ChorEr

ChorEr is a static analyzer to generate Choreography Automata from Erlang source code.

Requirements

The project requires erlang and rebar3 to run.

Usage

Use rebar3 to run the program from the command line or to compile it.

# rebar3 escriptize
# ./_build/default/bin/chorer ./path/to/your/program.erl main/0 path/to/folder

or

# rebar3 shell
1> chorer:generate("./examples/ticktack/tictacstop.erl", "start/0").
finished

Output

The tool will create a DOT file for each actor's local view and a DOT file for the global view in the specified folder. To visualize the Choreography Automatas copy and paste the .dot files' content in a DOT viewer.

Documentation

The documentation of the project is aviable at this link. You can also generete it with

# rebar3 ex_doc --output docs

Test

Try out the tool using the ./test.py script.

Supported expression

Expression	Support
atom	✅ yes
integer	✅ yes
float	✅ yes
boolean	✅ yes
tuple	✅ yes
list	🟡 partial
string	🟡 partial
record	❌ no
map	❌ no
binary	❌ no
if	✅ yes
case	✅ yes
receive	✅ yes
send	✅ yes
spawn	✅ yes
spawn_monitor	❌ no
match	🟡 partial
function	✅ yes
guards	❌ no
register	🟡 static eval
unregister	❌ no
whereis	❌ no
rand:uniform	✅ yes
self	✅ yes
anon functions	✅ yes
try catch	❌ no
after	❌ no
math operation	❌ no

Credits

This project was made for the Bachelor's degree Thesis of the Computer Science course at Alma Mater Studiorum - University of Bologna. I am grateful to the professor Ivan Lanese, who supervised the development of this project.