public static async Task <SyntaxTreeIndex?> LoadAsync(
IChecksummedPersistentStorageService storageService, DocumentKey documentKey, Checksum?checksum, StringTable stringTable, CancellationToken cancellationToken)
{
try
{
var storage = await storageService.GetStorageAsync(documentKey.Project.Solution, cancellationToken).ConfigureAwait(false);
await using var _ = storage.ConfigureAwait(false);
// attempt to load from persisted state
using var stream = await storage.ReadStreamAsync(documentKey, PersistenceName, checksum, cancellationToken).ConfigureAwait(false);
using var reader = ObjectReader.TryGetReader(stream, cancellationToken: cancellationToken);
if (reader != null)
{
return(ReadFrom(stringTable, reader, checksum));
}
}
catch (Exception e) when(IOUtilities.IsNormalIOException(e))
{
// Storage APIs can throw arbitrary exceptions.
}
return(null);
}
public static Task <TopLevelSyntaxTreeIndex?> LoadAsync(
IChecksummedPersistentStorageService storageService, DocumentKey documentKey, Checksum?checksum, StringTable stringTable, CancellationToken cancellationToken)
{
return(LoadAsync(storageService, documentKey, checksum, stringTable, ReadIndex, cancellationToken));
}
