Mercurial > vim
annotate src/ex_eval.c @ 33729:9a846ba607bb
runtime(wget): Update for Wget2 2.1.0 (#13497)
Commit: https://github.com/vim/vim/commit/d56f15caf602a061f5f9f0a3c6a4537ab2dc6acc
Author: dkearns <dougkearns@gmail.com>
Date: Thu Nov 9 06:53:20 2023 +1100
runtime(wget): Update for Wget2 2.1.0 (https://github.com/vim/vim/issues/13497)
Signed-off-by: Christian Brabandt <cb@256bit.org>
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Wed, 08 Nov 2023 21:00:08 +0100 |
| parents | 53416c49a7ab |
| children |
| rev | line source |
|---|---|
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 | |
| 10 /* | |
| 11 * ex_eval.c: functions for Ex command line for the +eval feature. | |
| 12 */ | |
| 13 | |
| 14 #include "vim.h" | |
| 15 | |
| 16 #if defined(FEAT_EVAL) || defined(PROTO) | |
| 17 | |
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18 static char *get_end_emsg(cstack_T *cstack); |
| 7 | 19 |
| 20 /* | |
| 21 * Exception handling terms: | |
| 22 * | |
| 23 * :try ":try" command \ | |
| 24 * ... try block | | |
| 25 * :catch RE ":catch" command | | |
| 26 * ... catch clause |- try conditional | |
| 27 * :finally ":finally" command | | |
| 28 * ... finally clause | | |
| 29 * :endtry ":endtry" command / | |
| 30 * | |
| 31 * The try conditional may have any number of catch clauses and at most one | |
| 32 * finally clause. A ":throw" command can be inside the try block, a catch | |
| 33 * clause, the finally clause, or in a function called or script sourced from | |
| 34 * there or even outside the try conditional. Try conditionals may be nested. | |
| 35 */ | |
| 36 | |
| 37 /* | |
| 38 * Configuration whether an exception is thrown on error or interrupt. When | |
| 39 * the preprocessor macros below evaluate to FALSE, an error (did_emsg) or | |
| 40 * interrupt (got_int) under an active try conditional terminates the script | |
| 41 * after the non-active finally clauses of all active try conditionals have been | |
| 42 * executed. Otherwise, errors and/or interrupts are converted into catchable | |
| 43 * exceptions (did_throw additionally set), which terminate the script only if | |
| 44 * not caught. For user exceptions, only did_throw is set. (Note: got_int can | |
| 4352 | 45 * be set asynchronously afterwards by a SIGINT, so did_throw && got_int is not |
| 7 | 46 * a reliant test that the exception currently being thrown is an interrupt |
| 47 * exception. Similarly, did_emsg can be set afterwards on an error in an | |
| 48 * (unskipped) conditional command inside an inactive conditional, so did_throw | |
| 49 * && did_emsg is not a reliant test that the exception currently being thrown | |
| 50 * is an error exception.) - The macros can be defined as expressions checking | |
| 51 * for a variable that is allowed to be changed during execution of a script. | |
| 52 */ | |
| 53 #if 0 | |
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54 // Expressions used for testing during the development phase. |
| 7 | 55 # define THROW_ON_ERROR (!eval_to_number("$VIMNOERRTHROW")) |
| 56 # define THROW_ON_INTERRUPT (!eval_to_number("$VIMNOINTTHROW")) | |
| 57 # define THROW_TEST | |
| 58 #else | |
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59 // Values used for the Vim release. |
| 7 | 60 # define THROW_ON_ERROR TRUE |
| 1880 | 61 # define THROW_ON_ERROR_TRUE |
| 7 | 62 # define THROW_ON_INTERRUPT TRUE |
| 1880 | 63 # define THROW_ON_INTERRUPT_TRUE |
| 7 | 64 #endif |
| 65 | |
| 66 /* | |
| 67 * When several errors appear in a row, setting "force_abort" is delayed until | |
| 68 * the failing command returned. "cause_abort" is set to TRUE meanwhile, in | |
| 69 * order to indicate that situation. This is useful when "force_abort" was set | |
| 70 * during execution of a function call from an expression: the aborting of the | |
| 71 * expression evaluation is done without producing any error messages, but all | |
| 72 * error messages on parsing errors during the expression evaluation are given | |
| 73 * (even if a try conditional is active). | |
| 74 */ | |
| 75 static int cause_abort = FALSE; | |
| 76 | |
| 77 /* | |
| 1214 | 78 * Return TRUE when immediately aborting on error, or when an interrupt |
| 7 | 79 * occurred or an exception was thrown but not caught. Use for ":{range}call" |
| 80 * to check whether an aborted function that does not handle a range itself | |
| 81 * should be called again for the next line in the range. Also used for | |
| 82 * cancelling expression evaluation after a function call caused an immediate | |
| 83 * abort. Note that the first emsg() call temporarily resets "force_abort" | |
| 84 * until the throw point for error messages has been reached. That is, during | |
| 85 * cancellation of an expression evaluation after an aborting function call or | |
| 86 * due to a parsing error, aborting() always returns the same value. | |
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87 * "got_int" is also set by calling interrupt(). |
| 7 | 88 */ |
| 89 int | |
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90 aborting(void) |
| 7 | 91 { |
| 92 return (did_emsg && force_abort) || got_int || did_throw; | |
| 93 } | |
| 94 | |
| 95 /* | |
| 96 * The value of "force_abort" is temporarily reset by the first emsg() call | |
| 97 * during an expression evaluation, and "cause_abort" is used instead. It might | |
| 98 * be necessary to restore "force_abort" even before the throw point for the | |
| 99 * error message has been reached. update_force_abort() should be called then. | |
| 100 */ | |
| 101 void | |
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102 update_force_abort(void) |
| 7 | 103 { |
| 104 if (cause_abort) | |
| 105 force_abort = TRUE; | |
| 106 } | |
| 107 | |
| 108 /* | |
| 109 * Return TRUE if a command with a subcommand resulting in "retcode" should | |
| 110 * abort the script processing. Can be used to suppress an autocommand after | |
| 111 * execution of a failing subcommand as long as the error message has not been | |
| 112 * displayed and actually caused the abortion. | |
| 113 */ | |
| 114 int | |
