bjoernager/rust
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Pass ImplTraitContext as &mut to avoid the need of ImplTraitContext::reborrow later on

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This commit is contained in:
Santiago Pastorino 2022-09-02 17:38:58 -03:00
parent 3c72788461
commit 2166a36245
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GPG key ID: 8131A24E0C79EFAF
7 changed files with 125 additions and 102 deletions
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34
compiler/rustc_ast_lowering/src/expr.rs
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@ -66,7 +66,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
seg,
ParamMode::Optional,
ParenthesizedGenericArgs::Err,
ImplTraitContext::Disallowed(ImplTraitPosition::Path),
&mut ImplTraitContext::Disallowed(ImplTraitPosition::Path),
));
let receiver = self.lower_expr(receiver);
let args =
@ -89,14 +89,14 @@ impl<'hir> LoweringContext<'_, 'hir> {
}
ExprKind::Cast(ref expr, ref ty) => {
let expr = self.lower_expr(expr);
let ty =
self.lower_ty(ty, ImplTraitContext::Disallowed(ImplTraitPosition::Type));
let ty = self
.lower_ty(ty, &mut ImplTraitContext::Disallowed(ImplTraitPosition::Type));
hir::ExprKind::Cast(expr, ty)
}
ExprKind::Type(ref expr, ref ty) => {
let expr = self.lower_expr(expr);
let ty =
self.lower_ty(ty, ImplTraitContext::Disallowed(ImplTraitPosition::Type));
let ty = self
.lower_ty(ty, &mut ImplTraitContext::Disallowed(ImplTraitPosition::Type));
hir::ExprKind::Type(expr, ty)
}
ExprKind::AddrOf(k, m, ref ohs) => {
@ -219,7 +219,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
qself,
path,
ParamMode::Optional,
ImplTraitContext::Disallowed(ImplTraitPosition::Path),
&mut ImplTraitContext::Disallowed(ImplTraitPosition::Path),
);
hir::ExprKind::Path(qpath)
}
@ -253,7 +253,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
&se.qself,
&se.path,
ParamMode::Optional,
ImplTraitContext::Disallowed(ImplTraitPosition::Path),
&mut ImplTraitContext::Disallowed(ImplTraitPosition::Path),
)),
self.arena
.alloc_from_iter(se.fields.iter().map(|x| self.lower_expr_field(x))),
@ -550,12 +550,14 @@ impl<'hir> LoweringContext<'_, 'hir> {
async_gen_kind: hir::AsyncGeneratorKind,
body: impl FnOnce(&mut Self) -> hir::Expr<'hir>,
) -> hir::ExprKind<'hir> {
let output = match ret_ty {
Some(ty) => hir::FnRetTy::Return(
self.lower_ty(&ty, ImplTraitContext::Disallowed(ImplTraitPosition::AsyncBlock)),
),
None => hir::FnRetTy::DefaultReturn(self.lower_span(span)),
};
let output =
match ret_ty {
Some(ty) => hir::FnRetTy::Return(self.lower_ty(
&ty,
&mut ImplTraitContext::Disallowed(ImplTraitPosition::AsyncBlock),
)),
None => hir::FnRetTy::DefaultReturn(self.lower_span(span)),
};
// Resume argument type. We let the compiler infer this to simplify the lowering. It is
// fully constrained by `future::from_generator`.
@ -1123,7 +1125,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
qself,
path,
ParamMode::Optional,
ImplTraitContext::Disallowed(ImplTraitPosition::Path),
&mut ImplTraitContext::Disallowed(ImplTraitPosition::Path),
);
// Destructure like a tuple struct.
let tuple_struct_pat =
@ -1139,7 +1141,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
qself,
path,
ParamMode::Optional,
ImplTraitContext::Disallowed(ImplTraitPosition::Path),
&mut ImplTraitContext::Disallowed(ImplTraitPosition::Path),
);
// Destructure like a unit struct.
let unit_struct_pat = hir::PatKind::Path(qpath);
@ -1163,7 +1165,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
&se.qself,
&se.path,
ParamMode::Optional,
ImplTraitContext::Disallowed(ImplTraitPosition::Path),
&mut ImplTraitContext::Disallowed(ImplTraitPosition::Path),
);
let fields_omitted = match &se.rest {
StructRest::Base(e) => {