Merge pull request #8476 from nextcloud/strict_l10n

Make OCP\IL10N strict

4 files changed, 32 insertions, 30 deletions

diff --git a/core/templates/installation.php b/core/templates/installation.php
index 0d274f0f881..616ca1f47da 100644
--- a/core/templates/installation.php
+++ b/core/templates/installation.php
@@ -31,7 +31,7 @@ script('core', [
 		<p><?php p($l->t('Your data directory and files are probably accessible from the internet because the .htaccess file does not work.'));?><br>
 		<?php print_unescaped($l->t(
 			'For information how to properly configure your server, please see the <a href="%s" target="_blank" rel="noreferrer noopener">documentation</a>.',
-			link_to_docs('admin-install')
+			[link_to_docs('admin-install')]
 		)); ?></p>
 	</fieldset>
 	<?php endif; ?>
diff --git a/lib/private/App/DependencyAnalyzer.php b/lib/private/App/DependencyAnalyzer.php
index 4193ee5083f..e8da5a0b63a 100644
--- a/lib/private/App/DependencyAnalyzer.php
+++ b/lib/private/App/DependencyAnalyzer.php
@@ -140,19 +140,19 @@ class DependencyAnalyzer {
 		if (isset($dependencies['php']['@attributes']['min-version'])) {
 			$minVersion = $dependencies['php']['@attributes']['min-version'];
 			if ($this->compareSmaller($this->platform->getPhpVersion(), $minVersion)) {
-				$missing[] = (string)$this->l->t('PHP %s or higher is required.', $minVersion);
+				$missing[] = (string)$this->l->t('PHP %s or higher is required.', [$minVersion]);
 			}
 		}
 		if (isset($dependencies['php']['@attributes']['max-version'])) {
 			$maxVersion = $dependencies['php']['@attributes']['max-version'];
 			if ($this->compareBigger($this->platform->getPhpVersion(), $maxVersion)) {
-				$missing[] = (string)$this->l->t('PHP with a version lower than %s is required.', $maxVersion);
+				$missing[] = (string)$this->l->t('PHP with a version lower than %s is required.', [$maxVersion]);
 			}
 		}
 		if (isset($dependencies['php']['@attributes']['min-int-size'])) {
 			$intSize = $dependencies['php']['@attributes']['min-int-size'];
 			if ($intSize > $this->platform->getIntSize()*8) {
-				$missing[] = (string)$this->l->t('%sbit or higher PHP required.', $intSize);
+				$missing[] = (string)$this->l->t('%sbit or higher PHP required.', [$intSize]);
 			}
 		}
 		return $missing;
@@ -209,7 +209,7 @@ class DependencyAnalyzer {
 			}
 			$commandName = $this->getValue($command);
 			if (!$this->platform->isCommandKnown($commandName)) {
-				$missing[] = (string)$this->l->t('The command line tool %s could not be found', $commandName);
+				$missing[] = (string)$this->l->t('The command line tool %s could not be found', [$commandName]);
 			}
 		}
 		return $missing;
@@ -236,7 +236,7 @@ class DependencyAnalyzer {
 			$libName = $this->getValue($lib);
 			$libVersion = $this->platform->getLibraryVersion($libName);
 			if (is_null($libVersion)) {
-				$missing[] = (string)$this->l->t('The library %s is not available.', $libName);
+				$missing[] = (string)$this->l->t('The library %s is not available.', [$libName]);
 				continue;
 			}
 
diff --git a/lib/private/L10N/L10N.php b/lib/private/L10N/L10N.php
index e9e720a3766..f0e37ca1a5d 100644
--- a/lib/private/L10N/L10N.php
+++ b/lib/private/L10N/L10N.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 /**
  * @copyright Copyright (c) 2016, ownCloud, Inc.
  *
@@ -60,7 +61,6 @@ class L10N implements IL10N {
 		$this->app = $app;
 		$this->lang = $lang;
 
-		$this->translations = [];
 		foreach ($files as $languageFile) {
 			$this->load($languageFile);
 		}
@@ -71,7 +71,7 @@ class L10N implements IL10N {
 	 *
 	 * @return string language
 	 */
-	public function getLanguageCode() {
+	public function getLanguageCode(): string {
 		return $this->lang;
 	}
 
@@ -84,7 +84,7 @@ class L10N implements IL10N {
 	 * Returns the translation. If no translation is found, $text will be
 	 * returned.
 	 */
-	public function t($text, $parameters = array()) {
+	public function t(string $text, array $parameters = []): string {
 		return (string) new L10NString($this, $text, $parameters);
 	}
 
