| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | Copyright 2022 Joel Svensson svenssonjoel@yahoo.se | ||
| 3 | |||
| 4 | This program is free software: you can redistribute it and/or modify | ||
| 5 | it under the terms of the GNU General Public License as published by | ||
| 6 | the Free Software Foundation, either version 3 of the License, or | ||
| 7 | (at your option) any later version. | ||
| 8 | |||
| 9 | This program is distributed in the hope that it will be useful, | ||
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 12 | GNU General Public License for more details. | ||
| 13 | |||
| 14 | You should have received a copy of the GNU General Public License | ||
| 15 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| 16 | */ | ||
| 17 | |||
| 18 | #include "lbm_c_interop.h" | ||
| 19 | |||
| 20 | /****************************************************/ | ||
| 21 | /* Interface for loading and running programs and */ | ||
| 22 | /* expressions */ | ||
| 23 | |||
| 24 | 17444 | lbm_cid eval_cps_load_and_eval(lbm_char_channel_t *tokenizer, bool program, bool incremental, char *name) { | |
| 25 | |||
| 26 | lbm_value stream; | ||
| 27 | |||
| 28 |
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17444 | if (!lift_char_channel(tokenizer, &stream)) { |
| 29 | ✗ | return 0; | |
| 30 | } | ||
| 31 | |||
| 32 |
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17444 | if (lbm_type_of(stream) == LBM_TYPE_SYMBOL) { |
| 33 | // TODO: Check what should be done. | ||
| 34 | ✗ | return 0; | |
| 35 | } | ||
| 36 | |||
| 37 | 17444 | lbm_value read_mode = ENC_SYM_READ; | |
| 38 |
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17444 | if (program) { |
| 39 |
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17444 | if (incremental) { |
| 40 | 8722 | read_mode = ENC_SYM_READ_AND_EVAL_PROGRAM; | |
| 41 | } else { | ||
| 42 | 8722 | read_mode = ENC_SYM_READ_PROGRAM; | |
| 43 | } | ||
| 44 | } | ||
| 45 | /* | ||
| 46 | read-eval-program finishes with the result of the final expression in | ||
| 47 | the program. This should not be passed to eval-program as it is most likely | ||
| 48 | not a program. Even if it is a program, its not one we want to evaluate. | ||
| 49 | */ | ||
| 50 | |||
| 51 | /* LISP ZONE */ | ||
| 52 | 17444 | lbm_value launcher = lbm_cons(stream, ENC_SYM_NIL); | |
| 53 | 17444 | launcher = lbm_cons(read_mode, launcher); | |
| 54 | lbm_value evaluator; | ||
| 55 | lbm_value start_prg; | ||
| 56 |
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17444 | if (read_mode == ENC_SYM_READ) { |
| 57 | ✗ | evaluator = lbm_cons(launcher, ENC_SYM_NIL); | |
| 58 | ✗ | evaluator = lbm_cons(ENC_SYM_EVAL, evaluator); | |
| 59 | ✗ | start_prg = lbm_cons(evaluator, ENC_SYM_NIL); | |
| 60 |
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17444 | } else if (read_mode == ENC_SYM_READ_PROGRAM) { |
| 61 | 8722 | evaluator = lbm_cons(launcher, ENC_SYM_NIL); | |
| 62 | 8722 | evaluator = lbm_cons(ENC_SYM_EVAL_PROGRAM, evaluator); | |
| 63 | 8722 | start_prg = lbm_cons(evaluator, ENC_SYM_NIL); | |
| 64 | } else { // ENC_SYM_READ_AND_EVAL_PROGRAM | ||
| 65 | 8722 | evaluator = launcher; // dummy so check below passes | |
| 66 | 8722 | start_prg = lbm_cons(launcher, ENC_SYM_NIL); | |
