Mercurial > vim
annotate src/ex_eval.c @ 31468:005dbf7d37de
Added tag v9.0.1066 for changeset 4abd8f9edf470f38fdf98f2e53a46dee94e61f87
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Sat, 17 Dec 2022 11:45:06 +0100 |
| parents | 39698292a849 |
| children | 31fb1a760ad6 |
| rev | line source |
|---|---|
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 | |
| 10 /* | |
| 11 * ex_eval.c: functions for Ex command line for the +eval feature. | |
| 12 */ | |
| 13 | |
| 14 #include "vim.h" | |
| 15 | |
| 16 #if defined(FEAT_EVAL) || defined(PROTO) | |
| 17 | |
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18 static char *get_end_emsg(cstack_T *cstack); |
| 7 | 19 |
| 20 /* | |
| 21 * Exception handling terms: | |
| 22 * | |
| 23 * :try ":try" command \ | |
| 24 * ... try block | | |
| 25 * :catch RE ":catch" command | | |
| 26 * ... catch clause |- try conditional | |
| 27 * :finally ":finally" command | | |
| 28 * ... finally clause | | |
| 29 * :endtry ":endtry" command / | |
| 30 * | |
| 31 * The try conditional may have any number of catch clauses and at most one | |
| 32 * finally clause. A ":throw" command can be inside the try block, a catch | |
| 33 * clause, the finally clause, or in a function called or script sourced from | |
| 34 * there or even outside the try conditional. Try conditionals may be nested. | |
| 35 */ | |
| 36 | |
| 37 /* | |
| 38 * Configuration whether an exception is thrown on error or interrupt. When | |
| 39 * the preprocessor macros below evaluate to FALSE, an error (did_emsg) or | |
| 40 * interrupt (got_int) under an active try conditional terminates the script | |
| 41 * after the non-active finally clauses of all active try conditionals have been | |
| 42 * executed. Otherwise, errors and/or interrupts are converted into catchable | |
| 43 * exceptions (did_throw additionally set), which terminate the script only if | |
| 44 * not caught. For user exceptions, only did_throw is set. (Note: got_int can | |
| 4352 | 45 * be set asynchronously afterwards by a SIGINT, so did_throw && got_int is not |
| 7 | 46 * a reliant test that the exception currently being thrown is an interrupt |
| 47 * exception. Similarly, did_emsg can be set afterwards on an error in an | |
| 48 * (unskipped) conditional command inside an inactive conditional, so did_throw | |
| 49 * && did_emsg is not a reliant test that the exception currently being thrown | |
| 50 * is an error exception.) - The macros can be defined as expressions checking | |
| 51 * for a variable that is allowed to be changed during execution of a script. | |
| 52 */ | |
| 53 #if 0 | |
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54 // Expressions used for testing during the development phase. |
| 7 | 55 # define THROW_ON_ERROR (!eval_to_number("$VIMNOERRTHROW")) |
| 56 # define THROW_ON_INTERRUPT (!eval_to_number("$VIMNOINTTHROW")) | |
| 57 # define THROW_TEST | |
| 58 #else | |
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59 // Values used for the Vim release. |
| 7 | 60 # define THROW_ON_ERROR TRUE |
| 1880 | 61 # define THROW_ON_ERROR_TRUE |
| 7 | 62 # define THROW_ON_INTERRUPT TRUE |
| 1880 | 63 # define THROW_ON_INTERRUPT_TRUE |
| 7 | 64 #endif |
| 65 | |
| 66 /* | |
| 67 * When several errors appear in a row, setting "force_abort" is delayed until | |
| 68 * the failing command returned. "cause_abort" is set to TRUE meanwhile, in | |
| 69 * order to indicate that situation. This is useful when "force_abort" was set | |
| 70 * during execution of a function call from an expression: the aborting of the | |
| 71 * expression evaluation is done without producing any error messages, but all | |
| 72 * error messages on parsing errors during the expression evaluation are given | |
| 73 * (even if a try conditional is active). | |
| 74 */ | |
| 75 static int cause_abort = FALSE; | |
| 76 | |
| 77 /* | |
| 1214 | 78 * Return TRUE when immediately aborting on error, or when an interrupt |
| 7 | 79 * occurred or an exception was thrown but not caught. Use for ":{range}call" |
| 80 * to check whether an aborted function that does not handle a range itself | |
| 81 * should be called again for the next line in the range. Also used for | |
| 82 * cancelling expression evaluation after a function call caused an immediate | |
| 83 * abort. Note that the first emsg() call temporarily resets "force_abort" | |
| 84 * until the throw point for error messages has been reached. That is, during | |
| 85 * cancellation of an expression evaluation after an aborting function call or | |
| 86 * due to a parsing error, aborting() always returns the same value. | |
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87 * "got_int" is also set by calling interrupt(). |
| 7 | 88 */ |
| 89 int | |
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90 aborting(void) |
| 7 | 91 { |
| 92 return (did_emsg && force_abort) || got_int || did_throw; | |
| 93 } | |
| 94 | |
| 95 /* | |
| 96 * The value of "force_abort" is temporarily reset by the first emsg() call | |
| 97 * during an expression evaluation, and "cause_abort" is used instead. It might | |
| 98 * be necessary to restore "force_abort" even before the throw point for the | |
| 99 * error message has been reached. update_force_abort() should be called then. | |
| 100 */ | |
| 101 void | |
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102 update_force_abort(void) |
| 7 | 103 { |
| 104 if (cause_abort) | |
| 105 force_abort = TRUE; | |
| 106 } | |
| 107 | |
| 108 /* | |
| 109 * Return TRUE if a command with a subcommand resulting in "retcode" should | |
| 110 * abort the script processing. Can be used to suppress an autocommand after | |
| 111 * execution of a failing subcommand as long as the error message has not been | |
| 112 * displayed and actually caused the abortion. | |
| 113 */ | |
| 114 int | |
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115 should_abort(int retcode) |
| 7 | 116 { |
| 117 return ((retcode == FAIL && trylevel != 0 && !emsg_silent) || aborting()); | |
| 118 } | |
| 119 | |
| 120 /* | |
| 121 * Return TRUE if a function with the "abort" flag should not be considered | |
| 122 * ended on an error. This means that parsing commands is continued in order | |
| 123 * to find finally clauses to be executed, and that some errors in skipped | |
| 124 * commands are still reported. | |
| 125 */ | |
| 126 int | |
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127 aborted_in_try(void) |
| 7 | 128 { |
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129 // This function is only called after an error. In this case, "force_abort" |
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130 // determines whether searching for finally clauses is necessary. |
| 7 | 131 return force_abort; |
| 132 } | |
| 133 | |
| 134 /* | |
| 135 * cause_errthrow(): Cause a throw of an error exception if appropriate. | |
| 136 * Return TRUE if the error message should not be displayed by emsg(). | |
| 137 * Sets "ignore", if the emsg() call should be ignored completely. | |
| 138 * | |
| 139 * When several messages appear in the same command, the first is usually the | |
| 140 * most specific one and used as the exception value. The "severe" flag can be | |
| 141 * set to TRUE, if a later but severer message should be used instead. | |
| 142 */ | |
| 143 int | |
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144 cause_errthrow( |
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145 char_u *mesg, |
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146 int severe, |
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147 int *ignore) |
| 7 | 148 { |
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149 msglist_T *elem; |
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150 msglist_T **plist; |
| 7 | 151 |
| 152 /* | |
| 839 | 153 * Do nothing when displaying the interrupt message or reporting an |
| 154 * uncaught exception (which has already been discarded then) at the top | |
| 155 * level. Also when no exception can be thrown. The message will be | |
| 156 * displayed by emsg(). | |
| 7 | 157 */ |
| 158 if (suppress_errthrow) | |
| 159 return FALSE; | |
| 160 | |
| 161 /* | |
| 839 | 162 * If emsg() has not been called previously, temporarily reset |
| 163 * "force_abort" until the throw point for error messages has been | |
| 164 * reached. This ensures that aborting() returns the same value for all | |
| 165 * errors that appear in the same command. This means particularly that | |
| 166 * for parsing errors during expression evaluation emsg() will be called | |
| 167 * multiply, even when the expression is evaluated from a finally clause | |
| 168 * that was activated due to an aborting error, interrupt, or exception. | |
| 7 | 169 */ |
| 170 if (!did_emsg) | |
| 171 { | |
| 172 cause_abort = force_abort; | |
| 173 force_abort = FALSE; | |
| 174 } | |
| 175 | |
| 176 /* | |
| 177 * If no try conditional is active and no exception is being thrown and | |
| 178 * there has not been an error in a try conditional or a throw so far, do | |
| 839 | 179 * nothing (for compatibility of non-EH scripts). The message will then |
| 180 * be displayed by emsg(). When ":silent!" was used and we are not | |
| 181 * currently throwing an exception, do nothing. The message text will | |
| 182 * then be stored to v:errmsg by emsg() without displaying it. | |
| 7 | 183 */ |
| 184 if (((trylevel == 0 && !cause_abort) || emsg_silent) && !did_throw) | |
| 185 return FALSE; | |
| 186 | |
| 187 /* | |
| 188 * Ignore an interrupt message when inside a try conditional or when an | |
| 839 | 189 * exception is being thrown or when an error in a try conditional or |
| 190 * throw has been detected previously. This is important in order that an | |
| 7 | 191 * interrupt exception is catchable by the innermost try conditional and |
| 192 * not replaced by an interrupt message error exception. | |
| 193 */ | |
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194 if (mesg == (char_u *)_(e_interrupted)) |
| 7 | 195 { |
| 196 *ignore = TRUE; | |
| 197 return TRUE; | |
| 198 } | |
| 199 | |
| 200 /* | |
| 201 * Ensure that all commands in nested function calls and sourced files | |
| 202 * are aborted immediately. | |
| 203 */ | |
| 204 cause_abort = TRUE; | |
| 205 | |
| 206 /* | |
| 207 * When an exception is being thrown, some commands (like conditionals) are | |
| 208 * not skipped. Errors in those commands may affect what of the subsequent | |
| 209 * commands are regarded part of catch and finally clauses. Catching the | |
| 210 * exception would then cause execution of commands not intended by the | |
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211 * user, who wouldn't even get aware of the problem. Therefore, discard the |
| 7 | 212 * exception currently being thrown to prevent it from being caught. Just |
| 213 * execute finally clauses and terminate. | |
| 214 */ | |
| 215 if (did_throw) | |
| 216 { | |
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217 // When discarding an interrupt exception, reset got_int to prevent the |
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218 // same interrupt being converted to an exception again and discarding |
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219 // the error exception we are about to throw here. |
| 7 | 220 if (current_exception->type == ET_INTERRUPT) |
| 221 got_int = FALSE; | |
| 222 discard_current_exception(); | |
| 223 } | |
| 224 | |
| 225 #ifdef THROW_TEST | |
| 226 if (!THROW_ON_ERROR) | |
| 227 { | |
| 228 /* | |
| 229 * Print error message immediately without searching for a matching | |
| 230 * catch clause; just finally clauses are executed before the script | |
| 231 * is terminated. | |
| 232 */ | |
| 233 return FALSE; | |
| 234 } | |
| 235 else | |
| 236 #endif | |
| 237 { | |
| 238 /* | |
| 239 * Prepare the throw of an error exception, so that everything will | |
| 240 * be aborted (except for executing finally clauses), until the error | |
| 241 * exception is caught; if still uncaught at the top level, the error | |
| 242 * message will be displayed and the script processing terminated | |
| 243 * then. - This function has no access to the conditional stack. | |
| 244 * Thus, the actual throw is made after the failing command has | |
| 245 * returned. - Throw only the first of several errors in a row, except | |
| 246 * a severe error is following. | |
| 247 */ | |
| 248 if (msg_list != NULL) | |
| 249 { | |
| 250 plist = msg_list; | |
| 251 while (*plist != NULL) | |
| 252 plist = &(*plist)->next; | |
| 253 | |
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254 elem = ALLOC_CLEAR_ONE(msglist_T); |
| 7 | 255 if (elem == NULL) |
| 256 { | |
| 257 suppress_errthrow = TRUE; | |
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258 emsg(_(e_out_of_memory)); |
| 7 | 259 } |
| 260 else | |
| 261 { | |
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262 elem->msg = (char *)vim_strsave(mesg); |
| 7 | 263 if (elem->msg == NULL) |
| 264 { | |
| 265 vim_free(elem); | |
| 266 suppress_errthrow = TRUE; | |
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267 emsg(_(e_out_of_memory)); |
| 7 | 268 } |
| 269 else | |
| 270 { | |
| 271 elem->next = NULL; | |
| 272 elem->throw_msg = NULL; | |
| 273 *plist = elem; | |
| 274 if (plist == msg_list || severe) | |
| 275 { | |
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276 char *tmsg; |
| 7 | 277 |
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278 // Skip the extra "Vim " prefix for message "E458". |
| 7 | 279 tmsg = elem->msg; |
| 280 if (STRNCMP(tmsg, "Vim E", 5) == 0 | |
| 281 && VIM_ISDIGIT(tmsg[5]) | |
| 282 && VIM_ISDIGIT(tmsg[6]) | |
| 283 && VIM_ISDIGIT(tmsg[7]) | |
| 284 && tmsg[8] == ':' | |
| 285 && tmsg[9] == ' ') | |
| 286 (*msg_list)->throw_msg = &tmsg[4]; | |
| 287 else | |
| 288 (*msg_list)->throw_msg = tmsg; | |
| 289 } | |
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290 |
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291 // Get the source name and lnum now, it may change before |
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292 // reaching do_errthrow(). |
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293 elem->sfile = estack_sfile(ESTACK_NONE); |
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294 elem->slnum = SOURCING_LNUM; |
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295 elem->msg_compiling = estack_compiling; |
| 7 | 296 } |
| 297 } | |
| 298 } | |
| 299 return TRUE; | |
| 300 } | |
| 301 } | |
| 302 | |
| 303 /* | |
| 304 * Free a "msg_list" and the messages it contains. | |
| 305 */ | |
| 306 static void | |
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307 free_msglist(msglist_T *l) |
| 7 | 308 { |
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309 msglist_T *messages, *next; |
| 7 | 310 |
| 311 messages = l; | |
| 312 while (messages != NULL) | |
| 313 { | |
| 314 next = messages->next; | |
| 315 vim_free(messages->msg); | |
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316 vim_free(messages->sfile); |
| 7 | 317 vim_free(messages); |
| 318 messages = next; | |
| 319 } | |
| 320 } | |
| 321 | |
| 322 /* | |
| 5517 | 323 * Free global "*msg_list" and the messages it contains, then set "*msg_list" |
| 324 * to NULL. | |
| 325 */ | |
| 326 void | |
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327 free_global_msglist(void) |
| 5517 | 328 { |
| 329 free_msglist(*msg_list); | |
| 330 *msg_list = NULL; | |
| 331 } | |
| 332 | |
| 333 /* | |
| 7 | 334 * Throw the message specified in the call to cause_errthrow() above as an |
| 335 * error exception. If cstack is NULL, postpone the throw until do_cmdline() | |
| 336 * has returned (see do_one_cmd()). | |
| 337 */ | |
| 338 void | |
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339 do_errthrow(cstack_T *cstack, char_u *cmdname) |
| 7 | 340 { |
| 341 /* | |
| 342 * Ensure that all commands in nested function calls and sourced files | |
| 343 * are aborted immediately. | |
| 344 */ | |
| 345 if (cause_abort) | |
| 346 { | |
| 347 cause_abort = FALSE; | |
| 348 force_abort = TRUE; | |
| 349 } | |
| 350 | |
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351 // If no exception is to be thrown or the conversion should be done after |
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352 // returning to a previous invocation of do_one_cmd(), do nothing. |
| 1046 | 353 if (msg_list == NULL || *msg_list == NULL) |
| 7 | 354 return; |
| 355 | |
| 356 if (throw_exception(*msg_list, ET_ERROR, cmdname) == FAIL) | |
| 357 free_msglist(*msg_list); | |
| 358 else | |
| 359 { | |
| 360 if (cstack != NULL) | |
| 361 do_throw(cstack); | |
| 362 else | |
| 363 need_rethrow = TRUE; | |
| 364 } | |
| 365 *msg_list = NULL; | |
| 366 } | |
| 367 | |
| 368 /* | |
| 369 * do_intthrow(): Replace the current exception by an interrupt or interrupt | |
| 370 * exception if appropriate. Return TRUE if the current exception is discarded, | |
| 371 * FALSE otherwise. | |
| 372 */ | |
| 373 int | |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
374 do_intthrow(cstack_T *cstack) |
| 7 | 375 { |
| 376 /* | |
| 377 * If no interrupt occurred or no try conditional is active and no exception | |
| 378 * is being thrown, do nothing (for compatibility of non-EH scripts). | |
| 379 */ | |
| 380 if (!got_int || (trylevel == 0 && !did_throw)) | |
| 381 return FALSE; | |
| 382 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
383 #ifdef THROW_TEST // avoid warning for condition always true |
| 7 | 384 if (!THROW_ON_INTERRUPT) |
| 385 { | |
| 386 /* | |
| 387 * The interrupt aborts everything except for executing finally clauses. | |
| 388 * Discard any user or error or interrupt exception currently being | |
| 389 * thrown. | |
| 390 */ | |
| 391 if (did_throw) | |
| 392 discard_current_exception(); | |
| 393 } | |
| 394 else | |
| 395 #endif | |
| 396 { | |
| 397 /* | |
| 398 * Throw an interrupt exception, so that everything will be aborted | |
| 399 * (except for executing finally clauses), until the interrupt exception | |
| 400 * is caught; if still uncaught at the top level, the script processing | |
| 401 * will be terminated then. - If an interrupt exception is already | |
| 402 * being thrown, do nothing. | |
| 403 * | |
| 404 */ | |
| 405 if (did_throw) | |
| 406 { | |
| 407 if (current_exception->type == ET_INTERRUPT) | |
| 408 return FALSE; | |
| 409 | |
|
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patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
410 // An interrupt exception replaces any user or error exception. |
| 7 | 411 discard_current_exception(); |
| 412 } | |
| 413 if (throw_exception("Vim:Interrupt", ET_INTERRUPT, NULL) != FAIL) | |
| 414 do_throw(cstack); | |
| 415 } | |
| 416 | |
| 417 return TRUE; | |
| 418 } | |
| 419 | |
| 420 /* | |
| 5517 | 421 * Get an exception message that is to be stored in current_exception->value. |
| 7 | 422 */ |
|
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patch 8.1.0743: giving error messages is not flexible
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diff
changeset
|
423 char * |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
424 get_exception_string( |
|
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
425 void *value, |
|
10361
147f45c283e1
commit https://github.com/vim/vim/commit/8a5883b7488e492419dde7e1637cc72f2d566ba4
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
426 except_type_T type, |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
427 char_u *cmdname, |
|
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
428 int *should_free) |
| 7 | 429 { |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
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parents:
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diff
changeset
|
430 char *ret; |
|
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
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diff
changeset
|
431 char *mesg; |
| 7 | 432 int cmdlen; |
|
15470
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patch 8.1.0743: giving error messages is not flexible
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diff
changeset
|
433 char *p, *val; |
| 7 | 434 |
| 435 if (type == ET_ERROR) | |
| 436 { | |
|
8418
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commit https://github.com/vim/vim/commit/9ef00be261115acb5bae3b3ca45c1d86a19ba2c7
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
437 *should_free = TRUE; |
|
20538
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patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
438 mesg = ((msglist_T *)value)->throw_msg; |
| 7 | 439 if (cmdname != NULL && *cmdname != NUL) |
| 440 { | |
| 835 | 441 cmdlen = (int)STRLEN(cmdname); |
|
15470
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patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
442 ret = (char *)vim_strnsave((char_u *)"Vim(", |
|
20830
9064044fd4f6
patch 8.2.0967: unnecessary type casts for vim_strnsave()
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
443 4 + cmdlen + 2 + STRLEN(mesg)); |
| 5517 | 444 if (ret == NULL) |
| 445 return ret; | |
| 446 STRCPY(&ret[4], cmdname); | |
| 447 STRCPY(&ret[4 + cmdlen], "):"); | |
| 448 val = ret + 4 + cmdlen + 2; | |
| 7 | 449 } |
| 450 else | |
| 451 { | |
|
20830
9064044fd4f6
patch 8.2.0967: unnecessary type casts for vim_strnsave()
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
