Walter Bright:
http://wiki.dlang.org/DIP60
Start on implementation:
https://github.com/D-Programming-Language/dmd/pull/3455
Currently this code doesn't compile because the lambda allocates
the closure on the heap:
void main() @nogc {
import std.algorithm: map;
int[3] data = [1, 2, 3];
immutable int x = 3;
auto result = data[].map!(y => y * x);
}
test.d(1,6): Error: function D main @nogc function allocates a
closure with the GC
Such kind of code is common, so a good amount of range-based code
can't be @nogc.
-----------
In the meantime the good Kenji has created a patch for missing
semantics:
https://github.com/D-Programming-Language/dmd/pull/3493
Bye,
bearophile
