diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/rust/typecheck/rust-tyty.cc | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/gcc/rust/typecheck/rust-tyty.cc b/gcc/rust/typecheck/rust-tyty.cc index f0c967e..02d91b1 100644 --- a/gcc/rust/typecheck/rust-tyty.cc +++ b/gcc/rust/typecheck/rust-tyty.cc @@ -2226,12 +2226,24 @@ void ClosureType::setup_fn_once_output () const { // lookup the lang items - auto fn_once_lang_item = LangItem::Kind::FN_ONCE; - auto fn_once_output_lang_item = LangItem::Kind::FN_ONCE_OUTPUT; + auto fn_once_lookup = mappings.lookup_lang_item (LangItem::Kind::FN_ONCE); + auto fn_once_output_lookup + = mappings.lookup_lang_item (LangItem::Kind::FN_ONCE_OUTPUT); + if (!fn_once_lookup) + { + rust_fatal_error (UNKNOWN_LOCATION, + "Missing required %<fn_once%> lang item"); + return; + } + if (!fn_once_output_lookup) + { + rust_fatal_error (UNKNOWN_LOCATION, + "Missing required %<fn_once_ouput%> lang item"); + return; + } - DefId &trait_id = mappings.lookup_lang_item (fn_once_lang_item).value (); - DefId &trait_item_id - = mappings.lookup_lang_item (fn_once_output_lang_item).value (); + DefId &trait_id = fn_once_lookup.value (); + DefId &trait_item_id = fn_once_output_lookup.value (); // resolve to the trait HIR::Item *item = mappings.lookup_defid (trait_id).value (); |