| 67 | } | ||
| 68 | |||
| 69 | /* LISP ZONE ENDS */ | ||
| 70 | |||
| 71 |
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34888 | if (lbm_type_of(launcher) != LBM_TYPE_CONS || |
| 72 |
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34888 | lbm_type_of(evaluator) != LBM_TYPE_CONS || |
| 73 | 17444 | lbm_type_of(start_prg) != LBM_TYPE_CONS ) { | |
| 74 | //lbm_explicit_free_token_stream(stream); | ||
| 75 | ✗ | return 0; | |
| 76 | } | ||
| 77 | 17444 | return lbm_create_ctx(start_prg, ENC_SYM_NIL, 256, name); | |
| 78 | } | ||
| 79 | |||
| 80 | ✗ | lbm_cid eval_cps_load_and_define(lbm_char_channel_t *tokenizer, char *symbol, bool program) { | |
| 81 | |||
| 82 | lbm_value stream; | ||
| 83 | |||
| 84 | ✗ | if (!lift_char_channel(tokenizer, &stream)) { | |
| 85 | ✗ | return 0; | |
| 86 | } | ||
| 87 | |||
| 88 | ✗ | if (lbm_type_of(stream) == LBM_TYPE_SYMBOL) { | |
| 89 | ✗ | return 0; | |
| 90 | } | ||
| 91 | |||
| 92 | lbm_uint sym_id; | ||
| 93 | |||
| 94 | ✗ | if (!lbm_get_symbol_by_name(symbol, &sym_id)) { | |
| 95 | ✗ | if (!lbm_add_symbol_base(symbol, &sym_id,false)) { //ram | |
| 96 | //lbm_explicit_free_token_stream(stream); | ||
| 97 | ✗ | return 0; | |
| 98 | } | ||
| 99 | } | ||
| 100 | |||
| 101 | /* LISP ZONE */ | ||
| 102 | |||
| 103 | ✗ | lbm_value launcher = lbm_cons(stream, lbm_enc_sym(SYM_NIL)); | |
| 104 | ✗ | launcher = lbm_cons(lbm_enc_sym(program ? SYM_READ_PROGRAM : SYM_READ), launcher); | |
| 105 | ✗ | lbm_value binding = lbm_cons(launcher, lbm_enc_sym(SYM_NIL)); | |
| 106 | ✗ | binding = lbm_cons(lbm_enc_sym(sym_id), binding); | |
| 107 | ✗ | lbm_value definer = lbm_cons(lbm_enc_sym(SYM_DEFINE), binding); | |
| 108 | ✗ | definer = lbm_cons(definer, lbm_enc_sym(SYM_NIL)); | |
| 109 | /* LISP ZONE ENDS */ | ||
| 110 | |||
| 111 | ✗ | if (lbm_type_of(launcher) != LBM_TYPE_CONS || | |
| 112 | ✗ | lbm_type_of(binding) != LBM_TYPE_CONS || | |
| 113 | ✗ | lbm_type_of(definer) != LBM_TYPE_CONS ) { | |
| 114 | //lbm_explicit_free_token_stream(stream); | ||
| 115 | ✗ | return 0; | |
| 116 | } | ||
| 117 | ✗ | return lbm_create_ctx(definer, lbm_enc_sym(SYM_NIL), 256, NULL); | |
| 118 | } | ||
| 119 | |||
| 120 | ✗ | lbm_cid lbm_eval_defined(char *symbol, bool program) { | |
| 121 | |||
| 122 | lbm_uint sym_id; | ||
| 123 | |||
| 124 | ✗ | if(!lbm_get_symbol_by_name(symbol, &sym_id)) { | |
| 125 | // The symbol does not exist, so it cannot be defined | ||
| 126 | ✗ | return 0; | |
| 127 | } | ||
| 128 | |||
| 129 | lbm_value binding; | ||
| 130 | |||
| 131 | ✗ | if (!lbm_global_env_lookup(&binding, lbm_enc_sym(sym_id))) { | |
| 132 | ✗ | return 0; | |
| 133 | } | ||
| 134 | |||
| 135 | /* LISP ZONE */ | ||
| 136 | |||
| 137 | ✗ | lbm_value launcher = lbm_cons(lbm_enc_sym(sym_id), lbm_enc_sym(SYM_NIL)); | |
| 138 | ✗ | lbm_value evaluator = launcher; | |
| 139 | ✗ | evaluator = lbm_cons(lbm_enc_sym(program ? SYM_EVAL_PROGRAM : SYM_EVAL), evaluator); | |
| 140 | ✗ | lbm_value start_prg = lbm_cons(evaluator, lbm_enc_sym(SYM_NIL)); | |
| 141 | |||
| 142 | /* LISP ZONE ENDS */ | ||
| 143 | |||
| 144 | ✗ | if (lbm_type_of(launcher) != LBM_TYPE_CONS || | |
| 145 | ✗ | lbm_type_of(evaluator) != LBM_TYPE_CONS || | |
