Unavailable inline C function

[Sunbreak]

Ref: woodemi/libusb.dart#10

Inline C function

static inline uint16_t libusb_cpu_to_le16(const uint16_t x)

generates Dart function

int libusb_cpu_to_le16(
  int x,
)

which is unavailable within dynamic library

---

Could we skip inline functions or generate some inline implementations?

[dcharkes]

We should skip them. (Generating an implementation for an arbitrary function would be very involved.)

[Sunbreak]

Solved via ffigen: ^2.0.1 since https://github.com/woodemi/libusb.dart/releases/tag/0.3.23-nullsafety.0

[Sunbreak]

BTW, why --enable-experiment: non-nullable is needed in analysis_options.yaml, ordart migrate fails with This requires the 'non-nullable' language feature to be enabled.

On the other hand, running example via dart doesn't require --enable-experiment=non-nullable

analyzer: 1.0.0 has nullsafety support already

Ref: https://stackoverflow.com/questions/57598838/non-nullable-by-default-how-to-enable-the-experiment

[mannprerak2]

why --enable-experiment: non-nullable is needed in analysis_options.yaml, or dart migrate fails with This requires the 'non-nullable' language feature to be enabled.

I am not sure what's exactly happening, can you give some more details?

My guess is that you might be running examples from the master branch. Please try out the dart-dev branch (it depends sdk version 2.12.0-259.beta. The examples in master branch currently run in unsound null safety. so you don't need the flag when running those.

The analyzer shouldn't complain about enabling the flag, since it has been enabled by default on 2.12.0-259.beta. Maybe your IDE is using an older version of dart SDK?

[Sunbreak]

Thanks for response. I'd like to file another issue in https://github.com/dart-lang/sdk