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033892777a
mal/impls/sml
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Nicolas Boulenguez 033892777a Merge eval-ast and macro expansion into EVAL, add DEBUG-EVAL 
See issue #587.
* Merge eval-ast and eval into a single conditional.
* Expand macros during the apply phase, removing lots of duplicate
  tests, and increasing the overall consistency by allowing the macro
  to be computed instead of referenced by name (`((defmacro! cond
  (...)))` is currently illegal for example).
* Print "EVAL: $ast" at the top of EVAL if DEBUG-EVAL exists in the
  MAL environment.
* Remove macroexpand and quasiquoteexpand special forms.
* Use pattern-matching style in process/step*.txt.

Unresolved issues:
c.2: unable to reproduce with gcc 11.12.0.
elm: the directory is unchanged.
groovy: sometimes fail, but not on each rebuild.
nasm: fails some new soft tests, but the issue is unreproducible when
  running the interpreter manually.
objpascal: unreproducible with fpc 3.2.2.
ocaml: unreproducible with 4.11.1.
perl6: unreproducible with rakudo 2021.09.

Unrelated changes:
Reduce diff betweens steps.
Prevent defmacro! from mutating functions: c forth logo miniMAL vb.
dart: fix recent errors and warnings
ocaml: remove metadata from symbols.

Improve the logo implementation.
Encapsulate all representation in types.lg and env.lg, unwrap numbers.
Replace some manual iterations with logo control structures.
Reduce the diff between steps.
Use native iteration in env_get and env_map
Rewrite the reader with less temporary strings.
Reduce the number of temporary lists (for example, reverse iteration
with butlast requires O(n^2) allocations).
It seems possible to remove a few exceptions: GC settings
(Dockerfile), NO_SELF_HOSTING (IMPLS.yml) and step5_EXCLUDES
(Makefile.impls) .
2024-08-05 11:40:49 -05:00
..
.gitignore add sml_MODE selection for Make 2021-05-02 17:35:40 -05:00
core.sml SML portability: use LargeInt for time-ms 2021-05-02 17:35:40 -05:00
Dockerfile SML CI: add mosml, mlton, setup GitHub workflow 2021-05-02 17:35:40 -05:00
env.sml remove unused function 2021-05-02 17:35:40 -05:00
LargeInt.sml SML portability: use LargeInt for time-ms 2021-05-02 17:35:40 -05:00
main.sml refactor SML to be more portable 2021-05-02 17:35:40 -05:00
Makefile SML portability: use LargeInt for time-ms 2021-05-02 17:35:40 -05:00
printer.sml SML portability: use LargeInt for time-ms 2021-05-02 17:35:40 -05:00
reader.sml SML portability: use LargeInt for time-ms 2021-05-02 17:35:40 -05:00
README.md add SML README 2021-05-02 17:35:40 -05:00
run SML: Step 0 2021-05-02 17:35:40 -05:00
step0_repl.mlb SML build with MLton 2021-05-02 17:35:40 -05:00
step0_repl.sml formatting 2021-05-02 17:35:40 -05:00
step1_read_print.mlb SML: Step 1 2021-05-02 17:35:40 -05:00
step1_read_print.sml formatting 2021-05-02 17:35:40 -05:00
step2_eval.mlb SML: Step 2 2021-05-02 17:35:40 -05:00
step2_eval.sml Merge eval-ast and macro expansion into EVAL, add DEBUG-EVAL 2024-08-05 11:40:49 -05:00
step3_env.mlb step 3 scaffolding 2021-05-02 17:35:40 -05:00
step3_env.sml Merge eval-ast and macro expansion into EVAL, add DEBUG-EVAL 2024-08-05 11:40:49 -05:00
step4_if_fn_do.mlb if and fn* work 2021-05-02 17:35:40 -05:00
step4_if_fn_do.sml Merge eval-ast and macro expansion into EVAL, add DEBUG-EVAL 2024-08-05 11:40:49 -05:00
step6_file.mlb step 6 scaffolding 2021-05-02 17:35:40 -05:00
step6_file.sml Merge eval-ast and macro expansion into EVAL, add DEBUG-EVAL 2024-08-05 11:40:49 -05:00
step7_quote.mlb step 7 scaffolding 2021-05-02 17:35:40 -05:00
step7_quote.sml Merge eval-ast and macro expansion into EVAL, add DEBUG-EVAL 2024-08-05 11:40:49 -05:00
step8_macros.mlb step 8 scaffolding 2021-05-02 17:35:40 -05:00
step8_macros.sml Merge eval-ast and macro expansion into EVAL, add DEBUG-EVAL 2024-08-05 11:40:49 -05:00
step9_try.mlb step 9 scaffolding 2021-05-02 17:35:40 -05:00
step9_try.sml Merge eval-ast and macro expansion into EVAL, add DEBUG-EVAL 2024-08-05 11:40:49 -05:00
stepA_mal.mlb step A scaffolding 2021-05-02 17:35:40 -05:00
stepA_mal.sml Merge eval-ast and macro expansion into EVAL, add DEBUG-EVAL 2024-08-05 11:40:49 -05:00
types.sml SML portability: use LargeInt for time-ms 2021-05-02 17:35:40 -05:00
util.sml add core readline 2021-05-02 17:35:40 -05:00

README.md

SML-MAL

This is Make-A-Lisp in Standard ML.

Building

Just run make.

Building requires a Standard ML compiler with basis library. This MAL implementation has been tested and works with Poly/ML, MLton, and Moscow ML.

On Ubuntu, you can run apt-get install polyml libpolyml-dev.

By setting sml_MODE to polyml, mosml, or mlton on invoking make you can select which compiler to use. The Makefile has some hacks to figure out how to make the different compilers build everything.

Running

You can build a mal binary from the final step with make dist:

$ make dist
$ ./mal
Mal [sml]
user> (map (fn* (x) (println "Odelay!")) [1 2 3 4 5])
Odelay!
Odelay!
Odelay!
Odelay!
Odelay!
(nil nil nil nil nil)
user>