Fix PHPStan

Author: dereuromark

PhpCollective/Sniffs/Classes/MethodArgumentDefaultValueSniff.php

@@ -88,12 +88,17 @@ protected function getLastNonDefaultArgumentIndex(File $phpcsFile, int $startInd
             $token = $tokens[$i];
 
             if ($this->isGivenKind(T_EQUAL, $token)) {
-                $i = $phpcsFile->findPrevious(T_VARIABLE, $i - 1) ?: null;
-                if (!$i) {
+                $result = $phpcsFile->findPrevious(T_VARIABLE, $i - 1);
+                if ($result === false) {
                     continue;
                 }
+                $i = $result;
 
-                $i = $phpcsFile->findPrevious(Tokens::$emptyTokens, $i, $startIndex - 1, true) ?: null;
+                $result = $phpcsFile->findPrevious(Tokens::$emptyTokens, $i, $startIndex - 1, true);
+                if ($result === false) {
+                    break;
+                }
+                $i = $result;
 
                 continue;
             }

PhpCollective/Sniffs/Commenting/DocBlockReturnNullableTypeSniff.php

@@ -235,6 +235,9 @@ protected function getDocBlockReturnTypeToken(File $phpcsFile, int $stackPointer
 
         $docBlockStartIndex = DocCommentHelper::findDocCommentOpenPointer($phpcsFile, $stackPointer);
         $docBlockEndIndex = $this->findRelatedDocBlock($phpcsFile, $stackPointer);
+        if (!$docBlockEndIndex) {
+            return [];
+        }
 
         for ($i = $docBlockEndIndex; $i >= $docBlockStartIndex; $i--) {
             if ($tokens[$i]['content'] !== '@return') {

PhpCollective/Sniffs/Namespaces/UseStatementSniff.php

@@ -1044,6 +1044,9 @@ protected function getUseStatements(File $phpcsFile): array
             }
 
             $useStatementStartIndex = $phpcsFile->findNext(Tokens::$emptyTokens, $index + 1, null, true);
+            if ($useStatementStartIndex === false) {
+                continue;
+            }
 
             // Ignore function () use ($foo) {}
             if ($tokens[$useStatementStartIndex]['content'] === '(') {
@@ -1052,6 +1055,9 @@ protected function getUseStatements(File $phpcsFile): array
 
             $semicolonIndex = $phpcsFile->findNext(T_SEMICOLON, $useStatementStartIndex + 1);
             $useStatementEndIndex = $phpcsFile->findPrevious(Tokens::$emptyTokens, $semicolonIndex - 1, null, true);
+            if ($useStatementEndIndex === false) {
+                continue;
+            }
 
             $statement = '';
             for ($i = $useStatementStartIndex; $i <= $useStatementEndIndex; $i++) {
@@ -1239,7 +1245,7 @@ protected function parse(File $phpcsFile, int $startIndex, int $endIndex): array
         }
 
         $classIndex = $phpcsFile->findNext(Tokens::$emptyTokens, $startIndex + 1, null, true);
-        if (empty($tokens[$classIndex])) {
+        if ($classIndex === false || empty($tokens[$classIndex])) {
             throw new RuntimeException('Should not happen');
         }
 

PhpCollective/Traits/BasicsTrait.php

@@ -54,6 +54,9 @@ protected function getNamespaceStatement(File $phpcsFile): array
         $namespace = '';
         $namespaceStartIndex = $phpcsFile->findNext(Tokens::$emptyTokens, $namespaceIndex + 1, null, true);
         $namespaceEndIndex = $phpcsFile->findPrevious(Tokens::$emptyTokens, $endIndex - 1, null, true);
+        if ($namespaceStartIndex === false || $namespaceEndIndex === false) {
+            return [];
+        }
         for ($i = $namespaceStartIndex; $i <= $namespaceEndIndex; $i++) {
             $namespace .= $tokens[$i]['content'];
         }

PhpCollective/Traits/UseStatementsTrait.php

@@ -28,6 +28,9 @@ protected function getUseStatements(File $phpcsFile): array
             }
 
             $useStatementStartIndex = $phpcsFile->findNext(Tokens::$emptyTokens, $index + 1, null, true);
+            if ($useStatementStartIndex === false) {
+                continue;
+            }
 
             // Ignore function () use ($foo) {}
             if ($tokens[$useStatementStartIndex]['content'] === '(') {
@@ -36,6 +39,9 @@ protected function getUseStatements(File $phpcsFile): array
 
             $semicolonIndex = $phpcsFile->findNext(T_SEMICOLON, $useStatementStartIndex + 1);
             $useStatementEndIndex = $phpcsFile->findPrevious(Tokens::$emptyTokens, $semicolonIndex - 1, null, true);
+            if ($useStatementEndIndex === false) {
+                continue;
+            }
 
             $statement = '';
             for ($i = $useStatementStartIndex; $i <= $useStatementEndIndex; $i++) {