public static ImmutableArray <byte> GetSourceLinkBlob(this MetadataReader reader)
{
return((from handle in reader.CustomDebugInformation
let cdi = reader.GetCustomDebugInformation(handle)
where reader.GetGuid(cdi.Kind) == PortableCustomDebugInfoKinds.SourceLink
select reader.GetBlobContent(cdi.Value)).Single());
}
private static RuntimeAssemblyName CreateRuntimeAssemblyNameFromMetadata(
MetadataReader reader,
StringHandle name,
Version version,
StringHandle culture,
BlobHandle publicKeyOrToken,
AssemblyFlags assemblyFlags)
{
AssemblyNameFlags assemblyNameFlags = AssemblyNameFlags.None;
if (0 != (assemblyFlags & AssemblyFlags.PublicKey))
{
assemblyNameFlags |= AssemblyNameFlags.PublicKey;
}
if (0 != (assemblyFlags & AssemblyFlags.Retargetable))
{
assemblyNameFlags |= AssemblyNameFlags.Retargetable;
}
int contentType = ((int)assemblyFlags) & 0x00000E00;
assemblyNameFlags |= (AssemblyNameFlags)contentType;
return(new RuntimeAssemblyName(
name.GetString(reader),
version,
culture.GetString(reader),
assemblyNameFlags,
reader.GetBlobContent(publicKeyOrToken).ToArray()
));
}
private static AssemblyIdentity ReadAssemblyIdentity(MetadataReader metadataReader)
{
var assemblyDefinition = metadataReader.GetAssemblyDefinition();
string name = metadataReader.GetString(assemblyDefinition.Name);
Version version = assemblyDefinition.Version;
string cultureName = metadataReader.GetString(assemblyDefinition.Culture);
ImmutableArray <byte> publicKeyOrToken = metadataReader.GetBlobContent(assemblyDefinition.PublicKey);
AssemblyFlags flags = assemblyDefinition.Flags;
bool hasPublicKey = (flags & AssemblyFlags.PublicKey) != 0;
return(new AssemblyIdentity(name, version, cultureName, publicKeyOrToken, hasPublicKey: hasPublicKey));
}
private Mapping <AssemblyReferenceHandle> MapAssemblyReferenceImpl(AssemblyReferenceHandle handle)
{
AssemblyReference assemblyReference = _sourceMetadata.GetAssemblyReference(handle);
string name = _sourceMetadata.GetString(assemblyReference.Name);
string culture = _sourceMetadata.GetString(assemblyReference.Culture);
ImmutableArray <byte> publicKeyOrToken = _sourceMetadata.GetBlobContent(assemblyReference.PublicKeyOrToken);
foreach (var targetHandle in _targetMetadata.AssemblyReferences)
{
AssemblyReference target = _targetMetadata.GetAssemblyReference(targetHandle);
if (!_targetMetadata.StringComparer.Equals(target.Name, name))
{
continue;
}
if (!_targetMetadata.StringComparer.Equals(target.Culture, culture))
{
continue;
}
if (!publicKeyOrToken.IsDefaultOrEmpty)
{
if (target.Version != assemblyReference.Version)
{
continue;
}
ImmutableArray <byte> targetPublicKeyOrToken = _targetMetadata.GetBlobContent(target.PublicKeyOrToken);
if (!targetPublicKeyOrToken.SequenceEqual(targetPublicKeyOrToken))
{
continue;
}
}
return(new Mapping <AssemblyReferenceHandle>(targetHandle));
}
return(new Mapping <AssemblyReferenceHandle>());
}
private static RuntimeAssemblyName CreateRuntimeAssemblyNameFromMetadata(
MetadataReader reader,
StringHandle name,
Version version,
StringHandle culture,
BlobHandle publicKeyOrToken,
AssemblyFlags assemblyFlags)
{
