mirror of
https://gitee.com/openharmony/third_party_rust_syn
synced 2024-12-17 21:47:57 +00:00
Factor out round trip helper to process dir entry
This commit is contained in:
David Tolnay
parent
94be55d332
commit
52293819dd
@ -20,6 +20,7 @@ use rustc_span::FileName;
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use std::fs::File;
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use std::io::Read;
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use std::panic;
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use std::path::Path;
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use std::process;
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use std::sync::atomic::{AtomicUsize, Ordering};
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use std::time::Instant;
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@ -53,91 +54,9 @@ fn test_round_trip() {
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.into_par_iter()
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.for_each(|entry| {
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let path = entry.path();
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if path.is_dir() {
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return;
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if !path.is_dir() {
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test(path, &failed, abort_after);
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}
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let mut file = File::open(path).unwrap();
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let mut content = String::new();
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file.read_to_string(&mut content).unwrap();
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let start = Instant::now();
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let (krate, elapsed) = match syn::parse_file(&content) {
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Ok(krate) => (krate, start.elapsed()),
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Err(msg) => {
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errorf!("=== {}: syn failed to parse\n{:?}\n", path.display(), msg);
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let prev_failed = failed.fetch_add(1, Ordering::SeqCst);
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if prev_failed + 1 >= abort_after {
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process::exit(1);
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}
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return;
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}
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};
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let back = quote!(#krate).to_string();
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let edition = repo::edition(path).parse().unwrap();
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rustc_span::with_session_globals(edition, || {
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let equal = match panic::catch_unwind(|| {
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let sess = ParseSess::new(FilePathMapping::empty());
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let before = match librustc_parse(content, &sess) {
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Ok(before) => before,
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Err(mut diagnostic) => {
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diagnostic.cancel();
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if diagnostic
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.message()
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.starts_with("file not found for module")
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{
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errorf!("=== {}: ignore\n", path.display());
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} else {
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errorf!(
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"=== {}: ignore - librustc failed to parse original content: {}\n",
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path.display(),
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diagnostic.message(),
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);
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}
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return Err(true);
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}
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};
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let after = match librustc_parse(back, &sess) {
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Ok(after) => after,
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Err(mut diagnostic) => {
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errorf!("=== {}: librustc failed to parse", path.display());
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diagnostic.emit();
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return Err(false);
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}
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};
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Ok((before, after))
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}) {
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Err(_) => {
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errorf!("=== {}: ignoring librustc panic\n", path.display());
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true
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}
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Ok(Err(equal)) => equal,
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Ok(Ok((before, after))) => if SpanlessEq::eq(&before, &after) {
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errorf!(
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"=== {}: pass in {}ms\n",
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path.display(),
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elapsed.as_secs() * 1000
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+ u64::from(elapsed.subsec_nanos()) / 1_000_000
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);
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true
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} else {
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errorf!(
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"=== {}: FAIL\nbefore: {:#?}\nafter: {:#?}\n",
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path.display(),
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before,
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after,
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);
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false
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},
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};
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if !equal {
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let prev_failed = failed.fetch_add(1, Ordering::SeqCst);
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if prev_failed + 1 >= abort_after {
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process::exit(1);
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}
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}
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});
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});
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let failed = failed.load(Ordering::SeqCst);
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@ -146,6 +65,91 @@ fn test_round_trip() {
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}
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}
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fn test(path: &Path, failed: &AtomicUsize, abort_after: usize) {
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let mut file = File::open(path).unwrap();
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let mut content = String::new();
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file.read_to_string(&mut content).unwrap();
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let start = Instant::now();
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let (krate, elapsed) = match syn::parse_file(&content) {
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Ok(krate) => (krate, start.elapsed()),
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Err(msg) => {
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errorf!("=== {}: syn failed to parse\n{:?}\n", path.display(), msg);
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let prev_failed = failed.fetch_add(1, Ordering::SeqCst);
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if prev_failed + 1 >= abort_after {
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process::exit(1);
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}
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return;
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}
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};
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let back = quote!(#krate).to_string();
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let edition = repo::edition(path).parse().unwrap();
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rustc_span::with_session_globals(edition, || {
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let equal = match panic::catch_unwind(|| {
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let sess = ParseSess::new(FilePathMapping::empty());
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let before = match librustc_parse(content, &sess) {
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Ok(before) => before,
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Err(mut diagnostic) => {
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diagnostic.cancel();
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if diagnostic
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.message()
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.starts_with("file not found for module")
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{
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errorf!("=== {}: ignore\n", path.display());
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} else {
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errorf!(
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"=== {}: ignore - librustc failed to parse original content: {}\n",
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path.display(),
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diagnostic.message(),
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);
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}
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return Err(true);
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}
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};
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let after = match librustc_parse(back, &sess) {
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Ok(after) => after,
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Err(mut diagnostic) => {
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errorf!("=== {}: librustc failed to parse", path.display());
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diagnostic.emit();
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return Err(false);
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}
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};
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Ok((before, after))
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}) {
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Err(_) => {
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errorf!("=== {}: ignoring librustc panic\n", path.display());
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true
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}
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Ok(Err(equal)) => equal,
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Ok(Ok((before, after))) => {
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if SpanlessEq::eq(&before, &after) {
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errorf!(
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"=== {}: pass in {}ms\n",
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path.display(),
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elapsed.as_secs() * 1000 + u64::from(elapsed.subsec_nanos()) / 1_000_000
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);
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true
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} else {
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errorf!(
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"=== {}: FAIL\nbefore: {:#?}\nafter: {:#?}\n",
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path.display(),
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before,
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after,
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);
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false
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}
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}
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};
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if !equal {
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let prev_failed = failed.fetch_add(1, Ordering::SeqCst);
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if prev_failed + 1 >= abort_after {
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process::exit(1);
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}
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}
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});
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}
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fn librustc_parse(content: String, sess: &ParseSess) -> PResult<ast::Crate> {
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let name = FileName::Custom("test_round_trip".to_string());
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parse::parse_crate_from_source_str(name, content, sess)
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