[clang] [BoundsSafety][Sema] Allow counted_by and counted_by_or_null on pointers where the pointee type is incomplete but potentially completable (PR #106321)
Dan Liew via cfe-commits
cfe-commits at lists.llvm.org
Thu Oct 24 08:40:45 PDT 2024
================
@@ -186,4 +218,370 @@ bool Sema::CheckCountedByAttrOnField(FieldDecl *FD, Expr *E, bool CountInBytes,
return false;
}
+SourceRange Sema::BoundsSafetySourceRangeFor(const CountAttributedType *CATy) {
+ // Note: This implementation relies on `CountAttributedType` being unique.
+ // E.g.:
+ //
+ // struct Foo {
+ // int count;
+ // char* __counted_by(count) buffer;
+ // char* __counted_by(count) buffer2;
+ // };
+ //
+ // The types of `buffer` and `buffer2` are unique. The types being
+ // unique means the SourceLocation of the `counted_by` expression can be used
+ // to find where the attribute was written.
+
+ auto Fallback = CATy->getCountExpr()->getSourceRange();
----------------
delcypher wrote:
This method's implementation has been completely changed so this isn't relevant anymore.
https://github.com/llvm/llvm-project/pull/106321
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