Escape analysis

[Jason House]

Sean Kelly Wrote:

> Walter Bright wrote:
> > In other words (as Andrei pointed out to me) the cost of those errors, 
> > even though rare, is very high. This makes it highly desirable to 
> > prevent them automatically, rather than relying on the skill and 
> > attention to detail of the programmer.
> 
> I think the cost/benefit of this could probably be argued either way. 
> I've never encountered a bug related to this, for example, so to me the 
> benefit is entirely theoretical while the cost is immediate.

As the author of an open source multithreaded application in D1, I've had these errors pop up.  It's easy to overlook this stuff and pass things the wrong way (it's easier to code).  Tango doesn't even have a bind library to make it easier!