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Commit | Line | Data |
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a7813a04 XL |
1 | use std::env; |
2 | use std::fs::File; | |
a7813a04 | 3 | use std::io::prelude::*; |
94b46f34 | 4 | use std::io::BufReader; |
a7813a04 XL |
5 | use std::path::{Path, PathBuf}; |
6 | ||
48663c56 XL |
7 | use log::*; |
8 | ||
dc9dc135 | 9 | use crate::common::{self, CompareMode, Config, Mode, PassMode}; |
9fa01778 | 10 | use crate::util; |
9fa01778 | 11 | use crate::extract_gdb_version; |
c30ab7b3 | 12 | |
416331ca XL |
13 | #[cfg(test)] |
14 | mod tests; | |
15 | ||
0bf4aa26 XL |
16 | /// Whether to ignore the test. |
17 | #[derive(Clone, Copy, PartialEq, Debug)] | |
18 | pub enum Ignore { | |
9fa01778 | 19 | /// Runs it. |
0bf4aa26 XL |
20 | Run, |
21 | /// Ignore it totally. | |
22 | Ignore, | |
23 | /// Ignore only the gdb test, but run the lldb test. | |
24 | IgnoreGdb, | |
25 | /// Ignore only the lldb test, but run the gdb test. | |
26 | IgnoreLldb, | |
27 | } | |
28 | ||
29 | impl Ignore { | |
30 | pub fn can_run_gdb(&self) -> bool { | |
31 | *self == Ignore::Run || *self == Ignore::IgnoreLldb | |
32 | } | |
33 | ||
34 | pub fn can_run_lldb(&self) -> bool { | |
35 | *self == Ignore::Run || *self == Ignore::IgnoreGdb | |
36 | } | |
37 | ||
38 | pub fn no_gdb(&self) -> Ignore { | |
39 | match *self { | |
40 | Ignore::Run => Ignore::IgnoreGdb, | |
41 | Ignore::IgnoreGdb => Ignore::IgnoreGdb, | |
42 | _ => Ignore::Ignore, | |
43 | } | |
44 | } | |
45 | ||
46 | pub fn no_lldb(&self) -> Ignore { | |
47 | match *self { | |
48 | Ignore::Run => Ignore::IgnoreLldb, | |
49 | Ignore::IgnoreLldb => Ignore::IgnoreLldb, | |
50 | _ => Ignore::Ignore, | |
51 | } | |
52 | } | |
53 | } | |
54 | ||
55 | /// The result of parse_cfg_name_directive. | |
56 | #[derive(Clone, Copy, PartialEq, Debug)] | |
57 | enum ParsedNameDirective { | |
58 | /// No match. | |
59 | NoMatch, | |
60 | /// Match. | |
61 | Match, | |
dc9dc135 | 62 | /// Mode was DebugInfoGdbLldb and this matched gdb. |
0bf4aa26 | 63 | MatchGdb, |
dc9dc135 | 64 | /// Mode was DebugInfoGdbLldb and this matched lldb. |
0bf4aa26 XL |
65 | MatchLldb, |
66 | } | |
67 | ||
a7813a04 XL |
68 | /// Properties which must be known very early, before actually running |
69 | /// the test. | |
70 | pub struct EarlyProps { | |
0bf4aa26 | 71 | pub ignore: Ignore, |
a7813a04 | 72 | pub should_fail: bool, |
8bb4bdeb | 73 | pub aux: Vec<String>, |
ff7c6d11 | 74 | pub revisions: Vec<String>, |
a7813a04 XL |
75 | } |
76 | ||
77 | impl EarlyProps { | |
78 | pub fn from_file(config: &Config, testfile: &Path) -> Self { | |
79 | let mut props = EarlyProps { | |
0bf4aa26 | 80 | ignore: Ignore::Run, |
a7813a04 | 81 | should_fail: false, |
8bb4bdeb | 82 | aux: Vec::new(), |
ff7c6d11 | 83 | revisions: vec![], |
a7813a04 XL |
84 | }; |
85 | ||
dc9dc135 | 86 | if config.mode == common::DebugInfoGdbLldb { |
0bf4aa26 XL |
87 | if config.lldb_python_dir.is_none() { |
88 | props.ignore = props.ignore.no_lldb(); | |
89 | } | |
90 | if config.gdb_version.is_none() { | |
91 | props.ignore = props.ignore.no_gdb(); | |
92 | } | |
dc9dc135 XL |
93 | } else if config.mode == common::DebugInfoCdb { |
94 | if config.cdb.is_none() { | |
95 | props.ignore = Ignore::Ignore; | |
96 | } | |
0bf4aa26 XL |
97 | } |
98 | ||
48663c56 XL |
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(); | |
101 | ||
94b46f34 | 102 | iter_header(testfile, None, &mut |ln| { |
2c00a5a8 XL |
103 | // we should check if any only-<platform> exists and if it exists |
104 | // and does not matches the current platform, skip the test | |
0bf4aa26 XL |
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(), | |
111 | }; | |
112 | ||
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(), | |
119 | }; | |
120 | } | |
121 | ||
122 | if ignore_llvm(config, ln) { | |
123 | props.ignore = Ignore::Ignore; | |
124 | } | |
9fa01778 XL |
125 | |
126 | if config.run_clang_based_tests_with.is_none() && | |
127 | config.parse_needs_matching_clang(ln) { | |
128 | props.ignore = Ignore::Ignore; | |
129 | } | |
48663c56 XL |
130 | |
131 | if !rustc_has_profiler_support && | |
132 | config.parse_needs_profiler_support(ln) { | |
133 | props.ignore = Ignore::Ignore; | |
134 | } | |
135 | ||
136 | if !rustc_has_sanitizer_support && | |
137 | config.parse_needs_sanitizer_support(ln) { | |
138 | props.ignore = Ignore::Ignore; | |
139 | } | |
e1599b0c XL |
140 | |
141 | if config.target == "wasm32-unknown-unknown" && config.parse_check_run_results(ln) { | |
142 | props.ignore = Ignore::Ignore; | |
143 | } | |
0bf4aa26 XL |
144 | } |
145 | ||
dc9dc135 | 146 | if (config.mode == common::DebugInfoGdb || config.mode == common::DebugInfoGdbLldb) && |
