From d0e5cd3bee62a966f5f44f6b07fc5d7a01a32714 Mon Sep 17 00:00:00 2001
From: Christian Zosel <christian@zosel.ch>
Date: Sun, 10 May 2020 21:56:44 +0200
Subject: [PATCH] fix(precedence): right-associative operators

---
 src/ast.js              | 3 ++-
 test/precedence.test.js | 3 +++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/ast.js b/src/ast.js
index de87fee8b..bff1c2959 100644
--- a/src/ast.js
+++ b/src/ast.js
@@ -239,7 +239,8 @@ AST.prototype.resolvePrecedence = function (result, parser) {
           lLevel &&
           rLevel &&
           rLevel <= lLevel &&
-          !this.isRightAssociative(result.type)
+          (result.type !== result.right.type ||
+            !this.isRightAssociative(result.type))
         ) {
           // https://github.com/glayzzle/php-parser/issues/79
           // shift precedence
diff --git a/test/precedence.test.js b/test/precedence.test.js
index d759848bc..3eabd0a76 100644
--- a/test/precedence.test.js
+++ b/test/precedence.test.js
@@ -89,6 +89,9 @@ describe("Test precedence", function () {
   it("test ?? right-associative", function () {
     shouldBeSame("1 ?? 2 ?? 3", "1 ?? (2 ?? 3)");
   });
+  it("test ** precedence", function () {
+    shouldBeSame("1 ** 2 + 3", "(1 ** 2) + 3");
+  });
   it("test ** right-associative", function () {
     shouldBeSame("1 ** 2 ** 3", "1 ** (2 ** 3)");
   });