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flush and assert when counting zero bytes

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This commit is contained in:
Yoshiki Matsuda 2022-05-08 14:19:04 +09:00
parent c57d778872
commit 7eb64b4901
1 changed files with 5 additions and 1 deletions
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6
compiler/rustc_metadata/src/rmeta/encoder.rs
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@ -733,14 +733,18 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> {
assert_eq!(total_bytes, computed_total_bytes);
if tcx.sess.meta_stats() {
self.opaque.flush().unwrap();
let pos_before_rewind = self.opaque.file().stream_position().unwrap();
let mut zero_bytes = 0;
self.opaque.file().seek(std::io::SeekFrom::Start(0)).unwrap();
self.opaque.file().rewind().unwrap();
let file = std::io::BufReader::new(self.opaque.file());
for e in file.bytes() {
if e.unwrap() == 0 {
zero_bytes += 1;
}
}
assert_eq!(self.opaque.file().stream_position().unwrap(), pos_before_rewind);
let perc = |bytes| (bytes * 100) as f64 / total_bytes as f64;
let p = |label, bytes| {