swissChili | 8cfb7c4 | 2021-04-18 21:17:58 -0700 | [diff] [blame] | 1 | /* -*- mode:c -*- */ |
| 2 | |
swissChili | ca107a0 | 2021-04-14 12:07:30 -0700 | [diff] [blame] | 3 | #include "compiler.h" |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 4 | #include "gc.h" |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 5 | #include "lib/std.h" |
| 6 | #include "lisp.h" |
| 7 | #include "plat/plat.h" |
swissChili | ca107a0 | 2021-04-14 12:07:30 -0700 | [diff] [blame] | 8 | |
| 9 | #include <dasm_proto.h> |
| 10 | #include <dasm_x86.h> |
| 11 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 12 | #include <libgen.h> |
| 13 | #include <stdio.h> |
swissChili | 923b536 | 2021-05-09 20:31:43 -0700 | [diff] [blame] | 14 | #include <stdlib.h> |
| 15 | #include <string.h> |
| 16 | |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 17 | #define value_size sizeof(value_t) |
swissChili | ca107a0 | 2021-04-14 12:07:30 -0700 | [diff] [blame] | 18 | |
| 19 | |.arch x86; |
| 20 | |
| 21 | |.macro setup, nvars; |
swissChili | 53e7cd1 | 2021-08-02 21:55:53 -0700 | [diff] [blame] | 22 | |1:; |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 23 | | push ebp; |
swissChili | ca107a0 | 2021-04-14 12:07:30 -0700 | [diff] [blame] | 24 | | mov ebp, esp; |
swissChili | 8cfb7c4 | 2021-04-18 21:17:58 -0700 | [diff] [blame] | 25 | | sub esp, (value_size * nvars); |
swissChili | ca107a0 | 2021-04-14 12:07:30 -0700 | [diff] [blame] | 26 | |.endmacro; |
| 27 | |
| 28 | |.macro cleanup; |
| 29 | | mov esp, ebp; |
| 30 | | pop ebp; |
| 31 | | ret; |
| 32 | |.endmacro; |
| 33 | |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 34 | |.macro call_extern, address; |
swissChili | 53e7cd1 | 2021-08-02 21:55:53 -0700 | [diff] [blame] | 35 | | call &address; |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 36 | |.endmacro; |
| 37 | |
swissChili | ca107a0 | 2021-04-14 12:07:30 -0700 | [diff] [blame] | 38 | dasm_State *d; |
| 39 | unsigned int npc = 8; |
| 40 | |
swissChili | 9e57da4 | 2021-06-15 22:22:46 -0700 | [diff] [blame] | 41 | |.macro run_gc; |
swissChili | e9fec8b | 2021-06-22 13:59:33 -0700 | [diff] [blame] | 42 | | mov eax, esp; |
swissChili | 9e57da4 | 2021-06-15 22:22:46 -0700 | [diff] [blame] | 43 | | push ebp; |
swissChili | e9fec8b | 2021-06-22 13:59:33 -0700 | [diff] [blame] | 44 | | push eax; |
swissChili | 9e57da4 | 2021-06-15 22:22:46 -0700 | [diff] [blame] | 45 | | mov eax, _do_gc; |
| 46 | | call eax; |
| 47 | |.endmacro; |
swissChili | 6d6525e | 2021-06-15 21:20:53 -0700 | [diff] [blame] | 48 | |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 49 | struct function *find_function(struct environment *env, char *name) |
swissChili | ca107a0 | 2021-04-14 12:07:30 -0700 | [diff] [blame] | 50 | { |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 51 | struct function *f; |
swissChili | ca107a0 | 2021-04-14 12:07:30 -0700 | [diff] [blame] | 52 | |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 53 | for (f = env->first; f && strcmp(f->name, name); f = f->prev) |
swissChili | ca107a0 | 2021-04-14 12:07:30 -0700 | [diff] [blame] | 54 | { |
swissChili | ca107a0 | 2021-04-14 12:07:30 -0700 | [diff] [blame] | 55 | } |
| 56 | |
| 57 | return f; |
| 58 | } |
| 59 | |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 60 | unsigned int local_alloc(struct local *local) |
| 61 | { |
| 62 | for (int i = 0; i < local->num_stack_slots; i++) |
| 63 | { |
| 64 | if (local->stack_slots[i] == false) |
| 65 | { |
| 66 | local->stack_slots[i] = true; |
| 67 | |
| 68 | if (i >= local->num_stack_entries) |
| 69 | local->num_stack_entries++; |
| 70 | |
| 71 | return i; |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | int old_size = local->num_stack_slots; |
| 76 | local->num_stack_slots += 4; |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 77 | local->stack_slots = |
| 78 | realloc(local->stack_slots, local->num_stack_slots * sizeof(bool)); |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 79 | // unreadable: set the remaining slots to unused |
| 80 | memset(local->stack_slots + old_size, 0, local->num_stack_slots - old_size); |
| 81 | local->stack_slots[old_size] = true; |
| 82 | |
| 83 | return old_size; |
| 84 | } |
| 85 | |
| 86 | void local_free(struct local *local, unsigned int slot) |
| 87 | { |
| 88 | local->stack_slots[slot] = false; |
| 89 | } |
| 90 | |
swissChili | 708d4c4 | 2021-07-04 17:40:07 -0700 | [diff] [blame] | 91 | void del_local(struct local *local) |
| 92 | { |
| 93 | free(local->stack_slots); |
| 94 | |
| 95 | for (struct variable *next, *f = local->first; f; f = next) |
| 96 | { |
| 97 | next = f->prev; |
| 98 | free(f); |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | void del_env(struct environment *env) |
| 103 | { |
| 104 | for (struct function *next, *f = env->first; f; f = next) |
| 105 | { |
| 106 | next = f->prev; |
| 107 | // We're not gonna bother munmap()ing the function |
swissChili | c0acce4 | 2022-07-31 13:38:17 -0700 | [diff] [blame] | 108 | if (f->args) |
| 109 | free(f->args); |
swissChili | 708d4c4 | 2021-07-04 17:40:07 -0700 | [diff] [blame] | 110 | free(f); |
| 111 | } |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 112 | |
| 113 | for (struct loaded_file *next, *l = env->first_loaded; l; l = next) |
| 114 | { |
| 115 | next = l->previous; |
| 116 | free(l->resolved_path); |
| 117 | free(l); |
| 118 | } |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 119 | |
| 120 | free(env); |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | void add_load(struct environment *env, char *path) |
| 124 | { |
| 125 | static char buffer[512]; |
| 126 | long size = readlink(path, buffer, 512); |
| 127 | buffer[size] = '\0'; |
| 128 | char *resolved = strdup(buffer); |
| 129 | |
| 130 | struct loaded_file *f = malloc(sizeof(struct loaded_file)); |
| 131 | f->resolved_path = resolved; |
| 132 | f->previous = env->first_loaded; |
| 133 | env->first_loaded = f; |
swissChili | 708d4c4 | 2021-07-04 17:40:07 -0700 | [diff] [blame] | 134 | } |
| 135 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 136 | struct error compile_function(value_t args, enum namespace namespace, |
| 137 | struct environment *env, |
| 138 | struct local *local_out, |
| 139 | struct local *local_parent, |
| 140 | struct args **args_out, char *name, |
| 141 | char *path, |
| 142 | dasm_State **state) |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 143 | { |
swissChili | a7568dc | 2021-08-08 16:52:52 -0700 | [diff] [blame] | 144 | UNUSED(namespace); |
| 145 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 146 | E_INIT(); |
| 147 | |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 148 | dasm_State *d; |
| 149 | dasm_State **Dst = &d; |
| 150 | |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 151 | |.section code, imports; |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 152 | dasm_init(&d, DASM_MAXSECTION); |
| 153 | |
| 154 | |.globals lbl_; |
| 155 | void *labels[lbl__MAX]; |
| 156 | dasm_setupglobal(&d, labels, lbl__MAX); |
| 157 | |
| 158 | |.actionlist lisp_actions; |
| 159 | dasm_setup(&d, lisp_actions); |
| 160 | |
| 161 | struct local local; |
| 162 | local.parent = NULL; |
| 163 | local.first = NULL; |
| 164 | local.num_vars = 0; |
| 165 | local.npc = 8; |
| 166 | local.nextpc = 0; |
| 167 | local.stack_slots = malloc(sizeof(bool) * 4); |
| 168 | memset(local.stack_slots, 0, sizeof(bool) * 4); |
| 169 | local.num_stack_slots = 4; |
| 170 | local.num_stack_entries = 0; |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 171 | local.num_closure_slots = 0; |
| 172 | local.parent = local_parent; |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 173 | local.current_function_name = name; |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 174 | local.current_file_path = path; |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 175 | |
| 176 | dasm_growpc(&d, local.npc); |
| 177 | |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 178 | value_t arglist = car(args); |
