bjoernager/rust
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Introduce hir::ExprKind::Let - Take 2

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This commit is contained in:
Caio 2021-08-08 11:49:13 -03:00
parent 2d9f2eae84
commit 6aa9937a76
128 changed files with 2080 additions and 2196 deletions
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9
compiler/rustc_passes/src/check_const.rs
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@ -48,11 +48,8 @@ impl NonConstExpr {
Self::Match(TryDesugar) => &[sym::const_try],
Self::Match(IfLetGuardDesugar) => bug!("`if let` guard outside a `match` expression"),
// All other expressions are allowed.
Self::Loop(Loop | While | WhileLet)
| Self::Match(WhileDesugar | WhileLetDesugar | Normal | IfLetDesugar { .. }) => &[],
Self::Loop(Loop | While) | Self::Match(Normal) => &[],
};
Some(gates)
@ -277,9 +274,7 @@ impl<'tcx> Visitor<'tcx> for CheckConstVisitor<'tcx> {
hir::ExprKind::Match(_, _, source) => {
let non_const_expr = match source {
// These are handled by `ExprKind::Loop` above.
hir::MatchSource::WhileDesugar
| hir::MatchSource::WhileLetDesugar
| hir::MatchSource::ForLoopDesugar => None,
hir::MatchSource::ForLoopDesugar => None,
_ => Some(NonConstExpr::Match(*source)),
};