language-servers/rust-analyzer
1
0
Fork 0
mirror of https://github.com/rust-lang/rust-analyzer.git synced 2025-10-01 14:21:44 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

Fix panic in displaying const trait objects

Browse source
This commit is contained in:
hkalbasi 2023-06-10 02:10:52 +03:30
parent 2796851961
commit 6fbf6ef514
3 changed files with 52 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

16
crates/hir-ty/src/display.rs
View file

@ -536,6 +536,22 @@ fn render_const_scalar(
}
f.write_str("]")
}
TyKind::Dyn(_) => {
let addr = usize::from_le_bytes(b[0..b.len() / 2].try_into().unwrap());
let ty_id = usize::from_le_bytes(b[b.len() / 2..].try_into().unwrap());
let Ok(t) = memory_map.vtable.ty(ty_id) else {
return f.write_str("<ty-missing-in-vtable-map>");
};
let Ok(layout) = f.db.layout_of_ty(t.clone(), krate) else {
return f.write_str("<layout-error>");
};
let size = layout.size.bytes_usize();
let Some(bytes) = memory_map.get(addr, size) else {
return f.write_str("<ref-data-not-available>");
};
f.write_str("&")?;
render_const_scalar(f, bytes, memory_map, t)
}
_ => {
let addr = usize::from_le_bytes(b.try_into().unwrap());
let Ok(layout) = f.db.layout_of_ty(t.clone(), krate) else {