nordic-dev.net/rust
nordic-dev.net/rust
2
0
Fork 0
mirror of https://github.com/rust-lang/rust.git synced 2025-05-14 02:49:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

Document why some "type mismatches" exist

Browse Source
This commit is contained in:
Oli Scherer 2024-12-05 20:16:48 +00:00
parent 8df89d1cb0
commit 476074888f
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs
View File

@ -1619,6 +1619,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
ast::LitKind::Int(_, ast::LitIntType::Unsuffixed) => {
let opt_ty = expected.to_option(self).and_then(|ty| match ty.kind() {
ty::Int(_) | ty::Uint(_) => Some(ty),
// These exist to direct casts like `0x61 as char` to use
// the right integer type to cast from, instead of falling back to
// i32 due to no further constraints.
ty::Char => Some(tcx.types.u8),
ty::RawPtr(..) => Some(tcx.types.usize),
ty::FnDef(..) | ty::FnPtr(..) => Some(tcx.types.usize),