/// <summary>
/// Resets the engine to offset. Clears all cached engines after the given offset.
/// </summary>
public void ResetEngineToPosition(int lineNumber)
{
// We are already there
if (currentEngine.LineNumber <= lineNumber)
{
return;
}
bool gotCachedEngine = false;
while (cachedEngines.Count > 0)
{
var topEngine = cachedEngines.Peek();
if (topEngine.LineNumber <= lineNumber)
{
currentEngine = topEngine.Clone();
gotCachedEngine = true;
break;
}
else
{
cachedEngines.Pop();
}
}
if (!gotCachedEngine)
{
currentEngine.Reset();
}
}
/// <summary>
/// Creates a new CacheIndentEngine instance from the given prototype.
/// </summary>
/// <param name="prototype">
/// A CacheIndentEngine instance.
/// </param>
public CacheIndentEngine(CacheIndentEngine prototype)
{
currentEngine = prototype.currentEngine.Clone();
}
/// <summary>
/// Creates a new CacheIndentEngine instance.
/// </summary>
/// <param name="decoratedEngine">
/// An instance of <see cref="IDocumentIndentEngine"/> to which the
/// logic for indentation will be delegated.
/// </param>
/// <param name="cacheRate">
/// The number of lines between caching.
/// </param>
public CacheIndentEngine(IDocumentIndentEngine decoratedEngine, int cacheRate = 50)
{
this.cacheRate = cacheRate;
currentEngine = decoratedEngine;
}
