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.load_from(testfile, cfg, config);
252 pub fn from_file(testfile: &Path, cfg: Option<&str>, config: &Config) -> Self {
253 let mut props = TestProps::new();
254 props.load_from(testfile, cfg, config);
256 match (props.pass_mode, props.fail_mode) {
257 (None, None) => props.fail_mode = Some(FailMode::Check),
258 (Some(_), None) | (None, Some(_)) => {}
259 (Some(_), Some(_)) => panic!("cannot use a *-fail and *-pass mode together"),
265 /// Loads properties from `testfile` into `props`. If a property is
266 /// tied to a particular revision `foo` (indicated by writing
267 /// `//[foo]`), then the property is ignored unless `cfg` is
269 fn load_from(&mut self, testfile: &Path, cfg: Option<&str>, config: &Config) {
270 let mut has_edition = false;
271 if !testfile.is_dir() {
272 let file = File::open(testfile).unwrap();
274 iter_header(testfile, file, &mut |revision, ln| {
275 if revision.is_some() && revision != cfg {
281 config.push_name_value_directive(
284 &mut self.error_patterns,
288 if let Some(flags) = config.parse_name_value_directive(ln, COMPILE_FLAGS) {
289 self.compile_flags.extend(flags.split_whitespace().map(|s| s.to_owned()));
291 if config.parse_name_value_directive(ln, INCORRECT_COMPILER_FLAGS).is_some() {
292 panic!("`compiler-flags` directive should be spelled `compile-flags`");
295 if let Some(edition) = config.parse_edition(ln) {
296 self.compile_flags.push(format!("--edition={}", edition));
300 config.parse_and_update_revisions(ln, &mut self.revisions);
302 config.set_name_value_directive(ln, RUN_FLAGS, &mut self.run_flags, |r| r);
304 if self.pp_exact.is_none() {
305 self.pp_exact = config.parse_pp_exact(ln, testfile);
308 config.set_name_directive(ln, SHOULD_ICE, &mut self.should_ice);
309 config.set_name_directive(ln, BUILD_AUX_DOCS, &mut self.build_aux_docs);
310 config.set_name_directive(ln, FORCE_HOST, &mut self.force_host);
311 config.set_name_directive(ln, CHECK_STDOUT, &mut self.check_stdout);
312 config.set_name_directive(ln, CHECK_RUN_RESULTS, &mut self.check_run_results);
313 config.set_name_directive(
315 DONT_CHECK_COMPILER_STDOUT,
316 &mut self.dont_check_compiler_stdout,
318 config.set_name_directive(
320 DONT_CHECK_COMPILER_STDERR,
321 &mut self.dont_check_compiler_stderr,
323 config.set_name_directive(ln, NO_PREFER_DYNAMIC, &mut self.no_prefer_dynamic);
324 config.set_name_directive(ln, PRETTY_EXPANDED, &mut self.pretty_expanded);
326 if let Some(m) = config.parse_name_value_directive(ln, PRETTY_MODE) {
327 self.pretty_mode = m;
330 config.set_name_directive(ln, PRETTY_COMPARE_ONLY, &mut self.pretty_compare_only);
331 config.push_name_value_directive(ln, AUX_BUILD, &mut self.aux_builds, |r| {
334 config.push_name_value_directive(
337 &mut self.aux_crates,
338 Config::parse_aux_crate,
340 config.push_name_value_directive(
346 config.push_name_value_directive(
352 config.push_name_value_directive(
355 &mut self.unset_rustc_env,
358 config.push_name_value_directive(ln, FORBID_OUTPUT, &mut self.forbid_output, |r| r);
359 config.set_name_directive(
361 CHECK_TEST_LINE_NUMBERS_MATCH,
362 &mut self.check_test_line_numbers_match,
365 self.update_pass_mode(ln, cfg, config);
366 self.update_fail_mode(ln, config);
368 config.set_name_directive(ln, IGNORE_PASS, &mut self.ignore_pass);
370 if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stdout") {
371 self.normalize_stdout.push(rule);
373 if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stderr") {
374 self.normalize_stderr.push(rule);
377 if let Some(code) = config
378 .parse_name_value_directive(ln, FAILURE_STATUS)
379 .and_then(|code| code.trim().parse::<i32>().ok())
381 self.failure_status = code;
384 config.set_name_directive(ln, RUN_RUSTFIX, &mut self.run_rustfix);
