Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Revert #125915 on beta #128760

Closed
wants to merge 1 commit into from
Closed

Revert #125915 on beta #128760

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
23 changes: 10 additions & 13 deletions compiler/rustc_ast_lowering/src/asm.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -187,7 +187,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
.emit();
}
hir::InlineAsmOperand::Const {
anon_const: self.lower_anon_const_to_anon_const(anon_const),
anon_const: self.lower_anon_const(anon_const),
}
}
InlineAsmOperand::Sym { sym } => {
Expand Down Expand Up @@ -222,21 +222,18 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
};

// Wrap the expression in an AnonConst.
let parent_def_id = self.current_def_id_parent;
let parent_def_id = self.current_hir_id_owner;
let node_id = self.next_node_id();
// HACK(min_generic_const_args): see lower_anon_const
if !expr.is_potential_trivial_const_arg() {
self.create_def(
parent_def_id,
node_id,
kw::Empty,
DefKind::AnonConst,
*op_sp,
);
}
self.create_def(
parent_def_id.def_id,
node_id,
kw::Empty,
DefKind::AnonConst,
*op_sp,
);
let anon_const = AnonConst { id: node_id, value: P(expr) };
hir::InlineAsmOperand::SymFn {
anon_const: self.lower_anon_const_to_anon_const(&anon_const),
anon_const: self.lower_anon_const(&anon_const),
}
}
}
Expand Down
135 changes: 62 additions & 73 deletions compiler/rustc_ast_lowering/src/expr.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -75,15 +75,10 @@ impl<'hir> LoweringContext<'_, 'hir> {
let kind = match &e.kind {
ExprKind::Array(exprs) => hir::ExprKind::Array(self.lower_exprs(exprs)),
ExprKind::ConstBlock(c) => {
let c = self.with_new_scopes(c.value.span, |this| {
let def_id = this.local_def_id(c.id);
hir::ConstBlock {
def_id,
hir_id: this.lower_node_id(c.id),
body: this.with_def_id_parent(def_id, |this| {
this.lower_const_body(c.value.span, Some(&c.value))
}),
}
let c = self.with_new_scopes(c.value.span, |this| hir::ConstBlock {
def_id: this.local_def_id(c.id),
hir_id: this.lower_node_id(c.id),
body: this.lower_const_body(c.value.span, Some(&c.value)),
});
hir::ExprKind::ConstBlock(c)
}
Expand Down Expand Up @@ -382,14 +377,17 @@ impl<'hir> LoweringContext<'_, 'hir> {
let mut generic_args = ThinVec::new();
for (idx, arg) in args.into_iter().enumerate() {
if legacy_args_idx.contains(&idx) {
let parent_def_id = self.current_def_id_parent;
let parent_def_id = self.current_hir_id_owner;
let node_id = self.next_node_id();

// HACK(min_generic_const_args): see lower_anon_const
if !arg.is_potential_trivial_const_arg() {
// Add a definition for the in-band const def.
self.create_def(parent_def_id, node_id, kw::Empty, DefKind::AnonConst, f.span);
}
// Add a definition for the in-band const def.
self.create_def(
parent_def_id.def_id,
node_id,
kw::Empty,
DefKind::AnonConst,
f.span,
);

let anon_const = AnonConst { id: node_id, value: arg };
generic_args.push(AngleBracketedArg::Arg(GenericArg::Const(anon_const)));
Expand Down Expand Up @@ -624,7 +622,6 @@ impl<'hir> LoweringContext<'_, 'hir> {
coroutine_source: hir::CoroutineSource,
body: impl FnOnce(&mut Self) -> hir::Expr<'hir>,
) -> hir::ExprKind<'hir> {
let closure_def_id = self.local_def_id(closure_node_id);
let coroutine_kind = hir::CoroutineKind::Desugared(desugaring_kind, coroutine_source);

// The `async` desugaring takes a resume argument and maintains a `task_context`,
Expand Down Expand Up @@ -675,24 +672,22 @@ impl<'hir> LoweringContext<'_, 'hir> {
lifetime_elision_allowed: false,
});

let body = self.with_def_id_parent(closure_def_id, move |this| {
this.lower_body(move |this| {
this.coroutine_kind = Some(coroutine_kind);
let body = self.lower_body(move |this| {
this.coroutine_kind = Some(coroutine_kind);

let old_ctx = this.task_context;
if task_context.is_some() {
this.task_context = task_context;
}
let res = body(this);
this.task_context = old_ctx;
let old_ctx = this.task_context;
if task_context.is_some() {
this.task_context = task_context;
}
let res = body(this);
this.task_context = old_ctx;

(params, res)
})
(params, res)
});

