1 use std::collections::HashSet;
4 use std::io::prelude::*;
5 use std::io::BufReader;
6 use std::path::{Path, PathBuf};
10 use crate::common::{CompareMode, Config, Debugger, FailMode, Mode, PanicStrategy, PassMode};
12 use crate::{extract_cdb_version, extract_gdb_version};
17 /// The result of parse_cfg_name_directive.
18 #[derive(Clone, Copy, PartialEq, Debug)]
19 enum ParsedNameDirective {
26 /// Properties which must be known very early, before actually running
29 pub struct EarlyProps {
31 pub aux_crate: Vec<(String, String)>,
32 pub revisions: Vec<String>,
36 pub fn from_file(config: &Config, testfile: &Path) -> Self {
37 let file = File::open(testfile).expect("open test file to parse earlyprops");
38 Self::from_reader(config, testfile, file)
41 pub fn from_reader<R: Read>(config: &Config, testfile: &Path, rdr: R) -> Self {
42 let mut props = EarlyProps::default();
43 iter_header(testfile, rdr, &mut |_, ln| {
44 if let Some(s) = config.parse_aux_build(ln) {
47 if let Some(ac) = config.parse_aux_crate(ln) {
48 props.aux_crate.push(ac);
50 config.parse_and_update_revisions(ln, &mut props.revisions);
56 #[derive(Clone, Debug)]
57 pub struct TestProps {
58 // Lines that should be expected, in order, on standard out
59 pub error_patterns: Vec<String>,
60 // Extra flags to pass to the compiler
61 pub compile_flags: Vec<String>,
62 // Extra flags to pass when the compiled code is run (such as --bench)
63 pub run_flags: Option<String>,
64 // If present, the name of a file that this test should match when
66 pub pp_exact: Option<PathBuf>,
67 // Other crates that should be compiled (typically from the same
68 // directory as the test, but for backwards compatibility reasons
69 // we also check the auxiliary directory)
70 pub aux_builds: Vec<String>,
71 // Similar to `aux_builds`, but a list of NAME=somelib.rs of dependencies
72 // to build and pass with the `--extern` flag.
73 pub aux_crates: Vec<(String, String)>,
74 // Environment settings to use for compiling
75 pub rustc_env: Vec<(String, String)>,
76 // Environment variables to unset prior to compiling.
77 // Variables are unset before applying 'rustc_env'.
78 pub unset_rustc_env: Vec<String>,
79 // Environment settings to use during execution
80 pub exec_env: Vec<(String, String)>,
81 // Lines to check if they appear in the expected debugger output
82 pub check_lines: Vec<String>,
83 // Build documentation for all specified aux-builds as well
84 pub build_aux_docs: bool,
85 // Flag to force a crate to be built with the host architecture
87 // Check stdout for error-pattern output as well as stderr
88 pub check_stdout: bool,
89 // Check stdout & stderr for output of run-pass test
90 pub check_run_results: bool,
91 // For UI tests, allows compiler to generate arbitrary output to stdout
92 pub dont_check_compiler_stdout: bool,
93 // For UI tests, allows compiler to generate arbitrary output to stderr
94 pub dont_check_compiler_stderr: bool,
95 // Don't force a --crate-type=dylib flag on the command line
97 // Set this for example if you have an auxiliary test file that contains
98 // a proc-macro and needs `#![crate_type = "proc-macro"]`. This ensures
99 // that the aux file is compiled as a `proc-macro` and not as a `dylib`.
100 pub no_prefer_dynamic: bool,
101 // Run -Zunpretty expanded when running pretty printing tests
102 pub pretty_expanded: bool,
103 // Which pretty mode are we testing with, default to 'normal'
104 pub pretty_mode: String,
105 // Only compare pretty output and don't try compiling
106 pub pretty_compare_only: bool,
107 // Patterns which must not appear in the output of a cfail test.
108 pub forbid_output: Vec<String>,
109 // Revisions to test for incremental compilation.
110 pub revisions: Vec<String>,
111 // Directory (if any) to use for incremental compilation. This is
112 // not set by end-users; rather it is set by the incremental
113 // testing harness and used when generating compilation
114 // arguments. (In particular, it propagates to the aux-builds.)
115 pub incremental_dir: Option<PathBuf>,
116 // If `true`, this test will use incremental compilation.
