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Rollup merge of #107125 - WaffleLapkin:expect_an_item_in_your_hir_by_the_next_morning, r=Nilstrieb

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Add and use expect methods to hir.

[The future has come](https://github.com/rust-lang/rust/pull/106090/files#r1070062462).

r? `@Nilstrieb`

tbh I'm not even sure if it's worth it
This commit is contained in:
Matthias Krüger
2023-01-30 17:50:08 +01:00
committed by GitHub
parent 006ca9b14d 883145f75d
commit 4ac1796267
8 changed files with 378 additions and 25 deletions
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18
compiler/rustc_hir_analysis/src/check/compare_impl_item.rs
View File

@@ -8,7 +8,7 @@ use rustc_errors::{
use rustc_hir as hir;
use rustc_hir::def::{DefKind, Res};
use rustc_hir::intravisit;
use rustc_hir::{GenericParamKind, ImplItemKind, TraitItemKind};
use rustc_hir::{GenericParamKind, ImplItemKind};
use rustc_infer::infer::outlives::env::OutlivesEnvironment;
use rustc_infer::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind};
use rustc_infer::infer::{self, InferCtxt, TyCtxtInferExt};
@@ -918,7 +918,7 @@ fn report_trait_method_mismatch<'tcx>(
// When the `impl` receiver is an arbitrary self type, like `self: Box<Self>`, the
// span points only at the type `Box<Self`>, but we want to cover the whole
// argument pattern and type.
let ImplItemKind::Fn(ref sig, body) = tcx.hir().expect_impl_item(impl_m.def_id.expect_local()).kind else { bug!("{impl_m:?} is not a method") };
let (sig, body) = tcx.hir().expect_impl_item(impl_m.def_id.expect_local()).expect_fn();
let span = tcx
.hir()
.body_param_names(body)
@@ -1080,12 +1080,12 @@ fn extract_spans_for_error_reporting<'tcx>(
) -> (Span, Option<Span>) {
let tcx = infcx.tcx;
let mut impl_args = {
let ImplItemKind::Fn(sig, _) = &tcx.hir().expect_impl_item(impl_m.def_id.expect_local()).kind else { bug!("{:?} is not a method", impl_m) };
let (sig, _) = tcx.hir().expect_impl_item(impl_m.def_id.expect_local()).expect_fn();
sig.decl.inputs.iter().map(|t| t.span).chain(iter::once(sig.decl.output.span()))
};
let trait_args = trait_m.def_id.as_local().map(|def_id| {
let TraitItemKind::Fn(sig, _) = &tcx.hir().expect_trait_item(def_id).kind else { bug!("{:?} is not a TraitItemKind::Fn", trait_m) };
let (sig, _) = tcx.hir().expect_trait_item(def_id).expect_fn();
sig.decl.inputs.iter().map(|t| t.span).chain(iter::once(sig.decl.output.span()))
});
@@ -1358,7 +1358,7 @@ fn compare_number_of_method_arguments<'tcx>(
.def_id
.as_local()
.and_then(|def_id| {
let TraitItemKind::Fn(trait_m_sig, _) = &tcx.hir().expect_trait_item(def_id).kind else { bug!("{:?} is not a method", impl_m) };
let (trait_m_sig, _) = &tcx.hir().expect_trait_item(def_id).expect_fn();
let pos = trait_number_args.saturating_sub(1);
trait_m_sig.decl.inputs.get(pos).map(|arg| {
if pos == 0 {
@@ -1370,7 +1370,7 @@ fn compare_number_of_method_arguments<'tcx>(
})
.or(trait_item_span);
let ImplItemKind::Fn(impl_m_sig, _) = &tcx.hir().expect_impl_item(impl_m.def_id.expect_local()).kind else { bug!("{:?} is not a method", impl_m) };
let (impl_m_sig, _) = &tcx.hir().expect_impl_item(impl_m.def_id.expect_local()).expect_fn();
let pos = impl_number_args.saturating_sub(1);
let impl_span = impl_m_sig
.decl
@@ -1506,7 +1506,7 @@ fn compare_synthetic_generics<'tcx>(
let _: Option<_> = try {
let impl_m = impl_m.def_id.as_local()?;
let impl_m = tcx.hir().expect_impl_item(impl_m);
let hir::ImplItemKind::Fn(sig, _) = &impl_m.kind else { unreachable!() };
let (sig, _) = impl_m.expect_fn();
let input_tys = sig.decl.inputs;
struct Visitor(Option<Span>, hir::def_id::LocalDefId);
@@ -1704,7 +1704,7 @@ pub(super) fn compare_impl_const_raw(
);
// Locate the Span containing just the type of the offending impl
let ImplItemKind::Const(ty, _) = tcx.hir().expect_impl_item(impl_const_item_def).kind else { bug!("{impl_const_item:?} is not a impl const") };
let (ty, _) = tcx.hir().expect_impl_item(impl_const_item_def).expect_const();
cause.span = ty.span;
let mut diag = struct_span_err!(
@@ -1717,7 +1717,7 @@ pub(super) fn compare_impl_const_raw(
let trait_c_span = trait_const_item_def.as_local().map(|trait_c_def_id| {
// Add a label to the Span containing just the type of the const
let TraitItemKind::Const(ty, _) = tcx.hir().expect_trait_item(trait_c_def_id).kind else { bug!("{trait_const_item:?} is not a trait const") };
let (ty, _) = tcx.hir().expect_trait_item(trait_c_def_id).expect_const();
ty.span
});

8
compiler/rustc_hir_analysis/src/check/wfcheck.rs
View File

@@ -1072,8 +1072,8 @@ fn check_type_defn<'tcx>(tcx: TyCtxt<'tcx>, item: &hir::Item<'tcx>, all_sized: b
// All field types must be well-formed.
for field in &variant.fields {
let field_id = field.did.expect_local();
let hir::Node::Field(hir::FieldDef { ty: hir_ty, .. }) = tcx.hir().get_by_def_id(field_id)
else { bug!() };
let hir::FieldDef { ty: hir_ty, .. } =
tcx.hir().get_by_def_id(field_id).expect_field();
let ty = wfcx.normalize(hir_ty.span, None, tcx.type_of(field.did));
wfcx.register_wf_obligation(
hir_ty.span,
@@ -1106,8 +1106,8 @@ fn check_type_defn<'tcx>(tcx: TyCtxt<'tcx>, item: &hir::Item<'tcx>, all_sized: b
{
let last = idx == variant.fields.len() - 1;
let field_id = field.did.expect_local();
let hir::Node::Field(hir::FieldDef { ty: hir_ty, .. }) = tcx.hir().get_by_def_id(field_id)
else { bug!() };
let hir::FieldDef { ty: hir_ty, .. } =
tcx.hir().get_by_def_id(field_id).expect_field();
let ty = wfcx.normalize(hir_ty.span, None, tcx.type_of(field.did));
wfcx.register_bound(
traits::ObligationCause::new(