diff options
Diffstat (limited to 'compiler')
22 files changed, 207 insertions, 166 deletions
diff --git a/compiler/rustc_codegen_ssa/src/back/linker.rs b/compiler/rustc_codegen_ssa/src/back/linker.rs index 4f3664a503d..6ee599c9964 100644 --- a/compiler/rustc_codegen_ssa/src/back/linker.rs +++ b/compiler/rustc_codegen_ssa/src/back/linker.rs @@ -1279,7 +1279,7 @@ impl<'a> WasmLd<'a> { let mut wasm_ld = WasmLd { cmd, sess }; if sess.target_features.contains(&sym::atomics) { wasm_ld.link_args(&["--shared-memory", "--max-memory=1073741824", "--import-memory"]); - if sess.target.os == "unknown" { + if sess.target.os == "unknown" || sess.target.os == "none" { wasm_ld.link_args(&[ "--export=__wasm_init_tls", "--export=__tls_size", @@ -1403,7 +1403,7 @@ impl<'a> Linker for WasmLd<'a> { // symbols explicitly passed via the `--export` flags above and hides all // others. Various bits and pieces of wasm32-unknown-unknown tooling use // this, so be sure these symbols make their way out of the linker as well. - if self.sess.target.os == "unknown" { + if self.sess.target.os == "unknown" || self.sess.target.os == "none" { self.link_args(&["--export=__heap_base", "--export=__data_end"]); } } diff --git a/compiler/rustc_data_structures/src/unord.rs b/compiler/rustc_data_structures/src/unord.rs index bafb16a8b5e..34895d3efe6 100644 --- a/compiler/rustc_data_structures/src/unord.rs +++ b/compiler/rustc_data_structures/src/unord.rs @@ -602,6 +602,11 @@ impl<K: Eq + Hash, V> UnordMap<K, V> { .into_iter() .map(|(_, v)| v) } + + #[inline] + pub fn clear(&mut self) { + self.inner.clear() + } } impl<K, Q: ?Sized, V> Index<&Q> for UnordMap<K, V> diff --git a/compiler/rustc_hir_analysis/src/coherence/builtin.rs b/compiler/rustc_hir_analysis/src/coherence/builtin.rs index c2ad61820a7..3b49bc41ffe 100644 --- a/compiler/rustc_hir_analysis/src/coherence/builtin.rs +++ b/compiler/rustc_hir_analysis/src/coherence/builtin.rs @@ -37,22 +37,19 @@ pub(super) fn check_trait<'tcx>( ) -> Result<(), ErrorGuaranteed> { let lang_items = tcx.lang_items(); let checker = Checker { tcx, trait_def_id, impl_def_id, impl_header }; - let mut res = checker.check(lang_items.drop_trait(), visit_implementation_of_drop); - res = res.and(checker.check(lang_items.copy_trait(), visit_implementation_of_copy)); - res = res.and(checker.check(lang_items.const_param_ty_trait(), |checker| { + checker.check(lang_items.drop_trait(), visit_implementation_of_drop)?; + checker.check(lang_items.copy_trait(), visit_implementation_of_copy)?; + checker.check(lang_items.const_param_ty_trait(), |checker| { visit_implementation_of_const_param_ty(checker, LangItem::ConstParamTy) - })); - res = res.and(checker.check(lang_items.unsized_const_param_ty_trait(), |checker| { + })?; + checker.check(lang_items.unsized_const_param_ty_trait(), |checker| { visit_implementation_of_const_param_ty(checker, LangItem::UnsizedConstParamTy) - })); - - res = res.and( - checker.check(lang_items.coerce_unsized_trait(), visit_implementation_of_coerce_unsized), - ); - res.and( - checker - .check(lang_items.dispatch_from_dyn_trait(), visit_implementation_of_dispatch_from_dyn), - ) + })?; + checker.check(lang_items.coerce_unsized_trait(), visit_implementation_of_coerce_unsized)?; + checker + .check(lang_items.dispatch_from_dyn_trait(), visit_implementation_of_dispatch_from_dyn)?; + checker.check(lang_items.pointer_like(), visit_implementation_of_pointer_like)?; + Ok(()) } struct Checker<'tcx> { @@ -663,3 +660,63 @@ fn infringing_fields_error<'tcx>( err.emit() } + +fn visit_implementation_of_pointer_like(checker: &Checker<'_>) -> Result<(), ErrorGuaranteed> { + let tcx = checker.tcx; + let