0bf4aa26 XL |
147 | props.ignore.can_run_gdb() && ignore_gdb(config, ln) { |
148 | props.ignore = props.ignore.no_gdb(); | |
149 | } | |
150 | ||
dc9dc135 | 151 | if (config.mode == common::DebugInfoLldb || config.mode == common::DebugInfoGdbLldb) && |
0bf4aa26 XL |
152 | props.ignore.can_run_lldb() && ignore_lldb(config, ln) { |
153 | props.ignore = props.ignore.no_lldb(); | |
154 | } | |
a7813a04 | 155 | |
7cac9316 | 156 | if let Some(s) = config.parse_aux_build(ln) { |
8bb4bdeb XL |
157 | props.aux.push(s); |
158 | } | |
159 | ||
ff7c6d11 XL |
160 | if let Some(r) = config.parse_revisions(ln) { |
161 | props.revisions.extend(r); | |
162 | } | |
163 | ||
7cac9316 | 164 | props.should_fail = props.should_fail || config.parse_name_directive(ln, "should-fail"); |
a7813a04 XL |
165 | }); |
166 | ||
167 | return props; | |
168 | ||
a7813a04 | 169 | fn ignore_gdb(config: &Config, line: &str) -> bool { |
c30ab7b3 | 170 | if let Some(actual_version) = config.gdb_version { |
7cac9316 | 171 | if line.starts_with("min-gdb-version") { |
32a655c1 SL |
172 | let (start_ver, end_ver) = extract_gdb_version_range(line); |
173 | ||
174 | if start_ver != end_ver { | |
175 | panic!("Expected single GDB version") | |
176 | } | |
a7813a04 XL |
177 | // Ignore if actual version is smaller the minimum required |
178 | // version | |
32a655c1 | 179 | actual_version < start_ver |
7cac9316 | 180 | } else if line.starts_with("ignore-gdb-version") { |
32a655c1 SL |
181 | let (min_version, max_version) = extract_gdb_version_range(line); |
182 | ||
183 | if max_version < min_version { | |
184 | panic!("Malformed GDB version range: max < min") | |
185 | } | |
186 | ||
187 | actual_version >= min_version && actual_version <= max_version | |
a7813a04 XL |
188 | } else { |
189 | false | |
190 | } | |
191 | } else { | |
192 | false | |
193 | } | |
194 | } | |
195 | ||
32a655c1 SL |
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"; | |
203 | ||
7cac9316 XL |
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>>>(); | |
32a655c1 SL |
210 | |
211 | match range_components.len() { | |
212 | 1 => { | |
7cac9316 | 213 | let v = range_components[0].unwrap(); |
32a655c1 SL |
214 | (v, v) |
215 | } | |
216 | 2 => { | |
7cac9316 XL |
217 | let v_min = range_components[0].unwrap(); |
218 | let v_max = range_components[1].expect(ERROR_MESSAGE); | |
32a655c1 SL |
219 | (v_min, v_max) |
220 | } | |
221 | _ => panic!(ERROR_MESSAGE), | |
222 | } | |
223 | } | |
224 | ||
a7813a04 | 225 | fn ignore_lldb(config: &Config, line: &str) -> bool { |
a7813a04 | 226 | if let Some(ref actual_version) = config.lldb_version { |
7cac9316 | 227 | if line.starts_with("min-lldb-version") { |
0731742a | 228 | let min_version = line.trim_end() |
7cac9316 XL |
229 | .rsplit(' ') |
230 | .next() | |
5bcae85e | 231 | .expect("Malformed lldb version directive"); |
a7813a04 XL |
232 | // Ignore if actual version is smaller the minimum required |
233 | // version | |
5bcae85e | 234 | lldb_version_to_int(actual_version) < lldb_version_to_int(min_version) |
0bf4aa26 XL |
235 | } else if line.starts_with("rust-lldb") && !config.lldb_native_rust { |
236 | true | |
a7813a04 XL |
237 | } else { |
238 | false | |
239 | } | |
240 | } else { | |
241 | false | |
242 | } | |
243 | } | |
9e0c209e SL |
244 | |
245 | fn ignore_llvm(config: &Config, line: &str) -> bool { | |
041b39d2 | 246 | if config.system_llvm && line.starts_with("no-system-llvm") { |
94b46f34 | 247 | return true; |
041b39d2 | 248 | } |
9e0c209e | 249 | if let Some(ref actual_version) = config.llvm_version { |
7cac9316 | 250 | if line.starts_with("min-llvm-version") { |
0731742a | 251 | let min_version = line.trim_end() |
7cac9316 XL |
252 | .rsplit(' ') |
253 | .next() | |
9e0c209e SL |
254 | .expect("Malformed llvm version directive"); |
255 | // Ignore if actual version is smaller the minimum required | |
256 | // version | |
257 | &actual_version[..] < min_version | |
abe05a73 | 258 | } else if line.starts_with("min-system-llvm-version") { |
0731742a | 259 | let min_version = line.trim_end() |
abe05a73 XL |
260 | .rsplit(' ') |
261 | .next() | |
262 | .expect("Malformed llvm version directive"); | |
263 | // Ignore if using system LLVM and actual version | |
264 | // is smaller the minimum required version | |
2c00a5a8 | 265 | config.system_llvm && &actual_version[..] < min_version |
a1dfa0c6 XL |
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. | |
270 | .map(|s| s.trim()) | |
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() { | |
275 | 1 => { | |
276 | &actual_version[..] == range_components[0] | |
277 | } | |
278 | 2 => { | |
279 | let v_min = range_components[0]; | |
280 | let v_max = range_components[1]; | |
281 | if v_max < v_min { | |
282 | panic!("Malformed LLVM version range: max < min") | |
283 | } | |
284 | // Ignore if version lies inside of range. | |
285 | &actual_version[..] >= v_min && &actual_version[..] <= v_max | |
286 | } | |
287 | _ => panic!("Malformed LLVM version directive"), | |
288 | } | |
9e0c209e SL |
289 | } else { |
290 | false | |
291 | } | |
292 | } else { | |
293 | false | |
294 | } | |
295 | } | |
a7813a04 XL |
296 | } |
297 | } | |
298 | ||
299 | #[derive(Clone, Debug)] | |
300 | pub struct TestProps { | |
301 | // Lines that should be expected, in order, on standard out | |
5bcae85e | 302 | pub error_patterns: Vec<String>, |
a7813a04 XL |
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 | |
308 | // pretty-printed | |
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) | |
5bcae85e | 313 | pub aux_builds: Vec<String>, |
48663c56 XL |
314 | // A list of crates to pass '--extern-private 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>, | |
a7813a04 | 318 | // Environment settings to use for compiling |
5bcae85e | 319 | pub rustc_env: Vec<(String, String)>, |
48663c56 XL |
320 | // Environment variables to unset prior to compiling. |
321 | // Variables are unset before applying 'rustc_env'. | |
322 | pub unset_rustc_env: Vec<String>, | |
a7813a04 | 323 | // Environment settings to use during execution |
5bcae85e | 324 | pub exec_env: Vec<(String, String)>, |
a7813a04 | 325 | // Lines to check if they appear in the expected debugger output |
5bcae85e | 326 | pub check_lines: Vec<String>, |
a7813a04 XL |
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, | |
e1599b0c XL |
333 | // Check stdout & stderr for output of run-pass test |
334 | pub check_run_results: bool, | |
0bf4aa26 XL |
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, | |
a7813a04 | 339 | // Don't force a --crate-type=dylib flag on the command line |
48663c56 XL |
340 | // |
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`. | |
a7813a04 XL |
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>, | |
dc9dc135 XL |
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. | |
363 | ignore_pass: bool, | |
8bb4bdeb XL |
364 | // rustdoc will test the output of the `--test` option |
365 | pub check_test_line_numbers_match: bool, | |
0531ce1d XL |
366 | // Do not pass `-Z ui-testing` to UI tests |
367 | pub disable_ui_testing_normalization: bool, | |
041b39d2 XL |
368 | // customized normalization rules |
369 | pub normalize_stdout: Vec<(String, String)>, | |
370 | pub normalize_stderr: Vec<(String, String)>, | |
0531ce1d | 371 | pub failure_status: i32, |
532ac7d7 XL |
372 | // Whether or not `rustfix` should apply the `CodeSuggestion`s of this test and compile the |
373 | // resulting Rust code. | |
83c7162d | 374 | pub run_rustfix: bool, |
532ac7d7 | 375 | // If true, `rustfix` will only apply `MachineApplicable` suggestions. |
b7449926 | 376 | pub rustfix_only_machine_applicable: bool, |
532ac7d7 | 377 | pub assembly_output: Option<String>, |
a7813a04 XL |
378 | } |
379 | ||
380 | impl TestProps { | |
381 | pub fn new() -> Self { | |
a7813a04 | 382 | TestProps { |
9e0c209e | 383 | error_patterns: vec![], |
a7813a04 | 384 | compile_flags: vec![], |
9e0c209e SL |
385 | run_flags: None, |
386 | pp_exact: None, | |
387 | aux_builds: vec![], | |
48663c56 | 388 | extern_private: vec![], |
a7813a04 XL |
389 | revisions: vec![], |
390 | rustc_env: vec![], | |
48663c56 | 391 | unset_rustc_env: vec![], |
9e0c209e SL |
392 | exec_env: vec![], |
393 | check_lines: vec![], | |
394 | build_aux_docs: false, | |
395 | force_host: false, | |
396 | check_stdout: false, | |
e1599b0c | 397 | check_run_results: false, |
0bf4aa26 XL |
398 | dont_check_compiler_stdout: false, |
399 | dont_check_compiler_stderr: false, | |
9e0c209e SL |
400 | no_prefer_dynamic: false, |
401 | pretty_expanded: false, | |
041b39d2 | 402 | pretty_mode: "normal".to_string(), |
9e0c209e SL |
403 | pretty_compare_only: false, |
404 | forbid_output: vec![], | |
a7813a04 | 405 | incremental_dir: None, |
dc9dc135 XL |
406 | pass_mode: None, |
407 | ignore_pass: false, | |
8bb4bdeb | 408 | check_test_line_numbers_match: false, |
0531ce1d | 409 | disable_ui_testing_normalization: false, |
041b39d2 XL |
410 | normalize_stdout: vec![], |
411 | normalize_stderr: vec![], | |
8faf50e0 | 412 | failure_status: -1, |
83c7162d | 413 | run_rustfix: false, |
b7449926 | 414 | rustfix_only_machine_applicable: false, |
532ac7d7 | 415 | assembly_output: None, |
a7813a04 XL |
416 | } |
417 | } | |
418 | ||
94b46f34 | 419 | pub fn from_aux_file(&self, testfile: &Path, cfg: Option<&str>, config: &Config) -> Self { |
a7813a04 XL |
420 | let mut props = TestProps::new(); |
421 | ||
422 | // copy over select properties to the aux build: | |
