// If the post_status was specifically requested, let it pass through.
			if ( ! in_array( $status, $q_status, true ) ) {
				$post_status_obj = get_post_status_object( $status );

				if ( $post_status_obj && ! $post_status_obj->public ) {
					if ( ! is_user_logged_in() ) {
						// User must be logged in to view unpublished posts.
						$this->posts = array();
					} else {
						if ( $post_status_obj->protected ) {
							// User must have edit permissions on the draft to preview.
							if ( ! current_user_can( $edit_cap, $this->posts[0]->ID ) ) {
								$this->posts = array();
							} else {
								$this->is_preview = true;
								if ( 'future' !== $status ) {
									$this->posts[0]->post_date = current_time( 'mysql' );
								}
							}
						} elseif ( $post_status_obj->private ) {
							if ( ! current_user_can( $read_cap, $this->posts[0]->ID ) ) {
								$this->posts = array();
							}
						} else {
							$this->posts = array();
						}
					}
				} elseif ( ! $post_status_obj ) {
					// Post status is not registered, assume it's not public.
					if ( ! current_user_can( $edit_cap, $this->posts[0]->ID ) ) {
						$this->posts = array();
					}
				}
			}

			if ( $this->is_preview && $this->posts && current_user_can( $edit_cap, $this->posts[0]->ID ) ) {
				/**
				 * Filters the single post for preview mode.
				 *
				 * @since 2.7.0
				 *
				 * @param WP_Post  $post_preview  The Post object.
				 * @param WP_Query $query         The WP_Query instance (passed by reference).
				 */
				$this->posts[0] = get_post( apply_filters_ref_array( 'the_preview', array( $this->posts[0], &$this ) ) );
			}
		}

		// Put sticky posts at the top of the posts array.
		$sticky_posts = get_option( 'sticky_posts' );
		if ( $this->is_home && $page <= 1 && is_array( $sticky_posts ) && ! empty( $sticky_posts ) && ! $q['ignore_sticky_posts'] ) {
			$num_posts     = count( $this->posts );
			$sticky_offset = 0;
			// Loop over posts and relocate stickies to the front.
			for ( $i = 0; $i < $num_posts; $i++ ) {
				if ( in_array( $this->posts[ $i ]->ID, $sticky_posts, true ) ) {
					$sticky_post = $this->posts[ $i ];
					// Remove sticky from current position.
					array_splice( $this->posts, $i, 1 );
					// Move to front, after other stickies.
					array_splice( $this->posts, $sticky_offset, 0, array( $sticky_post ) );
					// Increment the sticky offset. The next sticky will be placed at this offset.
					++$sticky_offset;
					// Remove post from sticky posts array.
					$offset = array_search( $sticky_post->ID, $sticky_posts, true );
					unset( $sticky_posts[ $offset ] );
				}
			}

			// If any posts have been excluded specifically, Ignore those that are sticky.
			if ( ! empty( $sticky_posts ) && ! empty( $q['post__not_in'] ) ) {
				$sticky_posts = array_diff( $sticky_posts, $q['post__not_in'] );
			}

			// Fetch sticky posts that weren't in the query results.
			if ( ! empty( $sticky_posts ) ) {
				$stickies = get_posts(
					array(
						'post__in'               => $sticky_posts,
						'post_type'              => $post_type,
						'post_status'            => 'publish',
						'posts_per_page'         => count( $sticky_posts ),
						'suppress_filters'       => $q['suppress_filters'],
						'cache_results'          => $q['cache_results'],
						'update_post_meta_cache' => $q['update_post_meta_cache'],
						'update_post_term_cache' => $q['update_post_term_cache'],
						'lazy_load_term_meta'    => $q['lazy_load_term_meta'],
					)
				);

				foreach ( $stickies as $sticky_post ) {
					array_splice( $this->posts, $sticky_offset, 0, array( $sticky_post ) );
					++$sticky_offset;
				}
			}
		}

		if ( ! $q['suppress_filters'] ) {
			/**
			 * Filters the array of retrieved posts after they've been fetched and
			 * internally processed.
			 *
			 * @since 1.5.0
			 *
			 * @param WP_Post[] $posts Array of post objects.
			 * @param WP_Query  $query The WP_Query instance (passed by reference).
			 */
			$this->posts = apply_filters_ref_array( 'the_posts', array( $this->posts, &$this ) );
		}

		/*
		 * Ensure that any posts added/modified via one of the filters above are
		 * of the type WP_Post and are filtered.
		 */
		if ( $this->posts ) {
			$this->post_count = count( $this->posts );

			/** @var WP_Post[] */
			$this->posts = array_map( 'get_post', $this->posts );

			if ( $q['cache_results'] ) {
				if ( $is_unfiltered_query && $unfiltered_posts === $this->posts ) {
					update_post_caches( $this->posts, $post_type, $q['update_post_term_cache'], $q['update_post_meta_cache'] );
				} else {
					$post_ids = wp_list_pluck( $this->posts, 'ID' );
					_prime_post_caches( $post_ids, $q['update_post_term_cache'], $q['update_post_meta_cache'] );
				}
			}