| 179 | value_t body = cdr(args); |
| 180 | |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 181 | // This will add the arguments to local too. |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 182 | struct args *ar; |
| 183 | TRY(list_to_args(env, arglist, &local, &ar)); |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 184 | local.args = ar; |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 185 | |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 186 | if (!ar) |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 187 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 188 | NEARVAL(arglist); |
| 189 | THROW(EMALFORMED, "Malformed argument list"); |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 190 | } |
| 191 | |
| 192 | for (value_t body_ = body; !nilp(body_); body_ = cdr(body_)) |
| 193 | { |
swissChili | fc5c941 | 2021-08-08 19:08:26 -0700 | [diff] [blame] | 194 | TRY(walk_and_alloc(env, &local, carref(body_), false)); |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 195 | } |
| 196 | |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 197 | | setup (local.num_stack_entries); |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 198 | |
| 199 | memset(local.stack_slots, 0, local.num_stack_slots * sizeof(bool)); |
| 200 | local.num_stack_entries = 0; |
| 201 | |
| 202 | for (; !nilp(body); body = cdr(body)) |
| 203 | { |
swissChili | b51552c | 2021-08-03 10:23:37 -0700 | [diff] [blame] | 204 | bool tail = nilp(cdr(body)); |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 205 | TRY(compile_expression(env, &local, car(body), tail, Dst)); |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 206 | } |
| 207 | |
| 208 | | cleanup; |
| 209 | |
| 210 | if (local_out) |
| 211 | *local_out = local; |
swissChili | c0acce4 | 2022-07-31 13:38:17 -0700 | [diff] [blame] | 212 | else |
| 213 | del_local(&local); |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 214 | |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 215 | if (args_out) |
| 216 | *args_out = ar; |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 217 | |
swissChili | c0acce4 | 2022-07-31 13:38:17 -0700 | [diff] [blame] | 218 | if (!local_out && !args_out) |
| 219 | free(ar); |
| 220 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 221 | *state = d; |
| 222 | |
| 223 | OKAY(); |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 224 | } |
| 225 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 226 | struct error compile_tl(value_t val, struct environment *env, char *fname) |
swissChili | ca107a0 | 2021-04-14 12:07:30 -0700 | [diff] [blame] | 227 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 228 | E_INIT(); |
| 229 | |
| 230 | NEARVAL(val); |
| 231 | |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 232 | if (!listp(val)) |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 233 | { |
| 234 | THROW(EEXPECTED, "Top level form must be a list"); |
| 235 | } |
swissChili | ca107a0 | 2021-04-14 12:07:30 -0700 | [diff] [blame] | 236 | |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 237 | value_t form = car(val); |
| 238 | value_t args = cdr(val); |
| 239 | |
swissChili | 2999dd1 | 2021-07-02 14:19:53 -0700 | [diff] [blame] | 240 | if (symstreq(form, "defun") || symstreq(form, "defmacro")) |
swissChili | 8fc5e2f | 2021-04-22 13:45:10 -0700 | [diff] [blame] | 241 | { |
swissChili | 2999dd1 | 2021-07-02 14:19:53 -0700 | [diff] [blame] | 242 | enum namespace namespace = NS_FUNCTION; |
| 243 | |
| 244 | if (symstreq(form, "defmacro")) |
swissChili | a89ee44 | 2021-08-04 20:54:51 -0700 | [diff] [blame] | 245 | namespace = NS_MACRO; |
swissChili | 2999dd1 | 2021-07-02 14:19:53 -0700 | [diff] [blame] | 246 | |
swissChili | 8fc5e2f | 2021-04-22 13:45:10 -0700 | [diff] [blame] | 247 | struct local local; |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 248 | struct args *a; |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 249 | char *name = (char *)(car(args) ^ SYMBOL_TAG); |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 250 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 251 | dasm_State *d; |
| 252 | TRY(compile_function(cdr(args), namespace, env, &local, |
| 253 | NULL, &a, name, fname, &d)); |
swissChili | a820dea | 2021-05-09 16:46:55 -0700 | [diff] [blame] | 254 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 255 | add_function(env, name, link_program(&d), a, namespace); |
swissChili | 8fc5e2f | 2021-04-22 13:45:10 -0700 | [diff] [blame] | 256 | |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 257 | dasm_free(&d); |
swissChili | 708d4c4 | 2021-07-04 17:40:07 -0700 | [diff] [blame] | 258 | del_local(&local); |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 259 | } |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 260 | else if (symstreq(form, "progn")) |
| 261 | { |
| 262 | for (value_t val = args; !nilp(val); val = cdr(val)) |
| 263 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 264 | TRY(compile_tl(car(val), env, fname)); |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 265 | } |
| 266 | } |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 267 | else if (symstreq(form, "load")) |
| 268 | { |
| 269 | if (length(args) != 1) |
| 270 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 271 | NEARVAL(args); |
| 272 | THROW(EARGS, "load expects exactly 1 argument, %d given", |
| 273 | length(args)); |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 274 | } |
| 275 | load_relative(env, fname, car(args)); |
| 276 | } |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 277 | |
| 278 | OKAY(); |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 279 | } |
| 280 | |
swissChili | fc5c941 | 2021-08-08 19:08:26 -0700 | [diff] [blame] | 281 | struct error walk_and_alloc(struct environment *env, struct local *local, value_t *bp, bool quoted) |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 282 | { |
swissChili | fc5c941 | 2021-08-08 19:08:26 -0700 | [diff] [blame] | 283 | // Note: this kind of sucks. Some of the quote-handling code is |
| 284 | // duplicated here and compile_expression. TODO: refactor |
| 285 | // eventually. |
| 286 | |
swissChili | 36f2c69 | 2021-08-08 14:31:44 -0700 | [diff] [blame] | 287 | E_INIT(); |
| 288 | |
| 289 | value_t body = *bp; |
| 290 | |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 291 | if (!listp(body)) |
swissChili | 36f2c69 | 2021-08-08 14:31:44 -0700 | [diff] [blame] | 292 | OKAY(); |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 293 | |
| 294 | value_t args = cdr(body); |
| 295 | |
swissChili | fc5c941 | 2021-08-08 19:08:26 -0700 | [diff] [blame] | 296 | if (!quoted && symstreq(car(body), "let1")) |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 297 | { |
| 298 | int slot = local_alloc(local); |
| 299 | |
| 300 | value_t expr = cdr(args); |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 301 | for (; !nilp(expr); expr = cdr(expr)) |
| 302 | { |
swissChili | fc5c941 | 2021-08-08 19:08:26 -0700 | [diff] [blame] | 303 | walk_and_alloc(env, local, carref(expr), false); |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 304 | } |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 305 | |
| 306 | local_free(local, slot); |
| 307 | } |
swissChili | fc5c941 | 2021-08-08 19:08:26 -0700 | [diff] [blame] | 308 | else if (!quoted && symstreq(car(body), "lambda")) |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 309 | { |
| 310 | // We don't want to walk the lambda because it's another function. When |
| 311 | // the lambda is compiled it will be walked. |
swissChili | 36f2c69 | 2021-08-08 14:31:44 -0700 | [diff] [blame] | 312 | OKAY(); |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 313 | } |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 314 | else |
| 315 | { |
swissChili | fc5c941 | 2021-08-08 19:08:26 -0700 | [diff] [blame] | 316 | if (quoted) |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 317 | { |
