Pennington.MonorailCss.CssClassCollector

namespace Pennington.MonorailCss;

/// Thread-safe collector for CSS class names discovered during request processing. Classes accumulate across requests and are never cleared at runtime — stale classes are harmless (MonorailCSS ignores unknown tokens) and are removed on the next build.
public class CssClassCollector
{
    /// Registers CSS class names for the given URL.
    
public void AddClasses(string url, IEnumerable<string> classes);

    /// Acquires the write lock for adding classes.
    
public void BeginProcessing();

    /// Releases the write lock.
    
public void EndProcessing();

    /// Returns a snapshot of all collected CSS class names.
    
public IReadOnlyCollection<string> GetClasses();
}