1 use rustc_data_structures::sync::Lrc;
2 use rustc_interface::interface;
3 use rustc_target::spec::TargetTriple;
5 use rustc::hir::intravisit;
6 use rustc::session::{self, config, DiagnosticOutput};
7 use rustc::util::common::ErrorReported;
9 use syntax::with_globals;
10 use syntax::source_map::SourceMap;
11 use syntax::edition::Edition;
12 use syntax::feature_gate::UnstableFeatures;
14 use std::io::{self, Write};
16 use std::path::PathBuf;
17 use std::process::{self, Command, Stdio};
19 use syntax::symbol::sym;
20 use syntax_expand::config::process_configure_mod;
21 use syntax_pos::{BytePos, DUMMY_SP, Pos, Span, FileName};
22 use tempfile::Builder as TempFileBuilder;
25 use crate::clean::Attributes;
26 use crate::config::Options;
27 use crate::html::markdown::{self, ErrorCodes, LangString, Ignore};
29 #[derive(Clone, Default)]
30 pub struct TestOptions {
31 /// Whether to disable the default `extern crate my_crate;` when creating doctests.
32 pub no_crate_inject: bool,
33 /// Whether to emit compilation warnings when compiling doctests. Setting this will suppress
34 /// the default `#![allow(unused)]`.
35 pub display_warnings: bool,
36 /// Additional crate-level attributes to add to doctests.
37 pub attrs: Vec<String>,
40 pub fn run(options: Options) -> i32 {
41 let input = config::Input::File(options.input.clone());
43 let crate_types = if options.proc_macro_crate {
44 vec![config::CrateType::ProcMacro]
46 vec![config::CrateType::Dylib]
49 let sessopts = config::Options {
50 maybe_sysroot: options.maybe_sysroot.clone(),
51 search_paths: options.libs.clone(),
53 cg: options.codegen_options.clone(),
54 externs: options.externs.clone(),
55 unstable_features: UnstableFeatures::from_environment(),
56 lint_cap: Some(::rustc::lint::Level::Allow),
57 actually_rustdoc: true,
58 debugging_opts: config::DebuggingOptions {
59 ..config::basic_debugging_options()
61 edition: options.edition,
62 target_triple: options.target.clone(),
63 ..config::Options::default()
66 let mut cfgs = options.cfgs.clone();
67 cfgs.push("doc".to_owned());
68 cfgs.push("doctest".to_owned());
69 let config = interface::Config {
71 crate_cfg: interface::parse_cfgspecs(cfgs),
77 diagnostic_output: DiagnosticOutput::Default,
79 crate_name: options.crate_name.clone(),
80 lint_caps: Default::default(),
82 override_queries: None,
83 registry: rustc_driver::diagnostics_registry(),
86 let mut test_args = options.test_args.clone();
87 let display_warnings = options.display_warnings;
89 let tests = interface::run_compiler(config, |compiler| -> Result<_, ErrorReported> {
90 let lower_to_hir = compiler.lower_to_hir()?;
92 let mut opts = scrape_test_config(lower_to_hir.peek().0.borrow().krate());
93 opts.display_warnings |= options.display_warnings;
94 let enable_per_target_ignores = options.enable_per_target_ignores;
95 let mut collector = Collector::new(
96 compiler.crate_name()?.peek().to_string(),
100 Some(compiler.source_map().clone()),
102 enable_per_target_ignores,
105 let mut global_ctxt = compiler.global_ctxt()?.take();
106 global_ctxt.enter(|tcx| {
107 let krate = tcx.hir().krate();
108 let mut hir_collector = HirCollector {
109 sess: compiler.session(),
110 collector: &mut collector,
112 codes: ErrorCodes::from(compiler.session().opts
113 .unstable_features.is_nightly_build()),
115 hir_collector.visit_testable("".to_string(), &krate.attrs, |this| {
116 intravisit::walk_crate(this, krate);
121 }).expect("compiler aborted in rustdoc!");
123 test_args.insert(0, "rustdoctest".to_string());
128 Some(testing::Options::new().display_output(display_warnings))
134 // Look for `#![doc(test(no_crate_inject))]`, used by crates in the std facade.
135 fn scrape_test_config(krate: &::rustc::hir::Crate) -> TestOptions {
136 use syntax::print::pprust;
138 let mut opts = TestOptions {
139 no_crate_inject: false,
140 display_warnings: false,
144 let test_attrs: Vec<_> = krate.attrs.iter()
145 .filter(|a| a.check_name(sym::doc))
146 .flat_map(|a| a.meta_item_list().unwrap_or_else(Vec::new))
147 .filter(|a| a.check_name(sym::test))
149 let attrs = test_attrs.iter().flat_map(|a| a.meta_item_list().unwrap_or(&[]));
152 if attr.check_name(sym::no_crate_inject) {
153 opts.no_crate_inject = true;
155 if attr.check_name(sym::attr) {
156 if let Some(l) = attr.meta_item_list() {
158 opts.attrs.push(pprust::meta_list_item_to_string(item));
167 /// Documentation test failure modes.
169 /// The test failed to compile.
171 /// The test is marked `compile_fail` but compiled successfully.
172 UnexpectedCompilePass,
173 /// The test failed to compile (as expected) but the compiler output did not contain all
174 /// expected error codes.
175 MissingErrorCodes(Vec<String>),
176 /// The test binary was unable to be executed.
177 ExecutionError(io::Error),
178 /// The test binary exited with a non-zero exit code.
180 /// This typically means an assertion in the test failed or another form of panic occurred.
181 ExecutionFailure(process::Output),
182 /// The test is marked `should_panic` but the test binary executed successfully.
194 as_test_harness: bool,
195 runtool: Option<String>,
196 runtool_args: Vec<String>,
197 target: TargetTriple,
199 mut error_codes: Vec<String>,
202 ) -> Result<(), TestFailure> {
203 let (test, line_offset) = match panic::catch_unwind(|| {
204 make_test(test, Some(cratename), as_test_harness, opts, edition)
206 Ok((test, line_offset)) => (test, line_offset),
207 Err(cause) if cause.is::<errors::FatalErrorMarker>() => {
208 // If the parser used by `make_test` panicked due to a fatal error, pass the test code
209 // through unchanged. The error will be reported during compilation.
212 Err(cause) => panic::resume_unwind(cause),
215 // FIXME(#44940): if doctests ever support path remapping, then this filename
216 // needs to be the result of `SourceMap::span_to_unmapped_path`.
217 let path = match filename {
218 FileName::Real(path) => path.clone(),
219 _ => PathBuf::from(r"doctest.rs"),
223 Temp(tempfile::TempDir),
228 fn path(&self) -> &std::path::Path {
230 DirState::Temp(t) => t.path(),
231 DirState::Perm(p) => p.as_path(),
236 let outdir = if let Some(mut path) = options.persist_doctests {
237 path.push(format!("{}_{}",
246 std::fs::create_dir_all(&path)
247 .expect("Couldn't create directory for doctest executables");
251 DirState::Temp(TempFileBuilder::new()
252 .prefix("rustdoctest")
254 .expect("rustdoc needs a tempdir"))
256 let output_file = outdir.path().join("rust_out");
258 let rustc_binary = options.test_builder.as_ref().map(|v| &**v).unwrap_or_else(|| {
259 rustc_interface::util::rustc_path().expect("found rustc")
261 let mut compiler = Command::new(&rustc_binary);
262 compiler.arg("--crate-type").arg("bin");
263 for cfg in &options.cfgs {
264 compiler.arg("--cfg").arg(&cfg);
266 if let Some(sysroot) = options.maybe_sysroot {
267 compiler.arg("--sysroot").arg(sysroot);
269 compiler.arg("--edition").arg(&edition.to_string());
270 compiler.env("UNSTABLE_RUSTDOC_TEST_PATH", path);
271 compiler.env("UNSTABLE_RUSTDOC_TEST_LINE",
272 format!("{}", line as isize - line_offset as isize));
273 compiler.arg("-o").arg(&output_file);
275 compiler.arg("--test");
277 for lib_str in &options.lib_strs {
278 compiler.arg("-L").arg(&lib_str);
280 for extern_str in &options.extern_strs {
281 compiler.arg("--extern").arg(&extern_str);
283 compiler.arg("-Ccodegen-units=1");
284 for codegen_options_str in &options.codegen_options_strs {
285 compiler.arg("-C").arg(&codegen_options_str);
287 for debugging_option_str in &options.debugging_options_strs {
288 compiler.arg("-Z").arg(&debugging_option_str);
291 compiler.arg("--emit=metadata");
293 compiler.arg("--target").arg(target.to_string());
296 compiler.stdin(Stdio::piped());
297 compiler.stderr(Stdio::piped());
299 let mut child = compiler.spawn().expect("Failed to spawn rustc process");
