PHPStan improvements

composer.json

@@ -12,7 +12,7 @@
         }
     ],
     "require": {
-        "wp-cli/wp-cli": "^2.12"
+        "wp-cli/wp-cli": "^2.13"
     },
     "require-dev": {
         "wp-cli/db-command": "^1.3 || ^2",

phpcs.xml.dist

@@ -83,4 +83,7 @@
 		<exclude-pattern>*/src/Language_Namespace\.php$</exclude-pattern>
 	</rule>
 
+	<rule ref="WordPress.NamingConventions.PrefixAllGlobals">
+		<exclude-pattern>*/tests/phpstan</exclude-pattern>
+	</rule>
 </ruleset>

phpstan.neon.dist

@@ -7,6 +7,7 @@ parameters:
     - vendor/wp-cli/wp-cli/php
   scanFiles:
     - vendor/php-stubs/wordpress-stubs/wordpress-stubs.php
+    - tests/phpstan/scan-files.php
   treatPhpDocTypesAsCertain: false
   strictRules:
     uselessCast: true
@@ -16,7 +17,4 @@ parameters:
     numericOperandsInArithmeticOperators: true
     switchConditionsMatchingType: true
   ignoreErrors:
-    - identifier: missingType.iterableValue
-    - identifier: missingType.property
-    - identifier: missingType.parameter
     - identifier: missingType.return

src/Core_Language_Command.php

@@ -386,6 +386,9 @@ public function activate( $args ) {
 		$this->activate_language( $language_code );
 	}
 
+	/**
+	 * @param string $language_code
+	 */
 	private function activate_language( $language_code ) {
 		$available = $this->get_installed_languages();
 

src/Plugin_Language_Command.php

@@ -263,15 +263,18 @@ public function install( $args, $assoc_args ) {
 		if ( $all ) {
 			$this->install_many( $args, $assoc_args );
 		} else {
+			/**
+			 * @var non-empty-list<string> $args
+			 */
 			$this->install_one( $args, $assoc_args );
 		}
 	}
 
 	/**
 	 * Installs translations for a plugin.
 	 *
-	 * @param array $args       Runtime arguments.
-	 * @param array $assoc_args Runtime arguments.
+	 * @param non-empty-list<string> $args Positional arguments.
+	 * @param array{all?: bool, format: string} $assoc_args Associative arguments.
 	 */
 	private function install_one( $args, $assoc_args ) {
 		$plugin         = array_shift( $args );
@@ -314,8 +317,8 @@ private function install_one( $args, $assoc_args ) {
 	/**
 	 * Installs translations for all installed plugins.
 	 *
-	 * @param array $args       Runtime arguments.
-	 * @param array $assoc_args Runtime arguments.
+	 * @param string[] $args Positional arguments.
+	 * @param array{all?: bool, format: string} $assoc_args Associative arguments.
 	 */
 	private function install_many( $args, $assoc_args ) {
 		$language_codes = (array) $args;
@@ -627,7 +630,7 @@ public function update( $args, $assoc_args ) {
 	 * Uses the same filter core uses in plugins.php to determine which plugins
 	 * should be available to manage through the WP_Plugins_List_Table class.
 	 *
-	 * @return array
+	 * @return array<string, array{Name: string}>
 	 */
 	private function get_all_plugins() {
 		// phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound -- Using WP native hook.

src/Site_Switch_Language_Command.php

@@ -17,6 +17,9 @@ class Site_Switch_Language_Command extends WP_CLI\CommandWithTranslation {
 	 *     Success: Language activated.
 	 *
 	 * @throws WP_CLI\ExitException
+	 *
+	 * @param array{0: string} $args Positional arguments.
+	 * @param array<mixed> $assoc_args Associative arguments.
 	 */
 	public function __invoke( $args, $assoc_args ) {
 		list( $language_code ) = $args;

src/Theme_Language_Command.php

@@ -268,15 +268,18 @@ public function install( $args, $assoc_args ) {
 		if ( $all ) {
 			$this->install_many( $args, $assoc_args );
 		} else {
+			/**
+			 * @var non-empty-list<string> $args
+			 */
 			$this->install_one( $args, $assoc_args );
 		}
 	}
 
