Add hasAssignmentToken

Author: sirbrillig

VariableAnalysis/Lib/Helpers.php

@@ -382,6 +382,23 @@ public static function findFunctionCallArguments(File $phpcsFile, $stackPtr)
 		return $argPtrs;
 	}
 
+	/**
+	 * Compatibility handler for phpcs 3.x/4.x
+	 * @param array $tokens
+	 * @param int $tokenIndex
+	 * @return bool
+	 */
+	private static function hasAssignmentToken($tokens, $tokenIndex)
+	{
+		if (isset(Tokens::ASSIGNMENT_TOKENS[$tokens[$tokenIndex]['code']])) {
+			return true;
+		}
+		if (isset(Tokens::$assignmentTokens[$tokens[$tokenIndex]['code']])) {
+			return true;
+		}
+		return false;
+	}
+
 	/**
 	 * @param File $phpcsFile
 	 * @param int  $stackPtr
@@ -395,7 +412,7 @@ public static function getNextAssignPointer(File $phpcsFile, $stackPtr)
 		// Is the next non-whitespace an assignment?
 		$nextPtr = $phpcsFile->findNext(Tokens::$emptyTokens, $stackPtr + 1, null, true, null, true);
 		if (is_int($nextPtr)
-			&& isset(Tokens::$assignmentTokens[$tokens[$nextPtr]['code']])
+			&& self::hasAssignmentToken($tokens, $nextPtr)
 			// Ignore double arrow to prevent triggering on `foreach ( $array as $k => $v )`.
 			&& $tokens[$nextPtr]['code'] !== T_DOUBLE_ARROW
 		) {