gleamunison/loader_ffi

One declaration authority for the BEAM loader family.

Four externals — source text to a binary, a BEAM binary into the code server, back out again, and a call into a loaded module — were declared two or three times each across loader, pipeline, elaborate, parser and repl_eval, always with the identical signature. repl_eval even published two of them, which made it a second authority for a concern it does not own — and elaborate cannot import repl_eval (repl_eval imports elaborate), so half the tree was forced to re-declare instead.

This module depends on nothing, so any module can use it without a cycle.

Values

eval_module

</>

pub fn eval_module(mod_name: String) -> Result(String, String)

Call into a loaded module and read back its rendered result.

load_binary

</>

pub fn load_binary(
  mod_name: String,
  beam: BitArray,
) -> Result(Nil, String)

Put compiled BEAM bytes into the code server under mod_name.

string_to_binary

</>

pub fn string_to_binary(s: String) -> BitArray

Compile-side view of source text: the binary form the loader wants.

unload_binary

</>

pub fn unload_binary(mod_name: String) -> Result(Nil, String)

Take a loaded module out of the code server again.