3 use std::io::prelude::*;
4 use std::io::BufReader;
5 use std::path::{Path, PathBuf};
9 use crate::common::{self, CompareMode, Config, Mode, PassMode};
11 use crate::extract_gdb_version;
16 /// Whether to ignore the test.
17 #[derive(Clone, Copy, PartialEq, Debug)]
21 /// Ignore it totally.
23 /// Ignore only the gdb test, but run the lldb test.
25 /// Ignore only the lldb test, but run the gdb test.
30 pub fn can_run_gdb(&self) -> bool {
31 *self == Ignore::Run || *self == Ignore::IgnoreLldb
34 pub fn can_run_lldb(&self) -> bool {
35 *self == Ignore::Run || *self == Ignore::IgnoreGdb
38 pub fn no_gdb(&self) -> Ignore {
40 Ignore::Run => Ignore::IgnoreGdb,
41 Ignore::IgnoreGdb => Ignore::IgnoreGdb,
46 pub fn no_lldb(&self) -> Ignore {
48 Ignore::Run => Ignore::IgnoreLldb,
49 Ignore::IgnoreLldb => Ignore::IgnoreLldb,
55 /// The result of parse_cfg_name_directive.
56 #[derive(Clone, Copy, PartialEq, Debug)]
57 enum ParsedNameDirective {
62 /// Mode was DebugInfoGdbLldb and this matched gdb.
64 /// Mode was DebugInfoGdbLldb and this matched lldb.
68 /// Properties which must be known very early, before actually running
70 pub struct EarlyProps {
72 pub should_fail: bool,
74 pub revisions: Vec<String>,
78 pub fn from_file(config: &Config, testfile: &Path) -> Self {
79 let mut props = EarlyProps {
86 if config.mode == common::DebugInfoGdbLldb {
87 if config.lldb_python_dir.is_none() {
88 props.ignore = props.ignore.no_lldb();
90 if config.gdb_version.is_none() {
91 props.ignore = props.ignore.no_gdb();
93 } else if config.mode == common::DebugInfoCdb {
94 if config.cdb.is_none() {
95 props.ignore = Ignore::Ignore;
99 let rustc_has_profiler_support = env::var_os("RUSTC_PROFILER_SUPPORT").is_some();
100 let rustc_has_sanitizer_support = env::var_os("RUSTC_SANITIZER_SUPPORT").is_some();
102 iter_header(testfile, None, &mut |ln| {
103 // we should check if any only-<platform> exists and if it exists
104 // and does not matches the current platform, skip the test
105 if props.ignore != Ignore::Ignore {
106 props.ignore = match config.parse_cfg_name_directive(ln, "ignore") {
107 ParsedNameDirective::Match => Ignore::Ignore,
108 ParsedNameDirective::NoMatch => props.ignore,
109 ParsedNameDirective::MatchGdb => props.ignore.no_gdb(),
110 ParsedNameDirective::MatchLldb => props.ignore.no_lldb(),
113 if config.has_cfg_prefix(ln, "only") {
114 props.ignore = match config.parse_cfg_name_directive(ln, "only") {
115 ParsedNameDirective::Match => props.ignore,
116 ParsedNameDirective::NoMatch => Ignore::Ignore,
117 ParsedNameDirective::MatchLldb => props.ignore.no_gdb(),
118 ParsedNameDirective::MatchGdb => props.ignore.no_lldb(),
122 if ignore_llvm(config, ln) {
123 props.ignore = Ignore::Ignore;
126 if config.run_clang_based_tests_with.is_none() &&
127 config.parse_needs_matching_clang(ln) {
128 props.ignore = Ignore::Ignore;
131 if !rustc_has_profiler_support &&
132 config.parse_needs_profiler_support(ln) {
133 props.ignore = Ignore::Ignore;
136 if !rustc_has_sanitizer_support &&
137 config.parse_needs_sanitizer_support(ln) {
138 props.ignore = Ignore::Ignore;
141 if config.target == "wasm32-unknown-unknown" && config.parse_check_run_results(ln) {
142 props.ignore = Ignore::Ignore;
146 if (config.mode == common::DebugInfoGdb || config.mode == common::DebugInfoGdbLldb) &&
147 props.ignore.can_run_gdb() && ignore_gdb(config, ln) {
148 props.ignore = props.ignore.no_gdb();
