dialectic-compiler 0.1.0

Session type macro compiler for the Dialectic crate
Documentation 
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use {
    dialectic_compiler::{syntax, Invocation, Spanned, Syntax},
    quote::ToTokens,
    syn::Type,
};

#[test]
fn tally_client_expr_call_ast() {
    let client_ast: Spanned<Syntax> = Syntax::Loop(
        None,
        Box::new(
            Syntax::Choose(vec![
                Syntax::Break(None).into(),
                Syntax::Block(vec![
                    Syntax::send("Operation").into(),
                    Syntax::call(Syntax::type_("ClientTally")).into(),
                ])
                .into(),
            ])
            .into(),
        ),
    )
    .into();

    let s = format!("{}", syntax::compile(&client_ast).unwrap());
    assert_eq!(
        s,
        "Loop<Choose<(Done, Send<Operation, Call<ClientTally, Continue<0>>>)>>"
    );
}

#[test]
fn tally_client_expr_call_parse_string() {
    let to_parse = "loop {
            choose {
                0 => break,
                1 => {
                    send Operation;
                    call ClientTally;
                },
            }
        }";

    let ast = syn::parse_str::<Spanned<Syntax>>(to_parse).unwrap();
    let s = format!("{}", syntax::compile(&ast).unwrap());
    assert_eq!(
        s,
        "Loop<Choose<(Done, Send<Operation, Call<ClientTally, Continue<0>>>)>>"
    );
}

#[test]
fn tally_client_invocation_call_parse_string() {
    let to_parse = "loop {
                choose {
                    0 => break,
                    1 => {
                        send Operation;
                        call ClientTally;
                    },
                }
            }";

    let ast = syn::parse_str::<Spanned<Syntax>>(to_parse).unwrap();
    let s = format!("{}", syntax::compile(&ast).unwrap());
    assert_eq!(
        s,
        "Loop<Choose<(Done, Send<Operation, Call<ClientTally, Continue<0>>>)>>"
    );
}

#[test]
fn tally_client_invocation_direct_subst_parse_string() {
    let to_parse = "'client: loop {
                choose {
                    0 => break,
                    1 => {
                        send Operation;
                        ClientTally;
                    },
                }
            }";

    let ast = syn::parse_str::<Spanned<Syntax>>(to_parse).unwrap();
    let s = format!("{}", syntax::compile(&ast).unwrap());
    assert_eq!(
        s,
        "Loop<Choose<(Done, Send<Operation, <ClientTally as Then<Continue<0>>>::Combined>)>>"
    );
}

#[test]
fn tally_client_direct_subst_nested_loop_break() {
    let to_parse = "'client: loop {
            choose {
                0 => break,
                1 => {
                    send Operation;
                    loop {
                        choose {
                            0 => send i64,
                            1 => {
                                recv i64;
                                continue 'client;
                            }
                        }
                    }
                },
            }
        }";

    let lhs: Type = syn::parse2(
        syn::parse_str::<Invocation>(to_parse)
            .unwrap()
            .compile()
            .unwrap()
            .into_token_stream(),
    )
    .unwrap();

    let rhs: Type = syn::parse_str(
        "::dialectic::types::Loop<
                ::dialectic::types::Choose<(
                    ::dialectic::types::Done,
                    ::dialectic::types::Send<
                        Operation,
                        ::dialectic::types::Loop<
                            ::dialectic::types::Choose<(
                                ::dialectic::types::Send<i64, ::dialectic::types::Continue<0usize>>,
                                ::dialectic::types::Recv<i64, ::dialectic::types::Continue<1usize>>,
                            )>
                        >
                    >,
                )>
            >",
    )
    .unwrap();

    assert_eq!(
        lhs.to_token_stream().to_string(),
        rhs.to_token_stream().to_string()
    );
}