altos/lisp: working on lexical scoping

[fw/altos] / src / lisp / ao_lisp_make_const.c

diff --git a/src/lisp/ao_lisp_make_const.c b/src/lisp/ao_lisp_make_const.c
index 8d3e03a913f7c349c0daccc3cc0cb0353f62274d..501052b91b991a0c4533e86f4c39f9cd1d6f3e4e 100644 (file)
--- a/src/lisp/ao_lisp_make_const.c
+++ b/src/lisp/ao_lisp_make_const.c
@@ -33,53 +33,109 @@ struct builtin_func {
 };
 
 struct builtin_func funcs[] = {
-       "car",          AO_LISP_LEXPR,  builtin_car,
-       "cdr",          AO_LISP_LEXPR,  builtin_cdr,
-       "cons",         AO_LISP_LEXPR,  builtin_cons,
-       "quote",        AO_LISP_NLAMBDA,builtin_quote,
-       "set",          AO_LISP_LEXPR,  builtin_set,
-       "setq",         AO_LISP_MACRO,  builtin_setq,
-       "print",        AO_LISP_LEXPR,  builtin_print,
-       "+",            AO_LISP_LEXPR,  builtin_plus,
-       "-",            AO_LISP_LEXPR,  builtin_minus,
-       "*",            AO_LISP_LEXPR,  builtin_times,
-       "/",            AO_LISP_LEXPR,  builtin_divide,
-       "%",            AO_LISP_LEXPR,  builtin_mod
+       "lambda",       AO_LISP_FUNC_NLAMBDA,   builtin_lambda,
+       "lexpr",        AO_LISP_FUNC_NLAMBDA,   builtin_lexpr,
+       "nlambda",      AO_LISP_FUNC_NLAMBDA,   builtin_nlambda,
+       "macro",        AO_LISP_FUNC_NLAMBDA,   builtin_macro,
+       "car",          AO_LISP_FUNC_LAMBDA,    builtin_car,
+       "cdr",          AO_LISP_FUNC_LAMBDA,    builtin_cdr,
+       "cons",         AO_LISP_FUNC_LAMBDA,    builtin_cons,
+       "last",         AO_LISP_FUNC_LAMBDA,    builtin_last,
+       "quote",        AO_LISP_FUNC_NLAMBDA,   builtin_quote,
+       "set",          AO_LISP_FUNC_LAMBDA,    builtin_set,
+       "setq",         AO_LISP_FUNC_MACRO,     builtin_setq,
+       "cond",         AO_LISP_FUNC_NLAMBDA,   builtin_cond,
+       "print",        AO_LISP_FUNC_LEXPR,     builtin_print,
+       "patom",        AO_LISP_FUNC_LEXPR,     builtin_patom,
+       "+",            AO_LISP_FUNC_LEXPR,     builtin_plus,
+       "-",            AO_LISP_FUNC_LEXPR,     builtin_minus,
+       "*",            AO_LISP_FUNC_LEXPR,     builtin_times,
+       "/",            AO_LISP_FUNC_LEXPR,     builtin_divide,
+       "%",            AO_LISP_FUNC_LEXPR,     builtin_mod,
+       "=",            AO_LISP_FUNC_LEXPR,     builtin_equal,
+       "<",            AO_LISP_FUNC_LEXPR,     builtin_less,
+       ">",            AO_LISP_FUNC_LEXPR,     builtin_greater,
+       "<=",           AO_LISP_FUNC_LEXPR,     builtin_less_equal,
+       ">=",           AO_LISP_FUNC_LEXPR,     builtin_greater_equal,
 };
 
 #define N_FUNC (sizeof funcs / sizeof funcs[0])
 
+/* Syntactic atoms */
+char *atoms[] = {
+       "lambda",
+       "nlambda",
+       "lexpr",
+       "macro"
+};
+
+#define N_ATOM (sizeof atoms / sizeof atoms[0])
+
+struct ao_lisp_frame   *globals;
+
+static int
+is_atom(int offset)
+{
+       struct ao_lisp_atom *a;
+
+       for (a = ao_lisp_atoms; a; a = ao_lisp_poly_atom(a->next))
+               if (((uint8_t *) a->name - ao_lisp_const) == offset)
+                       return strlen(a->name);
+       return 0;
+}
+
 int
 main(int argc, char **argv)
 {
-       int     f, o;
-       ao_poly atom, val;
+       int     f, o, i;
+       ao_poly sexpr, val;
        struct ao_lisp_atom     *a;
+       struct ao_lisp_builtin  *b;
+       int     in_atom;
 
+       printf("/*\n");
+       printf(" * Generated file, do not edit\n");
        for (f = 0; f < N_FUNC; f++) {
-               struct ao_lisp_builtin  *b = ao_lisp_make_builtin(funcs[f].func, funcs[f].args);
-               struct ao_lisp_atom     *a = ao_lisp_atom_intern(funcs[f].name);
-               a->val = ao_lisp_builtin_poly(b);
+               b = ao_lisp_make_builtin(funcs[f].func, funcs[f].args);
+               a = ao_lisp_atom_intern(funcs[f].name);
+               ao_lisp_atom_set(ao_lisp_atom_poly(a),
+                                ao_lisp_builtin_poly(b));
        }
 
+       /* atoms for syntax */
+       for (i = 0; i < N_ATOM; i++)
+               (void) ao_lisp_atom_intern(atoms[i]);
+
+       /* boolean constants */
+       ao_lisp_atom_set(ao_lisp_atom_poly(ao_lisp_atom_intern("nil")),
+                        AO_LISP_NIL);
+       a = ao_lisp_atom_intern("t");
+       ao_lisp_atom_set(ao_lisp_atom_poly(a),
+                        ao_lisp_atom_poly(a));
+
        for (;;) {
-               atom = ao_lisp_read();
-               if (!atom)
+               sexpr = ao_lisp_read();
+               if (!sexpr)
                        break;
-               val = ao_lisp_read();
-               if (!val)
-                       break;
-               if (ao_lisp_poly_type(atom) != AO_LISP_ATOM) {
-                       fprintf(stderr, "input must be atom val pairs\n");
+               printf ("sexpr: ");
+               ao_lisp_poly_print(sexpr);
+               printf("\n");
+               val = ao_lisp_eval(sexpr);
+               if (ao_lisp_exception)
                        exit(1);
-               }
-               ao_lisp_poly_atom(atom)->val = val;
+               printf("\t");
+               ao_lisp_poly_print(val);
+               printf("\n");
        }
 
-       printf("/* constant objects, all referenced from atoms */\n\n");
+       /* Reduce to referenced values */
+       ao_lisp_collect();
+       printf(" */\n");
+
        printf("#define AO_LISP_POOL_CONST %d\n", ao_lisp_top);
        printf("extern const uint8_t ao_lisp_const[AO_LISP_POOL_CONST] __attribute__((aligned(4)));\n");
        printf("#define ao_builtin_atoms 0x%04x\n", ao_lisp_atom_poly(ao_lisp_atoms));
+       printf("#define ao_builtin_frame 0x%04x\n", ao_lisp_frame_poly(ao_lisp_frame_global));
 
        for (a = ao_lisp_atoms; a; a = ao_lisp_poly_atom(a->next)) {
                char    *n = a->name, c;
@@ -101,10 +157,14 @@ main(int argc, char **argv)
                else
                        printf(" ");
                c = ao_lisp_const[o];
-               if (' ' < c && c <= '~' && c != '\'')
+               if (!in_atom)
+                       in_atom = is_atom(o);
+               if (in_atom) {
                        printf (" '%c',", c);
-               else
+                       in_atom--;
+               } else {
                        printf("0x%02x,", c);
+               }
        }
        printf("\n};\n");
        printf("#endif /* AO_LISP_CONST_BITS */\n");