dtolnay/cxx
Improve error message on signatures containing self by value
オープン
#577 opened on 2020/12/13
help wanted
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説明
The current error is shown as:
error[cxxbridge]: unsupported signature
┌─ /dev/stdin:1:54
│
1 │ #[cxx::bridge] mod ffi { extern "C++" { type T; fn f(self); }}
│ ^^^^ unsupported signature
Instead it should say what to use instead. &self or &mut self for shared structs and opaque Rust types, self: Pin<&mut Self> for an opaque C++ type, Box<T> or UniquePtr<T> if ownership needs to be transferred depending on opaque Rust or opaque C++ type.