C3D_BindProgram stores the passed-in pointer to a shader::Program in the C3D context. Currently, bind_program takes a reference to a Program, meaning that it's possible to pass in a Program that is dropped before the context attempts to use it (at the end of the frame, when it's rendered). This leads to a use-after-free and generally a crash.
This can be avoided by the Instance taking ownership of the passed-in Program, and storing it in some kind of data type that can be Pinned.
C3D_BindProgramstores the passed-in pointer to ashader::Programin the C3D context. Currently,bind_programtakes a reference to aProgram, meaning that it's possible to pass in aProgramthat is dropped before the context attempts to use it (at the end of the frame, when it's rendered). This leads to a use-after-free and generally a crash. This can be avoided by theInstancetaking ownership of the passed-inProgram, and storing it in some kind of data type that can bePinned.