swissChili | fc5c941 | 2021-08-08 19:08:26 -0700 | [diff] [blame] | 318 | if (symstreq(car(body), "unquote") || symstreq(car(body), "unquote-splice")) |
| 319 | { |
| 320 | for (value_t b = cdr(body); !nilp(b); b = cdr(b)) |
| 321 | { |
| 322 | walk_and_alloc(env, local, carref(b), false); |
| 323 | } |
| 324 | } |
swissChili | 36f2c69 | 2021-08-08 14:31:44 -0700 | [diff] [blame] | 325 | } |
| 326 | else |
| 327 | { |
swissChili | fc5c941 | 2021-08-08 19:08:26 -0700 | [diff] [blame] | 328 | // Is this a macro? |
| 329 | |
| 330 | struct function *mac = NULL; |
| 331 | |
| 332 | if (symbolp(car(body))) |
| 333 | mac = find_function(env, (char *)(car(body) ^ SYMBOL_TAG)); |
| 334 | else if (consp(car(body))) // consp, not just listp, since we don't care about nil. |
| 335 | walk_and_alloc(env, local, carref(body), false); |
| 336 | |
| 337 | if (mac && mac->namespace == NS_MACRO) |
swissChili | 36f2c69 | 2021-08-08 14:31:44 -0700 | [diff] [blame] | 338 | { |
swissChili | fc5c941 | 2021-08-08 19:08:26 -0700 | [diff] [blame] | 339 | unsigned char pool = push_pool(0); |
| 340 | value_t form = call_list(mac, args); |
| 341 | pop_pool(pool); |
| 342 | |
| 343 | add_to_pool(form); |
| 344 | *bp = form; |
| 345 | |
| 346 | walk_and_alloc(env, local, bp, false); |
| 347 | } |
| 348 | else |
| 349 | { |
| 350 | bool should_quote = symstreq(car(body), "quote") || symstreq(car(body), "backquote"); |
| 351 | |
| 352 | for (; !nilp(args); args = cdr(args)) |
| 353 | { |
| 354 | walk_and_alloc(env, local, carref(args), should_quote); |
| 355 | } |
swissChili | 36f2c69 | 2021-08-08 14:31:44 -0700 | [diff] [blame] | 356 | } |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 357 | } |
swissChili | 8fc5e2f | 2021-04-22 13:45:10 -0700 | [diff] [blame] | 358 | } |
swissChili | 36f2c69 | 2021-08-08 14:31:44 -0700 | [diff] [blame] | 359 | |
| 360 | OKAY(); |
swissChili | 8fc5e2f | 2021-04-22 13:45:10 -0700 | [diff] [blame] | 361 | } |
| 362 | |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 363 | bool load(struct environment *env, char *path) |
swissChili | 8fc5e2f | 2021-04-22 13:45:10 -0700 | [diff] [blame] | 364 | { |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 365 | if (!file_exists(path)) |
| 366 | return false; |
| 367 | |
| 368 | add_load(env, path); |
| 369 | |
swissChili | b8fd471 | 2021-06-23 15:32:04 -0700 | [diff] [blame] | 370 | unsigned char pool = make_pool(); |
| 371 | unsigned char pop = push_pool(pool); |
| 372 | |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 373 | struct istream *is = new_fistream(path, false); |
| 374 | if (!is) |
| 375 | return false; |
| 376 | |
swissChili | 8fc5e2f | 2021-04-22 13:45:10 -0700 | [diff] [blame] | 377 | value_t val; |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 378 | |
swissChili | fc5c941 | 2021-08-08 19:08:26 -0700 | [diff] [blame] | 379 | struct error compile_error, read_error; |
swissChili | 36f2c69 | 2021-08-08 14:31:44 -0700 | [diff] [blame] | 380 | |
| 381 | while (IS_OKAY((read_error = read1(is, &val)))) |
swissChili | 8fc5e2f | 2021-04-22 13:45:10 -0700 | [diff] [blame] | 382 | { |
swissChili | fc5c941 | 2021-08-08 19:08:26 -0700 | [diff] [blame] | 383 | if (!IS_OKAY((compile_error = compile_tl(val, env, path)))) |
swissChili | 36f2c69 | 2021-08-08 14:31:44 -0700 | [diff] [blame] | 384 | { |
swissChili | fc5c941 | 2021-08-08 19:08:26 -0700 | [diff] [blame] | 385 | ereport(compile_error); |
swissChili | 36f2c69 | 2021-08-08 14:31:44 -0700 | [diff] [blame] | 386 | goto failure; |
| 387 | } |
| 388 | } |
| 389 | |
| 390 | if (!read_error.safe_state) |
| 391 | { |
| 392 | goto failure; |
swissChili | 8fc5e2f | 2021-04-22 13:45:10 -0700 | [diff] [blame] | 393 | } |
swissChili | f3e7f18 | 2021-04-20 13:57:22 -0700 | [diff] [blame] | 394 | |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 395 | del_fistream(is); |
swissChili | b8fd471 | 2021-06-23 15:32:04 -0700 | [diff] [blame] | 396 | pop_pool(pop); |
| 397 | |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 398 | return true; |
swissChili | 36f2c69 | 2021-08-08 14:31:44 -0700 | [diff] [blame] | 399 | |
| 400 | failure: |
| 401 | del_fistream(is); |
| 402 | pop_pool(pool); |
| 403 | |
| 404 | return false; |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 405 | } |
| 406 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 407 | value_t load_relative(struct environment *env, char *to, value_t name) |
| 408 | { |
| 409 | if (!stringp(name)) |
| 410 | return nil; |
| 411 | |
| 412 | char *new_path = (char *)(name ^ STRING_TAG); |
| 413 | char *relative_to = strdup(to); |
| 414 | char full_path[512]; |
| 415 | |
| 416 | snprintf(full_path, 512, "%s/%s", dirname(relative_to), new_path); |
| 417 | |
swissChili | c0acce4 | 2022-07-31 13:38:17 -0700 | [diff] [blame] | 418 | free(relative_to); |
| 419 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 420 | if (load(env, full_path)) |
| 421 | return t; |
| 422 | else |
| 423 | return nil; |
| 424 | } |
| 425 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 426 | struct error compile_file(char *filename, struct environment **e) |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 427 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 428 | E_INIT(); |
| 429 | |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 430 | value_t val; |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 431 | struct environment *env = malloc(sizeof(struct environment)); |
| 432 | env->first = NULL; |
| 433 | env->first_loaded = NULL; |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 434 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 435 | add_load(env, filename); |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 436 | TRY(load_std(env)); |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 437 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 438 | bool ok_ = load(env, filename); |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 439 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 440 | if (!ok_) |
| 441 | { |
| 442 | free(env); |
swissChili | 1e8b756 | 2021-12-22 21:22:57 -0800 | [diff] [blame] | 443 | NEARFL(filename, 1); |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 444 | THROWSAFE(ENOTFOUND); |
| 445 | } |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 446 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 447 | *e = env; |
| 448 | |
| 449 | OKAY(); |
swissChili | ca107a0 | 2021-04-14 12:07:30 -0700 | [diff] [blame] | 450 | } |
swissChili | b3ca4fb | 2021-04-20 10:33:00 -0700 | [diff] [blame] | 451 | |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 452 | int nextpc(struct local *local, dasm_State **Dst) |
swissChili | b3ca4fb | 2021-04-20 10:33:00 -0700 | [diff] [blame] | 453 | { |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 454 | int n = local->nextpc++; |
| 455 | if (n > local->npc) |
| 456 | { |
| 457 | local->npc += 16; |
| 458 | dasm_growpc(Dst, local->npc); |
| 459 | } |
| 460 | return n; |
| 461 | } |
| 462 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 463 | struct error compile_backquote(struct environment *env, struct local *local, |
| 464 | value_t val, dasm_State **Dst) |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 465 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 466 | E_INIT(); |
| 467 | |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 468 | if (!listp(val)) |
| 469 | { |
| 470 | | mov eax, (val); |
| 471 | } |
| 472 | else |
| 473 | { |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 474 | value_t fsym = car(val), args = cdr(val); |
swissChili | 9d151e6 | 2021-08-04 13:11:45 -0700 | [diff] [blame] | 475 | int nargs = length(args), |
| 476 | n = length(val); |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 477 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 478 | NEARVAL(val); |
| 479 | |
swissChili | 9d151e6 | 2021-08-04 13:11:45 -0700 | [diff] [blame] | 480 | if (symstreq(fsym, "unquote")) |
| 481 | { |
| 482 | if (nargs != 1) |