385 config.set_name_directive(
387 RUSTFIX_ONLY_MACHINE_APPLICABLE,
388 &mut self.rustfix_only_machine_applicable,
390 config.set_name_value_directive(
393 &mut self.assembly_output,
394 |r| r.trim().to_string(),
396 config.set_name_directive(ln, STDERR_PER_BITWIDTH, &mut self.stderr_per_bitwidth);
397 config.set_name_directive(ln, INCREMENTAL, &mut self.incremental);
398 config.set_name_directive(ln, KNOWN_BUG, &mut self.known_bug);
399 config.set_name_value_directive(ln, MIR_UNIT_TEST, &mut self.mir_unit_test, |s| {
405 if self.failure_status == -1 {
406 self.failure_status = 1;
409 self.failure_status = 101;
412 if config.mode == Mode::Incremental {
413 self.incremental = true;
416 for key in &["RUST_TEST_NOCAPTURE", "RUST_TEST_THREADS"] {
417 if let Ok(val) = env::var(key) {
418 if self.exec_env.iter().find(|&&(ref x, _)| x == key).is_none() {
419 self.exec_env.push(((*key).to_owned(), val))
424 if let (Some(edition), false) = (&config.edition, has_edition) {
425 self.compile_flags.push(format!("--edition={}", edition));
429 fn update_fail_mode(&mut self, ln: &str, config: &Config) {
430 let check_ui = |mode: &str| {
431 if config.mode != Mode::Ui {
432 panic!("`{}-fail` header is only supported in UI tests", mode);
435 if config.mode == Mode::Ui && config.parse_name_directive(ln, "compile-fail") {
436 panic!("`compile-fail` header is useless in UI tests");
438 let fail_mode = if config.parse_name_directive(ln, "check-fail") {
440 Some(FailMode::Check)
441 } else if config.parse_name_directive(ln, "build-fail") {
443 Some(FailMode::Build)
444 } else if config.parse_name_directive(ln, "run-fail") {
450 match (self.fail_mode, fail_mode) {
451 (None, Some(_)) => self.fail_mode = fail_mode,
452 (Some(_), Some(_)) => panic!("multiple `*-fail` headers in a single test"),
457 fn update_pass_mode(&mut self, ln: &str, revision: Option<&str>, config: &Config) {
458 let check_no_run = |s| {
459 if config.mode != Mode::Ui && config.mode != Mode::Incremental {
460 panic!("`{}` header is only supported in UI and incremental tests", s);
462 if config.mode == Mode::Incremental
463 && !revision.map_or(false, |r| r.starts_with("cfail"))
464 && !self.revisions.iter().all(|r| r.starts_with("cfail"))
466 panic!("`{}` header is only supported in `cfail` incremental tests", s);
469 let pass_mode = if config.parse_name_directive(ln, "check-pass") {
470 check_no_run("check-pass");
471 Some(PassMode::Check)
472 } else if config.parse_name_directive(ln, "build-pass") {
473 check_no_run("build-pass");
474 Some(PassMode::Build)
475 } else if config.parse_name_directive(ln, "run-pass") {
476 if config.mode != Mode::Ui {
477 panic!("`run-pass` header is only supported in UI tests")
483 match (self.pass_mode, pass_mode) {
484 (None, Some(_)) => self.pass_mode = pass_mode,
485 (Some(_), Some(_)) => panic!("multiple `*-pass` headers in a single test"),
490 pub fn pass_mode(&self, config: &Config) -> Option<PassMode> {
491 if !self.ignore_pass && self.fail_mode.is_none() && config.mode == Mode::Ui {
492 if let (mode @ Some(_), Some(_)) = (config.force_pass_mode, self.pass_mode) {
499 // does not consider CLI override for pass mode
500 pub fn local_pass_mode(&self) -> Option<PassMode> {
505 fn iter_header<R: Read>(testfile: &Path, rdr: R, it: &mut dyn FnMut(Option<&str>, &str)) {
506 if testfile.is_dir() {
510 let comment = if testfile.extension().map(|e| e == "rs") == Some(true) { "//" } else { "#" };
512 let mut rdr = BufReader::new(rdr);
513 let mut ln = String::new();
517 if rdr.read_line(&mut ln).unwrap() == 0 {
521 // Assume that any directives will be found before the first
522 // module or function. This doesn't seem to be an optimization
523 // with a warm page cache. Maybe with a cold one.