151 if (config.mode == common::DebugInfoLldb || config.mode == common::DebugInfoGdbLldb) &&
152 props.ignore.can_run_lldb() && ignore_lldb(config, ln) {
153 props.ignore = props.ignore.no_lldb();
156 if let Some(s) = config.parse_aux_build(ln) {
160 if let Some(r) = config.parse_revisions(ln) {
161 props.revisions.extend(r);
164 props.should_fail = props.should_fail || config.parse_name_directive(ln, "should-fail");
169 fn ignore_gdb(config: &Config, line: &str) -> bool {
170 if let Some(actual_version) = config.gdb_version {
171 if line.starts_with("min-gdb-version") {
172 let (start_ver, end_ver) = extract_gdb_version_range(line);
174 if start_ver != end_ver {
175 panic!("Expected single GDB version")
177 // Ignore if actual version is smaller the minimum required
179 actual_version < start_ver
180 } else if line.starts_with("ignore-gdb-version") {
181 let (min_version, max_version) = extract_gdb_version_range(line);
183 if max_version < min_version {
184 panic!("Malformed GDB version range: max < min")
187 actual_version >= min_version && actual_version <= max_version
196 // Takes a directive of the form "ignore-gdb-version <version1> [- <version2>]",
197 // returns the numeric representation of <version1> and <version2> as
198 // tuple: (<version1> as u32, <version2> as u32)
199 // If the <version2> part is omitted, the second component of the tuple
200 // is the same as <version1>.
201 fn extract_gdb_version_range(line: &str) -> (u32, u32) {
202 const ERROR_MESSAGE: &'static str = "Malformed GDB version directive";
204 let range_components = line.split(&[' ', '-'][..])
205 .filter(|word| !word.is_empty())
206 .map(extract_gdb_version)
207 .skip_while(Option::is_none)
208 .take(3) // 3 or more = invalid, so take at most 3.
209 .collect::<Vec<Option<u32>>>();
211 match range_components.len() {
213 let v = range_components[0].unwrap();
217 let v_min = range_components[0].unwrap();
218 let v_max = range_components[1].expect(ERROR_MESSAGE);
221 _ => panic!(ERROR_MESSAGE),
225 fn ignore_lldb(config: &Config, line: &str) -> bool {
226 if let Some(ref actual_version) = config.lldb_version {
227 if line.starts_with("min-lldb-version") {
228 let min_version = line.trim_end()
231 .expect("Malformed lldb version directive");
232 // Ignore if actual version is smaller the minimum required
234 lldb_version_to_int(actual_version) < lldb_version_to_int(min_version)
235 } else if line.starts_with("rust-lldb") && !config.lldb_native_rust {
245 fn ignore_llvm(config: &Config, line: &str) -> bool {
246 if config.system_llvm && line.starts_with("no-system-llvm") {
249 if let Some(ref actual_version) = config.llvm_version {
250 if line.starts_with("min-llvm-version") {
251 let min_version = line.trim_end()
254 .expect("Malformed llvm version directive");
255 // Ignore if actual version is smaller the minimum required
257 &actual_version[..] < min_version
258 } else if line.starts_with("min-system-llvm-version") {
259 let min_version = line.trim_end()
262 .expect("Malformed llvm version directive");
263 // Ignore if using system LLVM and actual version
264 // is smaller the minimum required version
265 config.system_llvm && &actual_version[..] < min_version
266 } else if line.starts_with("ignore-llvm-version") {
267 // Syntax is: "ignore-llvm-version <version1> [- <version2>]"
268 let range_components = line.split(' ')
269 .skip(1) // Skip the directive.
271 .filter(|word| !word.is_empty() && word != &"-")
272 .take(3) // 3 or more = invalid, so take at most 3.
