function RequireNullCoalesceEqualOperatorSniff::process

* @phpcsSuppress SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint *

Parameters

int $equalPointer:

Overrides Sniff::process

File

vendor/slevomat/coding-standard/SlevomatCodingStandard/Sniffs/ControlStructures/RequireNullCoalesceEqualOperatorSniff.php, line 38

Class

RequireNullCoalesceEqualOperatorSniff

Namespace

SlevomatCodingStandard\Sniffs\ControlStructures

Code

public function process(File $phpcsFile, $equalPointer) : void {
    $this->enable = SniffSettingsHelper::isEnabledByPhpVersion($this->enable, 70400);
    if (!$this->enable) {
        return;
    }
    
    /** @var int $variableStartPointer */
    $variableStartPointer = TokenHelper::findNextEffective($phpcsFile, $equalPointer + 1);
    $variableEndPointer = IdentificatorHelper::findEndPointer($phpcsFile, $variableStartPointer);
    if ($variableEndPointer === null) {
        return;
    }
    $nullCoalescePointer = TokenHelper::findNextEffective($phpcsFile, $variableEndPointer + 1);
    $tokens = $phpcsFile->getTokens();
    if ($tokens[$nullCoalescePointer]['code'] !== T_COALESCE) {
        return;
    }
    $variableContent = IdentificatorHelper::getContent($phpcsFile, $variableStartPointer, $variableEndPointer);
    
    /** @var int $beforeEqualEndPointer */
    $beforeEqualEndPointer = TokenHelper::findPreviousEffective($phpcsFile, $equalPointer - 1);
    $beforeEqualStartPointer = IdentificatorHelper::findStartPointer($phpcsFile, $beforeEqualEndPointer);
    if ($beforeEqualStartPointer === null) {
        return;
    }
    $beforeEqualVariableContent = IdentificatorHelper::getContent($phpcsFile, $beforeEqualStartPointer, $beforeEqualEndPointer);
    if ($beforeEqualVariableContent !== $variableContent) {
        return;
    }
    $semicolonPointer = TokenHelper::findNext($phpcsFile, T_SEMICOLON, $equalPointer + 1);
    if (TokenHelper::findNext($phpcsFile, Tokens::$operators, $nullCoalescePointer + 1, $semicolonPointer) !== null) {
        return;
    }
    $fix = $phpcsFile->addFixableError('Use "??=" operator instead of "=" and "??".', $equalPointer, self::CODE_REQUIRED_NULL_COALESCE_EQUAL_OPERATOR);
    if (!$fix) {
        return;
    }
    $phpcsFile->fixer
        ->beginChangeset();
    FixerHelper::change($phpcsFile, $equalPointer, $nullCoalescePointer, '??=');
    $phpcsFile->fixer
        ->endChangeset();
}