301 let stdin = child.stdin.as_mut().expect("Failed to open stdin");
302 stdin.write_all(test.as_bytes()).expect("could write out test sources");
304 let output = child.wait_with_output().expect("Failed to read stdout");
306 struct Bomb<'a>(&'a str);
307 impl Drop for Bomb<'_> {
309 eprint!("{}",self.0);
313 let out = str::from_utf8(&output.stderr).unwrap();
314 let _bomb = Bomb(&out);
315 match (output.status.success(), compile_fail) {
317 return Err(TestFailure::UnexpectedCompilePass);
321 if !error_codes.is_empty() {
322 error_codes.retain(|err| !out.contains(err));
324 if !error_codes.is_empty() {
325 return Err(TestFailure::MissingErrorCodes(error_codes));
330 return Err(TestFailure::CompileError);
341 if let Some(tool) = runtool {
342 cmd = Command::new(tool);
343 cmd.arg(output_file);
344 cmd.args(runtool_args);
346 cmd = Command::new(output_file);
350 Err(e) => return Err(TestFailure::ExecutionError(e)),
352 if should_panic && out.status.success() {
353 return Err(TestFailure::UnexpectedRunPass);
354 } else if !should_panic && !out.status.success() {
355 return Err(TestFailure::ExecutionFailure(out));
363 /// Transforms a test into code that can be compiled into a Rust binary, and returns the number of
364 /// lines before the test code begins.
368 /// This function uses the compiler's parser internally. The parser will panic if it encounters a
369 /// fatal error while parsing the test.
370 pub fn make_test(s: &str,
371 cratename: Option<&str>,
372 dont_insert_main: bool,
376 let (crate_attrs, everything_else, crates) = partition_source(s);
377 let everything_else = everything_else.trim();
378 let mut line_offset = 0;
379 let mut prog = String::new();
381 if opts.attrs.is_empty() && !opts.display_warnings {
382 // If there aren't any attributes supplied by #![doc(test(attr(...)))], then allow some
383 // lints that are commonly triggered in doctests. The crate-level test attributes are
384 // commonly used to make tests fail in case they trigger warnings, so having this there in
385 // that case may cause some tests to pass when they shouldn't have.
386 prog.push_str("#![allow(unused)]\n");
390 // Next, any attributes that came from the crate root via #![doc(test(attr(...)))].
391 for attr in &opts.attrs {
392 prog.push_str(&format!("#![{}]\n", attr));
396 // Now push any outer attributes from the example, assuming they
397 // are intended to be crate attributes.
398 prog.push_str(&crate_attrs);
399 prog.push_str(&crates);
401 // Uses libsyntax to parse the doctest and find if there's a main fn and the extern
402 // crate already is included.
403 let (already_has_main, already_has_extern_crate, found_macro) = with_globals(edition, || {
404 use crate::syntax::{sess::ParseSess, source_map::FilePathMapping};
405 use rustc_parse::maybe_new_parser_from_source_str;
406 use errors::emitter::EmitterWriter;
409 let filename = FileName::anon_source_code(s);
410 let source = crates + &everything_else;
412 // Any errors in parsing should also appear when the doctest is compiled for real, so just
413 // send all the errors that libsyntax emits directly into a `Sink` instead of stderr.
414 let cm = Lrc::new(SourceMap::new(FilePathMapping::empty()));
415 let emitter = EmitterWriter::new(box io::sink(), None, false, false, false, None, false);
416 // FIXME(misdreavus): pass `-Z treat-err-as-bug` to the doctest parser
417 let handler = Handler::with_emitter(false, None, box emitter);
418 let sess = ParseSess::with_span_handler(handler, cm, process_configure_mod);
420 let mut found_main = false;
421 let mut found_extern_crate = cratename.is_none();
422 let mut found_macro = false;
424 let mut parser = match maybe_new_parser_from_source_str(&sess, filename, source) {
427 for mut err in errs {
431 return (found_main, found_extern_crate, found_macro);
436 match parser.parse_item() {
439 if let ast::ItemKind::Fn(..) = item.kind {
440 if item.ident.name == sym::main {
446 if !found_extern_crate {
447 if let ast::ItemKind::ExternCrate(original) = item.kind {
448 // This code will never be reached if `cratename` is none because
449 // `found_extern_crate` is initialized to `true` if it is none.
