Function stringToByteVec

ffi.go:52–58

# What's up with `ptr()` methods? We use `runtime.SetFinalizer` to free all objects we allocate from C. This is intended to make usage of the API much simpler since you don't have to close/free anything. The tricky part here though is laid out in `runtime.SetFinalizer`'s documentation which is that

(s string)

// Convert a Go string into an owned `wasm_byte_vec_t`
func stringToByteVec(s string) C.wasm_byte_vec_t {
	vec := C.wasm_byte_vec_t{}
	C.wasm_byte_vec_new_uninitialized(&vec, C.size_t(len(s)))
	C.memcpy(unsafe.Pointer(vec.data), unsafe.Pointer(C._GoStringPtr(s)), vec.size)
	runtime.KeepAlive(s)
	return vec
}