MORPH
SIGN IN SIGN UP
kanaka / mal UNCLAIMED

mal - Make a Lisp

0 0 0 Assembly
Normal View History Raw
Current state of mal for Clojure West lighting talk.
2014-03-24 16:32:24 -05:00
<?php
require_once 'readline.php';
require_once 'types.php';
require_once 'reader.php';
All: split types into types, env, printer, core. - types: low-level mapping to the implementation language. - core: functions on types that are exposed directly to mal. - printer: implementation called by pr-str, str, prn, println. - env: the environment implementation - Also, unindent all TCO while loops so that the diff of step4 and step5 are minimized.
2014-04-02 22:23:37 -05:00
require_once 'printer.php';
require_once 'env.php';
require_once 'core.php';
Current state of mal for Clojure West lighting talk.
2014-03-24 16:32:24 -05:00
// read
function READ($str) {
return read_str($str);
}
// eval
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: $ast" at the top of EVAL if DEBUG-EVAL exists in the MAL environment. * Remove macroexpand and quasiquoteexpand special forms. * Use pattern-matching style in process/step*.txt. Unresolved issues: c.2: unable to reproduce with gcc 11.12.0. elm: the directory is unchanged. groovy: sometimes fail, but not on each rebuild. nasm: fails some new soft tests, but the issue is unreproducible when running the interpreter manually. objpascal: unreproducible with fpc 3.2.2. ocaml: unreproducible with 4.11.1. perl6: unreproducible with rakudo 2021.09. Unrelated changes: Reduce diff betweens steps. Prevent defmacro! from mutating functions: c forth logo miniMAL vb. dart: fix recent errors and warnings ocaml: remove metadata from symbols. Improve the logo implementation. Encapsulate all representation in types.lg and env.lg, unwrap numbers. Replace some manual iterations with logo control structures. Reduce the diff between steps. Use native iteration in env_get and env_map Rewrite the reader with less temporary strings. Reduce the number of temporary lists (for example, reverse iteration with butlast requires O(n^2) allocations). It seems possible to remove a few exceptions: GC settings (Dockerfile), NO_SELF_HOSTING (IMPLS.yml) and step5_EXCLUDES (Makefile.impls) .
2022-01-10 00:15:40 +01:00
function MAL_EVAL($ast, $env) {
while (true) {
$dbgenv = $env->find("DEBUG-EVAL");
if ($dbgenv) {
$dbgeval = $env->get("DEBUG-EVAL");
if ($dbgeval !== NULL && $dbgeval !== false) {
echo "EVAL: " . _pr_str($ast) . "\n";
}
}
All: split types into types, env, printer, core. - types: low-level mapping to the implementation language. - core: functions on types that are exposed directly to mal. - printer: implementation called by pr-str, str, prn, println. - env: the environment implementation - Also, unindent all TCO while loops so that the diff of step4 and step5 are minimized.
2014-04-02 22:23:37 -05:00
if (_symbol_Q($ast)) {
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) .
2022-01-10 00:15:40 +01:00
return $env->get($ast->value);
} elseif (_vector_Q($ast)) {
All: split types into types, env, printer, core. - types: low-level mapping to the implementation language. - core: functions on types that are exposed directly to mal. - printer: implementation called by pr-str, str, prn, println. - env: the environment implementation - Also, unindent all TCO while loops so that the diff of step4 and step5 are minimized.
2014-04-02 22:23:37 -05:00
$el = _vector();
Current state of mal for Clojure West lighting talk.
2014-03-24 16:32:24 -05:00
foreach ($ast as $a) { $el[] = MAL_EVAL($a, $env); }
return $el;
All: split types into types, env, printer, core. - types: low-level mapping to the implementation language. - core: functions on types that are exposed directly to mal. - printer: implementation called by pr-str, str, prn, println. - env: the environment implementation - Also, unindent all TCO while loops so that the diff of step4 and step5 are minimized.
2014-04-02 22:23:37 -05:00
} elseif (_hash_map_Q($ast)) {
$new_hm = _hash_map();
Current state of mal for Clojure West lighting talk.