118 // This can be set manually with the `incremental` header, or implicitly
119 // by being a part of an incremental mode test. Using the `incremental`
120 // header should be avoided if possible; using an incremental mode test is
121 // preferred. Incremental mode tests support multiple passes, which can
122 // verify that the incremental cache can be loaded properly after being
123 // created. Just setting the header will only verify the behavior with
124 // creating an incremental cache, but doesn't check that it is created
127 // Compiletest will create the incremental directory, and ensure it is
128 // empty before the test starts. Incremental mode tests will reuse the
129 // incremental directory between passes in the same test.
130 pub incremental: bool,
131 // How far should the test proceed while still passing.
132 pass_mode: Option<PassMode>,
133 // Ignore `--pass` overrides from the command line for this test.
135 // How far this test should proceed to start failing.
136 pub fail_mode: Option<FailMode>,
137 // rustdoc will test the output of the `--test` option
138 pub check_test_line_numbers_match: bool,
139 // customized normalization rules
140 pub normalize_stdout: Vec<(String, String)>,
141 pub normalize_stderr: Vec<(String, String)>,
142 pub failure_status: i32,
143 // Whether or not `rustfix` should apply the `CodeSuggestion`s of this test and compile the
144 // resulting Rust code.
145 pub run_rustfix: bool,
146 // If true, `rustfix` will only apply `MachineApplicable` suggestions.
147 pub rustfix_only_machine_applicable: bool,
148 pub assembly_output: Option<String>,
149 // If true, the test is expected to ICE
150 pub should_ice: bool,
151 // If true, the stderr is expected to be different across bit-widths.
152 pub stderr_per_bitwidth: bool,
156 pub fn new() -> Self {
158 error_patterns: vec![],
159 compile_flags: vec![],
166 unset_rustc_env: vec![],
169 build_aux_docs: false,
172 check_run_results: false,
173 dont_check_compiler_stdout: false,
174 dont_check_compiler_stderr: false,
175 no_prefer_dynamic: false,
176 pretty_expanded: false,
177 pretty_mode: "normal".to_string(),
178 pretty_compare_only: false,
179 forbid_output: vec![],
180 incremental_dir: None,
185 check_test_line_numbers_match: false,
186 normalize_stdout: vec![],
187 normalize_stderr: vec![],
190 rustfix_only_machine_applicable: false,
191 assembly_output: None,
193 stderr_per_bitwidth: false,
197 pub fn from_aux_file(&self, testfile: &Path, cfg: Option<&str>, config: &Config) -> Self {
198 let mut props = TestProps::new();
200 // copy over select properties to the aux build:
201 props.incremental_dir = self.incremental_dir.clone();
202 props.load_from(testfile, cfg, config);
207 pub fn from_file(testfile: &Path, cfg: Option<&str>, config: &Config) -> Self {
208 let mut props = TestProps::new();
209 props.load_from(testfile, cfg, config);
211 match (props.pass_mode, props.fail_mode) {
212 (None, None) => props.fail_mode = Some(FailMode::Check),
213 (Some(_), None) | (None, Some(_)) => {}
214 (Some(_), Some(_)) => panic!("cannot use a *-fail and *-pass mode together"),
220 /// Loads properties from `testfile` into `props`. If a property is
221 /// tied to a particular revision `foo` (indicated by writing
222 /// `//[foo]`), then the property is ignored unless `cfg` is
224 fn load_from(&mut self, testfile: &Path, cfg: Option<&str>, config: &Config) {
225 let mut has_edition = false;
226 if !testfile.is_dir() {
227 let file = File::open(testfile).unwrap();
229 iter_header(testfile, file, &mut |revision, ln| {
230 if revision.is_some() && revision != cfg {
234 if let Some(ep) = config.parse_error_pattern(ln) {
235 self.error_patterns.push(ep);
238 if let Some(flags) = config.parse_compile_flags(ln) {
239 self.compile_flags.extend(flags.split_whitespace().map(|s| s.to_owned()));
242 if let Some(edition) = config.parse_edition(ln) {
243 self.compile_flags.push(format!("--edition={}", edition));
