https://issues.dlang.org/show_bug.cgi?id=15370
Issue ID: 15370
Summary: Some way to manually allocate the closure for
delegates to nested functions.
Product: D
Version: D2
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P1
Component: dmd
Assignee: [email protected]
Reporter: [email protected]
There has been a strong push to move away from the GC, being able to allocate
closures with out it would be another step in that direction. As far as I can
tell there is no current way to manually allocate a closure. It would be great
if there was a solution that could work with allocators to be able to manually
allocate closures.
Example:
auto foo(int x)
{
int bar(){ return x; }
return &bar;
// implicitly allocates a closure with the gc
// No way to manually allocate it currently
}
Maybe it could be something as simple as __traits(setClosureAllocator,
Mallocator.instance); to set the allocator for the closure of the current
function.
Allocators then would need to handle the case of freeing the delegate closure
as well.
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