450 let cratename = cratename.unwrap();
453 Some(name) => found_extern_crate = name.as_str() == cratename,
454 None => found_extern_crate = item.ident.as_str() == cratename,
460 if let ast::ItemKind::Mac(..) = item.kind {
465 if found_main && found_extern_crate {
477 (found_main, found_extern_crate, found_macro)
480 // If a doctest's `fn main` is being masked by a wrapper macro, the parsing loop above won't
481 // see it. In that case, run the old text-based scan to see if they at least have a main
482 // function written inside a macro invocation. See
483 // https://github.com/rust-lang/rust/issues/56898
484 let already_has_main = if found_macro && !already_has_main {
487 let comment = line.find("//");
488 if let Some(comment_begins) = comment {
489 &line[0..comment_begins]
494 .any(|code| code.contains("fn main"))
499 // Don't inject `extern crate std` because it's already injected by the
501 if !already_has_extern_crate && !opts.no_crate_inject && cratename != Some("std") {
502 if let Some(cratename) = cratename {
503 // Make sure its actually used if not included.
504 if s.contains(cratename) {
505 prog.push_str(&format!("extern crate {};\n", cratename));
511 // FIXME: This code cannot yet handle no_std test cases yet
512 if dont_insert_main || already_has_main || prog.contains("![no_std]") {
513 prog.push_str(everything_else);
515 let returns_result = everything_else.trim_end().ends_with("(())");
516 let (main_pre, main_post) = if returns_result {
517 ("fn main() { fn _inner() -> Result<(), impl core::fmt::Debug> {",
518 "}\n_inner().unwrap() }")
520 ("fn main() {\n", "\n}")
522 prog.extend([main_pre, everything_else, main_post].iter().cloned());
526 debug!("final doctest:\n{}", prog);
531 // FIXME(aburka): use a real parser to deal with multiline attributes
532 fn partition_source(s: &str) -> (String, String, String) {
533 #[derive(Copy, Clone, PartialEq)]
534 enum PartitionState {
539 let mut state = PartitionState::Attrs;
540 let mut before = String::new();
541 let mut crates = String::new();
542 let mut after = String::new();
544 for line in s.lines() {
545 let trimline = line.trim();
547 // FIXME(misdreavus): if a doc comment is placed on an extern crate statement, it will be
548 // shunted into "everything else"
550 PartitionState::Attrs => {
551 state = if trimline.starts_with("#![") ||
552 trimline.chars().all(|c| c.is_whitespace()) ||
553 (trimline.starts_with("//") && !trimline.starts_with("///"))
555 PartitionState::Attrs
556 } else if trimline.starts_with("extern crate") ||
557 trimline.starts_with("#[macro_use] extern crate")
559 PartitionState::Crates
561 PartitionState::Other
564 PartitionState::Crates => {
565 state = if trimline.starts_with("extern crate") ||
566 trimline.starts_with("#[macro_use] extern crate") ||
567 trimline.chars().all(|c| c.is_whitespace()) ||
568 (trimline.starts_with("//") && !trimline.starts_with("///"))
570 PartitionState::Crates
572 PartitionState::Other
575 PartitionState::Other => {}
579 PartitionState::Attrs => {
580 before.push_str(line);
581 before.push_str("\n");
583 PartitionState::Crates => {
584 crates.push_str(line);
585 crates.push_str("\n");
587 PartitionState::Other => {
588 after.push_str(line);
589 after.push_str("\n");
594 debug!("before:\n{}", before);
595 debug!("crates:\n{}", crates);
596 debug!("after:\n{}", after);
598 (before, after, crates)
602 fn add_test(&mut self, test: String, config: LangString, line: usize);
603 fn get_line(&self) -> usize {
606 fn register_header(&mut self, _name: &str, _level: u32) {}
609 pub struct Collector {
610 pub tests: Vec<testing::TestDescAndFn>,
612 // The name of the test displayed to the user, separated by `::`.
614 // In tests from Rust source, this is the path to the item
615 // e.g., `["std", "vec", "Vec", "push"]`.
617 // In tests from a markdown file, this is the titles of all headers (h1~h6)
618 // of the sections that contain the code block, e.g., if the markdown file is
631 // the `names` vector of that test will be `["Title", "Subtitle"]`.
