--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/class-wp-term.php	Mon Oct 14 17:39:30 2019 +0200
@@ -0,0 +1,245 @@
+<?php
+/**
+ * Taxonomy API: WP_Term class
+ *
+ * @package WordPress
+ * @subpackage Taxonomy
+ * @since 4.4.0
+ */
+
+/**
+ * Core class used to implement the WP_Term object.
+ *
+ * @since 4.4.0
+ *
+ * @property-read object $data Sanitized term data.
+ */
+final class WP_Term {
+
+	/**
+	 * Term ID.
+	 *
+	 * @since 4.4.0
+	 * @var int
+	 */
+	public $term_id;
+
+	/**
+	 * The term's name.
+	 *
+	 * @since 4.4.0
+	 * @var string
+	 */
+	public $name = '';
+
+	/**
+	 * The term's slug.
+	 *
+	 * @since 4.4.0
+	 * @var string
+	 */
+	public $slug = '';
+
+	/**
+	 * The term's term_group.
+	 *
+	 * @since 4.4.0
+	 * @var string
+	 */
+	public $term_group = '';
+
+	/**
+	 * Term Taxonomy ID.
+	 *
+	 * @since 4.4.0
+	 * @var int
+	 */
+	public $term_taxonomy_id = 0;
+
+	/**
+	 * The term's taxonomy name.
+	 *
+	 * @since 4.4.0
+	 * @var string
+	 */
+	public $taxonomy = '';
+
+	/**
+	 * The term's description.
+	 *
+	 * @since 4.4.0
+	 * @var string
+	 */
+	public $description = '';
+
+	/**
+	 * ID of a term's parent term.
+	 *
+	 * @since 4.4.0
+	 * @var int
+	 */
+	public $parent = 0;
+
+	/**
+	 * Cached object count for this term.
+	 *
+	 * @since 4.4.0
+	 * @var int
+	 */
+	public $count = 0;
+
+	/**
+	 * Stores the term object's sanitization level.
+	 *
+	 * Does not correspond to a database field.
+	 *
+	 * @since 4.4.0
+	 * @var string
+	 */
+	public $filter = 'raw';
+
+	/**
+	 * Retrieve WP_Term instance.
+	 *
+	 * @since 4.4.0
+	 * @static
+	 *
+	 * @global wpdb $wpdb WordPress database abstraction object.
+	 *
+	 * @param int    $term_id  Term ID.
+	 * @param string $taxonomy Optional. Limit matched terms to those matching `$taxonomy`. Only used for
+	 *                         disambiguating potentially shared terms.
+	 * @return WP_Term|WP_Error|false Term object, if found. WP_Error if `$term_id` is shared between taxonomies and
+	 *                                there's insufficient data to distinguish which term is intended.
+	 *                                False for other failures.
+	 */
+	public static function get_instance( $term_id, $taxonomy = null ) {
+		global $wpdb;
+
+		$term_id = (int) $term_id;
+		if ( ! $term_id ) {
+			return false;
+		}
+
+		$_term = wp_cache_get( $term_id, 'terms' );
+
+		// If there isn't a cached version, hit the database.
+		if ( ! $_term || ( $taxonomy && $taxonomy !== $_term->taxonomy ) ) {
+			// Any term found in the cache is not a match, so don't use it.
+			$_term = false;
+
+			// Grab all matching terms, in case any are shared between taxonomies.
+			$terms = $wpdb->get_results( $wpdb->prepare( "SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE t.term_id = %d", $term_id ) );
+			if ( ! $terms ) {
+				return false;
+			}
+
+			// If a taxonomy was specified, find a match.
+			if ( $taxonomy ) {
+				foreach ( $terms as $match ) {
+					if ( $taxonomy === $match->taxonomy ) {
+						$_term = $match;
+						break;
+					}
+				}
+
+			// If only one match was found, it's the one we want.
+			} elseif ( 1 === count( $terms ) ) {
+				$_term = reset( $terms );
+
+			// Otherwise, the term must be shared between taxonomies.
+			} else {
+				// If the term is shared only with invalid taxonomies, return the one valid term.
+				foreach ( $terms as $t ) {
+					if ( ! taxonomy_exists( $t->taxonomy ) ) {
+						continue;
+					}
+
+					// Only hit if we've already identified a term in a valid taxonomy.
+					if ( $_term ) {
+						return new WP_Error( 'ambiguous_term_id', __( 'Term ID is shared between multiple taxonomies' ), $term_id );
+					}
+
+					$_term = $t;
+				}
+			}
+
+			if ( ! $_term ) {
+				return false;
+			}
+
+			// Don't return terms from invalid taxonomies.
+			if ( ! taxonomy_exists( $_term->taxonomy ) ) {
+				return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) );
+			}
+
+			$_term = sanitize_term( $_term, $_term->taxonomy, 'raw' );
+
+			// Don't cache terms that are shared between taxonomies.
+			if ( 1 === count( $terms ) ) {
+				wp_cache_add( $term_id, $_term, 'terms' );
+			}
+		}
+
+		$term_obj = new WP_Term( $_term );
+		$term_obj->filter( $term_obj->filter );
+
+		return $term_obj;
+	}
+
+	/**
+	 * Constructor.
+	 *
+	 * @since 4.4.0
+	 *
+	 * @param WP_Term|object $term Term object.
+	 */
+	public function __construct( $term ) {
+		foreach ( get_object_vars( $term ) as $key => $value ) {
+			$this->$key = $value;
+		}
+	}
+
+	/**
+	 * Sanitizes term fields, according to the filter type provided.
+	 *
+	 * @since 4.4.0
+	 *
+	 * @param string $filter Filter context. Accepts 'edit', 'db', 'display', 'attribute', 'js', 'raw'.
+	 */
+	public function filter( $filter ) {
+		sanitize_term( $this, $this->taxonomy, $filter );
+	}
+
+	/**
+	 * Converts an object to array.
+	 *
+	 * @since 4.4.0
+	 *
+	 * @return array Object as array.
+	 */
+	public function to_array() {
+		return get_object_vars( $this );
+	}
+
+	/**
+	 * Getter.
+	 *
+	 * @since 4.4.0
+	 *
+	 * @param string $key Property to get.
+	 * @return mixed Property value.
+	 */
+	public function __get( $key ) {
+		switch ( $key ) {
+			case 'data' :
+				$data = new stdClass();
+				$columns = array( 'term_id', 'name', 'slug', 'term_group', 'term_taxonomy_id', 'taxonomy', 'description', 'parent', 'count' );
+				foreach ( $columns as $column ) {
+					$data->{$column} = isset( $this->{$column} ) ? $this->{$column} : null;
+				}
+
+				return sanitize_term( $data, $data->taxonomy, 'raw' );
+		}
+	}
+}