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bdfd24339f
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48 lines
2.0 KiB
PHP
48 lines
2.0 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\BetterPhpDocParser\Printer;
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use PHPStan\PhpDocParser\Ast\PhpDoc\PhpDocChildNode;
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use PHPStan\PhpDocParser\Ast\PhpDoc\PhpDocNode;
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use PHPStan\PhpDocParser\Lexer\Lexer;
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use Rector\BetterPhpDocParser\ValueObject\PhpDocAttributeKey;
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use Rector\BetterPhpDocParser\ValueObject\StartAndEnd;
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final class RemoveNodesStartAndEndResolver
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{
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/**
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* @param mixed[] $tokens
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* @return StartAndEnd[]
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*/
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public function resolve(PhpDocNode $originalPhpDocNode, PhpDocNode $currentPhpDocNode, array $tokens) : array
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{
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$removedNodePositions = [];
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/** @var PhpDocChildNode[] $removedChildNodes */
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$removedChildNodes = \array_diff($originalPhpDocNode->children, $currentPhpDocNode->children);
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$lastEndPosition = null;
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foreach ($removedChildNodes as $removedChildNode) {
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/** @var StartAndEnd|null $removedPhpDocNodeInfo */
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$removedPhpDocNodeInfo = $removedChildNode->getAttribute(PhpDocAttributeKey::START_AND_END);
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// it's not there when comment block has empty row "\s\*\n"
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if (!$removedPhpDocNodeInfo instanceof StartAndEnd) {
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continue;
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}
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// change start position to start of the line, so the whole line is removed
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$seekPosition = $removedPhpDocNodeInfo->getStart();
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while ($seekPosition >= 0 && $tokens[$seekPosition][1] !== Lexer::TOKEN_HORIZONTAL_WS) {
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if ($tokens[$seekPosition][1] === Lexer::TOKEN_PHPDOC_EOL) {
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break;
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}
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// do not colide
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if ($lastEndPosition < $seekPosition) {
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break;
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}
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--$seekPosition;
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}
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$lastEndPosition = $removedPhpDocNodeInfo->getEnd();
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$removedNodePositions[] = new StartAndEnd(\max(0, $seekPosition - 1), $removedPhpDocNodeInfo->getEnd());
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}
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return $removedNodePositions;
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}
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}
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