From 7bdf25269f6468a16fc2b6c760b15dacf9333451 Mon Sep 17 00:00:00 2001
From: Nathan Zimmerman <nate.m.zimmerman@gmail.com>
Date: Tue, 22 Sep 2020 23:27:13 -0500
Subject: [PATCH] Adding support for exponent / ** operator

---
 README.md       | 1 +
 lib/overload.js | 6 +++++-
 package.json    | 2 +-
 test/tests.js   | 7 +++++++
 4 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 8a21568..f86b3b8 100644
--- a/README.md
+++ b/README.md
@@ -127,6 +127,7 @@ Following are the operators which can be overloaded with the desired overload fu
 | 38 | &= | __andAssign | Assignment |
 | 39 | \|= | __orAssign | Assignment |
 | 40 | ^= | __xorAssign | Assignment |
+| 41 | `**` | __exponent | Binary |
 
 
 ##Design Consideration / Very IMP / Must Read##
diff --git a/lib/overload.js b/lib/overload.js
index 50192dd..02647dd 100644
--- a/lib/overload.js
+++ b/lib/overload.js
@@ -43,7 +43,8 @@ var funcNames = {
     '>>>=': '__zeroFillRightShiftAssign',
     '&=': '__andAssign',
     '|=': '__orAssign',
-    '^=': '__xorAssign'
+    '^=': '__xorAssign',
+    '**': '__exponent'
 };
 
 //The AST Walker And Transformer
@@ -353,6 +354,9 @@ cons.forEach(function (constructor) {
     defineDefaultProp(constructor, funcNames['^='], function (o) {
         return o ^= this;
     });
+    defineDefaultProp(constructor, funcNames['**'], function (o) {
+        return o ** this;
+    });	
 });
 /* jshint ignore:end */
 
diff --git a/package.json b/package.json
index 47ac272..a3357b8 100644
--- a/package.json
+++ b/package.json
@@ -36,6 +36,6 @@
   "homepage": "https://github.com/kushal-likhi/operator-overloading-js",
   "dependencies": {
     "escodegen": "^1.4.1",
-    "esprima": "^1.2.2"
+    "esprima": "^4.0.1"
   }
 }
diff --git a/test/tests.js b/test/tests.js
index ea89006..7570237 100644
--- a/test/tests.js
+++ b/test/tests.js
@@ -42,6 +42,13 @@ describe('Operator overloading Test Suite', function () {
             done();
         });
 
+        it('should overload ** operator', function (done) {
+            overload(function () {
+                assertEqual((33 ** 22), '33**22');
+            })();
+            done();
+        });
+
         it('should overload - operator', function (done) {
             overload(function () {
                 assertEqual((33 - 22), '33-22');