private function PhpMatcherDumper::compileRoute

Compiles a single Route to PHP code used to match it against the path info.

Parameters

Route $route A Route instance:

string $name The name of the Route:

Boolean $supportsRedirections Whether redirections are supported by the base class:

string|null $parentPrefix The prefix of the parent collection used to optimize the code:

Return value

string PHP code

File

drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php, line 175

Class

PhpMatcherDumper

PhpMatcherDumper creates a PHP class able to match URLs for a given set of routes.

Namespace

Code

private function compileRoute(Route $route, $name, $supportsRedirections, $parentPrefix = null) {
  $code = '';
  $compiledRoute = $route
    ->compile();
  $conditions = array();
  $hasTrailingSlash = false;
  $matches = false;
  $methods = array();
  if ($req = $route
    ->getRequirement('_method')) {
    $methods = explode('|', strtoupper($req));

    // GET and HEAD are equivalent
    if (in_array('GET', $methods) && !in_array('HEAD', $methods)) {
      $methods[] = 'HEAD';
    }
  }
  $supportsTrailingSlash = $supportsRedirections && (!$methods || in_array('HEAD', $methods));
  if (!count($compiledRoute
    ->getVariables()) && false !== preg_match('#^(.)\\^(?<url>.*?)\\$\\1#', $compiledRoute
    ->getRegex(), $m)) {
    if ($supportsTrailingSlash && substr($m['url'], -1) === '/') {
      $conditions[] = sprintf("rtrim(\$pathinfo, '/') === %s", var_export(rtrim(str_replace('\\', '', $m['url']), '/'), true));
      $hasTrailingSlash = true;
    }
    else {
      $conditions[] = sprintf("\$pathinfo === %s", var_export(str_replace('\\', '', $m['url']), true));
    }
  }
  else {
    if ($compiledRoute
      ->getStaticPrefix() && $compiledRoute
      ->getStaticPrefix() !== $parentPrefix) {
      $conditions[] = sprintf("0 === strpos(\$pathinfo, %s)", var_export($compiledRoute
        ->getStaticPrefix(), true));
    }
    $regex = $compiledRoute
      ->getRegex();
    if ($supportsTrailingSlash && ($pos = strpos($regex, '/$'))) {
      $regex = substr($regex, 0, $pos) . '/?$' . substr($regex, $pos + 2);
      $hasTrailingSlash = true;
    }
    $conditions[] = sprintf("preg_match(%s, \$pathinfo, \$matches)", var_export($regex, true));
    $matches = true;
  }
  $conditions = implode(' && ', $conditions);
  $code .= <<<EOF
        // {<span class="php-variable">$name</span>}
        if ({<span class="php-variable">$conditions</span>}) {

EOF;
  if ($methods) {
    $gotoname = 'not_' . preg_replace('/[^A-Za-z0-9_]/', '', $name);
    if (1 === count($methods)) {
      $code .= <<<EOF
            if (\$this->context->getMethod() != '{<span class="php-variable">$methods</span>[<span class="php-constant">0</span>]}') {
                \$allow[] = '{<span class="php-variable">$methods</span>[<span class="php-constant">0</span>]}';
                goto {<span class="php-variable">$gotoname</span>};
            }


EOF;
    }
    else {
      $methods = implode("', '", $methods);
      $code .= <<<EOF
            if (!in_array(\$this->context->getMethod(), array('{<span class="php-variable">$methods</span>}'))) {
                \$allow = array_merge(\$allow, array('{<span class="php-variable">$methods</span>}'));
                goto {<span class="php-variable">$gotoname</span>};
            }


EOF;
    }
  }
  if ($hasTrailingSlash) {
    $code .= <<<EOF
            if (substr(\$pathinfo, -1) !== '/') {
                return \$this->redirect(\$pathinfo.'/', '{<span class="php-variable">$name</span>}');
            }


EOF;
  }
  if ($scheme = $route
    ->getRequirement('_scheme')) {
    if (!$supportsRedirections) {
      throw new \LogicException('The "_scheme" requirement is only supported for URL matchers that implement RedirectableUrlMatcherInterface.');
    }
    $code .= <<<EOF
            if (\$this->context->getScheme() !== '{<span class="php-variable">$scheme</span>}') {
                return \$this->redirect(\$pathinfo, '{<span class="php-variable">$name</span>}', '{<span class="php-variable">$scheme</span>}');
            }


EOF;
  }

  // optimize parameters array
  if (true === $matches && $route
    ->getDefaults()) {
    $code .= sprintf("            return array_merge(\$this->mergeDefaults(\$matches, %s), array('_route' => '%s'));\n", str_replace("\n", '', var_export($route
      ->getDefaults(), true)), $name);
  }
  elseif (true === $matches) {
    $code .= sprintf("            \$matches['_route'] = '%s';\n\n", $name);
    $code .= "            return \$matches;\n";
  }
  elseif ($route
    ->getDefaults()) {
    $code .= sprintf("            return %s;\n", str_replace("\n", '', var_export(array_merge($route
      ->getDefaults(), array(
      '_route' => $name,
    )), true)));
  }
  else {
    $code .= sprintf("            return array('_route' => '%s');\n", $name);
  }
  $code .= "        }\n";
  if ($methods) {
    $code .= "        {$gotoname}:\n";
  }
  return $code;
}