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Auto merge of rust-lang#132460 - lcnr:questionable-uwu, r=<try>
`TypingMode` sure seems like a good idea ## `infcx.typing_env` while defining opaque types I don't know how'll be able to correctly handle opaque types when using something taking a `TypingEnv` while defining opaque types. To correctly handle the opaques we need to be able to pass in the current `opaque_type_storage` and return constraints, i.e. we need to use a proper canonical query. We should migrate all the queries used during HIR typeck and borrowck where this matters to proper canonical queries. This is ## `layout_of` and `Reveal::All` We convert the `ParamEnv` to `Reveal::All` right at the start of the `layout_of` query, so I've changed callers of `layout_of` to already use a post analysis `TypingEnv` when encountering it. https://github.com/rust-lang/rust/blob/ca87b535a05097df6abbe2a031b057de2cefac5b/compiler/rustc_ty_utils/src/layout.rs#L51 r? `@ghost`
2 parents 209799f + 1d78b92 commit dcde587

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‎compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs‎

Lines changed: 8 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -3833,11 +3833,16 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> {
38333833
if tcx.is_diagnostic_item(sym::deref_method, method_did) {
38343834
let deref_target =
38353835
tcx.get_diagnostic_item(sym::deref_target).and_then(|deref_target| {
3836-
Instance::try_resolve(tcx, self.param_env, deref_target, method_args)
3837-
.transpose()
3836+
Instance::try_resolve(
3837+
tcx,
3838+
self.infcx.typing_env(self.param_env),
3839+
deref_target,
3840+
method_args,
3841+
)
3842+
.transpose()
38383843
});
38393844
if let Some(Ok(instance)) = deref_target {
3840-
let deref_target_ty = instance.ty(tcx, self.param_env);
3845+
let deref_target_ty = instance.ty(tcx, self.infcx.typing_env(self.param_env));
38413846
err.note(format!("borrow occurs due to deref coercion to `{deref_target_ty}`"));
38423847
err.span_note(tcx.def_span(instance.def_id()), "deref defined here");
38433848
}

‎compiler/rustc_borrowck/src/diagnostics/mod.rs‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -864,7 +864,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> {
864864

865865
let kind = call_kind(
866866
self.infcx.tcx,
867-
self.param_env,
867+
self.infcx.typing_env(self.param_env),
868868
method_did,
869869
method_args,
870870
*fn_span,

‎compiler/rustc_borrowck/src/diagnostics/region_errors.rs‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -952,7 +952,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> {
952952

953953
if let Ok(Some(instance)) = ty::Instance::try_resolve(
954954
tcx,
955-
self.param_env,
955+
self.infcx.typing_env(self.param_env),
956956
*fn_did,
957957
self.infcx.resolve_vars_if_possible(args),
958958
) {

‎compiler/rustc_borrowck/src/type_check/mod.rs‎

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1527,7 +1527,9 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
15271527
// The signature in this call can reference region variables,
15281528
// so erase them before calling a query.
15291529
let output_ty = self.tcx().erase_regions(sig.output());
1530-
if !output_ty.is_privately_uninhabited(self.tcx(), self.param_env) {
1530+
if !output_ty
1531+
.is_privately_uninhabited(self.tcx(), self.infcx.typing_env(self.param_env))
1532+
{
15311533
span_mirbug!(self, term, "call to converging function {:?} w/o dest", sig);
15321534
}
15331535
}

‎compiler/rustc_codegen_cranelift/src/abi/mod.rs‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -376,7 +376,7 @@ pub(crate) fn codegen_terminator_call<'tcx>(
376376
let instance = if let ty::FnDef(def_id, fn_args) = *func.layout().ty.kind() {
377377
let instance = ty::Instance::expect_resolve(
378378
fx.tcx,
379-
ty::ParamEnv::reveal_all(),
379+
ty::TypingEnv::fully_monomorphized(),
380380
def_id,
381381
fn_args,
382382
source_info.span,

