internal IMethod GetMethod(object token, ILType contextType, ILMethod contextMethod, out bool invalidToken)
{
string methodname = null;
string typename = null;
List <IType> paramList = null;
int hashCode = token.GetHashCode();
IMethod method;
IType[] genericArguments = null;
IType returnType;
invalidToken = false;
bool isConstructor = false;
if (mapMethod.TryGetValue(hashCode, out method))
{
return(method);
}
IType type = null;
if (token is Mono.Cecil.MethodReference)
{
Mono.Cecil.MethodReference _ref = (token as Mono.Cecil.MethodReference);
if (_ref.FullName == "System.Void System.Object::.ctor()")
{
mapMethod[hashCode] = null;
return(null);
}
if (_ref.FullName == "System.Void System.Attribute::.ctor()")
{
mapMethod[hashCode] = null;
return(null);
}
methodname = _ref.Name;
var typeDef = _ref.DeclaringType;
type = GetType(typeDef, contextType, contextMethod);
if (type == null)
{
throw new KeyNotFoundException("Cannot find type:" + typename);
}
if (token is Mono.Cecil.MethodDefinition)
{
var def = _ref as MethodDefinition;
isConstructor = def.IsConstructor;
}
else
{
isConstructor = methodname == ".ctor";
}
if (_ref.IsGenericInstance)
{
GenericInstanceMethod gim = (GenericInstanceMethod)_ref;
genericArguments = new IType[gim.GenericArguments.Count];
for (int i = 0; i < genericArguments.Length; i++)
{
if (gim.GenericArguments[i].IsGenericParameter)
{
invalidToken = true;
}
var gt = GetType(gim.GenericArguments[i], contextType, contextMethod);
if (gt == null)
{
gt = contextMethod.FindGenericArgument(gim.GenericArguments[i].Name);
if (gt == null)//This means it contains unresolved generic arguments, which means it's not searching the generic instance
{
genericArguments = null;
break;
}
else
{
genericArguments[i] = gt;
}
}
else
{
genericArguments[i] = gt;
}
}
}
paramList = _ref.GetParamList(this, contextType, contextMethod, genericArguments);
returnType = GetType(_ref.ReturnType, contextType, null);
}
else
{
throw new NotImplementedException();
//Mono.Cecil.GenericInstanceMethod gmethod = _def as Mono.Cecil.GenericInstanceMethod;
//genlist = new MethodParamList(environment, gmethod);
}
if (isConstructor)
{
method = type.GetConstructor(paramList);
}
else
{
method = type.GetMethod(methodname, paramList, genericArguments, returnType);
if (method != null && method.IsGenericInstance)
{
mapMethod[method.GetHashCode()] = method;
}
}
if (method == null)
{
if (isConstructor && contextType.FirstCLRBaseType != null && contextType.FirstCLRBaseType is CrossBindingAdaptor && type.TypeForCLR == ((CrossBindingAdaptor)contextType.FirstCLRBaseType).BaseCLRType)
{
method = contextType.BaseType.GetConstructor(paramList);
if (method == null)
{
throw new KeyNotFoundException("Cannot find method:" + methodname);
}
invalidToken = true;
mapMethod[method.GetHashCode()] = method;
}
else
{
throw new KeyNotFoundException("Cannot find method:" + methodname);
}
}
if (!invalidToken)
{
mapMethod[hashCode] = method;
}
return(method);
}