[PATCH] D99896: Rework the way statement attributes are processed; NFC
Aaron Ballman via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Mon Apr 5 13:18:35 PDT 2021
aaron.ballman added a comment.
In D99896#2669471 <https://reviews.llvm.org/D99896#2669471>, @erichkeane wrote:
> It is really sad that the attributes can't 'auto transform' themselves. ParsedAttr could (since it has a union of expressions/identifiers), but we don't really seem to have a good way to do it for Attr.
>
> Could we possibly do some table-gen to auto create the 'simple' ones? Basically, any parameter to an attribute that is an 'expr' gets auto-transformed? Similar to how we have handleSimpleAttr, we could have TransformSimpleAttr (or, a generated one).
I think that's likely plausible, though as a follow-up. We have enough declaration attributes with template instantiation that I'd probably start with those and do statement attributes in a second cleanup.
================
Comment at: clang/lib/Sema/TreeTransform.h:1316
Stmt *SubStmt) {
- return SemaRef.ActOnAttributedStmt(AttrLoc, Attrs, SubStmt);
+ return SemaRef.BuildAttributedStmt(AttrLoc, Attrs, SubStmt);
}
----------------
erichkeane wrote:
> Am I missing where the attributes themselves are being rebuilt/transformed??
>
>
The transformation happens in `TreeTransform<Derived>::TransformAttributedStmt()` which calls `RebuildAttributedStmt()` with the rebuilt attributes.
Repository:
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https://reviews.llvm.org/D99896/new/
https://reviews.llvm.org/D99896
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