| 483 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 484 | THROW(EARGS, "unquote (or ,) takes exactly 1 argument"); |
swissChili | 9d151e6 | 2021-08-04 13:11:45 -0700 | [diff] [blame] | 485 | } |
| 486 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 487 | TRY(compile_expression(env, local, car(args), false, Dst)); |
swissChili | 9d151e6 | 2021-08-04 13:11:45 -0700 | [diff] [blame] | 488 | } |
| 489 | else |
| 490 | { |
| 491 | | push nil; |
| 492 | |
| 493 | for (int i = n - 1; i >= 0; i--) |
| 494 | { |
swissChili | a7568dc | 2021-08-08 16:52:52 -0700 | [diff] [blame] | 495 | value_t v = elt(val, i); |
swissChili | 9d151e6 | 2021-08-04 13:11:45 -0700 | [diff] [blame] | 496 | |
swissChili | a7568dc | 2021-08-08 16:52:52 -0700 | [diff] [blame] | 497 | if (listp(v) && symstreq(car(v), "unquote-splice")) |
| 498 | { |
| 499 | NEARVAL(v); |
| 500 | |
| 501 | if (length(v) != 2) |
| 502 | { |
| 503 | THROW(EARGS, "unquote-splice (or ,@) takes exactly 1 argument"); |
| 504 | } |
| 505 | |
| 506 | value_t expr = car(cdr(v)); |
| 507 | |
swissChili | a7568dc | 2021-08-08 16:52:52 -0700 | [diff] [blame] | 508 | TRY(compile_expression(env, local, expr, false, Dst)); |
| 509 | | push eax; |
| 510 | | call_extern merge2; |
| 511 | | add esp, 8; |
| 512 | | push eax; |
| 513 | } |
| 514 | else |
| 515 | { |
| 516 | TRY(compile_backquote(env, local, v, Dst)); |
| 517 | | push eax; |
| 518 | | call_extern cons; |
| 519 | | add esp, 8; |
| 520 | |
| 521 | // Remove unnecessary pop |
| 522 | | push eax; |
| 523 | } |
swissChili | 9d151e6 | 2021-08-04 13:11:45 -0700 | [diff] [blame] | 524 | } |
swissChili | a89ee44 | 2021-08-04 20:54:51 -0700 | [diff] [blame] | 525 | | pop eax; |
swissChili | 9d151e6 | 2021-08-04 13:11:45 -0700 | [diff] [blame] | 526 | } |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 527 | } |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 528 | |
| 529 | OKAY(); |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 530 | } |
| 531 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 532 | value_t eval(struct environment *env, value_t form) |
| 533 | { |
swissChili | 8056031 | 2022-07-31 21:05:47 -0700 | [diff] [blame^] | 534 | gc_push_segment(&form, 1); |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 535 | // Eval! |
| 536 | value_t function = cons(nil, cons(form, nil)); |
| 537 | |
swissChili | 8056031 | 2022-07-31 21:05:47 -0700 | [diff] [blame^] | 538 | gc_set_retained(0, function); |
| 539 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 540 | struct local local; |
| 541 | struct args *args; |
| 542 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 543 | dasm_State *d; |
| 544 | struct error err; |
| 545 | |
| 546 | if (!IS_OKAY((err = compile_function(function, NS_ANONYMOUS, env, &local, NULL, |
| 547 | &args, NULL, "/", &d)))) |
| 548 | { |
| 549 | ereport(err); |
| 550 | return nil; |
| 551 | } |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 552 | |
| 553 | del_local(&local); |
| 554 | |
| 555 | value_t (*f)() = link_program(&d); |
swissChili | 8056031 | 2022-07-31 21:05:47 -0700 | [diff] [blame^] | 556 | |
| 557 | gc_prepare_call(0); |
| 558 | value_t val = f(); |
| 559 | |
| 560 | gc_pop_segment(); |
| 561 | |
| 562 | return val; |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 563 | } |
| 564 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 565 | struct error compile_variable(struct variable *v, dasm_State *Dst) |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 566 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 567 | E_INIT(); |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 568 | switch (v->type) |
| 569 | { |
| 570 | case V_ARGUMENT: |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 571 | | mov eax, dword[ebp + (value_size * (v->number + 2))]; |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 572 | break; |
| 573 | case V_BOUND: |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 574 | | mov eax, dword[ebp - ((v->number + 1) * value_size)]; |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 575 | break; |
| 576 | case V_FREE: |
| 577 | // edi is the closure context pointer |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 578 | | mov eax, dword[edi + (v->number * value_size)]; |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 579 | break; |
| 580 | default: |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 581 | THROW(EUNIMPL, "Sorry, can only access V_ARGUMENT, V_BOUND, and V_FREE vars"); |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 582 | } |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 583 | OKAY(); |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 584 | } |
| 585 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 586 | struct error compile_expression(struct environment *env, struct local *local, |
| 587 | value_t val, bool tail, dasm_State **Dst) |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 588 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 589 | E_INIT(); |
| 590 | |
| 591 | NEARVAL(val); |
| 592 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 593 | if (symstreq(val, "nil") || nilp(val)) |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 594 | { |
| 595 | | mov eax, (nil); |
| 596 | } |
swissChili | 923b536 | 2021-05-09 20:31:43 -0700 | [diff] [blame] | 597 | else if (symstreq(val, "t")) |
| 598 | { |
| 599 | | mov eax, (t); |
| 600 | } |
| 601 | else if (integerp(val) || stringp(val)) |
swissChili | b3ca4fb | 2021-04-20 10:33:00 -0700 | [diff] [blame] | 602 | { |
| 603 | | mov eax, val; |
| 604 | } |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 605 | else if (listp(val)) |
swissChili | b3ca4fb | 2021-04-20 10:33:00 -0700 | [diff] [blame] | 606 | { |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 607 | value_t fsym = car(val); |
| 608 | value_t args = cdr(val); |
| 609 | int nargs = length(args); |
swissChili | b3ca4fb | 2021-04-20 10:33:00 -0700 | [diff] [blame] | 610 | |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 611 | if (!symbolp(fsym)) |
swissChili | f3e7f18 | 2021-04-20 13:57:22 -0700 | [diff] [blame] | 612 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 613 | THROW(EEXPECTED, "Function name must be a symbol"); |
swissChili | f3e7f18 | 2021-04-20 13:57:22 -0700 | [diff] [blame] | 614 | } |
| 615 | |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 616 | if (symstreq(fsym, "if")) |
swissChili | b3ca4fb | 2021-04-20 10:33:00 -0700 | [diff] [blame] | 617 | { |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 618 | if (nargs < 2 || nargs > 3) |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 619 | { |
| 620 | THROW(EARGS, "Must give at least 2 arguments to if"); |
| 621 | } |
swissChili | b3ca4fb | 2021-04-20 10:33:00 -0700 | [diff] [blame] | 622 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 623 | TRY(compile_expression(env, local, car(args), false, Dst)); |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 624 | int false_label = nextpc(local, Dst), |
| 625 | after_label = nextpc(local, Dst); |
| 626 | |
| 627 | // result is in eax |
| 628 | | cmp eax, (nil); |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 629 | | je =>false_label; |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 630 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 631 | TRY(compile_expression(env, local, elt(args, 1), tail, Dst)); |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 632 | | jmp =>after_label; |
| 633 | |=>false_label:; |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 634 | if (nargs == 3) |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 635 | TRY(compile_expression(env, local, elt(args, 2), tail, Dst)); |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 636 | |=>after_label:; |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 637 | } |
swissChili | a89ee44 | 2021-08-04 20:54:51 -0700 | [diff] [blame] | 638 | else if (symstreq(fsym, "and") || symstreq(fsym, "or")) |
| 639 | { |
| 640 | bool or = symstreq(fsym, "or"); // false == and |
| 641 | |