			/** @var WP_Post */
			$this->post = reset( $this->posts );
		} else {
			$this->post_count = 0;
			$this->posts      = array();
		}

		if ( ! empty( $this->posts ) && $q['update_menu_item_cache'] ) {
			update_menu_item_cache( $this->posts );
		}

		if ( $q['lazy_load_term_meta'] ) {
			wp_queue_posts_for_term_meta_lazyload( $this->posts );
		}

		return $this->posts;
	}

	/**
	 * Sets up the amount of found posts and the number of pages (if limit clause was used)
	 * for the current query.
	 *
	 * @since 3.5.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @param array  $q      Query variables.
	 * @param string $limits LIMIT clauses of the query.
	 */
	private function set_found_posts( $q, $limits ) {
		global $wpdb;

		/*
		 * Bail if posts is an empty array. Continue if posts is an empty string,
		 * null, or false to accommodate caching plugins that fill posts later.
		 */
		if ( $q['no_found_rows'] || ( is_array( $this->posts ) && ! $this->posts ) ) {
			return;
		}

		if ( ! empty( $limits ) ) {
			/**
			 * Filters the query to run for retrieving the found posts.
			 *
			 * @since 2.1.0
			 *
			 * @param string   $found_posts_query The query to run to find the found posts.
			 * @param WP_Query $query             The WP_Query instance (passed by reference).
			 */
			$found_posts_query = apply_filters_ref_array( 'found_posts_query', array( 'SELECT FOUND_ROWS()', &$this ) );

			$this->found_posts = (int) $wpdb->get_var( $found_posts_query );
		} else {
			if ( is_array( $this->posts ) ) {
				$this->found_posts = count( $this->posts );
			} else {
				if ( null === $this->posts ) {
					$this->found_posts = 0;
				} else {
					$this->found_posts = 1;
				}
			}
		}

		/**
		 * Filters the number of found posts for the query.
		 *
		 * @since 2.1.0
		 *
		 * @param int      $found_posts The number of posts found.
		 * @param WP_Query $query       The WP_Query instance (passed by reference).
		 */
		$this->found_posts = (int) apply_filters_ref_array( 'found_posts', array( $this->found_posts, &$this ) );

		if ( ! empty( $limits ) ) {
			$this->max_num_pages = ceil( $this->found_posts / $q['posts_per_page'] );
		}
	}

	/**
	 * Sets up the next post and iterate current post index.
	 *
	 * @since 1.5.0
	 *
	 * @return WP_Post Next post.
	 */
	public function next_post() {

		++$this->current_post;

		/** @var WP_Post */
		$this->post = $this->posts[ $this->current_post ];
		return $this->post;
	}

	/**
	 * Sets up the current post.
	 *
	 * Retrieves the next post, sets up the post, sets the 'in the loop'
	 * property to true.
	 *
	 * @since 1.5.0
	 *
	 * @global WP_Post $post Global post object.
	 */
	public function the_post() {
		global $post;

		if ( ! $this->in_the_loop ) {
			// Only prime the post cache for queries limited to the ID field.
			$post_ids = array_filter( $this->posts, 'is_numeric' );
			// Exclude any falsey values, such as 0.
			$post_ids = array_filter( $post_ids );
			if ( $post_ids ) {
				_prime_post_caches( $post_ids, $this->query_vars['update_post_term_cache'], $this->query_vars['update_post_meta_cache'] );
			}
			$post_objects = array_map( 'get_post', $this->posts );
			update_post_author_caches( $post_objects );
		}

		$this->in_the_loop = true;
		$this->before_loop = false;

		if ( -1 == $this->current_post ) { // Loop has just started.
			/**
			 * Fires once the loop is started.
			 *
			 * @since 2.0.0
			 *
			 * @param WP_Query $query The WP_Query instance (passed by reference).
			 */
			do_action_ref_array( 'loop_start', array( &$this ) );
		}

		$post = $this->next_post();
		$this->setup_postdata( $post );
	}

	/**
	 * Determines whether there are more posts available in the loop.
	 *
	 * Calls the {@see 'loop_end'} action when the loop is complete.
	 *
	 * @since 1.5.0
	 *
	 * @return bool True if posts are available, false if end of the loop.
	 */
	public function have_posts() {
		if ( $this->current_post + 1 < $this->post_count ) {
			return true;
		} elseif ( $this->current_post + 1 == $this->post_count && $this->post_count > 0 ) {
			/**
			 * Fires once the loop has ended.
			 *
			 * @since 2.0.0
			 *
			 * @param WP_Query $query The WP_Query instance (passed by reference).
			 */
			do_action_ref_array( 'loop_end', array( &$this ) );
			// Do some cleaning up after the loop.
			$this->rewind_posts();
		} elseif ( 0 === $this->post_count ) {
			$this->before_loop = false;

			/**
			 * Fires if no results are found in a post query.
			 *
			 * @since 4.9.0
			 *
			 * @param WP_Query $query The WP_Query instance.
			 */
			do_action( 'loop_no_results', $this );
		}

		$this->in_the_loop = false;
		return false;
	}

	/**
	 * Rewinds the posts and resets post index.
	 *
	 * @since 1.5.0
	 */
	public function rewind_posts() {
		$this->current_post = -1;
		if ( $this->post_count > 0 ) {
			$this->post = $this->posts[0];
		}
	}

	/**
	 * Iterates current comment index and returns WP_Comment object.
	 *
	 * @since 2.2.0
	 *
	 * @return WP_Comment Comment object.
	 */
	public function next_comment() {
		++$this->current_comment;

		/** @var WP_Comment */
		$this->comment = $this->comments[ $this->current_comment ];
		return $this->comment;
	}

	/**
	 * Sets up the current comment.
	 *
	 * @since 2.2.0
	 *
	 * @global WP_Comment $comment Global comment object.
	 */
	public function the_comment() {
		global $comment;

