From dd83f03932c635fd9edde3c06560a1265feedddf Mon Sep 17 00:00:00 2001
From: Tomas Votruba <tomas.vot@gmail.com>
Date: Fri, 30 Oct 2026 17:51:13 +0100
Subject: [PATCH] Skip heredoc/nowdoc bodies when spacing attribute concat

---
 blink/internal/fixer/rules/concat_space.go             | 7 +++++++
 blink/internal/fixer/rules/concat_space_config_test.go | 1 +
 2 files changed, 8 insertions(+)

diff --git a/blink/internal/fixer/rules/concat_space.go b/blink/internal/fixer/rules/concat_space.go
index be528bef42..5135f6d92b 100644
--- a/blink/internal/fixer/rules/concat_space.go
+++ b/blink/internal/fixer/rules/concat_space.go
@@ -93,6 +93,13 @@ func spaceAttributeConcat(value string, none bool) (string, bool) {
 			}
 			continue
 		}
+		if c == '<' && strings.HasPrefix(value[i:], "<<<") {
+			if end := heredocEnd(value, i); end > i {
+				b = append(b, value[i:end]...)
+				i = end - 1
+				continue
+			}
+		}
 		if c == '\'' || c == '"' {
 			quote = c
 			b = append(b, c)
diff --git a/blink/internal/fixer/rules/concat_space_config_test.go b/blink/internal/fixer/rules/concat_space_config_test.go
index 3a5b7ada28..f81fb0f36c 100644
--- a/blink/internal/fixer/rules/concat_space_config_test.go
+++ b/blink/internal/fixer/rules/concat_space_config_test.go
@@ -19,6 +19,7 @@ func TestConcatSpaceConfigCases(t *testing.T) {
 		{"float literal in attribute left alone", ConcatSpace{}, "<?php #[X(1.5)]\nclass C {}", "<?php #[X(1.5)]\nclass C {}"},
 		{"spread in attribute left alone", ConcatSpace{}, "<?php #[X(...$a)]\nclass C {}", "<?php #[X(...$a)]\nclass C {}"},
 		{"scope resolution in attribute left alone", ConcatSpace{}, "<?php #[X(self::A.'b')]\nclass C {}", "<?php #[X(self::A . 'b')]\nclass C {}"},
+		{"dot inside attribute heredoc left alone", ConcatSpace{}, "<?php #[X(help: <<<'TXT'\n%command.name% runs.\nTXT, __DIR__.'/x')]\nclass C {}", "<?php #[X(help: <<<'TXT'\n%command.name% runs.\nTXT, __DIR__ . '/x')]\nclass C {}"},
 	}
 	for _, c := range cases {
 		got, _ := apply(t, c.rule, c.src)