Upgrade PHPStan

- Allow throw exceptions for invalid return types

Author: natanfelles

composer.json

@@ -46,7 +46,7 @@
         "ergebnis/composer-normalize": "^2.25",
         "jetbrains/phpstorm-attributes": "^1.0",
         "phpmd/phpmd": "^2.12",
-        "phpstan/phpstan": "^1.5",
+        "phpstan/phpstan": "^1.7",
         "phpunit/phpunit": "^9.5"
     },
     "minimum-stability": "dev",

src/Language.php

@@ -134,6 +134,7 @@ public function addLines(string $locale, string $file, array $lines) : static
      */
     public function currency(float $value, string $currency, string $locale = null) : string
     {
+        // @phpstan-ignore-next-line
         return \NumberFormatter::create(
             $locale ?? $this->getCurrentLocale(),
             \NumberFormatter::CURRENCY
@@ -157,7 +158,8 @@ public function date(int $time, string $style = null, string $locale = null) : s
             throw new InvalidArgumentException('Invalid date style format: ' . $style);
         }
         $style = $style ?: 'short';
-        return (string) \MessageFormatter::formatMessage(
+        // @phpstan-ignore-next-line
+        return \MessageFormatter::formatMessage(
             $locale ?? $this->getCurrentLocale(),
             "{time, date, {$style}}",
             ['time' => $time]
@@ -394,7 +396,8 @@ public function lang(string $line, array $args = [], string $locale = null) : ?s
      */
     public function ordinal(int $number, string $locale = null) : string
     {
-        return (string) \MessageFormatter::formatMessage(
+        // @phpstan-ignore-next-line
+        return \MessageFormatter::formatMessage(
             $locale ?? $this->getCurrentLocale(),
             '{number, ordinal}',
             ['number' => $number]