/**
* Scan function entry
*
* @param mixed $name The name of the function to reflect or a closure.
*
* @return self
* @throws CallableNotFoundException
*/
public static function scan($name)
{
try {
$fe = new \ReflectionFunction($name);
} catch (\Exception $e) {
throw Error::functionNotFound($name);
}
$info = new static();
$info->import($fe);
return $info;
}
/**
* Scan method
*
* @param mixed $class class name or object
* @param string $method
*
* @return MethodInfo
* @throws CallableNotFoundException
*/
public static function scan($class, $method)
{
try {
$me = new \ReflectionMethod($class, $method);
} catch (\Exception $e) {
throw Error::methodNotFound($class . "::" . $method);
}
$info = new static();
$info->import($me);
return $info;
}
/**
* @param array $params
* @param Filter $filter
*
* @return array
* @throws \Koda\Error\TypeCastingException
* @throws InvalidArgumentException
*/
public function filterArgs(array $params, Filter $filter)
{
$args = [];
foreach ($this->args as $name => $arg) {
if ($arg->inject) {
$params[$name] = $filter->injection($arg, isset($params[$name]) ? $params[$name] : null);
}
if (isset($params[$name])) {
$param = $params[$name];
$args[] = $arg->filter($param, $filter);
unset($params[$name]);
} elseif (isset($params[$arg->position])) {
$param = $params[$arg->position];
$args[] = $arg->filter($param, $filter);
unset($params[$arg->position]);
} elseif ($arg->optional) {
$args[] = $arg->default;
continue;
} else {
throw Error::argumentRequired($arg);
}
}
return $args;
}
/**
* Type casting
*
* @param mixed $value
* @param Filter $filter
*
* @throws TypeCastingException
*/
public function toType(&$value, Filter $filter = null)
{
$type = gettype($value);
switch ($this->type) {
case "callable":
if (!is_callable($value)) {
throw Error::invalidType($this, $type);
}
return;
case "object":
if (is_a($value, $this->class)) {
return;
} elseif ($filter && $filter->factory) {
$value = $filter->factory($this, $value);
if (!is_a($value, $this->class)) {
throw Error::invalidType($this, $type);
}
return;
} else {
throw Error::invalidType($this, $type);
}
case "array":
if (!is_array($value)) {
throw Error::invalidType($this, $type);
}
return;
}
if ($type == "object" || $type == "array") {
throw Error::invalidType($this, $type);
}
switch ($this->type) {
case "int":
case "float":
if (!is_numeric($value)) {
throw Error::invalidType($this, $type);
} else {
settype($value, $this->type);
}
break;
default:
settype($value, $this->type);
}
}
public function factory(ArgumentInfo $info, $value = null)
{
try {
return call_user_func($this->factory, $info, $value);
} catch (\Exception $e) {
throw Error::factoryFailed($info, $e);
}
}
