/// <summary>
/// Resolves this command line metadata reference to a <see cref="MetadataReference"/> using given file resolver and metadata provider.
/// </summary>
/// <exception cref="BadImageFormatException">If the PE image format is invalid and <paramref name="diagnosticsOpt"/> is null.</exception>
/// <exception cref="FileNotFoundException">If the Metadata file could not be found and <paramref name="diagnosticsOpt"/> is null.</exception>
/// <exception cref="IOException">If error reading the file from disk and <paramref name="diagnosticsOpt"/> is null.</exception>
/// <remarks>
/// NOTE: Other exceptions, apart from those mentioned above, may be generated by the fileResolver or the metadata provider. These are not handled by this method.
/// </remarks>
/// <param name="fileResolver">The file resolver to use for assembly name and relative path resolution.</param>
/// <param name="metadataProvider">Uses to create metadata references from resolved full paths.</param>
/// <param name="diagnosticsOpt">Optional diagnostics list for storing diagnostics.</param>
/// <param name="messageProviderOpt">Optional <see cref="CommonMessageProvider"/> for generating diagnostics.</param>
/// <returns>Returns resolved metadata reference or <see cref="UnresolvedMetadataReference"/>.</returns>
internal MetadataReference Resolve(FileResolver fileResolver, MetadataReferenceProvider metadataProvider, List <DiagnosticInfo> diagnosticsOpt, CommonMessageProvider messageProviderOpt)
{
Debug.Assert(fileResolver != null);
Debug.Assert(metadataProvider != null);
string path;
if (this.IsAssemblyName)
{
path = fileResolver.ResolveAssemblyName(this.reference);
if (path == null)
{
if (diagnosticsOpt != null)
{
diagnosticsOpt.Add(new DiagnosticInfo(messageProviderOpt, messageProviderOpt.ERR_MetadataFileNotFound, this.reference));
}
return(new UnresolvedMetadataReference(this.reference, this.properties));
}
}
else
{
path = this.reference;
}
// use search paths and base path of the resolver - usually these are the same as the paths stored on the arguments:
string fullPath = fileResolver.ResolveMetadataFileChecked(path, baseFilePath: null);
if (fullPath == null)
{
if (diagnosticsOpt != null)
{
diagnosticsOpt.Add(new DiagnosticInfo(messageProviderOpt, messageProviderOpt.ERR_MetadataFileNotFound, this.reference));
}
return(new UnresolvedMetadataReference(this.reference, this.properties));
}
else
{
return(ResolveMetadataFile(fullPath, this.properties, metadataProvider, this.reference, diagnosticsOpt, messageProviderOpt));
}
}
/// <summary>
/// Resolves this command line analyzer path to a <see cref="IEnumerable{IDiagnosticAnalyzer}"/> using given file resolver.
/// </summary>
/// <param name="fileResolver">The file resolver to use for assembly name and relative path resolution.</param>
/// <param name="diagnosticsOpt">Optional diagnostics list for storing diagnostics.</param>
/// <param name="messageProviderOpt">Optional <see cref="CommonMessageProvider"/> for generating diagnostics.</param>
/// <returns>Returns null if the path is invalid. Otherwise returns the list of analyzer factories from the dll.</returns>
internal IEnumerable <IDiagnosticAnalyzer> Resolve(FileResolver fileResolver, List <DiagnosticInfo> diagnosticsOpt, CommonMessageProvider messageProviderOpt)
{
Debug.Assert(fileResolver != null);
string fullPath = fileResolver.ResolveMetadataFileChecked(this.analyzer, baseFilePath: null);
if (fullPath == null)
{
if (diagnosticsOpt != null)
{
diagnosticsOpt.Add(new DiagnosticInfo(messageProviderOpt, messageProviderOpt.ERR_MetadataFileNotFound, this.analyzer));
}
return(null);
}
else
{
return(ResolveAnalyzers(fullPath, this.analyzer, diagnosticsOpt, messageProviderOpt));
}
}