273 .collect::<Vec<&str>>();
274 match range_components.len() {
276 &actual_version[..] == range_components[0]
279 let v_min = range_components[0];
280 let v_max = range_components[1];
282 panic!("Malformed LLVM version range: max < min")
284 // Ignore if version lies inside of range.
285 &actual_version[..] >= v_min && &actual_version[..] <= v_max
287 _ => panic!("Malformed LLVM version directive"),
299 #[derive(Clone, Debug)]
300 pub struct TestProps {
301 // Lines that should be expected, in order, on standard out
302 pub error_patterns: Vec<String>,
303 // Extra flags to pass to the compiler
304 pub compile_flags: Vec<String>,
305 // Extra flags to pass when the compiled code is run (such as --bench)
306 pub run_flags: Option<String>,
307 // If present, the name of a file that this test should match when
309 pub pp_exact: Option<PathBuf>,
310 // Other crates that should be compiled (typically from the same
311 // directory as the test, but for backwards compatibility reasons
312 // we also check the auxiliary directory)
313 pub aux_builds: Vec<String>,
314 // A list of crates to pass '--extern priv:name=PATH' flags for
315 // This should be a subset of 'aux_build'
316 // FIXME: Replace this with a better solution: https://github.com/rust-lang/rust/pull/54020
317 pub extern_private: Vec<String>,
318 // Environment settings to use for compiling
319 pub rustc_env: Vec<(String, String)>,
320 // Environment variables to unset prior to compiling.
321 // Variables are unset before applying 'rustc_env'.
322 pub unset_rustc_env: Vec<String>,
323 // Environment settings to use during execution
324 pub exec_env: Vec<(String, String)>,
325 // Lines to check if they appear in the expected debugger output
326 pub check_lines: Vec<String>,
327 // Build documentation for all specified aux-builds as well
328 pub build_aux_docs: bool,
329 // Flag to force a crate to be built with the host architecture
330 pub force_host: bool,
331 // Check stdout for error-pattern output as well as stderr
332 pub check_stdout: bool,
333 // Check stdout & stderr for output of run-pass test
334 pub check_run_results: bool,
335 // For UI tests, allows compiler to generate arbitrary output to stdout
336 pub dont_check_compiler_stdout: bool,
337 // For UI tests, allows compiler to generate arbitrary output to stderr
338 pub dont_check_compiler_stderr: bool,
339 // Don't force a --crate-type=dylib flag on the command line
341 // Set this for example if you have an auxiliary test file that contains
342 // a proc-macro and needs `#![crate_type = "proc-macro"]`. This ensures
343 // that the aux file is compiled as a `proc-macro` and not as a `dylib`.
344 pub no_prefer_dynamic: bool,
345 // Run --pretty expanded when running pretty printing tests
346 pub pretty_expanded: bool,
347 // Which pretty mode are we testing with, default to 'normal'
348 pub pretty_mode: String,
349 // Only compare pretty output and don't try compiling
350 pub pretty_compare_only: bool,
351 // Patterns which must not appear in the output of a cfail test.
352 pub forbid_output: Vec<String>,
353 // Revisions to test for incremental compilation.
354 pub revisions: Vec<String>,
355 // Directory (if any) to use for incremental compilation. This is
356 // not set by end-users; rather it is set by the incremental
357 // testing harness and used when generating compilation
358 // arguments. (In particular, it propagates to the aux-builds.)
359 pub incremental_dir: Option<PathBuf>,
360 // How far should the test proceed while still passing.
361 pass_mode: Option<PassMode>,
362 // Ignore `--pass` overrides from the command line for this test.
364 // rustdoc will test the output of the `--test` option
365 pub check_test_line_numbers_match: bool,
366 // Do not pass `-Z ui-testing` to UI tests
367 pub disable_ui_testing_normalization: bool,
368 // customized normalization rules
369 pub normalize_stdout: Vec<(String, String)>,
370 pub normalize_stderr: Vec<(String, String)>,
371 pub failure_status: i32,
372 // Whether or not `rustfix` should apply the `CodeSuggestion`s of this test and compile the
373 // resulting Rust code.