‎compiler/rustc_codegen_cranelift/src/base.rs‎

Lines changed: 7 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -666,7 +666,7 @@ fn codegen_stmt<'tcx>(
666666
let func_ref = fx.get_function_ref(
667667
Instance::resolve_for_fn_ptr(
668668
fx.tcx,
669-
ParamEnv::reveal_all(),
669+
ty::TypingEnv::fully_monomorphized(),
670670
def_id,
671671
args,
672672
)
@@ -841,14 +841,18 @@ fn codegen_stmt<'tcx>(
841841
lval.write_cvalue(fx, CValue::by_val(operand, box_layout));
842842
}
843843
Rvalue::NullaryOp(ref null_op, ty) => {
844-
assert!(lval.layout().ty.is_sized(fx.tcx, ParamEnv::reveal_all()));
844+
assert!(lval.layout().ty.is_sized(fx.tcx, ty::ParamEnv::reveal_all()));
845845
let layout = fx.layout_of(fx.monomorphize(ty));
846846
let val = match null_op {
847847
NullOp::SizeOf => layout.size.bytes(),
848848
NullOp::AlignOf => layout.align.abi.bytes(),
849849
NullOp::OffsetOf(fields) => fx
850850
.tcx
851-
.offset_of_subfield(ParamEnv::reveal_all(), layout, fields.iter())
851+
.offset_of_subfield(
852+
ty::TypingEnv::fully_monomorphized(),
853+
layout,
854+
fields.iter(),
855+
)
852856
.bytes(),
853857
NullOp::UbChecks => {
854858
let val = fx.tcx.sess.ub_checks();

‎compiler/rustc_codegen_cranelift/src/common.rs‎

Lines changed: 9 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -103,11 +103,11 @@ fn clif_pair_type_from_ty<'tcx>(
103103

104104
/// Is a pointer to this type a wide ptr?
105105
pub(crate) fn has_ptr_meta<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> bool {
106-
if ty.is_sized(tcx, ParamEnv::reveal_all()) {
106+
if ty.is_sized(tcx, ty::ParamEnv::reveal_all()) {
107107
return false;
108108
}
109109

110-
let tail = tcx.struct_tail_for_codegen(ty, ParamEnv::reveal_all());
110+
let tail = tcx.struct_tail_for_codegen(ty, ty::TypingEnv::fully_monomorphized());
111111
match tail.kind() {
112112
ty::Foreign(..) => false,
113113
ty::Str | ty::Slice(..) | ty::Dynamic(..) => true,
@@ -339,9 +339,9 @@ impl<'tcx> rustc_target::abi::HasDataLayout for FunctionCx<'_, '_, 'tcx> {
339339
}
340340
}
341341

342-
impl<'tcx> layout::HasParamEnv<'tcx> for FunctionCx<'_, '_, 'tcx> {
343-
fn param_env(&self) -> ParamEnv<'tcx> {
344-
ParamEnv::reveal_all()
342+
impl<'tcx> layout::HasTypingEnv<'tcx> for FunctionCx<'_, '_, 'tcx> {
343+
fn typing_env(&self) -> ty::TypingEnv<'tcx> {
344+
ty::TypingEnv::fully_monomorphized()
345345
}
346346
}
347347

@@ -358,7 +358,7 @@ impl<'tcx> FunctionCx<'_, '_, 'tcx> {
358358
{
359359
self.instance.instantiate_mir_and_normalize_erasing_regions(
360360
self.tcx,
361-
ty::ParamEnv::reveal_all(),
361+
ty::TypingEnv::fully_monomorphized(),
362362
ty::EarlyBinder::bind(value),
363363
)
364364
}
@@ -497,9 +497,9 @@ impl<'tcx> rustc_target::abi::HasDataLayout for RevealAllLayoutCx<'tcx> {
497497
}
498498
}
499499

500-
impl<'tcx> layout::HasParamEnv<'tcx> for RevealAllLayoutCx<'tcx> {
501-
fn param_env(&self) -> ParamEnv<'tcx> {
502-
ParamEnv::reveal_all()
500+
impl<'tcx> layout::HasTypingEnv<'tcx> for RevealAllLayoutCx<'tcx> {
501+
fn typing_env(&self) -> ty::TypingEnv<'tcx> {
502+
ty::TypingEnv::fully_monomorphized()
503503
}
504504
}
505505

‎compiler/rustc_codegen_cranelift/src/constant.rs‎

Lines changed: 8 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -78,7 +78,7 @@ pub(crate) fn eval_mir_constant<'tcx>(
7878
let cv = fx.monomorphize(constant.const_);
7979
// This cannot fail because we checked all required_consts in advance.
8080
let val = cv
81-
.eval(fx.tcx, ty::ParamEnv::reveal_all(), constant.span)
81+
.eval(fx.tcx, ty::TypingEnv::fully_monomorphized(), constant.span)
8282
.expect("erroneous constant missed by mono item collection");
8383
(val, cv.ty())
8484
}
@@ -265,8 +265,13 @@ fn data_id_for_static(
265265
assert!(!definition);
266266
assert!(!tcx.is_mutable_static(def_id));
267267

