TASK: Migrate MissingNamespaceSniff

* Make MissingNamespaceSniff work again.
* Move to old namespace as it's a custom sniff, not a general one.
* Do not use new feature here, implement logic internal.
* Remove message from ruleset, use it directly.

Relates: #72

src/Standards/Typo3Update/Configuration/Features/LegacyClassnames.yaml

@@ -6,10 +6,10 @@ Typo3Update\Feature\LegacyClassnameFeature:
   - Typo3Update_Sniffs_Classname_InstantiationWithNewSniff
   - Typo3Update_Sniffs_Classname_InstantiationWithObjectManagerSniff
   - Typo3Update_Sniffs_Classname_IsACallSniff
-  - Typo3Update_Sniffs_Classname_MissingNamespaceSniff
   - Typo3Update_Sniffs_Classname_MissingVendorForPluginsAndModulesSniff
   - Typo3Update_Sniffs_Classname_PhpDocCommentSniff
   - Typo3Update_Sniffs_Classname_StaticCallSniff
   - Typo3Update_Sniffs_Classname_TypeHintCatchExceptionSniff
   - Typo3Update_Sniffs_Classname_TypeHintSniff
   - Typo3Update_Sniffs_Classname_UseSniff
+  - Typo3Update_Sniffs_LegacyClassname_MissingNamespaceSniff

src/Standards/Typo3Update/Sniffs/LegacyClassname/MissingNamespaceSniff.php

@@ -20,13 +20,14 @@
  */
 
 use PHP_CodeSniffer_File as PhpCsFile;
-use Typo3Update\Sniffs\Classname\AbstractClassnameChecker;
+use PHP_CodeSniffer_Sniff as PhpCsSniff;
+use Typo3Update\Feature\LegacyClassnameMapping;
 use Typo3Update\Options;
 
 /**
  * Detect missing namespaces for class definitions.
  */
-class Typo3Update_Sniffs_Classname_MissingNamespaceSniff extends AbstractClassnameChecker
+class Typo3Update_Sniffs_LegacyClassname_MissingNamespaceSniff implements PhpCsSniff
 {
     /**
      * Returns the token types that this sniff is interested in.
@@ -66,28 +67,16 @@ class Typo3Update_Sniffs_Classname_MissingNamespaceSniff extends AbstractClassna
         }
 
         $classname = $tokens[$classnamePosition]['content'];
-        // TODO: Migrate class, use custom feature as some parts are different!
-        // $this->addFixableError($phpcsFile, $classnamePosition, $classname);
-    }
-
-    /**
-     * Overwrite as we don't look up the classname, but check whether the style is legacy.
-     *
-     * @param string $classname
-     * @return bool
-     */
-    protected function isLegacyClassname($classname)
-    {
-        return strpos($classname, 'Tx_') === 0;
-    }
-
-    /**
-     * @param string $classname
-     * @return string
-     */
-    protected function getNewClassname($classname)
-    {
-        return substr($classname, strrpos($classname, '_') + 1);
+        $fix = $phpcsFile->addFixableError(
+            'Legacy class definitions are not allowed; found "%s".'
+                . ' Wrap your class inside a namespace.',
+            $classnamePosition,
+            'legacyClassname',
+            [$classname]
+        );
+        if ($fix === true) {
+            $this->replaceLegacyClassname($phpcsFile, $classnamePosition, $classname);
+        }
     }
 
     /**
@@ -95,18 +84,12 @@ class Typo3Update_Sniffs_Classname_MissingNamespaceSniff extends AbstractClassna
      * @param PhpCsFile $phpcsFile
      * @param int $classnamePosition
      * @param string $classname
-     * @param bool $forceEmptyPrefix Defines whether '\\' prefix should be checked or always be left out.
-     *
-     * @SuppressWarnings(PHPMD.BooleanArgumentFlag)
      */
     protected function replaceLegacyClassname(
         PhpCsFile $phpcsFile,
         $classnamePosition,
-        $classname,
-        $forceEmptyPrefix = true
+        $classname
     ) {
-        parent::replaceLegacyClassname($phpcsFile, $classnamePosition, $classname, $forceEmptyPrefix);
-
         $tokens = $phpcsFile->getTokens();
         $lineEndings = PhpCsFile::detectLineEndings($phpcsFile->getFilename());
         $suffix = $lineEndings;
@@ -115,16 +98,29 @@ class Typo3Update_Sniffs_Classname_MissingNamespaceSniff extends AbstractClassna
             $suffix .= $lineEndings;
         }
 