452 ret = (char *)vim_strnsave((char_u *)"Vim:", 4 + STRLEN(mesg)); |
| 5517 | 453 if (ret == NULL) |
| 454 return ret; | |
| 455 val = ret + 4; | |
| 7 | 456 } |
| 457 | |
|
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patch 8.1.2379: using old C style comments
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diff
changeset
|
458 // msg_add_fname may have been used to prefix the message with a file |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
459 // name in quotes. In the exception value, put the file name in |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
460 // parentheses and move it to the end. |
| 7 | 461 for (p = mesg; ; p++) |
| 462 { | |
| 463 if (*p == NUL | |
| 464 || (*p == 'E' | |
| 465 && VIM_ISDIGIT(p[1]) | |
| 466 && (p[2] == ':' | |
| 467 || (VIM_ISDIGIT(p[2]) | |
| 468 && (p[3] == ':' | |
| 469 || (VIM_ISDIGIT(p[3]) | |
| 470 && p[4] == ':')))))) | |
| 471 { | |
| 273 | 472 if (*p == NUL || p == mesg) |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
473 STRCAT(val, mesg); // 'E123' missing or at beginning |
| 7 | 474 else |
| 475 { | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
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diff
changeset
|
476 // '"filename" E123: message text' |
| 7 | 477 if (mesg[0] != '"' || p-2 < &mesg[1] || |
| 478 p[-2] != '"' || p[-1] != ' ') | |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
479 // "E123:" is part of the file name. |
| 7 | 480 continue; |
| 481 | |
| 482 STRCAT(val, p); | |
| 483 p[-2] = NUL; | |
| 484 sprintf((char *)(val + STRLEN(p)), " (%s)", &mesg[1]); | |
| 485 p[-2] = '"'; | |
| 486 } | |
| 487 break; | |
| 488 } | |
| 489 } | |
| 490 } | |
| 491 else | |
| 5517 | 492 { |
| 493 *should_free = FALSE; | |
|
15470
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patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
494 ret = value; |
| 5517 | 495 } |
| 496 | |
| 497 return ret; | |
| 498 } | |
| 499 | |
| 500 | |
| 501 /* | |
| 502 * Throw a new exception. Return FAIL when out of memory or it was tried to | |
| 503 * throw an illegal user exception. "value" is the exception string for a | |
| 504 * user or interrupt exception, or points to a message list in case of an | |
| 505 * error exception. | |
| 506 */ | |
|
19181
94eda51ba9ba
patch 8.2.0149: maintaining a Vim9 branch separately is more work
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parents:
18991
diff
changeset
|
507 int |
|
10361
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commit https://github.com/vim/vim/commit/8a5883b7488e492419dde7e1637cc72f2d566ba4
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
508 throw_exception(void *value, except_type_T type, char_u *cmdname) |
| 5517 | 509 { |
| 510 except_T *excp; | |
| 511 int should_free; | |
| 512 | |
| 513 /* | |
| 514 * Disallow faking Interrupt or error exceptions as user exceptions. They | |
| 515 * would be treated differently from real interrupt or error exceptions | |
| 516 * when no active try block is found, see do_cmdline(). | |
| 517 */ | |
| 518 if (type == ET_USER) | |
| 519 { | |
| 520 if (STRNCMP((char_u *)value, "Vim", 3) == 0 | |
| 521 && (((char_u *)value)[3] == NUL || ((char_u *)value)[3] == ':' | |
| 522 || ((char_u *)value)[3] == '(')) | |
| 523 { | |
|
26948
51ddf6740ac6
patch 8.2.4003: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26917
diff
changeset
|
524 emsg(_(e_cannot_throw_exceptions_with_vim_prefix)); |
| 5517 | 525 goto fail; |
| 526 } | |
| 527 } | |
| 528 | |
|
16825
ce04ebdf26b8
patch 8.1.1414: alloc() returning "char_u *" causes a lot of type casts
Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
529 excp = ALLOC_ONE(except_T); |
| 5517 | 530 if (excp == NULL) |
| 531 goto nomem; | |
| 532 | |
| 533 if (type == ET_ERROR) | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
534 // Store the original message and prefix the exception value with |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
535 // "Vim:" or, if a command name is given, "Vim(cmdname):". |
|
20538
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
536 excp->messages = (msglist_T *)value; |
| 5517 | 537 |
| 538 excp->value = get_exception_string(value, type, cmdname, &should_free); | |
| 539 if (excp->value == NULL && should_free) | |
| 540 goto nomem; | |
| 7 | 541 |
| 542 excp->type = type; | |
|
20538
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
543 if (type == ET_ERROR && ((msglist_T *)value)->sfile != NULL) |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
544 { |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
545 msglist_T *entry = (msglist_T *)value; |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
546 |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
547 excp->throw_name = entry->sfile; |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
548 entry->sfile = NULL; |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
549 excp->throw_lnum = entry->slnum; |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
550 } |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
551 else |
| 7 | 552 { |
|
22208
a607f02fd17a
patch 8.2.1653: expand('<stack>') does not include the final line number
Bram Moolenaar <Bram@vim.org>
parents:
21493
diff
changeset
|
553 excp->throw_name = estack_sfile(ESTACK_NONE); |
|
20538
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
554 if (excp->throw_name == NULL) |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
555 excp->throw_name = vim_strsave((char_u *)""); |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
556 if (excp->throw_name == NULL) |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
557 { |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
558 if (should_free) |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
559 vim_free(excp->value); |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
560 goto nomem; |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
561 } |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
562 excp->throw_lnum = SOURCING_LNUM; |
| 7 | 563 } |
| 564 | |
| 565 if (p_verbose >= 13 || debug_break_level > 0) | |
| 566 { | |
| 567 int save_msg_silent = msg_silent; | |
| 568 | |
| 569 if (debug_break_level > 0) | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
570 msg_silent = FALSE; // display messages |
| 293 | 571 else |
| 572 verbose_enter(); | |
| 7 | 573 ++no_wait_return; |
| 293 | 574 if (debug_break_level > 0 || *p_vfile == NUL) |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
575 msg_scroll = TRUE; // always scroll up, don't overwrite |
| 293 | 576 |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
577 smsg(_("Exception thrown: %s"), excp->value); |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
578 msg_puts("\n"); // don't overwrite this either |
| 293 | 579 |
| 580 if (debug_break_level > 0 || *p_vfile == NUL) | |
| 581 cmdline_row = msg_row; | |
| 7 | 582 --no_wait_return; |
| 583 if (debug_break_level > 0) | |
| 584 msg_silent = save_msg_silent; | |
| 293 | 585 else |
| 586 verbose_leave(); | |
| 7 | 587 } |
| 588 | |
| 589 current_exception = excp; | |
| 590 return OK; | |
| 591 | |
| 592 nomem: | |
| 593 vim_free(excp); | |
| 594 suppress_errthrow = TRUE; | |
|
25306
078edc1821bf
patch 8.2.3190: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
25202
diff
changeset
|
595 emsg(_(e_out_of_memory)); |
| 7 | 596 fail: |
| 597 current_exception = NULL; | |
| 598 return FAIL; | |
| 599 } | |
| 600 | |
| 601 /* | |
| 602 * Discard an exception. "was_finished" is set when the exception has been | |
| 603 * caught and the catch clause has been ended normally. | |
| 604 */ | |
| 605 static void | |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
606 discard_exception(except_T *excp, int was_finished) |
| 7 | 607 { |
| 608 char_u *saved_IObuff; | |
| 609 | |
|
23235
22037d6da577
patch 8.2.2163: crash when discarded exception is the current exception
Bram Moolenaar <Bram@vim.org>
parents:
22643
diff
changeset
|
610 if (current_exception == excp) |
|
22037d6da577
patch 8.2.2163: crash when discarded exception is the current exception
Bram Moolenaar <Bram@vim.org>
parents:
22643
diff
changeset
|
611 current_exception = NULL; |
| 7 | 612 if (excp == NULL) |
| 613 { | |
|
10359
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
614 internal_error("discard_exception()"); |
| 7 | 615 return; |
| 616 } | |
| 617 | |
| 618 if (p_verbose >= 13 || debug_break_level > 0) | |
| 619 { | |
| 620 int save_msg_silent = msg_silent; | |
| 621 | |
| 622 saved_IObuff = vim_strsave(IObuff); | |
| 623 if (debug_break_level > 0) | |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
624 msg_silent = FALSE; // display messages |
| 293 | 625 else |
| 626 verbose_enter(); | |
| 7 | 627 ++no_wait_return; |
| 293 | 628 if (debug_break_level > 0 || *p_vfile == NUL) |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
629 msg_scroll = TRUE; // always scroll up, don't overwrite |
| 273 | 630 smsg(was_finished |
|
15470
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patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
631 ? _("Exception finished: %s") |
|
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
632 : _("Exception discarded: %s"), |
| 7 | 633 excp->value); |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
634 msg_puts("\n"); // don't overwrite this either |
| 293 | 635 if (debug_break_level > 0 || *p_vfile == NUL) |
| 636 cmdline_row = msg_row; | |
| 7 | 637 --no_wait_return; |
| 638 if (debug_break_level > 0) | |
| 639 msg_silent = save_msg_silent; | |
| 293 | 640 else |
| 641 verbose_leave(); | |
| 7 | 642 STRCPY(IObuff, saved_IObuff); |
| 643 vim_free(saved_IObuff); | |
| 644 } | |
| 645 if (excp->type != ET_INTERRUPT) | |
| 646 vim_free(excp->value); | |
| 647 if (excp->type == ET_ERROR) | |
| 648 free_msglist(excp->messages); | |
| 649 vim_free(excp->throw_name); | |
| 650 vim_free(excp); | |
| 651 } | |
| 652 | |
| 653 /* | |
| 654 * Discard the exception currently being thrown. | |
| 655 */ | |
| 656 void | |
|
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changeset
|
657 discard_current_exception(void) |
| 7 | 658 { |
|
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|
659 if (current_exception != NULL) |
|
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|
660 discard_exception(current_exception, FALSE); |
| 7 | 661 did_throw = FALSE; |
| 662 need_rethrow = FALSE; | |
| 663 } | |
| 664 | |
| 665 /* | |
| 666 * Put an exception on the caught stack. | |
| 667 */ | |
|
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668 void |
|
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changeset
|
669 catch_exception(except_T *excp) |
| 7 | 670 { |
| 671 excp->caught = caught_stack; | |
| 672 caught_stack = excp; | |
|
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673 set_vim_var_string(VV_EXCEPTION, (char_u *)excp->value, -1); |
| 7 | 674 if (*excp->throw_name != NUL) |
| 675 { | |
| 676 if (excp->throw_lnum != 0) | |
| 273 | 677 vim_snprintf((char *)IObuff, IOSIZE, _("%s, line %ld"), |
| 678 excp->throw_name, (long)excp->throw_lnum); | |
| 7 | 679 else |
| 273 | 680 vim_snprintf((char *)IObuff, IOSIZE, "%s", excp->throw_name); |
| 7 | 681 set_vim_var_string(VV_THROWPOINT, IObuff, -1); |
| 682 } | |
| 683 else | |
|
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684 // throw_name not set on an exception from a command that was typed. |
| 7 | 685 set_vim_var_string(VV_THROWPOINT, NULL, -1); |
| 686 | |
| 687 if (p_verbose >= 13 || debug_break_level > 0) | |
| 688 { | |
| 689 int save_msg_silent = msg_silent; | |
| 690 | |
| 691 if (debug_break_level > 0) | |
|
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692 msg_silent = FALSE; // display messages |
| 293 | 693 else |
| 694 verbose_enter(); | |
| 7 | 695 ++no_wait_return; |
| 293 | 696 if (debug_break_level > 0 || *p_vfile == NUL) |
|
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697 msg_scroll = TRUE; // always scroll up, don't overwrite |
| 293 | 698 |
|
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699 smsg(_("Exception caught: %s"), excp->value); |
|
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700 msg_puts("\n"); // don't overwrite this either |
| 293 | 701 |
| 702 if (debug_break_level > 0 || *p_vfile == NUL) | |
| 703 cmdline_row = msg_row; | |
| 7 | 704 --no_wait_return; |
| 705 if (debug_break_level > 0) | |
| 706 msg_silent = save_msg_silent; | |
| 293 | 707 else |
| 708 verbose_leave(); | |
| 7 | 709 } |
| 710 } | |
| 711 | |
| 712 /* | |
| 713 * Remove an exception from the caught stack. | |
| 714 */ | |
| 715 static void | |
|
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716 finish_exception(except_T *excp) |
| 7 | 717 { |
| 718 if (excp != caught_stack) | |
|
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719 internal_error("finish_exception()"); |
| 7 | 720 caught_stack = caught_stack->caught; |
| 721 if (caught_stack != NULL) | |
| 722 { | |
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723 set_vim_var_string(VV_EXCEPTION, (char_u *)caught_stack->value, -1); |
| 7 | 724 if (*caught_stack->throw_name != NUL) |
| 725 { | |
| 726 if (caught_stack->throw_lnum != 0) | |
| 273 | 727 vim_snprintf((char *)IObuff, IOSIZE, |
| 7 | 728 _("%s, line %ld"), caught_stack->throw_name, |
| 729 (long)caught_stack->throw_lnum); | |
| 730 else | |
| 273 | 731 vim_snprintf((char *)IObuff, IOSIZE, "%s", |
| 732 caught_stack->throw_name); | |
| 7 | 733 set_vim_var_string(VV_THROWPOINT, IObuff, -1); |
| 734 } | |
| 735 else | |
|
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736 // throw_name not set on an exception from a command that was |
|
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737 // typed. |
| 7 | 738 set_vim_var_string(VV_THROWPOINT, NULL, -1); |
| 739 } | |
| 740 else | |
| 741 { | |
| 742 set_vim_var_string(VV_EXCEPTION, NULL, -1); | |
| 743 set_vim_var_string(VV_THROWPOINT, NULL, -1); | |
| 744 } | |
| 745 | |
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|
746 // Discard the exception, but use the finish message for 'verbose'. |
| 7 | 747 discard_exception(excp, TRUE); |
| 748 } | |
| 749 | |
| 750 /* | |
| 751 * Flags specifying the message displayed by report_pending. | |
| 752 */ | |
| 753 #define RP_MAKE 0 | |
| 754 #define RP_RESUME 1 | |
| 755 #define RP_DISCARD 2 | |
| 756 | |
| 757 /* | |
| 758 * Report information about something pending in a finally clause if required by | |
| 759 * the 'verbose' option or when debugging. "action" tells whether something is | |
| 760 * made pending or something pending is resumed or discarded. "pending" tells | |
| 761 * what is pending. "value" specifies the return value for a pending ":return" | |
| 762 * or the exception value for a pending exception. | |
| 763 */ | |
| 764 static void | |
|
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|
765 report_pending(int action, int pending, void *value) |
| 7 | 766 { |
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767 char *mesg; |
| 7 | 768 char *s; |
| 769 int save_msg_silent; | |
| 770 | |
| 771 | |
| 772 switch (action) | |
| 773 { | |
| 774 case RP_MAKE: | |
|
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775 mesg = _("%s made pending"); |
| 7 | 776 break; |
| 777 case RP_RESUME: | |
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778 mesg = _("%s resumed"); |
| 7 | 779 break; |
|
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780 // case RP_DISCARD: |
| 7 | 781 default: |
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782 mesg = _("%s discarded"); |
| 7 | 783 break; |
| 784 } | |
| 785 | |
| 786 switch (pending) | |
| 787 { | |
| 788 case CSTP_NONE: | |
| 789 return; | |
| 790 | |
| 791 case CSTP_CONTINUE: | |
| 792 s = ":continue"; | |
| 793 break; | |
| 794 case CSTP_BREAK: | |
| 795 s = ":break"; | |
| 796 break; | |
| 797 case CSTP_FINISH: | |
| 798 s = ":finish"; | |
| 799 break; | |
| 800 case CSTP_RETURN: | |
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801 // ":return" command producing value, allocated |
| 7 | 802 s = (char *)get_return_cmd(value); |
| 803 break; | |
| 804 | |
| 805 default: | |
| 806 if (pending & CSTP_THROW) | |
| 807 { | |
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808 vim_snprintf((char *)IObuff, IOSIZE, mesg, _("Exception")); |
|
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809 mesg = (char *)vim_strnsave(IObuff, STRLEN(IObuff) + 4); |
| 7 | 810 STRCAT(mesg, ": %s"); |
| 811 s = (char *)((except_T *)value)->value; | |
| 812 } | |
| 813 else if ((pending & CSTP_ERROR) && (pending & CSTP_INTERRUPT)) | |
| 814 s = _("Error and interrupt"); | |
| 815 else if (pending & CSTP_ERROR) | |
| 816 s = _("Error"); | |
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817 else // if (pending & CSTP_INTERRUPT) |
| 7 | 818 s = _("Interrupt"); |
| 819 } | |
| 820 | |
| 821 save_msg_silent = msg_silent; | |
| 822 if (debug_break_level > 0) | |
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823 msg_silent = FALSE; // display messages |
| 7 | 824 ++no_wait_return; |
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825 msg_scroll = TRUE; // always scroll up, don't overwrite |
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826 smsg(mesg, s); |
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827 msg_puts("\n"); // don't overwrite this either |
| 7 | 828 cmdline_row = msg_row; |
| 829 --no_wait_return; | |
| 830 if (debug_break_level > 0) | |
| 831 msg_silent = save_msg_silent; | |
| 832 | |
| 833 if (pending == CSTP_RETURN) | |
| 834 vim_free(s); | |
| 835 else if (pending & CSTP_THROW) | |
| 836 vim_free(mesg); | |
| 837 } | |
| 838 | |
| 839 /* | |
| 840 * If something is made pending in a finally clause, report it if required by | |
| 841 * the 'verbose' option or when debugging. | |
| 842 */ | |
| 843 void | |
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844 report_make_pending(int pending, void *value) |
| 7 | 845 { |
| 846 if (p_verbose >= 14 || debug_break_level > 0) | |
| 293 | 847 { |
| 848 if (debug_break_level <= 0) | |
| 849 verbose_enter(); | |
| 7 | 850 report_pending(RP_MAKE, pending, value); |
| 293 | 851 if (debug_break_level <= 0) |
| 852 verbose_leave(); | |
| 853 } | |
| 7 | 854 } |
| 855 | |
| 856 /* | |
| 857 * If something pending in a finally clause is resumed at the ":endtry", report | |
| 858 * it if required by the 'verbose' option or when debugging. | |
| 859 */ | |
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860 static void |
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|
861 report_resume_pending(int pending, void *value) |
| 7 | 862 { |
| 863 if (p_verbose >= 14 || debug_break_level > 0) | |
| 293 | 864 { |
| 865 if (debug_break_level <= 0) | |
| 866 verbose_enter(); | |
| 7 | 867 report_pending(RP_RESUME, pending, value); |
| 293 | 868 if (debug_break_level <= 0) |
| 869 verbose_leave(); | |
| 870 } | |
| 7 | 871 } |
| 872 | |
| 873 /* | |
| 874 * If something pending in a finally clause is discarded, report it if required | |
| 875 * by the 'verbose' option or when debugging. | |
| 876 */ | |
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877 static void |
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878 report_discard_pending(int pending, void *value) |
| 7 | 879 { |
| 880 if (p_verbose >= 14 || debug_break_level > 0) | |
| 293 | 881 { |
| 882 if (debug_break_level <= 0) | |
| 883 verbose_enter(); | |
| 7 | 884 report_pending(RP_DISCARD, pending, value); |
| 293 | 885 if (debug_break_level <= 0) |
| 886 verbose_leave(); | |
| 887 } | |
| 7 | 888 } |
| 889 | |
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890 /* |
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891 * Return TRUE if "arg" is only a variable, register, environment variable, |
|
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892 * option name or string. |
|
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893 */ |
|
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894 int |
|
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895 cmd_is_name_only(char_u *arg) |
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896 { |
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897 char_u *p = arg; |
|
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898 char_u *alias = NULL; |
|
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899 int name_only = FALSE; |
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900 |
|
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901 if (*p == '@') |
|
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902 { |
|
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903 ++p; |
|
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904 if (*p != NUL) |
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905 ++p; |
|
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906 } |
|
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907 else if (*p == '\'' || *p == '"') |
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908 { |
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909 int r; |
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910 |
|
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|
911 if (*p == '"') |
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912 r = eval_string(&p, NULL, FALSE, FALSE); |
|
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913 else |
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914 r = eval_lit_string(&p, NULL, FALSE, FALSE); |
