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Add v7 metadata support to rust-analyzer #14153

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Merged
merged 2 commits into from
Feb 14, 2023
Merged

Add v7 metadata support to rust-analyzer #14153

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bc81d58
Add v7 support to rust-analyzer
CraftSpider Feb 14, 2023
853f047
Cargo fmt
CraftSpider Feb 14, 2023
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13 changes: 8 additions & 5 deletions crates/proc-macro-api/src/version.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -120,17 +120,20 @@ pub fn read_version(dylib_path: &AbsPath) -> io::Result<String> {
let version = u32::from_be_bytes([dot_rustc[4], dot_rustc[5], dot_rustc[6], dot_rustc[7]]);
// Last supported version is:
// https://github.com/rust-lang/rust/commit/0696e79f2740ad89309269b460579e548a5cd632
match version {
5 | 6 => {}
let snappy_portion = match version {
5 | 6 => &dot_rustc[8..],
7 => {
let len_bytes = &dot_rustc[8..12];
let data_len = u32::from_be_bytes(len_bytes.try_into().unwrap()) as usize;
&dot_rustc[12..data_len + 12]
}
_ => {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
format!("unsupported metadata version {version}"),
));
}
}

let snappy_portion = &dot_rustc[8..];
};

let mut snappy_decoder = SnapDecoder::new(snappy_portion);

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