From cb8c748d49fe4e994dbb5878965783f891ead510 Mon Sep 17 00:00:00 2001
From: David Grudl <david@grudl.com>
Date: Fri, 11 Aug 2023 02:20:20 +0200
Subject: [PATCH] TemplateParserHtml: HTML attribute name can be PrintNode or
 string (BC break)

---
 src/Latte/Compiler/TemplateParserHtml.php | 30 +++++----------------
 tests/common/Compiler.errors.phpt         | 12 +++++++++
 tests/common/TemplateParser.nodes.phpt    | 33 +++++++++--------------
 3 files changed, 31 insertions(+), 44 deletions(-)

diff --git a/src/Latte/Compiler/TemplateParserHtml.php b/src/Latte/Compiler/TemplateParserHtml.php
index 57b4568bd..d4760040d 100644
--- a/src/Latte/Compiler/TemplateParserHtml.php
+++ b/src/Latte/Compiler/TemplateParserHtml.php
@@ -259,19 +259,13 @@ private function parseAttributeWhitespace(): Node
 	private function parseAttribute(): ?Node
 	{
 		$stream = $this->parser->getStream();
-		$followsLatte = $stream->is(Token::Latte_TagOpen);
-		$save = $stream->getIndex();
-		try {
-			$name = $this->parseAttributeName();
-			if (!$name) {
-				return null;
-			}
-		} catch (CompileException $e) {
-			if ($followsLatte && $stream->peek()) { // it is not lexer exception
-				$stream->seek($save);
-				return $this->parser->parseLatteStatement(); // attribute name with the value like '<span {if true}attr1=val{/if}>'
+		if ($stream->is(Token::Latte_TagOpen)) {
+			$name = $this->parser->parseLatteStatement();
+			if (!$name instanceof Latte\Essential\Nodes\PrintNode) {
+				return $name; // value like '<span {if true}attr1=val{/if}>'
 			}
-			throw $e;
+		} else {
+			$name = $this->parser->parseText();
 		}
 
 		[$value, $quote] = $this->parseAttributeValue();
@@ -284,18 +278,6 @@ private function parseAttribute(): ?Node
 	}
 
 
-	private function parseAttributeName(): ?AreaNode
-	{
-		$stream = $this->parser->getStream();
-		return $this->parser->parseFragment(fn() => match ($stream->peek()->type) {
-			Token::Html_Name => $this->parser->parseText(),
-			Token::Latte_TagOpen => $this->parser->parseLatteStatement(),
-			Token::Latte_CommentOpen => $this->parser->parseLatteComment(),
-			default => null,
-		})->simplify();
-	}
-
-
 	private function parseAttributeValue(): ?array
 	{
 		$stream = $this->parser->getStream();
diff --git a/tests/common/Compiler.errors.phpt b/tests/common/Compiler.errors.phpt
index ce922d866..4a03de44c 100644
--- a/tests/common/Compiler.errors.phpt
+++ b/tests/common/Compiler.errors.phpt
@@ -56,6 +56,18 @@ Assert::exception(
 	'Unexpected \'"a"{/if\', expecting {/if} (on line 1 at column 22)',
 );
 
