Fixed bug squizlabs#2673 : PSR12.Traits.UseDeclaration does not allow comments or blank lines between use statements

Author: gsherwood

package.xml

@@ -40,6 +40,7 @@ http://pear.php.net/dtd/package-2.0.xsd">
   - Fixed bug #2663 : Generic.NamingConventions.ConstructorName complains about old constructor in interfaces
   - Fixed bug #2664 : PSR12.Files.OpenTag incorrectly identifies PHP file with only an opening tag
   - Fixed bug #2665 : PSR12.Files.ImportStatement should not apply to traits
+  - Fixed bug #2673 : PSR12.Traits.UseDeclaration does not allow comments or blank lines between use statements
  </notes>
  <contents>
   <dir name="/">

src/Standards/PSR12/Sniffs/Traits/UseDeclarationSniff.php

@@ -135,10 +135,10 @@ public function process(File $phpcsFile, $stackPtr)
                 }//end if
             }//end if
         } else {
-            // Make sure this use statement immediately follows the previous one.
+            // Make sure this use statement is not on the same line as the previous one.
             $prev = $phpcsFile->findPrevious(Tokens::$emptyTokens, ($stackPtr - 1), null, true);
-            if ($prev !== false && $tokens[$prev]['line'] !== ($tokens[$stackPtr]['line'] - 1)) {
-                $error     = 'Each imported trait must be on the line after the previous import';
+            if ($prev !== false && $tokens[$prev]['line'] === $tokens[$stackPtr]['line']) {
+                $error     = 'Each imported trait must be on it\'s own line';
                 $prevNonWs = $phpcsFile->findPrevious(T_WHITESPACE, ($stackPtr - 1), null, true);
                 if ($prevNonWs !== $prev) {
                     $phpcsFile->addError($error, $stackPtr, 'SpacingBeforeImport');

src/Standards/PSR12/Tests/Traits/UseDeclarationUnitTest.inc

@@ -131,3 +131,21 @@ class Foo implements Bar
 
     use Baz;
 }
+
+class ClassName
+{
+    /**
+     * DocBlockContent
+     */
+    use FirstTrait;
+
+    /**
+     * DocBlockContent
+     */
+    use SecondTrait;
+
+    /**
+     * DocBlockContent
+     */
+    use ThirdTrait;
+}

src/Standards/PSR12/Tests/Traits/UseDeclarationUnitTest.inc.fixed

@@ -77,7 +77,9 @@ class ClassName9
 class ClassName10
 {
     use TransactionTrait;
+
     use PermissionAwareTrait;
+
     use FirstTrait;
     use SecondTrait;
     use ThirdTrait;
@@ -124,3 +126,21 @@ class Foo implements Bar
 
     use Baz;
 }
+
+class ClassName
+{
+    /**
+     * DocBlockContent
+     */
+    use FirstTrait;
+
+    /**
+     * DocBlockContent
+     */
+    use SecondTrait;
+
+    /**
+     * DocBlockContent
+     */
+    use ThirdTrait;
+}

src/Standards/PSR12/Tests/Traits/UseDeclarationUnitTest.php

@@ -38,8 +38,7 @@ public function getErrorList()
             71  => 1,
             73  => 2,
             76  => 1,
-            84  => 1,
-            86  => 3,
+            86  => 2,
             103 => 1,
             112 => 1,
             122 => 1,