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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 | ||
dfeec247 | 9 | use crate::common::{CompareMode, Config, Debugger, FailMode, Mode, PassMode}; |
9fa01778 | 10 | use crate::extract_gdb_version; |
dfeec247 | 11 | use crate::util; |
c30ab7b3 | 12 | |
416331ca XL |
13 | #[cfg(test)] |
14 | mod tests; | |
15 | ||
0bf4aa26 XL |
16 | /// The result of parse_cfg_name_directive. |
17 | #[derive(Clone, Copy, PartialEq, Debug)] | |
18 | enum ParsedNameDirective { | |
19 | /// No match. | |
20 | NoMatch, | |
21 | /// Match. | |
22 | Match, | |
0bf4aa26 XL |
23 | } |
24 | ||
a7813a04 XL |
25 | /// Properties which must be known very early, before actually running |
26 | /// the test. | |
74b04a01 | 27 | #[derive(Default)] |
a7813a04 | 28 | pub struct EarlyProps { |
dfeec247 | 29 | pub ignore: bool, |
a7813a04 | 30 | pub should_fail: bool, |
8bb4bdeb | 31 | pub aux: Vec<String>, |
60c5eb7d | 32 | pub aux_crate: Vec<(String, String)>, |
ff7c6d11 | 33 | pub revisions: Vec<String>, |
a7813a04 XL |
34 | } |
35 | ||
36 | impl EarlyProps { | |
37 | pub fn from_file(config: &Config, testfile: &Path) -> Self { | |
74b04a01 XL |
38 | let file = File::open(testfile).unwrap(); |
39 | Self::from_reader(config, testfile, file) | |
40 | } | |
a7813a04 | 41 | |
74b04a01 XL |
42 | pub fn from_reader<R: Read>(config: &Config, testfile: &Path, rdr: R) -> Self { |
43 | let mut props = EarlyProps::default(); | |
48663c56 XL |
44 | let rustc_has_profiler_support = env::var_os("RUSTC_PROFILER_SUPPORT").is_some(); |
45 | let rustc_has_sanitizer_support = env::var_os("RUSTC_SANITIZER_SUPPORT").is_some(); | |
46 | ||
74b04a01 | 47 | iter_header(testfile, None, rdr, &mut |ln| { |
2c00a5a8 XL |
48 | // we should check if any only-<platform> exists and if it exists |
49 | // and does not matches the current platform, skip the test | |
dfeec247 | 50 | if !props.ignore { |
0bf4aa26 | 51 | props.ignore = match config.parse_cfg_name_directive(ln, "ignore") { |
dfeec247 | 52 | ParsedNameDirective::Match => true, |
0bf4aa26 | 53 | ParsedNameDirective::NoMatch => props.ignore, |
0bf4aa26 XL |
54 | }; |
55 | ||
56 | if config.has_cfg_prefix(ln, "only") { | |
57 | props.ignore = match config.parse_cfg_name_directive(ln, "only") { | |
58 | ParsedNameDirective::Match => props.ignore, | |
dfeec247 | 59 | ParsedNameDirective::NoMatch => true, |
0bf4aa26 XL |
60 | }; |
61 | } | |
62 | ||
63 | if ignore_llvm(config, ln) { | |
dfeec247 | 64 | props.ignore = true; |
0bf4aa26 | 65 | } |
9fa01778 | 66 | |
dfeec247 XL |
67 | if config.run_clang_based_tests_with.is_none() |
68 | && config.parse_needs_matching_clang(ln) | |
69 | { | |
70 | props.ignore = true; | |
9fa01778 | 71 | } |
48663c56 | 72 | |
dfeec247 XL |
73 | if !rustc_has_profiler_support && config.parse_needs_profiler_support(ln) { |
74 | props.ignore = true; | |
48663c56 XL |
75 | } |
76 | ||
dfeec247 XL |
77 | if !rustc_has_sanitizer_support && config.parse_needs_sanitizer_support(ln) { |
78 | props.ignore = true; | |
48663c56 | 79 | } |
e1599b0c XL |
80 | |
81 | if config.target == "wasm32-unknown-unknown" && config.parse_check_run_results(ln) { | |
dfeec247 | 82 | props.ignore = true; |
e1599b0c | 83 | } |
0bf4aa26 | 84 | |
dfeec247 XL |
85 | if config.debugger == Some(Debugger::Gdb) && ignore_gdb(config, ln) { |
86 | props.ignore = true; | |
87 | } | |
0bf4aa26 | 88 | |
dfeec247 XL |
89 | if config.debugger == Some(Debugger::Lldb) && ignore_lldb(config, ln) { |
90 | props.ignore = true; | |
91 | } | |
0bf4aa26 | 92 | } |
a7813a04 | 93 | |
7cac9316 | 94 | if let Some(s) = config.parse_aux_build(ln) { |
8bb4bdeb XL |
95 | props.aux.push(s); |
96 | } | |
97 | ||
60c5eb7d XL |
98 | if let Some(ac) = config.parse_aux_crate(ln) { |
99 | props.aux_crate.push(ac); | |
100 | } | |
101 | ||
ff7c6d11 XL |
102 | if let Some(r) = config.parse_revisions(ln) { |
103 | props.revisions.extend(r); | |
104 | } | |
105 | ||
7cac9316 | 106 | props.should_fail = props.should_fail || config.parse_name_directive(ln, "should-fail"); |
a7813a04 XL |
107 | }); |
108 | ||
109 | return props; | |
110 | ||
a7813a04 | 111 | fn ignore_gdb(config: &Config, line: &str) -> bool { |
c30ab7b3 | 112 | if let Some(actual_version) = config.gdb_version { |
7cac9316 | 113 | if line.starts_with("min-gdb-version") { |
32a655c1 SL |
114 | let (start_ver, end_ver) = extract_gdb_version_range(line); |
115 | ||
116 | if start_ver != end_ver { | |
117 | panic!("Expected single GDB version") | |
118 | } | |
a7813a04 XL |
119 | // Ignore if actual version is smaller the minimum required |
120 | // version | |
32a655c1 | 121 | actual_version < start_ver |
7cac9316 | 122 | } else if line.starts_with("ignore-gdb-version") { |
32a655c1 SL |
123 | let (min_version, max_version) = extract_gdb_version_range(line); |
124 | ||
125 | if max_version < min_version { | |
126 | panic!("Malformed GDB version range: max < min") | |
127 | } | |
128 | ||
129 | actual_version >= min_version && actual_version <= max_version | |
a7813a04 XL |
130 | } else { |
131 | false | |
132 | } | |
133 | } else { | |
134 | false | |
135 | } | |
136 | } | |
137 | ||
32a655c1 SL |
138 | // Takes a directive of the form "ignore-gdb-version <version1> [- <version2>]", |
139 | // returns the numeric representation of <version1> and <version2> as | |
140 | // tuple: (<version1> as u32, <version2> as u32) | |
141 | // If the <version2> part is omitted, the second component of the tuple | |
142 | // is the same as <version1>. | |
143 | fn extract_gdb_version_range(line: &str) -> (u32, u32) { | |
144 | const ERROR_MESSAGE: &'static str = "Malformed GDB version directive"; | |
145 | ||
dfeec247 XL |
146 | let range_components = line |
147 | .split(&[' ', '-'][..]) | |
148 | .filter(|word| !word.is_empty()) | |
149 | .map(extract_gdb_version) | |
150 | .skip_while(Option::is_none) | |
151 | .take(3) // 3 or more = invalid, so take at most 3. | |
152 | .collect::<Vec<Option<u32>>>(); | |
32a655c1 SL |
153 | |
154 | match range_components.len() { | |
155 | 1 => { | |
7cac9316 | 156 | let v = range_components[0].unwrap(); |
32a655c1 SL |
157 | (v, v) |
158 | } | |
159 | 2 => { | |
7cac9316 XL |
160 | let v_min = range_components[0].unwrap(); |
161 | let v_max = range_components[1].expect(ERROR_MESSAGE); | |
32a655c1 SL |
162 | (v_min, v_max) |
163 | } | |
164 | _ => panic!(ERROR_MESSAGE), | |
165 | } | |
166 | } | |
167 | ||
a7813a04 | 168 | fn ignore_lldb(config: &Config, line: &str) -> bool { |
a7813a04 | 169 | if let Some(ref actual_version) = config.lldb_version { |
7cac9316 | 170 | if line.starts_with("min-lldb-version") { |
dfeec247 XL |
171 | let min_version = line |
172 | .trim_end() | |
7cac9316 XL |
173 | .rsplit(' ') |
174 | .next() | |
5bcae85e | 175 | .expect("Malformed lldb version directive"); |
a7813a04 XL |
176 | // Ignore if actual version is smaller the minimum required |
177 | // version | |
5bcae85e | 178 | lldb_version_to_int(actual_version) < lldb_version_to_int(min_version) |
0bf4aa26 XL |
179 | } else if line.starts_with("rust-lldb") && !config.lldb_native_rust { |
180 | true | |
a7813a04 XL |
181 | } else { |
182 | false | |
183 | } | |
184 | } else { | |
185 | false | |
186 | } | |
187 | } | |
9e0c209e SL |
188 | |
189 | fn ignore_llvm(config: &Config, line: &str) -> bool { | |
041b39d2 | 190 | if config.system_llvm && line.starts_with("no-system-llvm") { |
94b46f34 | 191 | return true; |
041b39d2 | 192 | } |
9e0c209e | 193 | if let Some(ref actual_version) = config.llvm_version { |
ba9703b0 | 194 | let actual_version = version_to_int(actual_version); |
7cac9316 | 195 | if line.starts_with("min-llvm-version") { |
dfeec247 XL |
196 | let min_version = line |
197 | .trim_end() | |
7cac9316 XL |
198 | .rsplit(' ') |
199 | .next() | |
9e0c209e SL |
200 | .expect("Malformed llvm version directive"); |
201 | // Ignore if actual version is smaller the minimum required | |
202 | // version | |
ba9703b0 | 203 | actual_version < version_to_int(min_version) |
abe05a73 | 204 | } else if line.starts_with("min-system-llvm-version") { |
dfeec247 XL |
205 | let min_version = line |
206 | .trim_end() | |
abe05a73 XL |
207 | .rsplit(' ') |
208 | .next() | |
209 | .expect("Malformed llvm version directive"); | |
210 | // Ignore if using system LLVM and actual version | |
211 | // is smaller the minimum required version | |
ba9703b0 | 212 | config.system_llvm && actual_version < version_to_int(min_version) |
a1dfa0c6 XL |
213 | } else if line.starts_with("ignore-llvm-version") { |
214 | // Syntax is: "ignore-llvm-version <version1> [- <version2>]" | |
dfeec247 XL |
215 | let range_components = line |
216 | .split(' ') | |
a1dfa0c6 XL |
217 | .skip(1) // Skip the directive. |
218 | .map(|s| s.trim()) | |
219 | .filter(|word| !word.is_empty() && word != &"-") | |
220 | .take(3) // 3 or more = invalid, so take at most 3. | |
221 | .collect::<Vec<&str>>(); | |
222 | match range_components.len() { | |
ba9703b0 | 223 | 1 => actual_version == version_to_int(range_components[0]), |
a1dfa0c6 | 224 | 2 => { |
ba9703b0 XL |
225 | let v_min = version_to_int(range_components[0]); |
226 | let v_max = version_to_int(range_components[1]); | |
a1dfa0c6 XL |
227 | if v_max < v_min { |
228 | panic!("Malformed LLVM version range: max < min") | |
229 | } | |
230 | // Ignore if version lies inside of range. | |
ba9703b0 | 231 | actual_version >= v_min && actual_version <= v_max |
a1dfa0c6 XL |
232 | } |
233 | _ => panic!("Malformed LLVM version directive"), | |
234 | } | |
