[clang][Sema] Null-check type in resolveMemberExpr() before checking for auto type

HighCommander4 · HighCommander4 · commit 5ecde7be7265 · 2025-01-27T16:08:45.000-05:00
diff --git a/clang/lib/Sema/HeuristicResolver.cpp b/clang/lib/Sema/HeuristicResolver.cpp
@@ -242,6 +242,8 @@ std::vector<const NamedDecl *> HeuristicResolverImpl::resolveMemberExpr(
       BaseType = resolveExprToType(Base);
     }
   }
+  if (BaseType.isNull())
+    return {};
   if (const auto *AT = BaseType->getContainedAutoType()) {
     // If BaseType contains a dependent `auto` type, deduction will not have
     // been performed on it yet. In simple cases (e.g. `auto` variable with

Original file line number	Diff line number	Diff line change
`@@ -242,6 +242,8 @@ std::vector<const NamedDecl *> HeuristicResolverImpl::resolveMemberExpr(`
`242`	`242`	`BaseType = resolveExprToType(Base);`
`243`	`243`	`}`
`244`	`244`	`}`
	`245`	`+ if (BaseType.isNull())`
	`246`	`+ return {};`
`245`	`247`	`if (const auto *AT = BaseType->getContainedAutoType()) {`
`246`	`248`	// If BaseType contains a dependent `auto` type, deduction will not have
`247`	`249`	// been performed on it yet. In simple cases (e.g. `auto` variable with