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Rollup merge of #82215 - TaKO8Ki:replace-if-let-while-let, r=varkor

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Replace if-let and while-let with `if let` and `while let`

This pull request replaces if-let and while-let with `if let` and `while let`.

closes https://github.com/rust-lang/rust/issues/82205
This commit is contained in:
Dylan DPC 2021-02-18 16:57:37 +01:00 • committed by GitHub
commit b3d3251271
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18 changed files with 45 additions and 45 deletions
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6
compiler/rustc_mir_build/src/thir/pattern/check_match.rs
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@ -368,9 +368,9 @@ fn unreachable_pattern(tcx: TyCtxt<'_>, span: Span, id: HirId, catchall: Option<
fn irrefutable_let_pattern(tcx: TyCtxt<'_>, span: Span, id: HirId, source: hir::MatchSource) {
tcx.struct_span_lint_hir(IRREFUTABLE_LET_PATTERNS, id, span, |lint| {
let msg = match source {
hir::MatchSource::IfLetDesugar { .. } => "irrefutable if-let pattern",
hir::MatchSource::WhileLetDesugar => "irrefutable while-let pattern",
hir::MatchSource::IfLetGuardDesugar => "irrefutable if-let guard",
hir::MatchSource::IfLetDesugar { .. } => "irrefutable `if let` pattern",
hir::MatchSource::WhileLetDesugar => "irrefutable `while let` pattern",
hir::MatchSource::IfLetGuardDesugar => "irrefutable `if let` guard",
_ => bug!(),
};
lint.build(msg).emit()