245 if edition == "2021" {
246 self.compile_flags.push("-Zunstable-options".to_string());
250 config.parse_and_update_revisions(ln, &mut self.revisions);
252 if self.run_flags.is_none() {
253 self.run_flags = config.parse_run_flags(ln);
256 if self.pp_exact.is_none() {
257 self.pp_exact = config.parse_pp_exact(ln, testfile);
260 if !self.should_ice {
261 self.should_ice = config.parse_should_ice(ln);
264 if !self.build_aux_docs {
265 self.build_aux_docs = config.parse_build_aux_docs(ln);
268 if !self.force_host {
269 self.force_host = config.parse_force_host(ln);
272 if !self.check_stdout {
273 self.check_stdout = config.parse_check_stdout(ln);
276 if !self.check_run_results {
277 self.check_run_results = config.parse_check_run_results(ln);
280 if !self.dont_check_compiler_stdout {
281 self.dont_check_compiler_stdout = config.parse_dont_check_compiler_stdout(ln);
284 if !self.dont_check_compiler_stderr {
285 self.dont_check_compiler_stderr = config.parse_dont_check_compiler_stderr(ln);
288 if !self.no_prefer_dynamic {
289 self.no_prefer_dynamic = config.parse_no_prefer_dynamic(ln);
292 if !self.pretty_expanded {
293 self.pretty_expanded = config.parse_pretty_expanded(ln);
296 if let Some(m) = config.parse_pretty_mode(ln) {
297 self.pretty_mode = m;
300 if !self.pretty_compare_only {
301 self.pretty_compare_only = config.parse_pretty_compare_only(ln);
304 if let Some(ab) = config.parse_aux_build(ln) {
305 self.aux_builds.push(ab);
308 if let Some(ac) = config.parse_aux_crate(ln) {
309 self.aux_crates.push(ac);
312 if let Some(ee) = config.parse_env(ln, "exec-env") {
313 self.exec_env.push(ee);
316 if let Some(ee) = config.parse_env(ln, "rustc-env") {
317 self.rustc_env.push(ee);
320 if let Some(ev) = config.parse_name_value_directive(ln, "unset-rustc-env") {
321 self.unset_rustc_env.push(ev);
324 if let Some(cl) = config.parse_check_line(ln) {
325 self.check_lines.push(cl);
328 if let Some(of) = config.parse_forbid_output(ln) {
329 self.forbid_output.push(of);
332 if !self.check_test_line_numbers_match {
333 self.check_test_line_numbers_match =
334 config.parse_check_test_line_numbers_match(ln);
337 self.update_pass_mode(ln, cfg, config);
338 self.update_fail_mode(ln, config);
340 if !self.ignore_pass {
341 self.ignore_pass = config.parse_ignore_pass(ln);
344 if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stdout") {
345 self.normalize_stdout.push(rule);
347 if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stderr") {
348 self.normalize_stderr.push(rule);
351 if let Some(code) = config.parse_failure_status(ln) {
352 self.failure_status = code;
355 if !self.run_rustfix {
356 self.run_rustfix = config.parse_run_rustfix(ln);
359 if !self.rustfix_only_machine_applicable {
360 self.rustfix_only_machine_applicable =
361 config.parse_rustfix_only_machine_applicable(ln);
364 if self.assembly_output.is_none() {
365 self.assembly_output = config.parse_assembly_output(ln);
368 if !self.stderr_per_bitwidth {
369 self.stderr_per_bitwidth = config.parse_stderr_per_bitwidth(ln);
372 if !self.incremental {
373 self.incremental = config.parse_incremental(ln);
378 if self.failure_status == -1 {
379 self.failure_status = 1;
382 self.failure_status = 101;
385 if config.mode == Mode::Incremental {
386 self.incremental = true;
389 for key in &["RUST_TEST_NOCAPTURE", "RUST_TEST_THREADS"] {
390 if let Ok(val) = env::var(key) {
391 if self.exec_env.iter().find(|&&(ref x, _)| x == key).is_none() {
392 self.exec_env.push(((*key).to_owned(), val))
397 if let (Some(edition), false) = (&config.edition, has_edition) {
398 self.compile_flags.push(format!("--edition={}", edition));
402 fn update_fail_mode(&mut self, ln: &str, config: &Config) {
403 let check_ui = |mode: &str| {
404 if config.mode != Mode::Ui {
405 panic!("`{}-fail` header is only supported in UI tests", mode);
408 if config.mode == Mode::Ui && config.parse_name_directive(ln, "compile-fail") {