| 642 | // Boolean and and or, short circuit like &&/|| |
| 643 | if (nargs < 1) |
| 644 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 645 | THROW(EARGS, "and & or require at least 1 argument."); |
swissChili | a89ee44 | 2021-08-04 20:54:51 -0700 | [diff] [blame] | 646 | } |
| 647 | |
| 648 | int after = nextpc(local, Dst); |
| 649 | |
| 650 | for (; !nilp(args); args = cdr(args)) |
| 651 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 652 | NEARVAL(args); |
| 653 | |
| 654 | TRY(compile_expression(env, local, car(args), false, Dst)); |
swissChili | a89ee44 | 2021-08-04 20:54:51 -0700 | [diff] [blame] | 655 | if (!nilp(cdr(args))) |
| 656 | { |
| 657 | | cmp eax, nil; |
| 658 | if (or) |
| 659 | { |
swissChili | fbf525f | 2021-08-04 21:28:07 -0700 | [diff] [blame] | 660 | | jne =>after; |
swissChili | a89ee44 | 2021-08-04 20:54:51 -0700 | [diff] [blame] | 661 | } |
| 662 | else |
| 663 | { |
swissChili | fbf525f | 2021-08-04 21:28:07 -0700 | [diff] [blame] | 664 | | je =>after; |
swissChili | a89ee44 | 2021-08-04 20:54:51 -0700 | [diff] [blame] | 665 | } |
| 666 | } |
| 667 | } |
| 668 | |
| 669 | |=>after:; |
| 670 | } |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 671 | else if (symstreq(fsym, "progn")) |
| 672 | { |
| 673 | for (value_t val = args; !nilp(val); val = cdr(val)) |
| 674 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 675 | NEARVAL(args); |
| 676 | |
swissChili | b51552c | 2021-08-03 10:23:37 -0700 | [diff] [blame] | 677 | bool t = tail && nilp(cdr(val)); |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 678 | TRY(compile_expression(env, local, car(val), t, Dst)); |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 679 | } |
| 680 | } |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 681 | else if (symstreq(fsym, "let1")) |
| 682 | { |
| 683 | if (nargs < 2) |
| 684 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 685 | THROW(EARGS, "Must give at least 2 arguments to let1"); |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 686 | } |
| 687 | value_t binding = car(args); |
| 688 | value_t rest = cdr(args); |
| 689 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 690 | NEARVAL(binding); |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 691 | if (length(binding) != 2) |
| 692 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 693 | THROW(EARGS, "Binding list in let1 must contain exactly two entries"); |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 694 | } |
| 695 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 696 | NEARVAL(rest); |
| 697 | |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 698 | value_t name = car(binding); |
| 699 | value_t value = car(cdr(binding)); |
| 700 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 701 | TRY(compile_expression(env, local, value, false, Dst)); |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 702 | |
| 703 | int i = local_alloc(local); |
| 704 | |
| 705 | add_variable(local, V_BOUND, (char *)(name ^ SYMBOL_TAG), i); |
| 706 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 707 | | mov dword[ebp - ((i + 1) * value_size)], eax; |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 708 | |
| 709 | for (; !nilp(rest); rest = cdr(rest)) |
| 710 | { |
swissChili | b51552c | 2021-08-03 10:23:37 -0700 | [diff] [blame] | 711 | bool t = tail && nilp(cdr(rest)); |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 712 | NEARVAL(rest); |
| 713 | TRY(compile_expression(env, local, car(rest), t, Dst)); |
swissChili | 67bdf28 | 2021-06-06 18:46:08 -0700 | [diff] [blame] | 714 | } |
| 715 | |
| 716 | local_free(local, i); |
| 717 | } |
swissChili | e9fec8b | 2021-06-22 13:59:33 -0700 | [diff] [blame] | 718 | else if (symstreq(fsym, "gc")) |
| 719 | { |
| 720 | if (nargs) |
| 721 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 722 | THROW(EARGS, "gc takes no arguments"); |
swissChili | e9fec8b | 2021-06-22 13:59:33 -0700 | [diff] [blame] | 723 | } |
| 724 | |
| 725 | | run_gc; |
| 726 | } |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 727 | else if (symstreq(fsym, "quote")) |
| 728 | { |
| 729 | if (nargs != 1) |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 730 | THROW(EARGS, "quote should take exactly 1 argument"); |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 731 | |
| 732 | // Simple! |
| 733 | | mov eax, (car(args)); |
| 734 | } |
| 735 | else if (symstreq(fsym, "backquote")) |
| 736 | { |
| 737 | if (nargs != 1) |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 738 | THROW(EARGS, "backquote should take exactly 1 argument"); |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 739 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 740 | TRY(compile_backquote(env, local, car(args), Dst)); |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 741 | } |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 742 | else if (symstreq(fsym, "function")) |
| 743 | { |
| 744 | if (nargs != 1) |
| 745 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 746 | THROW(EARGS, "function should take exactly 1 argument"); |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 747 | } |
| 748 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 749 | NEARVAL(args); |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 750 | if (!symbolp(car(args))) |
| 751 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 752 | THROW(EINVALID, "argument to function should be a symbol resolvable at " |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 753 | "compile time"); |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 754 | } |
| 755 | |
swissChili | a89ee44 | 2021-08-04 20:54:51 -0700 | [diff] [blame] | 756 | char *name = (char *)(car(args) ^ SYMBOL_TAG); |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 757 | |
swissChili | a89ee44 | 2021-08-04 20:54:51 -0700 | [diff] [blame] | 758 | if (!strcmp(name, local->current_function_name)) |
| 759 | { |
| 760 | | push 0; |
| 761 | | push local->args; |
| 762 | | push <1; |
| 763 | | call_extern create_closure; |
| 764 | } |
| 765 | else |
| 766 | { |
| 767 | struct function *f = find_function(env, name); |
| 768 | |
| 769 | if (!f) |
| 770 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 771 | THROW(EINVALID, "Function `%s' does not exist", (char *)(car(args) ^ SYMBOL_TAG)); |
swissChili | a89ee44 | 2021-08-04 20:54:51 -0700 | [diff] [blame] | 772 | } |
| 773 | value_t closure = create_closure(f->code_ptr, f->args, 0); |
| 774 | | mov eax, (closure); |
| 775 | } |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 776 | } |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 777 | else if (symstreq(fsym, "list")) |
| 778 | { |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 779 | | push (nil); |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 780 | |
| 781 | for (int i = nargs - 1; i >= 0; i--) |
| 782 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 783 | TRY(compile_expression(env, local, elt(args, i), false, Dst)); |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 784 | |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 785 | | push eax; |
swissChili | 53e7cd1 | 2021-08-02 21:55:53 -0700 | [diff] [blame] | 786 | | call_extern cons; |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 787 | | add esp, (2 * value_size); |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 788 | | push eax; |
| 789 | } |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 790 | | pop eax; |
swissChili | 6b47b6d | 2021-06-30 22:08:55 -0700 | [diff] [blame] | 791 | } |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 792 | else if (symstreq(fsym, "lambda")) |
| 793 | { |
| 794 | // Compile the function with this as the parent scope |
| 795 | struct local new_local; |
swissChili | c0acce4 | 2022-07-31 13:38:17 -0700 | [diff] [blame] | 796 | struct args *nargs_out; |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 797 | dasm_State *d; |
| 798 | TRY(compile_function( |
| 799 | args, NS_ANONYMOUS, env, &new_local, local, &nargs_out, |