9e0c209e SL |
235 | } else { |
236 | false | |
237 | } | |
238 | } else { | |
239 | false | |
240 | } | |
241 | } | |
ba9703b0 XL |
242 | |
243 | fn version_to_int(version: &str) -> u32 { | |
244 | let version_without_suffix = version.split('-').next().unwrap(); | |
245 | let components: Vec<u32> = version_without_suffix | |
246 | .split('.') | |
247 | .map(|s| s.parse().expect("Malformed version component")) | |
248 | .collect(); | |
249 | match components.len() { | |
250 | 1 => components[0] * 10000, | |
251 | 2 => components[0] * 10000 + components[1] * 100, | |
252 | 3 => components[0] * 10000 + components[1] * 100 + components[2], | |
253 | _ => panic!("Malformed version"), | |
254 | } | |
255 | } | |
a7813a04 XL |
256 | } |
257 | } | |
258 | ||
259 | #[derive(Clone, Debug)] | |
260 | pub struct TestProps { | |
261 | // Lines that should be expected, in order, on standard out | |
5bcae85e | 262 | pub error_patterns: Vec<String>, |
a7813a04 XL |
263 | // Extra flags to pass to the compiler |
264 | pub compile_flags: Vec<String>, | |
265 | // Extra flags to pass when the compiled code is run (such as --bench) | |
266 | pub run_flags: Option<String>, | |
267 | // If present, the name of a file that this test should match when | |
268 | // pretty-printed | |
269 | pub pp_exact: Option<PathBuf>, | |
270 | // Other crates that should be compiled (typically from the same | |
271 | // directory as the test, but for backwards compatibility reasons | |
272 | // we also check the auxiliary directory) | |
5bcae85e | 273 | pub aux_builds: Vec<String>, |
60c5eb7d XL |
274 | // Similar to `aux_builds`, but a list of NAME=somelib.rs of dependencies |
275 | // to build and pass with the `--extern` flag. | |
276 | pub aux_crates: Vec<(String, String)>, | |
a7813a04 | 277 | // Environment settings to use for compiling |
5bcae85e | 278 | pub rustc_env: Vec<(String, String)>, |
48663c56 XL |
279 | // Environment variables to unset prior to compiling. |
280 | // Variables are unset before applying 'rustc_env'. | |
281 | pub unset_rustc_env: Vec<String>, | |
a7813a04 | 282 | // Environment settings to use during execution |
5bcae85e | 283 | pub exec_env: Vec<(String, String)>, |
a7813a04 | 284 | // Lines to check if they appear in the expected debugger output |
5bcae85e | 285 | pub check_lines: Vec<String>, |
a7813a04 XL |
286 | // Build documentation for all specified aux-builds as well |
287 | pub build_aux_docs: bool, | |
288 | // Flag to force a crate to be built with the host architecture | |
289 | pub force_host: bool, | |
290 | // Check stdout for error-pattern output as well as stderr | |
291 | pub check_stdout: bool, | |
e1599b0c XL |
292 | // Check stdout & stderr for output of run-pass test |
293 | pub check_run_results: bool, | |
0bf4aa26 XL |
294 | // For UI tests, allows compiler to generate arbitrary output to stdout |
295 | pub dont_check_compiler_stdout: bool, | |
296 | // For UI tests, allows compiler to generate arbitrary output to stderr | |
297 | pub dont_check_compiler_stderr: bool, | |
a7813a04 | 298 | // Don't force a --crate-type=dylib flag on the command line |
48663c56 XL |
299 | // |
300 | // Set this for example if you have an auxiliary test file that contains | |
301 | // a proc-macro and needs `#![crate_type = "proc-macro"]`. This ensures | |
302 | // that the aux file is compiled as a `proc-macro` and not as a `dylib`. | |
a7813a04 XL |
303 | pub no_prefer_dynamic: bool, |
304 | // Run --pretty expanded when running pretty printing tests | |
305 | pub pretty_expanded: bool, | |
306 | // Which pretty mode are we testing with, default to 'normal' | |
307 | pub pretty_mode: String, | |
308 | // Only compare pretty output and don't try compiling | |
309 | pub pretty_compare_only: bool, | |
310 | // Patterns which must not appear in the output of a cfail test. | |
311 | pub forbid_output: Vec<String>, | |
312 | // Revisions to test for incremental compilation. | |
313 | pub revisions: Vec<String>, | |
314 | // Directory (if any) to use for incremental compilation. This is | |
315 | // not set by end-users; rather it is set by the incremental | |
316 | // testing harness and used when generating compilation | |
317 | // arguments. (In particular, it propagates to the aux-builds.) | |
318 | pub incremental_dir: Option<PathBuf>, | |
dc9dc135 XL |
319 | // How far should the test proceed while still passing. |
320 | pass_mode: Option<PassMode>, | |
321 | // Ignore `--pass` overrides from the command line for this test. | |
322 | ignore_pass: bool, | |
dfeec247 XL |
323 | // How far this test should proceed to start failing. |
324 | pub fail_mode: Option<FailMode>, | |
8bb4bdeb XL |
325 | // rustdoc will test the output of the `--test` option |
