internal static PEMethodSymbol GetSourceMethod(this CSharpCompilation compilation, Guid moduleVersionId, MethodDefinitionHandle methodHandle)
{
var method = GetMethod(compilation, moduleVersionId, methodHandle);
var metadataDecoder = new MetadataDecoder((PEModuleSymbol)method.ContainingModule);
var containingType = method.ContainingType;
if (GeneratedNameParser.TryParseSourceMethodNameFromGeneratedName(containingType.Name, GeneratedNameKind.StateMachineType, out var sourceMethodName))
{
foreach (var member in containingType.ContainingType.GetMembers(sourceMethodName))
{
if (member is PEMethodSymbol candidateMethod)
{
var module = metadataDecoder.Module;
methodHandle = candidateMethod.Handle;
string stateMachineTypeName;
if (module.HasStringValuedAttribute(methodHandle, AttributeDescription.AsyncStateMachineAttribute, out stateMachineTypeName) ||
module.HasStringValuedAttribute(methodHandle, AttributeDescription.IteratorStateMachineAttribute, out stateMachineTypeName))
{
if (metadataDecoder.GetTypeSymbolForSerializedType(stateMachineTypeName).OriginalDefinition.Equals(containingType))
{
return(candidateMethod);
}
}
}
}
}
return(method);
}
public override string FormatTypeName(Type type, CommonTypeNameFormatterOptions options)
{
string stateMachineName;
if (GeneratedNameParser.TryParseSourceMethodNameFromGeneratedName(type.Name, GeneratedNameKind.StateMachineType, out stateMachineName))
{
return(stateMachineName);
}
return(base.FormatTypeName(type, options));
}