fix crash

cor3ntin · cor3ntin · commit 0f2b7818aea2 · 2024-07-13T12:00:07.000+02:00
diff --git a/clang/lib/Sema/SemaConcept.cpp b/clang/lib/Sema/SemaConcept.cpp
@@ -1602,6 +1602,8 @@ NormalizedConstraint::fromConstraintExpr(Sema &S, NamedDecl *D, const Expr *E) {
                                                            : CCK_Disjunction);
     }
     auto Sub = fromConstraintExpr(S, D, FE->getPattern());
+    if (!Sub)
+      return std::nullopt;
     return NormalizedConstraint{new (S.Context) FoldExpandedConstraint{
         Kind, std::move(*Sub), FE->getPattern()}};
   }

Original file line number	Diff line number	Diff line change
`@@ -1602,6 +1602,8 @@ NormalizedConstraint::fromConstraintExpr(Sema &S, NamedDecl D, const Expr E) {`
`1602`	`1602`	`: CCK_Disjunction);`
`1603`	`1603`	`}`
`1604`	`1604`	`auto Sub = fromConstraintExpr(S, D, FE->getPattern());`
	`1605`	`+ if (!Sub)`
	`1606`	`+ return std::nullopt;`
`1605`	`1607`	`return NormalizedConstraint{new (S.Context) FoldExpandedConstraint{`
`1606`	`1608`	`Kind, std::move(*Sub), FE->getPattern()}};`
`1607`	`1609`	`}`