private bool TryGetLazyValue(string name, bool publish, out object value)
{
if (!_cleared)
{
MemberInfo[] members = NonHiddenMembers(GetMember(name));
if (members.Length > 0)
{
// we only support fields, methods, and nested types in modules.
switch (members[0].MemberType)
{
case MemberTypes.Field:
Debug.Assert(members.Length == 1);
var fieldInfo = (FieldInfo)members[0];
if (fieldInfo.IsStatic)
{
value = ((FieldInfo)members[0]).GetValue(null);
}
else
{
throw new InvalidOperationException("instance field declared on module. Fields should stored as PythonGlobals, should be static readonly, or marked as PythonHidden.");
}
if (publish)
{
LazyAdd(name, value);
}
return(true);
case MemberTypes.Method:
if (!((MethodInfo)members[0]).IsSpecialName)
{
var methods = new MethodInfo[members.Length];
FunctionType ft = FunctionType.ModuleMethod | FunctionType.AlwaysVisible;
for (int i = 0; i < members.Length; i++)
{
var method = (MethodInfo)members[i];
if (method.IsStatic)
{
ft |= FunctionType.Function;
}
else
{
ft |= FunctionType.Method;
}
methods[i] = method;
}
var builtinFunc = BuiltinFunction.MakeMethod(
name,
methods,
members[0].DeclaringType,
ft
);
if ((ft & FunctionType.Method) != 0 && Instance != null)
{
value = builtinFunc.BindToInstance(Instance);
}
else
{
value = builtinFunc;
}
if (publish)
{
LazyAdd(name, value);
}
return(true);
}
break;
case MemberTypes.Property:
Debug.Assert(members.Length == 1);
var propInfo = (PropertyInfo)members[0];
if ((propInfo.GetGetMethod() ?? propInfo.GetSetMethod()).IsStatic)
{
value = ((PropertyInfo)members[0]).GetValue(null, ArrayUtils.EmptyObjects);
}
else
{
throw new InvalidOperationException("instance property declared on module. Propreties should be declared as static, marked as PythonHidden, or you should use a PythonGlobal.");
}
if (publish)
{
LazyAdd(name, value);
}
return(true);
case MemberTypes.NestedType:
if (members.Length == 1)
{
value = DynamicHelpers.GetPythonTypeFromType((Type)members[0]);
}
else
{
TypeTracker tt = (TypeTracker)MemberTracker.FromMemberInfo(members[0]);
for (int i = 1; i < members.Length; i++)
{
tt = TypeGroup.UpdateTypeEntity(tt, (TypeTracker)MemberTracker.FromMemberInfo(members[i]));
}
value = tt;
}
if (publish)
{
LazyAdd(name, value);
}
return(true);
}
}
}
value = null;
return(false);
}
static bool IsTrackerApplicableForType(Type type, MemberTracker mt)
{
return(mt.DeclaringType == type || type.IsSubclassOf(mt.DeclaringType));
}
private bool TryGetLazyValue(string name, bool publish, out object value)
{
if (!_cleared)
{
MemberInfo[] members = NonHiddenMembers(GetMember(name));
if (members.Length > 0)
{
// we only support fields, methods, and nested types in modules.
switch (members[0].MemberType)
{
case MemberTypes.Field:
Debug.Assert(members.Length == 1);
value = ((FieldInfo)members[0]).GetValue(null);
if (publish)
{
LazyAdd(name, value);
}
return(true);
case MemberTypes.Method:
if (!((MethodInfo)members[0]).IsSpecialName)
{
value = BuiltinFunction.MakeFunction(
name,
ArrayUtils.ConvertAll <MemberInfo, MethodInfo>(members, delegate(MemberInfo mi) { return((MethodInfo)mi); }),
members[0].DeclaringType
);
if (publish)
{
LazyAdd(name, value);
}
return(true);
}
break;
case MemberTypes.Property:
Debug.Assert(members.Length == 1);
value = ((PropertyInfo)members[0]).GetValue(null, ArrayUtils.EmptyObjects);
if (publish)
{
LazyAdd(name, value);
}
return(true);
case MemberTypes.NestedType:
if (members.Length == 1)
{
value = DynamicHelpers.GetPythonTypeFromType((Type)members[0]);
}
else
{
TypeTracker tt = (TypeTracker)MemberTracker.FromMemberInfo(members[0]);
for (int i = 1; i < members.Length; i++)
{
tt = TypeGroup.UpdateTypeEntity(tt, (TypeTracker)MemberTracker.FromMemberInfo(members[i]));
}
value = tt;
}
if (publish)
{
LazyAdd(name, value);
}
return(true);
}
}
}
value = null;
return(false);
}