326 | pub check_test_line_numbers_match: bool, | |
041b39d2 XL |
327 | // customized normalization rules |
328 | pub normalize_stdout: Vec<(String, String)>, | |
329 | pub normalize_stderr: Vec<(String, String)>, | |
0531ce1d | 330 | pub failure_status: i32, |
532ac7d7 XL |
331 | // Whether or not `rustfix` should apply the `CodeSuggestion`s of this test and compile the |
332 | // resulting Rust code. | |
83c7162d | 333 | pub run_rustfix: bool, |
532ac7d7 | 334 | // If true, `rustfix` will only apply `MachineApplicable` suggestions. |
b7449926 | 335 | pub rustfix_only_machine_applicable: bool, |
532ac7d7 | 336 | pub assembly_output: Option<String>, |
60c5eb7d XL |
337 | // If true, the test is expected to ICE |
338 | pub should_ice: bool, | |
a7813a04 XL |
339 | } |
340 | ||
341 | impl TestProps { | |
342 | pub fn new() -> Self { | |
a7813a04 | 343 | TestProps { |
9e0c209e | 344 | error_patterns: vec![], |
a7813a04 | 345 | compile_flags: vec![], |
9e0c209e SL |
346 | run_flags: None, |
347 | pp_exact: None, | |
348 | aux_builds: vec![], | |
60c5eb7d | 349 | aux_crates: vec![], |
a7813a04 XL |
350 | revisions: vec![], |
351 | rustc_env: vec![], | |
48663c56 | 352 | unset_rustc_env: vec![], |
9e0c209e SL |
353 | exec_env: vec![], |
354 | check_lines: vec![], | |
355 | build_aux_docs: false, | |
356 | force_host: false, | |
357 | check_stdout: false, | |
e1599b0c | 358 | check_run_results: false, |
0bf4aa26 XL |
359 | dont_check_compiler_stdout: false, |
360 | dont_check_compiler_stderr: false, | |
9e0c209e SL |
361 | no_prefer_dynamic: false, |
362 | pretty_expanded: false, | |
041b39d2 | 363 | pretty_mode: "normal".to_string(), |
9e0c209e SL |
364 | pretty_compare_only: false, |
365 | forbid_output: vec![], | |
a7813a04 | 366 | incremental_dir: None, |
dc9dc135 | 367 | pass_mode: None, |
dfeec247 | 368 | fail_mode: None, |
dc9dc135 | 369 | ignore_pass: false, |
8bb4bdeb | 370 | check_test_line_numbers_match: false, |
041b39d2 XL |
371 | normalize_stdout: vec![], |
372 | normalize_stderr: vec![], | |
8faf50e0 | 373 | failure_status: -1, |
83c7162d | 374 | run_rustfix: false, |
b7449926 | 375 | rustfix_only_machine_applicable: false, |
532ac7d7 | 376 | assembly_output: None, |
60c5eb7d | 377 | should_ice: false, |
a7813a04 XL |
378 | } |
379 | } | |
380 | ||
94b46f34 | 381 | pub fn from_aux_file(&self, testfile: &Path, cfg: Option<&str>, config: &Config) -> Self { |
a7813a04 XL |
382 | let mut props = TestProps::new(); |
383 | ||
384 | // copy over select properties to the aux build: | |
385 | props.incremental_dir = self.incremental_dir.clone(); | |
7cac9316 | 386 | props.load_from(testfile, cfg, config); |
a7813a04 XL |
387 | |
388 | props | |
389 | } | |
390 | ||
abe05a73 | 391 | pub fn from_file(testfile: &Path, cfg: Option<&str>, config: &Config) -> Self { |
a7813a04 | 392 | let mut props = TestProps::new(); |
abe05a73 | 393 | props.load_from(testfile, cfg, config); |
dfeec247 XL |
394 | |
395 | match (props.pass_mode, props.fail_mode) { | |
396 | (None, None) => props.fail_mode = Some(FailMode::Check), | |
397 | (Some(_), None) | (None, Some(_)) => {} | |
398 | (Some(_), Some(_)) => panic!("cannot use a *-fail and *-pass mode together"), | |
399 | } | |
400 | ||
a7813a04 XL |
401 | props |
402 | } | |
403 | ||
9fa01778 | 404 | /// Loads properties from `testfile` into `props`. If a property is |
a7813a04 XL |
405 | /// tied to a particular revision `foo` (indicated by writing |
406 | /// `//[foo]`), then the property is ignored unless `cfg` is | |
407 | /// `Some("foo")`. | |
94b46f34 | 408 | fn load_from(&mut self, testfile: &Path, cfg: Option<&str>, config: &Config) { |
74b04a01 XL |
409 | if !testfile.is_dir() { |
410 | let file = File::open(testfile).unwrap(); | |
a7813a04 | 411 | |
74b04a01 XL |
412 | iter_header(testfile, cfg, file, &mut |ln| { |
413 | if let Some(ep) = config.parse_error_pattern(ln) { | |
414 | self.error_patterns.push(ep); | |
415 | } | |
a7813a04 | 416 | |
74b04a01 XL |
417 | if let Some(flags) = config.parse_compile_flags(ln) { |
418 | self.compile_flags.extend(flags.split_whitespace().map(|s| s.to_owned())); | |
419 | } | |
8faf50e0 | 420 | |
74b04a01 XL |
421 | if let Some(edition) = config.parse_edition(ln) { |
422 | self.compile_flags.push(format!("--edition={}", edition)); | |
423 | } | |
a7813a04 | 424 | |
74b04a01 XL |
425 | if let Some(r) = config.parse_revisions(ln) { |
426 | self.revisions.extend(r); | |
427 | } | |
a7813a04 | 428 | |
74b04a01 XL |
429 | if self.run_flags.is_none() { |
430 | self.run_flags = config.parse_run_flags(ln); | |
431 | } | |
a7813a04 | 432 | |
74b04a01 XL |
433 | if self.pp_exact.is_none() { |
434 | self.pp_exact = config.parse_pp_exact(ln, testfile); | |
435 | } | |
60c5eb7d | 436 | |
74b04a01 XL |
437 | if !self.should_ice { |
