Finished migrating parser to be object orientation free. All tests pass

app/imports/parser/parseTree/not.js

@@ -0,0 +1,37 @@
+import resolve, { toString, traverse } from '../resolve.js';
+import constant from './constant.js';
+
+const not = {
+  create({right}) {
+    return {
+      parseType: 'not',
+      right,
+    }
+  },
+  resolve(fn, node, scope, context){
+    const {result: right} = resolve(fn, node.right, scope, context);
+    if (right.parseType !== 'constant'){
+      return {
+        result: not.create({
+          right: right,
+        }),
+        context,
+      };
+    }
+    return {
+      result: constant.create({
+        value: !right.value,
+      }),
+      context,
+    };
+  },
+  toString(node){
+    return `!${toString(node.right)}`;
+  },
+  traverse(node, fn){
+    fn(node);
+    traverse(node.right, fn);
+  }
+}
+
+export default not;