rector/packages/BetterPhpDocParser/Printer/PhpDocInfoPrinter.php
2021-04-28 09:33:25 +00:00

378 lines
12 KiB
PHP

<?php
declare(strict_types=1);
namespace Rector\BetterPhpDocParser\Printer;
use Nette\Utils\Strings;
use PHPStan\PhpDocParser\Ast\PhpDoc\ParamTagValueNode;
use PHPStan\PhpDocParser\Ast\PhpDoc\PhpDocChildNode;
use PHPStan\PhpDocParser\Ast\PhpDoc\PhpDocNode;
use PHPStan\PhpDocParser\Ast\PhpDoc\PhpDocTagNode;
use PHPStan\PhpDocParser\Ast\PhpDoc\PropertyTagValueNode;
use PHPStan\PhpDocParser\Ast\PhpDoc\ReturnTagValueNode;
use PHPStan\PhpDocParser\Ast\PhpDoc\ThrowsTagValueNode;
use PHPStan\PhpDocParser\Ast\PhpDoc\VarTagValueNode;
use PHPStan\PhpDocParser\Lexer\Lexer;
use Rector\BetterPhpDocParser\PhpDoc\DoctrineAnnotationTagValueNode;
use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfo;
use Rector\BetterPhpDocParser\PhpDocNodeTraverser\ChangedPhpDocNodeTraverserFactory;
use Rector\BetterPhpDocParser\PhpDocNodeVisitor\ChangedPhpDocNodeVisitor;
use Rector\BetterPhpDocParser\ValueObject\PhpDocAttributeKey;
use Rector\BetterPhpDocParser\ValueObject\StartAndEnd;
use Symplify\SimplePhpDocParser\PhpDocNodeTraverser;
/**
* @see \Rector\Tests\BetterPhpDocParser\PhpDocInfo\PhpDocInfoPrinter\PhpDocInfoPrinterTest
*/
final class PhpDocInfoPrinter
{
/**
* @var string
* @see https://regex101.com/r/Ab0Vey/1
*/
public const CLOSING_DOCBLOCK_REGEX = '#\*\/(\s+)?$#';
/**
* @var string
* @see https://regex101.com/r/Jzqzpw/1
*/
private const MISSING_NEWLINE_REGEX = '#([^\s])\*/$#';
/**
* @var string
* @see https://regex101.com/r/mVmOCY/2
*/
private const OPENING_DOCBLOCK_REGEX = '#^(/\*\*)#';
/**
* @var string
* @see https://regex101.com/r/5fJyws/1
*/
private const CALLABLE_REGEX = '#callable(\s+)\(#';
/**
* @var string
* @see https://regex101.com/r/LLWiPl/1
*/
private const DOCBLOCK_START_REGEX = '#^(\/\/|\/\*\*|\/\*|\#)#';
/**
* @var string
*/
private const NEWLINE_WITH_ASTERISK = PHP_EOL . ' * ';
/**
* @see https://regex101.com/r/WR3goY/1/
* @var string
*/
private const TAG_AND_SPACE_REGEX = '#(@.*?) \(#';
/**
* @var int
*/
private $tokenCount;
/**
* @var int
*/
private $currentTokenPosition;
/**
* @var mixed[]
*/
private $tokens = [];
/**
* @var PhpDocNode
*/
private $phpDocNode;
/**
* @var PhpDocInfo
*/
private $phpDocInfo;
/**
* @var EmptyPhpDocDetector
*/
private $emptyPhpDocDetector;
/**
* @var DocBlockInliner
*/
private $docBlockInliner;
/**
* @var RemoveNodesStartAndEndResolver
*/
private $removeNodesStartAndEndResolver;
/**
* @var ChangedPhpDocNodeVisitor
*/
private $changedPhpDocNodeVisitor;
/**
* @var PhpDocNodeTraverser
*/
private $changedPhpDocNodeTraverser;
public function __construct(
EmptyPhpDocDetector $emptyPhpDocDetector,
DocBlockInliner $docBlockInliner,
RemoveNodesStartAndEndResolver $removeNodesStartAndEndResolver,
ChangedPhpDocNodeVisitor $changedPhpDocNodeVisitor,
ChangedPhpDocNodeTraverserFactory $changedPhpDocNodeTraverserFactory
) {
$this->emptyPhpDocDetector = $emptyPhpDocDetector;
$this->docBlockInliner = $docBlockInliner;
$this->removeNodesStartAndEndResolver = $removeNodesStartAndEndResolver;
$this->changedPhpDocNodeVisitor = $changedPhpDocNodeVisitor;
$this->changedPhpDocNodeTraverser = $changedPhpDocNodeTraverserFactory->create();
}
public function printNew(PhpDocInfo $phpDocInfo): string