		$comment = $this->next_comment();

		if ( 0 == $this->current_comment ) {
			/**
			 * Fires once the comment loop is started.
			 *
			 * @since 2.2.0
			 */
			do_action( 'comment_loop_start' );
		}
	}

	/**
	 * Determines whether there are more comments available.
	 *
	 * Automatically rewinds comments when finished.
	 *
	 * @since 2.2.0
	 *
	 * @return bool True if comments are available, false if no more comments.
	 */
	public function have_comments() {
		if ( $this->current_comment + 1 < $this->comment_count ) {
			return true;
		} elseif ( $this->current_comment + 1 == $this->comment_count ) {
			$this->rewind_comments();
		}

		return false;
	}

	/**
	 * Rewinds the comments, resets the comment index and comment to first.
	 *
	 * @since 2.2.0
	 */
	public function rewind_comments() {
		$this->current_comment = -1;
		if ( $this->comment_count > 0 ) {
			$this->comment = $this->comments[0];
		}
	}

	/**
	 * Sets up the WordPress query by parsing query string.
	 *
	 * @since 1.5.0
	 *
	 * @see WP_Query::parse_query() for all available arguments.
	 *
	 * @param string|array $query URL query string or array of query arguments.
	 * @return WP_Post[]|int[] Array of post objects or post IDs.
	 */
	public function query( $query ) {
		$this->init();
		$this->query      = wp_parse_args( $query );
		$this->query_vars = $this->query;
		return $this->get_posts();
	}

	/**
	 * Retrieves the currently queried object.
	 *
	 * If queried object is not set, then the queried object will be set from
	 * the category, tag, taxonomy, posts page, single post, page, or author
	 * query variable. After it is set up, it will be returned.
	 *
	 * @since 1.5.0
	 *
	 * @return WP_Term|WP_Post_Type|WP_Post|WP_User|null The queried object.
	 */
	public function get_queried_object() {
		if ( isset( $this->queried_object ) ) {
			return $this->queried_object;
		}

		$this->queried_object    = null;
		$this->queried_object_id = null;

		if ( $this->is_category || $this->is_tag || $this->is_tax ) {
			if ( $this->is_category ) {
				$cat           = $this->get( 'cat' );
				$category_name = $this->get( 'category_name' );

				if ( $cat ) {
					$term = get_term( $cat, 'category' );
				} elseif ( $category_name ) {
					$term = get_term_by( 'slug', $category_name, 'category' );
				}
			} elseif ( $this->is_tag ) {
				$tag_id = $this->get( 'tag_id' );
				$tag    = $this->get( 'tag' );

				if ( $tag_id ) {
					$term = get_term( $tag_id, 'post_tag' );
				} elseif ( $tag ) {
					$term = get_term_by( 'slug', $tag, 'post_tag' );
				}
			} else {
				// For other tax queries, grab the first term from the first clause.
				if ( ! empty( $this->tax_query->queried_terms ) ) {
					$queried_taxonomies = array_keys( $this->tax_query->queried_terms );
					$matched_taxonomy   = reset( $queried_taxonomies );
					$query              = $this->tax_query->queried_terms[ $matched_taxonomy ];

					if ( ! empty( $query['terms'] ) ) {
						if ( 'term_id' === $query['field'] ) {
							$term = get_term( reset( $query['terms'] ), $matched_taxonomy );
						} else {
							$term = get_term_by( $query['field'], reset( $query['terms'] ), $matched_taxonomy );
						}
					}
				}
			}

			if ( ! empty( $term ) && ! is_wp_error( $term ) ) {
				$this->queried_object    = $term;
				$this->queried_object_id = (int) $term->term_id;

				if ( $this->is_category && 'category' === $this->queried_object->taxonomy ) {
					_make_cat_compat( $this->queried_object );
				}
			}
		} elseif ( $this->is_post_type_archive ) {
			$post_type = $this->get( 'post_type' );

			if ( is_array( $post_type ) ) {
				$post_type = reset( $post_type );
			}

			$this->queried_object = get_post_type_object( $post_type );
		} elseif ( $this->is_posts_page ) {
			$page_for_posts = get_option( 'page_for_posts' );

			$this->queried_object    = get_post( $page_for_posts );
			$this->queried_object_id = (int) $this->queried_object->ID;
		} elseif ( $this->is_singular && ! empty( $this->post ) ) {
			$this->queried_object    = $this->post;
			$this->queried_object_id = (int) $this->post->ID;
		} elseif ( $this->is_author ) {
			$author      = (int) $this->get( 'author' );
			$author_name = $this->get( 'author_name' );

			if ( $author ) {
				$this->queried_object_id = $author;
			} elseif ( $author_name ) {
				$user = get_user_by( 'slug', $author_name );

				if ( $user ) {
					$this->queried_object_id = $user->ID;
				}
			}

			$this->queried_object = get_userdata( $this->queried_object_id );
		}

		return $this->queried_object;
	}

	/**
	 * Retrieves the ID of the currently queried object.
	 *
	 * @since 1.5.0
	 *
	 * @return int
	 */
	public function get_queried_object_id() {
		$this->get_queried_object();

		if ( isset( $this->queried_object_id ) ) {
			return $this->queried_object_id;
		}

		return 0;
	}

	/**
	 * Constructor.
	 *
	 * Sets up the WordPress query, if parameter is not empty.
	 *
	 * @since 1.5.0
	 *
	 * @see WP_Query::parse_query() for all available arguments.
	 *
	 * @param string|array $query URL query string or array of vars.
	 */
	public function __construct( $query = '' ) {
		if ( ! empty( $query ) ) {
			$this->query( $query );
		}
	}