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115 should_abort(int retcode) |
| 7 | 116 { |
| 117 return ((retcode == FAIL && trylevel != 0 && !emsg_silent) || aborting()); | |
| 118 } | |
| 119 | |
| 120 /* | |
| 121 * Return TRUE if a function with the "abort" flag should not be considered | |
| 122 * ended on an error. This means that parsing commands is continued in order | |
| 123 * to find finally clauses to be executed, and that some errors in skipped | |
| 124 * commands are still reported. | |
| 125 */ | |
| 126 int | |
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127 aborted_in_try(void) |
| 7 | 128 { |
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129 // This function is only called after an error. In this case, "force_abort" |
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130 // determines whether searching for finally clauses is necessary. |
| 7 | 131 return force_abort; |
| 132 } | |
| 133 | |
| 134 /* | |
| 135 * cause_errthrow(): Cause a throw of an error exception if appropriate. | |
| 136 * Return TRUE if the error message should not be displayed by emsg(). | |
| 137 * Sets "ignore", if the emsg() call should be ignored completely. | |
| 138 * | |
| 139 * When several messages appear in the same command, the first is usually the | |
| 140 * most specific one and used as the exception value. The "severe" flag can be | |
| 141 * set to TRUE, if a later but severer message should be used instead. | |
| 142 */ | |
| 143 int | |
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144 cause_errthrow( |
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145 char_u *mesg, |
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146 int severe, |
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147 int *ignore) |
| 7 | 148 { |
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149 msglist_T *elem; |
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150 msglist_T **plist; |
| 7 | 151 |
| 152 /* | |
| 839 | 153 * Do nothing when displaying the interrupt message or reporting an |
| 154 * uncaught exception (which has already been discarded then) at the top | |
| 155 * level. Also when no exception can be thrown. The message will be | |
| 156 * displayed by emsg(). | |
| 7 | 157 */ |
| 158 if (suppress_errthrow) | |
| 159 return FALSE; | |
| 160 | |
| 161 /* | |
| 839 | 162 * If emsg() has not been called previously, temporarily reset |
| 163 * "force_abort" until the throw point for error messages has been | |
| 164 * reached. This ensures that aborting() returns the same value for all | |
| 165 * errors that appear in the same command. This means particularly that | |
| 166 * for parsing errors during expression evaluation emsg() will be called | |
| 167 * multiply, even when the expression is evaluated from a finally clause | |
| 168 * that was activated due to an aborting error, interrupt, or exception. | |
| 7 | 169 */ |
| 170 if (!did_emsg) | |
| 171 { | |
| 172 cause_abort = force_abort; | |
| 173 force_abort = FALSE; | |
| 174 } | |
| 175 | |
| 176 /* | |
| 177 * If no try conditional is active and no exception is being thrown and | |
| 178 * there has not been an error in a try conditional or a throw so far, do | |
| 839 | 179 * nothing (for compatibility of non-EH scripts). The message will then |
| 180 * be displayed by emsg(). When ":silent!" was used and we are not | |
| 181 * currently throwing an exception, do nothing. The message text will | |
| 182 * then be stored to v:errmsg by emsg() without displaying it. | |
| 7 | 183 */ |
| 184 if (((trylevel == 0 && !cause_abort) || emsg_silent) && !did_throw) | |
| 185 return FALSE; | |
| 186 | |
| 187 /* | |
| 188 * Ignore an interrupt message when inside a try conditional or when an | |
| 839 | 189 * exception is being thrown or when an error in a try conditional or |
| 190 * throw has been detected previously. This is important in order that an | |
| 7 | 191 * interrupt exception is catchable by the innermost try conditional and |
| 192 * not replaced by an interrupt message error exception. | |
| 193 */ | |
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194 if (mesg == (char_u *)_(e_interrupted)) |
| 7 | 195 { |
| 196 *ignore = TRUE; | |
| 197 return TRUE; | |
| 198 } | |
| 199 | |
| 200 /* | |
| 201 * Ensure that all commands in nested function calls and sourced files | |
| 202 * are aborted immediately. | |
| 203 */ | |
| 204 cause_abort = TRUE; | |
| 205 | |
| 206 /* | |
| 207 * When an exception is being thrown, some commands (like conditionals) are | |
| 208 * not skipped. Errors in those commands may affect what of the subsequent | |
| 209 * commands are regarded part of catch and finally clauses. Catching the | |
| 210 * exception would then cause execution of commands not intended by the | |
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211 * user, who wouldn't even get aware of the problem. Therefore, discard the |
| 7 | 212 * exception currently being thrown to prevent it from being caught. Just |
| 213 * execute finally clauses and terminate. | |
| 214 */ | |
| 215 if (did_throw) | |
| 216 { | |
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217 // When discarding an interrupt exception, reset got_int to prevent the |
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218 // same interrupt being converted to an exception again and discarding |
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219 // the error exception we are about to throw here. |
| 7 | 220 if (current_exception->type == ET_INTERRUPT) |
| 221 got_int = FALSE; | |
| 222 discard_current_exception(); | |
| 223 } | |
| 224 | |
| 225 #ifdef THROW_TEST | |
| 226 if (!THROW_ON_ERROR) | |
| 227 { | |
| 228 /* | |
| 229 * Print error message immediately without searching for a matching | |
| 230 * catch clause; just finally clauses are executed before the script | |
| 231 * is terminated. | |
| 232 */ | |
| 233 return FALSE; | |
| 234 } | |
| 235 else | |
| 236 #endif | |
| 237 { | |
| 238 /* | |
| 239 * Prepare the throw of an error exception, so that everything will | |
| 240 * be aborted (except for executing finally clauses), until the error | |
