/**
* Converts the ruleset to CSS. Applies the output filters to the output.
*
* @param ILess_Node_Ruleset $ruleset
* @param array $variables
* @return string The generated CSS code
*/
protected function toCSS(ILess_Node_Ruleset $ruleset, array $variables)
{
// the cache key consists of:
// 1) parsed rules
// 2) assigned variables via the API
// 3) environment options
$cacheKey = $this->generateCacheKey(serialize($this->rules) . serialize($variables) . serialize(array($this->env->compress, $this->env->sourceMap, $this->env->sourceMapOptions, $this->env->relativeUrls, $this->env->precision, $this->env->debug, $this->env->dumpLineNumbers, $this->env->canShortenColors, $this->env->ieCompat, $this->env->strictMath, $this->env->strictUnits)));
$rebuild = true;
if ($this->cache->has($cacheKey)) {
$rebuild = false;
list($css, $importedFiles) = $this->cache->get($cacheKey);
// we need to check if the file has been modified
foreach ($importedFiles as $importedFileArray) {
list($lastModifiedBefore, $path, $currentFileInfo) = $importedFileArray;
$lastModified = $this->importer->getLastModified($path, $currentFileInfo);
if ($lastModifiedBefore != $lastModified) {
$rebuild = true;
// no need to continue, we will rebuild the CSS
break;
}
}
}
if ($rebuild) {
$css = parent::toCSS($ruleset, $variables);
// what have been imported?
$importedFiles = array();
foreach ($this->importer->getImportedFiles() as $importedFile) {
// we need to save original path, last modified timestamp and currentFileInfo object
// see ILess_Importer::setImportedFile()
$importedFiles[] = array($importedFile[0]->getLastModified(), $importedFile[1], $importedFile[2]);
}
$this->cache->set($cacheKey, array($css, $importedFiles));
}
return $this->filter($css);
}
/**
* Does the import
*
* @param ILess_ImportedFile $file The imported file
* @param string $path The original path
* @param ILess_FileInfo $currentFileInfo Current file info
* @param array $importOptions Import options
* @param boolean $fromCache Is the imported file coming from cache?
* @return array
*/
protected function doImport(ILess_ImportedFile $file, $path, ILess_FileInfo $currentFileInfo, array $importOptions = array(), $fromCache = false)
{
$newEnv = ILess_Environment::createCopy($this->env, $this->env->frames);
$newFileInfo = clone $currentFileInfo;
if ($this->env->relativeUrls) {
// Pass on an updated rootPath if path of imported file is relative and file
// is in a (sub|sup) directory
//
// Examples:
// - If path of imported file is 'module/nav/nav.less' and rootPath is 'less/',
// then rootPath should become 'less/module/nav/'
// - If path of imported file is '../mixins.less' and rootPath is 'less/',
// then rootPath should become 'less/../'
if (!ILess_Util::isPathAbsolute($path) && ($lastSlash = strrpos($path, '/')) !== false) {
$relativeSubDirectory = substr($path, 0, $lastSlash + 1);
$newFileInfo->rootPath = $newFileInfo->rootPath . $relativeSubDirectory;
}
}
// we need to clone here, to prevent modification of node current info object
$newEnv->currentFileInfo = $newFileInfo;
$newEnv->processImports = false;
if ($currentFileInfo->reference || isset($importOptions['reference']) && $importOptions['reference']) {
$newEnv->currentFileInfo->reference = true;
}
$key = $file->getPath();
$error = $root = null;
$alreadyImported = false;
// check for already imported file
if (isset($this->importedFiles[$key])) {
$alreadyImported = true;
} elseif (!$file->getRuleset()) {
$parser = new ILess_Parser_Core($newEnv, $this);
try {
// we do not parse the root but load the file as is
if (isset($importOptions['inline']) && $importOptions['inline']) {
$root = $file->getContent();
} else {
$root = $parser->parseFile($file, true);
$root->root = false;
$root->firstRoot = false;
}
$file->setRuleset($root);
// we need to catch parse exceptions
} catch (ILess_Exception_Parser $e) {
// rethrow
throw $e;
} catch (Exception $error) {
// FIXME: what other exceptions are allowed here?
$file->setError($error);
}
$this->setImportedFile($key, $file, $path, $currentFileInfo);
} else {
$this->setImportedFile($key, $file, $path, $currentFileInfo);
}
if ($fromCache) {
$ruleset = $this->importedFiles[$key][0]->getRuleset();
if ($ruleset instanceof ILess_Node) {
// FIXME: this is a workaround for reference and import one issues
// when taken cache
$this->updateReferenceInCurrentFileInfo($ruleset, $newEnv->currentFileInfo->reference);
}
}
return array($alreadyImported, $this->importedFiles[$key][0]);
}
public function testParseMedia($string)
{
$this->setStringToBeParsed($string);
return parent::parseMedia();
}