Added arrow function support to findEndOfStatement (ref #2523)

Author: gsherwood

src/Files/File.php

@@ -2354,7 +2354,10 @@ public function findEndOfStatement($start, $ignore=null)
                 && ($i === $this->tokens[$i]['scope_opener']
                 || $i === $this->tokens[$i]['scope_condition'])
             ) {
-                if ($i === $start && isset(Util\Tokens::$scopeOpeners[$this->tokens[$i]['code']]) === true) {
+                if ($i === $start
+                    && (isset(Util\Tokens::$scopeOpeners[$this->tokens[$i]['code']]) === true
+                    || $this->tokens[$i]['code'] === T_FN)
+                ) {
                     return $this->tokens[$i]['scope_closer'];
                 }
 
@@ -2372,7 +2375,7 @@ public function findEndOfStatement($start, $ignore=null)
                 if ($end !== false) {
                     $i = $end;
                 }
-            }
+            }//end if
 
             if (isset(Util\Tokens::$emptyTokens[$this->tokens[$i]['code']]) === false) {
                 $lastNotEmpty = $i;

tests/Core/File/FindEndOfStatementTest.inc

@@ -29,3 +29,9 @@ $a = new Datetime;
 
 /* testUseGroup */
 use Vendor\Package\{ClassA as A, ClassB, ClassC as C};
+
+$a = [
+    /* testArrowFunctionArrayValue */
+    'a' => fn() => return 1,
+    'b' => fn() => return 1,
+];

tests/Core/File/FindEndOfStatementTest.php

@@ -172,4 +172,20 @@ public function testUseGroup()
     }//end testUseGroup()
 
 
+    /**
+     * Test a use group.
+     *
+     * @return void
+     */
+    public function testArrowFunctionArrayValue()
+    {
+        $start = (self::$phpcsFile->findNext(T_COMMENT, 0, null, false, '/* testArrowFunctionArrayValue */') + 7);
+        $found = self::$phpcsFile->findEndOfStatement($start);
+
+        $tokens = self::$phpcsFile->getTokens();
+        $this->assertSame($tokens[($start + 9)], $tokens[$found]);
+
+    }//end testArrowFunctionArrayValue()
+
+
 }//end class

tests/Core/Tokenizer/BackfillFnTokenTest.inc

@@ -46,3 +46,8 @@ fn&($x) => $x;
 
 /* testGrouped */
 (fn($x) => $x) + $y;
+
+/* testArrayValue */
+$a = [
+    'a' => fn() => return 1,
+];

tests/Core/Tokenizer/BackfillFnTokenTest.php

@@ -375,6 +375,34 @@ public function testGrouped()
     }//end testGrouped()
 
 
+    /**
+     * Test arrow functions that are used as array values.
+     *
+     * @covers PHP_CodeSniffer\Tokenizers\PHP::processAdditional
+     *
+     * @return void
+     */
+    public function testArrayValue()
+    {
+        $tokens = self::$phpcsFile->getTokens();
+
+        $token = $this->getTargetToken('/* testArrayValue */', T_FN);
+        $this->backfillHelper($token);
+
+        $this->assertSame($tokens[$token]['scope_opener'], ($token + 4), 'Scope opener is not the arrow token');
+        $this->assertSame($tokens[$token]['scope_closer'], ($token + 9), 'Scope closer is not the comma token');
+
+        $opener = $tokens[$token]['scope_opener'];
+        $this->assertSame($tokens[$opener]['scope_opener'], ($token + 4), 'Opener scope opener is not the arrow token');
+        $this->assertSame($tokens[$opener]['scope_closer'], ($token + 9), 'Opener scope closer is not the comma token');
+
+        $closer = $tokens[$token]['scope_opener'];
+        $this->assertSame($tokens[$closer]['scope_opener'], ($token + 4), 'Closer scope opener is not the arrow token');
+        $this->assertSame($tokens[$closer]['scope_closer'], ($token + 9), 'Closer scope closer is not the comma token');
+
+    }//end testArrayValue()
+
+
     /**
      * Test that anonymous class tokens without parenthesis do not get assigned a parenthesis owner.
      *