	/**
	 * Makes private properties readable for backward compatibility.
	 *
	 * @since 4.0.0
	 *
	 * @param string $name Property to get.
	 * @return mixed Property.
	 */
	public function __get( $name ) {
		if ( in_array( $name, $this->compat_fields, true ) ) {
			return $this->$name;
		}
	}

	/**
	 * Makes private properties checkable for backward compatibility.
	 *
	 * @since 4.0.0
	 *
	 * @param string $name Property to check if set.
	 * @return bool Whether the property is set.
	 */
	public function __isset( $name ) {
		if ( in_array( $name, $this->compat_fields, true ) ) {
			return isset( $this->$name );
		}
	}

	/**
	 * Makes private/protected methods readable for backward compatibility.
	 *
	 * @since 4.0.0
	 *
	 * @param string $name      Method to call.
	 * @param array  $arguments Arguments to pass when calling.
	 * @return mixed|false Return value of the callback, false otherwise.
	 */
	public function __call( $name, $arguments ) {
		if ( in_array( $name, $this->compat_methods, true ) ) {
			return $this->$name( ...$arguments );
		}
		return false;
	}

	/**
	 * Determines whether the query is for an existing archive page.
	 *
	 * Archive pages include category, tag, author, date, custom post type,
	 * and custom taxonomy based archives.
	 *
	 * @since 3.1.0
	 *
	 * @see WP_Query::is_category()
	 * @see WP_Query::is_tag()
	 * @see WP_Query::is_author()
	 * @see WP_Query::is_date()
	 * @see WP_Query::is_post_type_archive()
	 * @see WP_Query::is_tax()
	 *
	 * @return bool Whether the query is for an existing archive page.
	 */
	public function is_archive() {
		return (bool) $this->is_archive;
	}

	/**
	 * Determines whether the query is for an existing post type archive page.
	 *
	 * @since 3.1.0
	 *
	 * @param string|string[] $post_types Optional. Post type or array of posts types
	 *                                    to check against. Default empty.
	 * @return bool Whether the query is for an existing post type archive page.
	 */
	public function is_post_type_archive( $post_types = '' ) {
		if ( empty( $post_types ) || ! $this->is_post_type_archive ) {
			return (bool) $this->is_post_type_archive;
		}

		$post_type = $this->get( 'post_type' );
		if ( is_array( $post_type ) ) {
			$post_type = reset( $post_type );
		}
		$post_type_object = get_post_type_object( $post_type );

		if ( ! $post_type_object ) {
			return false;
		}

		return in_array( $post_type_object->name, (array) $post_types, true );
	}

	/**
	 * Determines whether the query is for an existing attachment page.
	 *
	 * @since 3.1.0
	 *
	 * @param int|string|int[]|string[] $attachment Optional. Attachment ID, title, slug, or array of such
	 *                                              to check against. Default empty.
	 * @return bool Whether the query is for an existing attachment page.
	 */
	public function is_attachment( $attachment = '' ) {
		if ( ! $this->is_attachment ) {
			return false;
		}

		if ( empty( $attachment ) ) {
			return true;
		}

		$attachment = array_map( 'strval', (array) $attachment );

		$post_obj = $this->get_queried_object();
		if ( ! $post_obj ) {
			return false;
		}

		if ( in_array( (string) $post_obj->ID, $attachment, true ) ) {
			return true;
		} elseif ( in_array( $post_obj->post_title, $attachment, true ) ) {
			return true;
		} elseif ( in_array( $post_obj->post_name, $attachment, true ) ) {
			return true;
		}
		return false;
	}

	/**
	 * Determines whether the query is for an existing author archive page.
	 *
	 * If the $author parameter is specified, this function will additionally
	 * check if the query is for one of the authors specified.
	 *
	 * @since 3.1.0
	 *
	 * @param int|string|int[]|string[] $author Optional. User ID, nickname, nicename, or array of such
	 *                                          to check against. Default empty.
	 * @return bool Whether the query is for an existing author archive page.
	 */
	public function is_author( $author = '' ) {
		if ( ! $this->is_author ) {
			return false;
		}

		if ( empty( $author ) ) {
			return true;
		}

		$author_obj = $this->get_queried_object();
		if ( ! $author_obj ) {
			return false;
		}

		$author = array_map( 'strval', (array) $author );

		if ( in_array( (string) $author_obj->ID, $author, true ) ) {
			return true;
		} elseif ( in_array( $author_obj->nickname, $author, true ) ) {
			return true;
		} elseif ( in_array( $author_obj->user_nicename, $author, true ) ) {
			return true;
		}

		return false;
	}

	/**
	 * Determines whether the query is for an existing category archive page.
	 *
	 * If the $category parameter is specified, this function will additionally
	 * check if the query is for one of the categories specified.
	 *
	 * @since 3.1.0
	 *
	 * @param int|string|int[]|string[] $category Optional. Category ID, name, slug, or array of such
	 *                                            to check against. Default empty.
	 * @return bool Whether the query is for an existing category archive page.
	 */
	public function is_category( $category = '' ) {
		if ( ! $this->is_category ) {
			return false;
		}

		if ( empty( $category ) ) {
			return true;
		}

		$cat_obj = $this->get_queried_object();
		if ( ! $cat_obj ) {
			return false;
		}