 	/**
 	 * Installs translations for a theme.
 	 *
-	 * @param array $args       Runtime arguments.
-	 * @param array $assoc_args Runtime arguments.
+	 * @param non-empty-list<string> $args Positional arguments.
+	 * @param array{all?: bool, format: string} $assoc_args Associative arguments.
 	 */
 	private function install_one( $args, $assoc_args ) {
 		$theme          = array_shift( $args );
@@ -318,8 +321,8 @@ private function install_one( $args, $assoc_args ) {
 	/**
 	 * Installs translations for all installed themes.
 	 *
-	 * @param array $args       Runtime arguments.
-	 * @param array $assoc_args Runtime arguments.
+	 * @param string[] $args Positional arguments.
+	 * @param array{all?: bool, format: string} $assoc_args Associative arguments.
 	 */
 	private function install_many( $args, $assoc_args ) {
 		$language_codes = (array) $args;

src/WP_CLI/CommandWithTranslation.php

@@ -11,12 +11,21 @@
  * @package wp-cli
  */
 abstract class CommandWithTranslation extends WP_CLI_Command {
+	/**
+	 * @var string
+	 */
 	protected $obj_type;
 
+	/**
+	 * @var string[]
+	 */
 	protected $obj_fields;
 
 	/**
 	 * Callback to sort array by a 'language' key.
+	 *
+	 * @param array{language: string, english_name: string, native_name: string, updated: string} $a
+	 * @param array{language: string, english_name: string, native_name: string, updated: string} $b
 	 */
 	protected function sort_translations_callback( $a, $b ) {
 		return strnatcasecmp( $a['language'], $b['language'] );
@@ -66,7 +75,7 @@ public function update( $args, $assoc_args ) {
 					$plugins = get_plugins( '/' . $update->slug );
 
 					/**
-					 * @var array{Name: string}> $plugin_data
+					 * @var array{Name: string} $plugin_data
 					 */
 					$plugin_data = array_shift( $plugins );
 					$name        = $plugin_data['Name'];
@@ -115,6 +124,8 @@ public function update( $args, $assoc_args ) {
 					 */
 					$upgrader_instance = Utils\get_upgrader( $upgrader );
 
+					// Wrong docblock in core.
+					// @phpstan-ignore argument.type
 					$result = $upgrader_instance->upgrade( $update );
 
 					$results[] = $result;
@@ -157,7 +168,7 @@ public function update( $args, $assoc_args ) {
 	 *
 	 * @see wp_get_translation_updates()
 	 *
-	 * @return array
+	 * @return array<object{type: string, slug: string, language: string}&\stdClass>
 	 */
 	protected function get_translation_updates() {
 		$available = $this->get_installed_languages();
@@ -202,7 +213,7 @@ protected function get_translation_updates() {
 		$updates = array();
 
 		/**
-		 * @var object{translations: array} $transient
+		 * @var object{translations: list<array{type: string, slug: string, language: string}>} $transient
 		 */
 		$transient = get_site_transient( $transient );
 
@@ -214,6 +225,10 @@ protected function get_translation_updates() {
 			$updates[] = (object) $translation;
 		}
 
+		/**
+		 * @var array<object{type: string, slug: string, language: string}&\stdClass> $updates
+		 */
+
 		return $updates;
 	}
 
@@ -376,6 +391,8 @@ protected function get_all_languages( $slug = null ) {
 	 *
 	 * @param array $assoc_args Parameters passed to command. Determines formatting.
 	 * @return Formatter
+	 *
+	 * @phpstan-ignore missingType.iterableValue
 	 */
 	protected function get_formatter( &$assoc_args ) {
 		return new Formatter( $assoc_args, $this->obj_fields, $this->obj_type );

src/WP_CLI/LanguagePackUpgrader.php

@@ -57,6 +57,8 @@ public function generic_strings() {
 	 * @param bool   $check_signatures Whether to validate file signatures. Default false.
 	 * @param array  $hook_extra       Extra arguments to pass to the filter hooks. Default empty array.
 	 * @return string|\WP_Error The full path to the downloaded package file, or a WP_Error object.
+	 *
+	 * @phpstan-ignore missingType.iterableValue
 	 */
 	public function download_package( $package, $check_signatures = false, $hook_extra = [] ) {
 

tests/phpstan/scan-files.php

@@ -0,0 +1,3 @@
+<?php
+
+define( 'WPINC', '' );