409 panic!("`compile-fail` header is useless in UI tests");
411 let fail_mode = if config.parse_name_directive(ln, "check-fail") {
413 Some(FailMode::Check)
414 } else if config.parse_name_directive(ln, "build-fail") {
416 Some(FailMode::Build)
417 } else if config.parse_name_directive(ln, "run-fail") {
423 match (self.fail_mode, fail_mode) {
424 (None, Some(_)) => self.fail_mode = fail_mode,
425 (Some(_), Some(_)) => panic!("multiple `*-fail` headers in a single test"),
430 fn update_pass_mode(&mut self, ln: &str, revision: Option<&str>, config: &Config) {
431 let check_no_run = |s| {
432 if config.mode != Mode::Ui && config.mode != Mode::Incremental {
433 panic!("`{}` header is only supported in UI and incremental tests", s);
435 if config.mode == Mode::Incremental
436 && !revision.map_or(false, |r| r.starts_with("cfail"))
437 && !self.revisions.iter().all(|r| r.starts_with("cfail"))
439 panic!("`{}` header is only supported in `cfail` incremental tests", s);
442 let pass_mode = if config.parse_name_directive(ln, "check-pass") {
443 check_no_run("check-pass");
444 Some(PassMode::Check)
445 } else if config.parse_name_directive(ln, "build-pass") {
446 check_no_run("build-pass");
447 Some(PassMode::Build)
448 } else if config.parse_name_directive(ln, "run-pass") {
449 if config.mode != Mode::Ui {
450 panic!("`run-pass` header is only supported in UI tests")
456 match (self.pass_mode, pass_mode) {
457 (None, Some(_)) => self.pass_mode = pass_mode,
458 (Some(_), Some(_)) => panic!("multiple `*-pass` headers in a single test"),
463 pub fn pass_mode(&self, config: &Config) -> Option<PassMode> {
464 if !self.ignore_pass && self.fail_mode.is_none() && config.mode == Mode::Ui {
465 if let (mode @ Some(_), Some(_)) = (config.force_pass_mode, self.pass_mode) {
472 // does not consider CLI override for pass mode
473 pub fn local_pass_mode(&self) -> Option<PassMode> {
478 fn iter_header<R: Read>(testfile: &Path, rdr: R, it: &mut dyn FnMut(Option<&str>, &str)) {
479 if testfile.is_dir() {
483 let comment = if testfile.extension().map(|e| e == "rs") == Some(true) { "//" } else { "#" };
485 let mut rdr = BufReader::new(rdr);
486 let mut ln = String::new();
490 if rdr.read_line(&mut ln).unwrap() == 0 {
494 // Assume that any directives will be found before the first
495 // module or function. This doesn't seem to be an optimization
496 // with a warm page cache. Maybe with a cold one.
498 if ln.starts_with("fn") || ln.starts_with("mod") {
500 } else if ln.starts_with(comment) && ln[comment.len()..].trim_start().starts_with('[') {
501 // A comment like `//[foo]` is specific to revision `foo`
502 if let Some(close_brace) = ln.find(']') {
503 let open_brace = ln.find('[').unwrap();
504 let lncfg = &ln[open_brace + 1..close_brace];
505 it(Some(lncfg), ln[(close_brace + 1)..].trim_start());
507 panic!("malformed condition directive: expected `{}[foo]`, found `{}`", comment, ln)
509 } else if ln.starts_with(comment) {
510 it(None, ln[comment.len()..].trim_start());
516 fn parse_should_ice(&self, line: &str) -> bool {
517 self.parse_name_directive(line, "should-ice")
519 fn parse_error_pattern(&self, line: &str) -> Option<String> {
520 self.parse_name_value_directive(line, "error-pattern")
523 fn parse_forbid_output(&self, line: &str) -> Option<String> {
524 self.parse_name_value_directive(line, "forbid-output")
527 fn parse_aux_build(&self, line: &str) -> Option<String> {
528 self.parse_name_value_directive(line, "aux-build").map(|r| r.trim().to_string())
531 fn parse_aux_crate(&self, line: &str) -> Option<(String, String)> {
532 self.parse_name_value_directive(line, "aux-crate").map(|r| {
533 let mut parts = r.trim().splitn(2, '=');
535 parts.next().expect("missing aux-crate name (e.g. log=log.rs)").to_string(),
536 parts.next().expect("missing aux-crate value (e.g. log=log.rs)").to_string(),
541 fn parse_compile_flags(&self, line: &str) -> Option<String> {
542 self.parse_name_value_directive(line, "compile-flags")
