On Wednesday, 4 April 2018 at 05:28:57 UTC, Carlos Navarro wrote:
As a newbie in D (and making a lots of mistakes), I've found
myself relying heavily in the use of a rudimentary type
inspector to visualize my templated code instantiations.
It's simple and incomplete as hell but good enough to see what
happens under the hood quickly.
QUESTION: Is there a function like that already in D?
//real-life example
goodEnoughTypeInspector!Human;
goodEnoughTypeInspector!(Database!Human);
//compile-time output
Inspecting type: Human
- public string name
- public string address
- public bool active
Inspecting type: Database!(Human)
- private string[] name
- private string[] address
- private bool[] active
- public pure nothrow @nogc @safe ulong() count
- public void insert
you might want to check std.traits [0] and __traits [1]. They
both contain functions that may be useful. To get members you
could use
__traits(allMembers, MyTemplate!SomeType);
Just check through the docs for relevant functions. You can then
compose the relevant function. I wrote a basic version you can
play with [2].
[0]: https://dlang.org/phobos/std_traits.html
[1]: https://dlang.org/spec/traits.html
[2]: https://run.dlang.io/is/COZ89T
