bjoernager/rust
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Adopt let_else across the compiler

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This performs a substitution of code following the pattern:

let <id> = if let <pat> = ... { identity } else { ... : ! };

To simplify it to:

let <pat> = ... { identity } else { ... : ! };

By adopting the let_else feature.
This commit is contained in:
est31 2021-10-16 03:45:14 +02:00
parent c1026539bd
commit 1418df5888
51 changed files with 69 additions and 137 deletions
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4
compiler/rustc_mir_transform/src/lower_slice_len.rs
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@ -17,9 +17,7 @@ impl<'tcx> MirPass<'tcx> for LowerSliceLenCalls {
pub fn lower_slice_len_calls<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
let language_items = tcx.lang_items();
let slice_len_fn_item_def_id = if let Some(slice_len_fn_item) = language_items.slice_len_fn() {
slice_len_fn_item
} else {
let Some(slice_len_fn_item_def_id) = language_items.slice_len_fn() else {
// there is no language item to compare to :)
return;
};