DisallowLateStaticBindingForConstantsSniff.php

<?php

declare (strict_types=1);
namespace SlevomatCodingStandard\Sniffs\Classes;

use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Sniffs\Sniff;
use SlevomatCodingStandard\Helpers\TokenHelper;
use function strtolower;
use const T_DOUBLE_COLON;
use const T_OPEN_PARENTHESIS;
use const T_STATIC;
use const T_STRING;
class DisallowLateStaticBindingForConstantsSniff implements Sniff {
    public const CODE_DISALLOWED_LATE_STATIC_BINDING_FOR_CONSTANT = 'DisallowedLateStaticBindingForConstant';
    
    /**
     * @return array<int, (int|string)>
     */
    public function register() : array {
        return [
            T_STATIC,
        ];
    }
    
    /**
     * @phpcsSuppress SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint
     * @param int $staticPointer
     */
    public function process(File $phpcsFile, $staticPointer) : void {
        $tokens = $phpcsFile->getTokens();
        $doubleColonPointer = TokenHelper::findNextEffective($phpcsFile, $staticPointer + 1);
        if ($tokens[$doubleColonPointer]['code'] !== T_DOUBLE_COLON) {
            return;
        }
        $stringPointer = TokenHelper::findNextEffective($phpcsFile, $doubleColonPointer + 1);
        if ($tokens[$stringPointer]['code'] !== T_STRING) {
            return;
        }
        if (strtolower($tokens[$stringPointer]['content']) === 'class') {
            return;
        }
        $pointerAfterString = TokenHelper::findNextEffective($phpcsFile, $stringPointer + 1);
        if ($tokens[$pointerAfterString]['code'] === T_OPEN_PARENTHESIS) {
            return;
        }
        $fix = $phpcsFile->addFixableError('Late static binding for constants is disallowed.', $staticPointer, self::CODE_DISALLOWED_LATE_STATIC_BINDING_FOR_CONSTANT);
        if (!$fix) {
            return;
        }
        $phpcsFile->fixer
            ->beginChangeset();
        $phpcsFile->fixer
            ->replaceToken($staticPointer, 'self');
        $phpcsFile->fixer
            ->endChangeset();
    }

}