--- /dev/null
+<?php
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\Node\Name;
+use PhpParser\Node\Stmt;
+
+class Interface_ extends Declaration
+{
+ protected $name;
+ protected $extends = array();
+ protected $constants = array();
+ protected $methods = array();
+
+ /**
+ * Creates an interface builder.
+ *
+ * @param string $name Name of the interface
+ */
+ public function __construct($name) {
+ $this->name = $name;
+ }
+
+ /**
+ * Extends one or more interfaces.
+ *
+ * @param Name|string ...$interfaces Names of interfaces to extend
+ *
+ * @return $this The builder instance (for fluid interface)
+ */
+ public function extend() {
+ foreach (func_get_args() as $interface) {
+ $this->extends[] = $this->normalizeName($interface);
+ }
+
+ return $this;
+ }
+
+ /**
+ * Adds a statement.
+ *
+ * @param Stmt|PhpParser\Builder $stmt The statement to add
+ *
+ * @return $this The builder instance (for fluid interface)
+ */
+ public function addStmt($stmt) {
+ $stmt = $this->normalizeNode($stmt);
+
+ $type = $stmt->getType();
+ switch ($type) {
+ case 'Stmt_ClassConst':
+ $this->constants[] = $stmt;
+ break;
+
+ case 'Stmt_ClassMethod':
+ // we erase all statements in the body of an interface method
+ $stmt->stmts = null;
+ $this->methods[] = $stmt;
+ break;
+
+ default:
+ throw new \LogicException(sprintf('Unexpected node of type "%s"', $type));
+ }
+
+ return $this;
+ }
+
+ /**
+ * Returns the built interface node.
+ *
+ * @return Stmt\Interface_ The built interface node
+ */
+ public function getNode() {
+ return new Stmt\Interface_($this->name, array(
+ 'extends' => $this->extends,
+ 'stmts' => array_merge($this->constants, $this->methods),
+ ), $this->attributes);
+ }
+}
\ No newline at end of file