374 pub run_rustfix: bool,
375 // If true, `rustfix` will only apply `MachineApplicable` suggestions.
376 pub rustfix_only_machine_applicable: bool,
377 pub assembly_output: Option<String>,
378 // If true, the test is expected to ICE
379 pub should_ice: bool,
383 pub fn new() -> Self {
385 error_patterns: vec![],
386 compile_flags: vec![],
390 extern_private: vec![],
393 unset_rustc_env: vec![],
396 build_aux_docs: false,
399 check_run_results: false,
400 dont_check_compiler_stdout: false,
401 dont_check_compiler_stderr: false,
402 no_prefer_dynamic: false,
403 pretty_expanded: false,
404 pretty_mode: "normal".to_string(),
405 pretty_compare_only: false,
406 forbid_output: vec![],
407 incremental_dir: None,
410 check_test_line_numbers_match: false,
411 disable_ui_testing_normalization: false,
412 normalize_stdout: vec![],
413 normalize_stderr: vec![],
416 rustfix_only_machine_applicable: false,
417 assembly_output: None,
422 pub fn from_aux_file(&self, testfile: &Path, cfg: Option<&str>, config: &Config) -> Self {
423 let mut props = TestProps::new();
425 // copy over select properties to the aux build:
426 props.incremental_dir = self.incremental_dir.clone();
427 props.load_from(testfile, cfg, config);
432 pub fn from_file(testfile: &Path, cfg: Option<&str>, config: &Config) -> Self {
433 let mut props = TestProps::new();
434 props.load_from(testfile, cfg, config);
438 /// Loads properties from `testfile` into `props`. If a property is
439 /// tied to a particular revision `foo` (indicated by writing
440 /// `//[foo]`), then the property is ignored unless `cfg` is
442 fn load_from(&mut self, testfile: &Path, cfg: Option<&str>, config: &Config) {
443 iter_header(testfile, cfg, &mut |ln| {
444 if let Some(ep) = config.parse_error_pattern(ln) {
445 self.error_patterns.push(ep);
448 if let Some(flags) = config.parse_compile_flags(ln) {
450 .extend(flags.split_whitespace().map(|s| s.to_owned()));
453 if let Some(edition) = config.parse_edition(ln) {
454 self.compile_flags.push(format!("--edition={}", edition));
457 if let Some(r) = config.parse_revisions(ln) {
458 self.revisions.extend(r);
461 if self.run_flags.is_none() {
462 self.run_flags = config.parse_run_flags(ln);
465 if self.pp_exact.is_none() {
466 self.pp_exact = config.parse_pp_exact(ln, testfile);
469 if !self.should_ice {
470 self.should_ice = config.parse_should_ice(ln);
473 if !self.build_aux_docs {
474 self.build_aux_docs = config.parse_build_aux_docs(ln);
477 if !self.force_host {
478 self.force_host = config.parse_force_host(ln);
481 if !self.check_stdout {
482 self.check_stdout = config.parse_check_stdout(ln);
485 if !self.check_run_results {
486 self.check_run_results = config.parse_check_run_results(ln);
489 if !self.dont_check_compiler_stdout {
490 self.dont_check_compiler_stdout = config.parse_dont_check_compiler_stdout(ln);
493 if !self.dont_check_compiler_stderr {
494 self.dont_check_compiler_stderr = config.parse_dont_check_compiler_stderr(ln);
497 if !self.no_prefer_dynamic {
498 self.no_prefer_dynamic = config.parse_no_prefer_dynamic(ln);
501 if !self.pretty_expanded {
502 self.pretty_expanded = config.parse_pretty_expanded(ln);
505 if let Some(m) = config.parse_pretty_mode(ln) {
506 self.pretty_mode = m;
509 if !self.pretty_compare_only {
510 self.pretty_compare_only = config.parse_pretty_compare_only(ln);
513 if let Some(ab) = config.parse_aux_build(ln) {
514 self.aux_builds.push(ab);
517 if let Some(ep) = config.parse_extern_private(ln) {
518 self.extern_private.push(ep);
521 if let Some(ee) = config.parse_env(ln, "exec-env") {
522 self.exec_env.push(ee);
525 if let Some(ee) = config.parse_env(ln, "rustc-env") {
526 self.rustc_env.push(ee);
529 if let Some(ev) = config.parse_name_value_directive(ln, "unset-rustc-env") {
530 self.unset_rustc_env.push(ev);