525 if ln.starts_with("fn") || ln.starts_with("mod") {
527 } else if ln.starts_with(comment) && ln[comment.len()..].trim_start().starts_with('[') {
528 // A comment like `//[foo]` is specific to revision `foo`
529 if let Some(close_brace) = ln.find(']') {
530 let open_brace = ln.find('[').unwrap();
531 let lncfg = &ln[open_brace + 1..close_brace];
532 it(Some(lncfg), ln[(close_brace + 1)..].trim_start());
534 panic!("malformed condition directive: expected `{}[foo]`, found `{}`", comment, ln)
536 } else if ln.starts_with(comment) {
537 it(None, ln[comment.len()..].trim_start());
543 fn parse_aux_crate(r: String) -> (String, String) {
544 let mut parts = r.trim().splitn(2, '=');
546 parts.next().expect("missing aux-crate name (e.g. log=log.rs)").to_string(),
547 parts.next().expect("missing aux-crate value (e.g. log=log.rs)").to_string(),
551 fn parse_and_update_revisions(&self, line: &str, existing: &mut Vec<String>) {
552 if let Some(raw) = self.parse_name_value_directive(line, "revisions") {
553 let mut duplicates: HashSet<_> = existing.iter().cloned().collect();
554 for revision in raw.split_whitespace().map(|r| r.to_string()) {
555 if !duplicates.insert(revision.clone()) {
556 panic!("Duplicate revision: `{}` in line `{}`", revision, raw);
558 existing.push(revision);
563 fn parse_env(nv: String) -> (String, String) {
564 // nv is either FOO or FOO=BAR
565 let mut strs: Vec<String> = nv.splitn(2, '=').map(str::to_owned).collect();
568 1 => (strs.pop().unwrap(), String::new()),
570 let end = strs.pop().unwrap();
571 (strs.pop().unwrap(), end)
573 n => panic!("Expected 1 or 2 strings, not {}", n),
577 fn parse_pp_exact(&self, line: &str, testfile: &Path) -> Option<PathBuf> {
578 if let Some(s) = self.parse_name_value_directive(line, "pp-exact") {
579 Some(PathBuf::from(&s))
580 } else if self.parse_name_directive(line, "pp-exact") {
581 testfile.file_name().map(PathBuf::from)
587 fn parse_custom_normalization(&self, mut line: &str, prefix: &str) -> Option<(String, String)> {
588 if self.parse_cfg_name_directive(line, prefix) == ParsedNameDirective::Match {
589 let from = parse_normalization_string(&mut line)?;
590 let to = parse_normalization_string(&mut line)?;
597 fn parse_needs_matching_clang(&self, line: &str) -> bool {
598 self.parse_name_directive(line, "needs-matching-clang")
601 fn parse_needs_profiler_support(&self, line: &str) -> bool {
602 self.parse_name_directive(line, "needs-profiler-support")
605 /// Parses a name-value directive which contains config-specific information, e.g., `ignore-x86`
606 /// or `normalize-stderr-32bit`.
607 fn parse_cfg_name_directive(&self, line: &str, prefix: &str) -> ParsedNameDirective {
608 if !line.as_bytes().starts_with(prefix.as_bytes()) {
609 return ParsedNameDirective::NoMatch;
611 if line.as_bytes().get(prefix.len()) != Some(&b'-') {
612 return ParsedNameDirective::NoMatch;
615 let name = line[prefix.len() + 1..].split(&[':', ' '][..]).next().unwrap();
617 let is_match = name == "test" ||
618 self.target == name || // triple
619 util::matches_os(&self.target, name) || // target
620 util::matches_env(&self.target, name) || // env
621 self.target.ends_with(name) || // target and env
622 name == util::get_arch(&self.target) || // architecture
623 name == util::get_pointer_width(&self.target) || // pointer width
624 name == self.stage_id.split('-').next().unwrap() || // stage
625 name == self.channel || // channel
626 (self.target != self.host && name == "cross-compile") ||
627 (name == "endian-big" && util::is_big_endian(&self.target)) ||
628 (self.remote_test_client.is_some() && name == "remote") ||
629 match self.compare_mode {
630 Some(CompareMode::Polonius) => name == "compare-mode-polonius",
631 Some(CompareMode::Chalk) => name == "compare-mode-chalk",
632 Some(CompareMode::SplitDwarf) => name == "compare-mode-split-dwarf",
633 Some(CompareMode::SplitDwarfSingle) => name == "compare-mode-split-dwarf-single",
636 (cfg!(debug_assertions) && name == "debug") ||
637 match self.debugger {
638 Some(Debugger::Cdb) => name == "cdb",
639 Some(Debugger::Gdb) => name == "gdb",
640 Some(Debugger::Lldb) => name == "lldb",
644 if is_match { ParsedNameDirective::Match } else { ParsedNameDirective::NoMatch }
647 fn has_cfg_prefix(&self, line: &str, prefix: &str) -> bool {
648 // returns whether this line contains this prefix or not. For prefix
649 // "ignore", returns true if line says "ignore-x86_64", "ignore-arch",
650 // "ignore-android" etc.
