--- /dev/null
+<?php
+
+namespace PhpParser\Builder;
+
+use PhpParser;
+use PhpParser\Node;
+
+class Param extends PhpParser\BuilderAbstract
+{
+ protected $name;
+
+ protected $default = null;
+
+ /** @var string|Node\Name|Node\NullableType|null */
+ protected $type = null;
+
+ protected $byRef = false;
+
+ /**
+ * Creates a parameter builder.
+ *
+ * @param string $name Name of the parameter
+ */
+ public function __construct($name) {
+ $this->name = $name;
+ }
+
+ /**
+ * Sets default value for the parameter.
+ *
+ * @param mixed $value Default value to use
+ *
+ * @return $this The builder instance (for fluid interface)
+ */
+ public function setDefault($value) {
+ $this->default = $this->normalizeValue($value);
+
+ return $this;
+ }
+
+ /**
+ * Sets type hint for the parameter.
+ *
+ * @param string|Node\Name|Node\NullableType $type Type hint to use
+ *
+ * @return $this The builder instance (for fluid interface)
+ */
+ public function setTypeHint($type) {
+ $this->type = $this->normalizeType($type);
+ if ($this->type === 'void') {
+ throw new \LogicException('Parameter type cannot be void');
+ }
+
+ return $this;
+ }
+
+ /**
+ * Make the parameter accept the value by reference.
+ *
+ * @return $this The builder instance (for fluid interface)
+ */
+ public function makeByRef() {
+ $this->byRef = true;
+
+ return $this;
+ }
+
+ /**
+ * Returns the built parameter node.
+ *
+ * @return Node\Param The built parameter node
+ */
+ public function getNode() {
+ return new Node\Param(
+ $this->name, $this->default, $this->type, $this->byRef
+ );
+ }
+}