public ImportedMethod TryImportCurrentMethod()
{
if (_currentMethod != null)
{
return(_currentMethod);
}
IntPtr metadataBlock;
uint blockSize;
try
{
metadataBlock = InstructionAddress.ModuleInstance.GetMetaDataBytesPtr(out blockSize);
}
catch (DkmException)
{
// This can fail when dump debugging if the full heap is not available
return(null);
}
ImportedModule module = Session.Importer.ImportModule(metadataBlock, blockSize);
_currentMethod = module.GetMethod(InstructionAddress.MethodId.Token);
return(_currentMethod);
}
private void EnsureMethods()
{
if (_methods == null)
{
_methods = new List <ImportedMethod>();
foreach (MethodDefinitionHandle methodHandle in _typeDef.GetMethods())
{
ImportedMethod method = Module.ResolveMethod(methodHandle, this);
_methods.Add(method);
}
}
}
public LocalVariable[] GetLocals()
{
if (_cachedLocals != null)
{
return(_cachedLocals);
}
ImportedMethod method = TryImportCurrentMethod();
_cachedLocals = GetLocalsImpl(method).ToArray();
return(_cachedLocals);
}
internal ImportedMethod ResolveMethod(MethodDefinitionHandle handle, ImportedType declaringType = null)
{
ImportedMethod method;
if (!_resolvedMethods.TryGetValue(handle, out method))
{
MethodDefinition methodDef = _reader.GetMethodDefinition(handle);
if (declaringType == null)
{
declaringType = ResolveType(methodDef.GetDeclaringType());
}
var name = methodDef.Name;
var strName = this.Reader.GetString(name);
method = new ImportedMethod(this, methodDef, declaringType);
_resolvedMethods.Add(handle, method);
}
return(method);
}
private IEnumerable <LocalVariable> GetLocalsImpl(ImportedMethod method)
{
if (method != null)
{
// Get the local symbols from the PDB (symbol file). If symbols aren't loaded, we
// can't show any local variables
DkmClrLocalVariable[] symbols = GetLocalSymbolsFromPdb().ToArray();
if (symbols.Length != 0)
{
// To determine the local types, we need to decode the local variable signature
// token. Get the token from the debugger, then use our importer
// to get the variables types. We can then construct the correlated list of local
// types and names.
int localVarSigToken = InstructionAddress.ModuleInstance.GetLocalSignatureToken(CurrentMethodToken);
ImmutableArray <XSharpType> localTypes = method.Module.DecodeLocalVariableTypes(localVarSigToken);
foreach (DkmClrLocalVariable localSymbol in symbols)
{
int slot = localSymbol.Slot;
yield return(new LocalVariable(localSymbol.Name, localTypes[slot], slot));
}
}
}
}
