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From: Arthur Cohen <cohenarthur@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r13-5546] gccrs: Add guards against getting data from an empty vector Date: Tue, 31 Jan 2023 13:15:17 +0000 (GMT) [thread overview] Message-ID: <20230131131517.9D153385AC29@sourceware.org> (raw) https://gcc.gnu.org/g:245ce6f26a1688ad69a1802ec50fa865db409eec commit r13-5546-g245ce6f26a1688ad69a1802ec50fa865db409eec Author: Philip Herron <philip.herron@embecosm.com> Date: Fri Aug 26 20:52:35 2022 +0100 gccrs: Add guards against getting data from an empty vector gcc/rust/ChangeLog: * typecheck/rust-tyctx.cc (TypeCheckContext::pop_return_type): Add guards around `std::vector<T>.pop_back()`. (TypeCheckContext::peek_context): Likewise for `std::vector<T>.back()`. Diff: --- gcc/rust/typecheck/rust-tyctx.cc | 2 ++ 1 file changed, 2 insertions(+) diff --git a/gcc/rust/typecheck/rust-tyctx.cc b/gcc/rust/typecheck/rust-tyctx.cc index ad5f67cc1dd..af86b064c6c 100644 --- a/gcc/rust/typecheck/rust-tyctx.cc +++ b/gcc/rust/typecheck/rust-tyctx.cc @@ -142,12 +142,14 @@ TypeCheckContext::push_return_type (TypeCheckContextItem item, void TypeCheckContext::pop_return_type () { + rust_assert (!return_type_stack.empty ()); return_type_stack.pop_back (); } TypeCheckContextItem & TypeCheckContext::peek_context () { + rust_assert (!return_type_stack.empty ()); return return_type_stack.back ().first; }
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