/**
* Returns an array of split points from the given template file.
*
* @param string $template_file
* @return array
*/
public function findSplitPoints($template_file)
{
$inline_blocks = 0;
$source = new \Twig_Source(file_get_contents($template_file), $template_file);
$stream = $this->twig->tokenize($source);
$points = [];
while (!$stream->isEOF() && ($token = $stream->next())) {
// {{ webpack_asset(...) }}
if ($token->test(\Twig_Token::NAME_TYPE, 'webpack_asset')) {
// We found the webpack function!
$asset = $this->getAssetFromStream($template_file, $stream);
$points[$asset] = $this->resolveAssetPath($asset, $template_file, $token);
}
// {% webpack_javascripts %} and {% webpack_stylesheets %}
if ($token->test(\Twig_Token::BLOCK_START_TYPE) && $stream->getCurrent()->test(WebpackTokenParser::TAG_NAME)) {
$stream->next();
if ($stream->getCurrent()->getValue() === 'inline') {
$stream->next();
$token = $stream->next();
$file_name = TwigParser::hashInlineFileName($template_file, $inline_blocks);
// Are we dealing with a custom extension? If not, fallback to javascript.
$extension = 'js';
// Default
if ($token->test(\Twig_Token::NAME_TYPE)) {
$extension = $token->getValue();
$stream->next();
}
file_put_contents($this->cache_dir . '/' . $file_name . '.' . $extension, $this->stripScript($stream->getCurrent()->getValue()));
$asset = $file_name . '.' . $extension;
$id = 'cache/' . $asset;
$points[$id] = $this->resolveAssetPath($this->cache_dir . '/' . $asset, $template_file, $token);
$inline_blocks++;
} else {
$stream->next();
while (!$stream->isEOF() && !$stream->getCurrent()->test(\Twig_Token::BLOCK_END_TYPE)) {
$asset = $stream->expect(\Twig_Token::STRING_TYPE)->getValue();
$points[$asset] = $this->resolveAssetPath($asset, $template_file, $token);
}
}
}
}
return $points;
}
/**
* @param \Twig_TokenStream $stream
* @param int $lineno
* @return WebpackInlineNode
* @throws \Twig_Error_Syntax
*/
private function parseInline(\Twig_TokenStream $stream, $lineno)
{
if ($stream->test(\Twig_Token::NAME_TYPE)) {
$stream->next();
}
$stream->expect(\Twig_Token::BLOCK_END_TYPE);
$this->parser->subparse(function ($token) {
return $token->test(['end' . $this->getTag()]);
}, true);
$stream->expect(\Twig_Token::BLOCK_END_TYPE);
$file = $this->parser->getEnvironment()->getLoader()->getCacheKey($stream->getFilename());
if (!isset($this->inline_blocks[$file])) {
$this->inline_blocks[$file] = 0;
}
$file_name = TwigParser::hashInlineFileName($file, $this->inline_blocks[$file]) . '.js';
$assets = $this->extension->webpackAsset('cache.' . $file_name);
$this->inline_blocks[$file]++;
return new WebpackInlineNode(['js_file' => $assets['js'], 'css_file' => $assets['css']], $lineno, $this->getTag());
}