AssemblyNameFlags assemblyNameFlags = AssemblyNameFlags.None;
if (0 != (assemblyFlags & AssemblyFlags.PublicKey))
{
assemblyNameFlags |= AssemblyNameFlags.PublicKey;
}
if (0 != (assemblyFlags & AssemblyFlags.Retargetable))
{
assemblyNameFlags |= AssemblyNameFlags.Retargetable;
}
int contentType = ((int)assemblyFlags) & 0x00000E00;
assemblyNameFlags |= (AssemblyNameFlags)contentType;
byte[] publicKeyOrTokenByteArray;
if (!publicKeyOrToken.IsNil)
{
ImmutableArray <byte> publicKeyOrTokenBlob = reader.GetBlobContent(publicKeyOrToken);
publicKeyOrTokenByteArray = new byte[publicKeyOrTokenBlob.Length];
publicKeyOrTokenBlob.CopyTo(publicKeyOrTokenByteArray);
}
else
{
publicKeyOrTokenByteArray = Array.Empty <byte>();
}
string cultureName = culture.GetString(reader);
if (!String.IsNullOrEmpty(cultureName))
{
// Canonicalize spelling and force a CultureNotFoundException if not a valid culture
CultureInfo cultureInfo = CultureInfo.GetCultureInfo(cultureName);
cultureName = cultureInfo.Name;
}
return(new RuntimeAssemblyName(
name.GetString(reader),
version,
cultureName,
assemblyNameFlags,
publicKeyOrTokenByteArray
));
}
public static unsafe EditAndContinueMethodDebugInformation GetEncMethodDebugInfo(
this ISymUnmanagedReader3 symReader,
MethodDefinitionHandle handle
)
{
const int S_OK = 0;
if (symReader is ISymUnmanagedReader4 symReader4)
{
int hr = symReader4.GetPortableDebugMetadata(out byte *metadata, out int size);
Marshal.ThrowExceptionForHR(hr);
if (hr == S_OK)
{
var pdbReader = new MetadataReader(metadata, size);
ImmutableArray <byte> GetCdiBytes(Guid kind) =>
TryGetCustomDebugInformation(pdbReader, handle, kind, out var info)
? pdbReader.GetBlobContent(info.Value)
: default(ImmutableArray <byte>);
return(EditAndContinueMethodDebugInformation.Create(
compressedSlotMap: GetCdiBytes(
PortableCustomDebugInfoKinds.EncLocalSlotMap
),
compressedLambdaMap: GetCdiBytes(
PortableCustomDebugInfoKinds.EncLambdaAndClosureMap
)
));
}
}
var cdi = CustomDebugInfoUtilities.GetCustomDebugInfoBytes(
symReader,
handle,
methodVersion: 1
);
if (cdi == null)
{
return(EditAndContinueMethodDebugInformation.Create(
default(ImmutableArray <byte>),
default(ImmutableArray <byte>)
));
}
return(GetEncMethodDebugInfo(cdi));
}
internal static string GetAssemblyDisplayName(MetadataReader reader, AssemblyReference assemblyRef)
{
string nameStr = reader.GetString(assemblyRef.Name);
string cultureName = assemblyRef.Culture.IsNil ? "" : reader.GetString(assemblyRef.Culture);
ImmutableArray <byte> publicKeyOrToken = reader.GetBlobContent(assemblyRef.PublicKeyOrToken);
bool hasPublicKey = (assemblyRef.Flags & AssemblyFlags.PublicKey) != 0;
return(BuildDisplayName(
name: nameStr,
version: assemblyRef.Version,
cultureName: cultureName,
publicKeyOrToken: publicKeyOrToken,
hasPublicKey: hasPublicKey,
isRetargetable: (assemblyRef.Flags & AssemblyFlags.Retargetable) != 0,
contentType: (AssemblyContentType)((int)(assemblyRef.Flags & AssemblyFlags.ContentTypeMask) >> 9)));
}
private static RuntimeAssemblyName CreateRuntimeAssemblyNameFromMetadata(
MetadataReader reader,
StringHandle name,
Version version,
StringHandle culture,