268-
let ty = instance.ty(tcx, ParamEnv::reveal_all());
269-
let align = tcx.layout_of(ParamEnv::reveal_all().and(ty)).unwrap().align.pref.bytes();
268+
let ty = instance.ty(tcx, ty::TypingEnv::fully_monomorphized());
269+
let align = tcx
270+
.layout_of(ty::TypingEnv::fully_monomorphized().as_query_input(ty))
271+
.unwrap()
272+
.align
273+
.pref
274+
.bytes();
270275

271276
let linkage = if import_linkage == rustc_middle::mir::mono::Linkage::ExternalWeak
272277
|| import_linkage == rustc_middle::mir::mono::Linkage::WeakAny

‎compiler/rustc_codegen_cranelift/src/debuginfo/mod.rs‎

Lines changed: 5 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -210,7 +210,7 @@ impl DebugContext {
210210

211211
type_names::push_generic_params(
212212
tcx,
213-
tcx.normalize_erasing_regions(ty::ParamEnv::reveal_all(), args),
213+
tcx.normalize_erasing_regions(ty::TypingEnv::fully_monomorphized(), args),
214214
&mut name,
215215
);
216216

@@ -275,8 +275,10 @@ impl DebugContext {
275275
let span = tcx.def_span(def_id);
276276
let (file_id, line, _column) = self.get_span_loc(tcx, span, span);
277277

278-
let static_type = Instance::mono(tcx, def_id).ty(tcx, ty::ParamEnv::reveal_all());
279-
let static_layout = tcx.layout_of(ty::ParamEnv::reveal_all().and(static_type)).unwrap();
278+
let static_type = Instance::mono(tcx, def_id).ty(tcx, ty::TypingEnv::fully_monomorphized());
279+
let static_layout = tcx
280+
.layout_of(ty::TypingEnv::fully_monomorphized().as_query_input(static_type))
281+
.unwrap();
280282
// FIXME use the actual type layout
281283
let type_id = self.debug_type(tcx, type_dbg, static_type);
282284

‎compiler/rustc_codegen_cranelift/src/inline_asm.rs‎

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -92,7 +92,7 @@ pub(crate) fn codegen_inline_asm_terminator<'tcx>(
9292
if let ty::FnDef(def_id, args) = *const_.ty().kind() {
9393
let instance = ty::Instance::resolve_for_fn_ptr(
9494
fx.tcx,
95-
ty::ParamEnv::reveal_all(),
95+
ty::TypingEnv::fully_monomorphized(),
9696
def_id,
9797
args,
9898
)
@@ -227,11 +227,11 @@ pub(crate) fn codegen_naked_asm<'tcx>(
227227
InlineAsmOperand::Const { ref value } => {
228228
let cv = instance.instantiate_mir_and_normalize_erasing_regions(
229229
tcx,
230-
ty::ParamEnv::reveal_all(),
230+
ty::TypingEnv::fully_monomorphized(),
231231
ty::EarlyBinder::bind(value.const_),
232232
);
233233
let const_value = cv
234-
.eval(tcx, ty::ParamEnv::reveal_all(), value.span)
234+
.eval(tcx, ty::TypingEnv::fully_monomorphized(), value.span)
235235
.expect("erroneous constant missed by mono item collection");
236236

237237
let value = rustc_codegen_ssa::common::asm_const_to_str(
@@ -250,13 +250,13 @@ pub(crate) fn codegen_naked_asm<'tcx>(
250250

251251
let const_ = instance.instantiate_mir_and_normalize_erasing_regions(
252252
tcx,
253-
ty::ParamEnv::reveal_all(),
253+
ty::TypingEnv::fully_monomorphized(),
254254
ty::EarlyBinder::bind(value.const_),
255255
);
256256
if let ty::FnDef(def_id, args) = *const_.ty().kind() {
257257
let instance = ty::Instance::resolve_for_fn_ptr(
258258
tcx,
259-
ty::ParamEnv::reveal_all(),
259+
ty::TypingEnv::fully_monomorphized(),
260260
def_id,
261261
args,
262262
)

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