423 | props.incremental_dir = self.incremental_dir.clone(); | |
7cac9316 | 424 | props.load_from(testfile, cfg, config); |
a7813a04 XL |
425 | |
426 | props | |
427 | } | |
428 | ||
abe05a73 | 429 | pub fn from_file(testfile: &Path, cfg: Option<&str>, config: &Config) -> Self { |
a7813a04 | 430 | let mut props = TestProps::new(); |
abe05a73 | 431 | props.load_from(testfile, cfg, config); |
a7813a04 XL |
432 | props |
433 | } | |
434 | ||
9fa01778 | 435 | /// Loads properties from `testfile` into `props`. If a property is |
a7813a04 XL |
436 | /// tied to a particular revision `foo` (indicated by writing |
437 | /// `//[foo]`), then the property is ignored unless `cfg` is | |
438 | /// `Some("foo")`. | |
94b46f34 XL |
439 | fn load_from(&mut self, testfile: &Path, cfg: Option<&str>, config: &Config) { |
440 | iter_header(testfile, cfg, &mut |ln| { | |
7cac9316 | 441 | if let Some(ep) = config.parse_error_pattern(ln) { |
a7813a04 XL |
442 | self.error_patterns.push(ep); |
443 | } | |
444 | ||
7cac9316 | 445 | if let Some(flags) = config.parse_compile_flags(ln) { |
94b46f34 XL |
446 | self.compile_flags |
447 | .extend(flags.split_whitespace().map(|s| s.to_owned())); | |
a7813a04 XL |
448 | } |
449 | ||
8faf50e0 XL |
450 | if let Some(edition) = config.parse_edition(ln) { |
451 | self.compile_flags.push(format!("--edition={}", edition)); | |
452 | } | |
453 | ||
7cac9316 | 454 | if let Some(r) = config.parse_revisions(ln) { |
a7813a04 XL |
455 | self.revisions.extend(r); |
456 | } | |
457 | ||
458 | if self.run_flags.is_none() { | |
7cac9316 | 459 | self.run_flags = config.parse_run_flags(ln); |
a7813a04 XL |
460 | } |
461 | ||
462 | if self.pp_exact.is_none() { | |
7cac9316 | 463 | self.pp_exact = config.parse_pp_exact(ln, testfile); |
a7813a04 XL |
464 | } |
465 | ||
466 | if !self.build_aux_docs { | |
7cac9316 | 467 | self.build_aux_docs = config.parse_build_aux_docs(ln); |
a7813a04 XL |
468 | } |
469 | ||
470 | if !self.force_host { | |
7cac9316 | 471 | self.force_host = config.parse_force_host(ln); |
a7813a04 XL |
472 | } |
473 | ||
474 | if !self.check_stdout { | |
7cac9316 | 475 | self.check_stdout = config.parse_check_stdout(ln); |
a7813a04 XL |
476 | } |
477 | ||
e1599b0c XL |
478 | if !self.check_run_results { |
479 | self.check_run_results = config.parse_check_run_results(ln); | |
480 | } | |
481 | ||
0bf4aa26 XL |
482 | if !self.dont_check_compiler_stdout { |
483 | self.dont_check_compiler_stdout = config.parse_dont_check_compiler_stdout(ln); | |
484 | } | |
485 | ||
486 | if !self.dont_check_compiler_stderr { | |
487 | self.dont_check_compiler_stderr = config.parse_dont_check_compiler_stderr(ln); | |
488 | } | |
489 | ||
a7813a04 | 490 | if !self.no_prefer_dynamic { |
7cac9316 | 491 | self.no_prefer_dynamic = config.parse_no_prefer_dynamic(ln); |
a7813a04 XL |
492 | } |
493 | ||
494 | if !self.pretty_expanded { | |
7cac9316 | 495 | self.pretty_expanded = config.parse_pretty_expanded(ln); |
a7813a04 XL |
496 | } |
497 | ||
7cac9316 | 498 | if let Some(m) = config.parse_pretty_mode(ln) { |
a7813a04 XL |
499 | self.pretty_mode = m; |
500 | } | |
501 | ||
502 | if !self.pretty_compare_only { | |
7cac9316 | 503 | self.pretty_compare_only = config.parse_pretty_compare_only(ln); |
a7813a04 XL |
504 | } |
505 | ||
7cac9316 | 506 | if let Some(ab) = config.parse_aux_build(ln) { |
a7813a04 XL |
507 | self.aux_builds.push(ab); |
508 | } | |
509 | ||
48663c56 XL |
510 | if let Some(ep) = config.parse_extern_private(ln) { |
511 | self.extern_private.push(ep); | |
512 | } | |
513 | ||
7cac9316 | 514 | if let Some(ee) = config.parse_env(ln, "exec-env") { |
a7813a04 XL |
515 | self.exec_env.push(ee); |
516 | } | |
517 | ||
7cac9316 | 518 | if let Some(ee) = config.parse_env(ln, "rustc-env") { |
a7813a04 XL |
519 | self.rustc_env.push(ee); |
520 | } | |
521 | ||
48663c56 XL |
522 | if let Some(ev) = config.parse_name_value_directive(ln, "unset-rustc-env") { |
523 | self.unset_rustc_env.push(ev); | |
524 | } | |
525 | ||
7cac9316 | 526 | if let Some(cl) = config.parse_check_line(ln) { |
a7813a04 XL |
527 | self.check_lines.push(cl); |
528 | } | |
529 | ||
7cac9316 | 530 | if let Some(of) = config.parse_forbid_output(ln) { |
a7813a04 XL |
531 | self.forbid_output.push(of); |
532 | } | |
9e0c209e | 533 | |
8bb4bdeb | 534 | if !self.check_test_line_numbers_match { |
7cac9316 XL |
535 | self.check_test_line_numbers_match = config.parse_check_test_line_numbers_match(ln); |
536 | } | |
537 | ||
dc9dc135 | 538 | self.update_pass_mode(ln, cfg, config); |
ff7c6d11 | 539 | |
dc9dc135 XL |
540 | if !self.ignore_pass { |
541 | self.ignore_pass = config.parse_ignore_pass(ln); | |
8faf50e0 | 542 | } |
83c7162d | 543 | |
0531ce1d XL |
