[+]: "PhpCodeParser" add "getFromClassName()" + tests

Author: voku

README.md

@@ -51,6 +51,24 @@ $phpClasses = $phpCode->getClasses();
 var_dump($phpClasses['voku\tests\SimpleClass']); // "PHPClass"-object
 ```
 
+Parse one class:
+```php
+$phpCode = \voku\SimplePhpParser\Parsers\PhpCodeParser::getFromClassName(Dummy::class);
+$phpClasses = $phpCode->getClasses();
+
+var_dump($phpClasses[Dummy::class]); // "PHPClass"-object
+
+var_dump($phpClasses[Dummy::class]->methods); // "PHPMethod[]"-objects
+
+var_dump($phpClasses[Dummy::class]->methods['withoutPhpDocParam']); // "PHPMethod"-object
+
+var_dump($phpClasses[Dummy::class]->methods['withoutPhpDocParam']->parameters); // "PHPParameter[]"-objects
+
+var_dump($phpClasses[Dummy::class]->methods['withoutPhpDocParam']->parameters['useRandInt']); // "PHPParameter"-object
+
+var_dump($phpClasses[Dummy::class]->methods['withoutPhpDocParam']->parameters['useRandInt']->type); // "bool"
+````
+
 Parse one file:
 ```php
 $phpCode = \voku\SimplePhpParser\Parsers\PhpCodeParser::getPhpFiles(__DIR__ . '/Dummy.php');

src/voku/SimplePhpParser/Parsers/PhpCodeParser.php

@@ -41,6 +41,28 @@ public static function getFromString(
         );
     }
 
+    /**
+     * @param string   $className
+     * @param string[] $autoloaderProjectPaths
+     *
+     * @pslam-param class-string $className
+     *
+     * @throws \Roave\BetterReflection\Reflector\Exception\IdentifierNotFound
+     *
+     * @return \voku\SimplePhpParser\Parsers\Helper\ParserContainer
+     */
+    public static function getFromClassName(
+        string $className,
+        array $autoloaderProjectPaths = []
+    ): ParserContainer {
+        $reflectionClass = ReflectionClass::createFromName($className);
+
+        return self::getPhpFiles(
+            (string)$reflectionClass->getFileName(),
+            $autoloaderProjectPaths
+        );
+    }
+
     /**
      * @param string   $pathOrCode
      * @param string[] $autoloaderProjectPaths

tests/ParserTest.php

@@ -167,6 +167,14 @@ class AnotherClass {}';
         static::assertCount(4, $phpClasses);
     }
 
+    public function testFromClassName(): void
+    {
+        $phpCode = PhpCodeParser::getFromClassName(Dummy::class);
+        $phpClasses = $phpCode->getClasses();
+
+        static::assertSame('array<int, int>', $phpClasses['voku\tests\Dummy']->methods['withReturnType']->returnTypeFromPhpDocPslam);
+    }
+
     public function testSimpleStringInputConstants(): void
     {
         $code = '<?php