533 if let Some(cl) = config.parse_check_line(ln) {
534 self.check_lines.push(cl);
537 if let Some(of) = config.parse_forbid_output(ln) {
538 self.forbid_output.push(of);
541 if !self.check_test_line_numbers_match {
542 self.check_test_line_numbers_match = config.parse_check_test_line_numbers_match(ln);
545 self.update_pass_mode(ln, cfg, config);
547 if !self.ignore_pass {
548 self.ignore_pass = config.parse_ignore_pass(ln);
551 if !self.disable_ui_testing_normalization {
552 self.disable_ui_testing_normalization =
553 config.parse_disable_ui_testing_normalization(ln);
556 if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stdout") {
557 self.normalize_stdout.push(rule);
559 if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stderr") {
560 self.normalize_stderr.push(rule);
563 if let Some(code) = config.parse_failure_status(ln) {
564 self.failure_status = code;
567 if !self.run_rustfix {
568 self.run_rustfix = config.parse_run_rustfix(ln);
571 if !self.rustfix_only_machine_applicable {
572 self.rustfix_only_machine_applicable =
573 config.parse_rustfix_only_machine_applicable(ln);
576 if self.assembly_output.is_none() {
577 self.assembly_output = config.parse_assembly_output(ln);
581 if self.failure_status == -1 {
582 self.failure_status = match config.mode {
583 Mode::RunFail => 101,
588 self.failure_status = 101;
591 for key in &["RUST_TEST_NOCAPTURE", "RUST_TEST_THREADS"] {
592 if let Ok(val) = env::var(key) {
593 if self.exec_env.iter().find(|&&(ref x, _)| x == key).is_none() {
594 self.exec_env.push(((*key).to_owned(), val))
600 fn update_pass_mode(&mut self, ln: &str, revision: Option<&str>, config: &Config) {
601 let check_no_run = |s| {
602 if config.mode != Mode::Ui && config.mode != Mode::Incremental {
603 panic!("`{}` header is only supported in UI and incremental tests", s);
605 if config.mode == Mode::Incremental &&
606 !revision.map_or(false, |r| r.starts_with("cfail")) &&
607 !self.revisions.iter().all(|r| r.starts_with("cfail")) {
608 panic!("`{}` header is only supported in `cfail` incremental tests", s);
611 let pass_mode = if config.parse_name_directive(ln, "check-pass") {
612 check_no_run("check-pass");
613 Some(PassMode::Check)
614 } else if config.parse_name_directive(ln, "build-pass") {
615 check_no_run("build-pass");
616 Some(PassMode::Build)
617 } else if config.parse_name_directive(ln, "run-pass") {
618 if config.mode != Mode::Ui {
619 panic!("`run-pass` header is only supported in UI tests")
622 } else if config.parse_name_directive(ln, "run-fail") {
623 if config.mode != Mode::Ui {
624 panic!("`run-fail` header is only supported in UI tests")
626 Some(PassMode::RunFail)
630 match (self.pass_mode, pass_mode) {
631 (None, Some(_)) => self.pass_mode = pass_mode,
632 (Some(_), Some(_)) => panic!("multiple `*-pass` headers in a single test"),
637 pub fn pass_mode(&self, config: &Config) -> Option<PassMode> {
638 if !self.ignore_pass {
639 if let (mode @ Some(_), Some(_)) = (config.force_pass_mode, self.pass_mode) {
646 // does not consider CLI override for pass mode
647 pub fn local_pass_mode(&self) -> Option<PassMode> {
652 fn iter_header(testfile: &Path, cfg: Option<&str>, it: &mut dyn FnMut(&str)) {
653 if testfile.is_dir() {
657 let comment = if testfile.to_string_lossy().ends_with(".rs") {
663 // FIXME: would be nice to allow some whitespace between comment and brace :)
664 // It took me like 2 days to debug why compile-flags weren’t taken into account for my test :)
665 let comment_with_brace = comment.to_string() + "[";
667 let rdr = BufReader::new(File::open(testfile).unwrap());
668 for ln in rdr.lines() {
669 // Assume that any directives will be found before the first
670 // module or function. This doesn't seem to be an optimization
671 // with a warm page cache. Maybe with a cold one.
