Examples to illustrate the use of algebraic effects in OCaml. See
The original implementation of Multicore OCaml allowed a user to Obj.clone_continuation
. This has been removed, the examples that used this are in the multishot
directory. See this conversation about the removal of this feature. They now use the ocaml-multicont library.
To run the examples with OCaml, be sure to install Opam with these instructions. These examples use the new effect syntax introduced with OCaml 5.3 and onwards. If you wish to see the examples which used the underlying effect functions directly, please checkout the 5.1.1
tag of this repository instead.
# After cloning this repository, create a 5.3 switch
opam update
opam switch create 5.3.0+trunk
opam install . --deps-only
Running make
will build all of the examples. If you want to run a single executable that is built with dune
you can run:
$ dune exec -- ./<executable_name>.exe
These are other examples that utilise OCaml effect handlers that are not in this repo:
If you are citing this work in an academic paper, please cite the PLDI 2021 paper "Retrofitting Effect Handlers onto OCaml": https://dl.acm.org/doi/10.1145/3453483.3454039.