| 800 | "recurse", local->current_file_path, &d)); |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 801 | |
| 802 | // Link the function |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 803 | void *func_ptr = link_program(&d); |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 804 | |
| 805 | // Create a closure object with the correct number of captures at |
| 806 | // runtime |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 807 | | push (new_local.num_closure_slots); |
| 808 | | push (nargs_out); |
| 809 | | push (func_ptr); |
swissChili | 53e7cd1 | 2021-08-02 21:55:53 -0700 | [diff] [blame] | 810 | | call_extern create_closure; |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 811 | | add esp, 12; |
| 812 | |
| 813 | // Walk the generated local scope for V_FREE variables, since each |
| 814 | // of these exists in our scope (or higher), evaluate it and set it |
| 815 | // as a member of the lambda capture. |
| 816 | |
| 817 | for (struct variable *var = new_local.first; var; var = var->prev) |
| 818 | { |
| 819 | if (var->type == V_FREE) |
| 820 | { |
| 821 | // Closure in eax |
| 822 | | push eax; |
| 823 | // Variable now in eax |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 824 | TRY(compile_variable(find_variable(local, var->name), Dst)); |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 825 | | push eax; |
| 826 | |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 827 | // The capture offset |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 828 | | push (var->number); |
swissChili | 53e7cd1 | 2021-08-02 21:55:53 -0700 | [diff] [blame] | 829 | | call_extern set_closure_capture_variable; |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 830 | // Skip the value and index |
| 831 | | add esp, 8; |
| 832 | // Pop the closure back in to eax |
| 833 | | pop eax; |
| 834 | } |
| 835 | } |
| 836 | |
| 837 | // Closure is still in eax |
| 838 | |
| 839 | dasm_free(&d); |
swissChili | 708d4c4 | 2021-07-04 17:40:07 -0700 | [diff] [blame] | 840 | del_local(&new_local); |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 841 | } |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 842 | else if (symstreq(fsym, "eval")) |
| 843 | { |
| 844 | if (nargs != 1) |
| 845 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 846 | THROW(EARGS, "eval takes exactly 1 argument"); |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 847 | } |
| 848 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 849 | TRY(compile_expression(env, local, car(args), false, Dst)); |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 850 | | push eax; |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 851 | | push (env); |
swissChili | 53e7cd1 | 2021-08-02 21:55:53 -0700 | [diff] [blame] | 852 | | call_extern eval; |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 853 | } |
| 854 | else if (symstreq(fsym, "load")) |
| 855 | { |
| 856 | if (nargs != 1) |
| 857 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 858 | THROW(EARGS, "load takes exactly 1 argument, %d given", nargs); |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 859 | } |
| 860 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 861 | TRY(compile_expression(env, local, car(args), false, Dst)); |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 862 | | push eax; |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 863 | | push (local->current_file_path); |
| 864 | | push (env); |
swissChili | 53e7cd1 | 2021-08-02 21:55:53 -0700 | [diff] [blame] | 865 | | call_extern load_relative; |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 866 | } |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 867 | else |
| 868 | { |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 869 | char *name = (char *)(fsym ^ SYMBOL_TAG); |
| 870 | struct function *func = find_function(env, name); |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 871 | |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 872 | bool is_recursive = false; |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 873 | struct args *nargs_needed = NULL; |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 874 | |
swissChili | 53e7cd1 | 2021-08-02 21:55:53 -0700 | [diff] [blame] | 875 | // The number of arguments actually passed on the stack, |
| 876 | // i.e. all varargs are 1. |
swissChili | b51552c | 2021-08-03 10:23:37 -0700 | [diff] [blame] | 877 | int real_nargs; |
swissChili | 53e7cd1 | 2021-08-02 21:55:53 -0700 | [diff] [blame] | 878 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 879 | if (local->current_function_name && |
| 880 | symstreq(fsym, local->current_function_name)) |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 881 | { |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 882 | is_recursive = true; |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 883 | nargs_needed = local->args; |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 884 | } |
| 885 | else |
| 886 | { |
| 887 | if (func == NULL) |
| 888 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 889 | THROW(EINVALID, "Function %s undefined", name); |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 890 | } |
| 891 | |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 892 | nargs_needed = func->args; |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 893 | } |
| 894 | |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 895 | if (!are_args_acceptable(nargs_needed, nargs)) |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 896 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 897 | THROW(EARGS, |
| 898 | "wrong number of args in function call: %s, " |
| 899 | "want %d args but given %d\n", |
| 900 | name, nargs_needed->num_required, nargs); |
swissChili | f1ba8c1 | 2021-07-02 18:45:38 -0700 | [diff] [blame] | 901 | } |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 902 | |
swissChili | 53e7cd1 | 2021-08-02 21:55:53 -0700 | [diff] [blame] | 903 | int total_taken = nargs_needed->num_optional + |
| 904 | nargs_needed->num_required; |
| 905 | |
swissChili | b51552c | 2021-08-03 10:23:37 -0700 | [diff] [blame] | 906 | real_nargs = total_taken + (nargs_needed->variadic ? 1 : 0); |
swissChili | 53e7cd1 | 2021-08-02 21:55:53 -0700 | [diff] [blame] | 907 | |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 908 | if (is_recursive || func->namespace == NS_FUNCTION) |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 909 | { |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 910 | int nargs = length(args); |
| 911 | |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 912 | int line = cons_line(val); |
| 913 | char *file = cons_file(val); |
| 914 | |
| 915 | if (nargs_needed->variadic) |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 916 | { |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 917 | | push (nil); |
| 918 | } |
| 919 | |
| 920 | if (nargs > total_taken && nargs_needed->variadic) |
| 921 | { |
| 922 | // We are passing varargs, which means we need to make a list |
| 923 | |
| 924 | for (int i = nargs - 1; i >= total_taken; i--) |
| 925 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 926 | TRY(compile_expression(env, local, elt(args, i), false, Dst)); |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 927 | | push eax; |
swissChili | 53e7cd1 | 2021-08-02 21:55:53 -0700 | [diff] [blame] | 928 | | call_extern cons; |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 929 | | add esp, 8; |
| 930 | | push eax; |
| 931 | } |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 932 | } |
| 933 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 934 | for (int i = nargs_needed->num_optional - 1; |
| 935 | i >= nargs - nargs_needed->num_required; i--) |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 936 | { |
| 937 | // Push the default optional values |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 938 | | push (nargs_needed->optional_arguments[i].value); |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 939 | } |