672 let ln = ln.unwrap();
674 if ln.starts_with("fn") || ln.starts_with("mod") {
676 } else if ln.starts_with(&comment_with_brace) {
677 // A comment like `//[foo]` is specific to revision `foo`
678 if let Some(close_brace) = ln.find(']') {
679 let open_brace = ln.find('[').unwrap();
680 let lncfg = &ln[open_brace + 1 .. close_brace];
681 let matches = match cfg {
682 Some(s) => s == &lncfg[..],
686 it(ln[(close_brace + 1)..].trim_start());
689 panic!("malformed condition directive: expected `{}foo]`, found `{}`",
690 comment_with_brace, ln)
692 } else if ln.starts_with(comment) {
693 it(ln[comment.len() ..].trim_start());
700 fn parse_should_ice(&self, line: &str) -> bool {
701 self.parse_name_directive(line, "should-ice")
703 fn parse_error_pattern(&self, line: &str) -> Option<String> {
704 self.parse_name_value_directive(line, "error-pattern")
707 fn parse_forbid_output(&self, line: &str) -> Option<String> {
708 self.parse_name_value_directive(line, "forbid-output")
711 fn parse_aux_build(&self, line: &str) -> Option<String> {
712 self.parse_name_value_directive(line, "aux-build")
713 .map(|r| r.trim().to_string())
716 fn parse_extern_private(&self, line: &str) -> Option<String> {
717 self.parse_name_value_directive(line, "extern-private")
720 fn parse_compile_flags(&self, line: &str) -> Option<String> {
721 self.parse_name_value_directive(line, "compile-flags")
724 fn parse_revisions(&self, line: &str) -> Option<Vec<String>> {
725 self.parse_name_value_directive(line, "revisions")
726 .map(|r| r.split_whitespace().map(|t| t.to_string()).collect())
729 fn parse_run_flags(&self, line: &str) -> Option<String> {
730 self.parse_name_value_directive(line, "run-flags")
733 fn parse_check_line(&self, line: &str) -> Option<String> {
734 self.parse_name_value_directive(line, "check")
737 fn parse_force_host(&self, line: &str) -> bool {
738 self.parse_name_directive(line, "force-host")
741 fn parse_build_aux_docs(&self, line: &str) -> bool {
742 self.parse_name_directive(line, "build-aux-docs")
745 fn parse_check_stdout(&self, line: &str) -> bool {
746 self.parse_name_directive(line, "check-stdout")
749 fn parse_check_run_results(&self, line: &str) -> bool {
750 self.parse_name_directive(line, "check-run-results")
753 fn parse_dont_check_compiler_stdout(&self, line: &str) -> bool {
754 self.parse_name_directive(line, "dont-check-compiler-stdout")
757 fn parse_dont_check_compiler_stderr(&self, line: &str) -> bool {
758 self.parse_name_directive(line, "dont-check-compiler-stderr")
761 fn parse_no_prefer_dynamic(&self, line: &str) -> bool {
762 self.parse_name_directive(line, "no-prefer-dynamic")
765 fn parse_pretty_expanded(&self, line: &str) -> bool {
766 self.parse_name_directive(line, "pretty-expanded")
769 fn parse_pretty_mode(&self, line: &str) -> Option<String> {
770 self.parse_name_value_directive(line, "pretty-mode")
773 fn parse_pretty_compare_only(&self, line: &str) -> bool {
774 self.parse_name_directive(line, "pretty-compare-only")
777 fn parse_failure_status(&self, line: &str) -> Option<i32> {
778 match self.parse_name_value_directive(line, "failure-status") {
779 Some(code) => code.trim().parse::<i32>().ok(),
784 fn parse_disable_ui_testing_normalization(&self, line: &str) -> bool {
785 self.parse_name_directive(line, "disable-ui-testing-normalization")
788 fn parse_check_test_line_numbers_match(&self, line: &str) -> bool {
789 self.parse_name_directive(line, "check-test-line-numbers-match")
792 fn parse_ignore_pass(&self, line: &str) -> bool {
