On Wednesday, 3 June 2020 at 09:03:22 UTC, drathier wrote:
> I'm generating some code. Some of the generated types need to be overridden, so I define them manually at the top of the generated file. Then I need to guard against redefining the identifier (type/value/function) later on, in the generated code.
>
> I'm currently using `static if (!__traits(compiles, thingy)) {` to avoid redefining things twice.
>
> Of course the proper fix is to not generate code for the identifiers which are already manually defined, and not generate any `static if`s at all, but until then, is there a faster way than `static if (__traits(compiles, ...` to check if a type/value/function has already been defined?

This seems more complicated than I initially assumed. Is there a faster way if we separate the question to find just one of types, templates or top-level values at a time, into three different solutions? The definitions and static ifs are always always top level definitions/statements in my case.