internal static bool TryGetAnalyzerForFile(TokenStreamReader reader, out IAnalyzer analyzer)
{
var best = _analyzers.FirstOrDefault(_ => _.CanAnalyze(reader.Rewind()));
if (best != null)
{
analyzer = best;
return true;
}
analyzer = null;
return false;
}
IVbModule IAnalyzer.Analyze(TokenStreamReader reader)
{
var attributes = AnalyzerTools.GetAttributes(reader).ToDictionary(_ => _.Name);
GlobalModule mod = new GlobalModule();
mod.Visibility = MemberVisibility.Default;
mod.Name = attributes[AnalyzerConstants.AttributeName_Name].Value;
foreach (IVbAttribute attribute in attributes.Values)
{
mod.AddMember(attribute);
}
foreach (IVbField field in AnalyzerTools.GetFields(reader.Rewind()))
{
mod.AddMember(field);
}
foreach (IVbMethod method in AnalyzerTools.GetMethods(reader.Rewind()))
{
mod.AddMember(method);
}
return mod;
}
/// <summary>
/// Reads and reflects the given VB Classic text file into a usable form.
/// </summary>
/// <param name="partitionedFile">An instance of <see cref="VbPartitionedFile"/> representing the VB Classic module to reflect.</param>
/// <returns></returns>
/// <exception cref="ArgumentNullException"><paramref name="partitionedFile"/> was null.</exception>
/// <exception cref="InvalidOperationException">There was no analyzer considered fitting for the underlying file.</exception>
public static IVbModule GetReflectedModule(VbPartitionedFile partitionedFile)
{
if (partitionedFile == null)
{
throw new ArgumentNullException("partitionedFile");
}
if (Tokenizer == null)
{
throw new InvalidOperationException("No tokenizer defined for analyzing the file!");
}
IReadOnlyList<IToken> tokens = Tokenizer.GetTokens(partitionedFile.GetMergedContent());
TokenStreamReader reader = new TokenStreamReader(tokens);
IAnalyzer analyzer = null;
if (!AnalyzerFactory.TryGetAnalyzerForFile(reader, out analyzer))
{
// TODO: Dedicated exception for this.
throw new InvalidOperationException("Could not analyze the given file!");
}
reader.Rewind();
return analyzer.Analyze(reader);
}