| 241 * exception is caught; if still uncaught at the top level, the error | |
| 242 * message will be displayed and the script processing terminated | |
| 243 * then. - This function has no access to the conditional stack. | |
| 244 * Thus, the actual throw is made after the failing command has | |
| 245 * returned. - Throw only the first of several errors in a row, except | |
| 246 * a severe error is following. | |
| 247 */ | |
| 248 if (msg_list != NULL) | |
| 249 { | |
| 250 plist = msg_list; | |
| 251 while (*plist != NULL) | |
| 252 plist = &(*plist)->next; | |
| 253 | |
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254 elem = ALLOC_CLEAR_ONE(msglist_T); |
| 7 | 255 if (elem == NULL) |
| 256 { | |
| 257 suppress_errthrow = TRUE; | |
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258 emsg(_(e_out_of_memory)); |
| 7 | 259 } |
| 260 else | |
| 261 { | |
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262 elem->msg = (char *)vim_strsave(mesg); |
| 7 | 263 if (elem->msg == NULL) |
| 264 { | |
| 265 vim_free(elem); | |
| 266 suppress_errthrow = TRUE; | |
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267 emsg(_(e_out_of_memory)); |
| 7 | 268 } |
| 269 else | |
| 270 { | |
| 271 elem->next = NULL; | |
| 272 elem->throw_msg = NULL; | |
| 273 *plist = elem; | |
| 274 if (plist == msg_list || severe) | |
| 275 { | |
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276 char *tmsg; |
| 7 | 277 |
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278 // Skip the extra "Vim " prefix for message "E458". |
| 7 | 279 tmsg = elem->msg; |
| 280 if (STRNCMP(tmsg, "Vim E", 5) == 0 | |
| 281 && VIM_ISDIGIT(tmsg[5]) | |
| 282 && VIM_ISDIGIT(tmsg[6]) | |
| 283 && VIM_ISDIGIT(tmsg[7]) | |
| 284 && tmsg[8] == ':' | |
| 285 && tmsg[9] == ' ') | |
| 286 (*msg_list)->throw_msg = &tmsg[4]; | |
| 287 else | |
| 288 (*msg_list)->throw_msg = tmsg; | |
| 289 } | |
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290 |
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291 // Get the source name and lnum now, it may change before |
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292 // reaching do_errthrow(). |
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293 elem->sfile = estack_sfile(ESTACK_NONE); |
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294 elem->slnum = SOURCING_LNUM; |
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295 elem->msg_compiling = estack_compiling; |
| 7 | 296 } |
| 297 } | |
| 298 } | |
| 299 return TRUE; | |
| 300 } | |
| 301 } | |
| 302 | |
| 303 /* | |
| 304 * Free a "msg_list" and the messages it contains. | |
| 305 */ | |
| 306 static void | |
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307 free_msglist(msglist_T *l) |
| 7 | 308 { |
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309 msglist_T *messages, *next; |
| 7 | 310 |
| 311 messages = l; | |
| 312 while (messages != NULL) | |
| 313 { | |
| 314 next = messages->next; | |
| 315 vim_free(messages->msg); | |
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316 vim_free(messages->sfile); |
| 7 | 317 vim_free(messages); |
| 318 messages = next; | |
| 319 } | |
| 320 } | |
| 321 | |
| 322 /* | |
| 5517 | 323 * Free global "*msg_list" and the messages it contains, then set "*msg_list" |
| 324 * to NULL. | |
| 325 */ | |
| 326 void | |
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327 free_global_msglist(void) |
| 5517 | 328 { |
| 329 free_msglist(*msg_list); | |
| 330 *msg_list = NULL; | |
| 331 } | |
| 332 | |
| 333 /* | |
| 7 | 334 * Throw the message specified in the call to cause_errthrow() above as an |
| 335 * error exception. If cstack is NULL, postpone the throw until do_cmdline() | |
| 336 * has returned (see do_one_cmd()). | |
| 337 */ | |
| 338 void | |
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339 do_errthrow(cstack_T *cstack, char_u *cmdname) |
| 7 | 340 { |
| 341 /* | |
| 342 * Ensure that all commands in nested function calls and sourced files | |
| 343 * are aborted immediately. | |
| 344 */ | |
| 345 if (cause_abort) | |
| 346 { | |
| 347 cause_abort = FALSE; | |
| 348 force_abort = TRUE; | |
| 349 } | |
| 350 | |
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351 // If no exception is to be thrown or the conversion should be done after |
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352 // returning to a previous invocation of do_one_cmd(), do nothing. |
| 1046 | 353 if (msg_list == NULL || *msg_list == NULL) |
| 7 | 354 return; |
| 355 | |
| 356 if (throw_exception(*msg_list, ET_ERROR, cmdname) == FAIL) | |
| 357 free_msglist(*msg_list); | |
| 358 else | |
| 359 { | |
| 360 if (cstack != NULL) | |
| 361 do_throw(cstack); | |
| 362 else | |
| 363 need_rethrow = TRUE; | |
| 364 } | |
| 365 *msg_list = NULL; | |
| 366 } | |
| 367 | |
| 368 /* | |
| 369 * do_intthrow(): Replace the current exception by an interrupt or interrupt | |
| 370 * exception if appropriate. Return TRUE if the current exception is discarded, | |
| 371 * FALSE otherwise. | |
| 372 */ | |
| 373 int | |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
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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parents:
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diff
changeset
|
383 #ifdef THROW_TEST // avoid warning for condition always true |
| 7 | 384 if (!THROW_ON_INTERRUPT) |
| 385 { | |
| 386 /* | |
| 387 * The interrupt aborts everything except for executing finally clauses. | |
| 388 * Discard any user or error or interrupt exception currently being | |
| 389 * thrown. | |
| 390 */ | |
| 391 if (did_throw) | |
| 392 discard_current_exception(); | |
| 393 } | |
| 394 else | |
| 395 #endif | |
| 396 { | |
| 397 /* | |
| 398 * Throw an interrupt exception, so that everything will be aborted | |
| 399 * (except for executing finally clauses), until the interrupt exception | |
| 400 * is caught; if still uncaught at the top level, the script processing | |
| 401 * will be terminated then. - If an interrupt exception is already | |
| 402 * being thrown, do nothing. | |