+        $phpcsFile->fixer->replaceToken(
+            $classnamePosition,
+            substr($classname, strrpos($classname, '_') + 1)
+        );
         $phpcsFile->fixer->replaceToken(
             $this->getNamespacePosition($phpcsFile),
             '<?php' . $lineEndings . $this->getNamespaceDefinition($classname) . $suffix
         );
-        $this->addLegacyClassname(
+        LegacyClassnameMapping::getInstance()->addLegacyClassname(
             $classname,
             $this->getNamespace($classname) . '\\' . $this->getNewClassname($classname)
         );
     }
 
+    /**
+     * @param string $classname
+     * @return string
+     */
+    protected function getNewClassname($classname)
+    {
+        return substr($classname, strrpos($classname, '_') + 1);
+    }
+
     /**
      * @param PhpCsFile $phpcsFile
      * @return int|false

src/Standards/Typo3Update/ruleset.xml

@@ -12,8 +12,4 @@
             <property name="allowedTags" type="array" value="@param,@return,@var,@see,@throws"/>
         </properties>
     </rule>
-
-    <rule ref="Typo3Update.Classname.MissingNamespace.legacyClassname">
-        <message>Legacy class definitions are not allowed; found "%s". Wrap your class inside a namespace.</message>
-    </rule>
 </ruleset>

tests/Fixtures/Standards/Typo3Update/Sniffs/LegacyClassname/MissingNamespaceSniff/customVendor/Expected.diff

@@ -1,4 +1,4 @@
---- tests/Fixtures/Standards/Typo3Update/Sniffs/Classname/MissingNamespaceSniff/customVendor/InputFileForIssues.php
+--- tests/Fixtures/Standards/Typo3Update/Sniffs/LegacyClassname/MissingNamespaceSniff/customVendor/InputFileForIssues.php
 +++ PHP_CodeSniffer
 @@ -1,4 +1,5 @@
  <?php

tests/Fixtures/Standards/Typo3Update/Sniffs/LegacyClassname/MissingNamespaceSniff/customVendor/Expected.json

@@ -9,7 +9,7 @@
                     "line": 24,
                     "message": "Legacy class definitions are not allowed; found \"Tx_ExtName_Controller_Frontendcontroller\". Wrap your class inside a namespace.",
                     "severity": 5,
-                    "source": "Typo3Update.Classname.MissingNamespace.legacyClassname",
+                    "source": "Typo3Update.LegacyClassname.MissingNamespace.legacyClassname",
                     "type": "ERROR"
                 }
             ],

tests/Fixtures/Standards/Typo3Update/Sniffs/LegacyClassname/MissingNamespaceSniff/defaultVendor/Expected.diff

@@ -1,4 +1,4 @@
---- tests/Fixtures/Standards/Typo3Update/Sniffs/Classname/MissingNamespaceSniff/defaultVendor/InputFileForIssues.php
+--- tests/Fixtures/Standards/Typo3Update/Sniffs/LegacyClassname/MissingNamespaceSniff/defaultVendor/InputFileForIssues.php
 +++ PHP_CodeSniffer
 @@ -1,4 +1,5 @@
  <?php

tests/Fixtures/Standards/Typo3Update/Sniffs/LegacyClassname/MissingNamespaceSniff/defaultVendor/Expected.json

@@ -9,7 +9,7 @@
                     "line": 24,
                     "message": "Legacy class definitions are not allowed; found \"Tx_ExtName_Controller_Frontendcontroller\". Wrap your class inside a namespace.",
                     "severity": 5,
-                    "source": "Typo3Update.Classname.MissingNamespace.legacyClassname",
+                    "source": "Typo3Update.LegacyClassname.MissingNamespace.legacyClassname",
                     "type": "ERROR"
                 }
             ],