diff options
Diffstat (limited to 'compiler/rustc_middle/src/ty/context.rs')
| -rw-r--r-- | compiler/rustc_middle/src/ty/context.rs | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index aa2494a4f61..66d1335e763 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -3377,6 +3377,11 @@ impl<'tcx> TyCtxt<'tcx> { self.resolutions(()).module_children.get(&def_id).map_or(&[], |v| &v[..]) } + /// Return the crate imported by given use item. + pub fn extern_mod_stmt_cnum(self, def_id: LocalDefId) -> Option<CrateNum> { + self.resolutions(()).extern_crate_map.get(&def_id).copied() + } + pub fn resolver_for_lowering(self) -> &'tcx Steal<(ty::ResolverAstLowering, Arc<ast::Crate>)> { self.resolver_for_lowering_raw(()).0 } @@ -3414,6 +3419,20 @@ impl<'tcx> TyCtxt<'tcx> { pub fn do_not_recommend_impl(self, def_id: DefId) -> bool { self.get_diagnostic_attr(def_id, sym::do_not_recommend).is_some() } + + /// Whether this def is one of the special bin crate entrypoint functions that must have a + /// monomorphization and also not be internalized in the bin crate. + pub fn is_entrypoint(self, def_id: DefId) -> bool { + if self.is_lang_item(def_id, LangItem::Start) { + return true; + } + if let Some((entry_def_id, _)) = self.entry_fn(()) + && entry_def_id == def_id + { + return true; + } + false + } } /// Parameter attributes that can only be determined by examining the body of a function instead @@ -3432,8 +3451,6 @@ pub struct DeducedParamAttrs { } pub fn provide(providers: &mut Providers) { - providers.extern_mod_stmt_cnum = - |tcx, id| tcx.resolutions(()).extern_crate_map.get(&id).cloned(); providers.is_panic_runtime = |tcx, LocalCrate| contains_name(tcx.hir_krate_attrs(), sym::panic_runtime); providers.is_compiler_builtins = |