438 | self.should_ice = config.parse_should_ice(ln); | |
439 | } | |
a7813a04 | 440 | |
74b04a01 XL |
441 | if !self.build_aux_docs { |
442 | self.build_aux_docs = config.parse_build_aux_docs(ln); | |
443 | } | |
a7813a04 | 444 | |
74b04a01 XL |
445 | if !self.force_host { |
446 | self.force_host = config.parse_force_host(ln); | |
447 | } | |
a7813a04 | 448 | |
74b04a01 XL |
449 | if !self.check_stdout { |
450 | self.check_stdout = config.parse_check_stdout(ln); | |
451 | } | |
e1599b0c | 452 | |
74b04a01 XL |
453 | if !self.check_run_results { |
454 | self.check_run_results = config.parse_check_run_results(ln); | |
455 | } | |
0bf4aa26 | 456 | |
74b04a01 XL |
457 | if !self.dont_check_compiler_stdout { |
458 | self.dont_check_compiler_stdout = config.parse_dont_check_compiler_stdout(ln); | |
459 | } | |
0bf4aa26 | 460 | |
74b04a01 XL |
461 | if !self.dont_check_compiler_stderr { |
462 | self.dont_check_compiler_stderr = config.parse_dont_check_compiler_stderr(ln); | |
463 | } | |
a7813a04 | 464 | |
74b04a01 XL |
465 | if !self.no_prefer_dynamic { |
466 | self.no_prefer_dynamic = config.parse_no_prefer_dynamic(ln); | |
467 | } | |
a7813a04 | 468 | |
74b04a01 XL |
469 | if !self.pretty_expanded { |
470 | self.pretty_expanded = config.parse_pretty_expanded(ln); | |
471 | } | |
a7813a04 | 472 | |
74b04a01 XL |
473 | if let Some(m) = config.parse_pretty_mode(ln) { |
474 | self.pretty_mode = m; | |
475 | } | |
a7813a04 | 476 | |
74b04a01 XL |
477 | if !self.pretty_compare_only { |
478 | self.pretty_compare_only = config.parse_pretty_compare_only(ln); | |
479 | } | |
a7813a04 | 480 | |
74b04a01 XL |
481 | if let Some(ab) = config.parse_aux_build(ln) { |
482 | self.aux_builds.push(ab); | |
483 | } | |
48663c56 | 484 | |
74b04a01 XL |
485 | if let Some(ac) = config.parse_aux_crate(ln) { |
486 | self.aux_crates.push(ac); | |
487 | } | |
a7813a04 | 488 | |
74b04a01 XL |
489 | if let Some(ee) = config.parse_env(ln, "exec-env") { |
490 | self.exec_env.push(ee); | |
491 | } | |
a7813a04 | 492 | |
74b04a01 XL |
493 | if let Some(ee) = config.parse_env(ln, "rustc-env") { |
494 | self.rustc_env.push(ee); | |
495 | } | |
48663c56 | 496 | |
74b04a01 XL |
497 | if let Some(ev) = config.parse_name_value_directive(ln, "unset-rustc-env") { |
498 | self.unset_rustc_env.push(ev); | |
499 | } | |
a7813a04 | 500 | |
74b04a01 XL |
501 | if let Some(cl) = config.parse_check_line(ln) { |
502 | self.check_lines.push(cl); | |
503 | } | |
9e0c209e | 504 | |
74b04a01 XL |
505 | if let Some(of) = config.parse_forbid_output(ln) { |
506 | self.forbid_output.push(of); | |
507 | } | |
7cac9316 | 508 | |
74b04a01 XL |
509 | if !self.check_test_line_numbers_match { |
510 | self.check_test_line_numbers_match = | |
511 | config.parse_check_test_line_numbers_match(ln); | |
512 | } | |
ff7c6d11 | 513 | |
74b04a01 XL |
514 | self.update_pass_mode(ln, cfg, config); |
515 | self.update_fail_mode(ln, config); | |
83c7162d | 516 | |
74b04a01 XL |
517 | if !self.ignore_pass { |
518 | self.ignore_pass = config.parse_ignore_pass(ln); | |
519 | } | |
0531ce1d | 520 | |
74b04a01 XL |
521 | if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stdout") { |
522 | self.normalize_stdout.push(rule); | |
523 | } | |
524 | if let Some(rule) = config.parse_custom_normalization(ln, "normalize-stderr") { | |
525 | self.normalize_stderr.push(rule); | |
526 | } | |
83c7162d | 527 | |
74b04a01 XL |
528 | if let Some(code) = config.parse_failure_status(ln) { |
529 | self.failure_status = code; | |
530 | } | |
b7449926 | 531 | |
74b04a01 XL |
532 | if !self.run_rustfix { |
533 | self.run_rustfix = config.parse_run_rustfix(ln); | |
534 | } | |
532ac7d7 | 535 | |
74b04a01 XL |
536 | if !self.rustfix_only_machine_applicable { |
537 | self.rustfix_only_machine_applicable = | |
538 | config.parse_rustfix_only_machine_applicable(ln); | |
539 | } | |
540 | ||
541 | if self.assembly_output.is_none() { | |
542 | self.assembly_output = config.parse_assembly_output(ln); | |
543 | } | |
544 | }); | |
545 | } | |
a7813a04 | 546 | |
74d20737 XL |
547 | if self.failure_status == -1 { |
548 | self.failure_status = match config.mode { | |
549 | Mode::RunFail => 101, | |
550 | _ => 1, | |
551 | }; | |
552 | } | |
60c5eb7d XL |
553 | if self.should_ice { |
554 | self.failure_status = 101; | |
555 | } | |
74d20737 | 556 | |
041b39d2 XL |
557 | for key in &["RUST_TEST_NOCAPTURE", "RUST_TEST_THREADS"] { |
558 | if let Ok(val) = env::var(key) { | |
559 | if self.exec_env.iter().find(|&&(ref x, _)| x == key).is_none() { | |
560 | self.exec_env.push(((*key).to_owned(), val)) | |
5bcae85e | 561 | } |
a7813a04 XL |
562 | } |
563 | } | |
564 | } | |
dc9dc135 | 565 | |
dfeec247 XL |
566 | fn update_fail_mode(&mut self, ln: &str, config: &Config) { |
567 | let check_ui = |mode: &str| { | |
568 | if config.mode != Mode::Ui { | |
569 | panic!("`{}-fail` header is only supported in UI tests", mode); | |
570 | } | |
571 | }; | |
74b04a01 XL |
572 | if config.mode == Mode::Ui && config.parse_name_directive(ln, "compile-fail") { |
573 | panic!("`compile-fail` header is useless in UI tests"); | |
574 | } | |
dfeec247 XL |
575 | let fail_mode = if config.parse_name_directive(ln, "check-fail") { |
576 | check_ui("check"); | |
577 | Some(FailMode::Check) | |
578 | } else if config.parse_name_directive(ln, "build-fail") { | |
579 | check_ui("build"); | |
580 | Some(FailMode::Build) | |
581 | } else if config.parse_name_directive(ln, "run-fail") { | |
582 | check_ui("run"); | |
583 | Some(FailMode::Run) | |
584 | } else { | |
585 | None | |
586 | }; | |
587 | match (self.fail_mode, fail_mode) { | |
588 | (None, Some(_)) => self.fail_mode = fail_mode, | |
589 | (Some(_), Some(_)) => panic!("multiple `*-fail` headers in a single test"), | |
590 | (_, None) => {} | |
591 | } | |
592 | } | |
593 | ||
dc9dc135 XL |
594 | fn update_pass_mode(&mut self, ln: &str, revision: Option<&str>, config: &Config) { |
595 | let check_no_run = |s| { | |
596 | if config.mode != Mode::Ui && config.mode != Mode::Incremental { | |
597 | panic!("`{}` header is only supported in UI and incremental tests", s); | |
598 | } | |
dfeec247 XL |
599 | if config.mode == Mode::Incremental |
600 | && !revision.map_or(false, |r| r.starts_with("cfail")) | |
601 | && !self.revisions.iter().all(|r| r.starts_with("cfail")) | |
602 | { | |
dc9dc135 XL |
603 | panic!("`{}` header is only supported in `cfail` incremental tests", s); |
604 | } | |
605 | }; | |
606 | let pass_mode = if config.parse_name_directive(ln, "check-pass") { | |
607 | check_no_run("check-pass"); | |
608 | Some(PassMode::Check) | |
609 | } else if config.parse_name_directive(ln, "build-pass") { | |
610 | check_no_run("build-pass"); | |
611 | Some(PassMode::Build) | |
dc9dc135 | 612 | } else if config.parse_name_directive(ln, "run-pass") { |
416331ca | 613 | if config.mode != Mode::Ui { |
dc9dc135 XL |
614 | panic!("`run-pass` header is only supported in UI tests") |
615 | } | |
616 | Some(PassMode::Run) | |
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> { | |
dfeec247 | 628 | if !self.ignore_pass && self.fail_mode.is_none() && config.mode == Mode::Ui { |
dc9dc135 XL |
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 | ||
74b04a01 | 642 | fn iter_header<R: Read>(testfile: &Path, cfg: Option<&str>, rdr: R, it: &mut dyn FnMut(&str)) { |
a7813a04 | 643 | if testfile.is_dir() { |
5bcae85e | 644 | return; |
a7813a04 | 645 | } |
83c7162d | 646 | |
dfeec247 | 647 | let comment = if testfile.to_string_lossy().ends_with(".rs") { "//" } else { "#" }; |
83c7162d | 648 | |
74b04a01 XL |
649 | let mut rdr = BufReader::new(rdr); |
650 | let mut ln = String::new(); | |
651 | ||
652 | loop { | |
653 | ln.clear(); | |
654 | if rdr.read_line(&mut ln).unwrap() == 0 { | |
655 | break; | |
656 | } | |
83c7162d | 657 | |
a7813a04 XL |
658 | // Assume that any directives will be found before the first |
659 | // module or function. This doesn't seem to be an optimization | |
660 | // with a warm page cache. Maybe with a cold one. | |
a7813a04 XL |
661 | let ln = ln.trim(); |
662 | if ln.starts_with("fn") || ln.starts_with("mod") { | |
663 | return; | |
74b04a01 | 664 | } else if ln.starts_with(comment) && ln[comment.len()..].trim_start().starts_with('[') { |
a7813a04 | 665 | // A comment like `//[foo]` is specific to revision `foo` |
041b39d2 | 666 | if let Some(close_brace) = ln.find(']') { |
83c7162d | 667 | let open_brace = ln.find('[').unwrap(); |
dfeec247 | 668 | let lncfg = &ln[open_brace + 1..close_brace]; |
a7813a04 XL |
669 | let matches = match cfg { |
670 | Some(s) => s == &lncfg[..], | |
671 | None => false, | |
672 | }; | |
673 | if matches { | |
0731742a | 674 | it(ln[(close_brace + 1)..].trim_start()); |
a7813a04 XL |
675 | } |
676 | } else { | |
74b04a01 | 677 | panic!("malformed condition directive: expected `{}[foo]`, found `{}`", comment, ln) |
a7813a04 | 678 | } |
83c7162d | 679 | } else if ln.starts_with(comment) { |
dfeec247 | 680 | it(ln[comment.len()..].trim_start()); |
a7813a04 XL |
681 | } |
682 | } | |
683 | return; | |
684 | } | |
685 | ||
7cac9316 | 686 | impl Config { |
60c5eb7d XL |
687 | fn parse_should_ice(&self, line: &str) -> bool { |
688 | self.parse_name_directive(line, "should-ice") | |
689 | } | |
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 | 698 | fn parse_aux_build(&self, line: &str) -> Option<String> { |
dfeec247 | 699 | self.parse_name_value_directive(line, "aux-build").map(|r| r.trim().to_string()) |
7cac9316 | 700 | } |
a7813a04 | 701 | |
60c5eb7d XL |