| 146 | ✗ | lbm_type_of(start_prg) != LBM_TYPE_CONS ) { | |
| 147 | ✗ | return 0; | |
| 148 | } | ||
| 149 | ✗ | return lbm_create_ctx(start_prg, lbm_enc_sym(SYM_NIL), 256, NULL); | |
| 150 | } | ||
| 151 | |||
| 152 | |||
| 153 | |||
| 154 | ✗ | lbm_cid lbm_load_and_eval_expression(lbm_char_channel_t *tokenizer) { | |
| 155 | ✗ | return eval_cps_load_and_eval(tokenizer, false,false, NULL); | |
| 156 | } | ||
| 157 | |||
| 158 | ✗ | lbm_cid lbm_load_and_define_expression(lbm_char_channel_t *tokenizer, char *symbol) { | |
| 159 | ✗ | return eval_cps_load_and_define(tokenizer, symbol, false); | |
| 160 | } | ||
| 161 | |||
| 162 | 8722 | lbm_cid lbm_load_and_eval_program(lbm_char_channel_t *tokenizer, char *name) { | |
| 163 | 8722 | return eval_cps_load_and_eval(tokenizer, true, false, name); | |
| 164 | } | ||
| 165 | |||
| 166 | 8722 | lbm_cid lbm_load_and_eval_program_incremental(lbm_char_channel_t *tokenizer, char *name) { | |
| 167 | 8722 | return eval_cps_load_and_eval(tokenizer, true, true, name); | |
| 168 | } | ||
| 169 | |||
| 170 | ✗ | lbm_cid lbm_load_and_define_program(lbm_char_channel_t *tokenizer, char *symbol) { | |
| 171 | ✗ | return eval_cps_load_and_define(tokenizer, symbol, true); | |
| 172 | } | ||
| 173 | |||
| 174 | ✗ | lbm_cid lbm_eval_defined_expression(char *symbol) { | |
| 175 | ✗ | return lbm_eval_defined(symbol, false); | |
| 176 | } | ||
| 177 | |||
| 178 | ✗ | lbm_cid lbm_eval_defined_program(char *symbol) { | |
| 179 | ✗ | return lbm_eval_defined(symbol, true); | |
| 180 | } | ||
| 181 | |||
| 182 | ✗ | int lbm_send_message(lbm_cid cid, lbm_value msg) { | |
| 183 | ✗ | int res = 0; | |
| 184 | |||
| 185 | ✗ | if (lbm_get_eval_state() == EVAL_CPS_STATE_PAUSED) { | |
| 186 | |||
| 187 | ✗ | lbm_value v = lbm_find_receiver_and_send(cid, msg); | |
| 188 | |||
| 189 | ✗ | if (lbm_type_of(v) == LBM_TYPE_SYMBOL && | |
| 190 | ✗ | lbm_dec_sym(v) == SYM_TRUE) { | |
| 191 | ✗ | res = 1; | |
| 192 | } | ||
| 193 | } | ||
| 194 | ✗ | return res; | |
| 195 | } | ||
| 196 | |||
| 197 | ✗ | int lbm_define(char *symbol, lbm_value value) { | |
| 198 | ✗ | int res = 0; | |
| 199 | |||
| 200 | lbm_uint sym_id; | ||
| 201 | ✗ | if (lbm_get_eval_state() == EVAL_CPS_STATE_PAUSED) { | |
| 202 | ✗ | if (!lbm_get_symbol_by_name(symbol, &sym_id)) { | |
| 203 | ✗ | if (!lbm_add_symbol_const_base(symbol, &sym_id)) { | |
| 204 | ✗ | return 0; | |
| 205 | } | ||
| 206 | } | ||
| 207 | ✗ | lbm_uint ix_key = sym_id & GLOBAL_ENV_MASK; | |
| 208 | ✗ | lbm_value *glob_env = lbm_get_global_env(); | |
| 209 | ✗ | glob_env[ix_key] = lbm_env_set(glob_env[ix_key], lbm_enc_sym(sym_id), value); | |
| 210 | } | ||
| 211 | ✗ | return res; | |
| 212 | } | ||
| 213 | |||
| 214 | ✗ | int lbm_undefine(char *symbol) { | |
| 215 | lbm_uint sym_id; | ||
| 216 | ✗ | if (!lbm_get_symbol_by_name(symbol, &sym_id)) | |
| 217 | ✗ | return 0; | |
| 218 | |||
| 219 | ✗ | lbm_value *glob_env = lbm_get_global_env(); | |
| 220 | ✗ | lbm_uint ix_key = sym_id & GLOBAL_ENV_MASK; | |
| 221 | ✗ | lbm_value new_env = lbm_env_drop_binding(glob_env[ix_key], lbm_enc_sym(sym_id)); | |
| 222 | |||
| 223 | ✗ | if (new_env == ENC_SYM_NOT_FOUND) return 0; | |
| 224 | ✗ | glob_env[ix_key] = new_env; | |
| 225 | ✗ | return 1; | |
| 226 | } | ||