544 | if !self.disable_ui_testing_normalization { |
545 | self.disable_ui_testing_normalization = | |
546 | config.parse_disable_ui_testing_normalization(ln); | |
547 | } | |
548 | ||
041b39d2 XL |
549 | if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stdout") { |
550 | self.normalize_stdout.push(rule); | |
551 | } | |
552 | if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stderr") { | |
553 | self.normalize_stderr.push(rule); | |
554 | } | |
0531ce1d XL |
555 | |
556 | if let Some(code) = config.parse_failure_status(ln) { | |
557 | self.failure_status = code; | |
558 | } | |
83c7162d XL |
559 | |
560 | if !self.run_rustfix { | |
561 | self.run_rustfix = config.parse_run_rustfix(ln); | |
562 | } | |
b7449926 XL |
563 | |
564 | if !self.rustfix_only_machine_applicable { | |
565 | self.rustfix_only_machine_applicable = | |
566 | config.parse_rustfix_only_machine_applicable(ln); | |
567 | } | |
532ac7d7 XL |
568 | |
569 | if self.assembly_output.is_none() { | |
570 | self.assembly_output = config.parse_assembly_output(ln); | |
571 | } | |
a7813a04 XL |
572 | }); |
573 | ||
74d20737 XL |
574 | if self.failure_status == -1 { |
575 | self.failure_status = match config.mode { | |
576 | Mode::RunFail => 101, | |
577 | _ => 1, | |
578 | }; | |
579 | } | |
580 | ||
041b39d2 XL |
581 | for key in &["RUST_TEST_NOCAPTURE", "RUST_TEST_THREADS"] { |
582 | if let Ok(val) = env::var(key) { | |
583 | if self.exec_env.iter().find(|&&(ref x, _)| x == key).is_none() { | |
584 | self.exec_env.push(((*key).to_owned(), val)) | |
5bcae85e | 585 | } |
a7813a04 XL |
586 | } |
587 | } | |
588 | } | |
dc9dc135 XL |
589 | |
590 | fn update_pass_mode(&mut self, ln: &str, revision: Option<&str>, config: &Config) { | |
591 | let check_no_run = |s| { | |
592 | if config.mode != Mode::Ui && config.mode != Mode::Incremental { | |
593 | panic!("`{}` header is only supported in UI and incremental tests", s); | |
594 | } | |
595 | if config.mode == Mode::Incremental && | |
596 | !revision.map_or(false, |r| r.starts_with("cfail")) && | |
597 | !self.revisions.iter().all(|r| r.starts_with("cfail")) { | |
598 | panic!("`{}` header is only supported in `cfail` incremental tests", s); | |
599 | } | |
600 | }; | |
601 | let pass_mode = if config.parse_name_directive(ln, "check-pass") { | |
602 | check_no_run("check-pass"); | |
603 | Some(PassMode::Check) | |
604 | } else if config.parse_name_directive(ln, "build-pass") { | |
605 | check_no_run("build-pass"); | |
606 | Some(PassMode::Build) | |
dc9dc135 | 607 | } else if config.parse_name_directive(ln, "run-pass") { |
416331ca | 608 | if config.mode != Mode::Ui { |
dc9dc135 XL |
609 | panic!("`run-pass` header is only supported in UI tests") |
610 | } | |
611 | Some(PassMode::Run) | |
e74abb32 XL |
612 | } else if config.parse_name_directive(ln, "run-fail") { |
613 | if config.mode != Mode::Ui { | |
614 | panic!("`run-fail` header is only supported in UI tests") | |
615 | } | |
616 | Some(PassMode::RunFail) | |
dc9dc135 XL |
617 | } else { |
618 | None | |
619 | }; | |
620 | match (self.pass_mode, pass_mode) { | |
621 | (None, Some(_)) => self.pass_mode = pass_mode, | |
622 | (Some(_), Some(_)) => panic!("multiple `*-pass` headers in a single test"), | |
623 | (_, None) => {} | |
624 | } | |
625 | } | |
626 | ||
627 | pub fn pass_mode(&self, config: &Config) -> Option<PassMode> { | |
628 | if !self.ignore_pass { | |
629 | if let (mode @ Some(_), Some(_)) = (config.force_pass_mode, self.pass_mode) { | |
630 | return mode; | |
631 | } | |
632 | } | |
633 | self.pass_mode | |
634 | } | |
e1599b0c XL |
635 | |
636 | // does not consider CLI override for pass mode | |
637 | pub fn local_pass_mode(&self) -> Option<PassMode> { | |
638 | self.pass_mode | |
639 | } | |
a7813a04 XL |
640 | } |
641 | ||
8faf50e0 | 642 | fn iter_header(testfile: &Path, cfg: Option<&str>, it: &mut dyn FnMut(&str)) { |
a7813a04 | 643 | if testfile.is_dir() { |
5bcae85e | 644 | return; |
a7813a04 | 645 | } |
83c7162d XL |
646 | |
647 | let comment = if testfile.to_string_lossy().ends_with(".rs") { | |
648 | "//" | |
649 | } else { | |
650 | "#" | |
651 | }; | |
652 | ||
9fa01778 XL |
653 | // FIXME: would be nice to allow some whitespace between comment and brace :) |
654 | // It took me like 2 days to debug why compile-flags weren’t taken into account for my test :) | |
83c7162d XL |
655 | let comment_with_brace = comment.to_string() + "["; |
656 | ||
a7813a04 XL |
657 | let rdr = BufReader::new(File::open(testfile).unwrap()); |
658 | for ln in rdr.lines() { | |
659 | // Assume that any directives will be found before the first | |
660 | // module or function. This doesn't seem to be an optimization | |
661 | // with a warm page cache. Maybe with a cold one. | |
662 | let ln = ln.unwrap(); | |