typing_env = ty::TypingEnv::non_body_analysis(tcx, checker.impl_def_id); + let impl_span = tcx.def_span(checker.impl_def_id); + let self_ty = tcx.impl_trait_ref(checker.impl_def_id).unwrap().instantiate_identity().self_ty(); + + // If an ADT is repr(transparent)... + if let ty::Adt(def, args) = *self_ty.kind() + && def.repr().transparent() + { + // FIXME(compiler-errors): This should and could be deduplicated into a query. + // Find the nontrivial field. + let adt_typing_env = ty::TypingEnv::non_body_analysis(tcx, def.did()); + let nontrivial_field = def.all_fields().find(|field_def| { + let field_ty = tcx.type_of(field_def.did).instantiate_identity(); + !tcx.layout_of(adt_typing_env.as_query_input(field_ty)) + .is_ok_and(|layout| layout.layout.is_1zst()) + }); + + if let Some(nontrivial_field) = nontrivial_field { + // Check that the nontrivial field implements `PointerLike`. + let nontrivial_field = nontrivial_field.ty(tcx, args); + let (infcx, param_env) = tcx.infer_ctxt().build_with_typing_env(typing_env); + let ocx = ObligationCtxt::new(&infcx); + ocx.register_bound( + ObligationCause::misc(impl_span, checker.impl_def_id), + param_env, + nontrivial_field, + tcx.lang_items().pointer_like().unwrap(), + ); + // FIXME(dyn-star): We should regionck this implementation. + if ocx.select_all_or_error().is_empty() { + return Ok(()); + } + } + } + + let is_permitted_primitive = match *self_ty.kind() { + ty::Adt(def, _) => def.is_box(), + ty::Uint(..) | ty::Int(..) | ty::RawPtr(..) | ty::Ref(..) | ty::FnPtr(..) => true, + _ => false, + }; + + if is_permitted_primitive + && let Ok(layout) = tcx.layout_of(typing_env.as_query_input(self_ty)) + && layout.layout.is_pointer_like(&tcx.data_layout) + { + return Ok(()); + } + + Err(tcx + .dcx() + .struct_span_err( + impl_span, + "implementation must be applied to type that has the same ABI as a pointer, \ + or is `repr(transparent)` and whose field is `PointerLike`", + ) + .emit()) +} diff --git a/compiler/rustc_middle/src/thir.rs b/compiler/rustc_middle/src/thir.rs index 06336d57704..9cf6bc1b777 100644 --- a/compiler/rustc_middle/src/thir.rs +++ b/compiler/rustc_middle/src/thir.rs @@ -656,7 +656,7 @@ impl<'tcx> Pat<'tcx> { | Binding { subpattern: Some(subpattern), .. } | Deref { subpattern } | DerefPattern { subpattern, .. } - | InlineConstant { subpattern, .. } => subpattern.walk_(it), + | ExpandedConstant { subpattern, .. } => subpattern.walk_(it), Leaf { subpatterns } | Variant { subpatterns, .. } => { subpatterns.iter().for_each(|field| field.pattern.walk_(it)) } @@ -799,12 +799,17 @@ pub enum PatKind<'tcx> { value: mir::Const<'tcx>, }, - /// Inline constant found while lowering a pattern. - InlineConstant { - /// [LocalDefId] of the constant, we need this so that we have a + /// Pattern obtained by converting a constant (inline or named) to its pattern + /// representation using `const_to_pat`. + ExpandedConstant { + /// [DefId] of the constant, we need this so that we have a /// reference that can be used by unsafety checking to visit nested - /// unevaluated constants. - def: LocalDefId, + /// unevaluated constants and for diagnostics. If the `DefId` doesn't + /// correspond to a local crate, it points at the `const` item. + def_id: DefId, + /// If `false`, then `def_id` points at a `const` item, otherwise it + /// corresponds to a local inline const. + is_inline: bool, /// If the inline constant is used in a range pattern, this subpattern /// represents the range (if both ends are inline constants, there will /// be multiple InlineConstant wrappers). diff --git a/compiler/rustc_middle/src/thir/visit.rs b/compiler/rustc_middle/src/thir/visit.rs