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Revise error message regarding metadata version

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Co-authored-by: Laurențiu Nicola <lnicola@users.noreply.github.com>
This commit is contained in:
Jay Somedon 2020-12-24 23:00:59 +08:00 committed by Edwin Cheng
parent a8f7326ee5
commit 0669abda4a
1 changed files with 6 additions and 10 deletions
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16
crates/proc_macro_api/src/lib.rs
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@ -76,10 +76,7 @@ pub fn extern_process(
args: impl IntoIterator<Item = impl AsRef<OsStr>>,
) -> io::Result<ProcMacroClient> {
let (thread, process) = ProcMacroProcessSrv::run(process_path, args)?;
Ok(ProcMacroClient {
process: Arc::new(process),
thread,
})
Ok(ProcMacroClient { process: Arc::new(process), thread })
}
pub fn by_dylib_path(&self, dylib_path: &Path) -> Vec<ProcMacro> {
@ -106,11 +103,7 @@ pub fn by_dylib_path(&self, dylib_path: &Path) -> Vec<ProcMacro> {
dylib_path: dylib_path.into(),
});
ProcMacro {
name,
kind,
expander,
}
ProcMacro { name, kind, expander }
})
.collect()
}
@ -156,7 +149,10 @@ fn read_version(&self, dylib_path: &Path) -> io::Result<String> {
const EXPECTED_HEADER: [u8; 8] = [b'r', b'u', b's', b't', 0, 0, 0, 5];
// check if header is valid
if header != EXPECTED_HEADER {
return Err(io::Error::new(io::ErrorKind::InvalidData, format!(".rustc section should start with header {:?}; header {:?} is actually presented.",EXPECTED_HEADER ,header)));
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("only metadata version 5 is supported, section header was: {:?}", header),
));
}
let snappy_portion = &dot_rustc[8..];