Limiting the number of edges that are allowed in the flowchart

mermaid-js · Oct 25, 2023 · fc28c1d · lix0x7 · Nov 24, 2023 · fc28c1d
1 parent 3957575
commit fc28c1d
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Showing 2 changed files with 24 additions and 5 deletions.
diff --git a/cypress/platform/knsv2.html b/cypress/platform/knsv2.html
@@ -58,10 +58,19 @@
   </head>
   <body>
     <pre id="diagram" class="mermaid">
-flowchart-elk LR
-   subgraph example
-     node
-   end
+flowchart TB
+    C & D & E & F & G & H & I & J & K & L & M & N & O & P & Q & R & S & T & U & V & W & X & Y & Z & A1 & A2 & A3 & A4 & A5 & A6 & A7 & A8
+      ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------->
+    C & D & E & F & G & H & I & J & K & L & M & N & O & P & Q & R & S & T & U & V & W & X & Y & Z & A1 & A2 & A3 & A4 & A5 & A6 & A7 & A8
+
+    </pre>
+    <pre id="diagram" class="mermaid2">
+    flowchart TB
+      A & A & A & A & A & A & A & A --->  C & D & E & F & G & H & I & J & K & L & M & N & O & P & Q & R & S & T & U & V & W & X & Y & Z
+    </pre>
+    <pre id="diagram" class="mermaid2">
+    flowchart TB
+      A1 & A2 & A3 & A4 & A5 & A6 & A7 & A8 -->  C & D & E & F & G & H & I & J & K & L & M & N & O & P & Q & R & S & T & U & V & W & X & Y & Z
     </pre>
     <pre id="diagram" class="mermaid2">
 flowchart
@@ -441,6 +450,7 @@
           messageFontFamily: 'courier',
         },
         fontSize: 16,
+        logLevel: 0,
       });
       function callback() {
         alert('It worked');

diff --git a/packages/mermaid/src/diagrams/flowchart/flowDb.js b/packages/mermaid/src/diagrams/flowchart/flowDb.js
@@ -12,6 +12,7 @@ import {
   setDiagramTitle,
   getDiagramTitle,
 } from '../common/commonDb.js';
+import errorDiagram from '../error/errorDiagram.js';
 
 const MERMAID_DOM_ID_PREFIX = 'flowchart-';
 let vertexCounter = 0;
@@ -156,7 +157,15 @@ export const addSingleLink = function (_start, _end, type) {
     edge.stroke = type.stroke;
     edge.length = type.length;
   }
-  edges.push(edge);
+  if (edge?.length > 10) {
+    edge.length = 10;
+  }
+  if (edges.length < 280) {
+    log.info('abc78 pushing edge...');
+    edges.push(edge);
+  } else {
+    throw new Error('Too many edges');
+  }
 };
 export const addLink = function (_start, _end, type) {
   log.info('addLink (abc78)', _start, _end, type);