Fix missing phpdoc and configure phpstan

.github/workflows/run-tests.yml

@@ -99,7 +99,7 @@ jobs:
         run: vendor/bin/phpunit --no-coverage
 
       - name: Run analyzer
-        run: vendor/bin/phpstan analyze --level=4 ./src
+        run: vendor/bin/phpstan
 
       - name: Validate coding standards
         run: vendor/bin/phpcs

phpstan.dist.neon

@@ -0,0 +1,20 @@
+parameters:
+    level: 4
+    paths:
+        - src
+    exceptions:
+        check:
+            missingCheckedExceptionInThrows: true
+        uncheckedExceptionClasses:
+            - Intervention\Image\Exceptions\AnimationException
+            - Intervention\Image\Exceptions\ColorException
+            - Intervention\Image\Exceptions\DriverException
+            - Intervention\Image\Exceptions\GeometryException
+            - Intervention\Image\Exceptions\FontException
+            - Intervention\Image\Exceptions\InputException
+            - Intervention\Image\Exceptions\NotSupportedException
+            - Intervention\Image\Exceptions\NotWritableException
+            - ImagickException
+            - ImagickDrawException
+            - ImagickPixelException
+            - Error

src/Collection.php

@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace Intervention\Image;
 
-use Intervention\Image\Exceptions\RuntimeException;
 use Intervention\Image\Interfaces\CollectionInterface;
 use ArrayIterator;
 use Countable;
@@ -198,10 +197,6 @@ class Collection implements CollectionInterface, IteratorAggregate, Countable
      */
     public function slice(int $offset, ?int $length = null): CollectionInterface
     {
-        if ($offset >= count($this->items)) {
-            throw new RuntimeException('Offset exceeds the maximum value.');
-        }
-
         $this->items = array_slice($this->items, $offset, $length);
 
         return $this;

src/Drivers/AbstractDrawModifier.php

@@ -20,6 +20,9 @@ abstract class AbstractDrawModifier extends DriverSpecialized implements Modifie
         return $this->drawable->position();
     }
 
+    /**
+     * @throws DecoderException
+     */
     public function backgroundColor(): ColorInterface
     {
         try {
@@ -31,6 +34,9 @@ abstract class AbstractDrawModifier extends DriverSpecialized implements Modifie
         return $color;
     }
 
+    /**
+     * @throws DecoderException
+     */
     public function borderColor(): ColorInterface
     {
         try {

src/Drivers/Gd/Driver.php

@@ -6,7 +6,7 @@ namespace Intervention\Image\Drivers\Gd;
 
 use Intervention\Image\Drivers\AbstractDriver;
 use Intervention\Image\Exceptions\DecoderException;
-use Intervention\Image\Exceptions\RuntimeException;
+use Intervention\Image\Exceptions\DriverException;
 use Intervention\Image\Image;
 use Intervention\Image\Interfaces\ColorInterface;
 use Intervention\Image\Interfaces\ColorProcessorInterface;
@@ -36,7 +36,7 @@ class Driver extends AbstractDriver
     public function checkHealth(): void
     {
         if (!extension_loaded('gd') || !function_exists('gd_info')) {
-            throw new RuntimeException(
+            throw new DriverException(
                 'GD PHP extension must be installed to use this driver.'
             );
         }

src/Drivers/Gd/Encoders/GifEncoder.php

@@ -43,7 +43,11 @@ class GifEncoder extends DriverSpecializedEncoder
             );
         }
 
+        try {
             $builder->setLoops($image->loops());
+        } catch (\Exception $e) {
+            throw new EncoderException($e->getMessage(), $e->getCode(), $e);
+        }
 
         return new EncodedImage($builder->encode(), 'image/gif');
     }

src/Drivers/Imagick/Core.php

@@ -9,7 +9,6 @@ use ImagickException;
 use Iterator;
 use Intervention\Image\Interfaces\CoreInterface;
 use Intervention\Image\Exceptions\AnimationException;
-use Intervention\Image\Exceptions\RuntimeException;
 use Intervention\Image\Interfaces\CollectionInterface;
 use Intervention\Image\Interfaces\FrameInterface;
 
@@ -98,10 +97,6 @@ class Core implements CoreInterface, Iterator
      */
     public function slice(int $offset, ?int $length = null): CollectionInterface
     {
-        if ($offset >= $this->count()) {
-            throw new RuntimeException('Offset exceeds the maximum value.');
-        }
-
         $allowed_indexes = [];
         $length = is_null($length) ? $this->count() : $length;
         for ($i = $offset; $i < $offset + $length; $i++) {

src/Drivers/Imagick/Driver.php

@@ -8,7 +8,7 @@ use Imagick;
 use ImagickPixel;
 use Intervention\Image\Drivers\AbstractDriver;
 use Intervention\Image\Exceptions\DecoderException;
-use Intervention\Image\Exceptions\RuntimeException;
+use Intervention\Image\Exceptions\DriverException;
 use Intervention\Image\Image;
 use Intervention\Image\Interfaces\ColorInterface;
 use Intervention\Image\Interfaces\ColorProcessorInterface;
@@ -38,7 +38,7 @@ class Driver extends AbstractDriver
     public function checkHealth(): void
     {
         if (!extension_loaded('imagick') || !class_exists('Imagick')) {
-            throw new RuntimeException(
+            throw new DriverException(
                 'Imagick PHP extension must be installed to use this driver.'
             );
         }

src/Exceptions/DriverException.php

@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Intervention\Image\Exceptions;
+
+class DriverException extends RuntimeException
+{
+}

src/Interfaces/DriverInterface.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace Intervention\Image\Interfaces;
 
 use Intervention\Image\Exceptions\DecoderException;
+use Intervention\Image\Exceptions\DriverException;
 use Intervention\Image\Exceptions\RuntimeException;
 
 interface DriverInterface
@@ -78,7 +79,7 @@ interface DriverInterface
      * Check whether all requirements for operating the driver are met and
      * throw exception if the check fails.
      *
-     * @throws RuntimeException
+     * @throws DriverException
      * @return void
      */
     public function checkHealth(): void;