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BlueScreen: fixed PHP 8.4 exception in generator #596

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Merged
dg merged 1 commit into from
Jun 19, 2025
Merged

BlueScreen: fixed PHP 8.4 exception in generator #596

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7 changes: 6 additions & 1 deletion src/Tracy/BlueScreen/BlueScreen.php
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Original file line number Diff line number Diff line change
Expand Up @@ -483,7 +483,12 @@ private function findGeneratorsAndFibers(object $object): array
$add = function ($obj) use (&$generators, &$fibers) {
if ($obj instanceof \Generator) {
try {
new \ReflectionGenerator($obj);
$ref = new \ReflectionGenerator($obj);
// Before PHP 8.4 the ReflectionGenerator cannot be constructed from closed generator.
// Since PHP 8.4 it can, but getTrace throws ReflectionException.
if (PHP_VERSION_ID >= 80400 && $ref->isClosed()) {
return;
}
$generators[spl_object_id($obj)] = $obj;
} catch (\ReflectionException) {
}
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37 changes: 37 additions & 0 deletions tests/Tracy/Debugger.exception.in-generator.html.phpt
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@@ -0,0 +1,37 @@
<?php

/**
* Test: Tracy\Debugger exception in generator in HTML.
* @phpVersion 8.1 ReflectionGenerator::getTrace() is empty in PHP < 8.1
* @httpCode 500
* @exitCode 255
* @outputMatchFile expected/Debugger.exception.in-generator.html.expect
*/

declare(strict_types=1);

use Tracy\Debugger;

require __DIR__ . '/../bootstrap.php';

if (PHP_SAPI === 'cli') {
Tester\Environment::skip('Debugger Bluescreen is not rendered in CLI mode');
}


Debugger::$productionMode = false;
setHtmlMode();

Debugger::enable();


$generator = (function (): iterable {
yield 5;
throw new Exception('The my exception', 123);
})();
$fn = function ($generator) {
foreach ($generator as $value) {
}
};

$fn($generator);
119 changes: 119 additions & 0 deletions tests/Tracy/expected/Debugger.exception.in-generator.html.expect
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@@ -0,0 +1,119 @@
<!DOCTYPE html><!-- "' --></textarea></script></style></pre></xmp></a></iframe></noembed></noframes></noscript></option></select></template></title></table></p></code>
<html>
<head>
<meta charset="utf-8">
<meta name="robots" content="noindex">
<meta name="generator" content="Tracy by Nette Framework">

<title>Exception: The my exception #123</title>
<!-- in %a%:%d% -->
<!-- %a% -->

%A%
</head>


<body>
<tracy-div id="tracy-bs" itemscope>
<a id="tracy-bs-toggle" href="#" class="tracy-toggle">&#xfeff;</a>
<div class="tracy-bs-main">
<section class="tracy-section tracy-section--error">
<p>Exception #123</p>

<h1><span>The my exception</span>
<a href="%a%" class="tracy-action" target="_blank" rel="noreferrer noopener">search&#x25ba;</a>
</h1>

</section>



<section class="tracy-section">
<h2 class="tracy-section-label"><a href="#" data-tracy-ref="^+" class="tracy-toggle">Source file</a></h2>

<div class="tracy-section-panel">
<p><b>File:</b> <a href="%a%" title="%a%" class="tracy-editor">%a%<b>Debugger.exception.in-generator.html.phpt</b>:%d%</a></p>
<pre title="Ctrl-Click to open in editor" data-tracy-href="%a%" class='tracy-code'><div><code><span class='tracy-code-keyword'><span class='tracy-line'>%d%:</span>
<span class='tracy-line'>%d%:</span>
<span class='tracy-line'>%d%:</span> </span>Debugger<span class='tracy-code-keyword'>::</span><span class='tracy-code-var'>$productionMode </span><span class='tracy-code-keyword'>= </span>false<span class='tracy-code-keyword'>;
<span class='tracy-line'>%d%:</span> </span>setHtmlMode<span class='tracy-code-keyword'>();
<span class='tracy-line'>%d%:</span>
<span class='tracy-line'>%d%:</span> </span>Debugger<span class='tracy-code-keyword'>::</span>enable<span class='tracy-code-keyword'>();
<span class='tracy-line'>%d%:</span>
<span class='tracy-line'>%d%:</span>
<span class='tracy-line'>%d%:</span> </span><span class='tracy-code-var'>$generator </span><span class='tracy-code-keyword'>= (function (): </span>iterable <span class='tracy-code-keyword'>{
<span class='tracy-line'>%d%:</span> yield </span><span class='tracy-dump-number'>5</span><span class='tracy-code-keyword'>;
</span><span class='tracy-line-highlight'>%d%: throw new Exception('The my exception', 123);</span>
<span class='tracy-code-keyword'><span class='tracy-line'>%d%:</span> })();
<span class='tracy-line'>%d%:</span> </span><span class='tracy-code-var'>$fn </span><span class='tracy-code-keyword'>= function (</span><span class='tracy-code-var'>$generator</span><span class='tracy-code-keyword'>) {
<span class='tracy-line'>%d%:</span> foreach (</span><span class='tracy-code-var'>$generator </span><span class='tracy-code-keyword'>as </span><span class='tracy-code-var'>$value</span><span class='tracy-code-keyword'>) {
<span class='tracy-line'>%d%:</span> }
</span></code></div></pre>
</div>
</section>

