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| author | Philip Herron <herron.philip@googlemail.com> | 2025-02-03 15:14:01 +0000 |
|---|---|---|
| committer | Philip Herron <philip.herron@embecosm.com> | 2025-02-03 19:20:22 +0000 |
| commit | 9449c935b39d963f62be2a41df91671fc163685b (patch) | |
| tree | 778ce0df463a43e625e31b9cf46cbd933c06102d /gcc | |
| parent | 668c3bf7b7b45f8cea7a09515b6420cece877881 (diff) | |
| download | gcc-9449c935b39d963f62be2a41df91671fc163685b.zip gcc-9449c935b39d963f62be2a41df91671fc163685b.tar.gz gcc-9449c935b39d963f62be2a41df91671fc163685b.tar.bz2 | |
gccrs: Fix ICE when fn_once and fn_once_output lang item is not defined
We needed to check for the optional has a value here or not it leads to an
ICE.
gcc/rust/ChangeLog:
* typecheck/rust-tyty.cc (ClosureType::setup_fn_once_output): add checks for lang items
Signed-off-by: Philip Herron <herron.philip@googlemail.com>
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 116c1ab..193217b 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 (); |