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<?php
/*
* This file is part of the php-code-coverage package.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace SebastianBergmann\CodeCoverage\Driver;
use SebastianBergmann\CodeCoverage\RuntimeException;
/**
* Driver for PHPDBG's code coverage functionality.
*
* @codeCoverageIgnore
*/
class PHPDBG implements Driver
{
/**
* Constructor.
*/
public function __construct()
{
if (PHP_SAPI !== 'phpdbg') {
throw new RuntimeException(
'This driver requires the PHPDBG SAPI'
);
}
if (!function_exists('phpdbg_start_oplog')) {
throw new RuntimeException(
'This build of PHPDBG does not support code coverage'
);
}
}
/**
* Start collection of code coverage information.
*
* @param bool $determineUnusedAndDead
*/
public function start($determineUnusedAndDead = true)
{
phpdbg_start_oplog();
}
/**
* Stop collection of code coverage information.
*
* @return array
*/
public function stop()
{
static $fetchedLines = [];
$dbgData = phpdbg_end_oplog();
if ($fetchedLines == []) {
$sourceLines = phpdbg_get_executable();
} else {
$newFiles = array_diff(
get_included_files(),
array_keys($fetchedLines)
);
if ($newFiles) {
$sourceLines = phpdbg_get_executable(
['files' => $newFiles]
);
} else {
$sourceLines = [];
}
}
foreach ($sourceLines as $file => $lines) {
foreach ($lines as $lineNo => $numExecuted) {
$sourceLines[$file][$lineNo] = self::LINE_NOT_EXECUTED;
}
}
$fetchedLines = array_merge($fetchedLines, $sourceLines);
return $this->detectExecutedLines($fetchedLines, $dbgData);
}
/**
* Convert phpdbg based data into the format CodeCoverage expects
*
* @param array $sourceLines
* @param array $dbgData
*
* @return array
*/
private function detectExecutedLines(array $sourceLines, array $dbgData)
{
foreach ($dbgData as $file => $coveredLines) {
foreach ($coveredLines as $lineNo => $numExecuted) {
// phpdbg also reports $lineNo=0 when e.g. exceptions get thrown.
// make sure we only mark lines executed which are actually executable.
if (isset($sourceLines[$file][$lineNo])) {
$sourceLines[$file][$lineNo] = self::LINE_EXECUTED;
}
}
}
return $sourceLines;
}
}
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