<section class="tracy-section">
<h2 class="tracy-section-label"><a href="#" data-tracy-ref="^+" class="tracy-toggle">Call stack</a></h2>

<div class="tracy-section-panel">
<div class="tracy-callstack">

<div class="tracy-callstack-file">
<a href="%a%" title="%a%" class="tracy-editor">%a%<b>Debugger.exception.in-generator.html.phpt</b>:%d%</a>
</div>

<div class="tracy-callstack-callee">
<a href="#" data-tracy-ref="^div + div" class="tracy-toggle tracy-collapsed"><b>{closure%a?%}</b> ()</a>
</div>

<div class="tracy-callstack-additional tracy-collapsed">
<pre title="Ctrl-Click to open in editor" data-tracy-href="%a%" class='tracy-code'><div><code><span class='tracy-code-keyword'><span class='tracy-line'>%d%:</span> </span>setHtmlMode<span class='tracy-code-keyword'>();
<span class='tracy-line'>%d%:</span>
<span class='tracy-line'>%d%:</span> </span>Debugger<span class='tracy-code-keyword'>::</span>enable<span class='tracy-code-keyword'>();
<span class='tracy-line'>%d%:</span>
<span class='tracy-line'>%d%:</span>
<span class='tracy-line'>%d%:</span> </span><span class='tracy-code-var'>$generator </span><span class='tracy-code-keyword'>= (function (): </span>iterable <span class='tracy-code-keyword'>{
<span class='tracy-line'>%d%:</span> yield </span><span class='tracy-dump-number'>5</span><span class='tracy-code-keyword'>;
<span class='tracy-line'>%d%:</span> throw new </span>Exception<span class='tracy-code-keyword'>(</span><span class='tracy-dump-string'>'The my exception'</span><span class='tracy-code-keyword'>, </span><span class='tracy-dump-number'>123</span><span class='tracy-code-keyword'>);
<span class='tracy-line'>%d%:</span> })();
<span class='tracy-line'>%d%:</span> </span><span class='tracy-code-var'>$fn </span><span class='tracy-code-keyword'>= function (</span><span class='tracy-code-var'>$generator</span><span class='tracy-code-keyword'>) {
</span><span class='tracy-line-highlight'>%d%: foreach ($generator as $value) {</span>
<span class='tracy-code-keyword'><span class='tracy-line'>%d%:</span> }
<span class='tracy-line'>%d%:</span> };
<span class='tracy-line'>%d%:</span>
<span class='tracy-line'>%d%:</span> </span><span class='tracy-code-var'>$fn</span><span class='tracy-code-keyword'>(</span><span class='tracy-code-var'>$generator</span><span class='tracy-code-keyword'>);</span>
</code></div></pre>

</div>

<div class="tracy-callstack-file">
<a href="%a%" title="%a%" class="tracy-editor">%a%<b>Debugger.exception.in-generator.html.phpt</b>:%d%</a>
</div>

<div class="tracy-callstack-callee">
<a href="#" data-tracy-ref="^div + div" class="tracy-toggle tracy-collapsed"><b>{closure%a?%}</b> (...)</a>
</div>

<div class="tracy-callstack-additional tracy-collapsed">
<pre title="Ctrl-Click to open in editor" data-tracy-href="%a%" class='tracy-code'><div><code><span class='tracy-code-keyword'><span class='tracy-line'>%d%:</span>
<span class='tracy-line'>%d%:</span> </span><span class='tracy-code-var'>$generator </span><span class='tracy-code-keyword'>= (function (): </span>iterable <span class='tracy-code-keyword'>{
<span class='tracy-line'>%d%:</span> yield </span><span class='tracy-dump-number'>5</span><span class='tracy-code-keyword'>;
<span class='tracy-line'>%d%:</span> throw new </span>Exception<span class='tracy-code-keyword'>(</span><span class='tracy-dump-string'>'The my exception'</span><span class='tracy-code-keyword'>, </span><span class='tracy-dump-number'>123</span><span class='tracy-code-keyword'>);
<span class='tracy-line'>%d%:</span> })();
<span class='tracy-line'>%d%:</span> </span><span class='tracy-code-var'>$fn </span><span class='tracy-code-keyword'>= function (</span><span class='tracy-code-var'>$generator</span><span class='tracy-code-keyword'>) {
<span class='tracy-line'>%d%:</span> foreach (</span><span class='tracy-code-var'>$generator </span><span class='tracy-code-keyword'>as </span><span class='tracy-code-var'>$value</span><span class='tracy-code-keyword'>) {
<span class='tracy-line'>%d%:</span> }
<span class='tracy-line'>%d%:</span> };
<span class='tracy-line'>%d%:</span>
</span><span class='tracy-line-highlight'>%d%: $fn($generator);</span>
</code></div></pre>

<table class="tracy-callstack-args">
<tr><th>#0</th><td><pre class="tracy-dump tracy-light" data-tracy-dump='%a%'></pre>
</td></tr>
</table>
</div>
</div>
</div>
</section>
%A%