/**
* @param type $expr
* @return type
*/
protected function evaluateFuncCall($expr)
{
if (isset($expr->name->parts)) {
if (count($expr->name->parts) != 1) {
return $this->error("Unsupported FuncCall expression", $expr);
}
$functionName = $expr->name->parts[0];
$map = ['help' => [$this, 'fnHelp']];
$isFunctionAllowed = in_array($functionName, $this->allowedFunctions) || in_array($functionName, array_keys($map));
if (is_callable(array($this->callbackManager, $functionName))) {
$functionName = array($this->callbackManager, $functionName);
} else {
if (!$isFunctionAllowed && function_exists($functionName)) {
return $this->error("Unauthorized function '{$functionName}'", $expr);
} elseif (!$isFunctionAllowed) {
return $this->error("Unknown function '{$functionName}'", $expr);
}
if (isset($map[$functionName])) {
$functionName = $map[$functionName];
}
}
$args = $this->evaluateArgs($expr);
$result = call_user_func_array($functionName, $args);
return $this->debug($expr, $result);
} elseif ($expr->name instanceof \PhpParser\Node\Expr\Variable) {
$variable = $this->registry->get($expr->name->name);
if (!isset($variable)) {
return $this->error("Unsupported FuncCall expression - Unkown function", $expr);
}
if (!is_callable($variable)) {
return $this->error("Unsupported FuncCall expression - Variable is not a function", $expr);
}
$result = call_user_func_array($variable, $args = []);
return $this->debug($expr, $result);
} else {
return $this->error("Unsupported FuncCall expression", $expr);
}
}
