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Bug #59949 Scoping issues cause fatal error (v8::HandleScope)
Submitted: 2011-09-12 15:42 UTC Modified: 2015-03-13 14:55 UTC
Votes:3
Avg. Score:4.7 ± 0.5
Reproduced:3 of 3 (100.0%)
Same Version:2 (66.7%)
Same OS:2 (66.7%)
From: westie at typefish dot co dot uk Assigned: stesie (profile)
Status: Closed Package: v8js (PECL)
PHP Version: Irrelevant OS: Linux
Private report: No CVE-ID: None
 [2011-09-12 15:42 UTC] westie at typefish dot co dot uk
Description:
------------
Using the below code, I get the error stated even further down 
the code.

If I call the V8Function closure in TestClass::setMethod(), it 
will work perfectly.

However, when I call it in the global scope (as demonstrated) 
it will error. It will also error if I call the closure in 
TestClass::Method() as well.

Reproduce code:
---------------
class Engine
{
	private
		$v8;
	
	
	public function __construct()
	{
		$this->v8 = new v8js("php");
		
		$this->v8->method = function($c)
		{
			TestClass::setMethod($c);
		};
		
		$this->run(" php.method(function(s) { print(s + '!'); }) ");
	}
	
	
	public function run($s)
	{
		return $this->v8->executeString($s);
	}
}



class TestClass
{
	private static
		$cMethod = null;
	
	
	public static function setMethod(V8Function $cMethod)
	{
		self::$cMethod = $cMethod;
	}
	
	public static function Method()
	{
		return self::$cMethod;
	}
}


$e = new Engine();

$c = TestClass::Method();

echo $c("hello"); # Line number: 54

Expected result:
----------------
hello!

Actual result:
--------------
PHP Fatal error:  v8::HandleScope::CreateHandle() Cannot 
create a handle without a HandleScope in 
/home/Westie/Development/V8Js.php on line 54
PHP Stack trace:
PHP   1. {main}() /home/Westie/Development/V8Js.php:0

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 [2014-11-20 19:52 UTC] stesie at brokenpipe dot de
This was addressed with issues #33 and #39 over at Github issue tracker back in 2013.  See for details:

https://github.com/preillyme/v8js/issues/33
https://github.com/preillyme/v8js/pull/39

Tried out the code provided here against recent master version, works as expected (meanwhile).

cheers
  ~stesie
 [2015-03-13 14:55 UTC] stesie@php.net
-Status: Open +Status: Closed -Assigned To: +Assigned To: stesie
 [2015-03-13 14:55 UTC] stesie@php.net
no feedback, hence closing now.
 
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