Updated escodegen, fixed https://github.com/javascript-obfuscator/javascript-obfuscator/issues/638, added test

test/dev/dev.ts

@@ -7,17 +7,9 @@ import { NO_ADDITIONAL_NODES_PRESET } from '../../src/options/presets/NoCustomNo
 
     let obfuscatedCode: string = JavaScriptObfuscator.obfuscate(
         `
-            (function () {
-                const foo = {
-                    prop1: 1,
-                    prop2: 2,
-                    calc: function () {
-                        return this.prop1 + this.prop2;
-                    }
-                };
-                
-                console.log(foo.calc());
-            })();
+            class Foo {
+                [(1, Symbol.asyncIterator)]() {}
+            }
         `,
         {
             ...NO_ADDITIONAL_NODES_PRESET,

test/functional-tests/javascript-obfuscator/JavaScriptObfuscator.spec.ts

@@ -571,6 +571,30 @@ describe('JavaScriptObfuscator', () => {
             });
         });
 
+        /**
+         * https://github.com/estools/escodegen/pull/415
+         */
+        describe('Precedence of `SequenceExpression` in computed property', () => {
+            const regExp: RegExp = /class Foo *{ *\[\(bar, *baz\)]\(\) *{ *} * *}/;
+
+            let obfuscatedCode: string;
+
+            beforeEach(() => {
+                const code: string = readFileAsString(__dirname + '/fixtures/precedence-of-sequence-expression-in-computed-property.js');
+
+                obfuscatedCode = JavaScriptObfuscator.obfuscate(
+                    code,
+                    {
+                        ...NO_ADDITIONAL_NODES_PRESET
+                    }
+                ).getObfuscatedCode();
+            });
+
+            it('should generate a valid js code', () => {
+                assert.match(obfuscatedCode, regExp);
+            });
+        });
+
         describe('new.target MetaProperty', () => {
             const regExp: RegExp = /new\.target *=== *Foo/;
 

test/functional-tests/javascript-obfuscator/fixtures/precedence-of-sequence-expression-in-computed-property.js

@@ -0,0 +1,3 @@
+class Foo {
+    [(bar, baz)]() {}
+}