index 36f0e3d890c..81202a6eaad 100644 --- a/compiler/rustc_middle/src/thir/visit.rs +++ b/compiler/rustc_middle/src/thir/visit.rs @@ -247,7 +247,7 @@ pub fn walk_pat<'thir, 'tcx: 'thir, V: Visitor<'thir, 'tcx>>( } } Constant { value: _ } => {} - InlineConstant { def: _, subpattern } => visitor.visit_pat(subpattern), + ExpandedConstant { def_id: _, is_inline: _, subpattern } => visitor.visit_pat(subpattern), Range(_) => {} Slice { prefix, slice, suffix } | Array { prefix, slice, suffix } => { for subpattern in prefix.iter() { diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index ad42eacf823..b4d29f08a0f 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -602,19 +602,6 @@ impl<'tcx> Interner for TyCtxt<'tcx> { self.coroutine_is_async_gen(coroutine_def_id) } - // We don't use `TypingEnv` here as it's only defined in `rustc_middle` and - // `rustc_next_trait_solver` shouldn't have to know about it. - fn layout_is_pointer_like( - self, - typing_mode: ty::TypingMode<'tcx>, - param_env: ty::ParamEnv<'tcx>, - ty: Ty<'tcx>, - ) -> bool { - let typing_env = ty::TypingEnv { typing_mode, param_env }; - self.layout_of(self.erase_regions(typing_env).as_query_input(self.erase_regions(ty))) - .is_ok_and(|layout| layout.layout.is_pointer_like(&self.data_layout)) - } - type UnsizingParams = &'tcx rustc_index::bit_set::BitSet<u32>; fn unsizing_params_for_adt(self, adt_def_id: DefId) -> Self::UnsizingParams { self.unsizing_params_for_adt(adt_def_id) @@ -688,7 +675,6 @@ bidirectional_lang_item_map! { Metadata, Option, PointeeTrait, - PointerLike, Poll, Sized, TransmuteTrait, diff --git a/compiler/rustc_mir_build/src/build/custom/parse/instruction.rs b/compiler/rustc_mir_build/src/build/custom/parse/instruction.rs index d08809ef67b..c3e9bd302de 100644 --- a/compiler/rustc_mir_build/src/build/custom/parse/instruction.rs +++ b/compiler/rustc_mir_build/src/build/custom/parse/instruction.rs @@ -144,12 +144,20 @@ impl<'a, 'tcx> ParseCtxt<'a, 'tcx> { let mut targets = Vec::new(); for arm in rest { let arm = &self.thir[*arm]; - let PatKind::Constant { value } = arm.pattern.kind else { - return Err(ParseError { - span: arm.pattern.span, - item_description: format!("{:?}", arm.pattern.kind), - expected: "constant pattern".to_string(), - }); + let value = match arm.pattern.kind { + PatKind::Constant { value } => value, + PatKind::ExpandedConstant { ref subpattern, def_id: _, is_inline: false } + if let PatKind::Constant { value } = subpattern.kind => + { + value + } + _ => { + return Err(ParseError { + span: arm.pattern.span, + item_description: format!("{:?}", arm.pattern.kind), + expected: "constant pattern".to_string(), + }); + } }; values.push(value.eval_bits(self.tcx, self.typing_env)); targets.push(self.parse_block(arm.body)?); diff --git a/compiler/rustc_mir_build/src/build/matches/match_pair.rs b/compiler/rustc_mir_build/src/build/matches/match_pair.rs index fcbf84a41d9..2815b390375 100644 --- a/compiler/rustc_mir_build/src/build/matches/match_pair.rs +++ b/compiler/rustc_mir_build/src/build/matches/match_pair.rs @@ -162,7 +162,11 @@ impl<'pat, 'tcx> MatchPairTree<'pat, 'tcx> { TestCase::Irrefutable { ascription: None, binding } } - PatKind::InlineConstant { subpattern: ref pattern, def, .. } => { + PatKind::ExpandedConstant { subpattern: ref pattern, def_id: _, is_inline: false } => { + subpairs.push(MatchPairTree::for_pattern(place_builder, pattern, cx)); + default_irrefutable() + } + PatKind::ExpandedConstant { subpattern: ref pattern, def_id, is_inline: true } => { // Apply a type ascription for the inline constant to the value at `match_pair.place` let ascription = place.map(|source| { let