On 3/11/23 7:04 AM, bomat wrote:
Hi all,
I am a C++ programmer in my "day job" and was playing around with D to
maybe use it in a personal project.
I'm using Dear ImGui for the graphical user interface, for which I use
this port:
https://github.com/KytoDragon/imgui/
It works fairly well so far, just one problem: Dear ImGui is obviously
`@nogc`, and I noticed that it doesn't mix with standard library functions.
I tried `std.process.executeShell()` (which I'd kinda need for my
project unless I want do do OS specific API calls), and
`std.stdio.writeln()` (which I won't exactly be needing, just as a very
basic test).
So my question is:
Is Phobos essentially incompatible to `@nogc`?
Or is there a trick for mixing GC code with non-GC code that I don't know?
Most of Phobos uses exceptions, which require the gc.
I'm assuming the second, for if the first was true I'd say that D would
be pretty much useless when combined with non-D libs...
I think it is an error to mark a library which centers on callbacks with
always being @nogc. You can work around nothrow and @safe, but not @nogc.
This also brings up a point that there just isn't a way to do a
callback-centered library that can be simultaneously used with nogc or
gc, unless you template based on that. It's not a good situation, and I
don't know of a good solution.
-Steve