		$category = array_map( 'strval', (array) $category );

		if ( in_array( (string) $cat_obj->term_id, $category, true ) ) {
			return true;
		} elseif ( in_array( $cat_obj->name, $category, true ) ) {
			return true;
		} elseif ( in_array( $cat_obj->slug, $category, true ) ) {
			return true;
		}

		return false;
	}

	/**
	 * Determines whether the query is for an existing tag archive page.
	 *
	 * If the $tag parameter is specified, this function will additionally
	 * check if the query is for one of the tags specified.
	 *
	 * @since 3.1.0
	 *
	 * @param int|string|int[]|string[] $tag Optional. Tag ID, name, slug, or array of such
	 *                                       to check against. Default empty.
	 * @return bool Whether the query is for an existing tag archive page.
	 */
	public function is_tag( $tag = '' ) {
		if ( ! $this->is_tag ) {
			return false;
		}

		if ( empty( $tag ) ) {
			return true;
		}

		$tag_obj = $this->get_queried_object();
		if ( ! $tag_obj ) {
			return false;
		}

		$tag = array_map( 'strval', (array) $tag );

		if ( in_array( (string) $tag_obj->term_id, $tag, true ) ) {
			return true;
		} elseif ( in_array( $tag_obj->name, $tag, true ) ) {
			return true;
		} elseif ( in_array( $tag_obj->slug, $tag, true ) ) {
			return true;
		}

		return false;
	}

	/**
	 * Determines whether the query is for an existing custom taxonomy archive page.
	 *
	 * If the $taxonomy parameter is specified, this function will additionally
	 * check if the query is for that specific $taxonomy.
	 *
	 * If the $term parameter is specified in addition to the $taxonomy parameter,
	 * this function will additionally check if the query is for one of the terms
	 * specified.
	 *
	 * @since 3.1.0
	 *
	 * @global WP_Taxonomy[] $wp_taxonomies Registered taxonomies.
	 *
	 * @param string|string[]           $taxonomy Optional. Taxonomy slug or slugs to check against.
	 *                                            Default empty.
	 * @param int|string|int[]|string[] $term     Optional. Term ID, name, slug, or array of such
	 *                                            to check against. Default empty.
	 * @return bool Whether the query is for an existing custom taxonomy archive page.
	 *              True for custom taxonomy archive pages, false for built-in taxonomies
	 *              (category and tag archives).
	 */
	public function is_tax( $taxonomy = '', $term = '' ) {
		global $wp_taxonomies;

		if ( ! $this->is_tax ) {
			return false;
		}

		if ( empty( $taxonomy ) ) {
			return true;
		}

		$queried_object = $this->get_queried_object();
		$tax_array      = array_intersect( array_keys( $wp_taxonomies ), (array) $taxonomy );
		$term_array     = (array) $term;

		// Check that the taxonomy matches.
		if ( ! ( isset( $queried_object->taxonomy ) && count( $tax_array ) && in_array( $queried_object->taxonomy, $tax_array, true ) ) ) {
			return false;
		}

		// Only a taxonomy provided.
		if ( empty( $term ) ) {
			return true;
		}

		return isset( $queried_object->term_id ) &&
			count(
				array_intersect(
					array( $queried_object->term_id, $queried_object->name, $queried_object->slug ),
					$term_array
				)
			);
	}

	/**
	 * Determines whether the current URL is within the comments popup window.
	 *
	 * @since 3.1.0
	 * @deprecated 4.5.0
	 *
	 * @return false Always returns false.
	 */
	public function is_comments_popup() {
		_deprecated_function( __FUNCTION__, '4.5.0' );

		return false;
	}

	/**
	 * Determines whether the query is for an existing date archive.
	 *
	 * @since 3.1.0
	 *
	 * @return bool Whether the query is for an existing date archive.
	 */
	public function is_date() {
		return (bool) $this->is_date;
	}

	/**
	 * Determines whether the query is for an existing day archive.
	 *
	 * @since 3.1.0
	 *
	 * @return bool Whether the query is for an existing day archive.
	 */
	public function is_day() {
		return (bool) $this->is_day;
	}

	/**
	 * Determines whether the query is for a feed.
	 *
	 * @since 3.1.0
	 *
	 * @param string|string[] $feeds Optional. Feed type or array of feed types
	 *                                         to check against. Default empty.
	 * @return bool Whether the query is for a feed.
	 */
	public function is_feed( $feeds = '' ) {
		if ( empty( $feeds ) || ! $this->is_feed ) {
			return (bool) $this->is_feed;
		}

		$qv = $this->get( 'feed' );
		if ( 'feed' === $qv ) {
			$qv = get_default_feed();
		}

		return in_array( $qv, (array) $feeds, true );
	}

	/**
	 * Determines whether the query is for a comments feed.
	 *
	 * @since 3.1.0
	 *
	 * @return bool Whether the query is for a comments feed.
	 */
	public function is_comment_feed() {
		return (bool) $this->is_comment_feed;
	}

	/**
	 * Determines whether the query is for the front page of the site.
	 *
	 * This is for what is displayed at your site's main URL.
	 *
	 * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_on_front'.
	 *
	 * If you set a static page for the front page of your site, this function will return
	 * true when viewing that page.
	 *
	 * Otherwise the same as {@see WP_Query::is_home()}.
	 *
	 * @since 3.1.0
	 *
	 * @return bool Whether the query is for the front page of the site.
	 */
	public function is_front_page() {
		// Most likely case.
		if ( 'posts' === get_option( 'show_on_front' ) && $this->is_home() ) {
			return true;
		} elseif ( 'page' === get_option( 'show_on_front' ) && get_option( 'page_on_front' )
			&& $this->is_page( get_option( 'page_on_front' ) )
		) {
			return true;
		} else {
			return false;
		}
	}

