September 2007 - Posts

• Psychic Debugging, Part Two

  A number of readers have the mysterious fifth sense which gives them the ability to deduce that the GetBars method from yesterday's post contains a yield return and is therefore an iterator. Remember, as the standard states (in section 10.14.4): [...] Read More... Posted Thursday, September 06, 2007 8:31 AM by Eric Lippert | 6 Comments Filed under: C#, Psychic Debugging, Puzzles

• Psychic Debugging, Part One

  Here is a compiler bug report I got the other day. The user is trying to write a unit test for a method which takes a Foo and returns a collection of Bar s. The test is supposed to confirm that GetBars throws an exception if the argument is null . The Read More... Posted Wednesday, September 05, 2007 10:30 AM by Eric Lippert | 8 Comments Filed under: C#, Psychic Debugging, Puzzles

• Future Breaking Changes, Part Three

  As I said earlier , we hate causing breaking changes in our product, the C# compiler, because they cause our customers pain. Said customers are also software developers, and presumably they hate causing breaking changes for their customers as much as Read More... Posted Tuesday, September 04, 2007 7:30 AM by Eric Lippert | 21 Comments Filed under: C#, Breaking Changes, Brittle Base Classes