{
$docContent = (string) $phpDocInfo->getPhpDocNode();
// fix missing newline in the end of docblock - keep BC compatible for both cases until phpstan with phpdoc-parser 0.5.2 is released
$docContent = Strings::replace($docContent, self::MISSING_NEWLINE_REGEX, "$1\n */");
if ($phpDocInfo->isSingleLine()) {
return $this->docBlockInliner->inline($docContent);
}
return $docContent;
}
/**
* As in php-parser
*
* ref: https://github.com/nikic/PHP-Parser/issues/487#issuecomment-375986259
* - Tokens[node.startPos .. subnode1.startPos]
* - Print(subnode1)
* - Tokens[subnode1.endPos .. subnode2.startPos]
* - Print(subnode2)
* - Tokens[subnode2.endPos .. node.endPos]
*/
public function printFormatPreserving(PhpDocInfo $phpDocInfo): string
{
if ($phpDocInfo->getTokens() === []) {
// completely new one, just print string version of it
if ($phpDocInfo->getPhpDocNode()->children === []) {
return '';
}
return (string) $phpDocInfo->getPhpDocNode();
}
$this->phpDocNode = $phpDocInfo->getPhpDocNode();
$this->tokens = $phpDocInfo->getTokens();
$this->tokenCount = $phpDocInfo->getTokenCount();
$this->phpDocInfo = $phpDocInfo;
$this->currentTokenPosition = 0;
$phpDocString = $this->printPhpDocNode($this->phpDocNode);
// hotfix of extra space with callable ()
return Strings::replace($phpDocString, self::CALLABLE_REGEX, 'callable(');
}
private function printPhpDocNode(PhpDocNode $phpDocNode): string
{
// no nodes were, so empty doc
if ($this->emptyPhpDocDetector->isPhpDocNodeEmpty($phpDocNode)) {
return '';
}
$output = '';
// node output
$nodeCount = count($phpDocNode->children);
foreach ($phpDocNode->children as $key => $phpDocChildNode) {
$output .= $this->printDocChildNode($phpDocChildNode, $key + 1, $nodeCount);
}
$output = $this->printEnd($output);
// fix missing start
if (! Strings::match($output, self::DOCBLOCK_START_REGEX) && $output) {
$output = '/**' . $output;
}
// fix missing end
if (Strings::match($output, self::OPENING_DOCBLOCK_REGEX) && $output && ! Strings::match(
$output,
self::CLOSING_DOCBLOCK_REGEX
)) {
$output .= ' */';
}
return $output;
}
private function printDocChildNode(
PhpDocChildNode $phpDocChildNode,
int $key = 0,
int $nodeCount = 0
): string {
$output = '';
$shouldReprintChildNode = $this->shouldReprint($phpDocChildNode);
if ($phpDocChildNode instanceof PhpDocTagNode) {
if ($shouldReprintChildNode && ($phpDocChildNode->value instanceof ParamTagValueNode || $phpDocChildNode->value instanceof ThrowsTagValueNode || $phpDocChildNode->value instanceof VarTagValueNode || $phpDocChildNode->value instanceof ReturnTagValueNode || $phpDocChildNode->value instanceof PropertyTagValueNode)) {
// the type has changed → reprint
$phpDocChildNodeStartEnd = $phpDocChildNode->getAttribute(PhpDocAttributeKey::START_AND_END);
// bump the last position of token after just printed node
if ($phpDocChildNodeStartEnd instanceof StartAndEnd) {
$this->currentTokenPosition = $phpDocChildNodeStartEnd->getEnd();
}
return $this->standardPrintPhpDocChildNode($phpDocChildNode);
}
if ($phpDocChildNode->value instanceof DoctrineAnnotationTagValueNode && $shouldReprintChildNode) {
$printedNode = (string) $phpDocChildNode;
// remove extra space between tags
$printedNode = Strings::replace($printedNode, self::TAG_AND_SPACE_REGEX, '$1(');
