On 4/9/15 2:23 PM, Matt Kline wrote:
On Thursday, 9 April 2015 at 18:15:16 UTC, H. S. Teoh wrote:
The compiler detects when a variable is being closed over by a nested
function, and allocates them on the heap instead of the stack.
Is there somewhere I can read more about this (besides the compiler
source code)? What ramifications are there for local variables being
closed over that have destructors? Does the Voldemort object then get
implicit destructor code that destroys the closed-over variables when it
falls out of scope?
It's called a closure. It's not specific to voldemort types, it's done
whenever you take a delegate that needs the context pointer to the stack.
I believe destruction is performed on the stack frame data when the GC
collects the stack frame.
See here: http://dlang.org/function.html#closures
In regards to voldemort types triggering a heap allocation of the stack
frame, I can't find specific documentation on this, probably a good idea
to add it.
-Steve
