bjoernager/rust
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let-else: add hir::Let and type check it like a hir::Local

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unify typeck of hir::Local and hir::Let
remove extraneous pub(crate/super)
This commit is contained in:
Cormac Relf 2021-10-13 16:39:06 +11:00
parent a0a4c7d1e4
commit af2f0e6b7c
13 changed files with 160 additions and 92 deletions
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14
compiler/rustc_ast_lowering/src/expr.rs
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@ -92,11 +92,15 @@ impl<'hir> LoweringContext<'_, 'hir> {
let ohs = self.lower_expr(ohs);
hir::ExprKind::AddrOf(k, m, ohs)
}
ExprKind::Let(ref pat, ref scrutinee, span) => hir::ExprKind::Let(
self.lower_pat(pat),
self.lower_expr(scrutinee),
self.lower_span(span),
),
ExprKind::Let(ref pat, ref scrutinee, span) => {
hir::ExprKind::Let(self.arena.alloc(hir::Let {
hir_id: self.next_id(),
span: self.lower_span(span),
pat: self.lower_pat(pat),
ty: None,
init: self.lower_expr(scrutinee),
}))
}
ExprKind::If(ref cond, ref then, ref else_opt) => {
self.lower_expr_if(cond, then, else_opt.as_deref())
}