use crate::lint;
use crate::middle::resolve_lifetime as rl;
use crate::middle::weak_lang_items;
-use rustc::hir::intravisit::{self, NestedVisitorMap, Visitor};
+use errors::{struct_span_err, Applicability, StashKey};
+use rustc::hir::map::Map;
use rustc::middle::codegen_fn_attrs::{CodegenFnAttrFlags, CodegenFnAttrs};
use rustc::mir::mono::Linkage;
+use rustc::traits;
use rustc::ty::query::Providers;
use rustc::ty::subst::GenericArgKind;
use rustc::ty::subst::{InternalSubsts, Subst};
use rustc_hir as hir;
use rustc_hir::def::{CtorKind, DefKind, Res};
use rustc_hir::def_id::{DefId, LOCAL_CRATE};
+use rustc_hir::intravisit::{self, NestedVisitorMap, Visitor};
use rustc_hir::{GenericParamKind, Node, Unsafety};
use rustc_span::symbol::{kw, sym, Symbol};
use rustc_span::{Span, DUMMY_SP};
use syntax::attr::{list_contains_name, mark_used, InlineAttr, OptimizeAttr};
use syntax::feature_gate;
-use errors::{Applicability, StashKey};
-
use rustc_error_codes::*;
struct OnlySelfBounds(bool);
crate struct PlaceholderHirTyCollector(crate Vec<Span>);
impl<'v> Visitor<'v> for PlaceholderHirTyCollector {
- fn nested_visit_map<'this>(&'this mut self) -> NestedVisitorMap<'this, 'v> {
+ type Map = Map<'v>;
+
+ fn nested_visit_map(&mut self) -> NestedVisitorMap<'_, Self::Map> {
NestedVisitorMap::None
}
fn visit_ty(&mut self, t: &'v hir::Ty<'v>) {
}
impl Visitor<'tcx> for CollectItemTypesVisitor<'tcx> {
- fn nested_visit_map<'this>(&'this mut self) -> NestedVisitorMap<'this, 'tcx> {
+ type Map = Map<'tcx>;
+
+ fn nested_visit_map(&mut self) -> NestedVisitorMap<'_, Self::Map> {
NestedVisitorMap::OnlyBodies(&self.tcx.hir())
}
self.tcx().mk_projection(item_def_id, item_substs)
} else {
// There are no late-bound regions; we can just ignore the binder.
- span_err!(
+ struct_span_err!(
self.tcx().sess,
span,
E0212,
"cannot extract an associated type from a higher-ranked trait bound \
in this context"
- );
+ )
+ .emit();
self.tcx().types.err
}
}
let paren_sugar = tcx.has_attr(def_id, sym::rustc_paren_sugar);
if paren_sugar && !tcx.features().unboxed_closures {
- let mut err = tcx.sess.struct_span_err(
- item.span,
- "the `#[rustc_paren_sugar]` attribute is a temporary means of controlling \
+ tcx.sess
+ .struct_span_err(
+ item.span,
+ "the `#[rustc_paren_sugar]` attribute is a temporary means of controlling \
which traits can use parenthetical notation",
- );
- help!(
- &mut err,
- "add `#![feature(unboxed_closures)]` to \
- the crate attributes to use it"
- );
- err.emit();
+ )
+ .help("add `#![feature(unboxed_closures)]` to the crate attributes to use it")
+ .emit();
}
let is_marker = tcx.has_attr(def_id, sym::marker);
}
impl Visitor<'tcx> for LateBoundRegionsDetector<'tcx> {
- fn nested_visit_map<'this>(&'this mut self) -> NestedVisitorMap<'this, 'tcx> {
+ type Map = Map<'tcx>;
+
+ fn nested_visit_map(&mut self) -> NestedVisitorMap<'_, Self::Map> {
NestedVisitorMap::None
}
}
fn report_assoc_ty_on_inherent_impl(tcx: TyCtxt<'_>, span: Span) {
- span_err!(
+ struct_span_err!(
tcx.sess,
span,
E0202,
"associated types are not yet supported in inherent impls (see #8995)"
- );
+ )
+ .emit();
}
fn infer_placeholder_type(
}
}
- Node::GenericParam(param) => {
- match ¶m.kind {
- hir::GenericParamKind::Type { default: Some(ref ty), .. } => icx.to_ty(ty),
