/**
* Creates a tokenizer representing the code that is the best candidate for representing the function. It uses
* reflection to find the file and lines of the code and then puts that code into the tokenizer.
*
* @return \FunctionParser\Tokenizer The tokenizer of the function's code.
*/
protected function fetchTokenizer()
{
// Load the file containing the code for the function
$file = new \SplFileObject($this->reflection->getFileName());
// Identify the first and last lines of the code for the function
$first_line = $this->reflection->getStartLine();
$last_line = $this->reflection->getEndLine();
// Retrieve all of the lines that contain code for the function
$code = '';
$file->seek($first_line - 1);
while ($file->key() < $last_line) {
$code .= $file->current();
$file->next();
}
// Setup the tokenizer with the code from the file
$tokenizer = new Tokenizer($code);
// Eliminate tokens that are definitely not a part of the function code
$start = $tokenizer->findToken(T_FUNCTION);
$finish = $tokenizer->findToken('}', -1);
$tokenizer = $tokenizer->getTokenRange($start, $finish + 1);
return $tokenizer;
}