span = pattern.span; @@ -173,7 +177,7 @@ impl<'pat, 'tcx> MatchPairTree<'pat, 'tcx> { }) .args; let user_ty = cx.infcx.canonicalize_user_type_annotation(ty::UserType::TypeOf( - def.to_def_id(), + def_id, ty::UserArgs { args, user_self_ty: None }, )); let annotation = ty::CanonicalUserTypeAnnotation { diff --git a/compiler/rustc_mir_build/src/build/matches/mod.rs b/compiler/rustc_mir_build/src/build/matches/mod.rs index a4d16295880..5791460a6b1 100644 --- a/compiler/rustc_mir_build/src/build/matches/mod.rs +++ b/compiler/rustc_mir_build/src/build/matches/mod.rs @@ -926,7 +926,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { self.visit_primary_bindings(subpattern, subpattern_user_ty, f) } - PatKind::InlineConstant { ref subpattern, .. } => { + PatKind::ExpandedConstant { ref subpattern, .. } => { self.visit_primary_bindings(subpattern, pattern_user_ty, f) } diff --git a/compiler/rustc_mir_build/src/check_unsafety.rs b/compiler/rustc_mir_build/src/check_unsafety.rs index 4a64a1f0f3e..66ea0a6e836 100644 --- a/compiler/rustc_mir_build/src/check_unsafety.rs +++ b/compiler/rustc_mir_build/src/check_unsafety.rs @@ -332,7 +332,7 @@ impl<'a, 'tcx> Visitor<'a, 'tcx> for UnsafetyVisitor<'a, 'tcx> { PatKind::Wild | // these just wrap other patterns, which we recurse on below. PatKind::Or { .. } | - PatKind::InlineConstant { .. } | + PatKind::ExpandedConstant { .. } | PatKind::AscribeUserType { .. } | PatKind::Error(_) => {} } @@ -386,8 +386,12 @@ impl<'a, 'tcx> Visitor<'a, 'tcx> for UnsafetyVisitor<'a, 'tcx> { visit::walk_pat(self, pat); self.inside_adt = old_inside_adt; } - PatKind::InlineConstant { def, .. } => { - self.visit_inner_body(*def); + PatKind::ExpandedConstant { def_id, is_inline, .. } => { + if let Some(def) = def_id.as_local() + && *is_inline + { + self.visit_inner_body(def); + } visit::walk_pat(self, pat); } _ => { diff --git a/compiler/rustc_mir_build/src/errors.rs b/compiler/rustc_mir_build/src/errors.rs index 62c6d85b73f..676f7c98b8f 100644 --- a/compiler/rustc_mir_build/src/errors.rs +++ b/compiler/rustc_mir_build/src/errors.rs @@ -860,8 +860,10 @@ pub(crate) struct PatternNotCovered<'s, 'tcx> { pub(crate) uncovered: Uncovered, #[subdiagnostic] pub(crate) inform: Option<Inform>, + #[label(mir_build_confused)] + pub(crate) interpreted_as_const: Option<Span>, #[subdiagnostic] - pub(crate) interpreted_as_const: Option<InterpretedAsConst>, + pub(crate) interpreted_as_const_sugg: Option<InterpretedAsConst>, #[subdiagnostic] pub(crate) adt_defined_here: Option<AdtDefinedHere<'tcx>>, #[note(mir_build_privately_uninhabited)] @@ -911,9 +913,9 @@ impl<'tcx> Subdiagnostic for AdtDefinedHere<'tcx> { #[suggestion( mir_build_interpreted_as_const, code = "{variable}_var", - applicability = "maybe-incorrect" + applicability = "maybe-incorrect", + style = "verbose" )] -#[label(mir_build_confused)] pub(crate) struct InterpretedAsConst { #[primary_span] pub(crate) span: Span, diff --git a/compiler/rustc_mir_build/src/thir/pattern/check_match.rs b/compiler/rustc_mir_build/src/thir/pattern/check_match.rs index 033501c66db..27920008c80 100644 --- a/compiler/rustc_mir_build/src/thir/pattern/check_match.rs +++ b/compiler/rustc_mir_build/src/thir/pattern/check_match.rs @@ -678,8 +678,25 @@ impl<'p, 'tcx> MatchVisitor<'p, 'tcx> { let mut let_suggestion = None; let mut misc_suggestion = None; let mut interpreted_as_const = None; + let mut interpreted_as_const_sugg = None; - if let PatKind::Constant { .. } + if let PatKind::ExpandedConstant { def_id, is_inline: false, .. } + | PatKind::AscribeUserType { + subpattern: + box Pat { kind: PatKind::ExpandedConstant { def_id, is_inline: false, .. }, .. }, + .. + } = pat.kind + && let DefKind::Const = self.tcx.def_kind(def_id) + && let Ok(snippet) = self.tcx.sess.source_map().span_to_snippet(pat.span) + // We filter out paths with multiple path::segments. + && snippet.chars().all(|c| c.is_alphanumeric() || c == '_') + { + let span = self.tcx.def_span(def_id); + let variable = self.tcx.item_name(def_id).to_string(); + // When we encounter a constant as the binding name, point at the `const` definition. + interpreted_as_const = Some(span); + interpreted_as_const_sugg = Some(InterpretedAsConst { span: pat.span, variable }); + } else if let PatKind::Constant { .. } | PatKind::AscribeUserType { subpattern: box Pat { kind: PatKind::Constant { .. }, .. }, .. @@ -692,9 +709,6 @@ impl<'p, 'tcx> MatchVisitor<'p, 'tcx> { misc_suggestion = Some(MiscPatternSuggestion::AttemptedIntegerLiteral { start_span: pat.span.shrink_to_lo(), }); - } else if snippet.chars().all(|c| c.is_alphanumeric() || c == '_') { - interpreted_as_const = - Some(InterpretedAsConst { span: pat.span, variable: snippet }); } } @@ -743,6 +757,7 @@ impl<'p, 'tcx> MatchVisitor<'p, 'tcx> { uncovered: Uncovered::new(pat.span, &cx, witnesses), inform, interpreted_as_const, + interpreted_as_const_sugg, witness_1_is_privately_uninhabited, _p: (), pattern_ty, @@ -1112,13 +1127,13 @@ fn report_non_exhaustive_match<'p, 'tcx>( if ty.is_ptr_sized_integral() { if ty.inner() == cx.tcx.types.usize { err.note(format!( - "`{ty}` does not have a fixed maximum value, so half-open ranges are necessary to match \ - exhaustively", + "`{ty}` does not have a fixed maximum value, so half-open ranges are \ + necessary to match exhaustively", )); } else if ty.inner() == cx.tcx.types.isize { err.note(format!( - "`{ty}` does not have fixed minimum and maximum values, so half-open ranges are necessary to match \ - exhaustively", + "`{ty}` does not have fixed minimum and maximum values, so half-open \ + ranges are necessary to match exhaustively", )); } } else if ty.inner() == cx.tcx.types.str_ { @@ -1139,6 +1154,31 @@ fn report_non_exhaustive_match<'p, 'tcx>( } } + for &arm in arms { + let arm = &thir.arms[arm]; + if let PatKind::ExpandedConstant { def_id, is_inline: false, .. } = arm.pattern.kind + && let Ok(snippet) = cx.tcx.sess.source_map().span_to_snippet(arm.pattern.span) + // We filter out paths with multiple path::segments. + && snippet.chars().all(|c| c.is_alphanumeric() || c == '_') + { + let const_name = cx.tcx.item_name(def_id); + err.span_label( + arm.pattern.span, + format!( + "this pattern doesn't introduce a new catch-all binding, but rather pattern \ + matches against the value of constant `{const_name}`", + ), + ); + err.span_note(cx.tcx.def_span(def_id), format!("constant `{const_name}` defined here")); + err.span_suggestion_verbose( + arm.pattern.span.shrink_to_hi(), + "if you meant to introduce a binding, use a different name", + "_var".to_string(), + Applicability::MaybeIncorrect, + ); + } + } + // Whether we suggest the actual missing patterns or `_`. let suggest_the_witnesses = witnesses.len() < 4; let suggested_arm = if suggest_the_witnesses { diff --git a/compiler/rustc_mir_build/src/thir/pattern/mod.rs b/compiler/rustc_mir_build/src/thir/pattern/mod.rs index 6b9e3b85999..08c6b4abd3b 100644 --- a/compiler/rustc_mir_build/src/thir/pattern/mod.rs +++ b/compiler/rustc_mir_build/src/thir/pattern/mod.rs @@ -149,21 +149,30 @@ impl<'a, 'tcx> PatCtxt<'a, 'tcx> { None => Ok((None, None, None)), Some(expr) => { let (kind, ascr, inline_const) = match self.lower_lit(expr) { - PatKind::InlineConstant { subpattern, def } => { - (subpattern.kind, None, Some(def)) + PatKind::ExpandedConstant { subpattern, def_id, is_inline: true } => { + (subpattern.kind, None, def_id.as_local()) + } + PatKind::ExpandedConstant { subpattern, is_inline: false, .. } => { + (subpattern.kind, None, None) } PatKind::AscribeUserType { ascription, subpattern: box Pat { kind, .. } } => { (kind, Some(ascription), None) } kind => (kind, None, None), }; - let value = if let PatKind::Constant { value } = kind { - value - } else { - let msg = format!