+Assert::exception(
+	fn() => $latte->compile('<span {if true}title{/if}=a></span>'),
+	Latte\CompileException::class,
+	"Unexpected '=a></span', expecting end of HTML tag (on line 1 at column 26)",
+);
+
+Assert::exception(
+	fn() => $latte->compile('<span title{if true}{/if}=a></span>'),
+	Latte\CompileException::class,
+	"Unexpected '=a></span', expecting end of HTML tag (on line 1 at column 26)",
+);
+
 Assert::exception(
 	fn() => $latte->compile('<a n:href n:href>'),
 	Latte\CompileException::class,
diff --git a/tests/common/TemplateParser.nodes.phpt b/tests/common/TemplateParser.nodes.phpt
index e0a75135a..63d0d5e68 100644
--- a/tests/common/TemplateParser.nodes.phpt
+++ b/tests/common/TemplateParser.nodes.phpt
@@ -198,40 +198,33 @@ Assert::match(<<<'XX'
 	   |  |  |  |  |  |  content: ' '
 	   |  |  |  |  |  |  position: 1:27 (offset 26)
 	   |  |  |  |  |  3 => Latte\Compiler\Nodes\Html\AttributeNode
-	   |  |  |  |  |  |  name: FooNode
+	   |  |  |  |  |  |  name: Latte\Compiler\Nodes\TextNode
+	   |  |  |  |  |  |  |  content: 'attr5'
 	   |  |  |  |  |  |  |  position: 1:28 (offset 27)
 	   |  |  |  |  |  |  value: FooNode
-	   |  |  |  |  |  |  |  position: 1:45 (offset 44)
+	   |  |  |  |  |  |  |  position: 1:34 (offset 33)
 	   |  |  |  |  |  |  quote: null
 	   |  |  |  |  |  |  position: 1:28 (offset 27)
 	   |  |  |  |  |  4 => Latte\Compiler\Nodes\TextNode
 	   |  |  |  |  |  |  content: ' '
-	   |  |  |  |  |  |  position: 1:57 (offset 56)
+	   |  |  |  |  |  |  position: 1:46 (offset 45)
 	   |  |  |  |  |  5 => Latte\Compiler\Nodes\Html\AttributeNode
-	   |  |  |  |  |  |  name: Latte\Compiler\Nodes\FragmentNode
-	   |  |  |  |  |  |  |  children: array (3)
-	   |  |  |  |  |  |  |  |  0 => Latte\Compiler\Nodes\TextNode
-	   |  |  |  |  |  |  |  |  |  content: 'attr6'
-	   |  |  |  |  |  |  |  |  |  position: 1:58 (offset 57)
-	   |  |  |  |  |  |  |  |  1 => FooNode
-	   |  |  |  |  |  |  |  |  |  position: 1:63 (offset 62)
-	   |  |  |  |  |  |  |  |  2 => Latte\Compiler\Nodes\TextNode
-	   |  |  |  |  |  |  |  |  |  content: 'b'
-	   |  |  |  |  |  |  |  |  |  position: 1:69 (offset 68)
-	   |  |  |  |  |  |  |  position: 1:58 (offset 57)
+	   |  |  |  |  |  |  name: Latte\Compiler\Nodes\TextNode
+	   |  |  |  |  |  |  |  content: 'attr6'
+	   |  |  |  |  |  |  |  position: 1:47 (offset 46)
 	   |  |  |  |  |  |  value: Latte\Compiler\Nodes\FragmentNode
 	   |  |  |  |  |  |  |  children: array (3)
 	   |  |  |  |  |  |  |  |  0 => Latte\Compiler\Nodes\TextNode
 	   |  |  |  |  |  |  |  |  |  content: 'c'
-	   |  |  |  |  |  |  |  |  |  position: 1:71 (offset 70)
+	   |  |  |  |  |  |  |  |  |  position: 1:53 (offset 52)
 	   |  |  |  |  |  |  |  |  1 => FooNode
-	   |  |  |  |  |  |  |  |  |  position: 1:72 (offset 71)
+	   |  |  |  |  |  |  |  |  |  position: 1:54 (offset 53)
 	   |  |  |  |  |  |  |  |  2 => Latte\Compiler\Nodes\TextNode
 	   |  |  |  |  |  |  |  |  |  content: 'd'
-	   |  |  |  |  |  |  |  |  |  position: 1:78 (offset 77)
-	   |  |  |  |  |  |  |  position: 1:71 (offset 70)
+	   |  |  |  |  |  |  |  |  |  position: 1:60 (offset 59)
+	   |  |  |  |  |  |  |  position: 1:53 (offset 52)
 	   |  |  |  |  |  |  quote: null
-	   |  |  |  |  |  |  position: 1:58 (offset 57)
+	   |  |  |  |  |  |  position: 1:47 (offset 46)
 	   |  |  |  |  position: 1:4 (offset 3)
 	   |  |  |  selfClosing: false
 	   |  |  |  content: null
@@ -249,7 +242,7 @@ Assert::match(<<<'XX'
 	   |  position: 1:1 (offset 0)
 	   contentType: 'html'
 	   position: null
-	XX, parse("<br {foo}attr4='val'{/foo} {foo}attr5{/foo}={foo}b{/foo} attr6{foo/}b=c{foo/}d>"));
+	XX, parse("<br {foo}attr4='val'{/foo} attr5={foo}b{/foo} attr6=c{foo/}d>"));
 
 
 Assert::match(<<<'XX'