/// <summary>
/// Get the next interchange chunk to be processor.
/// </summary>
/// <param name="processor">Interchange format processor that contains the interchange sources.</param>
/// <returns></returns>
protected InterchangeChunk GetNextChunk(InterchangeFormatProcessor processor)
{
if (processor == null)
{
throw new ArgumentNullException();
}
return(processor.GetNextChunk());
}
/// <summary>
/// Report that an error has occurred during parsing of the source code.
/// </summary>
/// <param name="processor">Interchange format processor whose error-sink is used to report the error.</param>
/// <param name="parseErrorMessage">Error message.</param>
protected void ReportError(InterchangeFormatProcessor processor, string parseErrorMessage)
{
if (processor == null)
{
throw new ArgumentNullException();
}
if (processor.ErrorSink != null)
{
processor.ErrorSink.AddInterchangeError(processor.SourcePosition, processor.SourcePosition, parseErrorMessage);
}
}
/// <summary>
/// Process a given interchange element (chunk).
/// </summary>
/// <param name="processor"></param>
/// <param name="node">Last node that was parsed. This is used for annotations.</param>
/// <param name="chunk">Interchange chunk to be processed.</param>
/// <returns>Returns the new interchange parse node (or null in case of error).</returns>
protected virtual InterchangeUnitNode ProcessInterchangeElement(InterchangeFormatProcessor processor, InterchangeUnitNode node, InterchangeChunk chunk)
{
InterchangeFormatParser parser = this.GetInterchangeParser(chunk);
InterchangeElementNode nodeForAnnotation = (node == null) ? null : node.GetAnnotatedNode();
node = parser.ParseInterchangeElement(nodeForAnnotation);
if (node == null)
{
return(null);
}
return(node.FileIn(processor, chunk, chunk));
}
/// <summary>
/// Retrieve the next interchange chunk from the processor and parse it as an initializer.
/// </summary>
/// <param name="processor">Interchange format processor that can provide the interchange chunk for parsing.</param>
/// <param name="sourceCodeService"></param>
/// <remarks>
/// The parser used here is capable of parsing interchange chunks containing initializers that follow the
/// interchange version standard that this version service is supporting.
/// </remarks>
/// <returns>InitializerNode representing the parsed initializer source.</returns>
protected internal virtual InitializerNode ParseInitializer(InterchangeFormatProcessor processor, out ISourceCodeReferenceService sourceCodeService)
{
InterchangeChunk chunk = this.GetNextChunk(processor);
sourceCodeService = chunk;
if (chunk == null)
{
// Must have an interchange element that contains <initializer definition>.
this.ReportError(processor, "Expected initializer definition.");
return(null);
}
Parser parser = this.GetFunctionParser();
parser.ErrorSink = chunk;
return(parser.ParseInitializer(new StringReader(chunk.SourceChunk)));
}
/// <summary>
/// Process the interchange elements (chunks) provided by the given interchange format processor.
/// </summary>
/// <param name="processor">Interchange format processor that can provide interchange chunks for processing.</param>
protected internal virtual void ProcessInterchangeElements(InterchangeFormatProcessor processor)
{
InterchangeChunk chunk = this.GetNextChunk(processor);
if (chunk == null)
{
// Must have at least ONE interchange unit.
this.ReportError(processor, InterchangeFormatErrors.ExpectedInterchangeUnit);
return;
}
InterchangeUnitNode node = null;
while (chunk != null)
{
node = this.ProcessInterchangeElement(processor, node, chunk);
chunk = this.GetNextChunk(processor);
}
}
public InterchangeInstallerContext Read(IEnumerable <FileInInformation> fileIns)
{
if (fileIns == null)
{
throw new ArgumentNullException("fileIns");
}
InterchangeInstallerContext installer = this.CreateInstallerContext();
foreach (FileInInformation info in fileIns)
{
using (TextReader souceCodeReader = info.GetTextReader())
{
InterchangeFormatProcessor processor = new InterchangeFormatProcessor(info, souceCodeReader, installer, this.VersionServicesMap);
processor.ProcessInterchangeFile();
}
}
return(installer);
}