- hir::GenericParamKind::Const { ty: ref hir_ty, .. } => {
- let ty = icx.to_ty(hir_ty);
- if !tcx.features().const_compare_raw_pointers {
- let err = match ty.peel_refs().kind {
- ty::FnPtr(_) => Some("function pointers"),
- ty::RawPtr(_) => Some("raw pointers"),
- _ => None,
- };
- if let Some(unsupported_type) = err {
- feature_gate::feature_err(
- &tcx.sess.parse_sess,
- sym::const_compare_raw_pointers,
- hir_ty.span,
- &format!(
- "using {} as const generic parameters is unstable",
- unsupported_type
- ),
- )
- .emit();
- };
- }
- if ty::search_for_structural_match_violation(param.hir_id, param.span, tcx, ty)
- .is_some()
- {
- struct_span_err!(
+ Node::GenericParam(param) => match ¶m.kind {
+ hir::GenericParamKind::Type { default: Some(ref ty), .. } => icx.to_ty(ty),
+ hir::GenericParamKind::Const { ty: ref hir_ty, .. } => {
+ let ty = icx.to_ty(hir_ty);
+ if !tcx.features().const_compare_raw_pointers {
+ let err = match ty.peel_refs().kind {
+ ty::FnPtr(_) => Some("function pointers"),
+ ty::RawPtr(_) => Some("raw pointers"),
+ _ => None,
+ };
+ if let Some(unsupported_type) = err {
+ feature_gate::feature_err(
+ &tcx.sess.parse_sess,
+ sym::const_compare_raw_pointers,
+ hir_ty.span,
+ &format!(
+ "using {} as const generic parameters is unstable",
+ unsupported_type
+ ),
+ )
+ .emit();
+ };
+ }
+ if traits::search_for_structural_match_violation(param.hir_id, param.span, tcx, ty)
+ .is_some()
+ {
+ struct_span_err!(
tcx.sess,
hir_ty.span,
E0741,
"the types of const generic parameters must derive `PartialEq` and `Eq`",
- ).span_label(
+ )
+ .span_label(
hir_ty.span,
format!("`{}` doesn't derive both `PartialEq` and `Eq`", ty),
- ).emit();
- }
- ty
+ )
+ .emit();
}
- x => bug!("unexpected non-type Node::GenericParam: {:?}", x),
+ ty
}
- }
+ x => bug!("unexpected non-type Node::GenericParam: {:?}", x),
+ },
x => {
bug!("unexpected sort of node in type_of_def_id(): {:?}", x);
}
impl<'tcx> intravisit::Visitor<'tcx> for ConstraintLocator<'tcx> {
- fn nested_visit_map<'this>(&'this mut self) -> intravisit::NestedVisitorMap<'this, 'tcx> {
+ type Map = Map<'tcx>;
+
+ fn nested_visit_map(&mut self) -> intravisit::NestedVisitorMap<'_, Self::Map> {
intravisit::NestedVisitorMap::All(&self.tcx.hir())
}
fn visit_item(&mut self, it: &'tcx Item<'tcx>) {
mark_used(attr);
inline_span = Some(attr.span);
if items.len() != 1 {
- span_err!(tcx.sess.diagnostic(), attr.span, E0534, "expected one argument");
+ struct_span_err!(
+ tcx.sess.diagnostic(),
+ attr.span,
+ E0534,
+ "expected one argument"
+ )
+ .emit();
InlineAttr::None
} else if list_contains_name(&items[..], sym::always) {
InlineAttr::Always
} else if list_contains_name(&items[..], sym::never) {
InlineAttr::Never
} else {
- span_err!(tcx.sess.diagnostic(), items[0].span(), E0535, "invalid argument");
+ struct_span_err!(
+ tcx.sess.diagnostic(),
+ items[0].span(),
+ E0535,
+ "invalid argument"
+ )
+ .emit();
InlineAttr::None
}
if !attr.has_name(sym::optimize) {
return ia;
}
- let err = |sp, s| span_err!(tcx.sess.diagnostic(), sp, E0722, "{}", s);
+ let err = |sp, s| struct_span_err!(tcx.sess.diagnostic(), sp, E0722, "{}", s).emit();
match attr.meta().map(|i| i.kind) {
Some(MetaItemKind::Word) => {
err(attr.span, "expected one argument");
projects / rust.git / blobdiff