/// <summary>
/// Creates a new <see cref="CodeScript"/> with the <see cref="CodeServiceFactory"/> changed.
/// </summary>
public CodeScript WithFactory(CodeServiceFactory factory)
{
if (factory != this.Factory)
{
return(CreateScript(this.Text, factory, null));
}
else
{
return(this);
}
}
private CodeScript(
string text,
List <int> lineStarts,
List <CodeBlock> blocks,
CodeServiceFactory factory)
{
this.Text = text;
this.lineStarts = lineStarts;
this.blocks = blocks;
this.Factory = factory;
}
/// <summary>
/// Combine an additional factory with this factory.
/// </summary>
public virtual CodeServiceFactory WithFactory(CodeServiceFactory factory)
{
if (factory is AggregateCodeServiceFactory af)
{
return(af.WithFactory(this));
}
else if (factory.GetType() == this.GetType())
{
// specified factory is a replacement for this factory
return(factory);
}
else
{
return(new AggregateCodeServiceFactory(new[] { this }).WithFactory(factory));
}
}
/// <summary>
/// Creates a <see cref="CodeScript"/> from the text
/// </summary>
private static CodeScript CreateScript(
string text,
CodeServiceFactory factory,
IEnumerable <CodeBlock> existingBlocks = null)
{
var lineStarts = new List <int>();
var blockStarts = new List <int>();
GetStarts(text, lineStarts, blockStarts);
var existingBlockMap = existingBlocks != null
? existingBlocks.ToTextKeyedDictionary(b => b.Text, b => b)
: null;
var blocks = new List <CodeBlock>();
for (int i = 0; i < blockStarts.Count; i++)
{
var start = blockStarts[i];
var length = i + 1 < blockStarts.Count ? blockStarts[i + 1] - start : text.Length - start;
if (existingBlockMap != null && existingBlockMap.TryGetValue(text, start, length, out var block))
{
block = block.WithStart(start);
}
else
{
var blockText = text.Substring(start, length);
if (!factory.TryGetCodeService(blockText, out var service))
{
service = new UnknownCodeService(blockText);
}
block = new CodeBlock(start, service);
}
blocks.Add(block);
}
return(new CodeScript(text, lineStarts, blocks, factory));
}
public override CodeServiceFactory WithFactory(CodeServiceFactory factory)
{
// if not changed, then return same aggregate
if (_factories.Contains(factory))
{
return(this);
}
var list = new List <CodeServiceFactory>(_factories);
var index = list.FindIndex(f => f.GetType() == factory.GetType());
if (index >= 0)
{
list[index] = factory;
}
else
{
list.Add(factory);
}
return(new AggregateCodeServiceFactory(list.ToReadOnly()));
}
/// <summary>
/// Creates a new <see cref="CodeScript"/> with the text and globals changed.
/// </summary>
public CodeScript WithTextAndFactory(string newText, CodeServiceFactory factory)
{
return(WithText(newText).WithFactory(factory));
}
/// <summary>
/// Create a new <see cref="CodeScript"/> from the specified text and a <see cref="CodeServiceFactory"/>
/// </summary>
public static CodeScript From(string text, CodeServiceFactory factory)
{
return(CreateScript(text ?? "", factory));
}
