fix(material/schematics): add undefined check (#26081)

* potential fix for issue #26038
angular · Nov 28, 2022 · 3c03ad4 · 3c03ad4
1 parent 936741c
commit 3c03ad4
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/src/material/schematics/ng-generate/mdc-migration/rules/tree-traversal.ts b/src/material/schematics/ng-generate/mdc-migration/rules/tree-traversal.ts
@@ -164,10 +164,13 @@ export function updateAttribute(
   }
 
   const attr = node.attributes[0];
-  const ctx = attr.sourceSpan.start.getContext(attr.sourceSpan.start.col + 1, 1)!;
-  const indentation = ctx.before;
+  if (attr) {
+    const ctx = attr.sourceSpan.start.getContext(attr.sourceSpan.start.col + 1, 1)!;
+    const indentation = ctx.before;
+    return prefix + indentation + attrText + suffix;
+  }
 
-  return prefix + indentation + attrText + suffix;
+  return prefix + attrText + suffix;
 }
 
 /**