663 | let ln = ln.trim(); | |
664 | if ln.starts_with("fn") || ln.starts_with("mod") { | |
665 | return; | |
83c7162d | 666 | } else if ln.starts_with(&comment_with_brace) { |
a7813a04 | 667 | // A comment like `//[foo]` is specific to revision `foo` |
041b39d2 | 668 | if let Some(close_brace) = ln.find(']') { |
83c7162d XL |
669 | let open_brace = ln.find('[').unwrap(); |
670 | let lncfg = &ln[open_brace + 1 .. close_brace]; | |
a7813a04 XL |
671 | let matches = match cfg { |
672 | Some(s) => s == &lncfg[..], | |
673 | None => false, | |
674 | }; | |
675 | if matches { | |
0731742a | 676 | it(ln[(close_brace + 1)..].trim_start()); |
a7813a04 XL |
677 | } |
678 | } else { | |
83c7162d XL |
679 | panic!("malformed condition directive: expected `{}foo]`, found `{}`", |
680 | comment_with_brace, ln) | |
a7813a04 | 681 | } |
83c7162d | 682 | } else if ln.starts_with(comment) { |
0731742a | 683 | it(ln[comment.len() ..].trim_start()); |
a7813a04 XL |
684 | } |
685 | } | |
686 | return; | |
687 | } | |
688 | ||
7cac9316 | 689 | impl Config { |
7cac9316 XL |
690 | fn parse_error_pattern(&self, line: &str) -> Option<String> { |
691 | self.parse_name_value_directive(line, "error-pattern") | |
692 | } | |
a7813a04 | 693 | |
7cac9316 XL |
694 | fn parse_forbid_output(&self, line: &str) -> Option<String> { |
695 | self.parse_name_value_directive(line, "forbid-output") | |
696 | } | |
a7813a04 | 697 | |
7cac9316 XL |
698 | fn parse_aux_build(&self, line: &str) -> Option<String> { |
699 | self.parse_name_value_directive(line, "aux-build") | |
532ac7d7 | 700 | .map(|r| r.trim().to_string()) |
7cac9316 | 701 | } |
a7813a04 | 702 | |
48663c56 XL |
703 | fn parse_extern_private(&self, line: &str) -> Option<String> { |
704 | self.parse_name_value_directive(line, "extern-private") | |
705 | } | |
706 | ||
7cac9316 XL |
707 | fn parse_compile_flags(&self, line: &str) -> Option<String> { |
708 | self.parse_name_value_directive(line, "compile-flags") | |
709 | } | |
a7813a04 | 710 | |
7cac9316 XL |
711 | fn parse_revisions(&self, line: &str) -> Option<Vec<String>> { |
712 | self.parse_name_value_directive(line, "revisions") | |
713 | .map(|r| r.split_whitespace().map(|t| t.to_string()).collect()) | |
714 | } | |
a7813a04 | 715 | |
7cac9316 XL |
716 | fn parse_run_flags(&self, line: &str) -> Option<String> { |
717 | self.parse_name_value_directive(line, "run-flags") | |
718 | } | |
a7813a04 | 719 | |
7cac9316 XL |
720 | fn parse_check_line(&self, line: &str) -> Option<String> { |
721 | self.parse_name_value_directive(line, "check") | |
722 | } | |
a7813a04 | 723 | |
7cac9316 XL |
724 | fn parse_force_host(&self, line: &str) -> bool { |
725 | self.parse_name_directive(line, "force-host") | |
726 | } | |
a7813a04 | 727 | |
7cac9316 XL |
728 | fn parse_build_aux_docs(&self, line: &str) -> bool { |
729 | self.parse_name_directive(line, "build-aux-docs") | |
730 | } | |
a7813a04 | 731 | |
7cac9316 XL |
732 | fn parse_check_stdout(&self, line: &str) -> bool { |
733 | self.parse_name_directive(line, "check-stdout") | |
734 | } | |
a7813a04 | 735 | |
e1599b0c XL |
736 | fn parse_check_run_results(&self, line: &str) -> bool { |
737 | self.parse_name_directive(line, "check-run-results") | |
738 | } | |
739 | ||
0bf4aa26 XL |
740 | fn parse_dont_check_compiler_stdout(&self, line: &str) -> bool { |
741 | self.parse_name_directive(line, "dont-check-compiler-stdout") | |
742 | } | |
743 | ||
744 | fn parse_dont_check_compiler_stderr(&self, line: &str) -> bool { | |
745 | self.parse_name_directive(line, "dont-check-compiler-stderr") | |
746 | } | |
747 | ||
7cac9316 XL |
748 | fn parse_no_prefer_dynamic(&self, line: &str) -> bool { |
749 | self.parse_name_directive(line, "no-prefer-dynamic") | |
750 | } | |
a7813a04 | 751 | |
7cac9316 XL |
752 | fn parse_pretty_expanded(&self, line: &str) -> bool { |
753 | self.parse_name_directive(line, "pretty-expanded") | |
754 | } | |
a7813a04 | 755 | |
7cac9316 XL |
756 | fn parse_pretty_mode(&self, line: &str) -> Option<String> { |
757 | self.parse_name_value_directive(line, "pretty-mode") | |
758 | } | |
a7813a04 | 759 | |
7cac9316 XL |
760 | fn parse_pretty_compare_only(&self, line: &str) -> bool { |
761 | self.parse_name_directive(line, "pretty-compare-only") | |
762 | } | |
9e0c209e | 763 | |
0531ce1d XL |
764 | fn parse_failure_status(&self, line: &str) -> Option<i32> { |
765 | match self.parse_name_value_directive(line, "failure-status") { | |
766 | Some(code) => code.trim().parse::<i32>().ok(), | |
767 | _ => None, | |
768 | } | |
769 | } | |
770 | ||
0531ce1d XL |
771 | fn parse_disable_ui_testing_normalization(&self, line: &str) -> bool { |
772 | self.parse_name_directive(line, "disable-ui-testing-normalization") | |
