merged branch Crell/route-requirements (PR #6098)

This PR was merged into the master branch.

Commits
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b930066 Add Route::hasOption() and Route::hasRequirement() methods.

Discussion
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Add Route::hasOption() and Route::hasRequirement() methods.

It seems odd that there's a hasDefault() method but not for options and requirements.  Drupal has logic that depends on the existence of a given requirement.  So let's add that.

I think I got the coding standards right the first time for once... :-)

src/Symfony/Component/Routing/Route.php

@@ -233,6 +233,18 @@ class Route implements \Serializable
         return isset($this->options[$name]) ? $this->options[$name] : null;
     }
 
+    /**
+     * Checks if a an option has been set
+     *
+     * @param string $name An option name
+     *
+     * @return Boolean true if the option is set, false otherwise
+     */
+    public function hasOption($name)
+    {
+        return array_key_exists($name, $this->options);
+    }
+
     /**
      * Returns the defaults.
      *
@@ -377,6 +389,18 @@ class Route implements \Serializable
         return isset($this->requirements[$key]) ? $this->requirements[$key] : null;
     }
 
+    /**
+     * Checks if a requirement is set for the given key.
+     *
+     * @param string $name A variable name
+     *
+     * @return Boolean true if a requirement is specified, false otherwise
+     */
+    public function hasRequirement($key)
+    {
+        return array_key_exists($key, $this->requirements);
+    }
+
     /**
      * Sets a requirement for the given key.
      *