793 self.parse_name_directive(line, "ignore-pass")
796 fn parse_assembly_output(&self, line: &str) -> Option<String> {
797 self.parse_name_value_directive(line, "assembly-output")
798 .map(|r| r.trim().to_string())
801 fn parse_env(&self, line: &str, name: &str) -> Option<(String, String)> {
802 self.parse_name_value_directive(line, name).map(|nv| {
803 // nv is either FOO or FOO=BAR
804 let mut strs: Vec<String> = nv.splitn(2, '=').map(str::to_owned).collect();
807 1 => (strs.pop().unwrap(), String::new()),
809 let end = strs.pop().unwrap();
810 (strs.pop().unwrap(), end)
812 n => panic!("Expected 1 or 2 strings, not {}", n),
817 fn parse_pp_exact(&self, line: &str, testfile: &Path) -> Option<PathBuf> {
818 if let Some(s) = self.parse_name_value_directive(line, "pp-exact") {
819 Some(PathBuf::from(&s))
820 } else if self.parse_name_directive(line, "pp-exact") {
821 testfile.file_name().map(PathBuf::from)
827 fn parse_custom_normalization(&self, mut line: &str, prefix: &str) -> Option<(String, String)> {
828 if self.parse_cfg_name_directive(line, prefix) == ParsedNameDirective::Match {
829 let from = parse_normalization_string(&mut line)?;
830 let to = parse_normalization_string(&mut line)?;
837 fn parse_needs_matching_clang(&self, line: &str) -> bool {
838 self.parse_name_directive(line, "needs-matching-clang")
841 fn parse_needs_profiler_support(&self, line: &str) -> bool {
842 self.parse_name_directive(line, "needs-profiler-support")
845 fn parse_needs_sanitizer_support(&self, line: &str) -> bool {
846 self.parse_name_directive(line, "needs-sanitizer-support")
849 /// Parses a name-value directive which contains config-specific information, e.g., `ignore-x86`
850 /// or `normalize-stderr-32bit`.
851 fn parse_cfg_name_directive(&self, line: &str, prefix: &str) -> ParsedNameDirective {
852 if line.starts_with(prefix) && line.as_bytes().get(prefix.len()) == Some(&b'-') {
853 let name = line[prefix.len() + 1..]
854 .split(&[':', ' '][..])
859 util::matches_os(&self.target, name) || // target
860 util::matches_env(&self.target, name) || // env
861 name == util::get_arch(&self.target) || // architecture
862 name == util::get_pointer_width(&self.target) || // pointer width
863 name == self.stage_id.split('-').next().unwrap() || // stage
864 (self.target != self.host && name == "cross-compile") ||
865 match self.compare_mode {
866 Some(CompareMode::Nll) => name == "compare-mode-nll",
867 Some(CompareMode::Polonius) => name == "compare-mode-polonius",
870 (cfg!(debug_assertions) && name == "debug") {
871 ParsedNameDirective::Match
874 common::DebugInfoGdbLldb => {
876 ParsedNameDirective::MatchGdb
877 } else if name == "lldb" {
878 ParsedNameDirective::MatchLldb
880 ParsedNameDirective::NoMatch
883 common::DebugInfoCdb => if name == "cdb" {
884 ParsedNameDirective::Match
886 ParsedNameDirective::NoMatch
888 common::DebugInfoGdb => if name == "gdb" {
889 ParsedNameDirective::Match
891 ParsedNameDirective::NoMatch
893 common::DebugInfoLldb => if name == "lldb" {
894 ParsedNameDirective::Match
896 ParsedNameDirective::NoMatch
898 common::Pretty => if name == "pretty" {
899 ParsedNameDirective::Match
901 ParsedNameDirective::NoMatch
903 _ => ParsedNameDirective::NoMatch,
907 ParsedNameDirective::NoMatch
911 fn has_cfg_prefix(&self, line: &str, prefix: &str) -> bool {
912 // returns whether this line contains this prefix or not. For prefix
913 // "ignore", returns true if line says "ignore-x86_64", "ignore-arch",
914 // "ignore-android" etc.