636 enable_per_target_ignores: bool,
640 source_map: Option<Lrc<SourceMap>>,
641 filename: Option<PathBuf>,
645 pub fn new(cratename: String, options: Options, use_headers: bool, opts: TestOptions,
646 source_map: Option<Lrc<SourceMap>>, filename: Option<PathBuf>,
647 enable_per_target_ignores: bool) -> Collector {
653 enable_per_target_ignores,
662 fn generate_name(&self, line: usize, filename: &FileName) -> String {
663 format!("{} - {} (line {})", filename, self.names.join("::"), line)
666 pub fn set_position(&mut self, position: Span) {
667 self.position = position;
670 fn get_filename(&self) -> FileName {
671 if let Some(ref source_map) = self.source_map {
672 let filename = source_map.span_to_filename(self.position);
673 if let FileName::Real(ref filename) = filename {
674 if let Ok(cur_dir) = env::current_dir() {
675 if let Ok(path) = filename.strip_prefix(&cur_dir) {
676 return path.to_owned().into();
681 } else if let Some(ref filename) = self.filename {
682 filename.clone().into()
684 FileName::Custom("input".to_owned())
689 impl Tester for Collector {
690 fn add_test(&mut self, test: String, config: LangString, line: usize) {
691 let filename = self.get_filename();
692 let name = self.generate_name(line, &filename);
693 let cratename = self.cratename.to_string();
694 let opts = self.opts.clone();
695 let edition = config.edition.unwrap_or(self.options.edition.clone());
696 let options = self.options.clone();
697 let runtool = self.options.runtool.clone();
698 let runtool_args = self.options.runtool_args.clone();
699 let target = self.options.target.clone();
700 let target_str = target.to_string();
702 debug!("creating test {}: {}", name, test);
703 self.tests.push(testing::TestDescAndFn {
704 desc: testing::TestDesc {
705 name: testing::DynTestName(name.clone()),
706 ignore: match config.ignore {
708 Ignore::None => false,
709 Ignore::Some(ref ignores) => {
710 ignores.iter().any(|s| target_str.contains(s))
713 // compiler failures are test failures
714 should_panic: testing::ShouldPanic::No,
715 allow_fail: config.allow_fail,
716 test_type: testing::TestType::DocTest,
718 testfn: testing::DynTestFn(box move || {
737 if let Err(err) = res {
739 TestFailure::CompileError => {
740 eprint!("Couldn't compile the test.");
742 TestFailure::UnexpectedCompilePass => {
743 eprint!("Test compiled successfully, but it's marked `compile_fail`.");
745 TestFailure::UnexpectedRunPass => {
746 eprint!("Test executable succeeded, but it's marked `should_panic`.");
748 TestFailure::MissingErrorCodes(codes) => {
749 eprint!("Some expected error codes were not found: {:?}", codes);
751 TestFailure::ExecutionError(err) => {
752 eprint!("Couldn't run the test: {}", err);
753 if err.kind() == io::ErrorKind::PermissionDenied {
754 eprint!(" - maybe your tempdir is mounted with noexec?");
757 TestFailure::ExecutionFailure(out) => {
758 let reason = if let Some(code) = out.status.code() {
759 format!("exit code {}", code)
761 String::from("terminated by signal")
764 eprintln!("Test executable failed ({}).", reason);
766 // FIXME(#12309): An unfortunate side-effect of capturing the test
767 // executable's output is that the relative ordering between the test's
768 // stdout and stderr is lost. However, this is better than the
769 // alternative: if the test executable inherited the parent's I/O
770 // handles the output wouldn't be captured at all, even on success.
772 // The ordering could be preserved if the test process' stderr was
773 // redirected to stdout, but that functionality does not exist in the
774 // standard library, so it may not be portable enough.
775 let stdout = str::from_utf8(&out.stdout).unwrap_or_default();
776 let stderr = str::from_utf8(&out.stderr).unwrap_or_default();
778 if !stdout.is_empty() || !stderr.is_empty() {
781 if !stdout.is_empty() {
782 eprintln!("stdout:\n{}", stdout);
785 if !stderr.is_empty() {
786 eprintln!("stderr:\n{}", stderr);
792 panic::resume_unwind(box ());
798 fn get_line(&self) -> usize {
799 if let Some(ref source_map) = self.source_map {
800 let line = self.position.lo().to_usize();
801 let line = source_map.lookup_char_pos(BytePos(line as u32)).line;
802 if line > 0 { line - 1 } else { line }
808 fn register_header(&mut self, name: &str, level: u32) {
809 if self.use_headers {
810 // We use these headings as test names, so it's good if
811 // they're valid identifiers.