// `static |<_task_context?>| -> <return_ty> { <body> }`:
hir::ExprKind::Closure(self.arena.alloc(hir::Closure {
def_id: closure_def_id,
def_id: self.local_def_id(closure_node_id),
binder: hir::ClosureBinder::Default,
capture_clause,
bound_generic_params: &[],
Expand Down Expand Up @@ -971,38 +966,35 @@ impl<'hir> LoweringContext<'_, 'hir> {
fn_decl_span: Span,
fn_arg_span: Span,
) -> hir::ExprKind<'hir> {
let closure_def_id = self.local_def_id(closure_id);
let (binder_clause, generic_params) = self.lower_closure_binder(binder);

let (body_id, closure_kind) = self.with_new_scopes(fn_decl_span, move |this| {
this.with_def_id_parent(closure_def_id, move |this| {
let mut coroutine_kind = if this
.attrs
.get(&closure_hir_id.local_id)
.is_some_and(|attrs| attrs.iter().any(|attr| attr.has_name(sym::coroutine)))
{
Some(hir::CoroutineKind::Coroutine(Movability::Movable))
} else {
None
};
let body_id = this.lower_fn_body(decl, |this| {
this.coroutine_kind = coroutine_kind;
let e = this.lower_expr_mut(body);
coroutine_kind = this.coroutine_kind;
e
});
let coroutine_option =
this.closure_movability_for_fn(decl, fn_decl_span, coroutine_kind, movability);
(body_id, coroutine_option)
})
let mut coroutine_kind = if this
.attrs
.get(&closure_hir_id.local_id)
.is_some_and(|attrs| attrs.iter().any(|attr| attr.has_name(sym::coroutine)))
{
Some(hir::CoroutineKind::Coroutine(Movability::Movable))
} else {
None
};
let body_id = this.lower_fn_body(decl, |this| {
this.coroutine_kind = coroutine_kind;
let e = this.lower_expr_mut(body);
coroutine_kind = this.coroutine_kind;
e
});
let coroutine_option =
this.closure_movability_for_fn(decl, fn_decl_span, coroutine_kind, movability);
(body_id, coroutine_option)
});

let bound_generic_params = self.lower_lifetime_binder(closure_id, generic_params);
// Lower outside new scope to preserve `is_in_loop_condition`.
let fn_decl = self.lower_fn_decl(decl, closure_id, fn_decl_span, FnDeclKind::Closure, None);

let c = self.arena.alloc(hir::Closure {
def_id: closure_def_id,
def_id: self.local_def_id(closure_id),
binder: binder_clause,
capture_clause,
bound_generic_params,
Expand Down Expand Up @@ -1074,7 +1066,6 @@ impl<'hir> LoweringContext<'_, 'hir> {
fn_decl_span: Span,
fn_arg_span: Span,
) -> hir::ExprKind<'hir> {
let closure_def_id = self.local_def_id(closure_id);
let (binder_clause, generic_params) = self.lower_closure_binder(binder);

assert_matches!(
Expand All @@ -1084,29 +1075,27 @@ impl<'hir> LoweringContext<'_, 'hir> {
);

let body = self.with_new_scopes(fn_decl_span, |this| {
this.with_def_id_parent(closure_def_id, |this| {
let inner_decl =
FnDecl { inputs: decl.inputs.clone(), output: FnRetTy::Default(fn_decl_span) };

// Transform `async |x: u8| -> X { ... }` into
// `|x: u8| || -> X { ... }`.
let body_id = this.lower_body(|this| {
let (parameters, expr) = this.lower_coroutine_body_with_moved_arguments(
&inner_decl,
|this| this.with_new_scopes(fn_decl_span, |this| this.lower_expr_mut(body)),
fn_decl_span,
body.span,
coroutine_kind,
hir::CoroutineSource::Closure,
);
let inner_decl =
FnDecl { inputs: decl.inputs.clone(), output: FnRetTy::Default(fn_decl_span) };

// Transform `async |x: u8| -> X { ... }` into
// `|x: u8| || -> X { ... }`.
let body_id = this.lower_body(|this| {
let (parameters, expr) = this.lower_coroutine_body_with_moved_arguments(
&inner_decl,
|this| this.with_new_scopes(fn_decl_span, |this| this.lower_expr_mut(body)),
fn_decl_span,
body.span,
coroutine_kind,
hir::CoroutineSource::Closure,
);

let hir_id = this.lower_node_id(coroutine_kind.closure_id());
this.maybe_forward_track_caller(body.span, closure_hir_id, hir_id);
let hir_id = this.lower_node_id(coroutine_kind.closure_id());
this.maybe_forward_track_caller(body.span, closure_hir_id, hir_id);