( - "found bad range pattern endpoint `{expr:?}` outside of error recovery" - ); - return Err(self.tcx.dcx().span_delayed_bug(expr.span, msg)); + let value = match kind { + PatKind::Constant { value } => value, + PatKind::ExpandedConstant { subpattern, .. } + if let PatKind::Constant { value } = subpattern.kind => + { + value + } + _ => { + let msg = format!( + "found bad range pattern endpoint `{expr:?}` outside of error recovery" + ); + return Err(self.tcx.dcx().span_delayed_bug(expr.span, msg)); + } }; Ok((Some(PatRangeBoundary::Finite(value)), ascr, inline_const)) } @@ -288,7 +297,11 @@ impl<'a, 'tcx> PatCtxt<'a, 'tcx> { }; } for def in [lo_inline, hi_inline].into_iter().flatten() { - kind = PatKind::InlineConstant { def, subpattern: Box::new(Pat { span, ty, kind }) }; + kind = PatKind::ExpandedConstant { + def_id: def.to_def_id(), + is_inline: true, + subpattern: Box::new(Pat { span, ty, kind }), + }; } Ok(kind) } @@ -562,7 +575,12 @@ impl<'a, 'tcx> PatCtxt<'a, 'tcx> { let args = self.typeck_results.node_args(id); let c = ty::Const::new_unevaluated(self.tcx, ty::UnevaluatedConst { def: def_id, args }); - let pattern = self.const_to_pat(c, ty, id, span); + let subpattern = self.const_to_pat(c, ty, id, span); + let pattern = Box::new(Pat { + span, + ty, + kind: PatKind::ExpandedConstant { subpattern, def_id, is_inline: false }, + }); if !is_associated_const { return pattern; @@ -637,7 +655,7 @@ impl<'a, 'tcx> PatCtxt<'a, 'tcx> { let ct = ty::UnevaluatedConst { def: def_id.to_def_id(), args }; let subpattern = self.const_to_pat(ty::Const::new_unevaluated(self.tcx, ct), ty, id, span); - PatKind::InlineConstant { subpattern, def: def_id } + PatKind::ExpandedConstant { subpattern, def_id: def_id.to_def_id(), is_inline: true } } /// Converts literals, paths and negation of literals to patterns. diff --git a/compiler/rustc_mir_build/src/thir/print.rs b/compiler/rustc_mir_build/src/thir/print.rs index dae13df4054..6be0ed5fb31 100644 --- a/compiler/rustc_mir_build/src/thir/print.rs +++ b/compiler/rustc_mir_build/src/thir/print.rs @@ -707,9 +707,10 @@ impl<'a, 'tcx> ThirPrinter<'a, 'tcx> { print_indented!(self, format!("value: {:?}", value), depth_lvl + 2); print_indented!(self, "}", depth_lvl + 1); } - PatKind::InlineConstant { def, subpattern } => { - print_indented!(self, "InlineConstant {", depth_lvl + 1); - print_indented!(self, format!("def: {:?}", def), depth_lvl + 2); + PatKind::ExpandedConstant { def_id, is_inline, subpattern } => { + print_indented!(self, "ExpandedConstant {", depth_lvl + 1); + print_indented!(self, format!("def_id: {def_id:?}"), depth_lvl + 2); + print_indented!(self, format!("is_inline: {is_inline:?}"), depth_lvl + 2); print_indented!(self, "subpattern:", depth_lvl + 2); self.print_pat(subpattern, depth_lvl + 2); print_indented!