/// <summary>
/// Resolves a command line metadata reference with the given <paramref name="resolvedFullPath"/> to a <see cref="MetadataReference"/>.
/// </summary>
private static MetadataReference ResolveMetadataFile(
string resolvedFullPath,
MetadataReferenceProperties properties,
MetadataReferenceProvider metadataProvider,
string display,
List <DiagnosticInfo> diagnosticsOpt,
CommonMessageProvider messageProviderOpt)
{
Debug.Assert(resolvedFullPath != null);
Debug.Assert(PathUtilities.IsAbsolute(resolvedFullPath));
Debug.Assert(display != null);
if (diagnosticsOpt == null)
{
return(metadataProvider.GetReference(resolvedFullPath, properties));
}
MetadataReference reference;
Diagnostic diagnostic;
if (PortableExecutableReference.TryGetMetadata(
properties.Kind == MetadataImageKind.Assembly,
messageProviderOpt,
Location.None,
display,
() => metadataProvider.GetReference(resolvedFullPath, properties),
out reference,
out diagnostic))
{
return(reference);
}
diagnosticsOpt.Add(((DiagnosticWithInfo)diagnostic).Info);
return(new UnresolvedMetadataReference(resolvedFullPath, properties));
}
/// <summary>
/// Creates or gets metadata for PE reference.
/// </summary>
/// <remarks>
/// If any of the following exceptions: <see cref="BadImageFormatException"/>, <see cref="FileNotFoundException"/>, <see cref="IOException"/>,
/// are thrown while reading the metadata file, the exception is caught and an appropriate diagnostic stored in <paramref name="diagnostics"/>.
/// </remarks>
private Metadata GetMetadata(PortableExecutableReference peReference, CommonMessageProvider messageProvider, Location location, DiagnosticBag diagnostics)
{
Metadata existingMetadata;
lock (ObservedMetadata)
{
if (TryGetObservedMetadata(peReference, diagnostics, out existingMetadata))
{
return(existingMetadata);
}
}
Metadata newMetadata;
Diagnostic newDiagnostic;
PortableExecutableReference.TryGetMetadata(
peReference.Properties.Kind == MetadataImageKind.Assembly,
messageProvider,
location,
peReference.Display,
peReference.GetMetadata,
out newMetadata,
out newDiagnostic);
lock (ObservedMetadata)
{
if (TryGetObservedMetadata(peReference, diagnostics, out existingMetadata))
{
return(existingMetadata);
}
if (newDiagnostic != null)
{
diagnostics.Add(newDiagnostic);
}
ObservedMetadata.Add(peReference, (MetadataOrDiagnostic)newMetadata ?? newDiagnostic);
return(newMetadata);
}
}