diff options
| author | Owen Avery <powerboat9.gamer@gmail.com> | 2025-07-15 12:04:53 -0400 |
|---|---|---|
| committer | Arthur Cohen <arthur.cohen@embecosm.com> | 2025-08-05 16:37:03 +0200 |
| commit | 9938133aca92cdab34b9c979162f3626244e57a6 (patch) | |
| tree | cd944fd97ceec849cc6595c5ff503e5a87303181 | |
| parent | 95c619976ff94dff1b84a5cff7e65a640d667996 (diff) | |
| download | gcc-9938133aca92cdab34b9c979162f3626244e57a6.zip gcc-9938133aca92cdab34b9c979162f3626244e57a6.tar.gz gcc-9938133aca92cdab34b9c979162f3626244e57a6.tar.bz2 | |
gccrs: Remove undefined behavior with static_cast
gcc/rust/ChangeLog:
* expand/rust-macro-builtins-helpers.cc
(try_extract_string_literal_from_fragment): Perform static_cast
to AST::LiteralExpr only after it's verified that an AST::Expr
is a literal.
Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
| -rw-r--r-- | gcc/rust/expand/rust-macro-builtins-helpers.cc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/rust/expand/rust-macro-builtins-helpers.cc b/gcc/rust/expand/rust-macro-builtins-helpers.cc index 19af5df..ee01f65 100644 --- a/gcc/rust/expand/rust-macro-builtins-helpers.cc +++ b/gcc/rust/expand/rust-macro-builtins-helpers.cc @@ -111,9 +111,9 @@ std::unique_ptr<AST::LiteralExpr> try_extract_string_literal_from_fragment (const location_t &parent_locus, std::unique_ptr<AST::Expr> &node) { - auto maybe_lit = static_cast<AST::LiteralExpr *> (node.get ()); if (!node || !node->is_literal () - || maybe_lit->get_lit_type () != AST::Literal::STRING) + || static_cast<AST::LiteralExpr &> (*node).get_lit_type () + != AST::Literal::STRING) { rust_error_at (parent_locus, "argument must be a string literal"); if (node) |