================
@@ -3330,6 +3340,118 @@ void Parser::DistributeCLateParsedAttrs(Decl *Dcl,
}
}
+/// GuardedBy attributes (e.g., guarded_by):
+/// AttrName '(' expression ')'
+void Parser::ParseGuardedByAttribute(
+ IdentifierInfo &AttrName, SourceLocation AttrNameLoc,
+ ParsedAttributes &Attrs, IdentifierInfo *ScopeName, SourceLocation
ScopeLoc,
+ SourceLocation *EndLoc, ParsedAttr::Form Form) {
+ assert(Tok.is(tok::l_paren) && "Attribute arg list not starting with '('");
+
+ BalancedDelimiterTracker Parens(*this, tok::l_paren);
+ Parens.consumeOpen();
+
+ if (Tok.is(tok::r_paren)) {
+ Diag(Tok.getLocation(), diag::err_argument_required_after_attribute);
+ Parens.consumeClose();
+ return;
+ }
+
+ ArgsVector ArgExprs;
+ // Don't evaluate argument when the attribute is ignored.
+ using ExpressionKind =
+ Sema::ExpressionEvaluationContextRecord::ExpressionKind;
+ EnterExpressionEvaluationContext EC(
+ Actions,
+ getLangOpts().CPlusPlus
+ ? Sema::ExpressionEvaluationContext::Unevaluated
+ : Sema::ExpressionEvaluationContext::PotentiallyEvaluated,
----------------
hnrklssn wrote:
Why does C need to parse using `PotentiallyEvaluated` while C++ needs
`Unevaluated`? What happens if we parse using `Unevaluted` in C?
https://github.com/llvm/llvm-project/pull/95455
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