut self, ln: &str, config: &Config) {
463 let check_ui = |mode: &str| {
464 if config.mode != Mode::Ui {
465 panic!("`{}-fail` header is only supported in UI tests", mode);
468 if config.mode == Mode::Ui && config.parse_name_directive(ln, "compile-fail") {
469 panic!("`compile-fail` header is useless in UI tests");
471 let fail_mode = if config.parse_name_directive(ln, "check-fail") {
473 Some(FailMode::Check)
474 } else if config.parse_name_directive(ln, "build-fail") {
476 Some(FailMode::Build)
477 } else if config.parse_name_directive(ln, "run-fail") {
483 match (self.fail_mode, fail_mode) {
484 (None, Some(_)) => self.fail_mode = fail_mode,
485 (Some(_), Some(_)) => panic!("multiple `*-fail` headers in a single test"),
490 fn update_pass_mode(&mut self, ln: &str, revision: Option<&str>, config: &Config) {
491 let check_no_run = |s| {
492 if config.mode != Mode::Ui && config.mode != Mode::Incremental {
493 panic!("`{}` header is only supported in UI and incremental tests", s);
495 if config.mode == Mode::Incremental
496 && !revision.map_or(false, |r| r.starts_with("cfail"))
497 && !self.revisions.iter().all(|r| r.starts_with("cfail"))
499 panic!("`{}` header is only supported in `cfail` incremental tests", s);
502 let pass_mode = if config.parse_name_directive(ln, "check-pass") {
503 check_no_run("check-pass");
504 Some(PassMode::Check)
505 } else if config.parse_name_directive(ln, "build-pass") {
506 check_no_run("build-pass");
507 Some(PassMode::Build)
508 } else if config.parse_name_directive(ln, "run-pass") {
509 if config.mode != Mode::Ui {
510 panic!("`run-pass` header is only supported in UI tests")
516 match (self.pass_mode, pass_mode) {
517 (None, Some(_)) => self.pass_mode = pass_mode,
518 (Some(_), Some(_)) => panic!("multiple `*-pass` headers in a single test"),
523 pub fn pass_mode(&self, config: &Config) -> Option<PassMode> {
524 if !self.ignore_pass && self.fail_mode.is_none() && config.mode == Mode::Ui {
525 if let (mode @ Some(_), Some(_)) = (config.force_pass_mode, self.pass_mode) {
532 // does not consider CLI override for pass mode
533 pub fn local_pass_mode(&self) -> Option<PassMode> {
538 fn iter_header<R: Read>(testfile: &Path, rdr: R, it: &mut dyn FnMut(Option<&str>, &str)) {
539 if testfile.is_dir() {
543 let comment = if testfile.extension().map(|e| e == "rs") == Some(true) { "//" } else { "#" };
545 let mut rdr = BufReader::new(rdr);
546 let mut ln = String::new();
550 if rdr.read_line(&mut ln).unwrap() == 0 {
554 // Assume that any directives will be found before the first
555 // module or function. This doesn't seem to be an optimization
556 // with a warm page cache. Maybe with a cold one.
558 if ln.starts_with("fn") || ln.starts_with("mod") {
560 } else if ln.starts_with(comment) && ln[comment.len()..].trim_start().starts_with('[') {
561 // A comment like `//[foo]` is specific to revision `foo`
562 if let Some(close_brace) = ln.find(']') {
563 let open_brace = ln.find('[').unwrap();
564 let lncfg = &ln[open_brace + 1..close_brace];
565 it(Some(lncfg), ln[(close_brace + 1)..].trim_start());
567 panic!("malformed condition directive: expected `{}[foo]`, found `{}`", comment, ln)
569 } else if ln.starts_with(comment) {
570 it(None, ln[comment.len()..].trim_start());
576 fn parse_aux_crate(r: String) -> (String, String) {
577 let mut parts = r.trim().splitn(2, '=');
579 parts.next().expect("missing aux-crate name (e.g. log=log.rs)").to_string(),
580 parts.next().expect("missing aux-crate value (e.g. log=log.rs)").to_string(),
584 fn parse_and_update_revisions(&self, line: &str, existing: &mut Vec<String>) {
585 if let Some(raw) = self.parse_name_value_directive(line, "revisions") {
586 let mut duplicates: HashSet<_> = existing.iter().cloned().collect();
587 for revision in raw.split_whitespace().map(|r| r.to_string()) {
588 if !duplicates.insert(revision.clone()) {
589 panic!("Duplicate revision: `{}` in line `{}`", revision, raw);
591 existing.push(revision);
596 fn parse_env(nv: String) -> (String, String) {
597 // nv is either FOO or FOO=BAR
598 let mut strs: Vec<String> = nv.splitn(2, '=').map(str::to_owned).collect();
601 1 => (strs.pop().unwrap(), String::new()),
603 let end = strs.pop().unwrap();
604 (strs.pop().unwrap(), end)
606 n => panic!("Expected 1 or 2 strings, not {}", n),
610 fn parse_pp_exact(&self, line: &str, testfile: &Path) -> Option<PathBuf> {
611 if let Some(s) = self.parse_name_value_directive(line, "pp-exact") {
612 Some(PathBuf::from(&s))
613 } else if self.parse_name_directive(line, "pp-exact") {
614 testfile.file_name().map(PathBuf::from)
620 fn parse_custom_normalization(&self, mut line: &str, prefix: &str) -> Option<(String, String)> {
621 if self.parse_cfg_name_directive(line, prefix) == ParsedNameDirective::Match {
622 let from = parse_normalization_string(&mut line)?;
623 let to = parse_normalization_string(&mut line)?;
630 fn parse_needs_matching_clang(&self, line: &str) -> bool {
631 self.parse_name_directive(line, "needs-matching-clang")
634 fn parse_needs_profiler_support(&self, line: &str) -> bool {
635 self.parse_name_directive(line, "needs-profiler-support")
638 /// Parses a name-value directive which contains config-specific information, e.g., `ignore-x86`
639 /// or `normalize-stderr-32bit`.
640 fn parse_cfg_name_directive(&self, line: &str, prefix: &str) -> ParsedNameDirective {
641 if !line.as_bytes().starts_with(prefix.as_bytes()) {
642 return ParsedNameDirective::NoMatch;
644 if line.as_bytes().get(prefix.len()) != Some(&b'-') {
645 return ParsedNameDirective::NoMatch;
648 let name = line[prefix.len() + 1..].split(&[':', ' '][..]).next().unwrap();
650 let is_match = name == "test" ||
651 self.target == name || // triple
652 util::matches_os(&self.target, name) || // target
653 util::matches_env(&self.target, name) || // env
654 self.target.ends_with(name) || // target and env
655 name == util::get_arch(&self.target) || // architecture
656 name == util::get_pointer_width(&self.target) || // pointer width
657 name == self.stage_id.split('-').next().unwrap() || // stage
658 name == self.channel || // channel
659 (self.target != self.host && name == "cross-compile") ||
660 (name == "endian-big" && util::is_big_endian(&self.target)) ||
661 (self.remote_test_client.is_some() && name == "remote") ||
662 match self.compare_mode {
663 Some(CompareMode::Polonius) => name == "compare-mode-polonius",
664 Some(CompareMode::Chalk) => name == "compare-mode-chalk",
665 Some(CompareMode::SplitDwarf) => name == "compare-mode-split-dwarf",
666 Some(CompareMode::SplitDwarfSingle) => name == "compare-mode-split-dwarf-single",
669 (cfg!(debug_assertions) && name == "debug") ||
670 match self.debugger {
671 Some(Debugger::Cdb) => name == "cdb",
672 Some(Debugger::Gdb) => name == "gdb",
673 Some(Debugger::Lldb) => name == "lldb",
677 if is_match { ParsedNameDirective::Match } else { ParsedNameDirective::NoMatch }
680 fn has_cfg_prefix(&self, line: &str, prefix: &str) -> bool {
681 // returns whether this line contains this prefix or not. For prefix
682 // "ignore", returns true if line says "ignore-x86_64", "ignore-arch",
683 // "ignore-android" etc.