BlobHandle publicKeyOrToken,
AssemblyFlags assemblyFlags)
{
AssemblyNameFlags assemblyNameFlags = AssemblyNameFlags.None;
if (0 != (assemblyFlags & AssemblyFlags.PublicKey))
{
assemblyNameFlags |= AssemblyNameFlags.PublicKey;
}
if (0 != (assemblyFlags & AssemblyFlags.Retargetable))
{
assemblyNameFlags |= AssemblyNameFlags.Retargetable;
}
int contentType = ((int)assemblyFlags) & 0x00000E00;
assemblyNameFlags |= (AssemblyNameFlags)contentType;
byte[] publicKeyOrTokenByteArray;
if (!publicKeyOrToken.IsNil)
{
ImmutableArray <byte> publicKeyOrTokenBlob = reader.GetBlobContent(publicKeyOrToken);
publicKeyOrTokenByteArray = new byte[publicKeyOrTokenBlob.Length];
publicKeyOrTokenBlob.CopyTo(publicKeyOrTokenByteArray);
}
else
{
publicKeyOrTokenByteArray = Array.Empty <byte>();
}
return(new RuntimeAssemblyName(
name.GetString(reader),
version,
culture.GetString(reader),
assemblyNameFlags,
publicKeyOrTokenByteArray
));
}
private static ImmutableArray <AssemblyIdentity> ReadReferences(MetadataReader metadataReader)
{
var builder = ImmutableArray.CreateBuilder <AssemblyIdentity>();
foreach (var referenceHandle in metadataReader.AssemblyReferences)
{
var reference = metadataReader.GetAssemblyReference(referenceHandle);
string refname = metadataReader.GetString(reference.Name);
Version refversion = reference.Version;
string refcultureName = metadataReader.GetString(reference.Culture);
ImmutableArray <byte> refpublicKeyOrToken = metadataReader.GetBlobContent(reference.PublicKeyOrToken);
AssemblyFlags refflags = reference.Flags;
bool refhasPublicKey = (refflags & AssemblyFlags.PublicKey) != 0;
builder.Add(new AssemblyIdentity(refname, refversion, refcultureName, refpublicKeyOrToken, hasPublicKey: refhasPublicKey));
}
return(builder.ToImmutable());
}
public ImmutableArray <SourceDocument> FindSourceDocuments(ISymbol symbol)
{
var documentHandles = SymbolSourceDocumentFinder.FindDocumentHandles(symbol, _dllReader, _pdbReader);
using var _ = ArrayBuilder <SourceDocument> .GetInstance(out var sourceDocuments);
foreach (var handle in documentHandles)
{
var document = _pdbReader.GetDocument(handle);
var filePath = _pdbReader.GetString(document.Name);
var hashAlgorithmGuid = _pdbReader.GetGuid(document.HashAlgorithm);
var hashAlgorithm = SourceHashAlgorithms.GetSourceHashAlgorithm(hashAlgorithmGuid);
var checksum = _pdbReader.GetBlobContent(document.Hash);
var embeddedText = TryGetEmbeddedSourceText(handle);
sourceDocuments.Add(new SourceDocument(filePath, hashAlgorithm, checksum, embeddedText));
}
return(sourceDocuments.ToImmutable());
}
private static AssemblyIdentity CreateAssemblyIdentity(
MetadataReader reader,
Version version,
AssemblyFlags flags,
BlobHandle publicKey,
StringHandle name,
StringHandle culture,
bool isReference)
{
var publicKeyOrToken = reader.GetBlobContent(publicKey);
bool hasPublicKey;
if (isReference)
{
hasPublicKey = (flags & AssemblyFlags.PublicKey) != 0;
}
else
{
// Assembly definitions never contain a public key token, they only can have a full key or nothing,
// so the flag AssemblyFlags.PublicKey does not make sense for them and is ignored.
