PSR12.Traits.UseDeclaration: check spacing after use keyword for multi-line statements

While the `processUseStatement()` method checking single-line trait `use` statements would check the spacing after the `use` keyword, the `processUseGroup()` method checking multi-line trait `use` statements did not execute that same check, while the rule applies to both single- as well as multi-line `use` statements.

By moving the check for the spacing after the `use` keyword to the `process()` method, it will now be executed for both situations.

Tested by adjusting a pre-existing test.

Author: jrfnl

CHANGELOG.md

@@ -167,6 +167,8 @@ The file documents changes to the PHP_CodeSniffer project.
 - Fixed bug #3856 : PSR12.Traits.UseDeclaration was using the wrong error code - SpacingAfterAs - for spacing issues after the use keyword
     - These will now be reported using the SpacingAfterUse error code.
     - Thanks to Juliette Reinders Folmer (@jrfnl) for the patch
+- Fixed bug #3856 : PSR12.Traits.UseDeclaration did not check spacing after use keyword for multi-line trait use statements
+    - Thanks to Juliette Reinders Folmer (@jrfnl) for the patch
 - Fixed bug #3867 : Tokenizer/PHP: union type and intersection type operators were not correctly tokenized for static properties without explicit visibility
     - Thanks to Juliette Reinders Folmer (@jrfnl) for the patch
 - Fixed bug #3877 : Filter names can be case-sensitive. The -h help text will now display the correct case for the available filters

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

@@ -177,6 +177,38 @@ public function process(File $phpcsFile, $stackPtr)
                 }//end if
             }//end if
 
+            $error = 'Expected 1 space after USE in trait import statement; %s found';
+            if ($tokens[($useToken + 1)]['code'] !== T_WHITESPACE) {
+                $data = ['0'];
+                $fix  = $phpcsFile->addFixableError($error, $useToken, 'SpaceAfterUse', $data);
+                if ($fix === true) {
+                    $phpcsFile->fixer->addContent($useToken, ' ');
+                }
+            } else if ($tokens[($useToken + 1)]['content'] !== ' ') {
+                $next = $phpcsFile->findNext(T_WHITESPACE, ($useToken + 1), null, true);
+                if ($tokens[$next]['line'] !== $tokens[$useToken]['line']) {
+                    $found = 'newline';
+                } else {
+                    $found = $tokens[($useToken + 1)]['length'];
+                }
+
+                $data = [$found];
+                $fix  = $phpcsFile->addFixableError($error, $useToken, 'SpaceAfterUse', $data);
+                if ($fix === true) {
+                    if ($found === 'newline') {
+                        $phpcsFile->fixer->beginChangeset();
+                        for ($x = ($useToken + 1); $x < $next; $x++) {
+                            $phpcsFile->fixer->replaceToken($x, '');
+                        }
+
+                        $phpcsFile->fixer->addContent($useToken, ' ');
+                        $phpcsFile->fixer->endChangeset();
+                    } else {
+                        $phpcsFile->fixer->replaceToken(($useToken + 1), ' ');
+                    }
+                }
+            }//end if
+
             // Check the formatting of the statement.
             if (isset($tokens[$useToken]['scope_opener']) === true) {
                 $this->processUseGroup($phpcsFile, $useToken);
@@ -652,38 +684,6 @@ protected function processUseStatement(File $phpcsFile, $stackPtr)
     {
         $tokens = $phpcsFile->getTokens();
 
-        $error = 'Expected 1 space after USE in trait import statement; %s found';
-        if ($tokens[($stackPtr + 1)]['code'] !== T_WHITESPACE) {
-            $data = ['0'];
-            $fix  = $phpcsFile->addFixableError($error, $stackPtr, 'SpaceAfterUse', $data);
-            if ($fix === true) {
-                $phpcsFile->fixer->addContent($stackPtr, ' ');
-            }
-        } else if ($tokens[($stackPtr + 1)]['content'] !== ' ') {
-            $next = $phpcsFile->findNext(T_WHITESPACE, ($stackPtr + 1), null, true);
-            if ($tokens[$next]['line'] !== $tokens[$stackPtr]['line']) {
-                $found = 'newline';
-            } else {
-                $found = $tokens[($stackPtr + 1)]['length'];
-            }
-
-            $data = [$found];
-            $fix  = $phpcsFile->addFixableError($error, $stackPtr, 'SpaceAfterUse', $data);
-            if ($fix === true) {
-                if ($found === 'newline') {
-                    $phpcsFile->fixer->beginChangeset();
-                    for ($x = ($stackPtr + 1); $x < $next; $x++) {
-                        $phpcsFile->fixer->replaceToken($x, '');
-                    }
-
-                    $phpcsFile->fixer->addContent($stackPtr, ' ');
-                    $phpcsFile->fixer->endChangeset();
-                } else {
-                    $phpcsFile->fixer->replaceToken(($stackPtr + 1), ' ');
-                }
-            }
-        }//end if
-
         $next = $phpcsFile->findNext([T_COMMA, T_SEMICOLON], ($stackPtr + 1));
         if ($next !== false && $tokens[$next]['code'] === T_COMMA) {
             $error = 'Each imported trait must have its own "use" import statement';

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

@@ -54,7 +54,7 @@ class ClassName7
 
 class ClassName8
 {
-    use A ,  B,
+    use   A ,  B,
     C
     {
 

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

@@ -30,7 +30,7 @@ public function getErrorList()
             29  => 2,
             30  => 1,
             42  => 1,
-            57  => 3,
+            57  => 4,
             59  => 3,
             61  => 1,
             63  => 5,