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avoid holding the temp_dir for empty metadata file

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This commit is contained in:
Yoshiki Matsuda 2022-06-06 23:13:54 +09:00
parent 3e309350d2
commit ea0e0f4e13
1 changed files with 1 additions and 1 deletions
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2
compiler/rustc_metadata/src/rmeta/encoder.rs
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@ -2158,7 +2158,7 @@ impl EncodedMetadata {
let file = std::fs::File::open(&path)?;
let file_metadata = file.metadata()?;
if file_metadata.len() == 0 {
return Ok(Self { mmap: None, _temp_dir: temp_dir });
return Ok(Self { mmap: None, _temp_dir: None });
}
let mmap = unsafe { Some(Mmap::map(file)?) };
Ok(Self { mmap, _temp_dir: temp_dir })