(self, "}", depth_lvl + 1); diff --git a/compiler/rustc_next_trait_solver/src/solve/assembly/mod.rs b/compiler/rustc_next_trait_solver/src/solve/assembly/mod.rs index ebf7372926f..78344571088 100644 --- a/compiler/rustc_next_trait_solver/src/solve/assembly/mod.rs +++ b/compiler/rustc_next_trait_solver/src/solve/assembly/mod.rs @@ -159,13 +159,6 @@ where goal: Goal<I, Self>, ) -> Result<Candidate<I>, NoSolution>; - /// A type is `PointerLike` if we can compute its layout, and that layout - /// matches the layout of `usize`. - fn consider_builtin_pointer_like_candidate( - ecx: &mut EvalCtxt<'_, D>, - goal: Goal<I, Self>, - ) -> Result<Candidate<I>, NoSolution>; - /// A type is a `FnPtr` if it is of `FnPtr` type. fn consider_builtin_fn_ptr_trait_candidate( ecx: &mut EvalCtxt<'_, D>, @@ -449,9 +442,6 @@ where ty::ClosureKind::FnOnce, ) } - Some(TraitSolverLangItem::PointerLike) => { - G::consider_builtin_pointer_like_candidate(self, goal) - } Some(TraitSolverLangItem::FnPtrTrait) => { G::consider_builtin_fn_ptr_trait_candidate(self, goal) } diff --git a/compiler/rustc_next_trait_solver/src/solve/effect_goals.rs b/compiler/rustc_next_trait_solver/src/solve/effect_goals.rs index 282ca2fedbc..1f5ca71dd6f 100644 --- a/compiler/rustc_next_trait_solver/src/solve/effect_goals.rs +++ b/compiler/rustc_next_trait_solver/src/solve/effect_goals.rs @@ -210,13 +210,6 @@ where Err(NoSolution) } - fn consider_builtin_pointer_like_candidate( - _ecx: &mut EvalCtxt<'_, D>, - _goal: Goal<I, Self>, - ) -> Result<Candidate<I>, NoSolution> { - unreachable!("PointerLike is not const") - } - fn consider_builtin_fn_ptr_trait_candidate( _ecx: &mut EvalCtxt<'_, D>, _goal: Goal<I, Self>, diff --git a/compiler/rustc_next_trait_solver/src/solve/normalizes_to/mod.rs b/compiler/rustc_next_trait_solver/src/solve/normalizes_to/mod.rs index 8a01659953d..6b407640426 100644 --- a/compiler/rustc_next_trait_solver/src/solve/normalizes_to/mod.rs +++ b/compiler/rustc_next_trait_solver/src/solve/normalizes_to/mod.rs @@ -363,13 +363,6 @@ where panic!("`Copy`/`Clone` does not have an associated type: {:?}", goal); } - fn consider_builtin_pointer_like_candidate( - _ecx: &mut EvalCtxt<'_, D>, - goal: Goal<I, Self>, - ) -> Result<Candidate<I>, NoSolution> { - panic!("`PointerLike` does not have an associated type: {:?}", goal); - } - fn consider_builtin_fn_ptr_trait_candidate( _ecx: &mut EvalCtxt<'_, D>, goal: Goal<I, Self>, diff --git a/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs b/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs index e64d4eed9d8..ce16258d180 100644 --- a/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs +++ b/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs @@ -248,32 +248,6 @@ where ) } - fn consider_builtin_pointer_like_candidate( - ecx: &mut EvalCtxt<'_, D>, - goal: Goal<I, Self>, - ) -> Result<Candidate<I>, NoSolution> { - if goal.predicate.polarity != ty::PredicatePolarity::Positive { - return Err(NoSolution); - } - - let cx = ecx.cx(); - // But if there are inference variables, we have to wait until it's resolved. - if (goal.param_env, goal.predicate.self_ty()).has_non_region_infer() { - return ecx.forced_ambiguity(MaybeCause::Ambiguity); - } - - if cx.layout_is_pointer_like( - ecx.typing_mode(goal.param_env), - goal.param_env, - goal.predicate.self_ty(), - ) { - ecx.probe_builtin_trait_candidate(BuiltinImplSource::Misc) - .enter(|ecx| ecx.evaluate_added_goals_and_make_canonical_response(Certainty::Yes)) - } else { - Err(NoSolution) - } - } - fn consider_builtin_fn_ptr_trait_candidate( ecx: &mut EvalCtxt<'_, D>, goal: Goal<I, Self>, diff --git a/compiler/rustc_pattern_analysis/src/rustc.rs b/compiler/rustc_pattern_analysis/src/rustc.rs index 936e5235c55..cc0763ac751 100644 --- a/compiler/rustc_pattern_analysis/src/rustc.rs +++ b/compiler/rustc_pattern_analysis/src/rustc.rs @@ -465,7 +465,7 @@ impl<'p, 'tcx: 'p> RustcPatCtxt<'p, 'tcx> { let fields: Vec<_>; match &pat.kind { PatKind::AscribeUserType { subpattern, .. } - | PatKind::InlineConstant { subpattern, .. } => return