	/**
	 * Determines whether the query is for the blog homepage.
	 *
	 * This is the page which shows the time based blog content of your site.
	 *
	 * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_for_posts'.
	 *
	 * If you set a static page for the front page of your site, this function will return
	 * true only on the page you set as the "Posts page".
	 *
	 * @since 3.1.0
	 *
	 * @see WP_Query::is_front_page()
	 *
	 * @return bool Whether the query is for the blog homepage.
	 */
	public function is_home() {
		return (bool) $this->is_home;
	}

	/**
	 * Determines whether the query is for the Privacy Policy page.
	 *
	 * This is the page which shows the Privacy Policy content of your site.
	 *
	 * Depends on the site's "Change your Privacy Policy page" Privacy Settings 'wp_page_for_privacy_policy'.
	 *
	 * This function will return true only on the page you set as the "Privacy Policy page".
	 *
	 * @since 5.2.0
	 *
	 * @return bool Whether the query is for the Privacy Policy page.
	 */
	public function is_privacy_policy() {
		if ( get_option( 'wp_page_for_privacy_policy' )
			&& $this->is_page( get_option( 'wp_page_for_privacy_policy' ) )
		) {
			return true;
		} else {
			return false;
		}
	}

	/**
	 * Determines whether the query is for an existing month archive.
	 *
	 * @since 3.1.0
	 *
	 * @return bool Whether the query is for an existing month archive.
	 */
	public function is_month() {
		return (bool) $this->is_month;
	}

	/**
	 * Determines whether the query is for an existing single page.
	 *
	 * If the $page parameter is specified, this function will additionally
	 * check if the query is for one of the pages specified.
	 *
	 * @since 3.1.0
	 *
	 * @see WP_Query::is_single()
	 * @see WP_Query::is_singular()
	 *
	 * @param int|string|int[]|string[] $page Optional. Page ID, title, slug, path, or array of such
	 *                                        to check against. Default empty.
	 * @return bool Whether the query is for an existing single page.
	 */
	public function is_page( $page = '' ) {
		if ( ! $this->is_page ) {
			return false;
		}

		if ( empty( $page ) ) {
			return true;
		}

		$page_obj = $this->get_queried_object();
		if ( ! $page_obj ) {
			return false;
		}

		$page = array_map( 'strval', (array) $page );

		if ( in_array( (string) $page_obj->ID, $page, true ) ) {
			return true;
		} elseif ( in_array( $page_obj->post_title, $page, true ) ) {
			return true;
		} elseif ( in_array( $page_obj->post_name, $page, true ) ) {
			return true;
		} else {
			foreach ( $page as $pagepath ) {
				if ( ! strpos( $pagepath, '/' ) ) {
					continue;
				}
				$pagepath_obj = get_page_by_path( $pagepath );

				if ( $pagepath_obj && ( $pagepath_obj->ID == $page_obj->ID ) ) {
					return true;
				}
			}
		}

		return false;
	}

	/**
	 * Determines whether the query is for a paged result and not for the first page.
	 *
	 * @since 3.1.0
	 *
	 * @return bool Whether the query is for a paged result.
	 */
	public function is_paged() {
		return (bool) $this->is_paged;
	}

	/**
	 * Determines whether the query is for a post or page preview.
	 *
	 * @since 3.1.0
	 *
	 * @return bool Whether the query is for a post or page preview.
	 */
	public function is_preview() {
		return (bool) $this->is_preview;
	}

	/**
	 * Determines whether the query is for the robots.txt file.
	 *
	 * @since 3.1.0
	 *
	 * @return bool Whether the query is for the robots.txt file.
	 */
	public function is_robots() {
		return (bool) $this->is_robots;
	}

	/**
	 * Determines whether the query is for the favicon.ico file.
	 *
	 * @since 5.4.0
	 *
	 * @return bool Whether the query is for the favicon.ico file.
	 */
	public function is_favicon() {
		return (bool) $this->is_favicon;
	}

	/**
	 * Determines whether the query is for a search.
	 *
	 * @since 3.1.0
	 *
	 * @return bool Whether the query is for a search.
	 */
	public function is_search() {
		return (bool) $this->is_search;
	}

	/**
	 * Determines whether the query is for an existing single post.
	 *
	 * Works for any post type excluding pages.
	 *
	 * If the $post parameter is specified, this function will additionally
	 * check if the query is for one of the Posts specified.
	 *
	 * @since 3.1.0
	 *
	 * @see WP_Query::is_page()
	 * @see WP_Query::is_singular()
	 *
	 * @param int|string|int[]|string[] $post Optional. Post ID, title, slug, path, or array of such
	 *                                        to check against. Default empty.
	 * @return bool Whether the query is for an existing single post.
	 */
	public function is_single( $post = '' ) {
		if ( ! $this->is_single ) {
			return false;
		}

		if ( empty( $post ) ) {
			return true;
		}

		$post_obj = $this->get_queried_object();
		if ( ! $post_obj ) {
			return false;
		}

