Add __get and __call for WP_Query (#220)

* Add __get and __call for WP_Query

* Fix wp_query test

* Add note about void->null conversion

* Fix cs

* Fix cs

Author: IanDelMar

functionMap.php

@@ -192,4 +192,5 @@
     'size_format' => ["(\$bytes is not numeric ? false : (\$bytes is negative-int|'0' ? false : string))"],
     'WP_Translations::translate' => ['($singular is null ? null : string)'],
     'WP_Translations::translate_plural' => ['($singular is null ? null : ($plural is null ? T : string))', '@phpstan-template T' => 'of string|null', 'singular' => 'T', 'count' => 'int'],
+    'WP_Query' => [null, '@phpstan-property-read bool $query_vars_changed' => '', '@phpstan-property-read bool|string $query_vars_hash' => '', '@phpstan-method void init_query_flags()' => ''],
 ];

tests/TypeInferenceTest.php

@@ -55,6 +55,7 @@ public function dataFileAsserts(): iterable
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_list_categories.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_list_pages.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_parse_list.php');
+        yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_query.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_rest_request.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_tag_cloud.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_theme.php');

tests/data/wp_query.php

@@ -0,0 +1,23 @@
+<?php
+
+/**
+ * Note:
+ * Starting from PHPStan 1.10.49, void types, including void in unions, are
+ * transformed into null.
+ *
+ * @link https://github.com/phpstan/phpstan-src/pull/2778
+ */
+
+declare(strict_types=1);
+
+namespace PhpStubs\WordPress\Core\Tests;
+
+use WP_Query;
+
+use function PHPStan\Testing\assertType;
+
+$wpQuery = new WP_Query();
+
+assertType('bool', $wpQuery->query_vars_changed);
+assertType('bool|string', $wpQuery->query_vars_hash);
+assertType('null', $wpQuery->init_query_flags());

wordpress-stubs.php

@@ -46297,6 +46297,9 @@ public function to_array()
      *
      * @since 1.5.0
      * @since 4.5.0 Removed the `$comments_popup` property.
+     * @phpstan-property-read bool $query_vars_changed
+     * @phpstan-property-read bool|string $query_vars_hash
+     * @phpstan-method void init_query_flags()
      */
     #[\AllowDynamicProperties]
     class WP_Query