651 line.starts_with(prefix) && line.as_bytes().get(prefix.len()) == Some(&b'-')
654 fn parse_name_directive(&self, line: &str, directive: &str) -> bool {
655 // Ensure the directive is a whole word. Do not match "ignore-x86" when
656 // the line says "ignore-x86_64".
657 line.starts_with(directive)
658 && matches!(line.as_bytes().get(directive.len()), None | Some(&b' ') | Some(&b':'))
661 pub fn parse_name_value_directive(&self, line: &str, directive: &str) -> Option<String> {
662 let colon = directive.len();
663 if line.starts_with(directive) && line.as_bytes().get(colon) == Some(&b':') {
664 let value = line[(colon + 1)..].to_owned();
665 debug!("{}: {}", directive, value);
666 Some(expand_variables(value, self))
672 pub fn find_rust_src_root(&self) -> Option<PathBuf> {
673 let mut path = self.src_base.clone();
674 let path_postfix = Path::new("src/etc/lldb_batchmode.py");
677 if path.join(&path_postfix).is_file() {
685 fn parse_edition(&self, line: &str) -> Option<String> {
686 self.parse_name_value_directive(line, "edition")
689 fn set_name_directive(&self, line: &str, directive: &str, value: &mut bool) {
691 *value = self.parse_name_directive(line, directive)
695 fn set_name_value_directive<T>(
699 value: &mut Option<T>,
700 parse: impl FnOnce(String) -> T,
703 *value = self.parse_name_value_directive(line, directive).map(parse);
707 fn push_name_value_directive<T>(
712 parse: impl FnOnce(String) -> T,
714 if let Some(value) = self.parse_name_value_directive(line, directive).map(parse) {
720 fn expand_variables(mut value: String, config: &Config) -> String {
721 const CWD: &str = "{{cwd}}";
722 const SRC_BASE: &str = "{{src-base}}";
723 const BUILD_BASE: &str = "{{build-base}}";
725 if value.contains(CWD) {
726 let cwd = env::current_dir().unwrap();
727 value = value.replace(CWD, &cwd.to_string_lossy());
730 if value.contains(SRC_BASE) {
731 value = value.replace(SRC_BASE, &config.src_base.to_string_lossy());
734 if value.contains(BUILD_BASE) {
735 value = value.replace(BUILD_BASE, &config.build_base.to_string_lossy());
741 /// Finds the next quoted string `"..."` in `line`, and extract the content from it. Move the `line`
742 /// variable after the end of the quoted string.
747 /// let mut s = "normalize-stderr-32bit: \"something (32 bits)\" -> \"something ($WORD bits)\".";
748 /// let first = parse_normalization_string(&mut s);
749 /// assert_eq!(first, Some("something (32 bits)".to_owned()));
750 /// assert_eq!(s, " -> \"something ($WORD bits)\".");
752 fn parse_normalization_string(line: &mut &str) -> Option<String> {
753 // FIXME support escapes in strings.
754 let begin = line.find('"')? + 1;
755 let end = line[begin..].find('"')? + begin;
756 let result = line[begin..end].to_owned();
757 *line = &line[end + 1..];
761 pub fn extract_llvm_version(version: &str) -> Option<u32> {
762 let pat = |c: char| !c.is_ascii_digit() && c != '.';
763 let version_without_suffix = match version.find(pat) {
764 Some(pos) => &version[..pos],
767 let components: Vec<u32> = version_without_suffix
769 .map(|s| s.parse().expect("Malformed version component"))
771 let version = match *components {
773 [a, b] => a * 10_000 + b * 100,
774 [a, b, c] => a * 10_000 + b * 100 + c,
775 _ => panic!("Malformed version"),
780 /// Takes a directive of the form "<version1> [- <version2>]",
781 /// returns the numeric representation of <version1> and <version2> as
782 /// tuple: (<version1> as u32, <version2> as u32)
784 /// If the <version2> part is omitted, the second component of the tuple
785 /// is the same as <version1>.