self.lower_pat(subpattern), + | PatKind::ExpandedConstant { subpattern, .. } => return self.lower_pat(subpattern), PatKind::Binding { subpattern: Some(subpat), .. } => return self.lower_pat(subpat), PatKind::Binding { subpattern: None, .. } | PatKind::Wild => { ctor = Wildcard; diff --git a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs index 1e0c487c4d4..345e1cc31f3 100644 --- a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs +++ b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs @@ -111,8 +111,6 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { self.assemble_candidates_for_transmutability(obligation, &mut candidates); } else if tcx.is_lang_item(def_id, LangItem::Tuple) { self.assemble_candidate_for_tuple(obligation, &mut candidates); - } else if tcx.is_lang_item(def_id, LangItem::PointerLike) { - self.assemble_candidate_for_pointer_like(obligation, &mut candidates); } else if tcx.is_lang_item(def_id, LangItem::FnPtrTrait) { self.assemble_candidates_for_fn_ptr_trait(obligation, &mut candidates); } else { @@ -1216,35 +1214,6 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { } } - fn assemble_candidate_for_pointer_like( - &mut self, - obligation: &PolyTraitObligation<'tcx>, - candidates: &mut SelectionCandidateSet<'tcx>, - ) { - // The regions of a type don't affect the size of the type - let tcx = self.tcx(); - let self_ty = tcx.instantiate_bound_regions_with_erased(obligation.predicate.self_ty()); - - // But if there are inference variables, we have to wait until it's resolved. - if (obligation.param_env, self_ty).has_non_region_infer() { - candidates.ambiguous = true; - return; - } - - // We should erase regions from both the param-env and type, since both - // may have infer regions. Specifically, after canonicalizing and instantiating, - // early bound regions turn into region vars in both the new and old solver. - let key = self.infcx.pseudo_canonicalize_query( - tcx.erase_regions(obligation.param_env), - tcx.erase_regions(self_ty), - ); - if let Ok(layout) = tcx.layout_of(key) - && layout.layout.is_pointer_like(&tcx.data_layout) - { - candidates.vec.push(BuiltinCandidate { has_nested: false }); - } - } - fn assemble_candidates_for_fn_ptr_trait( &mut self, obligation: &PolyTraitObligation<'tcx>, diff --git a/compiler/rustc_type_ir/src/interner.rs b/compiler/rustc_type_ir/src/interner.rs index 6e6cf91d855..4e1715dbd0f 100644 --- a/compiler/rustc_type_ir/src/interner.rs +++ b/compiler/rustc_type_ir/src/interner.rs @@ -13,7 +13,7 @@ use crate::lang_items::TraitSolverLangItem; use crate::relate::Relate; use crate::solve::{CanonicalInput, ExternalConstraintsData, PredefinedOpaquesData, QueryResult}; use crate::visit::{Flags, TypeSuperVisitable, TypeVisitable}; -use crate::{self as ty, TypingMode, search_graph}; +use crate::{self as ty, search_graph}; pub trait Interner: Sized @@ -278,13 +278,6 @@ pub trait Interner: fn coroutine_is_gen(self, coroutine_def_id: Self::DefId) -> bool; fn coroutine_is_async_gen(self, coroutine_def_id: Self::DefId) -> bool; - fn layout_is_pointer_like( - self, - typing_mode: TypingMode<Self>, - param_env: Self::ParamEnv, - ty: Self::Ty, - ) -> bool; - type UnsizingParams: Deref<Target = BitSet<u32>>; fn unsizing_params_for_adt(self, adt_def_id: Self::DefId) -> Self::UnsizingParams; diff --git a/compiler/rustc_type_ir/src/lang_items.rs b/compiler/rustc_type_ir/src/lang_items.rs index d6ca22a90a4..df43346065d 100644 --- a/compiler/rustc_type_ir/src/lang_items.rs +++ b/compiler/rustc_type_ir/src/lang_items.rs @@ -31,7 +31,6 @@ pub enum TraitSolverLangItem { Metadata, Option, PointeeTrait, - PointerLike, Poll, Sized, TransmuteTrait, |