| 940 | |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 941 | int min = MIN(nargs, total_taken); |
| 942 | |
| 943 | for (int i = min - 1; i >= 0; i--) |
swissChili | 2999dd1 | 2021-07-02 14:19:53 -0700 | [diff] [blame] | 944 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 945 | TRY(compile_expression(env, local, elt(args, i), false, Dst)); |
swissChili | 2999dd1 | 2021-07-02 14:19:53 -0700 | [diff] [blame] | 946 | | push eax; |
| 947 | } |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 948 | |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 949 | if (is_recursive) |
| 950 | { |
swissChili | b51552c | 2021-08-03 10:23:37 -0700 | [diff] [blame] | 951 | if (tail) |
| 952 | { |
| 953 | // Move all the arguments pushed to the stack |
| 954 | // back up to the argument bit of the stack. |
| 955 | |
| 956 | for (int i = 0; i < real_nargs; i++) |
| 957 | { |
| 958 | | pop eax; |
| 959 | | mov dword[ebp + (value_size * (i + 2))], eax; |
| 960 | } |
| 961 | |
| 962 | // Jmp back to start |
| 963 | | mov esp, ebp; |
| 964 | | pop ebp; |
| 965 | | jmp <1; |
| 966 | } |
| 967 | else |
| 968 | { |
| 969 | | call <1; |
| 970 | } |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 971 | } |
| 972 | else |
| 973 | { |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 974 | // | mov ebx, (func->code_addr); |
| 975 | | call_extern func->code_addr; |
swissChili | 7434842 | 2021-07-04 13:23:24 -0700 | [diff] [blame] | 976 | } |
swissChili | 53e7cd1 | 2021-08-02 21:55:53 -0700 | [diff] [blame] | 977 | | add esp, (real_nargs * value_size); |
swissChili | 2999dd1 | 2021-07-02 14:19:53 -0700 | [diff] [blame] | 978 | // result in eax |
| 979 | } |
| 980 | else if (func->namespace == NS_MACRO) |
| 981 | { |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 982 | // Make sure that the stuff allocated by the macro isn't in a |
| 983 | // pool |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 984 | unsigned char pool = push_pool(0); |
| 985 | |
swissChili | 2999dd1 | 2021-07-02 14:19:53 -0700 | [diff] [blame] | 986 | value_t expanded_to = call_list(func, args); |
| 987 | |
swissChili | f68671f | 2021-07-05 14:14:44 -0700 | [diff] [blame] | 988 | pop_pool(pool); |
| 989 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 990 | TRY(compile_expression(env, local, expanded_to, false, Dst)); |
swissChili | 2999dd1 | 2021-07-02 14:19:53 -0700 | [diff] [blame] | 991 | } |
swissChili | 53472e8 | 2021-05-08 16:06:32 -0700 | [diff] [blame] | 992 | } |
swissChili | b3ca4fb | 2021-04-20 10:33:00 -0700 | [diff] [blame] | 993 | } |
swissChili | 923b536 | 2021-05-09 20:31:43 -0700 | [diff] [blame] | 994 | else if (symbolp(val)) |
| 995 | { |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 996 | if (symstreq(val, "+current-file+")) |
swissChili | e9fec8b | 2021-06-22 13:59:33 -0700 | [diff] [blame] | 997 | { |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 998 | value_t file_name_val = strval(local->current_file_path); |
| 999 | |
| 1000 | | mov eax, (file_name_val); |
swissChili | e9fec8b | 2021-06-22 13:59:33 -0700 | [diff] [blame] | 1001 | } |
swissChili | 04d9416 | 2022-07-30 21:46:49 -0700 | [diff] [blame] | 1002 | else if (symstreq(val, "+current-env+")) |
| 1003 | { |
| 1004 | // TODO: we return this as a raw "integer", which is a bad |
| 1005 | // idea. Once classes are added this needs to be wrapped |
| 1006 | // in a class. |
| 1007 | | mov eax, (env); |
| 1008 | } |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1009 | else |
| 1010 | { |
| 1011 | struct variable *v = |
| 1012 | find_variable(local, (char *)(val ^ SYMBOL_TAG)); |
swissChili | 923b536 | 2021-05-09 20:31:43 -0700 | [diff] [blame] | 1013 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1014 | if (!v) |
| 1015 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 1016 | THROW(EINVALID, "Variable `%s' unbound", (char *)(val ^ SYMBOL_TAG)); |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1017 | } |
| 1018 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 1019 | TRY(compile_variable(v, Dst)); |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1020 | } |
swissChili | 923b536 | 2021-05-09 20:31:43 -0700 | [diff] [blame] | 1021 | } |
swissChili | a89ee44 | 2021-08-04 20:54:51 -0700 | [diff] [blame] | 1022 | else if (closurep(val)) |
| 1023 | { |
| 1024 | | mov eax, val; |
| 1025 | } |
| 1026 | else |
| 1027 | { |
| 1028 | printval(val, 1); |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 1029 | THROW(EUNIMPL, "Don't know how to compile this, sorry."); |
swissChili | a89ee44 | 2021-08-04 20:54:51 -0700 | [diff] [blame] | 1030 | } |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 1031 | |
| 1032 | OKAY(); |
swissChili | b3ca4fb | 2021-04-20 10:33:00 -0700 | [diff] [blame] | 1033 | } |
swissChili | f3e7f18 | 2021-04-20 13:57:22 -0700 | [diff] [blame] | 1034 | |
swissChili | 923b536 | 2021-05-09 20:31:43 -0700 | [diff] [blame] | 1035 | struct variable *add_variable(struct local *local, enum var_type type, |
| 1036 | char *name, int number) |
| 1037 | { |
| 1038 | struct variable *var = malloc(sizeof(struct variable)); |
| 1039 | var->prev = local->first; |
| 1040 | var->type = type; |
| 1041 | var->name = name; |
| 1042 | var->number = number; |
| 1043 | |
| 1044 | local->first = var; |
| 1045 | |
| 1046 | return var; |
| 1047 | } |
| 1048 | |
| 1049 | void destroy_local(struct local *local) |
| 1050 | { |
| 1051 | for (struct variable *v = local->first; v;) |
| 1052 | { |
| 1053 | struct variable *t = v; |
| 1054 | v = v->prev; |
| 1055 | free(t); |
| 1056 | } |
| 1057 | } |
| 1058 | |
| 1059 | struct variable *find_variable(struct local *local, char *name) |
| 1060 | { |
| 1061 | struct variable *v = local->first; |
| 1062 | |
| 1063 | for (; v && strcmp(v->name, name) != 0; v = v->prev) |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1064 | { |
| 1065 | } |
swissChili | 923b536 | 2021-05-09 20:31:43 -0700 | [diff] [blame] | 1066 | |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 1067 | if (!v) |
| 1068 | { |
| 1069 | if (local->parent) |
| 1070 | { |
| 1071 | v = find_variable(local->parent, name); |
| 1072 | |
| 1073 | if (v) |
| 1074 | { |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1075 | // We found this in a parent scope, add it as a V_FREE variable |
| 1076 | // to skip the search. |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1077 | v = add_variable(local, V_FREE, name, |
| 1078 | local->num_closure_slots++); |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 1079 | } |
| 1080 | } |
| 1081 | } |
swissChili | 923b536 | 2021-05-09 20:31:43 -0700 | [diff] [blame] | 1082 | return v; |
| 1083 | } |
swissChili | 2999dd1 | 2021-07-02 14:19:53 -0700 | [diff] [blame] | 1084 | |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 1085 | extern value_t _call_list(void *addr, value_t list, value_t *edi); |
swissChili | 2999dd1 | 2021-07-02 14:19:53 -0700 | [diff] [blame] | 1086 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1087 | value_t call_list_args(void *code_ptr, struct args *args, value_t list, |
| 1088 | void *data) |
swissChili | 2999dd1 | 2021-07-02 14:19:53 -0700 | [diff] [blame] | 1089 | { |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1090 | list = deep_copy(list); |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 1091 | |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1092 | int nargs = length(list); |
| 1093 | |
swissChili | 484295d | 2021-07-09 21:25:55 -0700 | [diff] [blame] | 1094 | value_t *val = &list; |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1095 | |
| 1096 | for (value_t i = list; !nilp(i); i = cdr(i)) |
| 1097 | { |
| 1098 | val = cdrref(i); |
| 1099 | } |
| 1100 | |
| 1101 | int total_required = args->num_required + args->num_optional; |
| 1102 | |
| 1103 | if (nargs > total_required) |
| 1104 | { |
| 1105 | // Take the remainder of the list and put it as the last item in the |
| 1106 | // list. |
| 1107 | value_t trailing = cxdr(list, total_required); |
| 1108 | value_t last_item = cons(trailing, nil); |
| 1109 | |
| 1110 | *cxdrref(&list, total_required) = last_item; |
| 1111 | } |
| 1112 | else if (nargs < total_required) |
| 1113 | { |
| 1114 | for (int i = nargs - args->num_required; i < args->num_optional; i++) |
| 1115 | { |
| 1116 | // Append the i-th defualt argument |
| 1117 | value_t appended = cons(args->optional_arguments[i].value, nil); |
| 1118 | *val = appended; |
| 1119 | val = cdrref(appended); |
| 1120 | } |
| 1121 | } |
| 1122 | |
| 1123 | // We want to call this if we pass the correct # of arguments or less, just |
| 1124 | // not if we have already passed varargs. Appends a nil argument. |
| 1125 | if (nargs <= total_required) |
| 1126 | { |
| 1127 | // Enough real arguments but no variadic arguments. Pass a nil list. |
| 1128 | *val = cons(nil, nil); |
| 1129 | } |
| 1130 | |
| 1131 | return _call_list(code_ptr, list, data); |
| 1132 | } |
| 1133 | |
| 1134 | value_t call_list(struct function *fun, value_t list) |
| 1135 | { |
| 1136 | return call_list_args(fun->code_ptr, fun->args, list, NULL); |
swissChili | ddc9754 | 2021-07-04 11:47:42 -0700 | [diff] [blame] | 1137 | } |
| 1138 | |
| 1139 | value_t call_list_closure(struct closure *c, value_t list) |
| 1140 | { |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1141 | return call_list_args(c->function, c->args, list, c->data); |
| 1142 | } |
| 1143 | |
| 1144 | struct args *new_args() |
| 1145 | { |
| 1146 | struct args *a = malloc(sizeof(struct args)); |
| 1147 | a->num_optional = 0; |
| 1148 | a->num_required = 0; |
| 1149 | a->variadic = false; |
| 1150 | |
| 1151 | return a; |
| 1152 | } |
| 1153 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1154 | struct args *add_optional_arg(struct args *args, value_t name, value_t value) |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1155 | { |
| 1156 | int i = args->num_optional++; |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1157 | args = |
| 1158 | realloc(args, sizeof(struct args) + sizeof(struct optional_argument) * |
| 1159 | args->num_optional); |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1160 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1161 | args->optional_arguments[i] = (struct optional_argument){ |
| 1162 | .value = value, |
| 1163 | .name = name, |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1164 | }; |
| 1165 | |
| 1166 | return args; |
| 1167 | } |
| 1168 | |
| 1169 | bool are_args_acceptable(struct args *args, int number) |
| 1170 | { |
| 1171 | if (args->variadic) |
| 1172 | { |
| 1173 | return number >= args->num_required; |
| 1174 | } |
| 1175 | else |
| 1176 | { |
| 1177 | return number >= args->num_required && |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1178 | number <= args->num_required + args->num_optional; |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1179 | } |
| 1180 | } |
| 1181 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 1182 | struct error list_to_args(struct environment *env, value_t list, |
| 1183 | struct local *local, struct args **a) |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1184 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 1185 | E_INIT(); |
| 1186 | |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1187 | struct args *args = new_args(); |
| 1188 | |
| 1189 | bool in_optional = false; |
| 1190 | |
| 1191 | for (value_t i = list; !nilp(i); i = cdr(i)) |
| 1192 | { |
| 1193 | value_t val = car(i); |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 1194 | NEARVAL(i); |
| 1195 | |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1196 | if (symbolp(val)) |
| 1197 | { |
| 1198 | if (!args->variadic && symstreq(val, "&")) |
| 1199 | { |
| 1200 | i = cdr(i); |
| 1201 | value_t name = car(i); |
| 1202 | |
| 1203 | if (!symbolp(name)) |
| 1204 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 1205 | THROW(EEXPECTED, "You must provide a symbol after & in an argument list " |
| 1206 | "to bind the\n" |
| 1207 | "variadic arguments to."); |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1208 | } |
| 1209 | |
| 1210 | args->variadic = true; |
| 1211 | |
| 1212 | add_variable(local, V_ARGUMENT, (char *)(name ^ SYMBOL_TAG), |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1213 | args->num_optional + args->num_required); |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1214 | |
| 1215 | continue; |
| 1216 | } |
| 1217 | |
| 1218 | if (!in_optional) |
| 1219 | { |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1220 | add_variable(local, V_ARGUMENT, (char *)(val ^ SYMBOL_TAG), |
| 1221 | args->num_required++); |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1222 | } |
| 1223 | else |
| 1224 | { |
| 1225 | char *name = (char *)(val ^ SYMBOL_TAG); |
| 1226 | if (name[0] == '&') |
| 1227 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 1228 | THROW(EINVALID, "Non-optional argument following optional arguments " |
| 1229 | "starts with a &\n" |
| 1230 | "did you mean to declare a variadic argument? If so " |
| 1231 | "leave a space\n" |
| 1232 | "between the & and name."); |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1233 | } |
| 1234 | else |
| 1235 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 1236 | THROW(EINVALID, "Cannot define a non-optional argument after an " |
| 1237 | "optional one."); |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1238 | } |
| 1239 | } |
| 1240 | } |
| 1241 | else if (listp(val)) |
| 1242 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 1243 | NEARVAL(val); |
| 1244 | |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1245 | in_optional = true; |
| 1246 | int len = length(val); |
| 1247 | |
| 1248 | if (len != 2) |
| 1249 | { |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 1250 | THROW(EINVALID, "A list defining an optional value must be structured like " |
| 1251 | "(name expr)\n" |
| 1252 | "with exactly two arguments."); |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1253 | } |
| 1254 | |
| 1255 | value_t name = car(val); |
| 1256 | value_t expr = car(cdr(val)); |
| 1257 | |
| 1258 | value_t function = cons(nil, cons(expr, nil)); |
| 1259 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 1260 | dasm_State *d; |
| 1261 | TRY(compile_function(function, NS_ANONYMOUS, env, NULL, NULL, NULL, |
| 1262 | NULL, local->current_file_path, &d)); |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1263 | |
| 1264 | // TODO: GC stack top! |
| 1265 | value_t (*compiled)() = link_program(&d); |
| 1266 | |
| 1267 | value_t value = compiled(); |
| 1268 | args = add_optional_arg(args, name, value); |
| 1269 | |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1270 | add_variable(local, V_ARGUMENT, (char *)(name ^ SYMBOL_TAG), |
| 1271 | args->num_required + args->num_optional - 1); |
swissChili | c0acce4 | 2022-07-31 13:38:17 -0700 | [diff] [blame] | 1272 | |
| 1273 | dasm_free(&d); |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1274 | } |
| 1275 | } |
| 1276 | |
swissChili | 6d02af4 | 2021-08-05 19:49:01 -0700 | [diff] [blame] | 1277 | *a = args; |
| 1278 | OKAY(); |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1279 | } |
| 1280 | |
| 1281 | void display_args(struct args *args) |
| 1282 | { |
| 1283 | printf("Args object taking %d require arguments and %d optionals:\n", |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1284 | args->num_required, args->num_optional); |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1285 | |
| 1286 | for (int i = 0; i < args->num_optional; i++) |
| 1287 | { |
swissChili | 7e1393c | 2021-07-07 12:59:12 -0700 | [diff] [blame] | 1288 | printf(" %d\t%s\n", i, |
| 1289 | (char *)(args->optional_arguments[i].name ^ SYMBOL_TAG)); |
swissChili | 15f1cae | 2021-07-05 19:08:47 -0700 | [diff] [blame] | 1290 | printval(args->optional_arguments[i].value, 2); |
| 1291 | } |
swissChili | 2999dd1 | 2021-07-02 14:19:53 -0700 | [diff] [blame] | 1292 | } |