| 403 * | |
| 404 */ | |
| 405 if (did_throw) | |
| 406 { | |
| 407 if (current_exception->type == ET_INTERRUPT) | |
| 408 return FALSE; | |
| 409 | |
|
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
|
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 */ |
|
15470
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patch 8.1.0743: giving error messages is not flexible
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diff
changeset
|
423 char * |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
424 get_exception_string( |
|
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
425 void *value, |
|
10361
147f45c283e1
commit https://github.com/vim/vim/commit/8a5883b7488e492419dde7e1637cc72f2d566ba4
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
426 except_type_T type, |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
427 char_u *cmdname, |
|
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
428 int *should_free) |
| 7 | 429 { |
|
15470
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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; |
|
15470
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patch 8.1.0743: giving error messages is not flexible
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diff
changeset
|
433 char *p, *val; |
| 7 | 434 |
| 435 if (type == ET_ERROR) | |
| 436 { | |
|
8418
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commit https://github.com/vim/vim/commit/9ef00be261115acb5bae3b3ca45c1d86a19ba2c7
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
437 *should_free = TRUE; |
|
20538
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patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
438 mesg = ((msglist_T *)value)->throw_msg; |
| 7 | 439 if (cmdname != NULL && *cmdname != NUL) |
| 440 { | |
| 835 | 441 cmdlen = (int)STRLEN(cmdname); |
|
15470
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patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
442 ret = (char *)vim_strnsave((char_u *)"Vim(", |
|
20830
9064044fd4f6
patch 8.2.0967: unnecessary type casts for vim_strnsave()
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
443 4 + cmdlen + 2 + STRLEN(mesg)); |
| 5517 | 444 if (ret == NULL) |
| 445 return ret; | |
| 446 STRCPY(&ret[4], cmdname); | |
| 447 STRCPY(&ret[4 + cmdlen], "):"); | |
| 448 val = ret + 4 + cmdlen + 2; | |
| 7 | 449 } |
| 450 else | |
| 451 { | |
|
20830
9064044fd4f6
patch 8.2.0967: unnecessary type casts for vim_strnsave()
Bram Moolenaar <Bram@vim.org>
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20538
diff
changeset
|
452 ret = (char *)vim_strnsave((char_u *)"Vim:", 4 + STRLEN(mesg)); |
| 5517 | 453 if (ret == NULL) |
| 454 return ret; | |
| 455 val = ret + 4; | |
| 7 | 456 } |
| 457 | |
|
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patch 8.1.2379: using old C style comments
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diff
changeset
|
458 // msg_add_fname may have been used to prefix the message with a file |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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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
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
473 STRCAT(val, mesg); // 'E123' missing or at beginning |
| 7 | 474 else |
| 475 { | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
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changeset
|
476 // '"filename" E123: message text' |
| 7 | 477 if (mesg[0] != '"' || p-2 < &mesg[1] || |
| 478 p[-2] != '"' || p[-1] != ' ') | |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
479 // "E123:" is part of the file name. |
| 7 | 480 continue; |
| 481 | |
| 482 STRCAT(val, p); | |
| 483 p[-2] = NUL; | |
| 484 sprintf((char *)(val + STRLEN(p)), " (%s)", &mesg[1]); | |
| 485 p[-2] = '"'; | |
| 486 } | |
| 487 break; | |
| 488 } | |
| 489 } | |
| 490 } | |
| 491 else | |
| 5517 | 492 { |
| 493 *should_free = FALSE; | |
|
15470
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patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
494 ret = value; |
| 5517 | 495 } |
| 496 | |
| 497 return ret; | |
| 498 } | |
| 499 | |
| 500 | |
| 501 /* | |
| 502 * Throw a new exception. Return FAIL when out of memory or it was tried to | |
| 503 * throw an illegal user exception. "value" is the exception string for a | |
| 504 * user or interrupt exception, or points to a message list in case of an | |
| 505 * error exception. | |
| 506 */ | |
|
19181
94eda51ba9ba
patch 8.2.0149: maintaining a Vim9 branch separately is more work
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18991
diff
changeset
|
507 int |
|
10361
147f45c283e1
commit https://github.com/vim/vim/commit/8a5883b7488e492419dde7e1637cc72f2d566ba4
Christian Brabandt <cb@256bit.org>
parents:
10359
diff
changeset
|
508 throw_exception(void *value, except_type_T type, char_u *cmdname) |
| 5517 | 509 { |
| 510 except_T *excp; | |
| 511 int should_free; | |
| 512 | |
| 513 /* | |
| 514 * Disallow faking Interrupt or error exceptions as user exceptions. They | |
| 515 * would be treated differently from real interrupt or error exceptions | |
| 516 * when no active try block is found, see do_cmdline(). | |
| 517 */ | |
| 518 if (type == ET_USER) | |
| 519 { | |
| 520 if (STRNCMP((char_u *)value, "Vim", 3) == 0 | |
| 521 && (((char_u *)value)[3] == NUL || ((char_u *)value)[3] == ':' | |
| 522 || ((char_u *)value)[3] == '(')) | |
| 523 { | |
|
26948
51ddf6740ac6
patch 8.2.4003: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26917
diff
changeset
|
524 emsg(_(e_cannot_throw_exceptions_with_vim_prefix)); |
| 5517 | 525 goto fail; |
| 526 } | |
| 527 } | |
| 528 | |
|
16825
ce04ebdf26b8
patch 8.1.1414: alloc() returning "char_u *" causes a lot of type casts
Bram Moolenaar <Bram@vim.org>
parents:
16764
diff
changeset
|
529 excp = ALLOC_ONE(except_T); |
| 5517 | 530 if (excp == NULL) |
| 531 goto nomem; | |
| 532 | |
| 533 if (type == ET_ERROR) | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
534 // Store the original message and prefix the exception value with |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
535 // "Vim:" or, if a command name is given, "Vim(cmdname):". |
|
20538
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
536 excp->messages = (msglist_T *)value; |
| 5517 | 537 |
| 538 excp->value = get_exception_string(value, type, cmdname, &should_free); | |
| 539 if (excp->value == NULL && should_free) | |
| 540 goto nomem; | |
| 7 | 541 |
| 542 excp->type = type; | |
|
20538
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
543 if (type == ET_ERROR && ((msglist_T *)value)->sfile != NULL) |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
544 { |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
545 msglist_T *entry = (msglist_T *)value; |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
546 |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
547 excp->throw_name = entry->sfile; |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
548 entry->sfile = NULL; |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
549 excp->throw_lnum = entry->slnum; |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
550 } |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
551 else |
| 7 | 552 { |
|
22208
a607f02fd17a
patch 8.2.1653: expand('<stack>') does not include the final line number
Bram Moolenaar <Bram@vim.org>
parents:
21493
diff
changeset
|
553 excp->throw_name = estack_sfile(ESTACK_NONE); |
|
20538
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
554 if (excp->throw_name == NULL) |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
555 excp->throw_name = vim_strsave((char_u *)""); |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
556 if (excp->throw_name == NULL) |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
557 { |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
558 if (should_free) |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
559 vim_free(excp->value); |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
560 goto nomem; |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
561 } |
|
9f921ba86d05
patch 8.2.0823: Vim9: script reload test is disabled
Bram Moolenaar <Bram@vim.org>
parents:
20397
diff
changeset
|
562 excp->throw_lnum = SOURCING_LNUM; |
| 7 | 563 } |
| 564 | |
| 565 if (p_verbose >= 13 || debug_break_level > 0) | |
| 566 { | |
| 567 int save_msg_silent = msg_silent; | |
| 568 | |
| 569 if (debug_break_level > 0) | |
|
18779
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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
66f1b5bf3fa6
commit https://github.com/vim/vim/commit/95f096030ed1a8afea028f2ea295d6f6a70f466f
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
614 internal_error("discard_exception()"); |
| 7 | 615 return; |
| 616 } | |
| 617 | |
| 618 if (p_verbose >= 13 || debug_break_level > 0) | |
| 619 { | |
| 620 int save_msg_silent = msg_silent; | |
| 621 | |
| 622 saved_IObuff = vim_strsave(IObuff); | |
| 623 if (debug_break_level > 0) | |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
624 msg_silent = FALSE; // display messages |
| 293 | 625 else |
| 626 verbose_enter(); | |
| 7 | 627 ++no_wait_return; |
| 293 | 628 if (debug_break_level > 0 || *p_vfile == NUL) |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
629 msg_scroll = TRUE; // always scroll up, don't overwrite |
| 273 | 630 smsg(was_finished |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
631 ? _("Exception finished: %s") |
|
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
632 : _("Exception discarded: %s"), |
| 7 | 633 excp->value); |
|
18779
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patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
634 msg_puts("\n"); // don't overwrite this either |
| 293 | 635 if (debug_break_level > 0 || *p_vfile == NUL) |
| 636 cmdline_row = msg_row; | |
| 7 | 637 --no_wait_return; |
| 638 if (debug_break_level > 0) | |
| 639 msg_silent = save_msg_silent; | |
| 293 | 640 else |
| 641 verbose_leave(); | |
| 7 | 642 STRCPY(IObuff, saved_IObuff); |
| 643 vim_free(saved_IObuff); | |
| 644 } | |
| 645 if (excp->type != ET_INTERRUPT) | |
| 646 vim_free(excp->value); | |
| 647 if (excp->type == ET_ERROR) | |
| 648 free_msglist(excp->messages); | |
| 649 vim_free(excp->throw_name); | |
| 650 vim_free(excp); | |
| 651 } | |
| 652 | |
| 653 /* | |
| 654 * Discard the exception currently being thrown. | |
| 655 */ | |
| 656 void | |
|
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|
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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|
669 catch_exception(except_T *excp) |
| 7 | 670 { |
| 671 excp->caught = caught_stack; | |
| 672 caught_stack = excp; | |
|
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673 set_vim_var_string(VV_EXCEPTION, (char_u *)excp->value, -1); |
| 7 | 674 if (*excp->throw_name != NUL) |
| 675 { | |
| 676 if (excp->throw_lnum != 0) | |
| 273 | 677 vim_snprintf((char *)IObuff, IOSIZE, _("%s, line %ld"), |
| 678 excp->throw_name, (long)excp->throw_lnum); | |
| 7 | 679 else |
| 273 | 680 vim_snprintf((char *)IObuff, IOSIZE, "%s", excp->throw_name); |
| 7 | 681 set_vim_var_string(VV_THROWPOINT, IObuff, -1); |
| 682 } | |
| 683 else | |
|
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684 // throw_name not set on an exception from a command that was typed. |
| 7 | 685 set_vim_var_string(VV_THROWPOINT, NULL, -1); |
| 686 | |
| 687 if (p_verbose >= 13 || debug_break_level > 0) | |
| 688 { | |
| 689 int save_msg_silent = msg_silent; | |
| 690 | |
| 691 if (debug_break_level > 0) | |
|
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692 msg_silent = FALSE; // display messages |
| 293 | 693 else |
| 694 verbose_enter(); | |
| 7 | 695 ++no_wait_return; |
| 293 | 696 if (debug_break_level > 0 || *p_vfile == NUL) |
|
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697 msg_scroll = TRUE; // always scroll up, don't overwrite |
| 293 | 698 |
|
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699 smsg(_("Exception caught: %s"), excp->value); |
|
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700 msg_puts("\n"); // don't overwrite this either |
| 293 | 701 |
| 702 if (debug_break_level > 0 || *p_vfile == NUL) | |
| 703 cmdline_row = msg_row; | |
| 7 | 704 --no_wait_return; |
| 705 if (debug_break_level > 0) | |
| 706 msg_silent = save_msg_silent; | |
| 293 | 707 else |
| 708 verbose_leave(); | |
| 7 | 709 } |
| 710 } | |
| 711 | |
| 712 /* | |
| 713 * Remove an exception from the caught stack. | |
| 714 */ | |
| 715 static void | |
|
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716 finish_exception(except_T *excp) |
| 7 | 717 { |
| 718 if (excp != caught_stack) | |
|
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719 internal_error("finish_exception()"); |
| 7 | 720 caught_stack = caught_stack->caught; |
| 721 if (caught_stack != NULL) | |
| 722 { | |
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723 set_vim_var_string(VV_EXCEPTION, (char_u *)caught_stack->value, -1); |
| 7 | 724 if (*caught_stack->throw_name != NUL) |
| 725 { | |
| 726 if (caught_stack->throw_lnum != 0) | |
| 273 | 727 vim_snprintf((char *)IObuff, IOSIZE, |
| 7 | 728 _("%s, line %ld"), caught_stack->throw_name, |
| 729 (long)caught_stack->throw_lnum); | |
| 730 else | |
| 273 | 731 vim_snprintf((char *)IObuff, IOSIZE, "%s", |
| 732 caught_stack->throw_name); | |
| 7 | 733 set_vim_var_string(VV_THROWPOINT, IObuff, -1); |
| 734 } | |
| 735 else | |
|
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736 // throw_name not set on an exception from a command that was |
|
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737 // typed. |
| 7 | 738 set_vim_var_string(VV_THROWPOINT, NULL, -1); |
| 739 } | |
| 740 else | |
| 741 { | |
| 742 set_vim_var_string(VV_EXCEPTION, NULL, -1); | |
| 743 set_vim_var_string(VV_THROWPOINT, NULL, -1); | |
| 744 } | |
| 745 | |
|
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746 // Discard the exception, but use the finish message for 'verbose'. |
| 7 | 747 discard_exception(excp, TRUE); |
| 748 } | |
| 749 | |
| 750 /* | |
|
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751 * Save the current exception state in "estate" |
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752 */ |
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753 void |
|
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754 exception_state_save(exception_state_T *estate) |
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755 { |
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756 estate->estate_current_exception = current_exception; |
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757 estate->estate_did_throw = did_throw; |
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758 estate->estate_need_rethrow = need_rethrow; |
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759 estate->estate_trylevel = trylevel; |
|
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760 estate->estate_did_emsg = did_emsg; |
|
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761 } |
|
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762 |
|
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763 /* |
|
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764 * Restore the current exception state from "estate" |
|
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765 */ |
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766 void |
|
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767 exception_state_restore(exception_state_T *estate) |
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768 { |
|
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769 // Handle any outstanding exceptions before restoring the state |
|
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770 if (did_throw) |
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771 handle_did_throw(); |
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772 current_exception = estate->estate_current_exception; |
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773 did_throw = estate->estate_did_throw; |
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774 need_rethrow = estate->estate_need_rethrow; |
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775 trylevel = estate->estate_trylevel; |
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776 did_emsg = estate->estate_did_emsg; |
|
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777 } |
|
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778 |
|
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779 /* |
|
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780 * Clear the current exception state |
|
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781 */ |
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782 void |
|
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783 exception_state_clear(void) |
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784 { |
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785 current_exception = NULL; |
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786 did_throw = FALSE; |
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787 need_rethrow = FALSE; |
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788 trylevel = 0; |
|
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789 did_emsg = 0; |
|
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790 } |
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791 |
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792 /* |
| 7 | 793 * Flags specifying the message displayed by report_pending. |
| 794 */ | |
| 795 #define RP_MAKE 0 | |
| 796 #define RP_RESUME 1 | |
| 797 #define RP_DISCARD 2 | |
| 798 | |
| 799 /* | |
| 800 * Report information about something pending in a finally clause if required by | |
| 801 * the 'verbose' option or when debugging. "action" tells whether something is | |
| 802 * made pending or something pending is resumed or discarded. "pending" tells | |
| 803 * what is pending. "value" specifies the return value for a pending ":return" | |
| 804 * or the exception value for a pending exception. | |
| 805 */ | |
| 806 static void | |
|
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807 report_pending(int action, int pending, void *value) |