786 fn extract_version_range<F>(line: &str, parse: F) -> Option<(u32, u32)>
788 F: Fn(&str) -> Option<u32>,
790 let mut splits = line.splitn(2, "- ").map(str::trim);
791 let min = splits.next().unwrap();
792 if min.ends_with('-') {
796 let max = splits.next();
802 let min = parse(min)?;
803 let max = match max {
804 Some(max) if max.is_empty() => return None,
805 Some(max) => parse(max)?,
812 pub fn make_test_description<R: Read>(
814 name: test::TestName,
818 ) -> test::TestDesc {
819 let mut ignore = false;
820 let ignore_message = None;
821 let mut should_fail = false;
823 let rustc_has_profiler_support = env::var_os("RUSTC_PROFILER_SUPPORT").is_some();
824 let rustc_has_sanitizer_support = env::var_os("RUSTC_SANITIZER_SUPPORT").is_some();
825 let has_asm_support = util::has_asm_support(&config.target);
826 let has_asan = util::ASAN_SUPPORTED_TARGETS.contains(&&*config.target);
827 let has_lsan = util::LSAN_SUPPORTED_TARGETS.contains(&&*config.target);
828 let has_msan = util::MSAN_SUPPORTED_TARGETS.contains(&&*config.target);
829 let has_tsan = util::TSAN_SUPPORTED_TARGETS.contains(&&*config.target);
830 let has_hwasan = util::HWASAN_SUPPORTED_TARGETS.contains(&&*config.target);
831 let has_memtag = util::MEMTAG_SUPPORTED_TARGETS.contains(&&*config.target);
832 // for `-Z gcc-ld=lld`
833 let has_rust_lld = config
836 .join(&config.target)
839 .join(if config.host.contains("windows") { "ld.exe" } else { "ld" })
841 iter_header(path, src, &mut |revision, ln| {
842 if revision.is_some() && revision != cfg {
845 ignore = match config.parse_cfg_name_directive(ln, "ignore") {
846 ParsedNameDirective::Match => true,
847 ParsedNameDirective::NoMatch => ignore,
849 if config.has_cfg_prefix(ln, "only") {
850 ignore = match config.parse_cfg_name_directive(ln, "only") {
851 ParsedNameDirective::Match => ignore,
852 ParsedNameDirective::NoMatch => true,
855 ignore |= ignore_llvm(config, ln);
857 config.run_clang_based_tests_with.is_none() && config.parse_needs_matching_clang(ln);
858 ignore |= !has_asm_support && config.parse_name_directive(ln, "needs-asm-support");
859 ignore |= !rustc_has_profiler_support && config.parse_needs_profiler_support(ln);
860 ignore |= !config.run_enabled() && config.parse_name_directive(ln, "needs-run-enabled");
861 ignore |= !rustc_has_sanitizer_support
862 && config.parse_name_directive(ln, "needs-sanitizer-support");
863 ignore |= !has_asan && config.parse_name_directive(ln, "needs-sanitizer-address");
864 ignore |= !has_lsan && config.parse_name_directive(ln, "needs-sanitizer-leak");
865 ignore |= !has_msan && config.parse_name_directive(ln, "needs-sanitizer-memory");
866 ignore |= !has_tsan && config.parse_name_directive(ln, "needs-sanitizer-thread");
867 ignore |= !has_hwasan && config.parse_name_directive(ln, "needs-sanitizer-hwaddress");
868 ignore |= !has_memtag && config.parse_name_directive(ln, "needs-sanitizer-memtag");
869 ignore |= config.target_panic == PanicStrategy::Abort
870 && config.parse_name_directive(ln, "needs-unwind");
871 ignore |= config.target == "wasm32-unknown-unknown"
872 && config.parse_name_directive(ln, directives::CHECK_RUN_RESULTS);
873 ignore |= config.debugger == Some(Debugger::Cdb) && ignore_cdb(config, ln);
874 ignore |= config.debugger == Some(Debugger::Gdb) && ignore_gdb(config, ln);
875 ignore |= config.debugger == Some(Debugger::Lldb) && ignore_lldb(config, ln);
876 ignore |= !has_rust_lld && config.parse_name_directive(ln, "needs-rust-lld");
877 should_fail |= config.parse_name_directive(ln, "should-fail");
880 // The `should-fail` annotation doesn't apply to pretty tests,
881 // since we run the pretty printer across all tests by default.