545 fn parse_and_update_revisions(&self, line: &str, existing: &mut Vec<String>) {
546 if let Some(raw) = self.parse_name_value_directive(line, "revisions") {
547 let mut duplicates: HashSet<_> = existing.iter().cloned().collect();
548 for revision in raw.split_whitespace().map(|r| r.to_string()) {
549 if !duplicates.insert(revision.clone()) {
550 panic!("Duplicate revision: `{}` in line `{}`", revision, raw);
552 existing.push(revision);
557 fn parse_run_flags(&self, line: &str) -> Option<String> {
558 self.parse_name_value_directive(line, "run-flags")
561 fn parse_check_line(&self, line: &str) -> Option<String> {
562 self.parse_name_value_directive(line, "check")
565 fn parse_force_host(&self, line: &str) -> bool {
566 self.parse_name_directive(line, "force-host")
569 fn parse_build_aux_docs(&self, line: &str) -> bool {
570 self.parse_name_directive(line, "build-aux-docs")
573 fn parse_check_stdout(&self, line: &str) -> bool {
574 self.parse_name_directive(line, "check-stdout")
577 fn parse_check_run_results(&self, line: &str) -> bool {
578 self.parse_name_directive(line, "check-run-results")
581 fn parse_dont_check_compiler_stdout(&self, line: &str) -> bool {
582 self.parse_name_directive(line, "dont-check-compiler-stdout")
585 fn parse_dont_check_compiler_stderr(&self, line: &str) -> bool {
586 self.parse_name_directive(line, "dont-check-compiler-stderr")
589 fn parse_no_prefer_dynamic(&self, line: &str) -> bool {
590 self.parse_name_directive(line, "no-prefer-dynamic")
593 fn parse_pretty_expanded(&self, line: &str) -> bool {
594 self.parse_name_directive(line, "pretty-expanded")
597 fn parse_pretty_mode(&self, line: &str) -> Option<String> {
598 self.parse_name_value_directive(line, "pretty-mode")
601 fn parse_pretty_compare_only(&self, line: &str) -> bool {
602 self.parse_name_directive(line, "pretty-compare-only")
605 fn parse_failure_status(&self, line: &str) -> Option<i32> {
606 match self.parse_name_value_directive(line, "failure-status") {
607 Some(code) => code.trim().parse::<i32>().ok(),
612 fn parse_check_test_line_numbers_match(&self, line: &str) -> bool {
613 self.parse_name_directive(line, "check-test-line-numbers-match")
616 fn parse_ignore_pass(&self, line: &str) -> bool {
617 self.parse_name_directive(line, "ignore-pass")
620 fn parse_stderr_per_bitwidth(&self, line: &str) -> bool {
621 self.parse_name_directive(line, "stderr-per-bitwidth")
624 fn parse_assembly_output(&self, line: &str) -> Option<String> {
625 self.parse_name_value_directive(line, "assembly-output").map(|r| r.trim().to_string())
628 fn parse_env(&self, line: &str, name: &str) -> Option<(String, String)> {
629 self.parse_name_value_directive(line, name).map(|nv| {
630 // nv is either FOO or FOO=BAR
631 let mut strs: Vec<String> = nv.splitn(2, '=').map(str::to_owned).collect();
634 1 => (strs.pop().unwrap(), String::new()),
636 let end = strs.pop().unwrap();
637 (strs.pop().unwrap(), end)
639 n => panic!("Expected 1 or 2 strings, not {}", n),
644 fn parse_pp_exact(&self, line: &str, testfile: &Path) -> Option<PathBuf> {
645 if let Some(s) = self.parse_name_value_directive(line, "pp-exact") {
646 Some(PathBuf::from(&s))
647 } else if self.parse_name_directive(line, "pp-exact") {
648 testfile.file_name().map(PathBuf::from)
654 fn parse_custom_normalization(&self, mut line: &str, prefix: &str) -> Option<(String, String)> {
655 if self.parse_cfg_name_directive(line, prefix) == ParsedNameDirective::Match {
656 let from = parse_normalization_string(&mut line)?;
657 let to = parse_normalization_string(&mut line)?;
664 fn parse_needs_matching_clang(&self, line: &str) -> bool {
665 self.parse_name_directive(line, "needs-matching-clang")
668 fn parse_needs_profiler_support(&self, line: &str) -> bool {
669 self.parse_name_directive(line, "needs-profiler-support")
672 /// Parses a name-value directive which contains config-specific information, e.g., `ignore-x86`
673 /// or `normalize-stderr-32bit`.
