Add C++20 module build target #1364
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This is a first working version, I don't know flecs enough for what approaches might be preferred for the define names and usage. |
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Ah, seems my fix for the modularised version of |
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g++'s module support is incomplete, and the work around seems to big to be worth it right now. |
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@SanderMertens can I have your thoughts on this approach ? |
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Usage in client cmake: ```cmake set(FLECS_M0DULE ON CACHE BOOL "Build flecs module" FORCE) add_subdirectory(path/to/flecs) target_compile_features(flecs-module PUBLIC cxx_std_23) target_link_libraries( someProjectName PRIVATE flecs-module ) ``` In the code, it is then possible to use `import flecs;` to import all the flecs symbols. Still investigating why reflection seems to break, disabled in the module for now. Maintainance: - structs exposed by flecs must be tagged with `FLECS_API_STRUCT` - code within the c++ addon tagged with `FLECS_API` are exposed - globals must be tagged with `FLECS_API_GLOBAL`, which becomes `static` in headers, and export in the module.
Not having it visible breaks compilation on msvc
- Improve define names - Split FLECS_GLOBAL_API in two because `export` comes before template delcarations and `static` afterwards - Fix enum reflection
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Usage in client cmake:
In the code, it is then possible to use
import flecs;to import all the flecs symbols.Still investigating why reflection seems to break, disabled in the module for now.Fixed.Maintainance:
FLECS_API_STRUCTFLECS_APIare exposedFLECS_API_GLOBAL, which becomesstaticin headers, and export in the module.Closes #1317