No param in CatchClause should not crash

ternjs · Sep 6, 2019 · 556f555 · 556f555
1 parent 9ddff4c
commit 556f555
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/lib/infer.js b/lib/infer.js
@@ -1134,6 +1134,7 @@
       walk.base.BlockStatement(node, scope, c);
     },
     CatchClause: function(node, scope, c) {
+      if (!node.param) { return; }
       scope = node.scope = new Scope(scope, node, false, true);
       if (node.param.type == "Identifier") {
         var v = addVar(scope, node.param);