702 | fn parse_aux_crate(&self, line: &str) -> Option<(String, String)> { |
703 | self.parse_name_value_directive(line, "aux-crate").map(|r| { | |
704 | let mut parts = r.trim().splitn(2, '='); | |
705 | ( | |
706 | parts.next().expect("aux-crate name").to_string(), | |
707 | parts.next().expect("aux-crate value").to_string(), | |
708 | ) | |
709 | }) | |
48663c56 XL |
710 | } |
711 | ||
7cac9316 XL |
712 | fn parse_compile_flags(&self, line: &str) -> Option<String> { |
713 | self.parse_name_value_directive(line, "compile-flags") | |
714 | } | |
a7813a04 | 715 | |
7cac9316 XL |
716 | fn parse_revisions(&self, line: &str) -> Option<Vec<String>> { |
717 | self.parse_name_value_directive(line, "revisions") | |
718 | .map(|r| r.split_whitespace().map(|t| t.to_string()).collect()) | |
719 | } | |
a7813a04 | 720 | |
7cac9316 XL |
721 | fn parse_run_flags(&self, line: &str) -> Option<String> { |
722 | self.parse_name_value_directive(line, "run-flags") | |
723 | } | |
a7813a04 | 724 | |
7cac9316 XL |
725 | fn parse_check_line(&self, line: &str) -> Option<String> { |
726 | self.parse_name_value_directive(line, "check") | |
727 | } | |
a7813a04 | 728 | |
7cac9316 XL |
729 | fn parse_force_host(&self, line: &str) -> bool { |
730 | self.parse_name_directive(line, "force-host") | |
731 | } | |
a7813a04 | 732 | |
7cac9316 XL |
733 | fn parse_build_aux_docs(&self, line: &str) -> bool { |
734 | self.parse_name_directive(line, "build-aux-docs") | |
735 | } | |
a7813a04 | 736 | |
7cac9316 XL |
737 | fn parse_check_stdout(&self, line: &str) -> bool { |
738 | self.parse_name_directive(line, "check-stdout") | |
739 | } | |
a7813a04 | 740 | |
e1599b0c XL |
741 | fn parse_check_run_results(&self, line: &str) -> bool { |
742 | self.parse_name_directive(line, "check-run-results") | |
743 | } | |
744 | ||
0bf4aa26 XL |
745 | fn parse_dont_check_compiler_stdout(&self, line: &str) -> bool { |
746 | self.parse_name_directive(line, "dont-check-compiler-stdout") | |
747 | } | |
748 | ||
749 | fn parse_dont_check_compiler_stderr(&self, line: &str) -> bool { | |
750 | self.parse_name_directive(line, "dont-check-compiler-stderr") | |
751 | } | |
752 | ||
7cac9316 XL |
753 | fn parse_no_prefer_dynamic(&self, line: &str) -> bool { |
754 | self.parse_name_directive(line, "no-prefer-dynamic") | |
755 | } | |
a7813a04 | 756 | |
7cac9316 XL |
757 | fn parse_pretty_expanded(&self, line: &str) -> bool { |
758 | self.parse_name_directive(line, "pretty-expanded") | |
759 | } | |
a7813a04 | 760 | |
7cac9316 XL |
761 | fn parse_pretty_mode(&self, line: &str) -> Option<String> { |
762 | self.parse_name_value_directive(line, "pretty-mode") | |
763 | } | |
a7813a04 | 764 | |
7cac9316 XL |
765 | fn parse_pretty_compare_only(&self, line: &str) -> bool { |
766 | self.parse_name_directive(line, "pretty-compare-only") | |
767 | } | |
9e0c209e | 768 | |
0531ce1d XL |
769 | fn parse_failure_status(&self, line: &str) -> Option<i32> { |
770 | match self.parse_name_value_directive(line, "failure-status") { | |
771 | Some(code) => code.trim().parse::<i32>().ok(), | |
772 | _ => None, | |
773 | } | |
774 | } | |
775 | ||
7cac9316 XL |
776 | fn parse_check_test_line_numbers_match(&self, line: &str) -> bool { |
777 | self.parse_name_directive(line, "check-test-line-numbers-match") | |
778 | } | |
8bb4bdeb | 779 | |
dc9dc135 XL |
780 | fn parse_ignore_pass(&self, line: &str) -> bool { |
781 | self.parse_name_directive(line, "ignore-pass") | |
83c7162d XL |
782 | } |
783 | ||
532ac7d7 | 784 | fn parse_assembly_output(&self, line: &str) -> Option<String> { |
dfeec247 | 785 | self.parse_name_value_directive(line, "assembly-output").map(|r| r.trim().to_string()) |
532ac7d7 XL |
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 { | |
dfeec247 XL |
839 | if !line.as_bytes().starts_with(prefix.as_bytes()) { |
840 | return ParsedNameDirective::NoMatch; | |
841 | } | |
842 | if line.as_bytes().get(prefix.len()) != Some(&b'-') { | |
843 | return ParsedNameDirective::NoMatch; | |
a7813a04 | 844 | } |
dfeec247 XL |
845 | |
846 | let name = line[prefix.len() + 1..].split(&[':', ' '][..]).next().unwrap(); | |
847 | ||
848 | let is_match = name == "test" || | |
849 | &self.target == name || // triple | |
850 | util::matches_os(&self.target, name) || // target | |
851 | util::matches_env(&self.target, name) || // env | |
852 | name == util::get_arch(&self.target) || // architecture | |
853 | name == util::get_pointer_width(&self.target) || // pointer width | |
854 | name == self.stage_id.split('-').next().unwrap() || // stage | |
855 | (self.target != self.host && name == "cross-compile") || | |
856 | match self.compare_mode { | |
857 | Some(CompareMode::Nll) => name == "compare-mode-nll", | |
858 | Some(CompareMode::Polonius) => name == "compare-mode-polonius", | |
