gccrs: improve mutability checks #3311
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This ensures that we handle var decls readonly checks much better Addresses: #807 #3287 gcc/rust/ChangeLog: * checks/errors/rust-readonly-check.cc (check_decl): improve mut check (emit_error): helper (check_modify_expr): likewise (readonly_walk_fn): reuse helper (ReadonlyCheck::Lint): cleanup context each run gcc/testsuite/ChangeLog: * rust/execute/torture/builtin_macro_include_bytes.rs: needs mut * rust/compile/mutability_checks1.rs: New test. Signed-off-by: Philip Herron <[email protected]>
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This ensures that we handle var decls readonly checks much better
Addresses: #807 #3287
gcc/rust/ChangeLog:
gcc/testsuite/ChangeLog: