Mercurial > vim
annotate src/ex_eval.c @ 26831:537fdb6653a9 v8.2.3944
patch 8.2.3944: insert mode completion functions are too long
Commit: https://github.com/vim/vim/commit/5d2e007ccbfbd749a1f201d06965b8811ff50e6e
Author: Yegappan Lakshmanan <yegappan@yahoo.com>
Date: Thu Dec 30 11:40:53 2021 +0000
patch 8.2.3944: insert mode completion functions are too long
Problem: Insert mode completion functions are too long.
Solution: Split up into multiple functions. (Yegappan Lakshmanan,
closes #9431)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Thu, 30 Dec 2021 12:45:03 +0100 |
| parents | 3711e56f7e7b |
| children | 2aeea8611342 |
| 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 */ | |
| 194 if (mesg == (char_u *)_(e_interr)) | |
| 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
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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 | |
|
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patch 8.1.2379: using old C style comments
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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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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:
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diff
changeset
|
426 except_type_T type, |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
427 char_u *cmdname, |
|
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
428 int *should_free) |
| 7 | 429 { |
|
15470
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patch 8.1.0743: giving error messages is not flexible
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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; |
|
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patch 8.1.0743: giving error messages is not flexible
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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
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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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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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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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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
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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
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changeset
|
473 STRCAT(val, mesg); // 'E123' missing or at beginning |
| 7 | 474 else |
| 475 { | |
|
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patch 8.1.2379: using old C style comments
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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
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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; | |
|
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patch 8.1.0743: giving error messages is not flexible
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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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diff
changeset
|
507 int |
|
10361
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commit https://github.com/vim/vim/commit/8a5883b7488e492419dde7e1637cc72f2d566ba4
Christian Brabandt <cb@256bit.org>
parents:
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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 { | |
|
15470
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patch 8.1.0743: giving error messages is not flexible
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diff
changeset
|
524 emsg(_("E608: 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
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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
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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:
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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
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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
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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:
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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:
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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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|
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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changeset
|
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 or |
|
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892 * option name. |
|
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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 |
|
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|
908 { |
|
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|
909 if (*p == '&') |
|
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|
910 { |
|
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|
911 ++p; |
|
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|
912 if (STRNCMP("l:", p, 2) == 0 || STRNCMP("g:", p, 2) == 0) |
|
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|
913 p += 2; |
|
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914 } |
|
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|
915 else if (*p == '$') |
|
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|
916 ++p; |
|
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|
917 get_name_len(&p, &alias, FALSE, FALSE); |
|
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
|
918 } |
|
25680
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
25575
diff
changeset
|
919 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
|
920 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
|
921 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
|
922 } |
| 7 | 923 |
| 924 /* | |
|
17620
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
925 * ":eval". |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
926 */ |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
927 void |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
928 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
|
929 { |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
930 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
|
931 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
|
932 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
|
933 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
|
934 |
|
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
|
935 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
|
936 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
|
937 |
|
21118
b0baa80cb53f
patch 8.2.1110: Vim9: line continuation does not work in function arguments
Bram Moolenaar <Bram@vim.org>
parents:
21058
diff
changeset
|
938 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
|
939 |
|
20996
3af71cbcfdbe
patch 8.2.1049: Vim9: leaking memory when using continuation line
Bram Moolenaar <Bram@vim.org>
parents:
20992
diff
changeset
|
940 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
|
941 { |
|
17620
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
942 clear_tv(&tv); |
|
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 if (in_vim9script() && name_only && 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
|
944 semsg(_(e_expression_without_effect_str), eap->arg); |
|
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 } |
|
21058
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
parents:
21040
diff
changeset
|
946 |
|
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
parents:
21040
diff
changeset
|
947 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
|
948 } |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
949 |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
950 /* |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
951 * 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
|
952 * 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
|
953 */ |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
954 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
|
955 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
|
956 { |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
957 ++cstack->cs_idx; |
|
24022
29b15fbc2bcb
patch 8.2.2553: Vim9: Cannot put "|" after "{"
Bram Moolenaar <Bram@vim.org>
parents:
23752
diff
changeset
|
958 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
|
959 { |
|
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
|
960 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
|
961 |
|
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
|
962 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
|
963 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
|
964 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
|
965 } |
|
23752
7425d3e5804e
patch 8.2.2417: condition stack values may be used when not set
Bram Moolenaar <Bram@vim.org>
parents:
23493
diff
changeset
|
966 else |
|
7425d3e5804e
patch 8.2.2417: condition stack values may be used when not set
Bram Moolenaar <Bram@vim.org>
parents:
23493
diff
changeset
|
967 { |
|
7425d3e5804e
patch 8.2.2417: condition stack values may be used when not set
Bram Moolenaar <Bram@vim.org>
parents:
23493
diff
changeset
|
968 // 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
|
969 // 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
|
970 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
|
971 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
|
972 } |
|
22551
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 |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
975 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
|
976 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
|
977 { |
|
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
|
978 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
|
979 { |
|
22553
3ed3bed38e0f
patch 8.2.1825: Vim9: accessing freed memory
Bram Moolenaar <Bram@vim.org>
parents:
22551
diff
changeset
|
980 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
|
981 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
|
982 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
|
983 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
|
984 |
|
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
|
985 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
|
986 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
|
987 { |
|
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
|
988 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
|
989 |
|
22643
71b57779177d
patch 8.2.1870: Vim9: no need to keep all script variables
Bram Moolenaar <Bram@vim.org>
parents:
22596
diff
changeset
|
990 // 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
|
991 // 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
|
992 // 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
|
993 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
|
994 // 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
|
995 // 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
|
996 // 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
|
997 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
|
998 } |
|
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
|
999 |
|
22596
107eae953b87
patch 8.2.1846: Vim9: block variables are not found in compiled function
Bram Moolenaar <Bram@vim.org>
parents:
22594
diff
changeset
|
1000 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
|
1001 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
|
1002 else |
|
107eae953b87
patch 8.2.1846: Vim9: block variables are not found in compiled function
Bram Moolenaar <Bram@vim.org>
parents:
22594
diff
changeset
|
1003 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:
22208
diff
changeset
|
1004 } |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1005 --cstack->cs_idx; |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1006 } |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1007 |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1008 /* |
| 7 | 1009 * ":if". |
| 1010 */ | |
| 1011 void | |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1012 ex_if(exarg_T *eap) |
| 7 | 1013 { |
| 1014 int error; | |
| 1015 int skip; | |
| 1016 int result; | |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
1017 cstack_T *cstack = eap->cstack; |
| 7 | 1018 |
| 1019 if (cstack->cs_idx == CSTACK_LEN - 1) | |
|
21459
a422bd80b434
patch 8.2.1280: Ex command error cannot contain an argument
Bram Moolenaar <Bram@vim.org>
parents:
21118
diff
changeset
|
1020 eap->errmsg = _("E579: :if nesting too deep"); |
| 7 | 1021 else |
| 1022 { | |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1023 enter_block(cstack); |
| 7 | 1024 cstack->cs_flags[cstack->cs_idx] = 0; |
| 1025 | |
| 1026 /* | |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1027 * 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:
22208
diff
changeset
|
1028 * there is a surrounding conditional and it was not active. |
| 7 | 1029 */ |
| 1030 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0 | |
| 1031 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE)); | |
| 1032 | |
|
20996
3af71cbcfdbe
patch 8.2.1049: Vim9: leaking memory when using continuation line
Bram Moolenaar <Bram@vim.org>
parents:
20992
diff
changeset
|
1033 result = eval_to_bool(eap->arg, &error, eap, skip); |
| 7 | 1034 |
| 1035 if (!skip && !error) | |
| 1036 { | |
| 1037 if (result) | |
| 1038 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE | CSF_TRUE; | |
| 1039 } | |
| 1040 else | |
|
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|
1041 // set TRUE, so this conditional will never get active |
| 7 | 1042 cstack->cs_flags[cstack->cs_idx] = CSF_TRUE; |
| 1043 } | |
| 1044 } | |
| 1045 | |
| 1046 /* | |
| 1047 * ":endif". | |
| 1048 */ | |
| 1049 void | |
|
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diff
changeset
|
1050 ex_endif(exarg_T *eap) |
| 7 | 1051 { |
|
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|
1052 cstack_T *cstack = eap->cstack; |
|
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|
1053 |
|
25575
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patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
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|
1054 if (cmdmod_error(FALSE)) |
|
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patch 8.2.2652: Vim9: can use command modifier without an effect
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|
1055 return; |
| 7 | 1056 did_endif = TRUE; |
|
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|
1057 if (cstack->cs_idx < 0 |
|
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|
1058 || (cstack->cs_flags[cstack->cs_idx] |
|
22555
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|
1059 & (CSF_WHILE | CSF_FOR | CSF_TRY | CSF_BLOCK))) |
|
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|
1060 eap->errmsg = _(e_endif_without_if); |
| 7 | 1061 else |
| 1062 { | |
| 1063 /* | |
| 1064 * When debugging or a breakpoint was encountered, display the debug | |
| 1065 * prompt (if not already done). This shows the user that an ":endif" | |
| 1066 * is executed when the ":if" or a previous ":elseif" was not TRUE. | |
| 1067 * Handle a ">quit" debug command as if an interrupt had occurred before | |
| 1068 * the ":endif". That is, throw an interrupt exception if appropriate. | |
| 1069 * Doing this here prevents an exception for a parsing error being | |
| 1070 * discarded by throwing the interrupt exception later on. | |
| 1071 */ | |
|
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|
1072 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRUE) |
| 359 | 1073 && dbg_check_skipped(eap)) |
|
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|
1074 (void)do_intthrow(cstack); |
| 7 | 1075 |
|
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|
1076 leave_block(cstack); |
| 7 | 1077 } |
| 1078 } | |
| 1079 | |
| 1080 /* | |
| 1081 * ":else" and ":elseif". | |
| 1082 */ | |
| 1083 void | |
|
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changeset
|
1084 ex_else(exarg_T *eap) |
| 7 | 1085 { |
| 1086 int error; | |
| 1087 int skip; | |
| 1088 int result; | |
|
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|
1089 cstack_T *cstack = eap->cstack; |
| 7 | 1090 |
| 1091 /* | |
| 1092 * Don't do something after an error, interrupt, or throw, or when there is | |
| 1093 * a surrounding conditional and it was not active. | |
| 1094 */ | |
| 1095 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0 | |
| 1096 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE)); | |
| 1097 | |
| 1098 if (cstack->cs_idx < 0 | |
| 75 | 1099 || (cstack->cs_flags[cstack->cs_idx] |
|
22555
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|
1100 & (CSF_WHILE | CSF_FOR | CSF_TRY | CSF_BLOCK))) |
| 7 | 1101 { |
| 1102 if (eap->cmdidx == CMD_else) | |
| 1103 { | |
|
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1104 eap->errmsg = _(e_else_without_if); |
| 7 | 1105 return; |
| 1106 } | |
|
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|
1107 eap->errmsg = _(e_elseif_without_if); |
| 7 | 1108 skip = TRUE; |
| 1109 } | |
| 1110 else if (cstack->cs_flags[cstack->cs_idx] & CSF_ELSE) | |
| 1111 { | |
| 1112 if (eap->cmdidx == CMD_else) | |
| 1113 { | |
|
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1114 eap->errmsg = _("E583: multiple :else"); |
| 7 | 1115 return; |
| 1116 } | |
|
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1117 eap->errmsg = _("E584: :elseif after :else"); |
| 7 | 1118 skip = TRUE; |
| 1119 } | |
| 1120 | |
|
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|
1121 // if skipping or the ":if" was TRUE, reset ACTIVE, otherwise set it |
| 7 | 1122 if (skip || cstack->cs_flags[cstack->cs_idx] & CSF_TRUE) |
| 1123 { | |
| 1124 if (eap->errmsg == NULL) | |
| 1125 cstack->cs_flags[cstack->cs_idx] = CSF_TRUE; | |
|
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|
1126 skip = TRUE; // don't evaluate an ":elseif" |
| 7 | 1127 } |
| 1128 else | |
| 1129 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE; | |
| 1130 | |
| 1131 /* | |
| 1132 * When debugging or a breakpoint was encountered, display the debug prompt | |
| 1133 * (if not already done). This shows the user that an ":else" or ":elseif" | |
| 1134 * is executed when the ":if" or previous ":elseif" was not TRUE. Handle | |
| 1135 * a ">quit" debug command as if an interrupt had occurred before the | |
| 1136 * ":else" or ":elseif". That is, set "skip" and throw an interrupt | |
| 1137 * exception if appropriate. Doing this here prevents that an exception | |
| 1138 * for a parsing errors is discarded when throwing the interrupt exception | |
| 1139 * later on. | |
| 1140 */ | |
| 1141 if (!skip && dbg_check_skipped(eap) && got_int) | |
| 1142 { | |
| 1143 (void)do_intthrow(cstack); | |
| 1144 skip = TRUE; | |
| 1145 } | |
| 1146 | |
| 1147 if (eap->cmdidx == CMD_elseif) | |
| 1148 { | |
|
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|
1149 result = eval_to_bool(eap->arg, &error, eap, skip); |
|
20113
2c23053c654a
patch 8.2.0612: Vim9: no check for space before #comment
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|
1150 |
|
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1151 // When throwing error exceptions, we want to throw always the first |
|
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1152 // of several errors in a row. This is what actually happens when |
|
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1153 // a conditional error was detected above and there is another failure |
|
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1154 // when parsing the expression. Since the skip flag is set in this |
|
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|
1155 // case, the parsing error will be ignored by emsg(). |
| 7 | 1156 if (!skip && !error) |
| 1157 { | |
| 1158 if (result) | |
| 1159 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE | CSF_TRUE; | |
| 1160 else | |
| 1161 cstack->cs_flags[cstack->cs_idx] = 0; | |
| 1162 } | |
| 1163 else if (eap->errmsg == NULL) | |
|
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|
1164 // set TRUE, so this conditional will never get active |
| 7 | 1165 cstack->cs_flags[cstack->cs_idx] = CSF_TRUE; |
| 1166 } | |
| 1167 else | |
| 1168 cstack->cs_flags[cstack->cs_idx] |= CSF_ELSE; | |
| 1169 } | |
| 1170 | |
| 1171 /* | |
| 75 | 1172 * Handle ":while" and ":for". |
| 7 | 1173 */ |
| 1174 void | |
|
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changeset
|
1175 ex_while(exarg_T *eap) |
| 7 | 1176 { |
| 1177 int error; | |
| 1178 int skip; | |
| 1179 int result; | |
|
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|
1180 cstack_T *cstack = eap->cstack; |
| 7 | 1181 |
| 1182 if (cstack->cs_idx == CSTACK_LEN - 1) | |
|
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|
1183 eap->errmsg = _("E585: :while/:for nesting too deep"); |
| 7 | 1184 else |
| 1185 { | |
| 1186 /* | |
| 75 | 1187 * The loop flag is set when we have jumped back from the matching |
| 1188 * ":endwhile" or ":endfor". When not set, need to initialise this | |
| 1189 * cstack entry. | |
| 7 | 1190 */ |
| 75 | 1191 if ((cstack->cs_lflags & CSL_HAD_LOOP) == 0) |
| 7 | 1192 { |
|
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|
1193 enter_block(cstack); |
| 75 | 1194 ++cstack->cs_looplevel; |
| 7 | 1195 cstack->cs_line[cstack->cs_idx] = -1; |
| 1196 } | |
|
24232
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1197 else |
|
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1198 { |
|
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1199 if (in_vim9script() && SCRIPT_ID_VALID(current_sctx.sc_sid)) |
|
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1200 { |
|
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|
1201 scriptitem_T *si = SCRIPT_ITEM(current_sctx.sc_sid); |
|
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patch 8.2.2657: Vim9: error message for declaring variable in for loop
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|
1202 int i; |
|
25358
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patch 8.2.3216: Vim9: crash when using variable in a loop at script level
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changeset
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1203 int func_defined = cstack->cs_flags[cstack->cs_idx] |
|
f03271631eb5
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changeset
|
1204 & CSF_FUNC_DEF; |
|
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|
1205 |
|
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changeset
|
1206 // Any variables defined in the previous round are no longer |
|
26236
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patch 8.2.3649: Vim9: error for variable declared in while loop
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changeset
|
1207 // visible. Keep the first one for ":for", it is the loop |
|
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patch 8.2.3649: Vim9: error for variable declared in while loop
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changeset
|
1208 // variable that we reuse every time around. |
|
9e6ddd7b91cd
patch 8.2.3649: Vim9: error for variable declared in while loop
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changeset
|
1209 for (i = cstack->cs_script_var_len[cstack->cs_idx] |
|
9e6ddd7b91cd
patch 8.2.3649: Vim9: error for variable declared in while loop
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changeset
|
1210 + (eap->cmdidx == CMD_while ? 0 : 1); |
|
24232
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|
1211 i < si->sn_var_vals.ga_len; ++i) |
|
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1212 { |
|
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changeset
|
1213 svar_T *sv = ((svar_T *)si->sn_var_vals.ga_data) + i; |
|
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changeset
|
1214 |
|
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changeset
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1215 // sv_name is set to NULL if it was already removed. This |
|
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|
1216 // happens when it was defined in an inner block and no |
|
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changeset
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1217 // functions were defined there. |
|
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|
1218 if (sv->sv_name != NULL) |
|
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|
1219 // Remove a variable declared inside the block, if it |
|
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|
1220 // still exists, from sn_vars. |
|
25358
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patch 8.2.3216: Vim9: crash when using variable in a loop at script level
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changeset
|
1221 hide_script_var(si, i, func_defined); |
|
24232
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1222 } |
|
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1223 } |
|
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|
1224 } |
| 75 | 1225 cstack->cs_flags[cstack->cs_idx] = |
| 1226 eap->cmdidx == CMD_while ? CSF_WHILE : CSF_FOR; | |
| 7 | 1227 |
| 1228 /* | |
| 75 | 1229 * Don't do something after an error, interrupt, or throw, or when |
| 1230 * there is a surrounding conditional and it was not active. | |
| 7 | 1231 */ |
| 1232 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0 | |
| 1233 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE)); | |
| 75 | 1234 if (eap->cmdidx == CMD_while) |
| 1235 { | |
| 1236 /* | |
| 1237 * ":while bool-expr" | |
| 1238 */ | |
|
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patch 8.2.1049: Vim9: leaking memory when using continuation line
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changeset
|
1239 result = eval_to_bool(eap->arg, &error, eap, skip); |
| 75 | 1240 } |
| 1241 else | |
| 1242 { | |
|
21058
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patch 8.2.1080: Vim9: no line break allowed in a for loop
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changeset
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1243 void *fi; |
|
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
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changeset
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1244 evalarg_T evalarg; |
|
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
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1245 |
|
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1246 /* |
|
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|
1247 * ":for var in list-expr" |
|
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1248 */ |
|
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changeset
|
1249 fill_evalarg_from_eap(&evalarg, eap, skip); |
| 75 | 1250 if ((cstack->cs_lflags & CSL_HAD_LOOP) != 0) |
| 1251 { | |
|
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diff
changeset
|
1252 // Jumping here from a ":continue" or ":endfor": use the |
|
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parents:
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diff
changeset
|
1253 // previously evaluated list. |
| 79 | 1254 fi = cstack->cs_forinfo[cstack->cs_idx]; |
| 75 | 1255 error = FALSE; |
|
21058
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patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1256 |
|
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patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
parents:
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diff
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|
1257 // the "in expr" is not used, skip over it |
|
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
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changeset
|
1258 skip_for_lines(fi, &evalarg); |
| 75 | 1259 } |
| 1260 else | |
| 1261 { | |
|
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patch 8.2.3126: Vim9: for loop error reports wrong line number
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|
1262 long save_lnum = SOURCING_LNUM; |
|
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diff
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|
1263 |
|
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diff
changeset
|
1264 // Evaluate the argument and get the info in a structure. |
|
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Bram Moolenaar <Bram@vim.org>
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changeset
|
1265 fi = eval_for_line(eap->arg, &error, eap, &evalarg); |
| 79 | 1266 cstack->cs_forinfo[cstack->cs_idx] = fi; |
|
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|
1267 |
|
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changeset
|
1268 // Errors should use the first line number. |
|
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Bram Moolenaar <Bram@vim.org>
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|
1269 SOURCING_LNUM = save_lnum; |
| 75 | 1270 } |
| 1271 | |
|
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|
1272 // use the element at the start of the list and advance |
| 75 | 1273 if (!error && fi != NULL && !skip) |
| 1274 result = next_for_item(fi, eap->arg); | |
| 1275 else | |
| 1276 result = FALSE; | |
| 1277 | |
| 1278 if (!result) | |
| 1279 { | |
| 1280 free_for_info(fi); | |
| 79 | 1281 cstack->cs_forinfo[cstack->cs_idx] = NULL; |
| 75 | 1282 } |
|
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|
1283 clear_evalarg(&evalarg, eap); |
| 75 | 1284 } |
| 7 | 1285 |
| 1286 /* | |
| 75 | 1287 * If this cstack entry was just initialised and is active, set the |
| 1288 * loop flag, so do_cmdline() will set the line number in cs_line[]. | |
| 1289 * If executing the command a second time, clear the loop flag. | |
| 7 | 1290 */ |
| 1291 if (!skip && !error && result) | |
| 1292 { | |
| 75 | 1293 cstack->cs_flags[cstack->cs_idx] |= (CSF_ACTIVE | CSF_TRUE); |
| 1294 cstack->cs_lflags ^= CSL_HAD_LOOP; | |
| 7 | 1295 } |
| 1296 else | |
| 1297 { | |
| 75 | 1298 cstack->cs_lflags &= ~CSL_HAD_LOOP; |
|
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|
1299 // If the ":while" evaluates to FALSE or ":for" is past the end of |
|
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|
1300 // the list, show the debug prompt at the ":endwhile"/":endfor" as |
|
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|
1301 // if there was a ":break" in a ":while"/":for" evaluating to |
|
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parents:
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changeset
|
1302 // TRUE. |
| 7 | 1303 if (!skip && !error) |
| 1304 cstack->cs_flags[cstack->cs_idx] |= CSF_TRUE; | |
| 1305 } | |
| 1306 } | |
| 1307 } | |
| 1308 | |
| 1309 /* | |
| 1310 * ":continue" | |
| 1311 */ | |
| 1312 void | |
|
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Christian Brabandt <cb@256bit.org>
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7801
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changeset
|
1313 ex_continue(exarg_T *eap) |
| 7 | 1314 { |
| 1315 int idx; | |
|
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|
1316 cstack_T *cstack = eap->cstack; |
| 7 | 1317 |
| 75 | 1318 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0) |
|
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changeset
|
1319 eap->errmsg = _(e_continue); |
| 7 | 1320 else |
| 1321 { | |
|
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|
1322 // Try to find the matching ":while". This might stop at a try |
|
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diff
changeset
|
1323 // conditional not in its finally clause (which is then to be executed |
|
25202
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Bram Moolenaar <Bram@vim.org>
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changeset
|
1324 // next). Therefore, inactivate all conditionals except the ":while" |
|
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changeset
|
1325 // itself (if reached). |
| 75 | 1326 idx = cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, FALSE); |
| 840 | 1327 if (idx >= 0 && (cstack->cs_flags[idx] & (CSF_WHILE | CSF_FOR))) |
| 7 | 1328 { |
| 79 | 1329 rewind_conditionals(cstack, idx, CSF_TRY, &cstack->cs_trylevel); |
| 7 | 1330 |
| 1331 /* | |
| 75 | 1332 * Set CSL_HAD_CONT, so do_cmdline() will jump back to the |
| 7 | 1333 * matching ":while". |
| 1334 */ | |
|
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|
1335 cstack->cs_lflags |= CSL_HAD_CONT; // let do_cmdline() handle it |
| 7 | 1336 } |
| 1337 else | |
| 1338 { | |
|
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changeset
|
1339 // If a try conditional not in its finally clause is reached first, |
|
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changeset
|
1340 // make the ":continue" pending for execution at the ":endtry". |
| 7 | 1341 cstack->cs_pending[idx] = CSTP_CONTINUE; |
| 1342 report_make_pending(CSTP_CONTINUE, NULL); | |
| 1343 } | |
| 1344 } | |
| 1345 } | |
| 1346 | |
| 1347 /* | |
| 1348 * ":break" | |
| 1349 */ | |
| 1350 void | |
|
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
1351 ex_break(exarg_T *eap) |
| 7 | 1352 { |
| 1353 int idx; | |
|
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|
1354 cstack_T *cstack = eap->cstack; |
| 7 | 1355 |
| 75 | 1356 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0) |
|
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|
1357 eap->errmsg = _(e_break); |
| 7 | 1358 else |
| 1359 { | |
|
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|
1360 // Inactivate conditionals until the matching ":while" or a try |
|
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changeset
|
1361 // conditional not in its finally clause (which is then to be |
|
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|
1362 // executed next) is found. In the latter case, make the ":break" |
|
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|
1363 // pending for execution at the ":endtry". |
| 75 | 1364 idx = cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, TRUE); |
| 840 | 1365 if (idx >= 0 && !(cstack->cs_flags[idx] & (CSF_WHILE | CSF_FOR))) |
| 7 | 1366 { |
| 1367 cstack->cs_pending[idx] = CSTP_BREAK; | |
| 1368 report_make_pending(CSTP_BREAK, NULL); | |
| 1369 } | |
| 1370 } | |
| 1371 } | |
| 1372 | |
| 1373 /* | |
| 75 | 1374 * ":endwhile" and ":endfor" |
| 7 | 1375 */ |
| 1376 void | |
|
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
1377 ex_endwhile(exarg_T *eap) |
| 7 | 1378 { |
|
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|
1379 cstack_T *cstack = eap->cstack; |
|
2bdc2e1f6e1f
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|
1380 int idx; |
|
2bdc2e1f6e1f
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|
1381 char *err; |
|
2bdc2e1f6e1f
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changeset
|
1382 int csf; |
|
2bdc2e1f6e1f
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changeset
|
1383 int fl; |
| 7 | 1384 |
|
25575
9f691e8a74e3
patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
Bram Moolenaar <Bram@vim.org>
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25537
diff
changeset
|
1385 if (cmdmod_error(TRUE)) |
|
24222
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patch 8.2.2652: Vim9: can use command modifier without an effect
Bram Moolenaar <Bram@vim.org>
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changeset
|
1386 return; |
|
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
|
1387 |
| 75 | 1388 if (eap->cmdidx == CMD_endwhile) |
| 1389 { | |
| 1390 err = e_while; | |
| 1391 csf = CSF_WHILE; | |
| 1392 } | |
| 1393 else | |
| 1394 { | |
| 1395 err = e_for; | |
| 1396 csf = CSF_FOR; | |
| 1397 } | |
| 1398 | |
| 1399 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0) | |
|
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diff
changeset
|
1400 eap->errmsg = _(err); |
| 7 | 1401 else |
| 1402 { | |
|
25905
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patch 8.2.3486: illegal memory access with invalid sequence of commands
Bram Moolenaar <Bram@vim.org>
parents:
25889
diff
changeset
|
1403 fl = cstack->cs_flags[cstack->cs_idx]; |
| 75 | 1404 if (!(fl & csf)) |
| 7 | 1405 { |
|
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|
1406 // If we are in a ":while" or ":for" but used the wrong endloop |
|
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changeset
|
1407 // command, do not rewind to the next enclosing ":for"/":while". |
| 75 | 1408 if (fl & CSF_WHILE) |
|
15470
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patch 8.1.0743: giving error messages is not flexible
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parents:
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changeset
|
1409 eap->errmsg = _("E732: Using :endfor with :while"); |
| 75 | 1410 else if (fl & CSF_FOR) |
|
15470
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patch 8.1.0743: giving error messages is not flexible
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changeset
|
1411 eap->errmsg = _("E733: Using :endwhile with :for"); |
| 114 | 1412 } |
| 1413 if (!(fl & (CSF_WHILE | CSF_FOR))) | |
| 1414 { | |
| 1415 if (!(fl & CSF_TRY)) | |
|
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|
1416 eap->errmsg = _(e_endif); |
| 75 | 1417 else if (fl & CSF_FINALLY) |
|
21459
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changeset
|
1418 eap->errmsg = _(e_endtry); |
|
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|
1419 // Try to find the matching ":while" and report what's missing. |
| 7 | 1420 for (idx = cstack->cs_idx; idx > 0; --idx) |
| 1421 { | |
| 75 | 1422 fl = cstack->cs_flags[idx]; |
| 1423 if ((fl & CSF_TRY) && !(fl & CSF_FINALLY)) | |
| 7 | 1424 { |
|
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|
1425 // Give up at a try conditional not in its finally clause. |
|
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changeset
|
1426 // Ignore the ":endwhile"/":endfor". |
|
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changeset
|
1427 eap->errmsg = _(err); |
| 7 | 1428 return; |
| 1429 } | |
| 75 | 1430 if (fl & csf) |
| 7 | 1431 break; |
| 1432 } | |
|
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changeset
|
1433 // Cleanup and rewind all contained (and unclosed) conditionals. |
| 75 | 1434 (void)cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, FALSE); |
| 7 | 1435 rewind_conditionals(cstack, idx, CSF_TRY, &cstack->cs_trylevel); |
| 1436 } | |
| 1437 | |
| 1438 /* | |
| 1439 * When debugging or a breakpoint was encountered, display the debug | |
| 1440 * prompt (if not already done). This shows the user that an | |
| 75 | 1441 * ":endwhile"/":endfor" is executed when the ":while" was not TRUE or |
| 1442 * after a ":break". Handle a ">quit" debug command as if an | |
| 1443 * interrupt had occurred before the ":endwhile"/":endfor". That is, | |
| 1444 * throw an interrupt exception if appropriate. Doing this here | |
| 1445 * prevents that an exception for a parsing error is discarded when | |
| 1446 * throwing the interrupt exception later on. | |
| 7 | 1447 */ |
| 1448 else if (cstack->cs_flags[cstack->cs_idx] & CSF_TRUE | |
| 1449 && !(cstack->cs_flags[cstack->cs_idx] & CSF_ACTIVE) | |
| 1450 && dbg_check_skipped(eap)) | |
| 1451 (void)do_intthrow(cstack); | |
| 1452 | |
|
24232
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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
|
1453 // 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
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changeset
|
1454 // ":while" or ":for". |
| 75 | 1455 cstack->cs_lflags |= CSL_HAD_ENDLOOP; |
| 7 | 1456 } |
| 1457 } | |
| 1458 | |
|
22555
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patch 8.2.1826: Vim9: cannot use a {} block at script level
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diff
changeset
|
1459 /* |
|
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changeset
|
1460 * "{" start of a block in Vim9 script |
|
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|
1461 */ |
|
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diff
changeset
|
1462 void |
|
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changeset
|
1463 ex_block(exarg_T *eap) |
|
7d25264c246c
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changeset
|
1464 { |
|
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patch 8.2.1826: Vim9: cannot use a {} block at script level
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changeset
|
1465 cstack_T *cstack = eap->cstack; |
|
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changeset
|
1466 |
|
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changeset
|
1467 if (cstack->cs_idx == CSTACK_LEN - 1) |
|
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Bram Moolenaar <Bram@vim.org>
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changeset
|
1468 eap->errmsg = _("E579: block nesting too deep"); |
|
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patch 8.2.1826: Vim9: cannot use a {} block at script level
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changeset
|
1469 else |
|
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diff
changeset
|
1470 { |
|
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changeset
|
1471 enter_block(cstack); |
|
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changeset
|
1472 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>
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changeset
|
1473 } |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
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parents:
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diff
changeset
|
1474 } |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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diff
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|
1475 |
|
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patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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changeset
|
1476 /* |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
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changeset
|
1477 * "}" end of a block in Vim9 script |
|
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patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1478 */ |
|
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patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1479 void |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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changeset
|
1480 ex_endblock(exarg_T *eap) |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1481 { |
|
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patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1482 cstack_T *cstack = eap->cstack; |
|
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patch 8.2.1826: Vim9: cannot use a {} block at script level
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changeset
|
1483 |
|
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patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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changeset
|
1484 if (cstack->cs_idx < 0 |
|
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patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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changeset
|
1485 || (cstack->cs_flags[cstack->cs_idx] & CSF_BLOCK) == 0) |
|
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changeset
|
1486 eap->errmsg = _(e_endblock_without_block); |
|
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patch 8.2.1826: Vim9: cannot use a {} block at script level
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changeset
|
1487 else |
|
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patch 8.2.1826: Vim9: cannot use a {} block at script level
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changeset
|
1488 leave_block(cstack); |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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changeset
|
1489 } |
| 7 | 1490 |
|
25521
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patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
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changeset
|
1491 int |
|
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patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
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|
1492 inside_block(exarg_T *eap) |
|
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changeset
|
1493 { |
|
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patch 8.2.3297: cannot use all commands inside a {} block
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changeset
|
1494 cstack_T *cstack = eap->cstack; |
|
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patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
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|
1495 int i; |
|
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
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changeset
|
1496 |
|
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patch 8.2.3297: cannot use all commands inside a {} block
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changeset
|
1497 for (i = 0; i <= cstack->cs_idx; ++i) |
|
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|
1498 if (cstack->cs_flags[cstack->cs_idx] & CSF_BLOCK) |
|
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patch 8.2.3297: cannot use all commands inside a {} block
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changeset
|
1499 return TRUE; |
|
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|
1500 return FALSE; |
|
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|
1501 } |
|
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|
1502 |
| 7 | 1503 /* |
| 1504 * ":throw expr" | |
| 1505 */ | |
| 1506 void | |
|
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commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1507 ex_throw(exarg_T *eap) |
| 7 | 1508 { |
| 1509 char_u *arg = eap->arg; | |
| 1510 char_u *value; | |
| 1511 | |
| 1512 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
|
1513 value = eval_to_string_skip(arg, eap, eap->skip); |
| 7 | 1514 else |
| 1515 { | |
|
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
|
1516 emsg(_(e_argreq)); |
| 7 | 1517 value = NULL; |
| 1518 } | |
| 1519 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
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diff
changeset
|
1520 // On error or when an exception is thrown during argument evaluation, do |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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changeset
|
1521 // not throw. |
| 7 | 1522 if (!eap->skip && value != NULL) |
| 1523 { | |
| 1524 if (throw_exception(value, ET_USER, NULL) == FAIL) | |
| 1525 vim_free(value); | |
| 1526 else | |
| 1527 do_throw(eap->cstack); | |
| 1528 } | |
| 1529 } | |
| 1530 | |
| 1531 /* | |
| 21 | 1532 * Throw the current exception through the specified cstack. Common routine |
| 1533 * for ":throw" (user exception) and error and interrupt exceptions. Also | |
| 1534 * used for rethrowing an uncaught exception. | |
| 7 | 1535 */ |
| 1536 void | |
|
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2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
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changeset
|
1537 do_throw(cstack_T *cstack) |
| 7 | 1538 { |
| 1539 int idx; | |
| 1540 int inactivate_try = FALSE; | |
| 1541 | |
| 1542 /* | |
| 1543 * Cleanup and inactivate up to the next surrounding try conditional that | |
| 1544 * is not in its finally clause. Normally, do not inactivate the try | |
| 1545 * conditional itself, so that its ACTIVE flag can be tested below. But | |
| 1546 * if a previous error or interrupt has not been converted to an exception, | |
| 1547 * inactivate the try conditional, too, as if the conversion had been done, | |
| 21 | 1548 * and reset the did_emsg or got_int flag, so this won't happen again at |
| 1549 * the next surrounding try conditional. | |
| 7 | 1550 */ |
| 1880 | 1551 #ifndef THROW_ON_ERROR_TRUE |
| 7 | 1552 if (did_emsg && !THROW_ON_ERROR) |
| 1553 { | |
| 1554 inactivate_try = TRUE; | |
| 1555 did_emsg = FALSE; | |
| 1556 } | |
| 1880 | 1557 #endif |
| 1558 #ifndef THROW_ON_INTERRUPT_TRUE | |
| 7 | 1559 if (got_int && !THROW_ON_INTERRUPT) |
| 1560 { | |
| 1561 inactivate_try = TRUE; | |
| 1562 got_int = FALSE; | |
| 1563 } | |
| 1880 | 1564 #endif |
| 7 | 1565 idx = cleanup_conditionals(cstack, 0, inactivate_try); |
| 1566 if (idx >= 0) | |
| 1567 { | |
| 1568 /* | |
| 1569 * If this try conditional is active and we are before its first | |
| 21 | 1570 * ":catch", set THROWN so that the ":catch" commands will check |
| 1571 * whether the exception matches. When the exception came from any of | |
| 1572 * the catch clauses, it will be made pending at the ":finally" (if | |
| 1573 * present) and rethrown at the ":endtry". This will also happen if | |
| 1574 * the try conditional is inactive. This is the case when we are | |
| 1575 * throwing an exception due to an error or interrupt on the way from | |
| 1576 * a preceding ":continue", ":break", ":return", ":finish", error or | |
| 1577 * interrupt (not converted to an exception) to the finally clause or | |
| 1578 * from a preceding throw of a user or error or interrupt exception to | |
| 1579 * the matching catch clause or the finally clause. | |
| 7 | 1580 */ |
| 1581 if (!(cstack->cs_flags[idx] & CSF_CAUGHT)) | |
| 1582 { | |
| 1583 if (cstack->cs_flags[idx] & CSF_ACTIVE) | |
| 1584 cstack->cs_flags[idx] |= CSF_THROWN; | |
| 1585 else | |
|
18779
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changeset
|
1586 // THROWN may have already been set for a catchable exception |
|
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Bram Moolenaar <Bram@vim.org>
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changeset
|
1587 // that has been discarded. Ensure it is reset for the new |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
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changeset
|
1588 // exception. |
| 7 | 1589 cstack->cs_flags[idx] &= ~CSF_THROWN; |
| 1590 } | |
| 1591 cstack->cs_flags[idx] &= ~CSF_ACTIVE; | |
| 1592 cstack->cs_exception[idx] = current_exception; | |
| 1593 } | |
| 1594 #if 0 | |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
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changeset
|
1595 // TODO: Add optimization below. Not yet done because of interface |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
1596 // problems to eval.c and ex_cmds2.c. (Servatius) |
| 7 | 1597 else |
| 1598 { | |
| 1599 /* | |
| 1600 * There are no catch clauses to check or finally clauses to execute. | |
| 1601 * End the current script or function. The exception will be rethrown | |
| 1602 * in the caller. | |
| 1603 */ | |
| 1604 if (getline_equal(eap->getline, eap->cookie, get_func_line)) | |
| 1605 current_funccal->returned = TRUE; | |
| 1606 elseif (eap->get_func_line == getsourceline) | |
| 1607 ((struct source_cookie *)eap->cookie)->finished = TRUE; | |
| 1608 } | |
| 1609 #endif | |
| 1610 | |
| 1611 did_throw = TRUE; | |
| 1612 } | |
| 1613 | |
| 1614 /* | |
| 1615 * ":try" | |
| 1616 */ | |
| 1617 void | |
|
7819
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Christian Brabandt <cb@256bit.org>
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7801
diff
changeset
|
1618 ex_try(exarg_T *eap) |
| 7 | 1619 { |
| 1620 int skip; | |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
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changeset
|
1621 cstack_T *cstack = eap->cstack; |
| 7 | 1622 |
|
25575
9f691e8a74e3
patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1623 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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diff
changeset
|
1624 return; |
|
a2e6029d354e
patch 8.2.2652: Vim9: can use command modifier without an effect
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1625 |
| 7 | 1626 if (cstack->cs_idx == CSTACK_LEN - 1) |
|
21459
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patch 8.2.1280: Ex command error cannot contain an argument
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1627 eap->errmsg = _("E601: :try nesting too deep"); |
| 7 | 1628 else |
| 1629 { | |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1630 enter_block(cstack); |
| 7 | 1631 ++cstack->cs_trylevel; |
| 1632 cstack->cs_flags[cstack->cs_idx] = CSF_TRY; | |
| 1633 cstack->cs_pending[cstack->cs_idx] = CSTP_NONE; | |
| 1634 | |
| 1635 /* | |
| 1636 * Don't do something after an error, interrupt, or throw, or when there | |
| 1637 * is a surrounding conditional and it was not active. | |
| 1638 */ | |
| 1639 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0 | |
| 1640 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE)); | |
| 1641 | |
| 1642 if (!skip) | |
| 1643 { | |
|
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1644 // Set ACTIVE and TRUE. TRUE means that the corresponding ":catch" |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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changeset
|
1645 // commands should check for a match if an exception is thrown and |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
1646 // that the finally clause needs to be executed. |
| 7 | 1647 cstack->cs_flags[cstack->cs_idx] |= CSF_ACTIVE | CSF_TRUE; |
| 1648 | |
| 1649 /* | |
| 1650 * ":silent!", even when used in a try conditional, disables | |
| 1651 * displaying of error messages and conversion of errors to | |
| 1652 * exceptions. When the silent commands again open a try | |
| 1653 * conditional, save "emsg_silent" and reset it so that errors are | |
| 1654 * again converted to exceptions. The value is restored when that | |
| 1655 * try conditional is left. If it is left normally, the commands | |
| 1656 * following the ":endtry" are again silent. If it is left by | |
| 1657 * a ":continue", ":break", ":return", or ":finish", the commands | |
| 1658 * executed next are again silent. If it is left due to an | |
| 1659 * aborting error, an interrupt, or an exception, restoring | |
| 1660 * "emsg_silent" does not matter since we are already in the | |
| 1661 * aborting state and/or the exception has already been thrown. | |
| 1662 * The effect is then just freeing the memory that was allocated | |
| 1663 * to save the value. | |
| 1664 */ | |
| 1665 if (emsg_silent) | |
| 1666 { | |
| 1667 eslist_T *elem; | |
| 1668 | |
|
16825
ce04ebdf26b8
patch 8.1.1414: alloc() returning "char_u *" causes a lot of type casts
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diff
changeset
|
1669 elem = ALLOC_ONE(struct eslist_elem); |
| 7 | 1670 if (elem == NULL) |
|
25306
078edc1821bf
patch 8.2.3190: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
25202
diff
changeset
|
1671 emsg(_(e_out_of_memory)); |
| 7 | 1672 else |
| 1673 { | |
| 1674 elem->saved_emsg_silent = emsg_silent; | |
| 1675 elem->next = cstack->cs_emsg_silent_list; | |
| 1676 cstack->cs_emsg_silent_list = elem; | |
| 1677 cstack->cs_flags[cstack->cs_idx] |= CSF_SILENT; | |
| 1678 emsg_silent = 0; | |
| 1679 } | |
| 1680 } | |
| 1681 } | |
| 1682 | |
| 1683 } | |
| 1684 } | |
| 1685 | |
| 1686 /* | |
| 1687 * ":catch /{pattern}/" and ":catch" | |
| 1688 */ | |
| 1689 void | |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1690 ex_catch(exarg_T *eap) |
| 7 | 1691 { |
| 1692 int idx = 0; | |
| 1693 int give_up = FALSE; | |
| 1694 int skip = FALSE; | |
| 1695 int caught = FALSE; | |
| 1696 char_u *end; | |
| 1697 int save_char = 0; | |
| 1698 char_u *save_cpo; | |
| 1699 regmatch_T regmatch; | |
| 1700 int prev_got_int; | |
|
18904
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changeset
|
1701 cstack_T *cstack = eap->cstack; |
| 7 | 1702 char_u *pat; |
| 1703 | |
|
25575
9f691e8a74e3
patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
Bram Moolenaar <Bram@vim.org>
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changeset
|
1704 if (cmdmod_error(FALSE)) |
|
24222
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patch 8.2.2652: Vim9: can use command modifier without an effect
Bram Moolenaar <Bram@vim.org>
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changeset
|
1705 return; |
|
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changeset
|
1706 |
| 7 | 1707 if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0) |
| 1708 { | |
|
21459
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patch 8.2.1280: Ex command error cannot contain an argument
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1709 eap->errmsg = _(e_catch); |
| 7 | 1710 give_up = TRUE; |
| 1711 } | |
| 1712 else | |
| 1713 { | |
| 1714 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) | |
| 1715 { | |
|
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parents:
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diff
changeset
|
1716 // Report what's missing if the matching ":try" is not in its |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1717 // finally clause. |
| 75 | 1718 eap->errmsg = get_end_emsg(cstack); |
| 7 | 1719 skip = TRUE; |
| 1720 } | |
| 1721 for (idx = cstack->cs_idx; idx > 0; --idx) | |
| 1722 if (cstack->cs_flags[idx] & CSF_TRY) | |
| 1723 break; | |
|
25124
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patch 8.2.3099: Vim9: missing catch/finally not reported at script level
Bram Moolenaar <Bram@vim.org>
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24369
diff
changeset
|
1724 if (cstack->cs_flags[idx] & CSF_TRY) |
|
075790758d11
patch 8.2.3099: Vim9: missing catch/finally not reported at script level
Bram Moolenaar <Bram@vim.org>
parents:
24369
diff
changeset
|
1725 cstack->cs_flags[idx] |= CSF_CATCH; |
| 7 | 1726 if (cstack->cs_flags[idx] & CSF_FINALLY) |
| 1727 { | |
|
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
|
1728 // Give up for a ":catch" after ":finally" and ignore it. |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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diff
changeset
|
1729 // Just parse. |
|
21459
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patch 8.2.1280: Ex command error cannot contain an argument
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diff
changeset
|
1730 eap->errmsg = _("E604: :catch after :finally"); |
| 7 | 1731 give_up = TRUE; |
| 1732 } | |
| 79 | 1733 else |
| 75 | 1734 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR, |
| 1735 &cstack->cs_looplevel); | |
| 7 | 1736 } |
| 1737 | |
|
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|
1738 if (ends_excmd2(eap->cmd, eap->arg)) // no argument, catch all errors |
| 7 | 1739 { |
| 1740 pat = (char_u *)".*"; | |
| 1741 end = NULL; | |
| 1742 eap->nextcmd = find_nextcmd(eap->arg); | |
| 1743 } | |
| 1744 else | |
| 1745 { | |
| 1746 pat = eap->arg + 1; | |
|
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|
1747 end = skip_regexp_err(pat, *eap->arg, TRUE); |
|
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1748 if (end == NULL) |
|
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|
1749 give_up = TRUE; |
| 7 | 1750 } |
| 1751 | |
| 1752 if (!give_up) | |
| 1753 { | |
| 1754 /* | |
| 1755 * Don't do something when no exception has been thrown or when the | |
| 1756 * corresponding try block never got active (because of an inactive | |
| 1757 * surrounding conditional or after an error or interrupt or throw). | |
| 1758 */ | |
| 1759 if (!did_throw || !(cstack->cs_flags[idx] & CSF_TRUE)) | |
| 1760 skip = TRUE; | |
| 1761 | |
| 1762 /* | |
| 1763 * Check for a match only if an exception is thrown but not caught by | |
| 1764 * a previous ":catch". An exception that has replaced a discarded | |
| 1765 * exception is not checked (THROWN is not set then). | |
| 1766 */ | |
| 1767 if (!skip && (cstack->cs_flags[idx] & CSF_THROWN) | |
| 1768 && !(cstack->cs_flags[idx] & CSF_CAUGHT)) | |
| 1769 { | |
|
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1770 if (end != NULL && *end != NUL |
|
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|
1771 && !ends_excmd2(end, skipwhite(end + 1))) |
| 7 | 1772 { |
|
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|
1773 semsg(_(e_trailing_arg), end); |
| 7 | 1774 return; |
| 1775 } | |
| 1776 | |
|
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1777 // When debugging or a breakpoint was encountered, display the |
|
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|
1778 // debug prompt (if not already done) before checking for a match. |
|
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1779 // This is a helpful hint for the user when the regular expression |
|
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1780 // matching fails. Handle a ">quit" debug command as if an |
|
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1781 // interrupt had occurred before the ":catch". That is, discard |
|
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1782 // the original exception, replace it by an interrupt exception, |
|
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1783 // and don't catch it in this try block. |
| 7 | 1784 if (!dbg_check_skipped(eap) || !do_intthrow(cstack)) |
| 1785 { | |
|
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1786 // Terminate the pattern and avoid the 'l' flag in 'cpoptions' |
|
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1787 // while compiling it. |
| 7 | 1788 if (end != NULL) |
| 1789 { | |
| 1790 save_char = *end; | |
| 1791 *end = NUL; | |
| 1792 } | |
| 1793 save_cpo = p_cpo; | |
|
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1794 p_cpo = empty_option; |
|
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1795 // Disable error messages, it will make current_exception |
|
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1796 // invalid. |
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1797 ++emsg_off; |
| 1333 | 1798 regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING); |
|
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|
1799 --emsg_off; |
| 7 | 1800 regmatch.rm_ic = FALSE; |
| 1801 if (end != NULL) | |
| 1802 *end = save_char; | |
| 1803 p_cpo = save_cpo; | |
| 1804 if (regmatch.regprog == NULL) | |
|
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1805 semsg(_(e_invarg2), pat); |
| 7 | 1806 else |
| 1807 { | |
| 1808 /* | |
| 1809 * Save the value of got_int and reset it. We don't want | |
| 1810 * a previous interruption cancel matching, only hitting | |
| 1811 * CTRL-C while matching should abort it. | |
| 1812 */ | |
| 1813 prev_got_int = got_int; | |
| 1814 got_int = FALSE; | |
|
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1815 caught = vim_regexec_nl(®match, |
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1816 (char_u *)current_exception->value, (colnr_T)0); |
| 7 | 1817 got_int |= prev_got_int; |
|
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1818 vim_regfree(regmatch.regprog); |
| 7 | 1819 } |
| 1820 } | |
| 1821 } | |
| 1822 | |
| 1823 if (caught) | |
| 1824 { | |
|
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1825 // Make this ":catch" clause active and reset did_emsg, got_int, |
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1826 // and did_throw. Put the exception on the caught stack. |
| 7 | 1827 cstack->cs_flags[idx] |= CSF_ACTIVE | CSF_CAUGHT; |
| 1828 did_emsg = got_int = did_throw = FALSE; | |
| 1829 catch_exception((except_T *)cstack->cs_exception[idx]); | |
|
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1830 // It's mandatory that the current exception is stored in the cstack |
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1831 // so that it can be discarded at the next ":catch", ":finally", or |
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1832 // ":endtry" or when the catch clause is left by a ":continue", |
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1833 // ":break", ":return", ":finish", error, interrupt, or another |
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1834 // exception. |
| 7 | 1835 if (cstack->cs_exception[cstack->cs_idx] != current_exception) |
|
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1836 internal_error("ex_catch()"); |
| 7 | 1837 } |
| 1838 else | |
| 1839 { | |
| 1840 /* | |
| 1841 * If there is a preceding catch clause and it caught the exception, | |
| 1842 * finish the exception now. This happens also after errors except | |
| 1843 * when this ":catch" was after the ":finally" or not within | |
| 1844 * a ":try". Make the try conditional inactive so that the | |
| 1845 * following catch clauses are skipped. On an error or interrupt | |
| 1846 * after the preceding try block or catch clause was left by | |
| 1847 * a ":continue", ":break", ":return", or ":finish", discard the | |
| 1848 * pending action. | |
| 1849 */ | |
| 1850 cleanup_conditionals(cstack, CSF_TRY, TRUE); | |
| 1851 } | |
| 1852 } | |
| 1853 | |
| 1854 if (end != NULL) | |
| 1855 eap->nextcmd = find_nextcmd(end); | |
| 1856 } | |
| 1857 | |
| 1858 /* | |
| 1859 * ":finally" | |
| 1860 */ | |
| 1861 void | |
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1862 ex_finally(exarg_T *eap) |
| 7 | 1863 { |
| 1864 int idx; | |
| 1865 int skip = FALSE; | |
| 1866 int pending = CSTP_NONE; | |
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1867 cstack_T *cstack = eap->cstack; |
| 7 | 1868 |
|
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1869 if (cmdmod_error(FALSE)) |
|
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1870 return; |
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1871 |
| 7 | 1872 if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0) |
|
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1873 eap->errmsg = _(e_finally); |
| 7 | 1874 else |
| 1875 { | |
| 1876 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) | |
| 1877 { | |
| 75 | 1878 eap->errmsg = get_end_emsg(cstack); |
| 7 | 1879 for (idx = cstack->cs_idx - 1; idx > 0; --idx) |
| 1880 if (cstack->cs_flags[idx] & CSF_TRY) | |
| 1881 break; | |
|
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1882 // Make this error pending, so that the commands in the following |
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1883 // finally clause can be executed. This overrules also a pending |
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1884 // ":continue", ":break", ":return", or ":finish". |
| 7 | 1885 pending = CSTP_ERROR; |
| 1886 } | |
| 1887 else | |
| 1888 idx = cstack->cs_idx; | |
| 1889 | |
| 1890 if (cstack->cs_flags[idx] & CSF_FINALLY) | |
| 1891 { | |
|
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1892 // Give up for a multiple ":finally" and ignore it. |
|
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1893 eap->errmsg = _(e_finally_dup); |
| 7 | 1894 return; |
| 1895 } | |
| 79 | 1896 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR, |
| 75 | 1897 &cstack->cs_looplevel); |
| 7 | 1898 |
| 1899 /* | |
| 1900 * Don't do something when the corresponding try block never got active | |
| 1901 * (because of an inactive surrounding conditional or after an error or | |
| 1902 * interrupt or throw) or for a ":finally" without ":try" or a multiple | |
| 1903 * ":finally". After every other error (did_emsg or the conditional | |
| 1904 * errors detected above) or after an interrupt (got_int) or an | |
| 1905 * exception (did_throw), the finally clause must be executed. | |
| 1906 */ | |
| 1907 skip = !(cstack->cs_flags[cstack->cs_idx] & CSF_TRUE); | |
| 1908 | |
| 1909 if (!skip) | |
| 1910 { | |
|
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1911 // When debugging or a breakpoint was encountered, display the |
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1912 // debug prompt (if not already done). The user then knows that the |
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1913 // finally clause is executed. |
| 7 | 1914 if (dbg_check_skipped(eap)) |
| 1915 { | |
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1916 // Handle a ">quit" debug command as if an interrupt had |
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1917 // occurred before the ":finally". That is, discard the |
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1918 // original exception and replace it by an interrupt |
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1919 // exception. |
| 7 | 1920 (void)do_intthrow(cstack); |
| 1921 } | |
| 1922 | |
| 1923 /* | |
| 1924 * If there is a preceding catch clause and it caught the exception, | |
| 1925 * finish the exception now. This happens also after errors except | |
| 1926 * when this is a multiple ":finally" or one not within a ":try". | |
| 1927 * After an error or interrupt, this also discards a pending | |
| 1928 * ":continue", ":break", ":finish", or ":return" from the preceding | |
| 1929 * try block or catch clause. | |
| 1930 */ | |
| 1931 cleanup_conditionals(cstack, CSF_TRY, FALSE); | |
| 1932 | |
| 1933 /* | |
| 1934 * Make did_emsg, got_int, did_throw pending. If set, they overrule | |
| 1935 * a pending ":continue", ":break", ":return", or ":finish". Then | |
| 1936 * we have particularly to discard a pending return value (as done | |
| 1937 * by the call to cleanup_conditionals() above when did_emsg or | |
| 1938 * got_int is set). The pending values are restored by the | |
| 1939 * ":endtry", except if there is a new error, interrupt, exception, | |
| 1940 * ":continue", ":break", ":return", or ":finish" in the following | |
| 75 | 1941 * finally clause. A missing ":endwhile", ":endfor" or ":endif" |
| 1942 * detected here is treated as if did_emsg and did_throw had | |
| 1943 * already been set, respectively in case that the error is not | |
| 1944 * converted to an exception, did_throw had already been unset. | |
| 1945 * We must not set did_emsg here since that would suppress the | |
| 1946 * error message. | |
| 7 | 1947 */ |
| 1948 if (pending == CSTP_ERROR || did_emsg || got_int || did_throw) | |
| 1949 { | |
| 1950 if (cstack->cs_pending[cstack->cs_idx] == CSTP_RETURN) | |
| 1951 { | |
| 1952 report_discard_pending(CSTP_RETURN, | |
| 68 | 1953 cstack->cs_rettv[cstack->cs_idx]); |
| 1954 discard_pending_return(cstack->cs_rettv[cstack->cs_idx]); | |
| 7 | 1955 } |
| 1956 if (pending == CSTP_ERROR && !did_emsg) | |
| 1957 pending |= (THROW_ON_ERROR) ? CSTP_THROW : 0; | |
| 1958 else | |
| 1959 pending |= did_throw ? CSTP_THROW : 0; | |
| 1960 pending |= did_emsg ? CSTP_ERROR : 0; | |
| 1961 pending |= got_int ? CSTP_INTERRUPT : 0; | |
| 1962 cstack->cs_pending[cstack->cs_idx] = pending; | |
| 1963 | |
|
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1964 // It's mandatory that the current exception is stored in the |
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1965 // cstack so that it can be rethrown at the ":endtry" or be |
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1966 // discarded if the finally clause is left by a ":continue", |
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1967 // ":break", ":return", ":finish", error, interrupt, or another |
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1968 // exception. When emsg() is called for a missing ":endif" or |
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1969 // a missing ":endwhile"/":endfor" detected here, the |
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1970 // exception will be discarded. |
| 79 | 1971 if (did_throw && cstack->cs_exception[cstack->cs_idx] |
| 1972 != current_exception) | |
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1973 internal_error("ex_finally()"); |
| 7 | 1974 } |
| 1975 | |
| 1976 /* | |
| 75 | 1977 * Set CSL_HAD_FINA, so do_cmdline() will reset did_emsg, |
| 22 | 1978 * got_int, and did_throw and make the finally clause active. |
| 1979 * This will happen after emsg() has been called for a missing | |
| 75 | 1980 * ":endif" or a missing ":endwhile"/":endfor" detected here, so |
| 1981 * that the following finally clause will be executed even then. | |
| 7 | 1982 */ |
| 75 | 1983 cstack->cs_lflags |= CSL_HAD_FINA; |
| 7 | 1984 } |
| 1985 } | |
| 1986 } | |
| 1987 | |
| 1988 /* | |
| 1989 * ":endtry" | |
| 1990 */ | |
| 1991 void | |
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1992 ex_endtry(exarg_T *eap) |
| 7 | 1993 { |
| 1994 int idx; | |
| 1995 int skip; | |
| 1996 int rethrow = FALSE; | |
| 1997 int pending = CSTP_NONE; | |
| 68 | 1998 void *rettv = NULL; |
|
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1999 cstack_T *cstack = eap->cstack; |
| 7 | 2000 |
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patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
Bram Moolenaar <Bram@vim.org>
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|
2001 if (cmdmod_error(FALSE)) |
|
24222
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patch 8.2.2652: Vim9: can use command modifier without an effect
Bram Moolenaar <Bram@vim.org>
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|
2002 return; |
|
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patch 8.2.2652: Vim9: can use command modifier without an effect
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|
2003 |
| 7 | 2004 if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0) |
|
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a422bd80b434
patch 8.2.1280: Ex command error cannot contain an argument
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
2005 eap->errmsg = _(e_no_endtry); |
| 7 | 2006 else |
| 2007 { | |
| 2008 /* | |
| 2009 * Don't do something after an error, interrupt or throw in the try | |
| 2010 * block, catch clause, or finally clause preceding this ":endtry" or | |
| 2011 * when an error or interrupt occurred after a ":continue", ":break", | |
| 2012 * ":return", or ":finish" in a try block or catch clause preceding this | |
| 2013 * ":endtry" or when the try block never got active (because of an | |
| 2014 * inactive surrounding conditional or after an error or interrupt or | |
| 2015 * throw) or when there is a surrounding conditional and it has been | |
| 2016 * made inactive by a ":continue", ":break", ":return", or ":finish" in | |
| 2017 * the finally clause. The latter case need not be tested since then | |
| 2018 * anything pending has already been discarded. */ | |
|
25124
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diff
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|
2019 skip = did_emsg || got_int || did_throw |
|
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|
2020 || !(cstack->cs_flags[cstack->cs_idx] & CSF_TRUE); |
| 7 | 2021 |
| 2022 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) | |
| 2023 { | |
| 75 | 2024 eap->errmsg = get_end_emsg(cstack); |
|
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Bram Moolenaar <Bram@vim.org>
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|
2025 |
|
18779
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Bram Moolenaar <Bram@vim.org>
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|
2026 // Find the matching ":try" and report what's missing. |
| 7 | 2027 idx = cstack->cs_idx; |
| 2028 do | |
| 2029 --idx; | |
| 2030 while (idx > 0 && !(cstack->cs_flags[idx] & CSF_TRY)); | |
| 75 | 2031 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR, |
| 2032 &cstack->cs_looplevel); | |
| 7 | 2033 skip = TRUE; |
| 2034 | |
| 2035 /* | |
| 2036 * If an exception is being thrown, discard it to prevent it from | |
| 2037 * being rethrown at the end of this function. It would be | |
| 2038 * discarded by the error message, anyway. Resets did_throw. | |
| 2039 * This does not affect the script termination due to the error | |
| 2040 * since "trylevel" is decremented after emsg() has been called. | |
| 2041 */ | |
| 2042 if (did_throw) | |
| 2043 discard_current_exception(); | |
|
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patch 8.2.3486: illegal memory access with invalid sequence of commands
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|
2044 |
|
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|
2045 // report eap->errmsg, also when there already was an error |
|
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Bram Moolenaar <Bram@vim.org>
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|
2046 did_emsg = FALSE; |
| 7 | 2047 } |
| 2048 else | |
| 2049 { | |
| 2050 idx = cstack->cs_idx; | |
| 2051 | |
|
25537
e0d6268c153a
patch 8.2.3305: Vim9: :finally in skipped block not handled correctly
Bram Moolenaar <Bram@vim.org>
parents:
25521
diff
changeset
|
2052 // Check the flags only when not in a skipped block. |
|
e0d6268c153a
patch 8.2.3305: Vim9: :finally in skipped block not handled correctly
Bram Moolenaar <Bram@vim.org>
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25521
diff
changeset
|
2053 if (!skip && in_vim9script() |
|
25124
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patch 8.2.3099: Vim9: missing catch/finally not reported at script level
Bram Moolenaar <Bram@vim.org>
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|
2054 && (cstack->cs_flags[idx] & (CSF_CATCH|CSF_FINALLY)) == 0) |
|
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Bram Moolenaar <Bram@vim.org>
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|
2055 { |
|
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patch 8.2.3099: Vim9: missing catch/finally not reported at script level
Bram Moolenaar <Bram@vim.org>
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|
2056 // try/endtry without any catch or finally: give an error and |
|
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Bram Moolenaar <Bram@vim.org>
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|
2057 // continue. |
|
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|
2058 eap->errmsg = _(e_missing_catch_or_finally); |
|
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|
2059 } |
|
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Bram Moolenaar <Bram@vim.org>
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|
2060 |
| 7 | 2061 /* |
| 2062 * If we stopped with the exception currently being thrown at this | |
| 2063 * try conditional since we didn't know that it doesn't have | |
| 2064 * a finally clause, we need to rethrow it after closing the try | |
| 2065 * conditional. | |
| 2066 */ | |
| 2067 if (did_throw && (cstack->cs_flags[idx] & CSF_TRUE) | |
| 2068 && !(cstack->cs_flags[idx] & CSF_FINALLY)) | |
| 2069 rethrow = TRUE; | |
| 2070 } | |
| 2071 | |
|
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|
2072 // If there was no finally clause, show the user when debugging or |
|
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|
2073 // a breakpoint was encountered that the end of the try conditional has |
|
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|
2074 // been reached: display the debug prompt (if not already done). Do |
|
8f05b3cf8557
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|
2075 // this on normal control flow or when an exception was thrown, but not |
|
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|
2076 // on an interrupt or error not converted to an exception or when |
|
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|
2077 // a ":break", ":continue", ":return", or ":finish" is pending. These |
|
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|
2078 // actions are carried out immediately. |
| 7 | 2079 if ((rethrow || (!skip |
| 2080 && !(cstack->cs_flags[idx] & CSF_FINALLY) | |
| 2081 && !cstack->cs_pending[idx])) | |
| 2082 && dbg_check_skipped(eap)) | |
| 2083 { | |
|
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|
2084 // Handle a ">quit" debug command as if an interrupt had occurred |
|
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|
2085 // before the ":endtry". That is, throw an interrupt exception and |
|
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|
2086 // set "skip" and "rethrow". |
| 7 | 2087 if (got_int) |
| 2088 { | |
| 2089 skip = TRUE; | |
| 2090 (void)do_intthrow(cstack); | |
|
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|
2091 // The do_intthrow() call may have reset did_throw or |
|
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|
2092 // cstack->cs_pending[idx]. |
| 7 | 2093 rethrow = FALSE; |
| 2094 if (did_throw && !(cstack->cs_flags[idx] & CSF_FINALLY)) | |
| 2095 rethrow = TRUE; | |
| 2096 } | |
| 2097 } | |
| 2098 | |
| 2099 /* | |
| 2100 * If a ":return" is pending, we need to resume it after closing the | |
| 2101 * try conditional; remember the return value. If there was a finally | |
| 2102 * clause making an exception pending, we need to rethrow it. Make it | |
| 2103 * the exception currently being thrown. | |
| 2104 */ | |
| 2105 if (!skip) | |
| 2106 { | |
| 2107 pending = cstack->cs_pending[idx]; | |
| 2108 cstack->cs_pending[idx] = CSTP_NONE; | |
| 2109 if (pending == CSTP_RETURN) | |
| 68 | 2110 rettv = cstack->cs_rettv[idx]; |
| 7 | 2111 else if (pending & CSTP_THROW) |
| 2112 current_exception = cstack->cs_exception[idx]; | |
| 2113 } | |
| 2114 | |
| 2115 /* | |
| 2116 * Discard anything pending on an error, interrupt, or throw in the | |
| 2117 * finally clause. If there was no ":finally", discard a pending | |
| 2118 * ":continue", ":break", ":return", or ":finish" if an error or | |
| 2119 * interrupt occurred afterwards, but before the ":endtry" was reached. | |
| 2120 * If an exception was caught by the last of the catch clauses and there | |
| 2121 * was no finally clause, finish the exception now. This happens also | |
| 2122 * after errors except when this ":endtry" is not within a ":try". | |
| 2123 * Restore "emsg_silent" if it has been reset by this try conditional. | |
| 2124 */ | |
| 840 | 2125 (void)cleanup_conditionals(cstack, CSF_TRY | CSF_SILENT, TRUE); |
| 7 | 2126 |
|
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|
2127 if (cstack->cs_idx >= 0 |
|
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Bram Moolenaar <Bram@vim.org>
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|
2128 && (cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) |
|
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2129 leave_block(cstack); |
| 7 | 2130 --cstack->cs_trylevel; |
| 2131 | |
| 2132 if (!skip) | |
| 2133 { | |
| 2134 report_resume_pending(pending, | |
| 68 | 2135 (pending == CSTP_RETURN) ? rettv : |
| 7 | 2136 (pending & CSTP_THROW) ? (void *)current_exception : NULL); |
| 2137 switch (pending) | |
| 2138 { | |
| 2139 case CSTP_NONE: | |
| 2140 break; | |
| 2141 | |
|
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changeset
|
2142 // Reactivate a pending ":continue", ":break", ":return", |
|
8f05b3cf8557
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|
2143 // ":finish" from the try block or a catch clause of this try |
|
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|
2144 // conditional. This is skipped, if there was an error in an |
|
8f05b3cf8557
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changeset
|
2145 // (unskipped) conditional command or an interrupt afterwards |
|
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|
2146 // or if the finally clause is present and executed a new error, |
|
8f05b3cf8557
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changeset
|
2147 // interrupt, throw, ":continue", ":break", ":return", or |
|
8f05b3cf8557
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parents:
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diff
changeset
|
2148 // ":finish". |
| 7 | 2149 case CSTP_CONTINUE: |
| 2150 ex_continue(eap); | |
| 2151 break; | |
| 2152 case CSTP_BREAK: | |
| 2153 ex_break(eap); | |
| 2154 break; | |
| 2155 case CSTP_RETURN: | |
| 68 | 2156 do_return(eap, FALSE, FALSE, rettv); |
| 7 | 2157 break; |
| 2158 case CSTP_FINISH: | |
| 2159 do_finish(eap, FALSE); | |
| 2160 break; | |
| 2161 | |
|
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changeset
|
2162 // When the finally clause was entered due to an error, |
|
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diff
changeset
|
2163 // interrupt or throw (as opposed to a ":continue", ":break", |
|
8f05b3cf8557
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parents:
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changeset
|
2164 // ":return", or ":finish"), restore the pending values of |
|
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changeset
|
2165 // did_emsg, got_int, and did_throw. This is skipped, if there |
|
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diff
changeset
|
2166 // was a new error, interrupt, throw, ":continue", ":break", |
|
8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2167 // ":return", or ":finish". in the finally clause. |
| 7 | 2168 default: |
| 2169 if (pending & CSTP_ERROR) | |
| 2170 did_emsg = TRUE; | |
| 2171 if (pending & CSTP_INTERRUPT) | |
| 2172 got_int = TRUE; | |
| 2173 if (pending & CSTP_THROW) | |
| 2174 rethrow = TRUE; | |
| 2175 break; | |
| 2176 } | |
| 2177 } | |
| 2178 | |
| 2179 if (rethrow) | |
|
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|
2180 // Rethrow the current exception (within this cstack). |
| 7 | 2181 do_throw(cstack); |
| 2182 } | |
| 2183 } | |
| 2184 | |
| 2185 /* | |
| 36 | 2186 * enter_cleanup() and leave_cleanup() |
| 2187 * | |
| 2188 * Functions to be called before/after invoking a sequence of autocommands for | |
| 2189 * cleanup for a failed command. (Failure means here that a call to emsg() | |
| 2190 * has been made, an interrupt occurred, or there is an uncaught exception | |
| 2191 * from a previous autocommand execution of the same command.) | |
| 24 | 2192 * |
| 36 | 2193 * Call enter_cleanup() with a pointer to a cleanup_T and pass the same |
| 2194 * pointer to leave_cleanup(). The cleanup_T structure stores the pending | |
| 2195 * error/interrupt/exception state. | |
| 2196 */ | |
| 2197 | |
| 2198 /* | |
| 2199 * This function works a bit like ex_finally() except that there was not | |
| 2200 * actually an extra try block around the part that failed and an error or | |
| 2201 * interrupt has not (yet) been converted to an exception. This function | |
| 2202 * saves the error/interrupt/ exception state and prepares for the call to | |
| 2203 * do_cmdline() that is going to be made for the cleanup autocommand | |
| 2204 * execution. | |
| 24 | 2205 */ |
| 2206 void | |
|
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
2207 enter_cleanup(cleanup_T *csp) |
| 24 | 2208 { |
| 2209 int pending = CSTP_NONE; | |
| 2210 | |
| 2211 /* | |
| 2212 * Postpone did_emsg, got_int, did_throw. The pending values will be | |
| 2213 * restored by leave_cleanup() except if there was an aborting error, | |
| 2214 * interrupt, or uncaught exception after this function ends. | |
| 2215 */ | |
| 2216 if (did_emsg || got_int || did_throw || need_rethrow) | |
| 2217 { | |
| 2218 csp->pending = (did_emsg ? CSTP_ERROR : 0) | |
| 2219 | (got_int ? CSTP_INTERRUPT : 0) | |
| 2220 | (did_throw ? CSTP_THROW : 0) | |
| 2221 | (need_rethrow ? CSTP_THROW : 0); | |
| 2222 | |
|
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|
2223 // If we are currently throwing an exception (did_throw), save it as |
|
8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
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|
2224 // well. On an error not yet converted to an exception, update |
|
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changeset
|
2225 // "force_abort" and reset "cause_abort" (as do_errthrow() would do). |
|
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|
2226 // This is needed for the do_cmdline() call that is going to be made |
|
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changeset
|
2227 // for autocommand execution. We need not save *msg_list because |
|
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parents:
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diff
changeset
|
2228 // there is an extra instance for every call of do_cmdline(), anyway. |
| 24 | 2229 if (did_throw || need_rethrow) |
|
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diff
changeset
|
2230 { |
| 24 | 2231 csp->exception = current_exception; |
|
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2232 current_exception = NULL; |
|
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changeset
|
2233 } |
| 24 | 2234 else |
| 2235 { | |
| 2236 csp->exception = NULL; | |
| 2237 if (did_emsg) | |
| 2238 { | |
| 2239 force_abort |= cause_abort; | |
| 2240 cause_abort = FALSE; | |
| 2241 } | |
| 2242 } | |
| 2243 did_emsg = got_int = did_throw = need_rethrow = FALSE; | |
| 2244 | |
|
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|
2245 // Report if required by the 'verbose' option or when debugging. |
| 24 | 2246 report_make_pending(pending, csp->exception); |
| 2247 } | |
| 2248 else | |
| 2249 { | |
| 2250 csp->pending = CSTP_NONE; | |
| 2251 csp->exception = NULL; | |
| 2252 } | |
| 2253 } | |
| 2254 | |
| 2255 /* | |
| 36 | 2256 * See comment above enter_cleanup() for how this function is used. |
| 2257 * | |
| 2258 * This function is a bit like ex_endtry() except that there was not actually | |
| 2259 * an extra try block around the part that failed and an error or interrupt | |
| 2260 * had not (yet) been converted to an exception when the cleanup autocommand | |
| 2261 * sequence was invoked. | |
| 2262 * | |
| 2263 * This function has to be called with the address of the cleanup_T structure | |
| 2264 * filled by enter_cleanup() as an argument; it restores the error/interrupt/ | |
| 2265 * exception state saved by that function - except there was an aborting | |
| 2266 * error, an interrupt or an uncaught exception during execution of the | |
| 2267 * cleanup autocommands. In the latter case, the saved error/interrupt/ | |
| 2268 * exception state is discarded. | |
| 24 | 2269 */ |
| 2270 void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2271 leave_cleanup(cleanup_T *csp) |
| 24 | 2272 { |
| 2273 int pending = csp->pending; | |
| 2274 | |
|
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2275 if (pending == CSTP_NONE) // nothing to do |
| 24 | 2276 return; |
| 2277 | |
|
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2278 // If there was an aborting error, an interrupt, or an uncaught exception |
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2279 // after the corresponding call to enter_cleanup(), discard what has been |
|
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2280 // made pending by it. Report this to the user if required by the |
|
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|
2281 // 'verbose' option or when debugging. |
| 24 | 2282 if (aborting() || need_rethrow) |
| 2283 { | |
| 2284 if (pending & CSTP_THROW) | |
|
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|
2285 // Cancel the pending exception (includes report). |
| 24 | 2286 discard_exception((except_T *)csp->exception, FALSE); |
| 2287 else | |
| 2288 report_discard_pending(pending, NULL); | |
| 2289 | |
|
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changeset
|
2290 // If an error was about to be converted to an exception when |
|
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changeset
|
2291 // enter_cleanup() was called, free the message list. |
| 1046 | 2292 if (msg_list != NULL) |
| 5517 | 2293 free_global_msglist(); |
| 24 | 2294 } |
| 2295 | |
| 2296 /* | |
| 2297 * If there was no new error, interrupt, or throw between the calls | |
| 2298 * to enter_cleanup() and leave_cleanup(), restore the pending | |
| 2299 * error/interrupt/exception state. | |
| 2300 */ | |
| 2301 else | |
| 2302 { | |
| 2303 /* | |
| 2304 * If there was an exception being thrown when enter_cleanup() was | |
| 2305 * called, we need to rethrow it. Make it the exception currently | |
| 2306 * being thrown. | |
| 2307 */ | |
| 2308 if (pending & CSTP_THROW) | |
| 2309 current_exception = csp->exception; | |
| 2310 | |
| 2311 /* | |
| 2312 * If an error was about to be converted to an exception when | |
| 2313 * enter_cleanup() was called, let "cause_abort" take the part of | |
| 2314 * "force_abort" (as done by cause_errthrow()). | |
| 2315 */ | |
| 2316 else if (pending & CSTP_ERROR) | |
| 2317 { | |
| 2318 cause_abort = force_abort; | |
| 2319 force_abort = FALSE; | |
| 2320 } | |
| 2321 | |
| 2322 /* | |
| 2323 * Restore the pending values of did_emsg, got_int, and did_throw. | |
| 2324 */ | |
| 2325 if (pending & CSTP_ERROR) | |
| 2326 did_emsg = TRUE; | |
| 2327 if (pending & CSTP_INTERRUPT) | |
| 2328 got_int = TRUE; | |
| 2329 if (pending & CSTP_THROW) | |
|
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2330 need_rethrow = TRUE; // did_throw will be set by do_one_cmd() |
| 24 | 2331 |
|
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2332 // Report if required by the 'verbose' option or when debugging. |
| 24 | 2333 report_resume_pending(pending, |
| 36 | 2334 (pending & CSTP_THROW) ? (void *)current_exception : NULL); |
| 24 | 2335 } |
| 2336 } | |
| 2337 | |
| 2338 | |
| 2339 /* | |
| 7 | 2340 * Make conditionals inactive and discard what's pending in finally clauses |
| 2341 * until the conditional type searched for or a try conditional not in its | |
| 79 | 2342 * finally clause is reached. If this is in an active catch clause, finish |
| 2343 * the caught exception. | |
| 2344 * Return the cstack index where the search stopped. | |
| 75 | 2345 * Values used for "searched_cond" are (CSF_WHILE | CSF_FOR) or CSF_TRY or 0, |
| 2346 * the latter meaning the innermost try conditional not in its finally clause. | |
| 2347 * "inclusive" tells whether the conditional searched for should be made | |
| 4352 | 2348 * inactive itself (a try conditional not in its finally clause possibly find |
| 75 | 2349 * before is always made inactive). If "inclusive" is TRUE and |
| 2350 * "searched_cond" is CSF_TRY|CSF_SILENT, the saved former value of | |
| 2351 * "emsg_silent", if reset when the try conditional finally reached was | |
| 4352 | 2352 * entered, is restored (used by ex_endtry()). This is normally done only |
| 75 | 2353 * when such a try conditional is left. |
| 7 | 2354 */ |
| 2355 int | |
|
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2356 cleanup_conditionals( |
|
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2357 cstack_T *cstack, |
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2358 int searched_cond, |
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f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
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changeset
|
2359 int inclusive) |
| 7 | 2360 { |
| 2361 int idx; | |
| 2362 int stop = FALSE; | |
| 2363 | |
| 2364 for (idx = cstack->cs_idx; idx >= 0; --idx) | |
| 2365 { | |
| 2366 if (cstack->cs_flags[idx] & CSF_TRY) | |
| 2367 { | |
| 2368 /* | |
| 2369 * Discard anything pending in a finally clause and continue the | |
| 2370 * search. There may also be a pending ":continue", ":break", | |
| 2371 * ":return", or ":finish" before the finally clause. We must not | |
| 2372 * discard it, unless an error or interrupt occurred afterwards. | |
| 2373 */ | |
| 359 | 2374 if (did_emsg || got_int || (cstack->cs_flags[idx] & CSF_FINALLY)) |
| 7 | 2375 { |
| 2376 switch (cstack->cs_pending[idx]) | |
| 2377 { | |
| 2378 case CSTP_NONE: | |
| 2379 break; | |
| 2380 | |
| 2381 case CSTP_CONTINUE: | |
| 2382 case CSTP_BREAK: | |
| 2383 case CSTP_FINISH: | |
| 2384 report_discard_pending(cstack->cs_pending[idx], NULL); | |
| 2385 cstack->cs_pending[idx] = CSTP_NONE; | |
| 2386 break; | |
| 2387 | |
| 2388 case CSTP_RETURN: | |
| 2389 report_discard_pending(CSTP_RETURN, | |
| 68 | 2390 cstack->cs_rettv[idx]); |
| 2391 discard_pending_return(cstack->cs_rettv[idx]); | |
| 7 | 2392 cstack->cs_pending[idx] = CSTP_NONE; |
| 2393 break; | |
| 2394 | |
| 2395 default: | |
| 2396 if (cstack->cs_flags[idx] & CSF_FINALLY) | |
| 2397 { | |
|
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2398 if ((cstack->cs_pending[idx] & CSTP_THROW) |
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2399 && cstack->cs_exception[idx] != NULL) |
| 7 | 2400 { |
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2401 // Cancel the pending exception. This is in the |
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2402 // finally clause, so that the stack of the |
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2403 // caught exceptions is not involved. |
|
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2404 discard_exception( |
|
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2405 (except_T *)cstack->cs_exception[idx], |
| 7 | 2406 FALSE); |
| 2407 } | |
| 2408 else | |
| 2409 report_discard_pending(cstack->cs_pending[idx], | |
| 2410 NULL); | |
| 2411 cstack->cs_pending[idx] = CSTP_NONE; | |
| 2412 } | |
| 2413 break; | |
| 2414 } | |
| 2415 } | |
| 2416 | |
| 2417 /* | |
| 2418 * Stop at a try conditional not in its finally clause. If this try | |
| 2419 * conditional is in an active catch clause, finish the caught | |
| 2420 * exception. | |
| 2421 */ | |
| 2422 if (!(cstack->cs_flags[idx] & CSF_FINALLY)) | |
| 2423 { | |
| 2424 if ((cstack->cs_flags[idx] & CSF_ACTIVE) | |
|
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2425 && (cstack->cs_flags[idx] & CSF_CAUGHT) |
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2426 && !(cstack->cs_flags[idx] & CSF_FINISHED)) |
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|
2427 { |
| 7 | 2428 finish_exception((except_T *)cstack->cs_exception[idx]); |
|
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2429 cstack->cs_flags[idx] |= CSF_FINISHED; |
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2430 } |
|
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2431 // Stop at this try conditional - except the try block never |
|
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2432 // got active (because of an inactive surrounding conditional |
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2433 // or when the ":try" appeared after an error or interrupt or |
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2434 // throw). |
| 7 | 2435 if (cstack->cs_flags[idx] & CSF_TRUE) |
| 2436 { | |
| 2437 if (searched_cond == 0 && !inclusive) | |
| 2438 break; | |
| 2439 stop = TRUE; | |
| 2440 } | |
| 2441 } | |
| 2442 } | |
| 2443 | |
|
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2444 // Stop on the searched conditional type (even when the surrounding |
|
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|
2445 // conditional is not active or something has been made pending). |
|
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2446 // If "inclusive" is TRUE and "searched_cond" is CSF_TRY|CSF_SILENT, |
|
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|
2447 // check first whether "emsg_silent" needs to be restored. |
| 7 | 2448 if (cstack->cs_flags[idx] & searched_cond) |
| 2449 { | |
| 2450 if (!inclusive) | |
| 2451 break; | |
| 2452 stop = TRUE; | |
| 2453 } | |
| 2454 cstack->cs_flags[idx] &= ~CSF_ACTIVE; | |
| 2455 if (stop && searched_cond != (CSF_TRY | CSF_SILENT)) | |
| 2456 break; | |
| 2457 | |
| 2458 /* | |
| 1214 | 2459 * When leaving a try conditional that reset "emsg_silent" on its |
| 2460 * entry after saving the original value, restore that value here and | |
| 2461 * free the memory used to store it. | |
| 7 | 2462 */ |
| 2463 if ((cstack->cs_flags[idx] & CSF_TRY) | |
| 359 | 2464 && (cstack->cs_flags[idx] & CSF_SILENT)) |
| 7 | 2465 { |
| 2466 eslist_T *elem; | |
| 2467 | |
| 2468 elem = cstack->cs_emsg_silent_list; | |
| 2469 cstack->cs_emsg_silent_list = elem->next; | |
| 2470 emsg_silent = elem->saved_emsg_silent; | |
| 2471 vim_free(elem); | |
| 2472 cstack->cs_flags[idx] &= ~CSF_SILENT; | |
| 2473 } | |
| 2474 if (stop) | |
| 2475 break; | |
| 2476 } | |
| 2477 return idx; | |
| 2478 } | |
| 2479 | |
| 2480 /* | |
| 75 | 2481 * Return an appropriate error message for a missing endwhile/endfor/endif. |
| 2482 */ | |
|
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2483 static char * |
|
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2484 get_end_emsg(cstack_T *cstack) |
| 75 | 2485 { |
| 2486 if (cstack->cs_flags[cstack->cs_idx] & CSF_WHILE) | |
|
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2487 return _(e_endwhile); |
| 75 | 2488 if (cstack->cs_flags[cstack->cs_idx] & CSF_FOR) |
|
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2489 return _(e_endfor); |
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changeset
|
2490 return _(e_endif); |
| 75 | 2491 } |
| 2492 | |
| 2493 | |
| 2494 /* | |
| 7 | 2495 * Rewind conditionals until index "idx" is reached. "cond_type" and |
| 2496 * "cond_level" specify a conditional type and the address of a level variable | |
| 2497 * which is to be decremented with each skipped conditional of the specified | |
| 2498 * type. | |
| 79 | 2499 * Also free "for info" structures where needed. |
| 7 | 2500 */ |
| 79 | 2501 void |
|
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diff
changeset
|
2502 rewind_conditionals( |
|
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|
2503 cstack_T *cstack, |
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commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
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diff
changeset
|
2504 int idx, |
|
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2505 int cond_type, |
|
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2506 int *cond_level) |
| 7 | 2507 { |
| 2508 while (cstack->cs_idx > idx) | |
| 2509 { | |
| 2510 if (cstack->cs_flags[cstack->cs_idx] & cond_type) | |
| 2511 --*cond_level; | |
| 79 | 2512 if (cstack->cs_flags[cstack->cs_idx] & CSF_FOR) |
| 2513 free_for_info(cstack->cs_forinfo[cstack->cs_idx]); | |
|
22551
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patch 8.2.1824: Vim9: variables at the script level escape their scope
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changeset
|
2514 leave_block(cstack); |
| 7 | 2515 } |
| 2516 } | |
| 2517 | |
| 2518 /* | |
| 2519 * ":endfunction" when not after a ":function" | |
| 2520 */ | |
| 2521 void | |
|
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2522 ex_endfunction(exarg_T *eap) |
| 7 | 2523 { |
|
20029
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2524 if (eap->cmdidx == CMD_enddef) |
|
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2525 emsg(_("E193: :enddef not inside a function")); |
|
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2526 else |
|
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changeset
|
2527 emsg(_("E193: :endfunction not inside a function")); |
| 7 | 2528 } |
| 2529 | |
| 2530 /* | |
| 75 | 2531 * Return TRUE if the string "p" looks like a ":while" or ":for" command. |
| 7 | 2532 */ |
| 2533 int | |
|
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changeset
|
2534 has_loop_cmd(char_u *p) |
| 7 | 2535 { |
| 1447 | 2536 int len; |
| 2537 | |
|
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|
2538 // skip modifiers, white space and ':' |
| 1447 | 2539 for (;;) |
| 2540 { | |
| 2541 while (*p == ' ' || *p == '\t' || *p == ':') | |
| 2542 ++p; | |
| 2543 len = modifier_len(p); | |
| 2544 if (len == 0) | |
| 2545 break; | |
| 2546 p += len; | |
| 2547 } | |
| 75 | 2548 if ((p[0] == 'w' && p[1] == 'h') |
| 2549 || (p[0] == 'f' && p[1] == 'o' && p[2] == 'r')) | |
| 7 | 2550 return TRUE; |
| 2551 return FALSE; | |
| 2552 } | |
| 2553 | |
|
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2554 #endif // FEAT_EVAL |