// See Ecma-335, Partition II Metadata, 22.2 "Assembly : 0x20".
// This also corresponds to the behavior of the native C# compiler and sn.exe tool.
hasPublicKey = !publicKeyOrToken.IsEmpty;
}
if (publicKeyOrToken.IsEmpty)
{
publicKeyOrToken = default;
}
return(new AssemblyIdentity(
name: reader.GetString(name),
version: version,
cultureName: culture.IsNil ? null : reader.GetString(culture),
publicKeyOrToken: publicKeyOrToken,
hasPublicKey: hasPublicKey,
isRetargetable: (flags & AssemblyFlags.Retargetable) != 0,
contentType: (AssemblyContentType)((int)(flags & AssemblyFlags.ContentTypeMask) >> 9)));
}
/// <exception cref="BadImageFormatException">An exception from metadata reader.</exception>
private static AssemblyIdentity CreateAssemblyIdentityOrThrow(
this MetadataReader reader,
Version version,
AssemblyFlags flags,
BlobHandle publicKey,
StringHandle name,
StringHandle culture,
bool isReference)
{
string nameStr = reader.GetString(name);
if (!MetadataHelpers.IsValidMetadataIdentifier(nameStr))
{
throw new BadImageFormatException(string.Format(CodeAnalysisResources.InvalidAssemblyName, nameStr));
}
string cultureName = culture.IsNil ? null : reader.GetString(culture);
if (cultureName != null && !MetadataHelpers.IsValidMetadataIdentifier(cultureName))
{
throw new BadImageFormatException(string.Format(CodeAnalysisResources.InvalidCultureName, cultureName));
}
ImmutableArray <byte> publicKeyOrToken = reader.GetBlobContent(publicKey);
bool hasPublicKey;
if (isReference)
{
hasPublicKey = (flags & AssemblyFlags.PublicKey) != 0;
if (hasPublicKey)
{
if (!MetadataHelpers.IsValidPublicKey(publicKeyOrToken))
{
throw new BadImageFormatException(CodeAnalysisResources.InvalidPublicKey);
}
}
else
{
if (!publicKeyOrToken.IsEmpty &&
publicKeyOrToken.Length != AssemblyIdentity.PublicKeyTokenSize)
{
throw new BadImageFormatException(CodeAnalysisResources.InvalidPublicKeyToken);
}
}
}
else
{
// Assembly definitions never contain a public key token, they only can have a full key or nothing,
// so the flag AssemblyFlags.PublicKey does not make sense for them and is ignored.
// See Ecma-335, Partition II Metadata, 22.2 "Assembly : 0x20".
// This also corresponds to the behavior of the native C# compiler and sn.exe tool.
hasPublicKey = !publicKeyOrToken.IsEmpty;
if (hasPublicKey && !MetadataHelpers.IsValidPublicKey(publicKeyOrToken))
{
throw new BadImageFormatException(CodeAnalysisResources.InvalidPublicKey);
}
}
if (publicKeyOrToken.IsEmpty)
{
publicKeyOrToken = default(ImmutableArray <byte>);
}
return(new AssemblyIdentity(
name: nameStr,
version: version,
cultureName: cultureName,
publicKeyOrToken: publicKeyOrToken,
hasPublicKey: hasPublicKey,
isRetargetable: (flags & AssemblyFlags.Retargetable) != 0,
contentType: (AssemblyContentType)((int)(flags & AssemblyFlags.ContentTypeMask) >> 9),
noThrow: true));
}
private ImmutableArray <byte> GetCdiBytes(MethodDefinitionHandle methodHandle, Guid kind) => TryGetCustomDebugInformation(_pdbReader, methodHandle, kind, out var cdi) ? _pdbReader.GetBlobContent(cdi.Value) : default;
public static ImmutableArray <byte> GetBlobContent(this BlobHandle handle, MetadataReader reader) => reader.GetBlobContent(handle);
