function UselessVariableSniff::findPreviousVariablePointer

2 calls to UselessVariableSniff::findPreviousVariablePointer()

UselessVariableSniff::hasAnotherAssignmentBefore in vendor/slevomat/coding-standard/SlevomatCodingStandard/Sniffs/Variables/UselessVariableSniff.php

UselessVariableSniff::process in vendor/slevomat/coding-standard/SlevomatCodingStandard/Sniffs/Variables/UselessVariableSniff.php

* @phpcsSuppress SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint *

File

vendor/slevomat/coding-standard/SlevomatCodingStandard/Sniffs/Variables/UselessVariableSniff.php, line 186

Class

UselessVariableSniff

Namespace

SlevomatCodingStandard\Sniffs\Variables

Code

private function findPreviousVariablePointer(File $phpcsFile, int $pointer, string $variableName) : ?int {
    $tokens = $phpcsFile->getTokens();
    for ($i = $pointer - 1; $i >= 0; $i--) {
        if (in_array($tokens[$i]['code'], TokenHelper::$functionTokenCodes, true) && ScopeHelper::isInSameScope($phpcsFile, $tokens[$i]['scope_opener'] + 1, $pointer)) {
            return null;
        }
        if ($tokens[$i]['code'] !== T_VARIABLE) {
            continue;
        }
        if ($tokens[$i]['content'] !== $variableName) {
            continue;
        }
        $previousPointer = TokenHelper::findPreviousEffective($phpcsFile, $i - 1);
        if ($tokens[$previousPointer]['code'] === T_DOUBLE_COLON) {
            continue;
        }
        if (!ScopeHelper::isInSameScope($phpcsFile, $i, $pointer)) {
            continue;
        }
        return $i;
    }
    return null;
}