812 let name = name.chars().enumerate().map(|(i, c)| {
813 if (i == 0 && rustc_lexer::is_id_start(c)) ||
814 (i != 0 && rustc_lexer::is_id_continue(c)) {
819 }).collect::<String>();
821 // Here we try to efficiently assemble the header titles into the
822 // test name in the form of `h1::h2::h3::h4::h5::h6`.
824 // Suppose that originally `self.names` contains `[h1, h2, h3]`...
825 let level = level as usize;
826 if level <= self.names.len() {
827 // ... Consider `level == 2`. All headers in the lower levels
828 // are irrelevant in this new level. So we should reset
829 // `self.names` to contain headers until <h2>, and replace that
830 // slot with the new name: `[h1, name]`.
831 self.names.truncate(level);
832 self.names[level - 1] = name;
834 // ... On the other hand, consider `level == 5`. This means we
835 // need to extend `self.names` to contain five headers. We fill
836 // in the missing level (<h4>) with `_`. Thus `self.names` will
837 // become `[h1, h2, h3, "_", name]`.
838 if level - 1 > self.names.len() {
839 self.names.resize(level - 1, "_".to_owned());
841 self.names.push(name);
847 struct HirCollector<'a, 'hir> {
848 sess: &'a session::Session,
849 collector: &'a mut Collector,
850 map: &'a hir::map::Map<'hir>,
854 impl<'a, 'hir> HirCollector<'a, 'hir> {
855 fn visit_testable<F: FnOnce(&mut Self)>(&mut self,
857 attrs: &[ast::Attribute],
859 let mut attrs = Attributes::from_ast(self.sess.diagnostic(), attrs);
860 if let Some(ref cfg) = attrs.cfg {
861 if !cfg.matches(&self.sess.parse_sess, Some(&self.sess.features_untracked())) {
866 let has_name = !name.is_empty();
868 self.collector.names.push(name);
871 attrs.collapse_doc_comments();
872 attrs.unindent_doc_comments();
873 // The collapse-docs pass won't combine sugared/raw doc attributes, or included files with
874 // anything else, this will combine them for us.
875 if let Some(doc) = attrs.collapsed_doc_value() {
876 self.collector.set_position(attrs.span.unwrap_or(DUMMY_SP));
877 markdown::find_testable_code(&doc,
880 self.collector.enable_per_target_ignores);
886 self.collector.names.pop();
891 impl<'a, 'hir> intravisit::Visitor<'hir> for HirCollector<'a, 'hir> {
892 fn nested_visit_map<'this>(&'this mut self) -> intravisit::NestedVisitorMap<'this, 'hir> {
893 intravisit::NestedVisitorMap::All(&self.map)
896 fn visit_item(&mut self, item: &'hir hir::Item) {
897 let name = if let hir::ItemKind::Impl(.., ref ty, _) = item.kind {
898 self.map.hir_to_pretty_string(ty.hir_id)
900 item.ident.to_string()
903 self.visit_testable(name, &item.attrs, |this| {
904 intravisit::walk_item(this, item);
908 fn visit_trait_item(&mut self, item: &'hir hir::TraitItem) {
909 self.visit_testable(item.ident.to_string(), &item.attrs, |this| {
910 intravisit::walk_trait_item(this, item);
914 fn visit_impl_item(&mut self, item: &'hir hir::ImplItem) {
915 self.visit_testable(item.ident.to_string(), &item.attrs, |this| {
916 intravisit::walk_impl_item(this, item);
920 fn visit_foreign_item(&mut self, item: &'hir hir::ForeignItem) {
921 self.visit_testable(item.ident.to_string(), &item.attrs, |this| {
922 intravisit::walk_foreign_item(this, item);
926 fn visit_variant(&mut self,
927 v: &'hir hir::Variant,
928 g: &'hir hir::Generics,
929 item_id: hir::HirId) {
930 self.visit_testable(v.ident.to_string(), &v.attrs, |this| {
931 intravisit::walk_variant(this, v, g, item_id);
935 fn visit_struct_field(&mut self, f: &'hir hir::StructField) {
936 self.visit_testable(f.ident.to_string(), &f.attrs, |this| {
937 intravisit::walk_struct_field(this, f);
941 fn visit_macro_def(&mut self, macro_def: &'hir hir::MacroDef) {
942 self.visit_testable(macro_def.name.to_string(), ¯o_def.attrs, |_| ());