From 11e2dcd96c830ee934fa7b0243f4d67d8a8821ab Mon Sep 17 00:00:00 2001
From: Nikita Popov <nikita.ppv@gmail.com>
Date: Fri, 19 May 2023 22:17:09 +0200
Subject: [PATCH] Add makeReadonly() to param builder

---
 lib/PhpParser/Builder/Param.php      | 17 ++++++++++++++---
 test/PhpParser/Builder/ParamTest.php | 12 ++++++++++++
 2 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/lib/PhpParser/Builder/Param.php b/lib/PhpParser/Builder/Param.php
index f86d2ac06b..69f353326a 100644
--- a/lib/PhpParser/Builder/Param.php
+++ b/lib/PhpParser/Builder/Param.php
@@ -98,7 +98,7 @@ public function makeVariadic() {
     }
 
     /**
-     * Makes the parameter public.
+     * Makes the (promoted) parameter public.
      *
      * @return $this The builder instance (for fluid interface)
      */
@@ -109,7 +109,7 @@ public function makePublic() {
     }
 
     /**
-     * Makes the parameter protected.
+     * Makes the (promoted) parameter protected.
      *
      * @return $this The builder instance (for fluid interface)
      */
@@ -120,7 +120,7 @@ public function makeProtected() {
     }
 
     /**
-     * Makes the parameter private.
+     * Makes the (promoted) parameter private.
      *
      * @return $this The builder instance (for fluid interface)
      */
@@ -130,6 +130,17 @@ public function makePrivate() {
         return $this;
     }
 
+    /**
+     * Makes the (promoted) parameter readonly.
+     *
+     * @return $this The builder instance (for fluid interface)
+     */
+    public function makeReadonly() {
+        $this->flags = BuilderHelpers::addModifier($this->flags, Node\Stmt\Class_::MODIFIER_READONLY);
+
+        return $this;
+    }
+
     /**
      * Adds an attribute group.
      *
diff --git a/test/PhpParser/Builder/ParamTest.php b/test/PhpParser/Builder/ParamTest.php
index bbee164d32..7c6ca4f180 100644
--- a/test/PhpParser/Builder/ParamTest.php
+++ b/test/PhpParser/Builder/ParamTest.php
@@ -241,6 +241,18 @@ public function testMakePrivate() {
         );
     }
 
+    public function testMakeReadonly() {
+        $node = $this->createParamBuilder('test')
+            ->makeReadonly()
+            ->getNode()
+        ;
+
+        $this->assertEquals(
+            new Node\Param(new Expr\Variable('test'), null, null, false, false, [], Node\Stmt\Class_::MODIFIER_READONLY),
+            $node
+        );
+    }
+
     public function testAddAttribute() {
         $attribute = new Attribute(
             new Name('Attr'),