--- /dev/null
+<?php
+
+namespace PhpParser\Node;
+
+use PhpParser\NodeAbstract;
+
+class Name extends NodeAbstract
+{
+ /**
+ * @var string[] Parts of the name
+ * @deprecated Avoid directly accessing $parts, use methods instead.
+ */
+ public $parts;
+
+ /**
+ * Constructs a name node.
+ *
+ * @param string|array|self $name Name as string, part array or Name instance (copy ctor)
+ * @param array $attributes Additional attributes
+ */
+ public function __construct($name, array $attributes = array()) {
+ parent::__construct($attributes);
+ $this->parts = self::prepareName($name);
+ }
+
+ public function getSubNodeNames() {
+ return array('parts');
+ }
+
+ /**
+ * Gets the first part of the name, i.e. everything before the first namespace separator.
+ *
+ * @return string First part of the name
+ */
+ public function getFirst() {
+ return $this->parts[0];
+ }
+
+ /**
+ * Gets the last part of the name, i.e. everything after the last namespace separator.
+ *
+ * @return string Last part of the name
+ */
+ public function getLast() {
+ return $this->parts[count($this->parts) - 1];
+ }
+
+ /**
+ * Checks whether the name is unqualified. (E.g. Name)
+ *
+ * @return bool Whether the name is unqualified
+ */
+ public function isUnqualified() {
+ return 1 == count($this->parts);
+ }
+
+ /**
+ * Checks whether the name is qualified. (E.g. Name\Name)
+ *
+ * @return bool Whether the name is qualified
+ */
+ public function isQualified() {
+ return 1 < count($this->parts);
+ }
+
+ /**
+ * Checks whether the name is fully qualified. (E.g. \Name)
+ *
+ * @return bool Whether the name is fully qualified
+ */
+ public function isFullyQualified() {
+ return false;
+ }
+
+ /**
+ * Checks whether the name is explicitly relative to the current namespace. (E.g. namespace\Name)
+ *
+ * @return bool Whether the name is relative
+ */
+ public function isRelative() {
+ return false;
+ }
+
+ /**
+ * Returns a string representation of the name by imploding the namespace parts with the
+ * namespace separator.
+ *
+ * @return string String representation
+ */
+ public function toString() {
+ return implode('\\', $this->parts);
+ }
+
+ /**
+ * Returns a string representation of the name by imploding the namespace parts with the
+ * namespace separator.
+ *
+ * @return string String representation
+ */
+ public function __toString() {
+ return implode('\\', $this->parts);
+ }
+
+ /**
+ * Gets a slice of a name (similar to array_slice).
+ *
+ * This method returns a new instance of the same type as the original and with the same
+ * attributes.
+ *
+ * If the slice is empty, null is returned. The null value will be correctly handled in
+ * concatenations using concat().
+ *
+ * Offset and length have the same meaning as in array_slice().
+ *
+ * @param int $offset Offset to start the slice at (may be negative)
+ * @param int|null $length Length of the slice (may be negative)
+ *
+ * @return static|null Sliced name
+ */
+ public function slice($offset, $length = null) {
+ $numParts = count($this->parts);
+
+ $realOffset = $offset < 0 ? $offset + $numParts : $offset;
+ if ($realOffset < 0 || $realOffset > $numParts) {
+ throw new \OutOfBoundsException(sprintf('Offset %d is out of bounds', $offset));
+ }
+
+ if (null === $length) {
+ $realLength = $numParts - $realOffset;
+ } else {
+ $realLength = $length < 0 ? $length + $numParts - $realOffset : $length;
+ if ($realLength < 0 || $realLength > $numParts) {
+ throw new \OutOfBoundsException(sprintf('Length %d is out of bounds', $length));
+ }
+ }
+
+ if ($realLength === 0) {
+ // Empty slice is represented as null
+ return null;
+ }
+
+ return new static(array_slice($this->parts, $realOffset, $realLength), $this->attributes);
+ }
+
+ /**
+ * Concatenate two names, yielding a new Name instance.
+ *
+ * The type of the generated instance depends on which class this method is called on, for
+ * example Name\FullyQualified::concat() will yield a Name\FullyQualified instance.
+ *
+ * If one of the arguments is null, a new instance of the other name will be returned. If both
+ * arguments are null, null will be returned. As such, writing
+ * Name::concat($namespace, $shortName)
+ * where $namespace is a Name node or null will work as expected.
+ *
+ * @param string|array|self|null $name1 The first name
+ * @param string|array|self|null $name2 The second name
+ * @param array $attributes Attributes to assign to concatenated name
+ *
+ * @return static|null Concatenated name
+ */
+ public static function concat($name1, $name2, array $attributes = []) {
+ if (null === $name1 && null === $name2) {
+ return null;
+ } elseif (null === $name1) {
+ return new static(self::prepareName($name2), $attributes);
+ } else if (null === $name2) {
+ return new static(self::prepareName($name1), $attributes);
+ } else {
+ return new static(
+ array_merge(self::prepareName($name1), self::prepareName($name2)), $attributes
+ );
+ }
+ }
+
+ /**
+ * Prepares a (string, array or Name node) name for use in name changing methods by converting
+ * it to an array.
+ *
+ * @param string|array|self $name Name to prepare
+ *
+ * @return array Prepared name
+ */
+ private static function prepareName($name) {
+ if (\is_string($name)) {
+ return explode('\\', $name);
+ } elseif (\is_array($name)) {
+ return $name;
+ } elseif ($name instanceof self) {
+ return $name->parts;
+ }
+
+ throw new \InvalidArgumentException(
+ 'Expected string, array of parts or Name instance'
+ );
+ }
+}
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