684 line.starts_with(prefix) && line.as_bytes().get(prefix.len()) == Some(&b'-')
687 fn parse_name_directive(&self, line: &str, directive: &str) -> bool {
688 // Ensure the directive is a whole word. Do not match "ignore-x86" when
689 // the line says "ignore-x86_64".
690 line.starts_with(directive)
691 && matches!(line.as_bytes().get(directive.len()), None | Some(&b' ') | Some(&b':'))
694 pub fn parse_name_value_directive(&self, line: &str, directive: &str) -> Option<String> {
695 let colon = directive.len();
696 if line.starts_with(directive) && line.as_bytes().get(colon) == Some(&b':') {
697 let value = line[(colon + 1)..].to_owned();
698 debug!("{}: {}", directive, value);
699 Some(expand_variables(value, self))
705 pub fn find_rust_src_root(&self) -> Option<PathBuf> {
706 let mut path = self.src_base.clone();
707 let path_postfix = Path::new("src/etc/lldb_batchmode.py");
710 if path.join(&path_postfix).is_file() {
718 fn parse_edition(&self, line: &str) -> Option<String> {
719 self.parse_name_value_directive(line, "edition")
722 fn set_name_directive(&self, line: &str, directive: &str, value: &mut bool) {
724 *value = self.parse_name_directive(line, directive)
728 fn set_name_value_directive<T>(
732 value: &mut Option<T>,
733 parse: impl FnOnce(String) -> T,
736 *value = self.parse_name_value_directive(line, directive).map(parse);
740 fn push_name_value_directive<T>(
745 parse: impl FnOnce(String) -> T,
747 if let Some(value) = self.parse_name_value_directive(line, directive).map(parse) {
753 fn expand_variables(mut value: String, config: &Config) -> String {
754 const CWD: &str = "{{cwd}}";
755 const SRC_BASE: &str = "{{src-base}}";
756 const BUILD_BASE: &str = "{{build-base}}";
758 if value.contains(CWD) {
759 let cwd = env::current_dir().unwrap();
760 value = value.replace(CWD, &cwd.to_string_lossy());
763 if value.contains(SRC_BASE) {
764 value = value.replace(SRC_BASE, &config.src_base.to_string_lossy());
767 if value.contains(BUILD_BASE) {
768 value = value.replace(BUILD_BASE, &config.build_base.to_string_lossy());
774 /// Finds the next quoted string `"..."` in `line`, and extract the content from it. Move the `line`
775 /// variable after the end of the quoted string.
780 /// let mut s = "normalize-stderr-32bit: \"something (32 bits)\" -> \"something ($WORD bits)\".";
781 /// let first = parse_normalization_string(&mut s);
782 /// assert_eq!(first, Some("something (32 bits)".to_owned()));
783 /// assert_eq!(s, " -> \"something ($WORD bits)\".");
785 fn parse_normalization_string(line: &mut &str) -> Option<String> {
786 // FIXME support escapes in strings.
787 let begin = line.find('"')? + 1;
788 let end = line[begin..].find('"')? + begin;
789 let result = line[begin..end].to_owned();
790 *line = &line[end + 1..];
794 pub fn extract_llvm_version(version: &str) -> Option<u32> {
795 let pat = |c: char| !c.is_ascii_digit() && c != '.';
796 let version_without_suffix = match version.find(pat) {
797 Some(pos) => &version[..pos],
800 let components: Vec<u32> = version_without_suffix
802 .map(|s| s.parse().expect("Malformed version component"))
804 let version = match *components {
806 [a, b] => a * 10_000 + b * 100,
807 [a, b, c] => a * 10_000 + b * 100 + c,
808 _ => panic!("Malformed version"),
813 /// Takes a directive of the form "<version1> [- <version2>]",
814 /// returns the numeric representation of <version1> and <version2> as
815 /// tuple: (<version1> as u32, <version2> as u32)
817 /// If the <version2> part is omitted, the second component of the tuple
818 /// is the same as <version1>.
