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AsymmetricVisibilityTokenEmulator.php (3.27 KB)

AttributeEmulator.php (1.44 KB)

EnumTokenEmulator.php (701 B)

KeywordEmulator.php (1.79 KB)

MatchTokenEmulator.php (422 B)

PropertyTokenEmulator.php (437 B)

ReadonlyFunctionTokenEmulator.php (976 B)

ReverseEmulator.php (1013 B)

TokenEmulator.php (819 B)

VoidCastEmulator.php (3.04 KB)

Edit: KeywordEmulator.php

<?php declare(strict_types=1);

namespace PhpParser\Lexer\TokenEmulator;

use PhpParser\Token;

abstract class KeywordEmulator extends TokenEmulator {
    abstract public function getKeywordString(): string;
    abstract public function getKeywordToken(): int;

public function isEmulationNeeded(string $code): bool {
        return strpos(strtolower($code), $this->getKeywordString()) !== false;
    }

/** @param Token[] $tokens */
    protected function isKeywordContext(array $tokens, int $pos): bool {
        $prevToken = $this->getPreviousNonSpaceToken($tokens, $pos);
        if ($prevToken === null) {
            return false;
        }
        return $prevToken->id !== \T_OBJECT_OPERATOR
            && $prevToken->id !== \T_NULLSAFE_OBJECT_OPERATOR;
    }

public function emulate(string $code, array $tokens): array {
        $keywordString = $this->getKeywordString();
        foreach ($tokens as $i => $token) {
            if ($token->id === T_STRING && strtolower($token->text) === $keywordString
                    && $this->isKeywordContext($tokens, $i)) {
                $token->id = $this->getKeywordToken();
            }
        }

return $tokens;
    }

/** @param Token[] $tokens */
    private function getPreviousNonSpaceToken(array $tokens, int $start): ?Token {
        for ($i = $start - 1; $i >= 0; --$i) {
            if ($tokens[$i]->id === T_WHITESPACE) {
                continue;
            }

return $tokens[$i];
        }

return null;
    }

public function reverseEmulate(string $code, array $tokens): array {
        $keywordToken = $this->getKeywordToken();
        foreach ($tokens as $token) {
            if ($token->id === $keywordToken) {
                $token->id = \T_STRING;
            }
        }

return $tokens;
    }
}