Unexpected TypeError: Illegal invocation (same as #262 but how to reproduce the problem)

[chrisbckr]

class BaseClass {
	public function bla() {
	    echo "print bla";
	}
}

class Foo extends BaseClass {
    
}

class Bar extends BaseClass {
}

$v8 = new V8Js('PHP');
$v8->Foo = new Foo();
$v8->Bar = new Bar();

$code = <<<EOT

var_dump(PHP.Foo);
var_dump(PHP.Bar);

var_dump(PHP.Foo.bla());
var_dump(PHP.Bar.bla());
EOT;

$v8->executeString($code, 'test');

Result:

object(Foo)#1792350 (1) {
  ["bla"] =>
  object(Closure)#914656 {
      function () { [native code] }
  }
}
object(Bar)#1323981 (1) {
  ["bla"] =>
  object(Closure)#914656 {
      function () { [native code] }
  }
}
print blaNULL
PHP Fatal error:  Uncaught V8JsScriptException: test:6: TypeError: Illegal invocation in /root/v8js/teste.php:28
Stack trace:
#0 /root/v8js/teste.php(28): V8Js->executeString('\nvar_dump(PHP.F...', 'test')
#1 {main}
  thrown in /root/v8js/teste.php on line 28

Fatal error: Uncaught V8JsScriptException: test:6: TypeError: Illegal invocation in /root/v8js/teste.php:28
Stack trace:
#0 /root/v8js/teste.php(28): V8Js->executeString('\nvar_dump(PHP.F...', 'test')
#1 {main}
  thrown in /root/v8js/teste.php on line 28

PHP 7.0.32-2+0 20181015120515.7+jessie~1.gbpa6b8cf (cli) (built: Oct 15 2018 19:38:45) ( NTS )
libv8 7.2.99

Originally posted by @chrisbckr in #262 (comment)

[kolyan-r]

Hi, i caught the same problem when wrote my code :(
OS Ubuntu 18.04
PHP PHP 7.1.26-1+ubuntu18.04.1+deb.sury.org+1 (cli) (built: Jan 11 2019 14:13:49)
V8 7.0.276.32
phpv8 revision 85097c1d6877165582c1a58754f36b12a4b98055

[niklas-heer]

We are having the same issue.
In the meantime is there maybe a workaround?

[juan-morales]

Tested on Ubuntu 18.04

With the following configuration:

$ php --ri v8js

**v8js

V8 Javascript Engine => enabled
V8 Engine Compiled Version => 7.6.57
V8 Engine Linked Version => 7.6.57
Version => 2.1.0

Directive => Local Value => Master Value
v8js.flags => no value => no value
v8js.icudtl_dat_path => no value => no value
v8js.use_date => 0 => 0
v8js.use_array_access => 0 => 0**

And I am getting the exact same result.

Any advice?

[juan-morales]

I can Confirm this code breaks also in the coker image provided here:

https://hub.docker.com/r/stesie/v8js/

[juan-morales]

ok , workaround for this issue .... BUT NEEDS TO BE INVESTIGATED

class BaseClass {
	public function bla() {
	    echo "print bla";
	}
}

class Foo extends BaseClass {
    
}

class Bar extends BaseClass {
}

$v8 = new V8Js('PHP');
$v8->Foo = new Foo();
$v8->Bar = new Bar();

$code = <<<EOT

var_dump(PHP.Foo);
var_dump(PHP.Bar);

var_dump(PHP.Foo.__call("bla", []));
var_dump(PHP.Bar.__call("bla", []));
EOT;

$v8->executeString($code, 'test');

[stesie]

Fixed by #416, shipped with v8js 2.1.1