882 // If desired, we could add a `should-fail-pretty` annotation.
883 let should_panic = match config.mode {
884 crate::common::Pretty => test::ShouldPanic::No,
885 _ if should_fail => test::ShouldPanic::Yes,
886 _ => test::ShouldPanic::No,
896 test_type: test::TestType::Unknown,
900 fn ignore_cdb(config: &Config, line: &str) -> bool {
901 if let Some(actual_version) = config.cdb_version {
902 if let Some(min_version) = line.strip_prefix("min-cdb-version:").map(str::trim) {
903 let min_version = extract_cdb_version(min_version).unwrap_or_else(|| {
904 panic!("couldn't parse version range: {:?}", min_version);
907 // Ignore if actual version is smaller than the minimum
909 return actual_version < min_version;
915 fn ignore_gdb(config: &Config, line: &str) -> bool {
916 if let Some(actual_version) = config.gdb_version {
917 if let Some(rest) = line.strip_prefix("min-gdb-version:").map(str::trim) {
918 let (start_ver, end_ver) = extract_version_range(rest, extract_gdb_version)
920 panic!("couldn't parse version range: {:?}", rest);
923 if start_ver != end_ver {
924 panic!("Expected single GDB version")
926 // Ignore if actual version is smaller than the minimum
928 return actual_version < start_ver;
929 } else if let Some(rest) = line.strip_prefix("ignore-gdb-version:").map(str::trim) {
930 let (min_version, max_version) = extract_version_range(rest, extract_gdb_version)
932 panic!("couldn't parse version range: {:?}", rest);
935 if max_version < min_version {
936 panic!("Malformed GDB version range: max < min")
939 return actual_version >= min_version && actual_version <= max_version;
945 fn ignore_lldb(config: &Config, line: &str) -> bool {
946 if let Some(actual_version) = config.lldb_version {
947 if let Some(min_version) = line.strip_prefix("min-lldb-version:").map(str::trim) {
948 let min_version = min_version.parse().unwrap_or_else(|e| {
949 panic!("Unexpected format of LLDB version string: {}\n{:?}", min_version, e);
951 // Ignore if actual version is smaller the minimum required
953 actual_version < min_version
955 line.starts_with("rust-lldb") && !config.lldb_native_rust
962 fn ignore_llvm(config: &Config, line: &str) -> bool {
963 if config.system_llvm && line.starts_with("no-system-llvm") {
966 if let Some(needed_components) =
967 config.parse_name_value_directive(line, "needs-llvm-components")
969 let components: HashSet<_> = config.llvm_components.split_whitespace().collect();
970 if let Some(missing_component) = needed_components
972 .find(|needed_component| !components.contains(needed_component))
974 if env::var_os("COMPILETEST_NEEDS_ALL_LLVM_COMPONENTS").is_some() {
975 panic!("missing LLVM component: {}", missing_component);
980 if let Some(actual_version) = config.llvm_version {
981 if let Some(rest) = line.strip_prefix("min-llvm-version:").map(str::trim) {
982 let min_version = extract_llvm_version(rest).unwrap();
983 // Ignore if actual version is smaller the minimum required
985 actual_version < min_version
986 } else if let Some(rest) = line.strip_prefix("min-system-llvm-version:").map(str::trim) {
987 let min_version = extract_llvm_version(rest).unwrap();
988 // Ignore if using system LLVM and actual version
989 // is smaller the minimum required version
990 config.system_llvm && actual_version < min_version
991 } else if let Some(rest) = line.strip_prefix("ignore-llvm-version:").map(str::trim) {
992 // Syntax is: "ignore-llvm-version: <version1> [- <version2>]"
994 extract_version_range(rest, extract_llvm_version).unwrap_or_else(|| {
995 panic!("couldn't parse version range: {:?}", rest);
998 panic!("Malformed LLVM version range: max < min")
1000 // Ignore if version lies inside of range.
1001 actual_version >= v_min && actual_version <= v_max