| 7 | 808 { |
|
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809 char *mesg; |
| 7 | 810 char *s; |
| 811 int save_msg_silent; | |
| 812 | |
| 813 | |
| 814 switch (action) | |
| 815 { | |
| 816 case RP_MAKE: | |
|
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817 mesg = _("%s made pending"); |
| 7 | 818 break; |
| 819 case RP_RESUME: | |
|
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820 mesg = _("%s resumed"); |
| 7 | 821 break; |
|
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822 // case RP_DISCARD: |
| 7 | 823 default: |
|
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824 mesg = _("%s discarded"); |
| 7 | 825 break; |
| 826 } | |
| 827 | |
| 828 switch (pending) | |
| 829 { | |
| 830 case CSTP_NONE: | |
| 831 return; | |
| 832 | |
| 833 case CSTP_CONTINUE: | |
| 834 s = ":continue"; | |
| 835 break; | |
| 836 case CSTP_BREAK: | |
| 837 s = ":break"; | |
| 838 break; | |
| 839 case CSTP_FINISH: | |
| 840 s = ":finish"; | |
| 841 break; | |
| 842 case CSTP_RETURN: | |
|
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843 // ":return" command producing value, allocated |
| 7 | 844 s = (char *)get_return_cmd(value); |
| 845 break; | |
| 846 | |
| 847 default: | |
| 848 if (pending & CSTP_THROW) | |
| 849 { | |
|
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850 vim_snprintf((char *)IObuff, IOSIZE, mesg, _("Exception")); |
|
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851 mesg = (char *)vim_strnsave(IObuff, STRLEN(IObuff) + 4); |
| 7 | 852 STRCAT(mesg, ": %s"); |
| 853 s = (char *)((except_T *)value)->value; | |
| 854 } | |
| 855 else if ((pending & CSTP_ERROR) && (pending & CSTP_INTERRUPT)) | |
| 856 s = _("Error and interrupt"); | |
| 857 else if (pending & CSTP_ERROR) | |
| 858 s = _("Error"); | |
|
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859 else // if (pending & CSTP_INTERRUPT) |
| 7 | 860 s = _("Interrupt"); |
| 861 } | |
| 862 | |
| 863 save_msg_silent = msg_silent; | |
| 864 if (debug_break_level > 0) | |
|
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865 msg_silent = FALSE; // display messages |
| 7 | 866 ++no_wait_return; |
|
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867 msg_scroll = TRUE; // always scroll up, don't overwrite |
|
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868 smsg(mesg, s); |
|
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869 msg_puts("\n"); // don't overwrite this either |
| 7 | 870 cmdline_row = msg_row; |
| 871 --no_wait_return; | |
| 872 if (debug_break_level > 0) | |
| 873 msg_silent = save_msg_silent; | |
| 874 | |
| 875 if (pending == CSTP_RETURN) | |
| 876 vim_free(s); | |
| 877 else if (pending & CSTP_THROW) | |
| 878 vim_free(mesg); | |
| 879 } | |
| 880 | |
| 881 /* | |
| 882 * If something is made pending in a finally clause, report it if required by | |
| 883 * the 'verbose' option or when debugging. | |
| 884 */ | |
| 885 void | |
|
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|
886 report_make_pending(int pending, void *value) |
| 7 | 887 { |
| 888 if (p_verbose >= 14 || debug_break_level > 0) | |
| 293 | 889 { |
| 890 if (debug_break_level <= 0) | |
| 891 verbose_enter(); | |
| 7 | 892 report_pending(RP_MAKE, pending, value); |
| 293 | 893 if (debug_break_level <= 0) |
| 894 verbose_leave(); | |
| 895 } | |
| 7 | 896 } |
| 897 | |
| 898 /* | |
| 899 * If something pending in a finally clause is resumed at the ":endtry", report | |
| 900 * it if required by the 'verbose' option or when debugging. | |
| 901 */ | |
|
17789
0f7ae8010787
patch 8.1.1891: functions used in one file are global
Bram Moolenaar <Bram@vim.org>
parents:
17620
diff
changeset
|
902 static void |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
903 report_resume_pending(int pending, void *value) |
| 7 | 904 { |
| 905 if (p_verbose >= 14 || debug_break_level > 0) | |
| 293 | 906 { |
| 907 if (debug_break_level <= 0) | |
| 908 verbose_enter(); | |
| 7 | 909 report_pending(RP_RESUME, pending, value); |
| 293 | 910 if (debug_break_level <= 0) |
| 911 verbose_leave(); | |
| 912 } | |
| 7 | 913 } |
| 914 | |
| 915 /* | |
| 916 * If something pending in a finally clause is discarded, report it if required | |
| 917 * by the 'verbose' option or when debugging. | |
| 918 */ | |
|
17789
0f7ae8010787
patch 8.1.1891: functions used in one file are global
Bram Moolenaar <Bram@vim.org>
parents:
17620
diff
changeset
|
919 static void |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
920 report_discard_pending(int pending, void *value) |
| 7 | 921 { |
| 922 if (p_verbose >= 14 || debug_break_level > 0) | |
| 293 | 923 { |
| 924 if (debug_break_level <= 0) | |
| 925 verbose_enter(); | |
| 7 | 926 report_pending(RP_DISCARD, pending, value); |
| 293 | 927 if (debug_break_level <= 0) |
| 928 verbose_leave(); | |
| 929 } | |
| 7 | 930 } |
| 931 | |
|
26228
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
932 /* |
|
28895
228154db3ce6
patch 8.2.4970: "eval 123" gives an error, "eval 'abc'" does not
Bram Moolenaar <Bram@vim.org>
parents:
28712
diff
changeset
|
933 * Return TRUE if "arg" is only a variable, register, environment variable, |
|
228154db3ce6
patch 8.2.4970: "eval 123" gives an error, "eval 'abc'" does not
Bram Moolenaar <Bram@vim.org>
parents:
28712
diff
changeset
|
934 * option name or string. |
|
26228
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
935 */ |
|
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 int |
|
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
25575
diff
changeset
|
937 cmd_is_name_only(char_u *arg) |
|
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
25575
diff
changeset
|
938 { |
|
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
25575
diff
changeset
|
939 char_u *p = arg; |
|
26228
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
940 char_u *alias = NULL; |
|
25680
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
25575
diff
changeset
|
941 int name_only = FALSE; |
|
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
25575
diff
changeset
|
942 |
|
26228
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