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915 if (r == FAIL) |
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916 return FALSE; |
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917 } |
|
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918 else |
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269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
919 { |
|
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
920 if (*p == '&') |
|
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
921 { |
|
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
922 ++p; |
|
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
923 if (STRNCMP("l:", p, 2) == 0 || STRNCMP("g:", p, 2) == 0) |
|
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
924 p += 2; |
|
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
925 } |
|
26250
3711e56f7e7b
patch 8.2.3656: Vim9: no error for an evironment variable by itself
Bram Moolenaar <Bram@vim.org>
parents:
26236
diff
changeset
|
926 else if (*p == '$') |
|
3711e56f7e7b
patch 8.2.3656: Vim9: no error for an evironment variable by itself
Bram Moolenaar <Bram@vim.org>
parents:
26236
diff
changeset
|
927 ++p; |
|
30071
6a8c2ff5b2ef
patch 9.0.0373: Coverity warns for NULL check and unused return value
Bram Moolenaar <Bram@vim.org>
parents:
28895
diff
changeset
|
928 (void)get_name_len(&p, &alias, FALSE, FALSE); |
|
26228
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
929 } |
|
25680
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
25575
diff
changeset
|
930 name_only = ends_excmd2(arg, skipwhite(p)); |
|
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
25575
diff
changeset
|
931 vim_free(alias); |
|
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
25575
diff
changeset
|
932 return name_only; |
|
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
25575
diff
changeset
|
933 } |
| 7 | 934 |
| 935 /* | |
|
17620
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
936 * ":eval". |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
937 */ |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
938 void |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
939 ex_eval(exarg_T *eap) |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
940 { |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
941 typval_T tv; |
|
20992
7ee565134d4a
patch 8.2.1047: Vim9: script cannot use line continuation like :def function
Bram Moolenaar <Bram@vim.org>
parents:
20830
diff
changeset
|
942 evalarg_T evalarg; |
|
25202
e5d85e83a887
patch 8.2.3137: Vim9: no error when a line only has a variable name
Bram Moolenaar <Bram@vim.org>
parents:
25180
diff
changeset
|
943 int name_only = FALSE; |
|
e5d85e83a887
patch 8.2.3137: Vim9: no error when a line only has a variable name
Bram Moolenaar <Bram@vim.org>
parents:
25180
diff
changeset
|
944 long lnum = SOURCING_LNUM; |
|
e5d85e83a887
patch 8.2.3137: Vim9: no error when a line only has a variable name
Bram Moolenaar <Bram@vim.org>
parents:
25180
diff
changeset
|
945 |
|
e5d85e83a887
patch 8.2.3137: Vim9: no error when a line only has a variable name
Bram Moolenaar <Bram@vim.org>
parents:
25180
diff
changeset
|
946 if (in_vim9script()) |
|
25680
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
25575
diff
changeset
|
947 name_only = cmd_is_name_only(eap->arg); |
|
17620
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
948 |
|
21118
b0baa80cb53f
patch 8.2.1110: Vim9: line continuation does not work in function arguments
Bram Moolenaar <Bram@vim.org>
parents:
21058
diff
changeset
|
949 fill_evalarg_from_eap(&evalarg, eap, eap->skip); |
|
20992
7ee565134d4a
patch 8.2.1047: Vim9: script cannot use line continuation like :def function
Bram Moolenaar <Bram@vim.org>
parents:
20830
diff
changeset
|
950 |
|
20996
3af71cbcfdbe
patch 8.2.1049: Vim9: leaking memory when using continuation line
Bram Moolenaar <Bram@vim.org>
parents:
20992
diff
changeset
|
951 if (eval0(eap->arg, &tv, eap, &evalarg) == OK) |
|
25202
e5d85e83a887
patch 8.2.3137: Vim9: no error when a line only has a variable name
Bram Moolenaar <Bram@vim.org>
parents:
25180
diff
changeset
|
952 { |
|
17620
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
953 clear_tv(&tv); |
|
28696
a090c60278f5
patch 8.2.4872: Vim9: no error for using an expression only
Bram Moolenaar <Bram@vim.org>
parents:
28299
diff
changeset
|
954 if (in_vim9script() && name_only |
|
a090c60278f5
patch 8.2.4872: Vim9: no error for using an expression only
Bram Moolenaar <Bram@vim.org>
parents:
28299
diff
changeset
|
955 && (evalarg.eval_tofree == NULL |
|
a090c60278f5
patch 8.2.4872: Vim9: no error for using an expression only
Bram Moolenaar <Bram@vim.org>
parents:
28299
diff
changeset
|
956 || ends_excmd2(evalarg.eval_tofree, |
|
a090c60278f5
patch 8.2.4872: Vim9: no error for using an expression only
Bram Moolenaar <Bram@vim.org>
parents:
28299
diff
changeset
|
957 skipwhite(evalarg.eval_tofree)))) |
|
a090c60278f5
patch 8.2.4872: Vim9: no error for using an expression only
Bram Moolenaar <Bram@vim.org>
parents:
28299
diff
changeset
|
958 { |
|
a090c60278f5
patch 8.2.4872: Vim9: no error for using an expression only
Bram Moolenaar <Bram@vim.org>
parents:
28299
diff
changeset
|
959 SOURCING_LNUM = lnum; |
|
25202
e5d85e83a887
patch 8.2.3137: Vim9: no error when a line only has a variable name
Bram Moolenaar <Bram@vim.org>
parents:
25180
diff
changeset
|
960 semsg(_(e_expression_without_effect_str), eap->arg); |
|
28696
a090c60278f5
patch 8.2.4872: Vim9: no error for using an expression only
Bram Moolenaar <Bram@vim.org>
parents:
28299
diff
changeset
|
961 } |
|
25202
e5d85e83a887
patch 8.2.3137: Vim9: no error when a line only has a variable name
Bram Moolenaar <Bram@vim.org>
parents:
25180
diff
changeset
|
962 } |
|
21058
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
parents:
21040
diff
changeset
|
963 |
|
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
parents:
21040
diff
changeset
|
964 clear_evalarg(&evalarg, eap); |
|
17620
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
965 } |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
966 |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
967 /* |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
968 * Start a new scope/block. Caller should have checked that cs_idx is not |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
969 * exceeding CSTACK_LEN. |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
970 */ |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
971 static void |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
972 enter_block(cstack_T *cstack) |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
973 { |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
974 ++cstack->cs_idx; |
|
24022
29b15fbc2bcb
patch 8.2.2553: Vim9: Cannot put "|" after "{"
Bram Moolenaar <Bram@vim.org>
parents:
23752
diff
changeset
|
975 if (in_vim9script() && current_sctx.sc_sid > 0) |
|
22594
209c7aa56325
patch 8.2.1845: Vim9: function defined in a block can't use block variables
Bram Moolenaar <Bram@vim.org>
parents:
22555
diff
changeset
|
976 { |
|
209c7aa56325
patch 8.2.1845: Vim9: function defined in a block can't use block variables
Bram Moolenaar <Bram@vim.org>
parents:
22555
diff
changeset
|
977 scriptitem_T *si = SCRIPT_ITEM(current_sctx.sc_sid); |
|
209c7aa56325
patch 8.2.1845: Vim9: function defined in a block can't use block variables
Bram Moolenaar <Bram@vim.org>
parents:
22555
diff
changeset
|
978 |
|
209c7aa56325
patch 8.2.1845: Vim9: function defined in a block can't use block variables
Bram Moolenaar <Bram@vim.org>
parents:
22555
diff
changeset
|
979 cstack->cs_script_var_len[cstack->cs_idx] = si->sn_var_vals.ga_len; |
|
22596
107eae953b87
patch 8.2.1846: Vim9: block variables are not found in compiled function
Bram Moolenaar <Bram@vim.org>
parents:
22594
diff
changeset
|
980 cstack->cs_block_id[cstack->cs_idx] = ++si->sn_last_block_id; |
|
107eae953b87
patch 8.2.1846: Vim9: block variables are not found in compiled function
Bram Moolenaar <Bram@vim.org>
parents:
22594
diff
changeset
|
981 si->sn_current_block_id = si->sn_last_block_id; |
|
22594
209c7aa56325
patch 8.2.1845: Vim9: function defined in a block can't use block variables
Bram Moolenaar <Bram@vim.org>
parents:
22555
diff
changeset
|
982 } |
|
23752
7425d3e5804e
patch 8.2.2417: condition stack values may be used when not set
Bram Moolenaar <Bram@vim.org>
parents:
23493
diff
changeset
|
983 else |
|
7425d3e5804e
patch 8.2.2417: condition stack values may be used when not set
Bram Moolenaar <Bram@vim.org>
parents:
23493
diff
changeset
|
984 { |
|
7425d3e5804e
patch 8.2.2417: condition stack values may be used when not set
Bram Moolenaar <Bram@vim.org>
parents:
23493
diff
changeset
|
985 // Just in case in_vim9script() does not return the same value when the |
|
7425d3e5804e
patch 8.2.2417: condition stack values may be used when not set
Bram Moolenaar <Bram@vim.org>
parents:
23493
diff
changeset
|
986 // block ends. |
|
7425d3e5804e
patch 8.2.2417: condition stack values may be used when not set
Bram Moolenaar <Bram@vim.org>
parents:
23493
diff
changeset
|
987 cstack->cs_script_var_len[cstack->cs_idx] = 0; |
|
7425d3e5804e
patch 8.2.2417: condition stack values may be used when not set
Bram Moolenaar <Bram@vim.org>
parents:
23493
diff
changeset
|
988 cstack->cs_block_id[cstack->cs_idx] = 0; |
|
7425d3e5804e
patch 8.2.2417: condition stack values may be used when not set
Bram Moolenaar <Bram@vim.org>
parents:
23493
diff
changeset
|
989 } |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
990 } |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
991 |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
992 static void |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
993 leave_block(cstack_T *cstack) |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
994 { |
|
22594
209c7aa56325
patch 8.2.1845: Vim9: function defined in a block can't use block variables
Bram Moolenaar <Bram@vim.org>
parents:
22555
diff
changeset
|
995 if (in_vim9script() && SCRIPT_ID_VALID(current_sctx.sc_sid)) |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
996 { |
|
22553
3ed3bed38e0f
patch 8.2.1825: Vim9: accessing freed memory
Bram Moolenaar <Bram@vim.org>
parents:
22551
diff
changeset
|
997 scriptitem_T *si = SCRIPT_ITEM(current_sctx.sc_sid); |
|
22594
209c7aa56325
patch 8.2.1845: Vim9: function defined in a block can't use block variables
Bram Moolenaar <Bram@vim.org>
parents:
22555
diff
changeset
|
998 int i; |
|
22643
71b57779177d
patch 8.2.1870: Vim9: no need to keep all script variables
Bram Moolenaar <Bram@vim.org>
parents:
22596
diff
changeset
|
999 int func_defined = |
|
71b57779177d
patch 8.2.1870: Vim9: no need to keep all script variables
Bram Moolenaar <Bram@vim.org>
parents:
22596
diff
changeset
|
1000 cstack->cs_flags[cstack->cs_idx] & CSF_FUNC_DEF; |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1001 |
|
22594
209c7aa56325
patch 8.2.1845: Vim9: function defined in a block can't use block variables
Bram Moolenaar <Bram@vim.org>
parents:
22555
diff
changeset
|
1002 for (i = cstack->cs_script_var_len[cstack->cs_idx]; |
|
209c7aa56325
patch 8.2.1845: Vim9: function defined in a block can't use block variables
Bram Moolenaar <Bram@vim.org>
parents:
22555
diff
changeset
|
1003 i < si->sn_var_vals.ga_len; ++i) |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1004 { |
|
22594
209c7aa56325
patch 8.2.1845: Vim9: function defined in a block can't use block variables
Bram Moolenaar <Bram@vim.org>
parents:
22555
diff
changeset
|
1005 svar_T *sv = ((svar_T *)si->sn_var_vals.ga_data) + i; |
|
22553
3ed3bed38e0f
patch 8.2.1825: Vim9: accessing freed memory
Bram Moolenaar <Bram@vim.org>
parents:
22551
diff
changeset
|
1006 |
|
22643
71b57779177d
patch 8.2.1870: Vim9: no need to keep all script variables
Bram Moolenaar <Bram@vim.org>
parents:
22596
diff
changeset
|
1007 // sv_name is set to NULL if it was already removed. This happens |
|
71b57779177d
patch 8.2.1870: Vim9: no need to keep all script variables
Bram Moolenaar <Bram@vim.org>
parents:
22596
diff
changeset
|
1008 // when it was defined in an inner block and no functions were |
|
71b57779177d
patch 8.2.1870: Vim9: no need to keep all script variables
Bram Moolenaar <Bram@vim.org>
parents:
22596
diff
changeset
|
1009 // defined there. |
|
22594
209c7aa56325
patch 8.2.1845: Vim9: function defined in a block can't use block variables
Bram Moolenaar <Bram@vim.org>
parents:
22555
diff
changeset
|
1010 if (sv->sv_name != NULL) |
|
209c7aa56325
patch 8.2.1845: Vim9: function defined in a block can't use block variables
Bram Moolenaar <Bram@vim.org>
parents:
22555
diff
changeset
|
1011 // Remove a variable declared inside the block, if it still |
|
22643
71b57779177d
patch 8.2.1870: Vim9: no need to keep all script variables
Bram Moolenaar <Bram@vim.org>
parents:
22596
diff
changeset
|
1012 // exists, from sn_vars and move the value into sn_all_vars |
|
71b57779177d
patch 8.2.1870: Vim9: no need to keep all script variables
Bram Moolenaar <Bram@vim.org>
parents:
22596
diff
changeset
|
1013 // if "func_defined" is non-zero. |
|
71b57779177d
patch 8.2.1870: Vim9: no need to keep all script variables
Bram Moolenaar <Bram@vim.org>
parents:
22596
diff
changeset
|
1014 hide_script_var(si, i, func_defined); |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1015 } |
|
22594
209c7aa56325
patch 8.2.1845: Vim9: function defined in a block can't use block variables
Bram Moolenaar <Bram@vim.org>
parents:
22555
diff
changeset
|
1016 |
|
22596
107eae953b87
patch 8.2.1846: Vim9: block variables are not found in compiled function
Bram Moolenaar <Bram@vim.org>
parents:
22594
diff
changeset
|
1017 if (cstack->cs_idx == 0) |
|
107eae953b87
patch 8.2.1846: Vim9: block variables are not found in compiled function
Bram Moolenaar <Bram@vim.org>
parents:
22594
diff
changeset
|
1018 si->sn_current_block_id = 0; |
|
107eae953b87
patch 8.2.1846: Vim9: block variables are not found in compiled function
Bram Moolenaar <Bram@vim.org>
parents:
22594
diff
changeset
|
1019 else |
|
107eae953b87
patch 8.2.1846: Vim9: block variables are not found in compiled function
Bram Moolenaar <Bram@vim.org>
parents:
22594
diff
changeset
|
1020 si->sn_current_block_id = cstack->cs_block_id[cstack->cs_idx - 1]; |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1021 } |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
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parents:
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diff
changeset
|
1022 --cstack->cs_idx; |
|
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patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1023 } |
|
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1024 |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
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parents:
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diff
changeset
|
1025 /* |
| 7 | 1026 * ":if". |
| 1027 */ | |
| 1028 void | |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1029 ex_if(exarg_T *eap) |
| 7 | 1030 { |
| 1031 int error; | |
| 1032 int skip; | |
| 1033 int result; | |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
1034 cstack_T *cstack = eap->cstack; |
| 7 | 1035 |
| 1036 if (cstack->cs_idx == CSTACK_LEN - 1) | |
|
26917
d91aea2a612c
patch 8.2.3987: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26887
diff
changeset
|
1037 eap->errmsg = _(e_if_nesting_too_deep); |
| 7 | 1038 else |
| 1039 { | |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1040 enter_block(cstack); |
| 7 | 1041 cstack->cs_flags[cstack->cs_idx] = 0; |
| 1042 | |
| 1043 /* | |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1044 * Don't do something after an error, interrupt, or throw, or when |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1045 * there is a surrounding conditional and it was not active. |
| 7 | 1046 */ |
| 1047 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0 | |
| 1048 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE)); | |
| 1049 | |
|
30598
37aa9fd2ed72
patch 9.0.0634: evaluating "expr" options has more overhead than needed
Bram Moolenaar <Bram@vim.org>
parents:
30483
diff
changeset
|
1050 result = eval_to_bool(eap->arg, &error, eap, skip, FALSE); |
| 7 | 1051 |
| 1052 if (!skip && !error) | |
| 1053 { | |
| 1054 if (result) | |
| 1055 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE | CSF_TRUE; | |
| 1056 } | |
| 1057 else | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1058 // set TRUE, so this conditional will never get active |
| 7 | 1059 cstack->cs_flags[cstack->cs_idx] = CSF_TRUE; |
| 1060 } | |
| 1061 } | |
| 1062 | |
| 1063 /* | |
| 1064 * ":endif". | |
| 1065 */ | |
| 1066 void | |
|
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commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1067 ex_endif(exarg_T *eap) |
| 7 | 1068 { |
|
22551
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patch 8.2.1824: Vim9: variables at the script level escape their scope
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parents:
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changeset
|
1069 cstack_T *cstack = eap->cstack; |
|
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parents:
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changeset
|
1070 |
|
25575
9f691e8a74e3
patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
Bram Moolenaar <Bram@vim.org>
parents:
25537
diff
changeset
|
1071 if (cmdmod_error(FALSE)) |
|
24222
a2e6029d354e
patch 8.2.2652: Vim9: can use command modifier without an effect
Bram Moolenaar <Bram@vim.org>
parents:
24022
diff
changeset
|
1072 return; |
| 7 | 1073 did_endif = TRUE; |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
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parents:
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diff
changeset
|
1074 if (cstack->cs_idx < 0 |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
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parents:
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diff
changeset
|
1075 || (cstack->cs_flags[cstack->cs_idx] |
|
22555
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1076 & (CSF_WHILE | CSF_FOR | CSF_TRY | CSF_BLOCK))) |
|
21459
a422bd80b434
patch 8.2.1280: Ex command error cannot contain an argument
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1077 eap->errmsg = _(e_endif_without_if); |
| 7 | 1078 else |
| 1079 { | |
| 1080 /* | |
| 1081 * When debugging or a breakpoint was encountered, display the debug | |
| 1082 * prompt (if not already done). This shows the user that an ":endif" | |
| 1083 * is executed when the ":if" or a previous ":elseif" was not TRUE. | |
| 1084 * Handle a ">quit" debug command as if an interrupt had occurred before | |
| 1085 * the ":endif". That is, throw an interrupt exception if appropriate. | |
| 1086 * Doing this here prevents an exception for a parsing error being | |
| 1087 * discarded by throwing the interrupt exception later on. | |
| 1088 */ | |
|
22551
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parents:
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diff
changeset
|
1089 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRUE) |
| 359 | 1090 && dbg_check_skipped(eap)) |
|
22551
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patch 8.2.1824: Vim9: variables at the script level escape their scope
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parents:
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diff
changeset
|
1091 (void)do_intthrow(cstack); |
| 7 | 1092 |
|
22551
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patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
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changeset
|
1093 leave_block(cstack); |
| 7 | 1094 } |
| 1095 } | |
| 1096 | |
| 1097 /* | |
| 1098 * ":else" and ":elseif". | |
| 1099 */ | |
| 1100 void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1101 ex_else(exarg_T *eap) |
| 7 | 1102 { |
| 1103 int error; | |
| 1104 int skip; | |
| 1105 int result; | |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
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parents:
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diff
changeset
|
1106 cstack_T *cstack = eap->cstack; |
| 7 | 1107 |
| 1108 /* | |
| 1109 * Don't do something after an error, interrupt, or throw, or when there is | |
| 1110 * a surrounding conditional and it was not active. | |
| 1111 */ | |
| 1112 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0 | |
| 1113 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE)); | |
| 1114 | |
| 1115 if (cstack->cs_idx < 0 | |
| 75 | 1116 || (cstack->cs_flags[cstack->cs_idx] |
|
22555
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1117 & (CSF_WHILE | CSF_FOR | CSF_TRY | CSF_BLOCK))) |
| 7 | 1118 { |
| 1119 if (eap->cmdidx == CMD_else) | |
| 1120 { | |
|
21459
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parents:
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changeset
|
1121 eap->errmsg = _(e_else_without_if); |
| 7 | 1122 return; |
| 1123 } | |
|
21459
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patch 8.2.1280: Ex command error cannot contain an argument
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changeset
|
1124 eap->errmsg = _(e_elseif_without_if); |
| 7 | 1125 skip = TRUE; |
| 1126 } | |
| 1127 else if (cstack->cs_flags[cstack->cs_idx] & CSF_ELSE) | |
