From 3508061607ea14665ea7efe240b0eb92769b1554 Mon Sep 17 00:00:00 2001
From: XieHan <XieHan@sogou-inc.com>
Date: Wed, 11 May 2022 17:00:30 +0800
Subject: [PATCH] add an assert()

---
 src/factory/Workflow.cc | 1 +
 src/factory/Workflow.h  | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/factory/Workflow.cc b/src/factory/Workflow.cc
index 32cdd385..dd3cbe7c 100644
--- a/src/factory/Workflow.cc
+++ b/src/factory/Workflow.cc
@@ -33,6 +33,7 @@ SeriesWork::SeriesWork(SubTask *first, series_callback_t&& cb) :
 	this->back = 0;
 	this->in_parallel = false;
 	this->canceled = false;
+	assert(!series_of(first));
 	first->set_pointer(this);
 	this->first = first;
 	this->last = NULL;
diff --git a/src/factory/Workflow.h b/src/factory/Workflow.h
index a3f5b655..e9bf953b 100644
--- a/src/factory/Workflow.h
+++ b/src/factory/Workflow.h
@@ -105,7 +105,7 @@ public:
 	}
 
 public:
-	/* Call only in tasks' done() implementation. */
+	/* Call only in tasks' done() implementations. */
 	SubTask *pop();
 
 public: