Passing a language through the eye of a Needle

Аннотация

Many languages (not necessarily scripting languages) support extending through a foreign function interface (FFI). An FFI is not enough to allow a function in the system language to do all that a function in the script can do. Nevertheless, in practice FFI covers most common needs for extending, such as access to external libraries and system calls. Embedding, on the other hand, is more difficult to support, because it usually demands closer integration between the host program and the script, and FFI alone does not suffice.