| 1128 { | |
| 1129 if (eap->cmdidx == CMD_else) | |
| 1130 { | |
|
26917
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changeset
|
1131 eap->errmsg = _(e_multiple_else); |
| 7 | 1132 return; |
| 1133 } | |
|
26917
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patch 8.2.3987: error messages are spread out
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diff
changeset
|
1134 eap->errmsg = _(e_elseif_after_else); |
| 7 | 1135 skip = TRUE; |
| 1136 } | |
| 1137 | |
|
28712
d59c8dc8be20
patch 8.2.4880: Vim9: misplaced elseif causes invalid memory access
Bram Moolenaar <Bram@vim.org>
parents:
28698
diff
changeset
|
1138 if (cstack->cs_idx >= 0) |
|
d59c8dc8be20
patch 8.2.4880: Vim9: misplaced elseif causes invalid memory access
Bram Moolenaar <Bram@vim.org>
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changeset
|
1139 { |
|
d59c8dc8be20
patch 8.2.4880: Vim9: misplaced elseif causes invalid memory access
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parents:
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diff
changeset
|
1140 // Variables declared in the previous block can no longer be |
|
d59c8dc8be20
patch 8.2.4880: Vim9: misplaced elseif causes invalid memory access
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1141 // used. Needs to be done before setting "cs_flags". |
|
d59c8dc8be20
patch 8.2.4880: Vim9: misplaced elseif causes invalid memory access
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1142 leave_block(cstack); |
|
d59c8dc8be20
patch 8.2.4880: Vim9: misplaced elseif causes invalid memory access
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1143 enter_block(cstack); |
|
d59c8dc8be20
patch 8.2.4880: Vim9: misplaced elseif causes invalid memory access
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1144 } |
|
28698
096a5f9a03a8
patch 8.2.4873: Vim9: using "else" differs from using "endif/if !cond"
Bram Moolenaar <Bram@vim.org>
parents:
28696
diff
changeset
|
1145 |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1146 // if skipping or the ":if" was TRUE, reset ACTIVE, otherwise set it |
| 7 | 1147 if (skip || cstack->cs_flags[cstack->cs_idx] & CSF_TRUE) |
| 1148 { | |
| 1149 if (eap->errmsg == NULL) | |
| 1150 cstack->cs_flags[cstack->cs_idx] = CSF_TRUE; | |
|
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patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
1151 skip = TRUE; // don't evaluate an ":elseif" |
| 7 | 1152 } |
| 1153 else | |
| 1154 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE; | |
| 1155 | |
| 1156 /* | |
| 1157 * When debugging or a breakpoint was encountered, display the debug prompt | |
| 1158 * (if not already done). This shows the user that an ":else" or ":elseif" | |
| 1159 * is executed when the ":if" or previous ":elseif" was not TRUE. Handle | |
| 1160 * a ">quit" debug command as if an interrupt had occurred before the | |
| 1161 * ":else" or ":elseif". That is, set "skip" and throw an interrupt | |
| 1162 * exception if appropriate. Doing this here prevents that an exception | |
| 1163 * for a parsing errors is discarded when throwing the interrupt exception | |
| 1164 * later on. | |
| 1165 */ | |
| 1166 if (!skip && dbg_check_skipped(eap) && got_int) | |
| 1167 { | |
| 1168 (void)do_intthrow(cstack); | |
| 1169 skip = TRUE; | |
| 1170 } | |
| 1171 | |
| 1172 if (eap->cmdidx == CMD_elseif) | |
| 1173 { | |
|
28299
fae7d94220e3
patch 8.2.4675: no error for missing expression after :elseif
Bram Moolenaar <Bram@vim.org>
parents:
27948
diff
changeset
|
1174 // When skipping we ignore most errors, but a missing expression is |
|
fae7d94220e3
patch 8.2.4675: no error for missing expression after :elseif
Bram Moolenaar <Bram@vim.org>
parents:
27948
diff
changeset
|
1175 // wrong, perhaps it should have been "else". |
|
31069
39698292a849
patch 9.0.0869: bogus error when string used after :elseif
Bram Moolenaar <Bram@vim.org>
parents:
30598
diff
changeset
|
1176 // A double quote here is the start of a string, not a comment. |
|
39698292a849
patch 9.0.0869: bogus error when string used after :elseif
Bram Moolenaar <Bram@vim.org>
parents:
30598
diff
changeset
|
1177 if (skip && *eap->arg != '"' && ends_excmd(*eap->arg)) |
|
28299
fae7d94220e3
patch 8.2.4675: no error for missing expression after :elseif
Bram Moolenaar <Bram@vim.org>
parents:
27948
diff
changeset
|
1178 semsg(_(e_invalid_expression_str), eap->arg); |
|
fae7d94220e3
patch 8.2.4675: no error for missing expression after :elseif
Bram Moolenaar <Bram@vim.org>
parents:
27948
diff
changeset
|
1179 else |
|
30598
37aa9fd2ed72
patch 9.0.0634: evaluating "expr" options has more overhead than needed
Bram Moolenaar <Bram@vim.org>
parents:
30483
diff
changeset
|
1180 result = eval_to_bool(eap->arg, &error, eap, skip, FALSE); |
|
20113
2c23053c654a
patch 8.2.0612: Vim9: no check for space before #comment
Bram Moolenaar <Bram@vim.org>
parents:
20029
diff
changeset
|
1181 |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
18699
diff
changeset
|
1182 // When throwing error exceptions, we want to throw always the first |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1183 // of several errors in a row. This is what actually happens when |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1184 // a conditional error was detected above and there is another failure |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
18699
diff
changeset
|
1185 // when parsing the expression. Since the skip flag is set in this |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1186 // case, the parsing error will be ignored by emsg(). |
| 7 | 1187 if (!skip && !error) |
| 1188 { | |
| 1189 if (result) | |
| 1190 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE | CSF_TRUE; | |
| 1191 else | |
| 1192 cstack->cs_flags[cstack->cs_idx] = 0; | |
| 1193 } | |
| 1194 else if (eap->errmsg == NULL) | |
|
18779
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patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
1195 // set TRUE, so this conditional will never get active |
| 7 | 1196 cstack->cs_flags[cstack->cs_idx] = CSF_TRUE; |
| 1197 } | |
| 1198 else | |
| 1199 cstack->cs_flags[cstack->cs_idx] |= CSF_ELSE; | |
| 1200 } | |
| 1201 | |
| 1202 /* | |
| 75 | 1203 * Handle ":while" and ":for". |
| 7 | 1204 */ |
| 1205 void | |
|
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commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1206 ex_while(exarg_T *eap) |
| 7 | 1207 { |
| 1208 int error; | |
| 1209 int skip; | |
| 1210 int result; | |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
1211 cstack_T *cstack = eap->cstack; |
|
30249
c0f0118b6790
patch 9.0.0460: loop variable can't be found
Bram Moolenaar <Bram@vim.org>
parents:
30247
diff
changeset
|
1212 int prev_cs_flags = 0; |
| 7 | 1213 |
| 1214 if (cstack->cs_idx == CSTACK_LEN - 1) | |
|
26917
d91aea2a612c
patch 8.2.3987: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26887
diff
changeset
|
1215 eap->errmsg = _(e_while_for_nesting_too_deep); |
| 7 | 1216 else |
| 1217 { | |
| 1218 /* | |
| 75 | 1219 * The loop flag is set when we have jumped back from the matching |
| 1220 * ":endwhile" or ":endfor". When not set, need to initialise this | |
| 1221 * cstack entry. | |
| 7 | 1222 */ |
| 75 | 1223 if ((cstack->cs_lflags & CSL_HAD_LOOP) == 0) |
| 7 | 1224 { |
|
22551
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patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1225 enter_block(cstack); |
| 75 | 1226 ++cstack->cs_looplevel; |
| 7 | 1227 cstack->cs_line[cstack->cs_idx] = -1; |
| 1228 } | |
|
24232
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1229 else |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1230 { |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1231 if (in_vim9script() && SCRIPT_ID_VALID(current_sctx.sc_sid)) |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1232 { |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1233 scriptitem_T *si = SCRIPT_ITEM(current_sctx.sc_sid); |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1234 int i; |
|
30247
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
parents:
30071
diff
changeset
|
1235 int first; |
|
25358
f03271631eb5
patch 8.2.3216: Vim9: crash when using variable in a loop at script level
Bram Moolenaar <Bram@vim.org>
parents:
25306
diff
changeset
|
1236 int func_defined = cstack->cs_flags[cstack->cs_idx] |
|
f03271631eb5
patch 8.2.3216: Vim9: crash when using variable in a loop at script level
Bram Moolenaar <Bram@vim.org>
parents:
25306
diff
changeset
|
1237 & CSF_FUNC_DEF; |
|
24232
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
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|
1238 |
|
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patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1239 // Any variables defined in the previous round are no longer |
|
26236
9e6ddd7b91cd
patch 8.2.3649: Vim9: error for variable declared in while loop
Bram Moolenaar <Bram@vim.org>
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26228
diff
changeset
|
1240 // visible. Keep the first one for ":for", it is the loop |
|
9e6ddd7b91cd
patch 8.2.3649: Vim9: error for variable declared in while loop
Bram Moolenaar <Bram@vim.org>
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26228
diff
changeset
|
1241 // variable that we reuse every time around. |
|
30247
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
parents:
30071
diff
changeset
|
1242 // Do this backwards, so that vars defined in a later round are |
|
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1243 // found first. |
|
30399
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
Bram Moolenaar <Bram@vim.org>
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30249
diff
changeset
|
1244 first = cstack->cs_script_var_len[cstack->cs_idx]; |
|
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
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diff
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|
1245 if (eap->cmdidx == CMD_for) |
|
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diff
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|
1246 { |
|
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
Bram Moolenaar <Bram@vim.org>
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30249
diff
changeset
|
1247 forinfo_T *fi = cstack->cs_forinfo[cstack->cs_idx]; |
|
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
Bram Moolenaar <Bram@vim.org>
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30249
diff
changeset
|
1248 |
|
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
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diff
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|
1249 first += fi == NULL || fi->fi_varcount == 0 |
|
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
Bram Moolenaar <Bram@vim.org>
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diff
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|
1250 ? 1 : fi->fi_varcount; |
|
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
Bram Moolenaar <Bram@vim.org>
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30249
diff
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|
1251 } |
|
30247
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1252 for (i = si->sn_var_vals.ga_len - 1; i >= first; --i) |
|
24232
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1253 { |
|
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patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
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diff
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|
1254 svar_T *sv = ((svar_T *)si->sn_var_vals.ga_data) + i; |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
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24222
diff
changeset
|
1255 |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1256 // sv_name is set to NULL if it was already removed. This |
|
3058ed6db36f
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Bram Moolenaar <Bram@vim.org>
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24222
diff
changeset
|
1257 // happens when it was defined in an inner block and no |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1258 // functions were defined there. |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
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24222
diff
changeset
|
1259 if (sv->sv_name != NULL) |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
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24222
diff
changeset
|
1260 // Remove a variable declared inside the block, if it |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1261 // still exists, from sn_vars. |
|
25358
f03271631eb5
patch 8.2.3216: Vim9: crash when using variable in a loop at script level
Bram Moolenaar <Bram@vim.org>
parents:
25306
diff
changeset
|
1262 hide_script_var(si, i, func_defined); |
|
24232
3058ed6db36f
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Bram Moolenaar <Bram@vim.org>
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|
1263 } |
|
30247
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1264 |
|
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
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30071
diff
changeset
|
1265 // Start a new block ID, so that variables defined inside the |
|
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1266 // loop are created new and not shared with the previous loop. |
|
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1267 // Matters when used in a closure. |
|
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1268 cstack->cs_block_id[cstack->cs_idx] = ++si->sn_last_block_id; |
|
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1269 si->sn_current_block_id = si->sn_last_block_id; |
|
24232
3058ed6db36f
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1270 } |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1271 } |
|
30249
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patch 9.0.0460: loop variable can't be found
Bram Moolenaar <Bram@vim.org>
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30247
diff
changeset
|
1272 prev_cs_flags = cstack->cs_flags[cstack->cs_idx]; |
| 75 | 1273 cstack->cs_flags[cstack->cs_idx] = |
| 1274 eap->cmdidx == CMD_while ? CSF_WHILE : CSF_FOR; | |
| 7 | 1275 |
| 1276 /* | |
| 75 | 1277 * Don't do something after an error, interrupt, or throw, or when |
| 1278 * there is a surrounding conditional and it was not active. | |
| 7 | 1279 */ |
| 1280 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0 | |
| 1281 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE)); | |
| 75 | 1282 if (eap->cmdidx == CMD_while) |
| 1283 { | |
| 1284 /* | |
| 1285 * ":while bool-expr" | |
| 1286 */ | |
|
30598
37aa9fd2ed72
patch 9.0.0634: evaluating "expr" options has more overhead than needed
Bram Moolenaar <Bram@vim.org>
parents:
30483
diff
changeset
|
1287 result = eval_to_bool(eap->arg, &error, eap, skip, FALSE); |
| 75 | 1288 } |
| 1289 else | |
| 1290 { | |
|
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diff
changeset
|
1291 forinfo_T *fi; |
|
21058
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
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21040
diff
changeset
|
1292 evalarg_T evalarg; |
|
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
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|
1293 |
|
24232
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|
1294 /* |
|
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|
1295 * ":for var in list-expr" |
|
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patch 8.2.2657: Vim9: error message for declaring variable in for loop
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|
1296 */ |
|
25358
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1297 fill_evalarg_from_eap(&evalarg, eap, skip); |
| 75 | 1298 if ((cstack->cs_lflags & CSL_HAD_LOOP) != 0) |
| 1299 { | |
|
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changeset
|
1300 // Jumping here from a ":continue" or ":endfor": use the |
|
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|
1301 // previously evaluated list. |
| 79 | 1302 fi = cstack->cs_forinfo[cstack->cs_idx]; |
| 75 | 1303 error = FALSE; |
|
21058
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Bram Moolenaar <Bram@vim.org>
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|
1304 |
|
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1305 // the "in expr" is not used, skip over it |
|
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patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1306 skip_for_lines(fi, &evalarg); |
| 75 | 1307 } |
| 1308 else | |
| 1309 { | |
|
25180
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Bram Moolenaar <Bram@vim.org>
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25124
diff
changeset
|
1310 long save_lnum = SOURCING_LNUM; |
|
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diff
changeset
|
1311 |
|
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|
1312 // Evaluate the argument and get the info in a structure. |
|
21058
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1313 fi = eval_for_line(eap->arg, &error, eap, &evalarg); |
| 79 | 1314 cstack->cs_forinfo[cstack->cs_idx] = fi; |
|
25180
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Bram Moolenaar <Bram@vim.org>
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|
1315 |
|
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Bram Moolenaar <Bram@vim.org>
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|
1316 // Errors should use the first line number. |
|
6523cd41fa54
patch 8.2.3126: Vim9: for loop error reports wrong line number
Bram Moolenaar <Bram@vim.org>
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changeset
|
1317 SOURCING_LNUM = save_lnum; |
| 75 | 1318 } |
| 1319 | |
|
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Bram Moolenaar <Bram@vim.org>
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changeset
|
1320 // use the element at the start of the list and advance |
| 75 | 1321 if (!error && fi != NULL && !skip) |
| 1322 result = next_for_item(fi, eap->arg); | |
| 1323 else | |
| 1324 result = FALSE; | |
|
30249
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|
1325 if (fi != NULL) |
|
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changeset
|
1326 // OR all the cs_flags together, if a function was defined in |
|
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changeset
|
1327 // any round then the loop variable may have been used. |
|
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changeset
|
1328 fi->fi_cs_flags |= prev_cs_flags; |
| 75 | 1329 |
| 1330 if (!result) | |
| 1331 { | |
|
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changeset
|
1332 // If a function was defined in any round then set the |
|
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diff
changeset
|
1333 // CSF_FUNC_DEF flag now, so that it's seen by leave_block(). |
|
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changeset
|
1334 if (fi != NULL && (fi->fi_cs_flags & CSF_FUNC_DEF)) |
|
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|
1335 cstack->cs_flags[cstack->cs_idx] |= CSF_FUNC_DEF; |
|
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|
1336 |
| 75 | 1337 free_for_info(fi); |
| 79 | 1338 cstack->cs_forinfo[cstack->cs_idx] = NULL; |
| 75 | 1339 } |
|
21058
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Bram Moolenaar <Bram@vim.org>
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|
1340 clear_evalarg(&evalarg, eap); |
| 75 | 1341 } |
| 7 | 1342 |
| 1343 /* | |
| 75 | 1344 * If this cstack entry was just initialised and is active, set the |
| 1345 * loop flag, so do_cmdline() will set the line number in cs_line[]. | |
| 1346 * If executing the command a second time, clear the loop flag. | |
| 7 | 1347 */ |
| 1348 if (!skip && !error && result) | |
| 1349 { | |
| 75 | 1350 cstack->cs_flags[cstack->cs_idx] |= (CSF_ACTIVE | CSF_TRUE); |
| 1351 cstack->cs_lflags ^= CSL_HAD_LOOP; | |
| 7 | 1352 } |
| 1353 else | |
| 1354 { | |
| 75 | 1355 cstack->cs_lflags &= ~CSL_HAD_LOOP; |
|
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|
1356 // If the ":while" evaluates to FALSE or ":for" is past the end of |
|
8f05b3cf8557
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changeset
|
1357 // the list, show the debug prompt at the ":endwhile"/":endfor" as |
|
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patch 8.1.2379: using old C style comments
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|
1358 // if there was a ":break" in a ":while"/":for" evaluating to |
|
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
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changeset
|
1359 // TRUE. |
| 7 | 1360 if (!skip && !error) |
| 1361 cstack->cs_flags[cstack->cs_idx] |= CSF_TRUE; | |
| 1362 } | |
| 1363 } | |
| 1364 } | |
| 1365 | |
| 1366 /* | |
| 1367 * ":continue" | |
| 1368 */ | |
| 1369 void | |
|
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Christian Brabandt <cb@256bit.org>
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7801
diff
changeset
|
1370 ex_continue(exarg_T *eap) |
| 7 | 1371 { |
| 1372 int idx; | |
|
18904
2bdc2e1f6e1f
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changeset
|
1373 cstack_T *cstack = eap->cstack; |
| 7 | 1374 |
| 75 | 1375 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0) |
