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This should remove a use-after-free as well as simplify the FFI interface. gcc/rust/ChangeLog: * ast/rust-fmt.cc (Pieces::collect): Handle changes to ffi interface. (Pieces::~Pieces): Remove function definition. (Pieces::Pieces): Likewise. (Pieces::operator=): Likewise. * ast/rust-fmt.h: Include "optional.h". (rust_ffi_alloc): New extern "C" function declaration. (rust_ffi_dealloc): Likewise. (class FFIVec): New class. (class FFIOpt): Likewise. (RustHamster::RustHamster): New constructor accepting const std::string reference. (struct FormatSpec): Use FFIOpt. (struct PieceSlice): Remove struct. (struct RustString): Likewise. (struct FormatArgsHandle): Likewise. (collect_pieces): Change function signature. (clone_pieces): Likewise. (destroy_pieces): Remove extern "C" function declaration. (Pieces::~Pieces): Remove function declaration. (Pieces::operator=): Likewise. (Pieces::get_pieces): Handle changes to class fields. (Pieces::Pieces): Remove copy and move constructor declarations, adjust signature of remaining constructor declaration. (Pieces::pieces_vector): Remove member variable. (Pieces::handle): Likewise. (Pieces::data): Add member variable. * expand/rust-macro-builtins-asm.cc (expand_inline_asm_strings): Use references to avoid copying. libgrust/ChangeLog: * libformat_parser/src/lib.rs (struct FFIVec): New. (trait StringLeakExt): Remove. (struct FFIOpt): New. (trait IntoFFI): Adjust implementation for Option. (struct RustHamster): Add lifetime and adjust conversion to and from &str. (enum Piece): Adjust definition to handle changes to RustHamster. (struct Argument): Likewise. (struct FormatSpec): Use FFIOpt and RustHamster. (enum Position): Use RustHamster. (enum Count): Likewise. (struct PieceSlice): Replace with... (typedef PieceVec): ...this. (struct RustString): Remove. (struct FormatArgsHandle): Likewise. (fn collect_pieces): Adjust signature, greatly simplifying implementation. (fn clone_pieces): Likewise. (fn destroy_pieces): Remove. (trait LayoutExt): New. (fn rust_ffi_alloc): New. (fn rust_ffi_dealloc): New. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.