		$post = array_map( 'strval', (array) $post );

		if ( in_array( (string) $post_obj->ID, $post, true ) ) {
			return true;
		} elseif ( in_array( $post_obj->post_title, $post, true ) ) {
			return true;
		} elseif ( in_array( $post_obj->post_name, $post, true ) ) {
			return true;
		} else {
			foreach ( $post as $postpath ) {
				if ( ! strpos( $postpath, '/' ) ) {
					continue;
				}
				$postpath_obj = get_page_by_path( $postpath, OBJECT, $post_obj->post_type );

				if ( $postpath_obj && ( $postpath_obj->ID == $post_obj->ID ) ) {
					return true;
				}
			}
		}
		return false;
	}

	/**
	 * Determines whether the query is for an existing single post of any post type
	 * (post, attachment, page, custom post types).
	 *
	 * If the $post_types parameter is specified, this function will additionally
	 * check if the query is for one of the Posts Types specified.
	 *
	 * @since 3.1.0
	 *
	 * @see WP_Query::is_page()
	 * @see WP_Query::is_single()
	 *
	 * @param string|string[] $post_types Optional. Post type or array of post types
	 *                                    to check against. Default empty.
	 * @return bool Whether the query is for an existing single post
	 *              or any of the given post types.
	 */
	public function is_singular( $post_types = '' ) {
		if ( empty( $post_types ) || ! $this->is_singular ) {
			return (bool) $this->is_singular;
		}

		$post_obj = $this->get_queried_object();
		if ( ! $post_obj ) {
			return false;
		}

		return in_array( $post_obj->post_type, (array) $post_types, true );
	}

	/**
	 * Determines whether the query is for a specific time.
	 *
	 * @since 3.1.0
	 *
	 * @return bool Whether the query is for a specific time.
	 */
	public function is_time() {
		return (bool) $this->is_time;
	}

	/**
	 * Determines whether the query is for a trackback endpoint call.
	 *
	 * @since 3.1.0
	 *
	 * @return bool Whether the query is for a trackback endpoint call.
	 */
	public function is_trackback() {
		return (bool) $this->is_trackback;
	}

	/**
	 * Determines whether the query is for an existing year archive.
	 *
	 * @since 3.1.0
	 *
	 * @return bool Whether the query is for an existing year archive.
	 */
	public function is_year() {
		return (bool) $this->is_year;
	}

	/**
	 * Determines whether the query is a 404 (returns no results).
	 *
	 * @since 3.1.0
	 *
	 * @return bool Whether the query is a 404 error.
	 */
	public function is_404() {
		return (bool) $this->is_404;
	}

	/**
	 * Determines whether the query is for an embedded post.
	 *
	 * @since 4.4.0
	 *
	 * @return bool Whether the query is for an embedded post.
	 */
	public function is_embed() {
		return (bool) $this->is_embed;
	}

	/**
	 * Determines whether the query is the main query.
	 *
	 * @since 3.3.0
	 *
	 * @global WP_Query $wp_query WordPress Query object.
	 *
	 * @return bool Whether the query is the main query.
	 */
	public function is_main_query() {
		global $wp_the_query;
		return $wp_the_query === $this;
	}

	/**
	 * Sets up global post data.
	 *
	 * @since 4.1.0
	 * @since 4.4.0 Added the ability to pass a post ID to `$post`.
	 *
	 * @global int     $id
	 * @global WP_User $authordata
	 * @global string  $currentday
	 * @global string  $currentmonth
	 * @global int     $page
	 * @global array   $pages
	 * @global int     $multipage
	 * @global int     $more
	 * @global int     $numpages
	 *
	 * @param WP_Post|object|int $post WP_Post instance or Post ID/object.
	 * @return true True when finished.
	 */
	public function setup_postdata( $post ) {
		global $id, $authordata, $currentday, $currentmonth, $page, $pages, $multipage, $more, $numpages;

		if ( ! ( $post instanceof WP_Post ) ) {
			$post = get_post( $post );
		}

		if ( ! $post ) {
			return;
		}

		$elements = $this->generate_postdata( $post );
		if ( false === $elements ) {
			return;
		}

		$id           = $elements['id'];
		$authordata   = $elements['authordata'];
		$currentday   = $elements['currentday'];
		$currentmonth = $elements['currentmonth'];
		$page         = $elements['page'];
		$pages        = $elements['pages'];
		$multipage    = $elements['multipage'];
		$more         = $elements['more'];
		$numpages     = $elements['numpages'];

		/**
		 * Fires once the post data has been set up.
		 *
		 * @since 2.8.0
		 * @since 4.1.0 Introduced `$query` parameter.
		 *
		 * @param WP_Post  $post  The Post object (passed by reference).
		 * @param WP_Query $query The current Query object (passed by reference).
		 */
		do_action_ref_array( 'the_post', array( &$post, &$this ) );

		return true;
	}

	/**
	 * Generates post data.
	 *
	 * @since 5.2.0
	 *
	 * @param WP_Post|object|int $post WP_Post instance or Post ID/object.
	 * @return array|false Elements of post or false on failure.
	 */
	public function generate_postdata( $post ) {

		if ( ! ( $post instanceof WP_Post ) ) {
			$post = get_post( $post );
		}

		if ( ! $post ) {
			return false;
		}

		$id = (int) $post->ID;

		$authordata = get_userdata( $post->post_author );

		$currentday   = false;
		$currentmonth = false;