|
26887
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patch 8.2.3972: error messages are spread out
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|
1376 eap->errmsg = _(e_continue_without_while_or_for); |
| 7 | 1377 else |
| 1378 { | |
|
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|
1379 // Try to find the matching ":while". This might stop at a try |
|
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changeset
|
1380 // conditional not in its finally clause (which is then to be executed |
|
25202
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patch 8.2.3137: Vim9: no error when a line only has a variable name
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1381 // next). Therefore, inactivate all conditionals except the ":while" |
|
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changeset
|
1382 // itself (if reached). |
| 75 | 1383 idx = cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, FALSE); |
| 840 | 1384 if (idx >= 0 && (cstack->cs_flags[idx] & (CSF_WHILE | CSF_FOR))) |
| 7 | 1385 { |
| 79 | 1386 rewind_conditionals(cstack, idx, CSF_TRY, &cstack->cs_trylevel); |
| 7 | 1387 |
| 1388 /* | |
| 75 | 1389 * Set CSL_HAD_CONT, so do_cmdline() will jump back to the |
| 7 | 1390 * matching ":while". |
| 1391 */ | |
|
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changeset
|
1392 cstack->cs_lflags |= CSL_HAD_CONT; // let do_cmdline() handle it |
| 7 | 1393 } |
| 1394 else | |
| 1395 { | |
|
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changeset
|
1396 // If a try conditional not in its finally clause is reached first, |
|
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changeset
|
1397 // make the ":continue" pending for execution at the ":endtry". |
| 7 | 1398 cstack->cs_pending[idx] = CSTP_CONTINUE; |
| 1399 report_make_pending(CSTP_CONTINUE, NULL); | |
| 1400 } | |
| 1401 } | |
| 1402 } | |
| 1403 | |
| 1404 /* | |
| 1405 * ":break" | |
| 1406 */ | |
| 1407 void | |
|
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Christian Brabandt <cb@256bit.org>
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7801
diff
changeset
|
1408 ex_break(exarg_T *eap) |
| 7 | 1409 { |
| 1410 int idx; | |
|
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changeset
|
1411 cstack_T *cstack = eap->cstack; |
| 7 | 1412 |
| 75 | 1413 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0) |
|
26887
612339679616
patch 8.2.3972: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26883
diff
changeset
|
1414 eap->errmsg = _(e_break_without_while_or_for); |
| 7 | 1415 else |
| 1416 { | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1417 // Inactivate conditionals until the matching ":while" or a try |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1418 // conditional not in its finally clause (which is then to be |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1419 // executed next) is found. In the latter case, make the ":break" |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1420 // pending for execution at the ":endtry". |
| 75 | 1421 idx = cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, TRUE); |
| 840 | 1422 if (idx >= 0 && !(cstack->cs_flags[idx] & (CSF_WHILE | CSF_FOR))) |
| 7 | 1423 { |
| 1424 cstack->cs_pending[idx] = CSTP_BREAK; | |
| 1425 report_make_pending(CSTP_BREAK, NULL); | |
| 1426 } | |
| 1427 } | |
| 1428 } | |
| 1429 | |
| 1430 /* | |
| 75 | 1431 * ":endwhile" and ":endfor" |
| 7 | 1432 */ |
| 1433 void | |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1434 ex_endwhile(exarg_T *eap) |
| 7 | 1435 { |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
1436 cstack_T *cstack = eap->cstack; |
|
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
1437 int idx; |
|
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
1438 char *err; |
|
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
1439 int csf; |
|
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
1440 int fl; |
| 7 | 1441 |
|
25575
9f691e8a74e3
patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
Bram Moolenaar <Bram@vim.org>
parents:
25537
diff
changeset
|
1442 if (cmdmod_error(TRUE)) |
|
24222
a2e6029d354e
patch 8.2.2652: Vim9: can use command modifier without an effect
Bram Moolenaar <Bram@vim.org>
parents:
24022
diff
changeset
|
1443 return; |
|
a2e6029d354e
patch 8.2.2652: Vim9: can use command modifier without an effect
Bram Moolenaar <Bram@vim.org>
parents:
24022
diff
changeset
|
1444 |
| 75 | 1445 if (eap->cmdidx == CMD_endwhile) |
| 1446 { | |
|
26865
bce848ec8b1b
patch 8.2.3961: error messages are spread out
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parents:
26861
diff
changeset
|
1447 err = e_endwhile_without_while; |
| 75 | 1448 csf = CSF_WHILE; |
| 1449 } | |
| 1450 else | |
| 1451 { | |
|
26865
bce848ec8b1b
patch 8.2.3961: error messages are spread out
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parents:
26861
diff
changeset
|
1452 err = e_endfor_without_for; |
| 75 | 1453 csf = CSF_FOR; |
| 1454 } | |
| 1455 | |
| 1456 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0) | |
|
21459
a422bd80b434
patch 8.2.1280: Ex command error cannot contain an argument
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parents:
21118
diff
changeset
|
1457 eap->errmsg = _(err); |
| 7 | 1458 else |
| 1459 { | |
|
25905
892f937358ea
patch 8.2.3486: illegal memory access with invalid sequence of commands
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parents:
25889
diff
changeset
|
1460 fl = cstack->cs_flags[cstack->cs_idx]; |
| 75 | 1461 if (!(fl & csf)) |
| 7 | 1462 { |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
1463 // If we are in a ":while" or ":for" but used the wrong endloop |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
1464 // command, do not rewind to the next enclosing ":for"/":while". |
| 75 | 1465 if (fl & CSF_WHILE) |
|
26952
b34ddbca305c
patch 8.2.4005: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26948
diff
changeset
|
1466 eap->errmsg = _(e_using_endfor_with_while); |
| 75 | 1467 else if (fl & CSF_FOR) |
|
26952
b34ddbca305c
patch 8.2.4005: error messages are spread out
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parents:
26948
diff
changeset
|
1468 eap->errmsg = _(e_using_endwhile_with_for); |
| 114 | 1469 } |
| 1470 if (!(fl & (CSF_WHILE | CSF_FOR))) | |
| 1471 { | |
| 1472 if (!(fl & CSF_TRY)) | |
|
26857
2aeea8611342
patch 8.2.3957: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26250
diff
changeset
|
1473 eap->errmsg = _(e_missing_endif); |
| 75 | 1474 else if (fl & CSF_FINALLY) |
|
26865
bce848ec8b1b
patch 8.2.3961: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26861
diff
changeset
|
1475 eap->errmsg = _(e_missing_endtry); |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
18699
diff
changeset
|
1476 // Try to find the matching ":while" and report what's missing. |
| 7 | 1477 for (idx = cstack->cs_idx; idx > 0; --idx) |
| 1478 { | |
| 75 | 1479 fl = cstack->cs_flags[idx]; |
| 1480 if ((fl & CSF_TRY) && !(fl & CSF_FINALLY)) | |
| 7 | 1481 { |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1482 // Give up at a try conditional not in its finally clause. |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1483 // Ignore the ":endwhile"/":endfor". |
|
21459
a422bd80b434
patch 8.2.1280: Ex command error cannot contain an argument
Bram Moolenaar <Bram@vim.org>
parents:
21118
diff
changeset
|
1484 eap->errmsg = _(err); |
| 7 | 1485 return; |
| 1486 } | |
| 75 | 1487 if (fl & csf) |
| 7 | 1488 break; |
| 1489 } | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
1490 // Cleanup and rewind all contained (and unclosed) conditionals. |
| 75 | 1491 (void)cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, FALSE); |
| 7 | 1492 rewind_conditionals(cstack, idx, CSF_TRY, &cstack->cs_trylevel); |
| 1493 } | |
| 1494 | |
| 1495 /* | |
| 1496 * When debugging or a breakpoint was encountered, display the debug | |
| 1497 * prompt (if not already done). This shows the user that an | |
| 75 | 1498 * ":endwhile"/":endfor" is executed when the ":while" was not TRUE or |
| 1499 * after a ":break". Handle a ">quit" debug command as if an | |
| 1500 * interrupt had occurred before the ":endwhile"/":endfor". That is, | |
| 1501 * throw an interrupt exception if appropriate. Doing this here | |
| 1502 * prevents that an exception for a parsing error is discarded when | |
| 1503 * throwing the interrupt exception later on. | |
| 7 | 1504 */ |
| 1505 else if (cstack->cs_flags[cstack->cs_idx] & CSF_TRUE | |
| 1506 && !(cstack->cs_flags[cstack->cs_idx] & CSF_ACTIVE) | |
| 1507 && dbg_check_skipped(eap)) | |
| 1508 (void)do_intthrow(cstack); | |
| 1509 | |
|
24232
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1510 // Set loop flag, so do_cmdline() will jump back to the matching |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1511 // ":while" or ":for". |
| 75 | 1512 cstack->cs_lflags |= CSL_HAD_ENDLOOP; |
| 7 | 1513 } |
| 1514 } | |
| 1515 | |
|
22555
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1516 /* |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1517 * "{" start of a block in Vim9 script |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1518 */ |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1519 void |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1520 ex_block(exarg_T *eap) |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1521 { |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1522 cstack_T *cstack = eap->cstack; |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1523 |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1524 if (cstack->cs_idx == CSTACK_LEN - 1) |
|
26917
d91aea2a612c
patch 8.2.3987: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26887
diff
changeset
|
1525 eap->errmsg = _(e_block_nesting_too_deep); |
|
22555
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1526 else |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1527 { |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1528 enter_block(cstack); |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1529 cstack->cs_flags[cstack->cs_idx] = CSF_BLOCK | CSF_ACTIVE | CSF_TRUE; |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1530 } |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1531 } |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1532 |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1533 /* |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1534 * "}" end of a block in Vim9 script |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1535 */ |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1536 void |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1537 ex_endblock(exarg_T *eap) |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1538 { |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1539 cstack_T *cstack = eap->cstack; |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1540 |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1541 if (cstack->cs_idx < 0 |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1542 || (cstack->cs_flags[cstack->cs_idx] & CSF_BLOCK) == 0) |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1543 eap->errmsg = _(e_endblock_without_block); |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1544 else |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1545 leave_block(cstack); |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1546 } |
| 7 | 1547 |
|
25521
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
parents:
25358
diff
changeset
|
1548 int |
|
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
parents:
25358
diff
changeset
|
1549 inside_block(exarg_T *eap) |
|
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
parents:
25358
diff
changeset
|
1550 { |
|
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
parents:
25358
diff
changeset
|
1551 cstack_T *cstack = eap->cstack; |
|
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
parents:
25358
diff
changeset
|
1552 int i; |
|
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
parents:
25358
diff
changeset
|
1553 |
|
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
parents:
25358
diff
changeset
|
1554 for (i = 0; i <= cstack->cs_idx; ++i) |
|
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
parents:
25358
diff
changeset
|
1555 if (cstack->cs_flags[cstack->cs_idx] & CSF_BLOCK) |
|
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
parents:
25358
diff
changeset
|
1556 return TRUE; |
|
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
parents:
25358
diff
changeset
|
1557 return FALSE; |
|
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
parents:
25358
diff
changeset
|
1558 } |
|
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
parents:
25358
diff
changeset
|
1559 |
| 7 | 1560 /* |
| 1561 * ":throw expr" | |
| 1562 */ | |
| 1563 void | |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1564 ex_throw(exarg_T *eap) |
| 7 | 1565 { |
| 1566 char_u *arg = eap->arg; | |
| 1567 char_u *value; | |
| 1568 | |
| 1569 if (*arg != NUL && *arg != '|' && *arg != '\n') | |
|
20996
3af71cbcfdbe
patch 8.2.1049: Vim9: leaking memory when using continuation line
Bram Moolenaar <Bram@vim.org>
parents:
20992
diff
changeset
|
1570 value = eval_to_string_skip(arg, eap, eap->skip); |
| 7 | 1571 else |
| 1572 { | |
|
26865
bce848ec8b1b
patch 8.2.3961: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26861
diff
changeset
|
1573 emsg(_(e_argument_required)); |
| 7 | 1574 value = NULL; |
| 1575 } | |
| 1576 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1577 // On error or when an exception is thrown during argument evaluation, do |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1578 // not throw. |
| 7 | 1579 if (!eap->skip && value != NULL) |
| 1580 { | |
| 1581 if (throw_exception(value, ET_USER, NULL) == FAIL) | |
| 1582 vim_free(value); | |
| 1583 else | |
| 1584 do_throw(eap->cstack); | |
| 1585 } | |
| 1586 } | |
| 1587 | |
| 1588 /* | |
| 21 | 1589 * Throw the current exception through the specified cstack. Common routine |
| 1590 * for ":throw" (user exception) and error and interrupt exceptions. Also | |
| 1591 * used for rethrowing an uncaught exception. | |
| 7 | 1592 */ |
| 1593 void | |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
1594 do_throw(cstack_T *cstack) |
| 7 | 1595 { |
| 1596 int idx; | |
| 1597 int inactivate_try = FALSE; | |
| 1598 | |
| 1599 /* | |
| 1600 * Cleanup and inactivate up to the next surrounding try conditional that | |
| 1601 * is not in its finally clause. Normally, do not inactivate the try | |
| 1602 * conditional itself, so that its ACTIVE flag can be tested below. But | |
| 1603 * if a previous error or interrupt has not been converted to an exception, | |
| 1604 * inactivate the try conditional, too, as if the conversion had been done, | |
| 21 | 1605 * and reset the did_emsg or got_int flag, so this won't happen again at |
| 1606 * the next surrounding try conditional. | |
| 7 | 1607 */ |
| 1880 | 1608 #ifndef THROW_ON_ERROR_TRUE |
| 7 | 1609 if (did_emsg && !THROW_ON_ERROR) |
| 1610 { | |
| 1611 inactivate_try = TRUE; | |
| 1612 did_emsg = FALSE; | |
| 1613 } | |
| 1880 | 1614 #endif |
| 1615 #ifndef THROW_ON_INTERRUPT_TRUE | |
| 7 | 1616 if (got_int && !THROW_ON_INTERRUPT) |
| 1617 { | |
| 1618 inactivate_try = TRUE; | |
| 1619 got_int = FALSE; | |
| 1620 } | |
| 1880 | 1621 #endif |
| 7 | 1622 idx = cleanup_conditionals(cstack, 0, inactivate_try); |
| 1623 if (idx >= 0) | |
| 1624 { | |
| 1625 /* | |
| 1626 * If this try conditional is active and we are before its first | |
| 21 | 1627 * ":catch", set THROWN so that the ":catch" commands will check |
| 1628 * whether the exception matches. When the exception came from any of | |
| 1629 * the catch clauses, it will be made pending at the ":finally" (if | |
| 1630 * present) and rethrown at the ":endtry". This will also happen if | |
| 1631 * the try conditional is inactive. This is the case when we are | |
| 1632 * throwing an exception due to an error or interrupt on the way from | |
| 1633 * a preceding ":continue", ":break", ":return", ":finish", error or | |
| 1634 * interrupt (not converted to an exception) to the finally clause or | |
| 1635 * from a preceding throw of a user or error or interrupt exception to | |
| 1636 * the matching catch clause or the finally clause. | |
| 7 | 1637 */ |
| 1638 if (!(cstack->cs_flags[idx] & CSF_CAUGHT)) | |
| 1639 { | |
| 1640 if (cstack->cs_flags[idx] & CSF_ACTIVE) | |
| 1641 cstack->cs_flags[idx] |= CSF_THROWN; | |
| 1642 else | |
|
18779
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diff
changeset
|
1643 // THROWN may have already been set for a catchable exception |
|
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parents:
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|
1644 // that has been discarded. Ensure it is reset for the new |
|
8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
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changeset
|
1645 // exception. |
| 7 | 1646 cstack->cs_flags[idx] &= ~CSF_THROWN; |
| 1647 } | |
| 1648 cstack->cs_flags[idx] &= ~CSF_ACTIVE; | |
| 1649 cstack->cs_exception[idx] = current_exception; | |
| 1650 } | |
| 1651 #if 0 | |
|
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|
1652 // TODO: Add optimization below. Not yet done because of interface |
|
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diff
changeset
|
1653 // problems to eval.c and ex_cmds2.c. (Servatius) |
| 7 | 1654 else |
| 1655 { | |
| 1656 /* | |
| 1657 * There are no catch clauses to check or finally clauses to execute. | |
| 1658 * End the current script or function. The exception will be rethrown | |
| 1659 * in the caller. | |
| 1660 */ | |
| 1661 if (getline_equal(eap->getline, eap->cookie, get_func_line)) | |
| 1662 current_funccal->returned = TRUE; | |
| 1663 elseif (eap->get_func_line == getsourceline) | |
| 1664 ((struct source_cookie *)eap->cookie)->finished = TRUE; | |
| 1665 } | |
| 1666 #endif | |
| 1667 | |
| 1668 did_throw = TRUE; | |
| 1669 } | |
| 1670 | |
| 1671 /* | |
| 1672 * ":try" | |
| 1673 */ | |
| 1674 void | |
|
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Christian Brabandt <cb@256bit.org>
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7801
diff
changeset
|
1675 ex_try(exarg_T *eap) |
| 7 | 1676 { |
| 1677 int skip; | |
|
18904
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patch 8.2.0013: not using a typedef for condstack
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changeset
|
1678 cstack_T *cstack = eap->cstack; |
| 7 | 1679 |
|
25575
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patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
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changeset
|
1680 if (cmdmod_error(FALSE)) |
|
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|
1681 return; |
|
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|
1682 |
| 7 | 1683 if (cstack->cs_idx == CSTACK_LEN - 1) |
|
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|
1684 eap->errmsg = _(e_try_nesting_too_deep); |
| 7 | 1685 else |
| 1686 { | |
|
22551
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patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1687 enter_block(cstack); |
| 7 | 1688 ++cstack->cs_trylevel; |
| 1689 cstack->cs_flags[cstack->cs_idx] = CSF_TRY; | |
| 1690 cstack->cs_pending[cstack->cs_idx] = CSTP_NONE; | |
| 1691 | |
| 1692 /* | |
| 1693 * Don't do something after an error, interrupt, or throw, or when there | |
| 1694 * is a surrounding conditional and it was not active. | |
| 1695 */ | |
| 1696 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0 | |
| 1697 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE)); | |
| 1698 | |
| 1699 if (!skip) | |
| 1700 { | |
|
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|
1701 // Set ACTIVE and TRUE. TRUE means that the corresponding ":catch" |
|
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changeset
|
1702 // commands should check for a match if an exception is thrown and |
|
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parents:
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diff
changeset
|
1703 // that the finally clause needs to be executed. |
| 7 | 1704 cstack->cs_flags[cstack->cs_idx] |= CSF_ACTIVE | CSF_TRUE; |
| 1705 | |
| 1706 /* | |
| 1707 * ":silent!", even when used in a try conditional, disables | |
| 1708 * displaying of error messages and conversion of errors to | |
| 1709 * exceptions. When the silent commands again open a try | |
| 1710 * conditional, save "emsg_silent" and reset it so that errors are | |
| 1711 * again converted to exceptions. The value is restored when that | |
| 1712 * try conditional is left. If it is left normally, the commands | |
| 1713 * following the ":endtry" are again silent. If it is left by | |
| 1714 * a ":continue", ":break", ":return", or ":finish", the commands | |
| 1715 * executed next are again silent. If it is left due to an | |
| 1716 * aborting error, an interrupt, or an exception, restoring | |
| 1717 * "emsg_silent" does not matter since we are already in the | |
| 1718 * aborting state and/or the exception has already been thrown. | |
| 1719 * The effect is then just freeing the memory that was allocated | |
| 1720 * to save the value. | |
| 1721 */ | |
| 1722 if (emsg_silent) | |
| 1723 { | |
| 1724 eslist_T *elem; | |
| 1725 | |
|
16825
ce04ebdf26b8
