Fix transpilation

Author: Herklos

.gitignore

@@ -32,6 +32,7 @@ python/package.json
 python/keys.json
 python/LICENSE.txt
 __pycache__
+rust/target
 .env
 *.swp
 .cache

build/rustAstWalk.ts

@@ -29,6 +29,9 @@ function baseWalker<TState>(node: Node, state: TState, c: (child: Node, state: T
 
 export function walkRecursive<TState>(node: Node, state: TState, visitors: Visitors<TState>) {
     const visit = (n: Node, s: TState) => {
+        if (!isNode(n)) {
+            return;
+        }
         const handler = visitors[n.type];
         if (handler) {
             handler(n, s, visit);