		$post_date = $post->post_date;
		if ( ! empty( $post_date ) && '0000-00-00 00:00:00' !== $post_date ) {
			// Avoid using mysql2date for performance reasons.
			$currentmonth = substr( $post_date, 5, 2 );
			$day          = substr( $post_date, 8, 2 );
			$year         = substr( $post_date, 2, 2 );

			$currentday = sprintf( '%s.%s.%s', $day, $currentmonth, $year );
		}

		$numpages  = 1;
		$multipage = 0;
		$page      = $this->get( 'page' );
		if ( ! $page ) {
			$page = 1;
		}

		/*
		 * Force full post content when viewing the permalink for the $post,
		 * or when on an RSS feed. Otherwise respect the 'more' tag.
		 */
		if ( get_queried_object_id() === $post->ID && ( $this->is_page() || $this->is_single() ) ) {
			$more = 1;
		} elseif ( $this->is_feed() ) {
			$more = 1;
		} else {
			$more = 0;
		}

		$content = $post->post_content;
		if ( str_contains( $content, '<!--nextpage-->' ) ) {
			$content = str_replace( "\n<!--nextpage-->\n", '<!--nextpage-->', $content );
			$content = str_replace( "\n<!--nextpage-->", '<!--nextpage-->', $content );
			$content = str_replace( "<!--nextpage-->\n", '<!--nextpage-->', $content );

			// Remove the nextpage block delimiters, to avoid invalid block structures in the split content.
			$content = str_replace( '<!-- wp:nextpage -->', '', $content );
			$content = str_replace( '<!-- /wp:nextpage -->', '', $content );

			// Ignore nextpage at the beginning of the content.
			if ( str_starts_with( $content, '<!--nextpage-->' ) ) {
				$content = substr( $content, 15 );
			}

			$pages = explode( '<!--nextpage-->', $content );
		} else {
			$pages = array( $post->post_content );
		}

		/**
		 * Filters the "pages" derived from splitting the post content.
		 *
		 * "Pages" are determined by splitting the post content based on the presence
		 * of `<!-- nextpage -->` tags.
		 *
		 * @since 4.4.0
		 *
		 * @param string[] $pages Array of "pages" from the post content split by `<!-- nextpage -->` tags.
		 * @param WP_Post  $post  Current post object.
		 */
		$pages = apply_filters( 'content_pagination', $pages, $post );

		$numpages = count( $pages );

		if ( $numpages > 1 ) {
			if ( $page > 1 ) {
				$more = 1;
			}
			$multipage = 1;
		} else {
			$multipage = 0;
		}

		$elements = compact( 'id', 'authordata', 'currentday', 'currentmonth', 'page', 'pages', 'multipage', 'more', 'numpages' );

		return $elements;
	}

	/**
	 * Generates cache key.
	 *
	 * @since 6.1.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @param array  $args Query arguments.
	 * @param string $sql  SQL statement.
	 * @return string Cache key.
	 */
	protected function generate_cache_key( array $args, $sql ) {
		global $wpdb;

		unset(
			$args['cache_results'],
			$args['fields'],
			$args['lazy_load_term_meta'],
			$args['update_post_meta_cache'],
			$args['update_post_term_cache'],
			$args['update_menu_item_cache'],
			$args['suppress_filters']
		);

		$placeholder = $wpdb->placeholder_escape();
		array_walk_recursive(
			$args,
			/*
			 * Replace wpdb placeholders with the string used in the database
			 * query to avoid unreachable cache keys. This is necessary because
			 * the placeholder is randomly generated in each request.
			 *
			 * $value is passed by reference to allow it to be modified.
			 * array_walk_recursive() does not return an array.
			 */
			static function ( &$value ) use ( $wpdb, $placeholder ) {
				if ( is_string( $value ) && str_contains( $value, $placeholder ) ) {
					$value = $wpdb->remove_placeholder_escape( $value );
				}
			}
		);

		// Replace wpdb placeholder in the SQL statement used by the cache key.
		$sql = $wpdb->remove_placeholder_escape( $sql );
		$key = md5( serialize( $args ) . $sql );

		$last_changed = wp_cache_get_last_changed( 'posts' );
		if ( ! empty( $this->tax_query->queries ) ) {
			$last_changed .= wp_cache_get_last_changed( 'terms' );
		}

		return "wp_query:$key:$last_changed";
	}

	/**
	 * After looping through a nested query, this function
	 * restores the $post global to the current post in this query.
	 *
	 * @since 3.7.0
	 *
	 * @global WP_Post $post Global post object.
	 */
	public function reset_postdata() {
		if ( ! empty( $this->post ) ) {
			$GLOBALS['post'] = $this->post;
			$this->setup_postdata( $this->post );
		}
	}

	/**
	 * Lazyloads term meta for posts in the loop.
	 *
	 * @since 4.4.0
	 * @deprecated 4.5.0 See wp_queue_posts_for_term_meta_lazyload().
	 *
	 * @param mixed $check
	 * @param int   $term_id
	 * @return mixed
	 */
	public function lazyload_term_meta( $check, $term_id ) {
		_deprecated_function( __METHOD__, '4.5.0' );
		return $check;
	}

	/**
	 * Lazyloads comment meta for comments in the loop.
	 *
	 * @since 4.4.0
	 * @deprecated 4.5.0 See wp_lazyload_comment_meta().
	 *
	 * @param mixed $check
	 * @param int   $comment_id
	 * @return mixed
	 */
	public function lazyload_comment_meta( $check, $comment_id ) {
		_deprecated_function( __METHOD__, '4.5.0' );
		return $check;
	}
}