iOS's LLDB's P command not printing frame variable

Question

Lets say I want to do a

p uiTextFieldObj.frame

it will say error: property

'frame' not found on object of type 'UITextField *'

Is there any tricks I can do so I can get this to show?

Answer 1

You can do this:

p (CGRect)[uiTextFieldObj frame]

As of Xcode 4.5.2, printing properties in lldb using the dot syntax only seems to work for properties of objects defined in your app, not for properties defined by framework classes.

Answer 2

You can get it to print by doing [] notation instead of . notation:

Have you tried this?

print (CGRect)[textfieldObj frame]

Without the (CGRect) cast, it will most likely show an error saying that it doesn't know the return type. You can also just do:

po textfieldObj

which will show you the frame and some other information about the text field. the po debug command will call the objects -description method, which you can override to provide any information you like.

Answer 3

See An @import-ant Change in Xcode

LLDB’s parser for Objective-C can now go through any module used in your app and determine the types used for all functions and methods it defines

e @import UIKit;
po uiTextFieldObj.frame