674 fn parse_cfg_name_directive(&self, line: &str, prefix: &str) -> ParsedNameDirective {
675 if !line.as_bytes().starts_with(prefix.as_bytes()) {
676 return ParsedNameDirective::NoMatch;
678 if line.as_bytes().get(prefix.len()) != Some(&b'-') {
679 return ParsedNameDirective::NoMatch;
682 let name = line[prefix.len() + 1..].split(&[':', ' '][..]).next().unwrap();
684 let is_match = name == "test" ||
685 self.target == name || // triple
686 util::matches_os(&self.target, name) || // target
687 util::matches_env(&self.target, name) || // env
688 self.target.ends_with(name) || // target and env
689 name == util::get_arch(&self.target) || // architecture
690 name == util::get_pointer_width(&self.target) || // pointer width
691 name == self.stage_id.split('-').next().unwrap() || // stage
692 name == self.channel || // channel
693 (self.target != self.host && name == "cross-compile") ||
694 (name == "endian-big" && util::is_big_endian(&self.target)) ||
695 (self.remote_test_client.is_some() && name == "remote") ||
696 match self.compare_mode {
697 Some(CompareMode::Nll) => name == "compare-mode-nll",
698 Some(CompareMode::Polonius) => name == "compare-mode-polonius",
699 Some(CompareMode::Chalk) => name == "compare-mode-chalk",
700 Some(CompareMode::SplitDwarf) => name == "compare-mode-split-dwarf",
701 Some(CompareMode::SplitDwarfSingle) => name == "compare-mode-split-dwarf-single",
704 (cfg!(debug_assertions) && name == "debug") ||
705 match self.debugger {
706 Some(Debugger::Cdb) => name == "cdb",
707 Some(Debugger::Gdb) => name == "gdb",
708 Some(Debugger::Lldb) => name == "lldb",
712 if is_match { ParsedNameDirective::Match } else { ParsedNameDirective::NoMatch }
715 fn has_cfg_prefix(&self, line: &str, prefix: &str) -> bool {
716 // returns whether this line contains this prefix or not. For prefix
717 // "ignore", returns true if line says "ignore-x86_64", "ignore-arch",
718 // "ignore-android" etc.
719 line.starts_with(prefix) && line.as_bytes().get(prefix.len()) == Some(&b'-')
722 fn parse_name_directive(&self, line: &str, directive: &str) -> bool {
723 // Ensure the directive is a whole word. Do not match "ignore-x86" when
724 // the line says "ignore-x86_64".
725 line.starts_with(directive)
726 && matches!(line.as_bytes().get(directive.len()), None | Some(&b' ') | Some(&b':'))
729 pub fn parse_name_value_directive(&self, line: &str, directive: &str) -> Option<String> {
730 let colon = directive.len();
731 if line.starts_with(directive) && line.as_bytes().get(colon) == Some(&b':') {
732 let value = line[(colon + 1)..].to_owned();
733 debug!("{}: {}", directive, value);
734 Some(expand_variables(value, self))
740 pub fn find_rust_src_root(&self) -> Option<PathBuf> {
741 let mut path = self.src_base.clone();
742 let path_postfix = Path::new("src/etc/lldb_batchmode.py");
745 if path.join(&path_postfix).is_file() {
753 fn parse_run_rustfix(&self, line: &str) -> bool {
754 self.parse_name_directive(line, "run-rustfix")
757 fn parse_rustfix_only_machine_applicable(&self, line: &str) -> bool {
758 self.parse_name_directive(line, "rustfix-only-machine-applicable")
761 fn parse_edition(&self, line: &str) -> Option<String> {
762 self.parse_name_value_directive(line, "edition")
765 fn parse_incremental(&self, line: &str) -> bool {
766 self.parse_name_directive(line, "incremental")
770 fn expand_variables(mut value: String, config: &Config) -> String {
771 const CWD: &str = "{{cwd}}";
772 const SRC_BASE: &str = "{{src-base}}";
773 const BUILD_BASE: &str = "{{build-base}}";
775 if value.contains(CWD) {
776 let cwd = env::current_dir().unwrap();
777 value = value.replace(CWD, &cwd.to_string_lossy());
780 if value.contains(SRC_BASE) {
781 value = value.replace(SRC_BASE, &config.src_base.to_string_lossy());
784 if value.contains(BUILD_BASE) {
785 value = value.replace(BUILD_BASE, &config.build_base.to_string_lossy());
791 /// Finds the next quoted string `"..."` in `line`, and extract the content from it. Move the `line`
792 /// variable after the end of the quoted string.
797 /// let mut s = "normalize-stderr-32bit: \"something (32 bits)\" -> \"something ($WORD bits)\".";
798 /// let first = parse_normalization_string(&mut s);
799 /// assert_eq!(first, Some("something (32 bits)".to_owned()));
800 /// assert_eq!(s, " -> \"something ($WORD bits)\".");
802 fn parse_normalization_string(line: &mut &str) -> Option<String> {
803 // FIXME support escapes in strings.