(parameters, expr)
});
body_id
})
(parameters, expr)
});
body_id
});

let bound_generic_params = self.lower_lifetime_binder(closure_id, generic_params);
Expand All @@ -1117,7 +1106,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
self.lower_fn_decl(&decl, closure_id, fn_decl_span, FnDeclKind::Closure, None);

let c = self.arena.alloc(hir::Closure {
def_id: closure_def_id,
def_id: self.local_def_id(closure_id),
binder: binder_clause,
capture_clause,
bound_generic_params,
Expand Down
12 changes: 1 addition & 11 deletions compiler/rustc_ast_lowering/src/index.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -181,7 +181,7 @@ impl<'a, 'hir> Visitor<'hir> for NodeCollector<'a, 'hir> {
intravisit::walk_generic_param(self, param);
}

fn visit_const_param_default(&mut self, param: HirId, ct: &'hir ConstArg<'hir>) {
fn visit_const_param_default(&mut self, param: HirId, ct: &'hir AnonConst) {
self.with_parent(param, |this| {
intravisit::walk_const_param_default(this, ct);
})
Expand Down Expand Up @@ -229,7 +229,6 @@ impl<'a, 'hir> Visitor<'hir> for NodeCollector<'a, 'hir> {
}

fn visit_anon_const(&mut self, constant: &'hir AnonConst) {
// FIXME: use real span?
self.insert(DUMMY_SP, constant.hir_id, Node::AnonConst(constant));

self.with_parent(constant.hir_id, |this| {
Expand All @@ -245,15 +244,6 @@ impl<'a, 'hir> Visitor<'hir> for NodeCollector<'a, 'hir> {
});
}

fn visit_const_arg(&mut self, const_arg: &'hir ConstArg<'hir>) {
// FIXME: use real span?
self.insert(DUMMY_SP, const_arg.hir_id, Node::ConstArg(const_arg));

self.with_parent(const_arg.hir_id, |this| {
intravisit::walk_const_arg(this, const_arg);
});
}

fn visit_expr(&mut self, expr: &'hir Expr<'hir>) {
self.insert(expr.span, expr.hir_id, Node::Expr(expr));

Expand Down
29 changes: 10 additions & 19 deletions compiler/rustc_ast_lowering/src/item.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -61,10 +61,7 @@ impl<'a, 'hir> ItemLowerer<'a, 'hir> {

for (def_id, info) in lctx.children {
let owner = self.owners.ensure_contains_elem(def_id, || hir::MaybeOwner::Phantom);
debug_assert!(
matches!(owner, hir::MaybeOwner::Phantom),
"duplicate copy of {def_id:?} in lctx.children"
);
debug_assert!(matches!(owner, hir::MaybeOwner::Phantom));
*owner = info;
}
}
Expand Down Expand Up @@ -716,7 +713,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
hir_id,
def_id: self.local_def_id(v.id),
data: self.lower_variant_data(hir_id, &v.data),
disr_expr: v.disr_expr.as_ref().map(|e| self.lower_anon_const_to_anon_const(e)),
disr_expr: v.disr_expr.as_ref().map(|e| self.lower_anon_const(e)),
ident: self.lower_ident(v.ident),
span: self.lower_span(v.span),
}
Expand Down Expand Up @@ -1604,15 +1601,15 @@ impl<'hir> LoweringContext<'_, 'hir> {

if let Some((span, hir_id, def_id)) = host_param_parts {
let const_node_id = self.next_node_id();
let anon_const_did =
let anon_const =
self.create_def(def_id, const_node_id, kw::Empty, DefKind::AnonConst, span);

let const_id = self.next_id();
let const_expr_id = self.next_id();
let bool_id = self.next_id();

self.children.push((def_id, hir::MaybeOwner::NonOwner(hir_id)));
self.children.push((anon_const_did, hir::MaybeOwner::NonOwner(const_id)));
self.children.push((anon_const, hir::MaybeOwner::NonOwner(const_id)));

let const_body = self.lower_body(|this| {
(
Expand All @@ -1627,17 +1624,6 @@ impl<'hir> LoweringContext<'_, 'hir> {
)
});

let default_ac = self.arena.alloc(hir::AnonConst {
def_id: anon_const_did,
hir_id: const_id,
body: const_body,
span,
});
let default_ct = self.arena.alloc(hir::ConstArg {
hir_id: self.next_id(),
kind: hir::ConstArgKind::Anon(default_ac),
is_desugared_from_effects: false,
});
let param = hir::GenericParam {
def_id,
hir_id,
Expand All @@ -1662,7 +1648,12 @@ impl<'hir> LoweringContext<'_, 'hir> {
)),
)),
// FIXME(effects) we might not need a default.
default: Some(default_ct),
default: Some(self.arena.alloc(hir::AnonConst {
def_id: anon_const,
hir_id: const_id,
body: const_body,
span,
})),
is_host_effect: true,
synthetic: true,
},
Expand Down
Loading
Loading