253 lines
6.5 KiB
PHP
253 lines
6.5 KiB
PHP
<?php
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declare(strict_types=1);
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/*
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* This file is part of PHP CS Fixer.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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* Dariusz Rumiński <dariusz.ruminski@gmail.com>
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*
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* This source file is subject to the MIT license that is bundled
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* with this source code in the file LICENSE.
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*/
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namespace PhpCsFixer\DocBlock;
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use PhpCsFixer\Preg;
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use PhpCsFixer\Tokenizer\Analyzer\Analysis\NamespaceAnalysis;
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use PhpCsFixer\Tokenizer\Analyzer\Analysis\NamespaceUseAnalysis;
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/**
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* This class represents a docblock.
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*
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* It internally splits it up into "lines" that we can manipulate.
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*
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* @author Graham Campbell <hello@gjcampbell.co.uk>
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*/
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final class DocBlock
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{
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/**
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* @var list<Line>
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*/
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private array $lines = [];
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/**
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* @var null|list<Annotation>
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*/
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private ?array $annotations = null;
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private ?NamespaceAnalysis $namespace;
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/**
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* @var list<NamespaceUseAnalysis>
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*/
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private array $namespaceUses;
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/**
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* @param list<NamespaceUseAnalysis> $namespaceUses
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*/
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public function __construct(string $content, ?NamespaceAnalysis $namespace = null, array $namespaceUses = [])
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{
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foreach (Preg::split('/([^\n\r]+\R*)/', $content, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE) as $line) {
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$this->lines[] = new Line($line);
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}
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$this->namespace = $namespace;
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$this->namespaceUses = $namespaceUses;
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}
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public function __toString(): string
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{
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return $this->getContent();
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}
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/**
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* Get this docblock's lines.
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*
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* @return list<Line>
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*/
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public function getLines(): array
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{
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return $this->lines;
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}
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/**
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* Get a single line.
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*/
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public function getLine(int $pos): ?Line
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{
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return $this->lines[$pos] ?? null;
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}
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/**
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* Get this docblock's annotations.
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*
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* @return list<Annotation>
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*/
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public function getAnnotations(): array
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{
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if (null !== $this->annotations) {
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return $this->annotations;
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}
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$this->annotations = [];
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$total = \count($this->lines);
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for ($index = 0; $index < $total; ++$index) {
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if ($this->lines[$index]->containsATag()) {
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// get all the lines that make up the annotation
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$lines = \array_slice($this->lines, $index, $this->findAnnotationLength($index), true);
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$annotation = new Annotation($lines, $this->namespace, $this->namespaceUses);
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// move the index to the end of the annotation to avoid
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// checking it again because we know the lines inside the
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// current annotation cannot be part of another annotation
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$index = $annotation->getEnd();
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// add the current annotation to the list of annotations
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$this->annotations[] = $annotation;
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}
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}
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return $this->annotations;
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}
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public function isMultiLine(): bool
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{
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return 1 !== \count($this->lines);
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}
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/**
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* Take a one line doc block, and turn it into a multi line doc block.
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*/
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public function makeMultiLine(string $indent, string $lineEnd): void
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{
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if ($this->isMultiLine()) {
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return;
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}
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$lineContent = $this->getSingleLineDocBlockEntry($this->lines[0]);
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if ('' === $lineContent) {
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$this->lines = [
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new Line('/**'.$lineEnd),
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new Line($indent.' *'.$lineEnd),
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new Line($indent.' */'),
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];
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return;
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}
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$this->lines = [
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new Line('/**'.$lineEnd),
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new Line($indent.' * '.$lineContent.$lineEnd),
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new Line($indent.' */'),
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];
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}
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public function makeSingleLine(): void
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{
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if (!$this->isMultiLine()) {
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return;
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}
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$usefulLines = array_filter(
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$this->lines,
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static function (Line $line): bool {
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return $line->containsUsefulContent();
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}
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);
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if (1 < \count($usefulLines)) {
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return;
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}
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$lineContent = '';
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if (\count($usefulLines) > 0) {
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$lineContent = $this->getSingleLineDocBlockEntry(array_shift($usefulLines));
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}
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$this->lines = [new Line('/** '.$lineContent.' */')];
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}
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public function getAnnotation(int $pos): ?Annotation
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{
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$annotations = $this->getAnnotations();
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return $annotations[$pos] ?? null;
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}
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/**
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* Get specific types of annotations only.
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*
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* @param list<string>|string $types
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*
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* @return list<Annotation>
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*/
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public function getAnnotationsOfType($types): array
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{
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$typesToSearchFor = (array) $types;
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$annotations = [];
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foreach ($this->getAnnotations() as $annotation) {
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$tagName = $annotation->getTag()->getName();
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if (\in_array($tagName, $typesToSearchFor, true)) {
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$annotations[] = $annotation;
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}
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}
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return $annotations;
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}
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/**
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* Get the actual content of this docblock.
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*/
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public function getContent(): string
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{
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return implode('', $this->lines);
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}
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private function findAnnotationLength(int $start): int
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{
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$index = $start;
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while ($line = $this->getLine(++$index)) {
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if ($line->containsATag()) {
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// we've 100% reached the end of the description if we get here
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break;
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}
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if (!$line->containsUsefulContent()) {
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// if next line is also non-useful, or contains a tag, then we're done here
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$next = $this->getLine($index + 1);
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if (null === $next || !$next->containsUsefulContent() || $next->containsATag()) {
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break;
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}
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// otherwise, continue, the annotation must have contained a blank line in its description
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}
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}
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return $index - $start;
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}
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private function getSingleLineDocBlockEntry(Line $line): string
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{
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$lineString = $line->getContent();
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if ('' === $lineString) {
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return $lineString;
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}
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$lineString = str_replace('*/', '', $lineString);
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$lineString = trim($lineString);
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if (str_starts_with($lineString, '/**')) {
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$lineString = substr($lineString, 3);
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} elseif (str_starts_with($lineString, '*')) {
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$lineString = substr($lineString, 1);
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}
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return trim($lineString);
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}
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}
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