Add phpdoc type hints and add WP 4.5 to build matrix

.travis.yml

@@ -9,6 +9,7 @@ php:
     - 7.0
 
 env:
+    - WP_VERSION=4.5 WP_MULTISITE=0
     - WP_VERSION=trunk WP_MULTISITE=0
     - WP_VERSION=trunk WP_MULTISITE=1
 

php/class-wp-customize-post-field-partial.php

@@ -111,6 +111,12 @@ public function render_callback( WP_Customize_Partial $partial, $context = array
 			return false;
 		}
 
+		/**
+		 * Partial.
+		 *
+		 * @var WP_Customize_Post_Field_Partial $partial
+		 */
+
 		$GLOBALS['post'] = $post; // WPCS: override global ok.
 		setup_postdata( $post );
 		if ( 'post_title' === $this->field_id ) {

php/class-wp-customize-posts-preview.php

@@ -465,6 +465,11 @@ public function export_registered_settings( $results ) {
 
 		$results['customize_post_settings'] = array();
 		foreach ( $this->component->manager->settings() as $setting ) {
+			/**
+			 * Setting.
+			 *
+			 * @var WP_Customize_Setting $setting
+			 */
 			if ( ! $setting->check_capabilities() ) {
 				continue;
 			}