private static bool TryGetConstantValue(this ISymUnmanagedConstant constant, out NamedLocalConstant value)
{
value = default(NamedLocalConstant);
int length;
int hresult = constant.GetName(0, out length, null);
SymUnmanagedReaderExtensions.ThrowExceptionForHR(hresult);
Debug.Assert(length > 0);
if (length == 0)
{
return(false);
}
var chars = new char[length];
hresult = constant.GetName(length, out length, chars);
SymUnmanagedReaderExtensions.ThrowExceptionForHR(hresult);
Debug.Assert(chars[length - 1] == 0);
var name = new string(chars, 0, length - 1);
constant.GetSignature(0, out length, null);
Debug.Assert(length > 0);
if (length == 0)
{
return(false);
}
var signature = new byte[length];
constant.GetSignature(length, out length, signature);
object val;
constant.GetValue(out val);
var constantValue = GetConstantValue(signature, val);
value = new NamedLocalConstant(name, signature, constantValue);
return(true);
}
private static ISymUnmanagedReader3 CreateNativeSymReader(Stream pdbStream, object metadataImporter)
{
object symReader = null;
var guid = default(Guid);
if (IntPtr.Size == 4)
{
CreateSymReader32(ref guid, out symReader);
}
else
{
CreateSymReader64(ref guid, out symReader);
}
var reader = (ISymUnmanagedReader3)symReader;
int hr = reader.Initialize(metadataImporter, null, null, new ComStreamWrapper(pdbStream));
SymUnmanagedReaderExtensions.ThrowExceptionForHR(hr);
return(reader);
}
public static ISymUnmanagedReader CreateReader(Stream pdbStream, object metadataImporter)
{
pdbStream.Position = 0;
bool isPortable = pdbStream.ReadByte() == 'B' && pdbStream.ReadByte() == 'S' && pdbStream.ReadByte() == 'J' && pdbStream.ReadByte() == 'B';
pdbStream.Position = 0;
if (isPortable)
{
var binder = new PortablePdb.SymBinder();
ISymUnmanagedReader reader;
int hr = binder.GetReaderFromStream(metadataImporter, new ComStreamWrapper(pdbStream), out reader);
SymUnmanagedReaderExtensions.ThrowExceptionForHR(hr);
return(reader);
}
else
{
return(CreateNativeSymReader(pdbStream, metadataImporter));
}
}
public unsafe static MethodDebugInfo <TTypeSymbol, TLocalSymbol> ReadMethodDebugInfo(
ISymUnmanagedReader symReader,
EESymbolProvider <TTypeSymbol, TLocalSymbol> symbolProviderOpt, // TODO: only null in DTEE case where we looking for default namesapace
int methodToken,
int methodVersion,
int ilOffset,
bool isVisualBasicMethod)
{
// no symbols
if (symReader == null)
{
return(None);
}
var symReader4 = symReader as ISymUnmanagedReader4;
if (symReader4 != null) // TODO: VB Portable PDBs
{
byte *metadata;
int size;
// TODO: version
int hr = symReader4.GetPortableDebugMetadata(out metadata, out size);
SymUnmanagedReaderExtensions.ThrowExceptionForHR(hr);
if (metadata != null)
{
var mdReader = new MetadataReader(metadata, size);
try
{
return(ReadFromPortable(mdReader, methodToken, ilOffset, symbolProviderOpt, isVisualBasicMethod));
}
catch (BadImageFormatException)
{
// bad CDI, ignore
return(None);
}
}
}
var allScopes = ArrayBuilder <ISymUnmanagedScope> .GetInstance();
var containingScopes = ArrayBuilder <ISymUnmanagedScope> .GetInstance();
try
{
ImmutableArray <HoistedLocalScopeRecord> hoistedLocalScopeRecords;
ImmutableArray <ImmutableArray <ImportRecord> > importRecordGroups;
ImmutableArray <ExternAliasRecord> externAliasRecords;
ImmutableDictionary <int, ImmutableArray <bool> > dynamicLocalMap;
ImmutableDictionary <string, ImmutableArray <bool> > dynamicLocalConstantMap;
string defaultNamespaceName;
var symMethod = symReader.GetMethodByVersion(methodToken, methodVersion);
if (symMethod != null)
{
symMethod.GetAllScopes(allScopes, containingScopes, ilOffset, isScopeEndInclusive: isVisualBasicMethod);
}
if (isVisualBasicMethod)
{
ReadVisualBasicImportsDebugInfo(
symReader,
methodToken,
methodVersion,
out importRecordGroups,
out defaultNamespaceName);
hoistedLocalScopeRecords = ImmutableArray <HoistedLocalScopeRecord> .Empty;
externAliasRecords = ImmutableArray <ExternAliasRecord> .Empty;
dynamicLocalMap = null;
dynamicLocalConstantMap = null;
}
else
{
Debug.Assert(symbolProviderOpt != null);
ReadCSharpNativeImportsInfo(
symReader,
symbolProviderOpt,
methodToken,
methodVersion,
out importRecordGroups,
out externAliasRecords);
ReadCSharpNativeCustomDebugInfo(
symReader,
methodToken,
methodVersion,
allScopes,
out hoistedLocalScopeRecords,
out dynamicLocalMap,
out dynamicLocalConstantMap);
defaultNamespaceName = "";
}
var constantsBuilder = ArrayBuilder <TLocalSymbol> .GetInstance();
if (symbolProviderOpt != null) // TODO