2014-03-24 16:32:24 -05:00
foreach (array_keys($ast->getArrayCopy()) as $key) {
$new_hm[$key] = MAL_EVAL($ast[$key], $env);
}
return $new_hm;
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: $ast" at the top of EVAL if DEBUG-EVAL exists in the MAL environment. * Remove macroexpand and quasiquoteexpand special forms. * Use pattern-matching style in process/step*.txt. Unresolved issues: c.2: unable to reproduce with gcc 11.12.0. elm: the directory is unchanged. groovy: sometimes fail, but not on each rebuild. nasm: fails some new soft tests, but the issue is unreproducible when running the interpreter manually. objpascal: unreproducible with fpc 3.2.2. ocaml: unreproducible with 4.11.1. perl6: unreproducible with rakudo 2021.09. Unrelated changes: Reduce diff betweens steps. Prevent defmacro! from mutating functions: c forth logo miniMAL vb. dart: fix recent errors and warnings ocaml: remove metadata from symbols. Improve the logo implementation. Encapsulate all representation in types.lg and env.lg, unwrap numbers. Replace some manual iterations with logo control structures. Reduce the diff between steps. Use native iteration in env_get and env_map Rewrite the reader with less temporary strings. Reduce the number of temporary lists (for example, reverse iteration with butlast requires O(n^2) allocations). It seems possible to remove a few exceptions: GC settings (Dockerfile), NO_SELF_HOSTING (IMPLS.yml) and step5_EXCLUDES (Makefile.impls) .
2022-01-10 00:15:40 +01:00
} elseif (!_list_Q($ast)) {
Current state of mal for Clojure West lighting talk.
2014-03-24 16:32:24 -05:00
return $ast;
}
php: Fix exception on literal empty list Issue #190
2016-03-30 08:56:24 -04:00
if ($ast->count() === 0) {
return $ast;
}
All: split types into types, env, printer, core. - types: low-level mapping to the implementation language. - core: functions on types that are exposed directly to mal. - printer: implementation called by pr-str, str, prn, println. - env: the environment implementation - Also, unindent all TCO while loops so that the diff of step4 and step5 are minimized.
2014-04-02 22:23:37 -05:00
// apply list
$a0 = $ast[0];
$a0v = (_symbol_Q($a0) ? $a0->value : $a0);
switch ($a0v) {
case "def!":
$res = MAL_EVAL($ast[2], $env);
All: add keywords. Also, fix nth and count to match cloure.
2014-12-18 20:33:49 -06:00
return $env->set($ast[1], $res);
All: split types into types, env, printer, core. - types: low-level mapping to the implementation language. - core: functions on types that are exposed directly to mal. - printer: implementation called by pr-str, str, prn, println. - env: the environment implementation - Also, unindent all TCO while loops so that the diff of step4 and step5 are minimized.
2014-04-02 22:23:37 -05:00
case "let*":
$a1 = $ast[1];
$let_env = new Env($env);
for ($i=0; $i < count($a1); $i+=2) {
All: add keywords. Also, fix nth and count to match cloure.
2014-12-18 20:33:49 -06:00
$let_env->set($a1[$i], MAL_EVAL($a1[$i+1], $let_env));
Current state of mal for Clojure West lighting talk.
2014-03-24 16:32:24 -05:00
}
All: TCO let* and quasiquote.
2014-04-23 21:59:50 -05:00
$ast = $ast[2];
$env = $let_env;
break; // Continue loop (TCO)
All: split types into types, env, printer, core. - types: low-level mapping to the implementation language. - core: functions on types that are exposed directly to mal. - printer: implementation called by pr-str, str, prn, println. - env: the environment implementation - Also, unindent all TCO while loops so that the diff of step4 and step5 are minimized.
2014-04-02 22:23:37 -05:00
case "do":
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: $ast" at the top of EVAL if DEBUG-EVAL exists in the MAL environment. * Remove macroexpand and quasiquoteexpand special forms. * Use pattern-matching style in process/step*.txt. Unresolved issues: c.2: unable to reproduce with gcc 11.12.0. elm: the directory is unchanged. groovy: sometimes fail, but not on each rebuild. nasm: fails some new soft tests, but the issue is unreproducible when running the interpreter manually. objpascal: unreproducible with fpc 3.2.2. ocaml: unreproducible with 4.11.1. perl6: unreproducible with rakudo 2021.09. Unrelated changes: Reduce diff betweens steps. Prevent defmacro! from mutating functions: c forth logo miniMAL vb. dart: fix recent errors and warnings ocaml: remove metadata from symbols. Improve the logo implementation. Encapsulate all representation in types.lg and env.lg, unwrap numbers. Replace some manual iterations with logo control structures. Reduce the diff between steps. Use native iteration in env_get and env_map Rewrite the reader with less temporary strings. Reduce the number of temporary lists (for example, reverse iteration with butlast requires O(n^2) allocations). It seems possible to remove a few exceptions: GC settings (Dockerfile), NO_SELF_HOSTING (IMPLS.yml) and step5_EXCLUDES (Makefile.impls) .
