Psalm cleanup pass.

src/Record/Collector/Hook_Collector.php

@@ -20,13 +20,19 @@ class Hook_Collector extends Stopwatch_Collector {
 	/** @var array $events */
 	protected $events = [];
 
-	/** @var array */
+	/**
+	 * @var array $callbacks
+	 * @psalm-var array<string, \WP_Hook> $callbacks
+	 */
 	protected $callbacks = [];
 
 	/** @var Hook_Formatter */
 	protected $formatter;
 
-	/** @var array $calls Tracks number of calls for recurrent events. */
+	/**
+	 * @var array $calls Tracks number of calls for recurrent events.
+	 * @psalm-var array<string, int> $calls
+	 */
 	private $calls = [];
 
 	/**
@@ -55,7 +61,7 @@ class Hook_Collector extends Stopwatch_Collector {
 	/**
 	 * Time the point between network/MU plugins and regular if network activated.
 	 */
-	public function muplugins_loaded() {
+	public function muplugins_loaded(): void {
 		$this->stop( 'Network & MU Plugins Load' );
 		$this->start( 'Plugins Load', 'plugin' );
 	}
@@ -97,6 +103,9 @@ class Hook_Collector extends Stopwatch_Collector {
 	 * @param string|null $stop           Stop hook name (defaults to start name). Pass empty string to ignore.
 	 * @param int         $start_priority Start hook priority (defaults to -1).
 	 * @param int         $stop_priority  Stop hook priority (defaults to max int).
+	 *
+	 * @psalm-suppress MissingClosureReturnType
+	 * @psalm-suppress MissingClosureParamType
 	 */
 	private function add_event(
 		string $event,
@@ -116,11 +125,13 @@ class Hook_Collector extends Stopwatch_Collector {
 				$event .= $this->get_count_suffix( $event, true );
 
 				if ( 'Sidebar' === $event ) {
+					/** @var string $input */
 					$event = $input;
 				}
 
 				if ( $start === $stop ) {
 					global $wp_filter;
+					/** @psalm-var array<string, \WP_Hook> $wp_filter */
 					$this->callbacks[ $event ] = $wp_filter[ $start ];
 				}
 
@@ -136,6 +147,7 @@ class Hook_Collector extends Stopwatch_Collector {
 				$event .= $this->get_count_suffix( $event );
 
 				if ( 'Sidebar' === $event ) {
+					/** @var string $input */
 					$event = $input;
 				}
 

src/Record/Collector/Http_Collector.php

@@ -16,7 +16,10 @@ class Http_Collector extends Stopwatch_Collector {
 	/** @var Backtrace_Formatter */
 	private $formatter;
 
-	/** @var array */
+	/**
+	 * @var array $callers
+	 * @psalm-var array<string, string> $callers
+	 */
 	private $callers = [];
 
 	/**
@@ -39,7 +42,7 @@ class Http_Collector extends Stopwatch_Collector {
 	 * @param array                 $args  HTTP request arguments.
 	 * @param string                $url   The request URL.
 	 *
-	 * @return boolean
+	 * @return false|array|\WP_Error
 	 */
 	public function pre_http_request( $false, array $args, string $url ) {
 

src/Record/Collector/Plugin_Load_Collector.php

@@ -54,10 +54,8 @@ class Plugin_Load_Collector implements Record_Collector_Interface {
 	 * Converts recorded information into a Record instance.
 	 *
 	 * @param array $entry Data entry for the plugin.
-	 *
-	 * @return Record_Interface
 	 */
-	private function create_record( array $entry ): Record_Interface {
+	private function create_record( array $entry ): Record {
 		return new Record(
 			plugin_basename( $entry['name'] ),
 			$entry['origin'],

src/Record/Collector/Sql_Collector.php

@@ -8,6 +8,8 @@ use Rarst\Laps\Record\Record;
 
 /**
  * Processes SQL events from data logged by wpdb.
+ *
+ * @template QueryData as array{0: string, 1: float, 2: string, 3: float}
  */
 class Sql_Collector implements Record_Collector_Interface {
 
@@ -59,11 +61,13 @@ class Sql_Collector implements Record_Collector_Interface {
 
 		global $wpdb;
 
+		/** @psalm-suppress MixedPropertyFetch */
 		if ( empty( $wpdb->queries ) ) {
 			return [];
 		}
 
 		/** @var array $wpdb->queries */
+		/** @psalm-var array<int, QueryData> $wpdb->queries */
 		$records = array_filter( array_map( [ $this, 'transform' ], array_keys( $wpdb->queries ), $wpdb->queries ) );
 
 		return $records;

src/Record/Collector/Stopwatch_Collector.php

@@ -51,6 +51,7 @@ class Stopwatch_Collector implements Record_Collector_Interface {
 	 */
 	public function get_records(): array {
 
+		/** @psalm-var array<string, StopwatchEvent> $events */
 		$events = $this->stopwatch->getSectionEvents( '__root__' );
 
 		/** @var string $name */