[libc-commits] [libc] [clang-tools-extra] [libcxx] [compiler-rt] [clang] [llvm] [flang] [C23] Complete support for WG14 N2508 (PR #71398)
via libc-commits
libc-commits at lists.llvm.org
Mon Nov 6 16:30:33 PST 2023
================
@@ -698,6 +695,19 @@ StmtResult Parser::ParseSEHLeaveStatement() {
return Actions.ActOnSEHLeaveStmt(LeaveLoc, getCurScope());
}
+static void DiagnoseLabelFollowedByDecl(Parser &P, const Stmt *SubStmt) {
+ // When in C mode (but not Microsoft extensions mode), diagnose use of a
+ // label that is followed by a declaration rather than a statement.
+ if (!P.getLangOpts().CPlusPlus && !P.getLangOpts().MicrosoftExt &&
+ isa<DeclStmt>(SubStmt)) {
+ if (P.getLangOpts().C23)
+ P.Diag(SubStmt->getBeginLoc(),
+ diag::warn_c23_compat_label_followed_by_declaration);
+ else
+ P.Diag(SubStmt->getBeginLoc(), diag::ext_c_label_followed_by_declaration);
+ }
----------------
cor3ntin wrote:
```suggestion
P.Diag(SubStmt->getBeginLoc(), P.getLangOpts().C23 ?
diag::warn_c23_compat_label_followed_by_declaration
: diag::ext_c_label_followed_by_declaration);
```
https://github.com/llvm/llvm-project/pull/71398
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