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<?php |
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declare(strict_types=1); |
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namespace Webrouse\AssetMacro; |
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use Latte; |
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use Latte\Macros\MacroSet; |
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use Nette\Caching\Cache; |
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use Nette\Caching\IStorage; |
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use Nette\Utils\Strings; |
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use Nette\Utils\Validators; |
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class AssetMacro extends MacroSet |
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{ |
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// Name of the Latte provider for manifest service |
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public const MANIFEST_PROVIDER = 'assetMacroManifestService'; |
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public static function install(Latte\Compiler $compiler): void |
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{ |
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$me = new self($compiler); |
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$me->addMacro('asset', [$me, 'macroAsset']); |
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} |
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public function macroAsset(Latte\MacroNode $node, Latte\PhpWriter $writer): string |
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{ |
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if ($node->modifiers && $node->modifiers !== '|noescape') { |
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throw new Latte\CompileException('Only \'noescape\' modifier is allowed in ' . $node->getNotation()); |
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} |
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// Validate arguments count |
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$args = trim($node->args); |
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$argsCount = $args === '' ? 0 : (substr_count($args, ',') + 1); |
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if ($argsCount === 0) { |
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throw new Latte\CompileException('Asset macro requires at least one argument.'); |
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} elseif ($argsCount > 4) { |
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throw new Latte\CompileException('Asset macro must have no more than 4 arguments.'); |
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} |
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return $writer->write( |
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'echo ' . ($node->modifiers !== '|noescape' ? '%escape' : '') . |
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'(' . self::class . '::getOutput(' . |
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'%node.word, ' . |
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'%node.array, ' . |
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'$baseUrl ?? null, ' . |
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'$this->global->' . self::MANIFEST_PROVIDER . ', ' . |
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'$this->global->cacheStorage ?? null))'); |
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} |
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public static function getOutput(string $asset, array $args, ?string $baseUrl, ManifestService $manifestService, IStorage $storage = null): string |
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{ |
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$config = $manifestService->getConfig(); |
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// Cache |
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$cacheKey = md5(implode(';', [$asset, serialize($args), $config->getHash(), $baseUrl ?? ''])); |
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$cache = ($config->isCacheEnabled() && $storage) ? new Cache($storage, 'Webrouse.AssetMacro') : null; |
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// Load cached value |
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if ($cache && ($output = $cache->load($cacheKey)) !== null) { |
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return (string) $output; |
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} |
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// Generate output and store value to cache |
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$output = self::generateOutput($asset, $args, $config, $manifestService); |
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if ($cache) { |
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$cache->save($cacheKey, $output); |
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} |
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return $output; |
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} |
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public static function generateOutput(string $asset, array $args, Config $config, ManifestService $manifestService): ?string |
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{ |
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[$format, $needed, $absolute] = self::processArguments($asset, $args, $config); |
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return $manifestService->format($asset, $needed, $format, $absolute); |
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} |
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private static function processArguments(string $asset, array $args, Config $config): array |
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{ |
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$format = $args['format'] ?? ($args[0] ?? $config->getDefaultFormat()); |
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$needed = $args['need'] ?? ($args[1] ?? true); |
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$absolute = $args['absolute'] ?? ($args[2] ?? false); |
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Validators::assert($asset, 'string', 'path'); |
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Validators::assert($format, 'string', 'format'); |
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Validators::assert($needed, 'bool', 'need'); |
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Validators::assert($needed, 'bool', 'absolute'); |
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if (Strings::startsWith($asset, '//')) { |
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$absolute = true; |
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} |
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return [$format, $needed, $absolute]; |
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} |
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} |
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webrouse /
n-asset-macro
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This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.