diff options
Diffstat (limited to '')
| -rw-r--r-- | compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs (renamed from compiler/rustc_typeck/src/check/fn_ctxt/checks.rs) | 72 |
1 files changed, 43 insertions, 29 deletions
diff --git a/compiler/rustc_typeck/src/check/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index 311fcaada..8e0fcb56c 100644 --- a/compiler/rustc_typeck/src/check/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -1,19 +1,13 @@ -use crate::astconv::AstConv; -use crate::check::coercion::CoerceMany; -use crate::check::fn_ctxt::arg_matrix::{ - ArgMatrix, Compatibility, Error, ExpectedIdx, ProvidedIdx, +use crate::coercion::CoerceMany; +use crate::fn_ctxt::arg_matrix::{ArgMatrix, Compatibility, Error, ExpectedIdx, ProvidedIdx}; +use crate::gather_locals::Declaration; +use crate::method::MethodCallee; +use crate::Expectation::*; +use crate::TupleArgumentsFlag::*; +use crate::{ + struct_span_err, BreakableCtxt, Diverges, Expectation, FnCtxt, LocalTy, Needs, + TupleArgumentsFlag, }; -use crate::check::gather_locals::Declaration; -use crate::check::intrinsicck::InlineAsmCtxt; -use crate::check::method::MethodCallee; -use crate::check::Expectation::*; -use crate::check::TupleArgumentsFlag::*; -use crate::check::{ - potentially_plural_count, struct_span_err, BreakableCtxt, Diverges, Expectation, FnCtxt, - LocalTy, Needs, TupleArgumentsFlag, -}; -use crate::structured_errors::StructuredDiagnostic; - use rustc_ast as ast; use rustc_data_structures::fx::FxHashSet; use rustc_errors::{pluralize, Applicability, Diagnostic, DiagnosticId, MultiSpan}; @@ -21,6 +15,10 @@ use rustc_hir as hir; use rustc_hir::def::{CtorOf, DefKind, Res}; use rustc_hir::def_id::DefId; use rustc_hir::{ExprKind, Node, QPath}; +use rustc_hir_analysis::astconv::AstConv; +use rustc_hir_analysis::check::intrinsicck::InlineAsmCtxt; +use rustc_hir_analysis::check::potentially_plural_count; +use rustc_hir_analysis::structured_errors::StructuredDiagnostic; use rustc_index::vec::IndexVec; use rustc_infer::infer::error_reporting::{FailureCode, ObligationCauseExt}; use rustc_infer::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; @@ -35,23 +33,34 @@ use rustc_span::{self, sym, Span}; use rustc_trait_selection::traits::{self, ObligationCauseCode, SelectionContext}; use std::iter; +use std::mem; use std::ops::ControlFlow; use std::slice; impl<'a, 'tcx> FnCtxt<'a, 'tcx> { - pub(in super::super) fn check_casts(&self) { - let mut deferred_cast_checks = self.deferred_cast_checks.borrow_mut(); + pub(in super::super) fn check_casts(&mut self) { + // don't hold the borrow to deferred_cast_checks while checking to avoid borrow checker errors + // when writing to `self.param_env`. + let mut deferred_cast_checks = mem::take(&mut *self.deferred_cast_checks.borrow_mut()); + debug!("FnCtxt::check_casts: {} deferred checks", deferred_cast_checks.len()); for cast in deferred_cast_checks.drain(..) { + let prev_env = self.param_env; + self.param_env = self.param_env.with_constness(cast.constness); + cast.check(self); + + self.param_env = prev_env; } + + *self.deferred_cast_checks.borrow_mut() = deferred_cast_checks; } pub(in super::super) fn check_transmutes(&self) { let mut deferred_transmute_checks = self.deferred_transmute_checks.borrow_mut(); debug!("FnCtxt::check_transmutes: {} deferred checks", deferred_transmute_checks.len()); - for (from, to, span) in deferred_transmute_checks.drain(..) { - self.check_transmute(span, from, to); + for (from, to, hir_id) in deferred_transmute_checks.drain(..) { + self.check_transmute(from, to, hir_id); } } @@ -63,7 +72,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let get_operand_ty = |expr| { let ty = self.typeck_results.borrow().expr_ty_adjusted(expr); let ty = self.resolve_vars_if_possible(ty); - if ty.has_infer_types_or_consts() { + if ty.has_non_region_infer() { assert!(self.is_tainted_by_errors()); self.tcx.ty_error() } else { @@ -391,7 +400,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ty: Ty<'tcx>, cast_ty: &str, ) { - use crate::structured_errors::MissingCastForVariadicArg; + use rustc_hir_analysis::structured_errors::MissingCastForVariadicArg; MissingCastForVariadicArg { sess, span, ty, cast_ty }.diagnostic().emit(); } @@ -650,7 +659,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { if tys.len() == 1 { // A tuple wrap suggestion actually occurs within, // so don't do anything special here. - err = self.report_and_explain_type_error( + err = self.err_ctxt().report_and_explain_type_error( TypeTrace::types( &self.misc(*lo), true, @@ -742,7 +751,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let cause = &self.misc(provided_span); let trace = TypeTrace::types(cause, true, expected_ty, provided_ty); if !matches!(trace.cause.as_failure_code(*e), FailureCode::Error0308(_)) { - self.report_and_explain_type_error(trace, *e).emit(); + self.err_ctxt().report_and_explain_type_error(trace, *e).emit(); return true; } false @@ -766,7 +775,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let (provided_ty, provided_arg_span) = provided_arg_tys[*provided_idx]; let cause = &self.misc(provided_arg_span); let trace = TypeTrace::types(cause, true, expected_ty, provided_ty); - let mut err = self.report_and_explain_type_error(trace, *err); + let mut err = self.err_ctxt().report_and_explain_type_error(trace, *err); self.emit_coerce_suggestions( &mut err, &provided_args[*provided_idx], @@ -840,7 +849,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let cause = &self.misc(provided_span); let trace = TypeTrace::types(cause, true, expected_ty, provided_ty); if let Some(e) = error { - self.note_type_err( + self.err_ctxt().note_type_err( &mut err, &trace.cause, None, @@ -1199,7 +1208,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { _ => bug!("unexpected type: {:?}", ty), }, Res::Def(DefKind::Struct | DefKind::Union | DefKind::TyAlias | DefKind::AssocTy, _) - | Res::SelfTy { .. } => match ty.kind() { + | Res::SelfTyParam { .. } + | Res::SelfTyAlias { .. } => match ty.kind() { ty::Adt(adt, substs) if !adt.is_enum() => { Some((adt.non_enum_variant(), adt.did(), substs)) } @@ -1473,7 +1483,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { &mut |err| { if let Some(expected_ty) = expected.only_has_type(self) { if !self.consider_removing_semicolon(blk, expected_ty, err) { - self.consider_returning_binding(blk, expected_ty, err); + self.err_ctxt().consider_returning_binding( + blk, + expected_ty, + err, + ); } if expected_ty == self.tcx.types.bool { // If this is caused by a missing `let` in a `while let`, @@ -1543,7 +1557,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } fn parent_item_span(&self, id: hir::HirId) -> Option<Span> { - let node = self.tcx.hir().get_by_def_id(self.tcx.hir().get_parent_item(id)); + let node = self.tcx.hir().get_by_def_id(self.tcx.hir().get_parent_item(id).def_id); match node { Node::Item(&hir::Item { kind: hir::ItemKind::Fn(_, _, body_id), .. }) | Node::ImplItem(&hir::ImplItem { kind: hir::ImplItemKind::Fn(_, body_id), .. }) => { @@ -1559,7 +1573,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { /// Given a function block's `HirId`, returns its `FnDecl` if it exists, or `None` otherwise. fn get_parent_fn_decl(&self, blk_id: hir::HirId) -> Option<(&'tcx hir::FnDecl<'tcx>, Ident)> { - let parent = self.tcx.hir().get_by_def_id(self.tcx.hir().get_parent_item(blk_id)); + let parent = self.tcx.hir().get_by_def_id(self.tcx.hir().get_parent_item(blk_id).def_id); self.get_node_fn_decl(parent).map(|(fn_decl, ident, _)| (fn_decl, ident)) } |