From 70c96493b4caa5514b45429ec5fe6f412ea6cde6 Mon Sep 17 00:00:00 2001
From: Nikita Popov <nikita.ppv@gmail.com>
Date: Sat, 2 Mar 2024 18:59:44 +0100
Subject: [PATCH] Fix indentation detection after opening tag

Fixes #982.
---
 lib/PhpParser/Internal/TokenStream.php     |  6 +++++-
 test/code/formatPreservation/comments.test | 11 +++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/lib/PhpParser/Internal/TokenStream.php b/lib/PhpParser/Internal/TokenStream.php
index 8fba13124d..c02844ac75 100644
--- a/lib/PhpParser/Internal/TokenStream.php
+++ b/lib/PhpParser/Internal/TokenStream.php
@@ -251,7 +251,7 @@ public function getTokenCode(int $from, int $to, int $indent): string {
     private function calcIndentMap(): array {
         $indentMap = [];
         $indent = 0;
-        foreach ($this->tokens as $token) {
+        foreach ($this->tokens as $i => $token) {
             $indentMap[] = $indent;
 
             if ($token->id === \T_WHITESPACE) {
@@ -259,6 +259,10 @@ private function calcIndentMap(): array {
                 $newlinePos = \strrpos($content, "\n");
                 if (false !== $newlinePos) {
                     $indent = \strlen($content) - $newlinePos - 1;
+                } elseif ($i === 1 && $this->tokens[0]->id === \T_OPEN_TAG &&
+                          $this->tokens[0]->text[\strlen($this->tokens[0]->text) - 1] === "\n") {
+                    // Special case: Newline at the end of opening tag followed by whitespace.
+                    $indent = \strlen($content);
                 }
             }
         }
diff --git a/test/code/formatPreservation/comments.test b/test/code/formatPreservation/comments.test
index 1b62ab391a..e57477cac9 100644
--- a/test/code/formatPreservation/comments.test
+++ b/test/code/formatPreservation/comments.test
@@ -50,3 +50,14 @@ class Test {
         // some code
     }
 }
+-----
+<?php
+    class Example {
+    }
+-----
+$stmts[0]->setDocComment(new Comment\Doc("/** foo */"));
+-----
+<?php
+    /** foo */
+    class Example {
+    }