@@ -103,17 +103,17 @@ class L10N implements IL10N {
 	 * provided by the po file.
 	 *
 	 */
-	public function n($text_singular, $text_plural, $count, $parameters = array()) {
+	public function n(string $text_singular, string $text_plural, int $count, array $parameters = []): string {
 		$identifier = "_${text_singular}_::_${text_plural}_";
 		if (isset($this->translations[$identifier])) {
 			return (string) new L10NString($this, $identifier, $parameters, $count);
-		} else {
-			if ($count === 1) {
-				return (string) new L10NString($this, $text_singular, $parameters, $count);
-			} else {
-				return (string) new L10NString($this, $text_plural, $parameters, $count);
-			}
 		}
+
+		if ($count === 1) {
+			return (string) new L10NString($this, $text_singular, $parameters, $count);
+		}
+
+		return (string) new L10NString($this, $text_plural, $parameters, $count);
 	}
 
 	/**
@@ -138,7 +138,7 @@ class L10N implements IL10N {
 	 *  - firstday: Returns the first day of the week (0 sunday - 6 saturday)
 	 *  - jsdate: Returns the short JS date format
 	 */
-	public function l($type, $data = null, $options = array()) {
+	public function l(string $type, $data = null, array $options = []) {
 		// Use the language of the instance
 		$locale = $this->getLanguageCode();
 		if ($locale === 'sr@latin') {
@@ -155,14 +155,15 @@ class L10N implements IL10N {
 		$value = new \DateTime();
 		if ($data instanceof \DateTime) {
 			$value = $data;
-		} else if (is_string($data) && !is_numeric($data)) {
+		} else if (\is_string($data) && !is_numeric($data)) {
 			$data = strtotime($data);
 			$value->setTimestamp($data);
 		} else if ($data !== null) {
+			$data = (int)$data;
 			$value->setTimestamp($data);
 		}
 
-		$options = array_merge(array('width' => 'long'), $options);
+		$options = array_merge(['width' => 'long'], $options);
 		$width = $options['width'];
 		switch ($type) {
 			case 'date':
@@ -184,7 +185,7 @@ class L10N implements IL10N {
 	 * Called by \OC_L10N_String
 	 * @return array
 	 */
-	public function getTranslations() {
+	public function getTranslations(): array {
 		return $this->translations;
 	}
 
@@ -192,10 +193,10 @@ class L10N implements IL10N {
 	 * Returnsed function accepts the argument $n
 	 *
 	 * Called by \OC_L10N_String
-	 * @return string the plural form function
+	 * @return \Closure the plural form function
 	 */
-	public function getPluralFormFunction() {
-		if (is_null($this->pluralFormFunction)) {
+	public function getPluralFormFunction(): \Closure {
+		if (\is_null($this->pluralFormFunction)) {
 			$lang = $this->getLanguageCode();
 			$this->pluralFormFunction = function($n) use ($lang) {
 				return PluralizationRules::get($n, $lang);
@@ -206,12 +207,12 @@ class L10N implements IL10N {
 	}
 
 	/**
-	 * @param $translationFile
+	 * @param string $translationFile
 	 * @return bool
 	 */
-	protected function load($translationFile) {
+	protected function load(string $translationFile): bool {
 		$json = json_decode(file_get_contents($translationFile), true);
-		if (!is_array($json)) {
+		if (!\is_array($json)) {
 			$jsonError = json_last_error();
 			\OC::$server->getLogger()->warning("Failed to load $translationFile - json error code: $jsonError", ['app' => 'l10n']);
 			return false;
diff --git a/lib/public/IL10N.php b/lib/public/IL10N.php
index 7af5008b814..158e0cb156c 100644
--- a/lib/public/IL10N.php
+++ b/lib/public/IL10N.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 /**
  * @copyright Copyright (c) 2016, ownCloud, Inc.
  *
@@ -51,7 +52,7 @@ interface IL10N {
 	 * returned.
 	 * @since 6.0.0
 	 */
-	public function t($text, $parameters = array());
+	public function t(string $text, array $parameters = []): string;
 
 	/**
 	 * Translating
@@ -69,7 +70,7 @@ interface IL10N {
 	 * @since 6.0.0
 	 *
 	 */
-	public function n($text_singular, $text_plural, $count, $parameters = array());
+	public function n(string $text_singular, string $text_plural, int $count, array $parameters = []): string;
 
 	/**
 	 * Localization
@@ -96,7 +97,7 @@ interface IL10N {
 	 *    - params: timestamp (int/string)
 	 * @since 6.0.0 - parameter $options was added in 8.0.0
 	 */
-	public function l($type, $data, $options = array());
+	public function l(string $type, $data, array $options = []);
 
 
 	/**
@@ -105,5 +106,5 @@ interface IL10N {
 	 * @return string language
 	 * @since 7.0.0
 	 */
-	public function getLanguageCode();
+	public function getLanguageCode(): string ;
 }