2022-01-10 00:15:40 +01:00
foreach ($ast->slice(1, -1) as $a) { MAL_EVAL($a, $env); }
All: split types into types, env, printer, core. - types: low-level mapping to the implementation language. - core: functions on types that are exposed directly to mal. - printer: implementation called by pr-str, str, prn, println. - env: the environment implementation - Also, unindent all TCO while loops so that the diff of step4 and step5 are minimized.
2014-04-02 22:23:37 -05:00
$ast = $ast[count($ast)-1];
All: TCO let* and quasiquote.
2014-04-23 21:59:50 -05:00
break; // Continue loop (TCO)
All: split types into types, env, printer, core. - types: low-level mapping to the implementation language. - core: functions on types that are exposed directly to mal. - printer: implementation called by pr-str, str, prn, println. - env: the environment implementation - Also, unindent all TCO while loops so that the diff of step4 and step5 are minimized.
2014-04-02 22:23:37 -05:00
case "if":
$cond = MAL_EVAL($ast[1], $env);
if ($cond === NULL || $cond === false) {
if (count($ast) === 4) { $ast = $ast[3]; }
else { $ast = NULL; }
} else {
$ast = $ast[2];
}
All: TCO let* and quasiquote.
2014-04-23 21:59:50 -05:00
break; // Continue loop (TCO)
All: split types into types, env, printer, core. - types: low-level mapping to the implementation language. - core: functions on types that are exposed directly to mal. - printer: implementation called by pr-str, str, prn, println. - env: the environment implementation - Also, unindent all TCO while loops so that the diff of step4 and step5 are minimized.
2014-04-02 22:23:37 -05:00
case "fn*":
return _function('MAL_EVAL', 'native',
Fix metadata on functions. - Don't use metadata to store ast, env, params data. - In Clojure, store metadata on the :meta key of the real metadata. This also allows using any datatype as metadata.
2014-04-09 23:58:27 -05:00
$ast[2], $env, $ast[1]);
All: split types into types, env, printer, core. - types: low-level mapping to the implementation language. - core: functions on types that are exposed directly to mal. - printer: implementation called by pr-str, str, prn, println. - env: the environment implementation - Also, unindent all TCO while loops so that the diff of step4 and step5 are minimized.
2014-04-02 22:23:37 -05:00
default:
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) .
2022-01-10 00:15:40 +01:00
$el = [];
foreach ($ast as $a) { $el[] = MAL_EVAL($a, $env); }
All: split types into types, env, printer, core. - types: low-level mapping to the implementation language. - core: functions on types that are exposed directly to mal. - printer: implementation called by pr-str, str, prn, println. - env: the environment implementation - Also, unindent all TCO while loops so that the diff of step4 and step5 are minimized.
2014-04-02 22:23:37 -05:00
$f = $el[0];
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) .
2022-01-10 00:15:40 +01:00
$args = array_slice($el, 1);
All: split types into types, env, printer, core. - types: low-level mapping to the implementation language. - core: functions on types that are exposed directly to mal. - printer: implementation called by pr-str, str, prn, println. - env: the environment implementation - Also, unindent all TCO while loops so that the diff of step4 and step5 are minimized.
2014-04-02 22:23:37 -05:00
if ($f->type === 'native') {
Fix metadata on functions. - Don't use metadata to store ast, env, params data. - In Clojure, store metadata on the :meta key of the real metadata. This also allows using any datatype as metadata.
2014-04-09 23:58:27 -05:00
$ast = $f->ast;
$env = $f->gen_env($args);
All: TCO let* and quasiquote.
2014-04-23 21:59:50 -05:00
// Continue loop (TCO)
All: split types into types, env, printer, core. - types: low-level mapping to the implementation language. - core: functions on types that are exposed directly to mal. - printer: implementation called by pr-str, str, prn, println. - env: the environment implementation - Also, unindent all TCO while loops so that the diff of step4 and step5 are minimized.
