fix: empty buffer merge error list failed

tau233 · pansgg · commit 8bff21d12286 · 2022-12-19T16:42:40.000+08:00
diff --git a/src/libmodelbox/engine/data_context.cc b/src/libmodelbox/engine/data_context.cc
@@ -781,7 +781,7 @@ Status FlowUnitDataContext::GenerateOutput() {
     // merge buffer by input index
     auto compare = [](const std::shared_ptr<Buffer> &b1,
                       const std::shared_ptr<Buffer> &b2) {
-      if (b1 == nullptr) {
+      if (b1 == nullptr || b2 == nullptr) {
         // condition output, will be removed in node stream manage
         return true;
       }

Original file line number	Diff line number	Diff line change
`@@ -781,7 +781,7 @@ Status FlowUnitDataContext::GenerateOutput() {`
`781`	`781`	`// merge buffer by input index`
`782`	`782`	`auto compare = [](const std::shared_ptr<Buffer> &b1,`
`783`	`783`	`const std::shared_ptr<Buffer> &b2) {`
`784`		`- if (b1 == nullptr) {`
	`784`	`+ if (b1 == nullptr \|\| b2 == nullptr) {`
`785`	`785`	`// condition output, will be removed in node stream manage`
`786`	`786`	`return true;`
`787`	`787`	`}`