819 fn extract_version_range<F>(line: &str, parse: F) -> Option<(u32, u32)>
821 F: Fn(&str) -> Option<u32>,
823 let mut splits = line.splitn(2, "- ").map(str::trim);
824 let min = splits.next().unwrap();
825 if min.ends_with('-') {
829 let max = splits.next();
835 let min = parse(min)?;
836 let max = match max {
837 Some(max) if max.is_empty() => return None,
838 Some(max) => parse(max)?,
845 pub fn make_test_description<R: Read>(
847 name: test::TestName,
851 ) -> test::TestDesc {
852 let mut ignore = false;
853 let ignore_message = None;
854 let mut should_fail = false;
856 let rustc_has_profiler_support = env::var_os("RUSTC_PROFILER_SUPPORT").is_some();
857 let rustc_has_sanitizer_support = env::var_os("RUSTC_SANITIZER_SUPPORT").is_some();
858 let has_asm_support = util::has_asm_support(&config.target);
859 let has_asan = util::ASAN_SUPPORTED_TARGETS.contains(&&*config.target);
860 let has_lsan = util::LSAN_SUPPORTED_TARGETS.contains(&&*config.target);
861 let has_msan = util::MSAN_SUPPORTED_TARGETS.contains(&&*config.target);
862 let has_tsan = util::TSAN_SUPPORTED_TARGETS.contains(&&*config.target);
863 let has_hwasan = util::HWASAN_SUPPORTED_TARGETS.contains(&&*config.target);
864 let has_memtag = util::MEMTAG_SUPPORTED_TARGETS.contains(&&*config.target);
865 // for `-Z gcc-ld=lld`
866 let has_rust_lld = config
869 .join(&config.target)
872 .join(if config.host.contains("windows") { "ld.exe" } else { "ld" })
874 iter_header(path, src, &mut |revision, ln| {
875 if revision.is_some() && revision != cfg {
878 ignore = match config.parse_cfg_name_directive(ln, "ignore") {
879 ParsedNameDirective::Match => true,
880 ParsedNameDirective::NoMatch => ignore,
882 if config.has_cfg_prefix(ln, "only") {
883 ignore = match config.parse_cfg_name_directive(ln, "only") {
884 ParsedNameDirective::Match => ignore,
885 ParsedNameDirective::NoMatch => true,
888 ignore |= ignore_llvm(config, ln);
890 config.run_clang_based_tests_with.is_none() && config.parse_needs_matching_clang(ln);
891 ignore |= !has_asm_support && config.parse_name_directive(ln, "needs-asm-support");
892 ignore |= !rustc_has_profiler_support && config.parse_needs_profiler_support(ln);
893 ignore |= !config.run_enabled() && config.parse_name_directive(ln, "needs-run-enabled");
894 ignore |= !rustc_has_sanitizer_support
895 && config.parse_name_directive(ln, "needs-sanitizer-support");
896 ignore |= !has_asan && config.parse_name_directive(ln, "needs-sanitizer-address");
897 ignore |= !has_lsan && config.parse_name_directive(ln, "needs-sanitizer-leak");
898 ignore |= !has_msan && config.parse_name_directive(ln, "needs-sanitizer-memory");
899 ignore |= !has_tsan && config.parse_name_directive(ln, "needs-sanitizer-thread");
900 ignore |= !has_hwasan && config.parse_name_directive(ln, "needs-sanitizer-hwaddress");
901 ignore |= !has_memtag && config.parse_name_directive(ln, "needs-sanitizer-memtag");
902 ignore |= config.target_panic == PanicStrategy::Abort
903 && config.parse_name_directive(ln, "needs-unwind");
904 ignore |= config.target == "wasm32-unknown-unknown"
905 && config.parse_name_directive(ln, directives::CHECK_RUN_RESULTS);
906 ignore |= config.debugger == Some(Debugger::Cdb) && ignore_cdb(config, ln);
907 ignore |= config.debugger == Some(Debugger::Gdb) && ignore_gdb(config, ln);
908 ignore |= config.debugger == Some(Debugger::Lldb) && ignore_lldb(config, ln);
909 ignore |= !has_rust_lld && config.parse_name_directive(ln, "needs-rust-lld");
910 should_fail |= config.parse_name_directive(ln, "should-fail");
913 // The `should-fail` annotation doesn't apply to pretty tests,
914 // since we run the pretty printer across all tests by default.
915 // If desired, we could add a `should-fail-pretty` annotation.
916 let should_panic = match config.mode {
917 crate::common::Pretty => test::ShouldPanic::No,
918 _ if should_fail => test::ShouldPanic::Yes,
919 _ => test::ShouldPanic::No,
929 test_type: test::TestType::Unknown,
933 fn ignore_cdb(config: &Config, line: &str) -> bool {
934 if let Some(actual_version) = config.cdb_version {
935 if let Some(min_version) = line.strip_prefix("min-cdb-version:").map(str::trim) {
936 let min_version = extract_cdb_version(min_version).unwrap_or_else(|| {
937 panic!("couldn't parse version range: {:?}", min_version);
940 // Ignore if actual version is smaller than the minimum
942 return actual_version < min_version;
948 fn ignore_gdb(config: &Config, line: &str) -> bool {
949 if let Some(actual_version) = config.gdb_version {
950 if let Some(rest) = line.strip_prefix("min-gdb-version:").map(str::trim) {
951 let (start_ver, end_ver) = extract_version_range(rest, extract_gdb_version)
953 panic!("couldn't parse version range: {:?}", rest);
956 if start_ver != end_ver {
957 panic!("Expected single GDB version")
959 // Ignore if actual version is smaller than the minimum
961 return actual_version < start_ver;
962 } else if let Some(rest) = line.strip_prefix("ignore-gdb-version:").map(str::trim) {
963 let (min_version, max_version) = extract_version_range(rest, extract_gdb_version)
965 panic!("couldn't parse version range: {:?}", rest);
968 if max_version < min_version {
969 panic!("Malformed GDB version range: max < min")
972 return actual_version >= min_version && actual_version <= max_version;
978 fn ignore_lldb(config: &Config, line: &str) -> bool {
979 if let Some(actual_version) = config.lldb_version {
980 if let Some(min_version) = line.strip_prefix("min-lldb-version:").map(str::trim) {
981 let min_version = min_version.parse().unwrap_or_else(|e| {
982 panic!("Unexpected format of LLDB version string: {}\n{:?}", min_version, e);
984 // Ignore if actual version is smaller the minimum required
986 actual_version < min_version
988 line.starts_with("rust-lldb") && !config.lldb_native_rust
995 fn ignore_llvm(config: &Config, line: &str) -> bool {
996 if config.system_llvm && line.starts_with("no-system-llvm") {
999 if let Some(needed_components) =
1000 config.parse_name_value_directive(line, "needs-llvm-components")
1002 let components: HashSet<_> = config.llvm_components.split_whitespace().collect();
1003 if let Some(missing_component) = needed_components
1005 .find(|needed_component| !components.contains(needed_component))
1007 if env::var_os("COMPILETEST_NEEDS_ALL_LLVM_COMPONENTS").is_some() {
1008 panic!("missing LLVM component: {}", missing_component);
1013 if let Some(actual_version) = config.llvm_version {
1014 if let Some(rest) = line.strip_prefix("min-llvm-version:").map(str::trim) {
1015 let min_version = extract_llvm_version(rest).unwrap();
1016 // Ignore if actual version is smaller the minimum required
1018 actual_version < min_version
1019 } else if let Some(rest) = line.strip_prefix("min-system-llvm-version:").map(str::trim) {
1020 let min_version = extract_llvm_version(rest).unwrap();
1021 // Ignore if using system LLVM and actual version
1022 // is smaller the minimum required version
1023 config.system_llvm && actual_version < min_version
1024 } else if let Some(rest) = line.strip_prefix("ignore-llvm-version:").map(str::trim) {
1025 // Syntax is: "ignore-llvm-version: <version1> [- <version2>]"
1026 let (v_min, v_max) =
1027 extract_version_range(rest, extract_llvm_version).unwrap_or_else(|| {
1028 panic!("couldn't parse version range: {:?}", rest);
1031 panic!("Malformed LLVM version range: max < min")
1033 // Ignore if version lies inside of range.
1034 actual_version >= v_min && actual_version <= v_max