patch 8.1.1414: alloc() returning "char_u *" causes a lot of type casts
Bram Moolenaar <Bram@vim.org>
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16764
diff
changeset
|
1726 elem = ALLOC_ONE(struct eslist_elem); |
| 7 | 1727 if (elem == NULL) |
|
25306
078edc1821bf
patch 8.2.3190: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
25202
diff
changeset
|
1728 emsg(_(e_out_of_memory)); |
| 7 | 1729 else |
| 1730 { | |
| 1731 elem->saved_emsg_silent = emsg_silent; | |
| 1732 elem->next = cstack->cs_emsg_silent_list; | |
| 1733 cstack->cs_emsg_silent_list = elem; | |
| 1734 cstack->cs_flags[cstack->cs_idx] |= CSF_SILENT; | |
| 1735 emsg_silent = 0; | |
| 1736 } | |
| 1737 } | |
| 1738 } | |
| 1739 | |
| 1740 } | |
| 1741 } | |
| 1742 | |
| 1743 /* | |
| 1744 * ":catch /{pattern}/" and ":catch" | |
| 1745 */ | |
| 1746 void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1747 ex_catch(exarg_T *eap) |
| 7 | 1748 { |
| 1749 int idx = 0; | |
| 1750 int give_up = FALSE; | |
| 1751 int skip = FALSE; | |
| 1752 int caught = FALSE; | |
| 1753 char_u *end; | |
| 1754 int save_char = 0; | |
| 1755 char_u *save_cpo; | |
| 1756 regmatch_T regmatch; | |
| 1757 int prev_got_int; | |
|
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changeset
|
1758 cstack_T *cstack = eap->cstack; |
| 7 | 1759 char_u *pat; |
| 1760 | |
|
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patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
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|
1761 if (cmdmod_error(FALSE)) |
|
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|
1762 return; |
|
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changeset
|
1763 |
| 7 | 1764 if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0) |
| 1765 { | |
|
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patch 8.2.3961: error messages are spread out
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|
1766 eap->errmsg = _(e_catch_without_try); |
| 7 | 1767 give_up = TRUE; |
| 1768 } | |
| 1769 else | |
| 1770 { | |
| 1771 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) | |
| 1772 { | |
|
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|
1773 // Report what's missing if the matching ":try" is not in its |
|
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|
1774 // finally clause. |
| 75 | 1775 eap->errmsg = get_end_emsg(cstack); |
| 7 | 1776 skip = TRUE; |
| 1777 } | |
| 1778 for (idx = cstack->cs_idx; idx > 0; --idx) | |
| 1779 if (cstack->cs_flags[idx] & CSF_TRY) | |
| 1780 break; | |
|
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patch 8.2.3099: Vim9: missing catch/finally not reported at script level
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changeset
|
1781 if (cstack->cs_flags[idx] & CSF_TRY) |
|
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changeset
|
1782 cstack->cs_flags[idx] |= CSF_CATCH; |
| 7 | 1783 if (cstack->cs_flags[idx] & CSF_FINALLY) |
| 1784 { | |
|
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changeset
|
1785 // Give up for a ":catch" after ":finally" and ignore it. |
|
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|
1786 // Just parse. |
|
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|
1787 eap->errmsg = _(e_catch_after_finally); |
| 7 | 1788 give_up = TRUE; |
| 1789 } | |
| 79 | 1790 else |
| 75 | 1791 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR, |
| 1792 &cstack->cs_looplevel); | |
| 7 | 1793 } |
| 1794 | |
|
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parents:
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diff
changeset
|
1795 if (ends_excmd2(eap->cmd, eap->arg)) // no argument, catch all errors |
| 7 | 1796 { |
| 1797 pat = (char_u *)".*"; | |
| 1798 end = NULL; | |
| 1799 eap->nextcmd = find_nextcmd(eap->arg); | |
| 1800 } | |
| 1801 else | |
| 1802 { | |
| 1803 pat = eap->arg + 1; | |
|
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changeset
|
1804 end = skip_regexp_err(pat, *eap->arg, TRUE); |
|
2c23053c654a
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diff
changeset
|
1805 if (end == NULL) |
|
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diff
changeset
|
1806 give_up = TRUE; |
| 7 | 1807 } |
| 1808 | |
| 1809 if (!give_up) | |
| 1810 { | |
| 1811 /* | |
| 1812 * Don't do something when no exception has been thrown or when the | |
| 1813 * corresponding try block never got active (because of an inactive | |
| 1814 * surrounding conditional or after an error or interrupt or throw). | |
| 1815 */ | |
| 1816 if (!did_throw || !(cstack->cs_flags[idx] & CSF_TRUE)) | |
| 1817 skip = TRUE; | |
| 1818 | |
| 1819 /* | |
| 1820 * Check for a match only if an exception is thrown but not caught by | |
| 1821 * a previous ":catch". An exception that has replaced a discarded | |
| 1822 * exception is not checked (THROWN is not set then). | |
| 1823 */ | |
| 1824 if (!skip && (cstack->cs_flags[idx] & CSF_THROWN) | |
| 1825 && !(cstack->cs_flags[idx] & CSF_CAUGHT)) | |
| 1826 { | |
|
20113
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patch 8.2.0612: Vim9: no check for space before #comment
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parents:
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diff
changeset
|
1827 if (end != NULL && *end != NUL |
|
2c23053c654a
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Bram Moolenaar <Bram@vim.org>
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changeset
|
1828 && !ends_excmd2(end, skipwhite(end + 1))) |
| 7 | 1829 { |
|
26883
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patch 8.2.3970: error messages are spread out
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changeset
|
1830 semsg(_(e_trailing_characters_str), end); |
| 7 | 1831 return; |
| 1832 } | |
| 1833 | |
|
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|
1834 // When debugging or a breakpoint was encountered, display the |
|
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changeset
|
1835 // debug prompt (if not already done) before checking for a match. |
|
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|
1836 // This is a helpful hint for the user when the regular expression |
|
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|
1837 // matching fails. Handle a ">quit" debug command as if an |
|
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changeset
|
1838 // interrupt had occurred before the ":catch". That is, discard |
|
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changeset
|
1839 // the original exception, replace it by an interrupt exception, |
|
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|
1840 // and don't catch it in this try block. |
| 7 | 1841 if (!dbg_check_skipped(eap) || !do_intthrow(cstack)) |
| 1842 { | |
|
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|
1843 // Terminate the pattern and avoid the 'l' flag in 'cpoptions' |
|
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diff
changeset
|
1844 // while compiling it. |
| 7 | 1845 if (end != NULL) |
| 1846 { | |
| 1847 save_char = *end; | |
| 1848 *end = NUL; | |
| 1849 } | |
| 1850 save_cpo = p_cpo; | |
|
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patch 8.2.2289: Vim9: 'cpo' can become empty
Bram Moolenaar <Bram@vim.org>
parents:
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diff
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|
1851 p_cpo = empty_option; |
|
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|
1852 // Disable error messages, it will make current_exception |
|
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|
1853 // invalid. |
|
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
1854 ++emsg_off; |
| 1333 | 1855 regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING); |
|
7973
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Christian Brabandt <cb@256bit.org>
parents:
7819
diff
changeset
|
1856 --emsg_off; |
| 7 | 1857 regmatch.rm_ic = FALSE; |
| 1858 if (end != NULL) | |
| 1859 *end = save_char; | |
| 1860 p_cpo = save_cpo; | |
| 1861 if (regmatch.regprog == NULL) | |
|
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changeset
|
1862 semsg(_(e_invalid_argument_str), pat); |
| 7 | 1863 else |
| 1864 { | |
| 1865 /* | |
| 1866 * Save the value of got_int and reset it. We don't want | |
| 1867 * a previous interruption cancel matching, only hitting | |
| 1868 * CTRL-C while matching should abort it. | |
| 1869 */ | |
| 1870 prev_got_int = got_int; | |
| 1871 got_int = FALSE; | |
|
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diff
changeset
|
1872 caught = vim_regexec_nl(®match, |
|
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1873 (char_u *)current_exception->value, (colnr_T)0); |
| 7 | 1874 got_int |= prev_got_int; |
|
4805
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diff
changeset
|
1875 vim_regfree(regmatch.regprog); |
| 7 | 1876 } |
| 1877 } | |
| 1878 } | |
| 1879 | |
| 1880 if (caught) | |
| 1881 { | |
|
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changeset
|
1882 // Make this ":catch" clause active and reset did_emsg, got_int, |
|
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changeset
|
1883 // and did_throw. Put the exception on the caught stack. |
| 7 | 1884 cstack->cs_flags[idx] |= CSF_ACTIVE | CSF_CAUGHT; |
| 1885 did_emsg = got_int = did_throw = FALSE; | |
| 1886 catch_exception((except_T *)cstack->cs_exception[idx]); | |
|
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patch 8.2.4499: Vim9: at the script level declarations leak to next block
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27426
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1888 if (cstack->cs_idx >= 0 |
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1889 && (cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) |
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1890 { |
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1891 // Variables declared in the previous block can no longer be |
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1892 // used. |
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1893 leave_block(cstack); |
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1894 enter_block(cstack); |
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1895 } |
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1896 |
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1897 // It's mandatory that the current exception is stored in the cstack |
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1898 // so that it can be discarded at the next ":catch", ":finally", or |
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1899 // ":endtry" or when the catch clause is left by a ":continue", |
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1900 // ":break", ":return", ":finish", error, interrupt, or another |
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1901 // exception. |
| 7 | 1902 if (cstack->cs_exception[cstack->cs_idx] != current_exception) |
|
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1903 internal_error("ex_catch()"); |
| 7 | 1904 } |
| 1905 else | |
| 1906 { | |
| 1907 /* | |
| 1908 * If there is a preceding catch clause and it caught the exception, | |
| 1909 * finish the exception now. This happens also after errors except | |
| 1910 * when this ":catch" was after the ":finally" or not within | |
| 1911 * a ":try". Make the try conditional inactive so that the | |
| 1912 * following catch clauses are skipped. On an error or interrupt | |
| 1913 * after the preceding try block or catch clause was left by | |
| 1914 * a ":continue", ":break", ":return", or ":finish", discard the | |
| 1915 * pending action. | |
| 1916 */ | |
| 1917 cleanup_conditionals(cstack, CSF_TRY, TRUE); | |
| 1918 } | |
| 1919 } | |
| 1920 | |
| 1921 if (end != NULL) | |
| 1922 eap->nextcmd = find_nextcmd(end); | |
| 1923 } | |
| 1924 | |
| 1925 /* | |
| 1926 * ":finally" | |
| 1927 */ | |
| 1928 void | |
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1929 ex_finally(exarg_T *eap) |
| 7 | 1930 { |
| 1931 int idx; | |
| 1932 int skip = FALSE; | |
| 1933 int pending = CSTP_NONE; | |
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1934 cstack_T *cstack = eap->cstack; |
| 7 | 1935 |
|
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1936 if (cmdmod_error(FALSE)) |
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1937 return; |
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1938 |
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1939 for (idx = cstack->cs_idx; idx >= 0; --idx) |
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1940 if (cstack->cs_flags[idx] & CSF_TRY) |
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1941 break; |
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1942 if (cstack->cs_trylevel <= 0 || idx < 0) |
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1943 { |
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1944 eap->errmsg = _(e_finally_without_try); |
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1945 return; |
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1946 } |
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1947 |
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1948 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) |
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1949 { |
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1950 eap->errmsg = get_end_emsg(cstack); |
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1951 // Make this error pending, so that the commands in the following |
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1952 // finally clause can be executed. This overrules also a pending |
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1953 // ":continue", ":break", ":return", or ":finish". |
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1954 pending = CSTP_ERROR; |
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1955 } |
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1956 |
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1957 if (cstack->cs_flags[idx] & CSF_FINALLY) |
| 7 | 1958 { |
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1959 // Give up for a multiple ":finally" and ignore it. |
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1960 eap->errmsg = _(e_multiple_finally); |
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1961 return; |
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1962 } |
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1963 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR, |
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1964 &cstack->cs_looplevel); |
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1965 |
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1966 /* |
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1967 * Don't do something when the corresponding try block never got active |
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1968 * (because of an inactive surrounding conditional or after an error or |
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1969 * interrupt or throw) or for a ":finally" without ":try" or a multiple |
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1970 * ":finally". After every other error (did_emsg or the conditional |
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1971 * errors detected above) or after an interrupt (got_int) or an |
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1972 * exception (did_throw), the finally clause must be executed. |
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1973 */ |
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1974 skip = !(cstack->cs_flags[cstack->cs_idx] & CSF_TRUE); |
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1975 |
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1976 if (!skip) |
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1977 { |
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1978 // When debugging or a breakpoint was encountered, display the |
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1979 // debug prompt (if not already done). The user then knows that the |
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1980 // finally clause is executed. |
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1981 if (dbg_check_skipped(eap)) |
| 7 | 1982 { |
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1983 // Handle a ">quit" debug command as if an interrupt had |
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1984 // occurred before the ":finally". That is, discard the |
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1985 // original exception and replace it by an interrupt |
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1986 // exception. |
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1987 (void)do_intthrow(cstack); |
| 7 | 1988 } |
| 1989 | |
| 1990 /* | |
|
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1991 * If there is a preceding catch clause and it caught the exception, |
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1992 * finish the exception now. This happens also after errors except |
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1993 * when this is a multiple ":finally" or one not within a ":try". |
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1994 * After an error or interrupt, this also discards a pending |
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1995 * ":continue", ":break", ":finish", or ":return" from the preceding |
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1996 * try block or catch clause. |
| 7 | 1997 */ |
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1998 cleanup_conditionals(cstack, CSF_TRY, FALSE); |
| 7 | 1999 |
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2000 if (cstack->cs_idx >= 0 |
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2001 && (cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) |
| 7 | 2002 { |
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2003 // Variables declared in the previous block can no longer be |
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2004 // used. |
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2005 leave_block(cstack); |
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2006 enter_block(cstack); |
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2007 } |
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2008 |
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2009 /* |
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2010 * Make did_emsg, got_int, did_throw pending. If set, they overrule |
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2011 * a pending ":continue", ":break", ":return", or ":finish". Then |
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2012 * we have particularly to discard a pending return value (as done |
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2013 * by the call to cleanup_conditionals() above when did_emsg or |
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2014 * got_int is set). The pending values are restored by the |
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2015 * ":endtry", except if there is a new error, interrupt, exception, |
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2016 * ":continue", ":break", ":return", or ":finish" in the following |
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2017 * finally clause. A missing ":endwhile", ":endfor" or ":endif" |
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2018 * detected here is treated as if did_emsg and did_throw had |
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2019 * already been set, respectively in case that the error is not |
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2020 * converted to an exception, did_throw had already been unset. |
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2021 * We must not set did_emsg here since that would suppress the |
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2022 * error message. |
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Bram Moolenaar <Bram@vim.org>
parents:
30399
diff
changeset
|
2023 */ |
|
4bbc920bdef7
patch 9.0.0577: buffer underflow with unexpected :finally
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parents:
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diff
changeset
|
2024 if (pending == CSTP_ERROR || did_emsg || got_int || did_throw) |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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parents:
30399
diff
changeset
|
2025 { |
|
4bbc920bdef7
patch 9.0.0577: buffer underflow with unexpected :finally
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2026 if (cstack->cs_pending[cstack->cs_idx] == CSTP_RETURN) |
| 7 | 2027 { |
|
30483
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patch 9.0.0577: buffer underflow with unexpected :finally
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30399
diff
changeset
|
2028 report_discard_pending(CSTP_RETURN, |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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diff
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|
2029 cstack->cs_rettv[cstack->cs_idx]); |
|
4bbc920bdef7
patch 9.0.0577: buffer underflow with unexpected :finally
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2030 discard_pending_return(cstack->cs_rettv[cstack->cs_idx]); |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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diff
changeset
|
2031 } |
|
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|
2032 if (pending == CSTP_ERROR && !did_emsg) |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2033 pending |= (THROW_ON_ERROR) ? CSTP_THROW : 0; |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2034 else |
|
4bbc920bdef7
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|
2035 pending |= did_throw ? CSTP_THROW : 0; |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2036 pending |= did_emsg ? CSTP_ERROR : 0; |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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diff
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|
2037 pending |= got_int ? CSTP_INTERRUPT : 0; |
|
4bbc920bdef7
patch 9.0.0577: buffer underflow with unexpected :finally
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diff
changeset
|
2038 cstack->cs_pending[cstack->cs_idx] = pending; |
| 7 | 2039 |
|
30483
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patch 9.0.0577: buffer underflow with unexpected :finally
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changeset
|
2040 // It's mandatory that the current exception is stored in the |
|
4bbc920bdef7
patch 9.0.0577: buffer underflow with unexpected :finally
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diff
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|
2041 // cstack so that it can be rethrown at the ":endtry" or be |
|
4bbc920bdef7
patch 9.0.0577: buffer underflow with unexpected :finally
Bram Moolenaar <Bram@vim.org>
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changeset
|
2042 // discarded if the finally clause is left by a ":continue", |
|
4bbc920bdef7
patch 9.0.0577: buffer underflow with unexpected :finally
Bram Moolenaar <Bram@vim.org>
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|
2043 // ":break", ":return", ":finish", error, interrupt, or another |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2044 // exception. When emsg() is called for a missing ":endif" or |
|
4bbc920bdef7
patch 9.0.0577: buffer underflow with unexpected :finally
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|
2045 // a missing ":endwhile"/":endfor" detected here, the |
|
4bbc920bdef7
patch 9.0.0577: buffer underflow with unexpected :finally
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changeset
|
2046 // exception will be discarded. |
|
4bbc920bdef7
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Bram Moolenaar <Bram@vim.org>
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changeset
|
2047 if (did_throw && cstack->cs_exception[cstack->cs_idx] |
|
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|
2048 != current_exception) |
|
4bbc920bdef7
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Bram Moolenaar <Bram@vim.org>
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|
2049 internal_error("ex_finally()"); |
|
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changeset
|
2050 } |
| 7 | 2051 |
|
30483
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|
2052 /* |
|
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diff
changeset
|
2053 * Set CSL_HAD_FINA, so do_cmdline() will reset did_emsg, |
|
4bbc920bdef7
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diff
changeset
|
2054 * got_int, and did_throw and make the finally clause active. |
|
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diff
changeset
|
2055 * This will happen after emsg() has been called for a missing |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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diff
changeset
|
2056 * ":endif" or a missing ":endwhile"/":endfor" detected here, so |
|
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|
2057 * that the following finally clause will be executed even then. |
|
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|
2058 */ |
|
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|
2059 cstack->cs_lflags |= CSL_HAD_FINA; |
| 7 | 2060 } |
| 2061 } | |
| 2062 | |
| 2063 /* | |
| 2064 * ":endtry" | |
| 2065 */ | |
| 2066 void | |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
2067 ex_endtry(exarg_T *eap) |
| 7 | 2068 { |
| 2069 int idx; | |
| 2070 int skip; | |
| 2071 int rethrow = FALSE; | |
| 2072 int pending = CSTP_NONE; | |
| 68 | 2073 void *rettv = NULL; |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
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changeset
|
2074 cstack_T *cstack = eap->cstack; |
| 7 | 2075 |
|
25575
9f691e8a74e3
patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
Bram Moolenaar <Bram@vim.org>
parents:
25537
diff
changeset
|
2076 if (cmdmod_error(FALSE)) |
|
24222
a2e6029d354e
patch 8.2.2652: Vim9: can use command modifier without an effect
Bram Moolenaar <Bram@vim.org>
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24022
diff
changeset
|
2077 return; |
|
a2e6029d354e
patch 8.2.2652: Vim9: can use command modifier without an effect
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|
2078 |
|
30483
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|
2079 for (idx = cstack->cs_idx; idx >= 0; --idx) |
|
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|
2080 if (cstack->cs_flags[idx] & CSF_TRY) |
|
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|
2081 break; |
|
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|
2082 if (cstack->cs_trylevel <= 0 || idx < 0) |
| 7 | 2083 { |
|
30483
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|
2084 eap->errmsg = _(e_endtry_without_try); |
|
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|
2085 return; |
|
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|
2086 } |
|
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|
2087 |
|
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|
2088 /* |
|
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|
2089 * Don't do something after an error, interrupt or throw in the try |
|
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|
2090 * block, catch clause, or finally clause preceding this ":endtry" or |
|
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|
2091 * when an error or interrupt occurred after a ":continue", ":break", |
|
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|
2092 * ":return", or ":finish" in a try block or catch clause preceding this |
|
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|
2093 * ":endtry" or when the try block never got active (because of an |
|
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|
2094 * inactive surrounding conditional or after an error or interrupt or |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2095 * throw) or when there is a surrounding conditional and it has been |
|
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|
2096 * made inactive by a ":continue", ":break", ":return", or ":finish" in |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2097 * the finally clause. The latter case need not be tested since then |
|
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|
2098 * anything pending has already been discarded. */ |
|
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changeset
|
2099 skip = did_emsg || got_int || did_throw |
|
25124
075790758d11
patch 8.2.3099: Vim9: missing catch/finally not reported at script level
Bram Moolenaar <Bram@vim.org>
parents:
24369
diff
changeset
|
2100 || !(cstack->cs_flags[cstack->cs_idx] & CSF_TRUE); |
| 7 | 2101 |
|
30483
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|
2102 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) |
|
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|
2103 { |
|
4bbc920bdef7
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|
2104 eap->errmsg = get_end_emsg(cstack); |
|
25905
892f937358ea
patch 8.2.3486: illegal memory access with invalid sequence of commands
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2105 |
|
30483
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changeset
|
2106 // Find the matching ":try" and report what's missing. |
|
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|
2107 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR, |
|
4bbc920bdef7
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|
2108 &cstack->cs_looplevel); |
|
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|
2109 skip = TRUE; |
| 7 | 2110 |
|
30483
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|
2111 /* |
|
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changeset
|
2112 * If an exception is being thrown, discard it to prevent it from |
|
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changeset
|
2113 * being rethrown at the end of this function. It would be |
|
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changeset
|
2114 * discarded by the error message, anyway. Resets did_throw. |
|
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changeset
|
2115 * This does not affect the script termination due to the error |
|
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changeset
|
2116 * since "trylevel" is decremented after emsg() has been called. |
|
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changeset
|
2117 */ |
|
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|
2118 if (did_throw) |
|
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|
2119 discard_current_exception(); |
|
25905
892f937358ea
patch 8.2.3486: illegal memory access with invalid sequence of commands
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2120 |
|
30483
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changeset
|
2121 // report eap->errmsg, also when there already was an error |
|
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changeset
|
2122 did_emsg = FALSE; |
|
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|
2123 } |
|
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|
2124 else |
|
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|
2125 { |
|
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changeset
|
2126 idx = cstack->cs_idx; |
| 7 | 2127 |
|
30483
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changeset
|
2128 // Check the flags only when not in a skipped block. |
|
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changeset
|
2129 if (!skip && in_vim9script() |
|
25124
075790758d11
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Bram Moolenaar <Bram@vim.org>
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|
2130 && (cstack->cs_flags[idx] & (CSF_CATCH|CSF_FINALLY)) == 0) |
| 7 | 2131 { |
|
30483
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changeset
|
2132 // try/endtry without any catch or finally: give an error and |
|
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|
2133 // continue. |
|
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changeset
|
2134 eap->errmsg = _(e_missing_catch_or_finally); |
| 7 | 2135 } |
| 2136 | |
| 2137 /* | |
|
30483
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changeset
|
2138 * If we stopped with the exception currently being thrown at this |
|
4bbc920bdef7
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|
2139 * try conditional since we didn't know that it doesn't have |
|
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changeset
|
2140 * a finally clause, we need to rethrow it after closing the try |
|
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changeset
|
2141 * conditional. |
| 7 | 2142 */ |
|
30483
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changeset
|
2143 if (did_throw && (cstack->cs_flags[idx] & CSF_TRUE) |
|
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|
2144 && !(cstack->cs_flags[idx] & CSF_FINALLY)) |
|
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changeset
|
2145 rethrow = TRUE; |
|
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2146 } |
|
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2147 |
|
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2148 // If there was no finally clause, show the user when debugging or |
|
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2149 // a breakpoint was encountered that the end of the try conditional has |
|
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2150 // been reached: display the debug prompt (if not already done). Do |
|
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2151 // this on normal control flow or when an exception was thrown, but not |
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2152 // on an interrupt or error not converted to an exception or when |
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2153 // a ":break", ":continue", ":return", or ":finish" is pending. These |
|
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2154 // actions are carried out immediately. |
|
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2155 if ((rethrow || (!skip && !(cstack->cs_flags[idx] & CSF_FINALLY) |
|
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2156 && !cstack->cs_pending[idx])) |
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2157 && dbg_check_skipped(eap)) |
|
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2158 { |
|
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|
2159 // Handle a ">quit" debug command as if an interrupt had occurred |
|
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2160 // before the ":endtry". That is, throw an interrupt exception and |
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2161 // set "skip" and "rethrow". |
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2162 if (got_int) |
| 7 | 2163 { |
|
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2164 skip = TRUE; |
|
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2165 (void)do_intthrow(cstack); |
|
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2166 // The do_intthrow() call may have reset did_throw or |
|
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2167 // cstack->cs_pending[idx]. |
|
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2168 rethrow = FALSE; |
|
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2169 if (did_throw && !(cstack->cs_flags[idx] & CSF_FINALLY)) |
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2170 rethrow = TRUE; |
| 7 | 2171 } |
|
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2172 } |
| 7 | 2173 |
|
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|
2174 /* |
|
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2175 * If a ":return" is pending, we need to resume it after closing the |
|
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2176 * try conditional; remember the return value. If there was a finally |
|
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2177 * clause making an exception pending, we need to rethrow it. Make it |
|
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2178 * the exception currently being thrown. |
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2179 */ |
|
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|
2180 if (!skip) |
|
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|
2181 { |
|
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2182 pending = cstack->cs_pending[idx]; |
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2183 cstack->cs_pending[idx] = CSTP_NONE; |
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2184 if (pending == CSTP_RETURN) |
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2185 rettv = cstack->cs_rettv[idx]; |
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2186 else if (pending & CSTP_THROW) |
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2187 current_exception = cstack->cs_exception[idx]; |
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2188 } |
| 7 | 2189 |
|
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2190 /* |
|
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2191 * Discard anything pending on an error, interrupt, or throw in the |
|
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2192 * finally clause. If there was no ":finally", discard a pending |
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2193 * ":continue", ":break", ":return", or ":finish" if an error or |
|
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2194 * interrupt occurred afterwards, but before the ":endtry" was reached. |
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2195 * If an exception was caught by the last of the catch clauses and there |
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2196 * was no finally clause, finish the exception now. This happens also |
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2197 * after errors except when this ":endtry" is not within a ":try". |
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2198 * Restore "emsg_silent" if it has been reset by this try conditional. |
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2199 */ |
|
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2200 (void)cleanup_conditionals(cstack, CSF_TRY | CSF_SILENT, TRUE); |
| 7 | 2201 |
|
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2202 if (cstack->cs_idx >= 0 && (cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) |
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2203 leave_block(cstack); |
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2204 --cstack->cs_trylevel; |
|
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2205 |
|
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2206 if (!skip) |
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2207 { |
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2208 report_resume_pending(pending, |
| 68 | 2209 (pending == CSTP_RETURN) ? rettv : |
| 7 | 2210 (pending & CSTP_THROW) ? (void *)current_exception : NULL); |
|
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2211 switch (pending) |
|
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2212 { |
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2213 case CSTP_NONE: |
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2214 break; |
| 7 | 2215 |
|
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2216 // Reactivate a pending ":continue", ":break", ":return", |
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2217 // ":finish" from the try block or a catch clause of this try |
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2218 // conditional. This is skipped, if there was an error in an |
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2219 // (unskipped) conditional command or an interrupt afterwards |
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2220 // or if the finally clause is present and executed a new error, |
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2221 // interrupt, throw, ":continue", ":break", ":return", or |
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2222 // ":finish". |
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2223 case CSTP_CONTINUE: |
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2224 ex_continue(eap); |
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2225 break; |
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2226 case CSTP_BREAK: |
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2227 ex_break(eap); |
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2228 break; |
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2229 case CSTP_RETURN: |
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2230 do_return(eap, FALSE, FALSE, rettv); |
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2231 break; |
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2232 case CSTP_FINISH: |
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2233 do_finish(eap, FALSE); |
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2234 break; |
| 7 | 2235 |
|
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2236 // When the finally clause was entered due to an error, |
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2237 // interrupt or throw (as opposed to a ":continue", ":break", |
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2238 // ":return", or ":finish"), restore the pending values of |
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2239 // did_emsg, got_int, and did_throw. This is skipped, if there |
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2240 // was a new error, interrupt, throw, ":continue", ":break", |
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2241 // ":return", or ":finish". in the finally clause. |
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2242 default: |
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2243 if (pending & CSTP_ERROR) |
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2244 did_emsg = TRUE; |
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2245 if (pending & CSTP_INTERRUPT) |
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2246 got_int = TRUE; |
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2247 if (pending & CSTP_THROW) |
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2248 rethrow = TRUE; |
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2249 break; |
| 7 | 2250 } |
|
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2251 } |
| 7 | 2252 |
|
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2253 if (rethrow) |
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2254 // Rethrow the current exception (within this cstack). |
