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<?php declare(strict_types=1);
/*
* This file is part of phpunit/php-code-coverage.
*
* (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;
use function array_diff;
use function array_diff_key;
use function array_flip;
use function array_intersect;
use function array_intersect_key;
use function count;
use function in_array;
use function range;
use SebastianBergmann\CodeCoverage\Driver\Driver;
use SebastianBergmann\CodeCoverage\StaticAnalysis\FileAnalyser;
/**
* @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
*/
final class RawCodeCoverageData
{
/**
* @var array<string, array<int>>
*/
private static $emptyLineCache = [];
/**
* @var array
*
* @see https://xdebug.org/docs/code_coverage for format
*/
private $lineCoverage;
/**
* @var array
*
* @see https://xdebug.org/docs/code_coverage for format
*/
private $functionCoverage;
public static function fromXdebugWithoutPathCoverage(array $rawCoverage): self
{
return new self($rawCoverage, []);
}
public static function fromXdebugWithPathCoverage(array $rawCoverage): self
{
$lineCoverage = [];
$functionCoverage = [];
foreach ($rawCoverage as $file => $fileCoverageData) {
$lineCoverage[$file] = $fileCoverageData['lines'];
$functionCoverage[$file] = $fileCoverageData['functions'];
}
return new self($lineCoverage, $functionCoverage);
}
public static function fromXdebugWithMixedCoverage(array $rawCoverage): self
{
$lineCoverage = [];
$functionCoverage = [];
foreach ($rawCoverage as $file => $fileCoverageData) {
if (!isset($fileCoverageData['functions'])) {
// Current file does not have functions, so line coverage
// is stored in $fileCoverageData, not in $fileCoverageData['lines']
$lineCoverage[$file] = $fileCoverageData;
continue;
}
$lineCoverage[$file] = $fileCoverageData['lines'];
$functionCoverage[$file] = $fileCoverageData['functions'];
}
return new self($lineCoverage, $functionCoverage);
}
public static function fromUncoveredFile(string $filename, FileAnalyser $analyser): self
{
$lineCoverage = [];
foreach ($analyser->executableLinesIn($filename) as $line) {
$lineCoverage[$line] = Driver::LINE_NOT_EXECUTED;
}
return new self([$filename => $lineCoverage], []);
}
private function __construct(array $lineCoverage, array $functionCoverage)
{
$this->lineCoverage = $lineCoverage;
$this->functionCoverage = $functionCoverage;
$this->skipEmptyLines();
}
public function clear(): void
{
$this->lineCoverage = $this->functionCoverage = [];
}
public function lineCoverage(): array
{
return $this->lineCoverage;
}
public function functionCoverage(): array
{
return $this->functionCoverage;
}
public function removeCoverageDataForFile(string $filename): void
{
unset($this->lineCoverage[$filename], $this->functionCoverage[$filename]);
}
/**
* @param int[] $lines
*/
public function keepLineCoverageDataOnlyForLines(string $filename, array $lines): void
{
if (!isset($this->lineCoverage[$filename])) {
return;
}
$this->lineCoverage[$filename] = array_intersect_key(
$this->lineCoverage[$filename],
array_flip($lines)
);
}
/**
* @param int[] $lines
*/
public function keepFunctionCoverageDataOnlyForLines(string $filename, array $lines): void
{
if (!isset($this->functionCoverage[$filename])) {
return;
}
foreach ($this->functionCoverage[$filename] as $functionName => $functionData) {
foreach ($functionData['branches'] as $branchId => $branch) {
if (count(array_diff(range($branch['line_start'], $branch['line_end']), $lines)) > 0) {
unset($this->functionCoverage[$filename][$functionName]['branches'][$branchId]);
foreach ($functionData['paths'] as $pathId => $path) {
if (in_array($branchId, $path['path'], true)) {
unset($this->functionCoverage[$filename][$functionName]['paths'][$pathId]);
}
}
}
}
}
}
/**
* @param int[] $lines
*/
public function removeCoverageDataForLines(string $filename, array $lines): void
{
if (empty($lines)) {
return;
}
if (!isset($this->lineCoverage[$filename])) {
return;
}
$this->lineCoverage[$filename] = array_diff_key(
$this->lineCoverage[$filename],
array_flip($lines)
);
if (isset($this->functionCoverage[$filename])) {
foreach ($this->functionCoverage[$filename] as $functionName => $functionData) {
foreach ($functionData['branches'] as $branchId => $branch) {
if (count(array_intersect($lines, range($branch['line_start'], $branch['line_end']))) > 0) {
unset($this->functionCoverage[$filename][$functionName]['branches'][$branchId]);
foreach ($functionData['paths'] as $pathId => $path) {
if (in_array($branchId, $path['path'], true)) {
unset($this->functionCoverage[$filename][$functionName]['paths'][$pathId]);
}
}
}
}
}
}
}
/**
* At the end of a file, the PHP interpreter always sees an implicit return. Where this occurs in a file that has
* e.g. a class definition, that line cannot be invoked from a test and results in confusing coverage. This engine
* implementation detail therefore needs to be masked which is done here by simply ensuring that all empty lines
* are skipped over for coverage purposes.
*
* @see https://github.com/sebastianbergmann/php-code-coverage/issues/799
*/
private function skipEmptyLines(): void
{
foreach ($this->lineCoverage as $filename => $coverage) {
foreach ($this->getEmptyLinesForFile($filename) as $emptyLine) {
unset($this->lineCoverage[$filename][$emptyLine]);
}
}
}
private function getEmptyLinesForFile(string $filename): array
{
if (!isset(self::$emptyLineCache[$filename])) {
self::$emptyLineCache[$filename] = [];
if (is_file($filename)) {
$sourceLines = explode("\n", file_get_contents($filename));
foreach ($sourceLines as $line => $source) {
if (trim($source) === '') {
self::$emptyLineCache[$filename][] = ($line + 1);
}
}
}
}
return self::$emptyLineCache[$filename];
}
}
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