I've been thinking about scoped imports. While it seems like you
can use scoped imports a lot of the time, it seems like there are
some potential cases where you can't. Most notably if a function
input is a struct or class, then I can't figure out a way to use
a scoped import. This also applies
On Monday, 31 August 2015 at 19:10:45 UTC, jmh530 wrote:
module local;
struct S { int a = 2; }
module app;
import local : S;
void foo(S s)
{
import std.stdio : writeln;
writeln(s.a);
}
void bar()
{
import std.stdio : writeln;
import local : S;
S s;
On Monday, 31 August 2015 at 20:54:53 UTC, Enamex wrote:
You can't use it with foo(S) because the type is used /outside/
the scope of the function, in its head. You have to qualify it
( void foo(local.S s) ) or import the type as:
{ import local: S;
void foo(S s) { ... }
}
I figured t
On Monday, 31 August 2015 at 21:22:07 UTC, jmh530 wrote:
I'm not sure about how the first local.S resolves things. I had
been using a selective import for S before. To get the local.S
to compile, I have to change the import to a normal one. I'm
concerned about the case where local contains more
On Monday, 31 August 2015 at 23:36:25 UTC, Enamex wrote:
I'm not sure whether a naked 'local.S' should work; sometimes
it does and sometimes it doesn't. But an `static import local;`
then `voidfoo(local.S)` definitely works.
`static import` forces the imported symbols to be fully
qualified on
On Tuesday, 1 September 2015 at 15:50:40 UTC, jmh530 wrote:
I'm following some of your post, but not quite all of it
(particularly the part at the end, and I also think static
imports can't be selective). Anyway, I was thinking about
something like below as one possible alternative
struct T
{
On Tuesday, 1 September 2015 at 19:48:02 UTC, Enamex wrote:
They aren't selective, yeah. But the rationale is good: There's
not supposed to be any way to import modules with the same path
so static importing means it's entirely and always unambiguous.
I understand that a static import is alw
On Tuesday, 1 September 2015 at 21:17:10 UTC, jmh530 wrote:
Consider these three different ways to import std.stdio
import std.stdio;
import std.stdio : writeln;
static import std.stdio;
and suppose writeln is the only function in std.stdio the
program is using.
In each case, the size of the e