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2255 do_throw(cstack); |
| 7 | 2256 } |
| 2257 | |
| 2258 /* | |
| 36 | 2259 * enter_cleanup() and leave_cleanup() |
| 2260 * | |
| 2261 * Functions to be called before/after invoking a sequence of autocommands for | |
| 2262 * cleanup for a failed command. (Failure means here that a call to emsg() | |
| 2263 * has been made, an interrupt occurred, or there is an uncaught exception | |
| 2264 * from a previous autocommand execution of the same command.) | |
| 24 | 2265 * |
| 36 | 2266 * Call enter_cleanup() with a pointer to a cleanup_T and pass the same |
| 2267 * pointer to leave_cleanup(). The cleanup_T structure stores the pending | |
| 2268 * error/interrupt/exception state. | |
| 2269 */ | |
| 2270 | |
| 2271 /* | |
| 2272 * This function works a bit like ex_finally() except that there was not | |
| 2273 * actually an extra try block around the part that failed and an error or | |
| 2274 * interrupt has not (yet) been converted to an exception. This function | |
| 2275 * saves the error/interrupt/ exception state and prepares for the call to | |
| 2276 * do_cmdline() that is going to be made for the cleanup autocommand | |
| 2277 * execution. | |
| 24 | 2278 */ |
| 2279 void | |
|
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Christian Brabandt <cb@256bit.org>
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7801
diff
changeset
|
2280 enter_cleanup(cleanup_T *csp) |
| 24 | 2281 { |
| 2282 int pending = CSTP_NONE; | |
| 2283 | |
| 2284 /* | |
| 2285 * Postpone did_emsg, got_int, did_throw. The pending values will be | |
| 2286 * restored by leave_cleanup() except if there was an aborting error, | |
| 2287 * interrupt, or uncaught exception after this function ends. | |
| 2288 */ | |
| 2289 if (did_emsg || got_int || did_throw || need_rethrow) | |
| 2290 { | |
| 2291 csp->pending = (did_emsg ? CSTP_ERROR : 0) | |
| 2292 | (got_int ? CSTP_INTERRUPT : 0) | |
| 2293 | (did_throw ? CSTP_THROW : 0) | |
| 2294 | (need_rethrow ? CSTP_THROW : 0); | |
| 2295 | |
|
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diff
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|
2296 // If we are currently throwing an exception (did_throw), save it as |
|
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parents:
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diff
changeset
|
2297 // well. On an error not yet converted to an exception, update |
|
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diff
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|
2298 // "force_abort" and reset "cause_abort" (as do_errthrow() would do). |
|
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changeset
|
2299 // This is needed for the do_cmdline() call that is going to be made |
|
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parents:
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|
2300 // for autocommand execution. We need not save *msg_list because |
|
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parents:
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diff
changeset
|
2301 // there is an extra instance for every call of do_cmdline(), anyway. |
| 24 | 2302 if (did_throw || need_rethrow) |
|
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patch 8.0.0705: crash when there is an error in a timer callback
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parents:
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diff
changeset
|
2303 { |
| 24 | 2304 csp->exception = current_exception; |
|
11645
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patch 8.0.0705: crash when there is an error in a timer callback
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2305 current_exception = NULL; |
|
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patch 8.0.0705: crash when there is an error in a timer callback
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2306 } |
| 24 | 2307 else |
| 2308 { | |
| 2309 csp->exception = NULL; | |
| 2310 if (did_emsg) | |
| 2311 { | |
| 2312 force_abort |= cause_abort; | |
| 2313 cause_abort = FALSE; | |
| 2314 } | |
| 2315 } | |
| 2316 did_emsg = got_int = did_throw = need_rethrow = FALSE; | |
| 2317 | |
|
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parents:
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changeset
|
2318 // Report if required by the 'verbose' option or when debugging. |
| 24 | 2319 report_make_pending(pending, csp->exception); |
| 2320 } | |
| 2321 else | |
| 2322 { | |
| 2323 csp->pending = CSTP_NONE; | |
| 2324 csp->exception = NULL; | |
| 2325 } | |
| 2326 } | |
| 2327 | |
| 2328 /* | |
| 36 | 2329 * See comment above enter_cleanup() for how this function is used. |
| 2330 * | |
| 2331 * This function is a bit like ex_endtry() except that there was not actually | |
| 2332 * an extra try block around the part that failed and an error or interrupt | |
| 2333 * had not (yet) been converted to an exception when the cleanup autocommand | |
| 2334 * sequence was invoked. | |
| 2335 * | |
| 2336 * This function has to be called with the address of the cleanup_T structure | |
| 2337 * filled by enter_cleanup() as an argument; it restores the error/interrupt/ | |
| 2338 * exception state saved by that function - except there was an aborting | |
| 2339 * error, an interrupt or an uncaught exception during execution of the | |
| 2340 * cleanup autocommands. In the latter case, the saved error/interrupt/ | |
| 2341 * exception state is discarded. | |
| 24 | 2342 */ |
| 2343 void | |
|
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commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
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7801
diff
changeset
|
2344 leave_cleanup(cleanup_T *csp) |
| 24 | 2345 { |
| 2346 int pending = csp->pending; | |
| 2347 | |
|
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changeset
|
2348 if (pending == CSTP_NONE) // nothing to do |
| 24 | 2349 return; |
| 2350 | |
|
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|
2351 // If there was an aborting error, an interrupt, or an uncaught exception |
|
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|
2352 // after the corresponding call to enter_cleanup(), discard what has been |
|
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|
2353 // made pending by it. Report this to the user if required by the |
|
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|
2354 // 'verbose' option or when debugging. |
| 24 | 2355 if (aborting() || need_rethrow) |
| 2356 { | |
| 2357 if (pending & CSTP_THROW) | |
|
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|
2358 // Cancel the pending exception (includes report). |
|
27426
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changeset
|
2359 discard_exception(csp->exception, FALSE); |
| 24 | 2360 else |
| 2361 report_discard_pending(pending, NULL); | |
| 2362 | |
|
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|
2363 // If an error was about to be converted to an exception when |
|
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changeset
|
2364 // enter_cleanup() was called, free the message list. |
| 1046 | 2365 if (msg_list != NULL) |
| 5517 | 2366 free_global_msglist(); |
| 24 | 2367 } |
| 2368 | |
| 2369 /* | |
| 2370 * If there was no new error, interrupt, or throw between the calls | |
| 2371 * to enter_cleanup() and leave_cleanup(), restore the pending | |
| 2372 * error/interrupt/exception state. | |
| 2373 */ | |
| 2374 else | |
| 2375 { | |
| 2376 /* | |
| 2377 * If there was an exception being thrown when enter_cleanup() was | |
| 2378 * called, we need to rethrow it. Make it the exception currently | |
| 2379 * being thrown. | |
| 2380 */ | |
| 2381 if (pending & CSTP_THROW) | |
| 2382 current_exception = csp->exception; | |
| 2383 | |
| 2384 /* | |
| 2385 * If an error was about to be converted to an exception when | |
| 2386 * enter_cleanup() was called, let "cause_abort" take the part of | |
| 2387 * "force_abort" (as done by cause_errthrow()). | |
| 2388 */ | |
| 2389 else if (pending & CSTP_ERROR) | |
| 2390 { | |
| 2391 cause_abort = force_abort; | |
| 2392 force_abort = FALSE; | |
| 2393 } | |
| 2394 | |
| 2395 /* | |
| 2396 * Restore the pending values of did_emsg, got_int, and did_throw. | |
| 2397 */ | |
| 2398 if (pending & CSTP_ERROR) | |
| 2399 did_emsg = TRUE; | |
| 2400 if (pending & CSTP_INTERRUPT) | |
| 2401 got_int = TRUE; | |
| 2402 if (pending & CSTP_THROW) | |
|
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changeset
|
2403 need_rethrow = TRUE; // did_throw will be set by do_one_cmd() |
| 24 | 2404 |
|
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changeset
|
2405 // Report if required by the 'verbose' option or when debugging. |
| 24 | 2406 report_resume_pending(pending, |
| 36 | 2407 (pending & CSTP_THROW) ? (void *)current_exception : NULL); |
| 24 | 2408 } |
| 2409 } | |
| 2410 | |
| 2411 | |
| 2412 /* | |
| 7 | 2413 * Make conditionals inactive and discard what's pending in finally clauses |
| 2414 * until the conditional type searched for or a try conditional not in its | |
| 79 | 2415 * finally clause is reached. If this is in an active catch clause, finish |
| 2416 * the caught exception. | |
| 2417 * Return the cstack index where the search stopped. | |
| 75 | 2418 * Values used for "searched_cond" are (CSF_WHILE | CSF_FOR) or CSF_TRY or 0, |
| 2419 * the latter meaning the innermost try conditional not in its finally clause. | |
| 2420 * "inclusive" tells whether the conditional searched for should be made | |
| 4352 | 2421 * inactive itself (a try conditional not in its finally clause possibly find |
| 75 | 2422 * before is always made inactive). If "inclusive" is TRUE and |
| 2423 * "searched_cond" is CSF_TRY|CSF_SILENT, the saved former value of | |
| 2424 * "emsg_silent", if reset when the try conditional finally reached was | |
| 4352 | 2425 * entered, is restored (used by ex_endtry()). This is normally done only |
| 75 | 2426 * when such a try conditional is left. |
| 7 | 2427 */ |
| 2428 int | |
|
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2429 cleanup_conditionals( |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
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parents:
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diff
changeset
|
2430 cstack_T *cstack, |
|
7819
f86adafb28d4
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Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
2431 int searched_cond, |
|
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
2432 int inclusive) |
| 7 | 2433 { |
| 2434 int idx; | |
| 2435 int stop = FALSE; | |
| 2436 | |
| 2437 for (idx = cstack->cs_idx; idx >= 0; --idx) | |
| 2438 { | |
| 2439 if (cstack->cs_flags[idx] & CSF_TRY) | |
| 2440 { | |
| 2441 /* | |
| 2442 * Discard anything pending in a finally clause and continue the | |
| 2443 * search. There may also be a pending ":continue", ":break", | |
| 2444 * ":return", or ":finish" before the finally clause. We must not | |
| 2445 * discard it, unless an error or interrupt occurred afterwards. | |
| 2446 */ | |
| 359 | 2447 if (did_emsg || got_int || (cstack->cs_flags[idx] & CSF_FINALLY)) |
| 7 | 2448 { |
| 2449 switch (cstack->cs_pending[idx]) | |
| 2450 { | |
| 2451 case CSTP_NONE: | |
| 2452 break; | |
| 2453 | |
| 2454 case CSTP_CONTINUE: | |
| 2455 case CSTP_BREAK: | |
| 2456 case CSTP_FINISH: | |
| 2457 report_discard_pending(cstack->cs_pending[idx], NULL); | |
| 2458 cstack->cs_pending[idx] = CSTP_NONE; | |
| 2459 break; | |
| 2460 | |
| 2461 case CSTP_RETURN: | |
| 2462 report_discard_pending(CSTP_RETURN, | |
| 68 | 2463 cstack->cs_rettv[idx]); |
| 2464 discard_pending_return(cstack->cs_rettv[idx]); | |
| 7 | 2465 cstack->cs_pending[idx] = CSTP_NONE; |
| 2466 break; | |
| 2467 | |
| 2468 default: | |
| 2469 if (cstack->cs_flags[idx] & CSF_FINALLY) | |
| 2470 { | |
|
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a58520ab7c3b
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Bram Moolenaar <Bram@vim.org>
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25680
diff
changeset
|
2471 if ((cstack->cs_pending[idx] & CSTP_THROW) |
|
a58520ab7c3b
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diff
changeset
|
2472 && cstack->cs_exception[idx] != NULL) |
| 7 | 2473 { |
|
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changeset
|
2474 // Cancel the pending exception. This is in the |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
2475 // finally clause, so that the stack of the |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2476 // caught exceptions is not involved. |
|
23235
22037d6da577
patch 8.2.2163: crash when discarded exception is the current exception
Bram Moolenaar <Bram@vim.org>
parents:
22643
diff
changeset
|
2477 discard_exception( |
|
22037d6da577
patch 8.2.2163: crash when discarded exception is the current exception
Bram Moolenaar <Bram@vim.org>
parents:
22643
diff
changeset
|
2478 (except_T *)cstack->cs_exception[idx], |
| 7 | 2479 FALSE); |
| 2480 } | |
| 2481 else | |
| 2482 report_discard_pending(cstack->cs_pending[idx], | |
| 2483 NULL); | |
| 2484 cstack->cs_pending[idx] = CSTP_NONE; | |
| 2485 } | |
| 2486 break; | |
| 2487 } | |
| 2488 } | |
| 2489 | |
| 2490 /* | |
| 2491 * Stop at a try conditional not in its finally clause. If this try | |
| 2492 * conditional is in an active catch clause, finish the caught | |
| 2493 * exception. | |
| 2494 */ | |
| 2495 if (!(cstack->cs_flags[idx] & CSF_FINALLY)) | |
| 2496 { | |
| 2497 if ((cstack->cs_flags[idx] & CSF_ACTIVE) | |
|
25889
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patch 8.2.3478: still crash with error in :catch and also in :finally
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2498 && (cstack->cs_flags[idx] & CSF_CAUGHT) |
|
c83ebae45881
patch 8.2.3478: still crash with error in :catch and also in :finally
Bram Moolenaar <Bram@vim.org>
parents:
25872
diff
changeset
|
2499 && !(cstack->cs_flags[idx] & CSF_FINISHED)) |
|
c83ebae45881
patch 8.2.3478: still crash with error in :catch and also in :finally
Bram Moolenaar <Bram@vim.org>
parents:
25872
diff
changeset
|
2500 { |
| 7 | 2501 finish_exception((except_T *)cstack->cs_exception[idx]); |
|
25889
c83ebae45881
patch 8.2.3478: still crash with error in :catch and also in :finally
Bram Moolenaar <Bram@vim.org>
parents:
25872
diff
changeset
|
2502 cstack->cs_flags[idx] |= CSF_FINISHED; |
|
c83ebae45881
patch 8.2.3478: still crash with error in :catch and also in :finally
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parents:
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diff
changeset
|
2503 } |
|
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patch 8.1.2379: using old C style comments
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diff
changeset
|
2504 // Stop at this try conditional - except the try block never |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
2505 // got active (because of an inactive surrounding conditional |
|
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parents:
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diff
changeset
|
2506 // or when the ":try" appeared after an error or interrupt or |
|
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patch 8.1.2379: using old C style comments
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parents:
18699
diff
changeset
|
2507 // throw). |
| 7 | 2508 if (cstack->cs_flags[idx] & CSF_TRUE) |
| 2509 { | |
| 2510 if (searched_cond == 0 && !inclusive) | |
| 2511 break; | |
| 2512 stop = TRUE; | |
| 2513 } | |
| 2514 } | |
| 2515 } | |
| 2516 | |
|
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patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
2517 // Stop on the searched conditional type (even when the surrounding |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
18699
diff
changeset
|
2518 // conditional is not active or something has been made pending). |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2519 // If "inclusive" is TRUE and "searched_cond" is CSF_TRY|CSF_SILENT, |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2520 // check first whether "emsg_silent" needs to be restored. |
| 7 | 2521 if (cstack->cs_flags[idx] & searched_cond) |
| 2522 { | |
| 2523 if (!inclusive) | |
| 2524 break; | |
| 2525 stop = TRUE; | |
| 2526 } | |
| 2527 cstack->cs_flags[idx] &= ~CSF_ACTIVE; | |
| 2528 if (stop && searched_cond != (CSF_TRY | CSF_SILENT)) | |
| 2529 break; | |
| 2530 | |
| 2531 /* | |
| 1214 | 2532 * When leaving a try conditional that reset "emsg_silent" on its |
| 2533 * entry after saving the original value, restore that value here and | |
| 2534 * free the memory used to store it. | |
| 7 | 2535 */ |
| 2536 if ((cstack->cs_flags[idx] & CSF_TRY) | |
| 359 | 2537 && (cstack->cs_flags[idx] & CSF_SILENT)) |
| 7 | 2538 { |
| 2539 eslist_T *elem; | |
| 2540 | |
| 2541 elem = cstack->cs_emsg_silent_list; | |
| 2542 cstack->cs_emsg_silent_list = elem->next; | |
| 2543 emsg_silent = elem->saved_emsg_silent; | |
| 2544 vim_free(elem); | |
| 2545 cstack->cs_flags[idx] &= ~CSF_SILENT; | |
| 2546 } | |
| 2547 if (stop) | |
| 2548 break; | |
| 2549 } | |
| 2550 return idx; | |
| 2551 } | |
| 2552 | |
| 2553 /* | |
| 75 | 2554 * Return an appropriate error message for a missing endwhile/endfor/endif. |
| 2555 */ | |
|
15470
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patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2556 static char * |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2557 get_end_emsg(cstack_T *cstack) |
| 75 | 2558 { |
| 2559 if (cstack->cs_flags[cstack->cs_idx] & CSF_WHILE) | |
|
26857
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patch 8.2.3957: error messages are spread out
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2560 return _(e_missing_endwhile); |
| 75 | 2561 if (cstack->cs_flags[cstack->cs_idx] & CSF_FOR) |
|
26857
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parents:
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diff
changeset
|
2562 return _(e_missing_endfor); |
|
2aeea8611342
patch 8.2.3957: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2563 return _(e_missing_endif); |
| 75 | 2564 } |
| 2565 | |
| 2566 | |
| 2567 /* | |
| 7 | 2568 * Rewind conditionals until index "idx" is reached. "cond_type" and |
| 2569 * "cond_level" specify a conditional type and the address of a level variable | |
| 2570 * which is to be decremented with each skipped conditional of the specified | |
| 2571 * type. | |
| 79 | 2572 * Also free "for info" structures where needed. |
| 7 | 2573 */ |
| 79 | 2574 void |
|
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Christian Brabandt <cb@256bit.org>
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7801
diff
changeset
|
2575 rewind_conditionals( |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
2576 cstack_T *cstack, |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
2577 int idx, |
|
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
2578 int cond_type, |
|
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
2579 int *cond_level) |
| 7 | 2580 { |
| 2581 while (cstack->cs_idx > idx) | |
| 2582 { | |
| 2583 if (cstack->cs_flags[cstack->cs_idx] & cond_type) | |
| 2584 --*cond_level; | |
| 79 | 2585 if (cstack->cs_flags[cstack->cs_idx] & CSF_FOR) |
| 2586 free_for_info(cstack->cs_forinfo[cstack->cs_idx]); | |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
2587 leave_block(cstack); |
| 7 | 2588 } |
| 2589 } | |
| 2590 | |
| 2591 /* | |
|
26861
df2de1e63de0
patch 8.2.3959: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26857
diff
changeset
|
2592 * ":endfunction" or ":enddef" when not after a ":function" |
| 7 | 2593 */ |
| 2594 void | |
|
20029
8fb1cf4c44d5
patch 8.2.0570: Vim9: no error when omitting type from argument
Bram Moolenaar <Bram@vim.org>
parents:
19892
diff
changeset
|
2595 ex_endfunction(exarg_T *eap) |
| 7 | 2596 { |
|
20029
8fb1cf4c44d5
patch 8.2.0570: Vim9: no error when omitting type from argument
Bram Moolenaar <Bram@vim.org>
parents:
19892
diff
changeset
|
2597 if (eap->cmdidx == CMD_enddef) |
|
26861
df2de1e63de0
patch 8.2.3959: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26857
diff
changeset
|
2598 semsg(_(e_str_not_inside_function), ":enddef"); |
|
20029
8fb1cf4c44d5
patch 8.2.0570: Vim9: no error when omitting type from argument
Bram Moolenaar <Bram@vim.org>
parents:
19892
diff
changeset
|
2599 else |
|
26861
df2de1e63de0
patch 8.2.3959: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26857
diff
changeset
|
2600 semsg(_(e_str_not_inside_function), ":endfunction"); |
| 7 | 2601 } |
| 2602 | |
| 2603 /* | |
| 75 | 2604 * Return TRUE if the string "p" looks like a ":while" or ":for" command. |
| 7 | 2605 */ |
| 2606 int | |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
2607 has_loop_cmd(char_u *p) |
| 7 | 2608 { |
| 1447 | 2609 int len; |
| 2610 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2611 // skip modifiers, white space and ':' |
| 1447 | 2612 for (;;) |
| 2613 { | |
| 2614 while (*p == ' ' || *p == '\t' || *p == ':') | |
| 2615 ++p; | |
| 2616 len = modifier_len(p); | |
| 2617 if (len == 0) | |
| 2618 break; | |
| 2619 p += len; | |
| 2620 } | |
| 75 | 2621 if ((p[0] == 'w' && p[1] == 'h') |
| 2622 || (p[0] == 'f' && p[1] == 'o' && p[2] == 'r')) | |
| 7 | 2623 return TRUE; |
| 2624 return FALSE; | |
| 2625 } | |
| 2626 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2627 #endif // FEAT_EVAL |