| 227 | |||
| 228 | ✗ | int lbm_share_array(lbm_value *value, char *data, lbm_uint num_elt) { | |
| 229 | ✗ | return lbm_lift_array(value, data, num_elt); | |
| 230 | } | ||
| 231 | |||
| 232 | 112 | static bool share_const_array(lbm_value flash_cell, char *data, lbm_uint num_elt) { | |
| 233 | lbm_array_header_t flash_array_header; | ||
| 234 | 112 | flash_array_header.size = num_elt; | |
| 235 | 112 | flash_array_header.data = (lbm_uint*)data; | |
| 236 | lbm_uint flash_array_header_ptr; | ||
| 237 | 112 | lbm_flash_status s = lbm_write_const_raw((lbm_uint*)&flash_array_header, | |
| 238 | sizeof(lbm_array_header_t) / sizeof(lbm_uint), | ||
| 239 | &flash_array_header_ptr); | ||
| 240 |
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112 | if (s != LBM_FLASH_WRITE_OK) return false; |
| 241 | 112 | s = write_const_car(flash_cell, flash_array_header_ptr); | |
| 242 |
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112 | if (s != LBM_FLASH_WRITE_OK) return false; |
| 243 | 112 | s = write_const_cdr(flash_cell, ENC_SYM_ARRAY_TYPE); | |
| 244 |
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112 | if (s != LBM_FLASH_WRITE_OK) return false; |
| 245 | 112 | return true; | |
| 246 | } | ||
| 247 | |||
| 248 | 112 | int lbm_share_const_array(lbm_value *res, char *flash_ptr, lbm_uint num_elt) { | |
| 249 | 112 | lbm_value arr = 0; | |
| 250 | 112 | arr = LBM_PTR_BIT | LBM_TYPE_ARRAY; | |
| 251 | |||
| 252 | 112 | lbm_value flash_arr = 0; | |
| 253 | 112 | lbm_flash_status r = request_flash_storage_cell(arr, &flash_arr); | |
| 254 |
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112 | if (r == LBM_FLASH_WRITE_OK) { |
| 255 |
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112 | if (!share_const_array(flash_arr, flash_ptr, num_elt)) { |
| 256 | ✗ | return 0; | |
| 257 | } | ||
| 258 | } | ||
| 259 | |||
| 260 |
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112 | if (r == LBM_FLASH_WRITE_OK) { |
| 261 | 112 | *res = flash_arr; | |
| 262 | 112 | return 1; | |
| 263 | } | ||
| 264 | ✗ | return 0; | |
| 265 | } | ||
| 266 | |||
| 267 | 136420 | int lbm_create_array(lbm_value *value, lbm_uint num_elt) { | |
| 268 | 136420 | return lbm_heap_allocate_array(value, num_elt); | |
| 269 | } | ||
| 270 | |||
| 271 | |||
| 272 | ✗ | void lbm_clear_env(void) { | |
| 273 | |||
| 274 | ✗ | lbm_value *env = lbm_get_global_env(); | |
| 275 | ✗ | for (int i = 0; i < GLOBAL_ENV_ROOTS; i ++) { | |
| 276 | ✗ | env[i] = ENC_SYM_NIL; | |
| 277 | } | ||
| 278 | ✗ | lbm_perform_gc(); | |
| 279 | ✗ | } | |
| 280 | |||
| 281 | // Evaluator should be paused when running this. | ||
| 282 | // Running gc will reclaim the fv storage. | ||
| 283 | ✗ | bool lbm_flatten_env(int index, lbm_uint** data, lbm_uint *size) { | |
| 284 | ✗ | if (index < 0 || index >= GLOBAL_ENV_ROOTS) return false; | |
| 285 | ✗ | lbm_value *env = lbm_get_global_env(); | |
| 286 | |||
| 287 | ✗ | lbm_value fv = flatten_value(env[index]); | |
| 288 | |||
| 289 | ✗ | if (lbm_is_symbol(fv)) return false; | |
| 290 | |||
| 291 | ✗ | lbm_array_header_t *array = (lbm_array_header_t *)lbm_car(fv); | |
| 292 | ✗ | *size = array->size; | |
| 293 | ✗ | *data = array->data; | |
| 294 | ✗ | return true; | |
| 295 | } | ||
| 296 |