804 let begin = line.find('"')? + 1;
805 let end = line[begin..].find('"')? + begin;
806 let result = line[begin..end].to_owned();
807 *line = &line[end + 1..];
811 pub fn extract_llvm_version(version: &str) -> Option<u32> {
812 let pat = |c: char| !c.is_ascii_digit() && c != '.';
813 let version_without_suffix = match version.find(pat) {
814 Some(pos) => &version[..pos],
817 let components: Vec<u32> = version_without_suffix
819 .map(|s| s.parse().expect("Malformed version component"))
821 let version = match *components {
823 [a, b] => a * 10_000 + b * 100,
824 [a, b, c] => a * 10_000 + b * 100 + c,
825 _ => panic!("Malformed version"),
830 /// Takes a directive of the form "<version1> [- <version2>]",
831 /// returns the numeric representation of <version1> and <version2> as
832 /// tuple: (<version1> as u32, <version2> as u32)
834 /// If the <version2> part is omitted, the second component of the tuple
835 /// is the same as <version1>.
836 fn extract_version_range<F>(line: &str, parse: F) -> Option<(u32, u32)>
838 F: Fn(&str) -> Option<u32>,
840 let mut splits = line.splitn(2, "- ").map(str::trim);
841 let min = splits.next().unwrap();
842 if min.ends_with('-') {
846 let max = splits.next();
852 let min = parse(min)?;
853 let max = match max {
854 Some(max) if max.is_empty() => return None,
855 Some(max) => parse(max)?,
862 pub fn make_test_description<R: Read>(
864 name: test::TestName,
868 ) -> test::TestDesc {
869 let mut ignore = false;
870 let mut should_fail = false;
872 let rustc_has_profiler_support = env::var_os("RUSTC_PROFILER_SUPPORT").is_some();
873 let rustc_has_sanitizer_support = env::var_os("RUSTC_SANITIZER_SUPPORT").is_some();
874 let has_asm_support = util::has_asm_support(&config.target);
875 let has_asan = util::ASAN_SUPPORTED_TARGETS.contains(&&*config.target);
876 let has_lsan = util::LSAN_SUPPORTED_TARGETS.contains(&&*config.target);
877 let has_msan = util::MSAN_SUPPORTED_TARGETS.contains(&&*config.target);
878 let has_tsan = util::TSAN_SUPPORTED_TARGETS.contains(&&*config.target);
879 let has_hwasan = util::HWASAN_SUPPORTED_TARGETS.contains(&&*config.target);
880 // for `-Z gcc-ld=lld`
881 let has_rust_lld = config
884 .join(&config.target)
887 .join(if config.host.contains("windows") { "ld.exe" } else { "ld" })
889 iter_header(path, src, &mut |revision, ln| {
890 if revision.is_some() && revision != cfg {
893 ignore = match config.parse_cfg_name_directive(ln, "ignore") {
894 ParsedNameDirective::Match => true,
895 ParsedNameDirective::NoMatch => ignore,
897 if config.has_cfg_prefix(ln, "only") {
898 ignore = match config.parse_cfg_name_directive(ln, "only") {
899 ParsedNameDirective::Match => ignore,
900 ParsedNameDirective::NoMatch => true,
903 ignore |= ignore_llvm(config, ln);
905 config.run_clang_based_tests_with.is_none() && config.parse_needs_matching_clang(ln);
906 ignore |= !has_asm_support && config.parse_name_directive(ln, "needs-asm-support");
907 ignore |= !rustc_has_profiler_support && config.parse_needs_profiler_support(ln);
908 ignore |= !config.run_enabled() && config.parse_name_directive(ln, "needs-run-enabled");
909 ignore |= !rustc_has_sanitizer_support
910 && config.parse_name_directive(ln, "needs-sanitizer-support");
911 ignore |= !has_asan && config.parse_name_directive(ln, "needs-sanitizer-address");
912 ignore |= !has_lsan && config.parse_name_directive(ln, "needs-sanitizer-leak");
913 ignore |= !has_msan && config.parse_name_directive(ln, "needs-sanitizer-memory");
914 ignore |= !has_tsan && config.parse_name_directive(ln, "needs-sanitizer-thread");
915 ignore |= !has_hwasan && config.parse_name_directive(ln, "needs-sanitizer-hwaddress");
916 ignore |= config.target_panic == PanicStrategy::Abort
917 && config.parse_name_directive(ln, "needs-unwind");
918 ignore |= config.target == "wasm32-unknown-unknown" && config.parse_check_run_results(ln);
919 ignore |= config.debugger == Some(Debugger::Cdb) && ignore_cdb(config, ln);
920 ignore |= config.debugger == Some(Debugger::Gdb) && ignore_gdb(config, ln);
921 ignore |= config.debugger == Some(Debugger::Lldb) && ignore_lldb(config, ln);
922 ignore |= !has_rust_lld && config.parse_name_directive(ln, "needs-rust-lld");
923 should_fail |= config.parse_name_directive(ln, "should-fail");
926 // The `should-fail` annotation doesn't apply to pretty tests,
927 // since we run the pretty printer across all tests by default.
