Switched esprima on espree. Obfuscation of export declarations

src/node/NodeGuards.ts

@@ -96,6 +96,14 @@ export class NodeGuards {
         return node.type === NodeType.ContinueStatement;
     }
 
+    /**
+     * @param {Node} node
+     * @returns {boolean}
+     */
+    public static isExportNamedDeclarationNode (node: ESTree.Node): node is ESTree.ExportNamedDeclaration {
+        return node.type === NodeType.ExportNamedDeclaration;
+    }
+
     /**
      * @param {Node} node
      * @returns {boolean}
@@ -136,6 +144,14 @@ export class NodeGuards {
         return node.type === NodeType.IfStatement;
     }
 
+    /**
+     * @param {Node} node
+     * @returns {boolean}
+     */
+    public static isImportDeclarationNode (node: ESTree.Node): node is ESTree.ImportDeclaration {
+        return node.type === NodeType.ImportDeclaration;
+    }
+
     /**
      * @param {Node} node
      * @param {Node} parentNode

src/node/NodeUtils.ts

@@ -1,5 +1,5 @@
 import * as escodegen from 'escodegen-wallaby';
-import * as esprima from 'esprima';
+import * as espree from 'espree';
 import * as estraverse from 'estraverse';
 import * as ESTree from 'estree';
 
@@ -44,7 +44,7 @@ export class NodeUtils {
      * @returns {Statement[]}
      */
     public static convertCodeToStructure (code: string): ESTree.Statement[] {
-        let structure: ESTree.Program = esprima.parseScript(code);
+        let structure: ESTree.Program = espree.parse(code, { sourceType: 'script' });
 
         structure = NodeUtils.addXVerbatimPropertyToLiterals(structure);
         structure = NodeUtils.parentize(structure);