Allow repo config object to be used as an array

Author: balbuf

src/Repository/Config/RepositoryConfig.php

@@ -12,7 +12,7 @@
 use Composer\Repository\RepositoryInterface;
 
 
-class RepositoryConfig implements RepositoryConfigInterface {
+class RepositoryConfig implements RepositoryConfigInterface, \ArrayAccess {
 
 	const repoType = null;
 	protected $config;
@@ -135,4 +135,32 @@ function getRepo() {
 		return $this->repo;
 	}
 
+	/**
+	 * @see ArrayAccess
+	 */
+	function offsetExists( $offset ) {
+		return isset( $this->config[ $offset ] );
+	}
+
+	/**
+	 * @see ArrayAccess
+	 */
+	function offsetGet( $offset ) {
+		return $this->get( $offset );
+	}
+
+	/**
+	 * @see ArrayAccess
+	 */
+	function offsetSet( $offset, $value ) {
+		return $this->set( $offset, $value );
+	}
+
+	/**
+	 * @see ArrayAccess
+	 */
+	function offsetUnset( $offset ) {
+		unset( $this->config[ $offset ] );
+	}
+
 }