{
GetConstants(constantsBuilder, symbolProviderOpt, containingScopes, dynamicLocalConstantMap);
}
var reuseSpan = GetReuseSpan(allScopes, ilOffset, isVisualBasicMethod);
return(new MethodDebugInfo <TTypeSymbol, TLocalSymbol>(
hoistedLocalScopeRecords,
importRecordGroups,
externAliasRecords,
dynamicLocalMap,
defaultNamespaceName,
containingScopes.GetLocalNames(),
constantsBuilder.ToImmutableAndFree(),
reuseSpan));
}
catch (InvalidOperationException)
{
// bad CDI, ignore
return(None);
}
finally
{
allScopes.Free();
containingScopes.Free();
}
}
public unsafe static MethodDebugInfo <TTypeSymbol, TLocalSymbol> ReadMethodDebugInfo(
ISymUnmanagedReader3 symReader,
EESymbolProvider <TTypeSymbol, TLocalSymbol> symbolProviderOpt, // TODO: only null in DTEE case where we looking for default namesapace
int methodToken,
int methodVersion,
int ilOffset,
bool isVisualBasicMethod)
{
// no symbols
if (symReader == null)
{
return(None);
}
if (symReader is ISymUnmanagedReader5 symReader5)
{
int hr = symReader5.GetPortableDebugMetadataByVersion(methodVersion, out byte *metadata, out int size);
SymUnmanagedReaderExtensions.ThrowExceptionForHR(hr);
if (hr == 0)
{
var mdReader = new MetadataReader(metadata, size);
try
{
return(ReadFromPortable(mdReader, methodToken, ilOffset, symbolProviderOpt, isVisualBasicMethod));
}
catch (BadImageFormatException)
{
// bad CDI, ignore
return(None);
}
}
}
var allScopes = ArrayBuilder <ISymUnmanagedScope> .GetInstance();
var containingScopes = ArrayBuilder <ISymUnmanagedScope> .GetInstance();
try
{
var symMethod = symReader.GetMethodByVersion(methodToken, methodVersion);
if (symMethod != null)
{
symMethod.GetAllScopes(allScopes, containingScopes, ilOffset, isScopeEndInclusive: isVisualBasicMethod);
}
ImmutableArray <ImmutableArray <ImportRecord> > importRecordGroups;
ImmutableArray <ExternAliasRecord> externAliasRecords;
string defaultNamespaceName;
if (isVisualBasicMethod)
{
ReadVisualBasicImportsDebugInfo(
symReader,
methodToken,
methodVersion,
out importRecordGroups,
out defaultNamespaceName);
externAliasRecords = ImmutableArray <ExternAliasRecord> .Empty;
}
else
{
Debug.Assert(symbolProviderOpt != null);
ReadCSharpNativeImportsInfo(
symReader,
symbolProviderOpt,
methodToken,
methodVersion,
out importRecordGroups,
out externAliasRecords);
defaultNamespaceName = "";
}
// VB should read hoisted scope information from local variables:
var hoistedLocalScopeRecords = isVisualBasicMethod ?
default(ImmutableArray <HoistedLocalScopeRecord>) :
ImmutableArray <HoistedLocalScopeRecord> .Empty;
ImmutableDictionary <int, ImmutableArray <bool> > dynamicLocalMap = null;
ImmutableDictionary <string, ImmutableArray <bool> > dynamicLocalConstantMap = null;
ImmutableDictionary <int, ImmutableArray <string> > tupleLocalMap = null;
ImmutableDictionary <LocalNameAndScope, ImmutableArray <string> > tupleLocalConstantMap = null;
byte[] customDebugInfo = symReader.GetCustomDebugInfoBytes(methodToken, methodVersion);
if (customDebugInfo != null)
{
if (!isVisualBasicMethod)
{
var customDebugInfoRecord = CustomDebugInfoReader.TryGetCustomDebugInfoRecord(customDebugInfo, CustomDebugInfoKind.StateMachineHoistedLocalScopes);
if (!customDebugInfoRecord.IsDefault)
{
hoistedLocalScopeRecords = CustomDebugInfoReader.DecodeStateMachineHoistedLocalScopesRecord(customDebugInfoRecord)
.SelectAsArray(s => new HoistedLocalScopeRecord(s.StartOffset, s.Length));
}
GetCSharpDynamicLocalInfo(
customDebugInfo,
allScopes,
out dynamicLocalMap,
out dynamicLocalConstantMap);
}
GetTupleElementNamesLocalInfo(
customDebugInfo,
out tupleLocalMap,
out tupleLocalConstantMap);
}
var constantsBuilder = ArrayBuilder <TLocalSymbol> .GetInstance();
if (symbolProviderOpt != null) // TODO
{
GetConstants(constantsBuilder, symbolProviderOpt, containingScopes, dynamicLocalConstantMap, tupleLocalConstantMap);
}
var reuseSpan = GetReuseSpan(allScopes, ilOffset, isVisualBasicMethod);
return(new MethodDebugInfo <TTypeSymbol, TLocalSymbol>(
hoistedLocalScopeRecords,
importRecordGroups,
externAliasRecords,
dynamicLocalMap,
tupleLocalMap,
defaultNamespaceName,
containingScopes.GetLocalNames(),
constantsBuilder.ToImmutableAndFree(),
reuseSpan));
}
catch (InvalidOperationException)
{
// bad CDI, ignore
return(None);
}
finally
{
allScopes.Free();
containingScopes.Free();
}
}
internal static ISymUnmanagedReader CreateReader(Stream pdb)
{
return(SymUnmanagedReaderExtensions.CreateReader(pdb, DummyMetadataImport.Instance));
}
