/**
* {@inheritDoc}
*
* @throws \LogicException If a variable is referenced more than once
* @throws \DomainException If a variable name is numeric because PHP raises an error for such
* subpatterns in PCRE and thus would break matching, e.g. "(?P<123>.+)".
*/
public function compile(Route $route)
{
$staticPrefix = null;
$hostnameVariables = array();
$pathVariables = array();
$variables = array();
$tokens = array();
$regex = null;
$hostnameRegex = null;
$hostnameTokens = array();
if ('' !== ($hostnamePattern = $route->getHostnamePattern())) {
$result = $this->compilePattern($route, $hostnamePattern, true);
$hostnameVariables = $result['variables'];
$variables = array_merge($variables, $hostnameVariables);
$hostnameTokens = $result['tokens'];
$hostnameRegex = $result['regex'];
}
$pattern = $route->getPattern();
$result = $this->compilePattern($route, $pattern, false);
$staticPrefix = $result['staticPrefix'];
$pathVariables = $result['variables'];
$variables = array_merge($variables, $pathVariables);
$tokens = $result['tokens'];
$regex = $result['regex'];
return new CompiledRoute($staticPrefix, $regex, $tokens, $pathVariables, $hostnameRegex, $hostnameTokens, $hostnameVariables, array_unique($variables));
}
