<?php
/**
* Parses and verifies the file doc comment.
*
* @author Greg Sherwood <gsherwood@squiz.net>
* @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
* @license https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
*/
namespace PHP_CodeSniffer\Standards\Squiz\Sniffs\Commenting;
use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Sniffs\Sniff;
class FileCommentSniff implements Sniff
{
/**
* A list of tokenizers this sniff supports.
*
* @var array
*/
public $supportedTokenizers = [
'PHP',
'JS',
];
/**
* Returns an array of tokens this test wants to listen for.
*
* @return array
*/
public function register()
{
return [T_OPEN_TAG];
}//end register()
/**
* Processes this test, when one of its tokens is encountered.
*
* @param \PHP_CodeSniffer\Files\File $phpcsFile The file being scanned.
* @param int $stackPtr The position of the current token
* in the stack passed in $tokens.
*
* @return int
*/
public function process(File $phpcsFile, $stackPtr)
{
$tokens = $phpcsFile->getTokens();
$commentStart = $phpcsFile->findNext(T_WHITESPACE, ($stackPtr + 1), null, true);
if ($tokens[$commentStart]['code'] === T_COMMENT) {
$phpcsFile->addError('You must use "/**" style comments for a file comment', $commentStart, 'WrongStyle');
$phpcsFile->recordMetric($stackPtr, 'File has doc comment', 'yes');
return ($phpcsFile->numTokens + 1);
} else if ($commentStart === false || $tokens[$commentStart]['code'] !== T_DOC_COMMENT_OPEN_TAG) {
$phpcsFile->addError('Missing file doc comment', $stackPtr, 'Missing');
$phpcsFile->recordMetric($stackPtr, 'File has doc comment', 'no');
return ($phpcsFile->numTokens + 1);
}
if (isset($tokens[$commentStart]['comment_closer']) === false
|| ($tokens[$tokens[$commentStart]['comment_closer']]['content'] === ''
&& $tokens[$commentStart]['comment_closer'] === ($phpcsFile->numTokens - 1))
) {
// Don't process an unfinished file comment during live coding.
return ($phpcsFile->numTokens + 1);
}
$commentEnd = $tokens[$commentStart]['comment_closer'];
$nextToken = $phpcsFile->findNext(
T_WHITESPACE,
($commentEnd + 1),
null,
true
);
$ignore = [
T_CLASS,
T_INTERFACE,
T_TRAIT,
T_FUNCTION,
T_CLOSURE,
T_PUBLIC,
T_PRIVATE,
T_PROTECTED,
T_FINAL,
T_STATIC,
T_ABSTRACT,
T_CONST,
T_PROPERTY,
T_INCLUDE,
T_INCLUDE_ONCE,
T_REQUIRE,
T_REQUIRE_ONCE,
];
if (in_array($tokens[$nextToken]['code'], $ignore, true) === true) {
$phpcsFile->addError('Missing file doc comment', $stackPtr, 'Missing');
$phpcsFile->recordMetric($stackPtr, 'File has doc comment', 'no');
return ($phpcsFile->numTokens + 1);
}
$phpcsFile->recordMetric($stackPtr, 'File has doc comment', 'yes');
// No blank line between the open tag and the file comment.
if ($tokens[$commentStart]['line'] > ($tokens[$stackPtr]['line'] + 1)) {
$error = 'There must be no blank lines before the file comment';
$phpcsFile->addError($error, $stackPtr, 'SpacingAfterOpen');
}
// Exactly one blank line after the file comment.
$next = $phpcsFile->findNext(T_WHITESPACE, ($commentEnd + 1), null, true);
if ($tokens[$next]['line'] !== ($tokens[$commentEnd]['line'] + 2)) {
$error = 'There must be exactly one blank line after the file comment';
$phpcsFile->addError($error, $commentEnd, 'SpacingAfterComment');
}
// Required tags in correct order.
$required = [
'@package' => true,
'@subpackage' => true,
'@author' => true,
'@copyright' => true,
];
$foundTags = [];
foreach ($tokens[$commentStart]['comment_tags'] as $tag) {
$name = $tokens[$tag]['content'];
$isRequired = isset($required[$name]);
if ($isRequired === true && in_array($name, $foundTags, true) === true) {
$error = 'Only one %s tag is allowed in a file comment';
$data = [$name];
$phpcsFile->addError($error, $tag, 'Duplicate'.ucfirst(substr($name, 1)).'Tag', $data);
}
$foundTags[] = $name;
if ($isRequired === false) {
continue;
}
$string = $phpcsFile->findNext(T_DOC_COMMENT_STRING, $tag, $commentEnd);
if ($string === false || $tokens[$string]['line'] !== $tokens[$tag]['line']) {
$error = 'Content missing for %s tag in file comment';
$data = [$name];
$phpcsFile->addError($error, $tag, 'Empty'.ucfirst(substr($name, 1)).'Tag', $data);
continue;
}
if ($name === '@author') {
if ($tokens[$string]['content'] !== 'Squiz Pty Ltd <products@squiz.net>') {
$error = 'Expected "Squiz Pty Ltd <products@squiz.net>" for author tag';
$fix = $phpcsFile->addFixableError($error, $tag, 'IncorrectAuthor');
if ($fix === true) {
$expected = 'Squiz Pty Ltd <products@squiz.net>';
$phpcsFile->fixer->replaceToken($string, $expected);
}
}
} else if ($name === '@copyright') {
if (preg_match('/^([0-9]{4})(-[0-9]{4})? (Squiz Pty Ltd \(ABN 77 084 670 600\))$/', $tokens[$string]['content']) === 0) {
$error = 'Expected "xxxx-xxxx Squiz Pty Ltd (ABN 77 084 670 600)" for copyright declaration';
$fix = $phpcsFile->addFixableError($error, $tag, 'IncorrectCopyright');
if ($fix === true) {
$matches = [];
preg_match('/^(([0-9]{4})(-[0-9]{4})?)?.*$/', $tokens[$string]['content'], $matches);
if (isset($matches[1]) === false) {
$matches[1] = date('Y');
}
$expected = $matches[1].' Squiz Pty Ltd (ABN 77 084 670 600)';
$phpcsFile->fixer->replaceToken($string, $expected);
}
}
}//end if
}//end foreach
// Check if the tags are in the correct position.
$pos = 0;
foreach ($required as $tag => $true) {
if (in_array($tag, $foundTags, true) === false) {
$error = 'Missing %s tag in file comment';
$data = [$tag];
$phpcsFile->addError($error, $commentEnd, 'Missing'.ucfirst(substr($tag, 1)).'Tag', $data);
}
if (isset($foundTags[$pos]) === false) {
break;
}
if ($foundTags[$pos] !== $tag) {
$error = 'The tag in position %s should be the %s tag';
$data = [
($pos + 1),
$tag,
];
$phpcsFile->addError($error, $tokens[$commentStart]['comment_tags'][$pos], ucfirst(substr($tag, 1)).'TagOrder', $data);
}
$pos++;
}//end foreach
// Ignore the rest of the file.
return ($phpcsFile->numTokens + 1);
}//end process()
}//end class