915 line.starts_with(prefix) && line.as_bytes().get(prefix.len()) == Some(&b'-')
918 fn parse_name_directive(&self, line: &str, directive: &str) -> bool {
919 // Ensure the directive is a whole word. Do not match "ignore-x86" when
920 // the line says "ignore-x86_64".
921 line.starts_with(directive) && match line.as_bytes().get(directive.len()) {
922 None | Some(&b' ') | Some(&b':') => true,
927 pub fn parse_name_value_directive(&self, line: &str, directive: &str) -> Option<String> {
928 let colon = directive.len();
929 if line.starts_with(directive) && line.as_bytes().get(colon) == Some(&b':') {
930 let value = line[(colon + 1)..].to_owned();
931 debug!("{}: {}", directive, value);
932 Some(expand_variables(value, self))
938 pub fn find_rust_src_root(&self) -> Option<PathBuf> {
939 let mut path = self.src_base.clone();
940 let path_postfix = Path::new("src/etc/lldb_batchmode.py");
943 if path.join(&path_postfix).is_file() {
951 fn parse_run_rustfix(&self, line: &str) -> bool {
952 self.parse_name_directive(line, "run-rustfix")
955 fn parse_rustfix_only_machine_applicable(&self, line: &str) -> bool {
956 self.parse_name_directive(line, "rustfix-only-machine-applicable")
959 fn parse_edition(&self, line: &str) -> Option<String> {
960 self.parse_name_value_directive(line, "edition")
964 pub fn lldb_version_to_int(version_string: &str) -> isize {
965 let error_string = format!(
966 "Encountered LLDB version string with unexpected format: {}",
969 version_string.parse().expect(&error_string)
972 fn expand_variables(mut value: String, config: &Config) -> String {
973 const CWD: &'static str = "{{cwd}}";
974 const SRC_BASE: &'static str = "{{src-base}}";
975 const BUILD_BASE: &'static str = "{{build-base}}";
977 if value.contains(CWD) {
978 let cwd = env::current_dir().unwrap();
979 value = value.replace(CWD, &cwd.to_string_lossy());
982 if value.contains(SRC_BASE) {
983 value = value.replace(SRC_BASE, &config.src_base.to_string_lossy());
986 if value.contains(BUILD_BASE) {
987 value = value.replace(BUILD_BASE, &config.build_base.to_string_lossy());
993 /// Finds the next quoted string `"..."` in `line`, and extract the content from it. Move the `line`
994 /// variable after the end of the quoted string.
999 /// let mut s = "normalize-stderr-32bit: \"something (32 bits)\" -> \"something ($WORD bits)\".";
1000 /// let first = parse_normalization_string(&mut s);
1001 /// assert_eq!(first, Some("something (32 bits)".to_owned()));
1002 /// assert_eq!(s, " -> \"something ($WORD bits)\".");
1004 fn parse_normalization_string(line: &mut &str) -> Option<String> {
1005 // FIXME support escapes in strings.
1006 let begin = line.find('"')? + 1;
1007 let end = line[begin..].find('"')? + begin;
1008 let result = line[begin..end].to_owned();
1009 *line = &line[end + 1..];