859 | None => false, | |
860 | } || | |
861 | (cfg!(debug_assertions) && name == "debug") || | |
862 | match self.debugger { | |
863 | Some(Debugger::Cdb) => name == "cdb", | |
864 | Some(Debugger::Gdb) => name == "gdb", | |
865 | Some(Debugger::Lldb) => name == "lldb", | |
866 | None => false, | |
867 | }; | |
868 | ||
869 | if is_match { ParsedNameDirective::Match } else { ParsedNameDirective::NoMatch } | |
a7813a04 | 870 | } |
a7813a04 | 871 | |
2c00a5a8 XL |
872 | fn has_cfg_prefix(&self, line: &str, prefix: &str) -> bool { |
873 | // returns whether this line contains this prefix or not. For prefix | |
874 | // "ignore", returns true if line says "ignore-x86_64", "ignore-arch", | |
83c7162d | 875 | // "ignore-android" etc. |
2c00a5a8 XL |
876 | line.starts_with(prefix) && line.as_bytes().get(prefix.len()) == Some(&b'-') |
877 | } | |
878 | ||
7cac9316 XL |
879 | fn parse_name_directive(&self, line: &str, directive: &str) -> bool { |
880 | // Ensure the directive is a whole word. Do not match "ignore-x86" when | |
881 | // the line says "ignore-x86_64". | |
dfeec247 XL |
882 | line.starts_with(directive) |
883 | && match line.as_bytes().get(directive.len()) { | |
884 | None | Some(&b' ') | Some(&b':') => true, | |
885 | _ => false, | |
886 | } | |
7cac9316 | 887 | } |
a7813a04 | 888 | |
7cac9316 XL |
889 | pub fn parse_name_value_directive(&self, line: &str, directive: &str) -> Option<String> { |
890 | let colon = directive.len(); | |
891 | if line.starts_with(directive) && line.as_bytes().get(colon) == Some(&b':') { | |
94b46f34 | 892 | let value = line[(colon + 1)..].to_owned(); |
7cac9316 XL |
893 | debug!("{}: {}", directive, value); |
894 | Some(expand_variables(value, self)) | |
895 | } else { | |
896 | None | |
897 | } | |
a7813a04 | 898 | } |
abe05a73 XL |
899 | |
900 | pub fn find_rust_src_root(&self) -> Option<PathBuf> { | |
901 | let mut path = self.src_base.clone(); | |
902 | let path_postfix = Path::new("src/etc/lldb_batchmode.py"); | |
903 | ||
904 | while path.pop() { | |
905 | if path.join(&path_postfix).is_file() { | |
906 | return Some(path); | |
907 | } | |
908 | } | |
909 | ||
910 | None | |
911 | } | |
83c7162d XL |
912 | |
913 | fn parse_run_rustfix(&self, line: &str) -> bool { | |
914 | self.parse_name_directive(line, "run-rustfix") | |
915 | } | |
8faf50e0 | 916 | |
b7449926 XL |
917 | fn parse_rustfix_only_machine_applicable(&self, line: &str) -> bool { |
918 | self.parse_name_directive(line, "rustfix-only-machine-applicable") | |
919 | } | |
920 | ||
8faf50e0 XL |
921 | fn parse_edition(&self, line: &str) -> Option<String> { |
922 | self.parse_name_value_directive(line, "edition") | |
923 | } | |
a7813a04 XL |
924 | } |
925 | ||
a7813a04 | 926 | pub fn lldb_version_to_int(version_string: &str) -> isize { |
dfeec247 XL |
927 | let error_string = |
928 | format!("Encountered LLDB version string with unexpected format: {}", version_string); | |
041b39d2 | 929 | version_string.parse().expect(&error_string) |
a7813a04 | 930 | } |
7cac9316 XL |
931 | |
932 | fn expand_variables(mut value: String, config: &Config) -> String { | |
933 | const CWD: &'static str = "{{cwd}}"; | |
934 | const SRC_BASE: &'static str = "{{src-base}}"; | |
935 | const BUILD_BASE: &'static str = "{{build-base}}"; | |
936 | ||
937 | if value.contains(CWD) { | |
938 | let cwd = env::current_dir().unwrap(); | |
939 | value = value.replace(CWD, &cwd.to_string_lossy()); | |
940 | } | |
941 | ||
942 | if value.contains(SRC_BASE) { | |
943 | value = value.replace(SRC_BASE, &config.src_base.to_string_lossy()); | |
944 | } | |
945 | ||
946 | if value.contains(BUILD_BASE) { | |
947 | value = value.replace(BUILD_BASE, &config.build_base.to_string_lossy()); | |
948 | } | |
949 | ||
950 | value | |
951 | } | |
041b39d2 XL |
952 | |
953 | /// Finds the next quoted string `"..."` in `line`, and extract the content from it. Move the `line` | |
954 | /// variable after the end of the quoted string. | |
955 | /// | |
956 | /// # Examples | |
957 | /// | |
958 | /// ``` | |
959 | /// let mut s = "normalize-stderr-32bit: \"something (32 bits)\" -> \"something ($WORD bits)\"."; | |
960 | /// let first = parse_normalization_string(&mut s); | |
961 | /// assert_eq!(first, Some("something (32 bits)".to_owned())); | |
962 | /// assert_eq!(s, " -> \"something ($WORD bits)\"."); | |
963 | /// ``` | |
964 | fn parse_normalization_string(line: &mut &str) -> Option<String> { | |
965 | // FIXME support escapes in strings. | |
0731742a XL |
966 | let begin = line.find('"')? + 1; |
967 | let end = line[begin..].find('"')? + begin; | |
041b39d2 | 968 | let result = line[begin..end].to_owned(); |
94b46f34 | 969 | *line = &line[end + 1..]; |
041b39d2 XL |
970 | Some(result) |
971 | } |