2014-04-02 22:23:37 -05:00
} else {
return $f->apply($args);
}
}
Current state of mal for Clojure West lighting talk.
2014-03-24 16:32:24 -05:00
}
}
// print
function MAL_PRINT($exp) {
All step0: add test, fix bugs, remove step0 eval.
2015-03-07 09:04:07 -06:00
return _pr_str($exp, True);
Current state of mal for Clojure West lighting talk.
2014-03-24 16:32:24 -05:00
}
// repl
$repl_env = new Env(NULL);
function rep($str) {
global $repl_env;
return MAL_PRINT(MAL_EVAL(READ($str), $repl_env));
}
All: move some fns to core. Major cleanup. - Don't import/require core until step4. - Define cond/or macros from step8
2014-04-16 23:57:50 -05:00
// core.php: defined using PHP
foreach ($core_ns as $k=>$v) {
All: add keywords. Also, fix nth and count to match cloure.
2014-12-18 20:33:49 -06:00
$repl_env->set(_symbol($k), _function($v));
Current state of mal for Clojure West lighting talk.
2014-03-24 16:32:24 -05:00
}
All: add keywords. Also, fix nth and count to match cloure.
2014-12-18 20:33:49 -06:00
$repl_env->set(_symbol('eval'), _function(function($ast) {
Current state of mal for Clojure West lighting talk.
2014-03-24 16:32:24 -05:00
global $repl_env; return MAL_EVAL($ast, $repl_env);
All: move some fns to core. Major cleanup. - Don't import/require core until step4. - Define cond/or macros from step8
2014-04-16 23:57:50 -05:00
}));
All: *ARGV* and *host-language*. Misc syncing/fixes.
2014-04-19 13:04:09 -05:00
$_argv = _list();
for ($i=2; $i < count($argv); $i++) {
$_argv->append($argv[$i]);
}
All: add keywords. Also, fix nth and count to match cloure.
2014-12-18 20:33:49 -06:00
$repl_env->set(_symbol('*ARGV*'), $_argv);
Current state of mal for Clojure West lighting talk.
2014-03-24 16:32:24 -05:00
All: move some fns to core. Major cleanup. - Don't import/require core until step4. - Define cond/or macros from step8
2014-04-16 23:57:50 -05:00
// core.mal: defined using the language itself
Current state of mal for Clojure West lighting talk.
2014-03-24 16:32:24 -05:00
rep("(def! not (fn* (a) (if a false true)))");
load-file: accept empty file or final comment, return nil Let `load-file` append a new line in case last line contains a comment. Also append `nil` so that the return value is predictible. Remove the existing explicit `nil` from existing sources. Adapt documentation and tests.
2019-07-15 23:57:02 +02:00
rep("(def! load-file (fn* (f) (eval (read-string (str \"(do \" (slurp f) \"\nnil)\")))))");
Current state of mal for Clojure West lighting talk.
2014-03-24 16:32:24 -05:00
if (count($argv) > 1) {
All: *ARGV* and *host-language*. Misc syncing/fixes.
2014-04-19 13:04:09 -05:00
rep('(load-file "' . $argv[1] . '")');
All: move some fns to core. Major cleanup. - Don't import/require core until step4. - Define cond/or macros from step8
2014-04-16 23:57:50 -05:00
exit(0);
Current state of mal for Clojure West lighting talk.
2014-03-24 16:32:24 -05:00
}
All: *ARGV* and *host-language*. Misc syncing/fixes.
2014-04-19 13:04:09 -05:00
// repl loop
All: move some fns to core. Major cleanup. - Don't import/require core until step4. - Define cond/or macros from step8
2014-04-16 23:57:50 -05:00
do {
try {
$line = mal_readline("user> ");
if ($line === NULL) { break; }
if ($line !== "") {
All step0: add test, fix bugs, remove step0 eval.
2015-03-07 09:04:07 -06:00
print(rep($line) . "\n");
All: move some fns to core. Major cleanup. - Don't import/require core until step4. - Define cond/or macros from step8
2014-04-16 23:57:50 -05:00
}
} catch (BlankException $e) {
continue;
} catch (Exception $e) {
echo "Error: " . $e->getMessage() . "\n";
echo $e->getTraceAsString() . "\n";
}
} while (true);
All: *ARGV* and *host-language*. Misc syncing/fixes.
2014-04-19 13:04:09 -05:00
?>
Reference in New Issue Copy Permalink