From 4f5cab7f4cf8a31be6e7a448f29b599f1e2a83fd Mon Sep 17 00:00:00 2001
From: kerwin612 <kerwin612@qq.com>
Date: Fri, 11 Mar 2022 16:32:04 +0800
Subject: [PATCH] fix: autonumber bug

---
 src/diagrams/sequence/sequenceDb.js           |  1 +
 src/diagrams/sequence/sequenceDiagram.spec.js | 20 +++++++++++++++++++
 src/mermaidAPI.js                             |  1 +
 3 files changed, 22 insertions(+)
 mode change 100755 => 100644 src/mermaidAPI.js

diff --git a/src/diagrams/sequence/sequenceDb.js b/src/diagrams/sequence/sequenceDb.js
index 7492e6d11..60a07a2e3 100644
--- a/src/diagrams/sequence/sequenceDb.js
+++ b/src/diagrams/sequence/sequenceDb.js
@@ -139,6 +139,7 @@ export const autoWrap = () => wrapEnabled;
 export const clear = function () {
   actors = {};
   messages = [];
+  sequenceNumbersEnabled = false;
 };
 
 export const parseMessage = function (str) {
diff --git a/src/diagrams/sequence/sequenceDiagram.spec.js b/src/diagrams/sequence/sequenceDiagram.spec.js
index 437e0e6e9..c20dc54a4 100644
--- a/src/diagrams/sequence/sequenceDiagram.spec.js
+++ b/src/diagrams/sequence/sequenceDiagram.spec.js
@@ -1619,4 +1619,24 @@ participant Alice
       models.lastActor().y + models.lastActor().height + mermaid.sequence.boxMargin
     );
   });
+  it('it should hide sequence numbers when autonumber is removed when autonumber is enabled', function () {
+    const str1 = `
+sequenceDiagram
+autonumber
+Alice->Bob:Hello Bob, how are you?
+Note right of Bob: Bob thinks
+Bob-->Alice: I am good thanks!`;
+
+    mermaidAPI.parse(str1);
+    expect(parser.yy.showSequenceNumbers()).toBe(true);
+
+    const str2 = `
+sequenceDiagram
+Alice->Bob:Hello Bob, how are you?
+Note right of Bob: Bob thinks
+Bob-->Alice: I am good thanks!`;
+
+    mermaidAPI.parse(str2);
+    expect(parser.yy.showSequenceNumbers()).toBe(false);
+  });
 });
diff --git a/src/mermaidAPI.js b/src/mermaidAPI.js
old mode 100755
new mode 100644
index 06eaa3ce3..9d1b18b71
--- a/src/mermaidAPI.js
+++ b/src/mermaidAPI.js
@@ -94,6 +94,7 @@ function parse(text) {
       parser.parser.yy = flowDb;
       break;
     case 'sequence':
+      sequenceDb.clear();
       parser = sequenceParser;
       parser.parser.yy = sequenceDb;
       break;