773 | } | |
774 | ||
7cac9316 XL |
775 | fn parse_check_test_line_numbers_match(&self, line: &str) -> bool { |
776 | self.parse_name_directive(line, "check-test-line-numbers-match") | |
777 | } | |
8bb4bdeb | 778 | |
dc9dc135 XL |
779 | fn parse_ignore_pass(&self, line: &str) -> bool { |
780 | self.parse_name_directive(line, "ignore-pass") | |
83c7162d XL |
781 | } |
782 | ||
532ac7d7 XL |
783 | fn parse_assembly_output(&self, line: &str) -> Option<String> { |
784 | self.parse_name_value_directive(line, "assembly-output") | |
785 | .map(|r| r.trim().to_string()) | |
786 | } | |
787 | ||
7cac9316 XL |
788 | fn parse_env(&self, line: &str, name: &str) -> Option<(String, String)> { |
789 | self.parse_name_value_directive(line, name).map(|nv| { | |
790 | // nv is either FOO or FOO=BAR | |
94b46f34 | 791 | let mut strs: Vec<String> = nv.splitn(2, '=').map(str::to_owned).collect(); |
a7813a04 | 792 | |
7cac9316 | 793 | match strs.len() { |
b7449926 | 794 | 1 => (strs.pop().unwrap(), String::new()), |
7cac9316 XL |
795 | 2 => { |
796 | let end = strs.pop().unwrap(); | |
797 | (strs.pop().unwrap(), end) | |
798 | } | |
799 | n => panic!("Expected 1 or 2 strings, not {}", n), | |
5bcae85e | 800 | } |
7cac9316 XL |
801 | }) |
802 | } | |
a7813a04 | 803 | |
7cac9316 XL |
804 | fn parse_pp_exact(&self, line: &str, testfile: &Path) -> Option<PathBuf> { |
805 | if let Some(s) = self.parse_name_value_directive(line, "pp-exact") { | |
806 | Some(PathBuf::from(&s)) | |
041b39d2 XL |
807 | } else if self.parse_name_directive(line, "pp-exact") { |
808 | testfile.file_name().map(PathBuf::from) | |
a7813a04 | 809 | } else { |
041b39d2 XL |
810 | None |
811 | } | |
812 | } | |
813 | ||
814 | fn parse_custom_normalization(&self, mut line: &str, prefix: &str) -> Option<(String, String)> { | |
0bf4aa26 | 815 | if self.parse_cfg_name_directive(line, prefix) == ParsedNameDirective::Match { |
0731742a XL |
816 | let from = parse_normalization_string(&mut line)?; |
817 | let to = parse_normalization_string(&mut line)?; | |
041b39d2 XL |
818 | Some((from, to)) |
819 | } else { | |
820 | None | |
821 | } | |
822 | } | |
823 | ||
9fa01778 XL |
824 | fn parse_needs_matching_clang(&self, line: &str) -> bool { |
825 | self.parse_name_directive(line, "needs-matching-clang") | |
826 | } | |
827 | ||
48663c56 XL |
828 | fn parse_needs_profiler_support(&self, line: &str) -> bool { |
829 | self.parse_name_directive(line, "needs-profiler-support") | |
830 | } | |
831 | ||
832 | fn parse_needs_sanitizer_support(&self, line: &str) -> bool { | |
833 | self.parse_name_directive(line, "needs-sanitizer-support") | |
834 | } | |
835 | ||
0731742a | 836 | /// Parses a name-value directive which contains config-specific information, e.g., `ignore-x86` |
0bf4aa26 XL |
837 | /// or `normalize-stderr-32bit`. |
838 | fn parse_cfg_name_directive(&self, line: &str, prefix: &str) -> ParsedNameDirective { | |
041b39d2 | 839 | if line.starts_with(prefix) && line.as_bytes().get(prefix.len()) == Some(&b'-') { |
94b46f34 XL |
840 | let name = line[prefix.len() + 1..] |
841 | .split(&[':', ' '][..]) | |
842 | .next() | |
843 | .unwrap(); | |
041b39d2 | 844 | |
0bf4aa26 | 845 | if name == "test" || |
abe05a73 | 846 | util::matches_os(&self.target, name) || // target |
e1599b0c | 847 | util::matches_env(&self.target, name) || // env |
041b39d2 XL |
848 | name == util::get_arch(&self.target) || // architecture |
849 | name == util::get_pointer_width(&self.target) || // pointer width | |
850 | name == self.stage_id.split('-').next().unwrap() || // stage | |
b7449926 | 851 | (self.target != self.host && name == "cross-compile") || |
8faf50e0 XL |
852 | match self.compare_mode { |
853 | Some(CompareMode::Nll) => name == "compare-mode-nll", | |
854 | Some(CompareMode::Polonius) => name == "compare-mode-polonius", | |
855 | None => false, | |
b7449926 | 856 | } || |
0bf4aa26 XL |
857 | (cfg!(debug_assertions) && name == "debug") { |
858 | ParsedNameDirective::Match | |
859 | } else { | |
860 | match self.mode { | |
dc9dc135 | 861 | common::DebugInfoGdbLldb => { |
0bf4aa26 XL |
862 | if name == "gdb" { |
863 | ParsedNameDirective::MatchGdb | |
864 | } else if name == "lldb" { | |
865 | ParsedNameDirective::MatchLldb | |
866 | } else { | |
867 | ParsedNameDirective::NoMatch | |
868 | } | |
869 | }, | |
dc9dc135 XL |
870 | common::DebugInfoCdb => if name == "cdb" { |
871 | ParsedNameDirective::Match | |
872 | } else { | |
873 | ParsedNameDirective::NoMatch | |
874 | }, | |
0bf4aa26 XL |
875 | common::DebugInfoGdb => if name == "gdb" { |
876 | ParsedNameDirective::Match | |
877 | } else { | |
878 | ParsedNameDirective::NoMatch | |
879 | }, | |
880 | common::DebugInfoLldb => if name == "lldb" { | |
881 | ParsedNameDirective::Match | |
882 | } else { | |
883 | ParsedNameDirective::NoMatch | |
884 | }, | |
885 | common::Pretty => if name == "pretty" { | |
886 | ParsedNameDirective::Match | |
887 | } else { | |
888 | ParsedNameDirective::NoMatch | |
889 | }, | |
890 | _ => ParsedNameDirective::NoMatch, | |
891 | } | |
892 | } | |
041b39d2 | 893 | } else { |
0bf4aa26 | 894 | ParsedNameDirective::NoMatch |
a7813a04 XL |
895 | } |
896 | } | |
a7813a04 | 897 | |
2c00a5a8 XL |
898 | fn has_cfg_prefix(&self, line: &str, prefix: &str) -> bool { |
899 | // returns whether this line contains this prefix or not. For prefix | |
900 | // "ignore", returns true if line says "ignore-x86_64", "ignore-arch", | |
83c7162d | 901 | // "ignore-android" etc. |
2c00a5a8 XL |
902 | line.starts_with(prefix) && line.as_bytes().get(prefix.len()) == Some(&b'-') |
903 | } | |
904 | ||
7cac9316 XL |
905 | fn parse_name_directive(&self, line: &str, directive: &str) -> bool { |
906 | // Ensure the directive is a whole word. Do not match "ignore-x86" when | |
907 | // the line says "ignore-x86_64". | |
908 | line.starts_with(directive) && match line.as_bytes().get(directive.len()) { | |
909 | None | Some(&b' ') | Some(&b':') => true, | |
94b46f34 | 910 | _ => false, |
7cac9316 XL |
911 | } |
912 | } | |
a7813a04 | 913 | |
7cac9316 XL |
914 | pub fn parse_name_value_directive(&self, line: &str, directive: &str) -> Option<String> { |
915 | let colon = directive.len(); | |
916 | if line.starts_with(directive) && line.as_bytes().get(colon) == Some(&b':') { | |
94b46f34 | 917 | let value = line[(colon + 1)..].to_owned(); |
7cac9316 XL |
918 | debug!("{}: {}", directive, value); |
919 | Some(expand_variables(value, self)) | |
920 | } else { | |
921 | None | |
922 | } | |
a7813a04 | 923 | } |
abe05a73 XL |
924 | |
925 | pub fn find_rust_src_root(&self) -> Option<PathBuf> { | |
926 | let mut path = self.src_base.clone(); | |
927 | let path_postfix = Path::new("src/etc/lldb_batchmode.py"); | |
928 | ||
929 | while path.pop() { | |
930 | if path.join(&path_postfix).is_file() { | |
931 | return Some(path); | |
932 | } | |
933 | } | |
934 | ||
935 | None | |
936 | } | |
83c7162d XL |
937 | |
938 | fn parse_run_rustfix(&self, line: &str) -> bool { | |
939 | self.parse_name_directive(line, "run-rustfix") | |
940 | } | |
8faf50e0 | 941 | |
b7449926 XL |
942 | fn parse_rustfix_only_machine_applicable(&self, line: &str) -> bool { |
943 | self.parse_name_directive(line, "rustfix-only-machine-applicable") | |
944 | } | |
945 | ||
8faf50e0 XL |
946 | fn parse_edition(&self, line: &str) -> Option<String> { |
947 | self.parse_name_value_directive(line, "edition") | |
948 | } | |
a7813a04 XL |
949 | } |
950 | ||
a7813a04 | 951 | pub fn lldb_version_to_int(version_string: &str) -> isize { |
94b46f34 XL |
952 | let error_string = format!( |
953 | "Encountered LLDB version string with unexpected format: {}", | |
954 | version_string | |
955 | ); | |
041b39d2 | 956 | version_string.parse().expect(&error_string) |
a7813a04 | 957 | } |
7cac9316 XL |
958 | |
959 | fn expand_variables(mut value: String, config: &Config) -> String { | |
960 | const CWD: &'static str = "{{cwd}}"; | |
961 | const SRC_BASE: &'static str = "{{src-base}}"; | |
962 | const BUILD_BASE: &'static str = "{{build-base}}"; | |
963 | ||
964 | if value.contains(CWD) { | |
965 | let cwd = env::current_dir().unwrap(); | |
966 | value = value.replace(CWD, &cwd.to_string_lossy()); | |
967 | } | |
968 | ||
969 | if value.contains(SRC_BASE) { | |
970 | value = value.replace(SRC_BASE, &config.src_base.to_string_lossy()); | |
971 | } | |
972 | ||
973 | if value.contains(BUILD_BASE) { | |
974 | value = value.replace(BUILD_BASE, &config.build_base.to_string_lossy()); | |
975 | } | |
976 | ||
977 | value | |
978 | } | |
041b39d2 XL |
979 | |
980 | /// Finds the next quoted string `"..."` in `line`, and extract the content from it. Move the `line` | |
981 | /// variable after the end of the quoted string. | |
982 | /// | |
983 | /// # Examples | |
984 | /// | |
985 | /// ``` | |
986 | /// let mut s = "normalize-stderr-32bit: \"something (32 bits)\" -> \"something ($WORD bits)\"."; | |
987 | /// let first = parse_normalization_string(&mut s); | |
988 | /// assert_eq!(first, Some("something (32 bits)".to_owned())); | |
989 | /// assert_eq!(s, " -> \"something ($WORD bits)\"."); | |
990 | /// ``` | |
991 | fn parse_normalization_string(line: &mut &str) -> Option<String> { | |
992 | // FIXME support escapes in strings. | |
0731742a XL |
993 | let begin = line.find('"')? + 1; |
994 | let end = line[begin..].find('"')? + begin; | |
041b39d2 | 995 | let result = line[begin..end].to_owned(); |
94b46f34 | 996 | *line = &line[end + 1..]; |
041b39d2 XL |
997 | Some(result) |
998 | } |