/// <summary>
/// Deserializes an expression of the form:
///
/// System.Drawing.Color.FromArgb(0, 192, 0)
/// </summary>
object DeserializeMethodCallExpression(CallExpression callExpression, MemberExpression memberExpression)
{
PythonControlFieldExpression field = PythonControlFieldExpression.Create(memberExpression);
Type type = GetType(field);
if (type != null)
{
foreach (MethodInfo method in type.GetMethods(BindingFlags.Public | BindingFlags.Static))
{
if (method.Name == field.MemberName)
{
if (method.GetParameters().Length == callExpression.Args.Count)
{
return(method.Invoke(null, GetArguments(callExpression).ToArray()));
}
}
}
}
else
{
// Maybe it is a call to a constructor?
type = componentCreator.GetType(field.FullMemberName);
if (type != null)
{
return(componentCreator.CreateInstance(type, GetArguments(callExpression), null, false));
}
}
return(null);
}
public override bool Walk(AssignmentStatement node)
{
if (!walkingInitializeComponentMethod)
{
return(false);
}
if (node.Left.Count > 0)
{
MemberExpression lhsMemberExpression = node.Left[0] as MemberExpression;
NameExpression lhsNameExpression = node.Left[0] as NameExpression;
if (lhsMemberExpression != null)
{
fieldExpression = PythonControlFieldExpression.Create(lhsMemberExpression);
WalkMemberExpressionAssignmentRhs(node.Right);
}
else if (lhsNameExpression != null)
{
CallExpression callExpression = node.Right as CallExpression;
if (callExpression != null)
{
object instance = CreateInstance(lhsNameExpression.Name.ToString(), callExpression);
if (instance == null)
{
ThrowCouldNotFindTypeException(callExpression.Target as MemberExpression);
}
}
}
}
return(false);
}
/// <summary>
/// Walks a method call. Typical method calls are:
///
/// self._menuItem1.Items.AddRange(...)
///
/// This method will execute the method call.
/// </summary>
void WalkMethodCall(CallExpression node)
{
// Try to get the object being called. Try the form first then
// look for other controls.
object member = PythonControlFieldExpression.GetMember(component, node);
PythonControlFieldExpression field = PythonControlFieldExpression.Create(node);
if (member == null)
{
member = field.GetMember(componentCreator);
}
// Execute the method on the object.
if (member != null)
{
object[] args = deserializer.GetArguments(node).ToArray();
InvokeMethod(member, field.MethodName, args);
}
}
/// <summary>
/// Walks a statement of the form:
///
/// self.a += self.b
/// </summary>
public override bool Walk(AugmentedAssignStatement node)
{
if (!FoundInitializeComponentMethod)
{
return(false);
}
MemberExpression eventExpression = node.Left as MemberExpression;
string eventName = eventExpression.Name.ToString();
PythonControlFieldExpression field = PythonControlFieldExpression.Create(eventExpression);
MemberExpression eventHandlerExpression = node.Right as MemberExpression;
string eventHandlerName = eventHandlerExpression.Name.ToString();
IComponent currentComponent = fieldExpression.GetObject(componentCreator) as IComponent;
EventDescriptor eventDescriptor = TypeDescriptor.GetEvents(currentComponent).Find(eventName, false);
PropertyDescriptor propertyDescriptor = componentCreator.GetEventProperty(eventDescriptor);
propertyDescriptor.SetValue(currentComponent, eventHandlerName);
return(false);
}
/// <summary>
/// Deserializes expressions of the form:
///
/// 1) System.Windows.Forms.Cursors.AppStarting
/// </summary>
object Deserialize(MemberExpression memberExpression)
{
PythonControlFieldExpression field = PythonControlFieldExpression.Create(memberExpression);
Type type = GetType(field);
if (type != null)
{
if (type.IsEnum)
{
return(Enum.Parse(type, field.MemberName));
}
else
{
BindingFlags propertyBindingFlags = BindingFlags.Public | BindingFlags.GetField | BindingFlags.Static | BindingFlags.Instance;
PropertyInfo propertyInfo = type.GetProperty(field.MemberName, propertyBindingFlags);
if (propertyInfo != null)
{
return(propertyInfo.GetValue(type, null));
}
}
}
return(componentCreator.GetInstance(PythonControlFieldExpression.GetVariableName(field.MemberName)));
}