return self::NEWLINE_WITH_ASTERISK . $printedNode;
}
}
/** @var StartAndEnd|null $startAndEnd */
$startAndEnd = $phpDocChildNode->getAttribute(PhpDocAttributeKey::START_AND_END);
if ($startAndEnd instanceof StartAndEnd && ! $shouldReprintChildNode) {
$isLastToken = $nodeCount === $key;
// correct previously changed node
$this->correctPreviouslyReprintedFirstNode($key, $startAndEnd);
$output = $this->addTokensFromTo(
$output,
$this->currentTokenPosition,
$startAndEnd->getEnd(),
$isLastToken
);
$this->currentTokenPosition = $startAndEnd->getEnd();
return rtrim($output);
}
if ($startAndEnd instanceof StartAndEnd) {
$this->currentTokenPosition = $startAndEnd->getEnd();
}
$standardPrintedPhpDocChildNode = $this->standardPrintPhpDocChildNode($phpDocChildNode);
return $output . $standardPrintedPhpDocChildNode;
}
private function printEnd(string $output): string
{
$lastTokenPosition = $this->phpDocNode->getAttribute(
PhpDocAttributeKey::LAST_PHP_DOC_TOKEN_POSITION
) ?: $this->currentTokenPosition;
if ($lastTokenPosition === 0) {
$lastTokenPosition = 1;
}
return $this->addTokensFromTo($output, $lastTokenPosition, $this->tokenCount, true);
}
private function addTokensFromTo(string $output, int $from, int $to, bool $shouldSkipEmptyLinesAbove): string
{
// skip removed nodes
$positionJumpSet = [];
$removedStartAndEnds = $this->removeNodesStartAndEndResolver->resolve(
$this->phpDocInfo->getOriginalPhpDocNode(),
$this->phpDocNode,
$this->tokens
);
foreach ($removedStartAndEnds as $removedStartAndEnd) {
$positionJumpSet[$removedStartAndEnd->getStart()] = $removedStartAndEnd->getEnd();
}
// include also space before, in case of inlined docs
if (isset($this->tokens[$from - 1]) && $this->tokens[$from - 1][1] === Lexer::TOKEN_HORIZONTAL_WS) {
--$from;
}
// skip extra empty lines above if this is the last one
if ($shouldSkipEmptyLinesAbove &&
Strings::contains($this->tokens[$from][0], PHP_EOL) &&
Strings::contains($this->tokens[$from + 1][0], PHP_EOL)
) {
++$from;
}
return $this->appendToOutput($output, $from, $to, $positionJumpSet);
}
/**
* @param array<int, int> $positionJumpSet
*/
private function appendToOutput(string $output, int $from, int $to, array $positionJumpSet): string
{
for ($i = $from; $i < $to; ++$i) {
while (isset($positionJumpSet[$i])) {
$i = $positionJumpSet[$i];
continue;
}
$output .= $this->tokens[$i][0] ?? '';
}
return $output;
}
private function correctPreviouslyReprintedFirstNode(int $key, StartAndEnd $startAndEnd): void
{
if ($this->currentTokenPosition !== 0) {
return;
}
if ($key === 1) {
return;
}
$startTokenPosition = $startAndEnd->getStart();
$tokens = $this->phpDocInfo->getTokens();
if (! isset($tokens[$startTokenPosition - 1])) {
return;
}
$previousToken = $tokens[$startTokenPosition - 1];
if ($previousToken[1] === Lexer::TOKEN_PHPDOC_EOL) {
--$startTokenPosition;
}
$this->currentTokenPosition = $startTokenPosition;
}
private function shouldReprint(PhpDocChildNode $phpDocChildNode): bool
{
$this->changedPhpDocNodeTraverser->traverse($phpDocChildNode);
return $this->changedPhpDocNodeVisitor->hasChanged();
}
private function standardPrintPhpDocChildNode(PhpDocChildNode $phpDocChildNode): string
{
if ($this->phpDocInfo->isSingleLine()) {
return ' ' . $phpDocChildNode;
}
return self::NEWLINE_WITH_ASTERISK . $phpDocChildNode;
}
}