928 // If desired, we could add a `should-fail-pretty` annotation.
929 let should_panic = match config.mode {
930 crate::common::Pretty => test::ShouldPanic::No,
931 _ if should_fail => test::ShouldPanic::Yes,
932 _ => test::ShouldPanic::No,
942 test_type: test::TestType::Unknown,
946 fn ignore_cdb(config: &Config, line: &str) -> bool {
947 if let Some(actual_version) = config.cdb_version {
948 if let Some(min_version) = line.strip_prefix("min-cdb-version:").map(str::trim) {
949 let min_version = extract_cdb_version(min_version).unwrap_or_else(|| {
950 panic!("couldn't parse version range: {:?}", min_version);
953 // Ignore if actual version is smaller than the minimum
955 return actual_version < min_version;
961 fn ignore_gdb(config: &Config, line: &str) -> bool {
962 if let Some(actual_version) = config.gdb_version {
963 if let Some(rest) = line.strip_prefix("min-gdb-version:").map(str::trim) {
964 let (start_ver, end_ver) = extract_version_range(rest, extract_gdb_version)
966 panic!("couldn't parse version range: {:?}", rest);
969 if start_ver != end_ver {
970 panic!("Expected single GDB version")
972 // Ignore if actual version is smaller than the minimum
974 return actual_version < start_ver;
975 } else if let Some(rest) = line.strip_prefix("ignore-gdb-version:").map(str::trim) {
976 let (min_version, max_version) = extract_version_range(rest, extract_gdb_version)
978 panic!("couldn't parse version range: {:?}", rest);
981 if max_version < min_version {
982 panic!("Malformed GDB version range: max < min")
985 return actual_version >= min_version && actual_version <= max_version;
991 fn ignore_lldb(config: &Config, line: &str) -> bool {
992 if let Some(actual_version) = config.lldb_version {
993 if let Some(min_version) = line.strip_prefix("min-lldb-version:").map(str::trim) {
994 let min_version = min_version.parse().unwrap_or_else(|e| {
995 panic!("Unexpected format of LLDB version string: {}\n{:?}", min_version, e);
997 // Ignore if actual version is smaller the minimum required
999 actual_version < min_version
1001 line.starts_with("rust-lldb") && !config.lldb_native_rust
1008 fn ignore_llvm(config: &Config, line: &str) -> bool {
1009 if config.system_llvm && line.starts_with("no-system-llvm") {
1012 if let Some(needed_components) =
1013 config.parse_name_value_directive(line, "needs-llvm-components")
1015 let components: HashSet<_> = config.llvm_components.split_whitespace().collect();
1016 if let Some(missing_component) = needed_components
1018 .find(|needed_component| !components.contains(needed_component))
1020 if env::var_os("COMPILETEST_NEEDS_ALL_LLVM_COMPONENTS").is_some() {
1021 panic!("missing LLVM component: {}", missing_component);
1026 if let Some(actual_version) = config.llvm_version {
1027 if let Some(rest) = line.strip_prefix("min-llvm-version:").map(str::trim) {
1028 let min_version = extract_llvm_version(rest).unwrap();
1029 // Ignore if actual version is smaller the minimum required
1031 actual_version < min_version
1032 } else if let Some(rest) = line.strip_prefix("min-system-llvm-version:").map(str::trim) {
1033 let min_version = extract_llvm_version(rest).unwrap();
1034 // Ignore if using system LLVM and actual version
1035 // is smaller the minimum required version
1036 config.system_llvm && actual_version < min_version
1037 } else if let Some(rest) = line.strip_prefix("ignore-llvm-version:").map(str::trim) {
1038 // Syntax is: "ignore-llvm-version: <version1> [- <version2>]"
1039 let (v_min, v_max) =
1040 extract_version_range(rest, extract_llvm_version).unwrap_or_else(|| {
1041 panic!("couldn't parse version range: {:?}", rest);
1044 panic!("Malformed LLVM version range: max < min")
1046 // Ignore if version lies inside of range.
1047 actual_version >= v_min && actual_version <= v_max