943 if (*p == '@') |
|
25680
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
25575
diff
changeset
|
944 { |
|
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
25575
diff
changeset
|
945 ++p; |
|
26228
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
946 if (*p != NUL) |
|
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
|
947 ++p; |
|
25680
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
948 } |
|
28895
228154db3ce6
patch 8.2.4970: "eval 123" gives an error, "eval 'abc'" does not
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
949 else if (*p == '\'' || *p == '"') |
|
228154db3ce6
patch 8.2.4970: "eval 123" gives an error, "eval 'abc'" does not
Bram Moolenaar <Bram@vim.org>
parents:
28712
diff
changeset
|
950 { |
|
228154db3ce6
patch 8.2.4970: "eval 123" gives an error, "eval 'abc'" does not
Bram Moolenaar <Bram@vim.org>
parents:
28712
diff
changeset
|
951 int r; |
|
228154db3ce6
patch 8.2.4970: "eval 123" gives an error, "eval 'abc'" does not
Bram Moolenaar <Bram@vim.org>
parents:
28712
diff
changeset
|
952 |
|
228154db3ce6
patch 8.2.4970: "eval 123" gives an error, "eval 'abc'" does not
Bram Moolenaar <Bram@vim.org>
parents:
28712
diff
changeset
|
953 if (*p == '"') |
|
228154db3ce6
patch 8.2.4970: "eval 123" gives an error, "eval 'abc'" does not
Bram Moolenaar <Bram@vim.org>
parents:
28712
diff
changeset
|
954 r = eval_string(&p, NULL, FALSE, FALSE); |
|
228154db3ce6
patch 8.2.4970: "eval 123" gives an error, "eval 'abc'" does not
Bram Moolenaar <Bram@vim.org>
parents:
28712
diff
changeset
|
955 else |
|
228154db3ce6
patch 8.2.4970: "eval 123" gives an error, "eval 'abc'" does not
Bram Moolenaar <Bram@vim.org>
parents:
28712
diff
changeset
|
956 r = eval_lit_string(&p, NULL, FALSE, FALSE); |
|
228154db3ce6
patch 8.2.4970: "eval 123" gives an error, "eval 'abc'" does not
Bram Moolenaar <Bram@vim.org>
parents:
28712
diff
changeset
|
957 if (r == FAIL) |
|
228154db3ce6
patch 8.2.4970: "eval 123" gives an error, "eval 'abc'" does not
Bram Moolenaar <Bram@vim.org>
parents:
28712
diff
changeset
|
958 return FALSE; |
|
228154db3ce6
patch 8.2.4970: "eval 123" gives an error, "eval 'abc'" does not
Bram Moolenaar <Bram@vim.org>
parents:
28712
diff
changeset
|
959 } |
|
26228
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
960 else |
|
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
|
961 { |
|
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
|
962 if (*p == '&') |
|
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
963 { |
|
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
|
964 ++p; |
|
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
965 if (STRNCMP("l:", p, 2) == 0 || STRNCMP("g:", p, 2) == 0) |
|
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
966 p += 2; |
|
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
26051
diff
changeset
|
967 } |
|
26250
3711e56f7e7b
patch 8.2.3656: Vim9: no error for an evironment variable by itself
Bram Moolenaar <Bram@vim.org>
parents:
26236
diff
changeset
|
968 else if (*p == '$') |
|
3711e56f7e7b
patch 8.2.3656: Vim9: no error for an evironment variable by itself
Bram Moolenaar <Bram@vim.org>
parents:
26236
diff
changeset
|
969 ++p; |
|
30071
6a8c2ff5b2ef
patch 9.0.0373: Coverity warns for NULL check and unused return value
Bram Moolenaar <Bram@vim.org>
parents:
28895
diff
changeset
|
970 (void)get_name_len(&p, &alias, FALSE, FALSE); |
|
26228
269ecc6d69bc
patch 8.2.3645: Vim9: The "no effect" error is not given for all registers
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
971 } |
|
25680
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
25575
diff
changeset
|
972 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:
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diff
changeset
|
973 vim_free(alias); |
|
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
974 return name_only; |
|
8556ded8a462
patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
975 } |
| 7 | 976 |
| 977 /* | |
|
17620
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
978 * ":eval". |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
979 */ |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
980 void |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
981 ex_eval(exarg_T *eap) |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
982 { |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
983 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
|
984 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
|
985 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
|
986 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
|
987 |
|
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
|
988 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
|
989 name_only = cmd_is_name_only(eap->arg); |
|
17620
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patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
990 |
|
21118
b0baa80cb53f
patch 8.2.1110: Vim9: line continuation does not work in function arguments
Bram Moolenaar <Bram@vim.org>
parents:
21058
diff
changeset
|
991 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
|
992 |
|
20996
3af71cbcfdbe
patch 8.2.1049: Vim9: leaking memory when using continuation line
Bram Moolenaar <Bram@vim.org>
parents:
20992
diff
changeset
|
993 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
|
994 { |
|
17620
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
995 clear_tv(&tv); |
|
28696
a090c60278f5
patch 8.2.4872: Vim9: no error for using an expression only
Bram Moolenaar <Bram@vim.org>
parents:
28299
diff
changeset
|
996 if (in_vim9script() && name_only |
|
a090c60278f5
patch 8.2.4872: Vim9: no error for using an expression only
Bram Moolenaar <Bram@vim.org>
parents:
28299
diff
changeset
|
997 && (evalarg.eval_tofree == NULL |
|
a090c60278f5
patch 8.2.4872: Vim9: no error for using an expression only
Bram Moolenaar <Bram@vim.org>
parents:
28299
diff
changeset
|
998 || ends_excmd2(evalarg.eval_tofree, |
|
a090c60278f5
patch 8.2.4872: Vim9: no error for using an expression only
Bram Moolenaar <Bram@vim.org>
parents:
28299
diff
changeset
|
999 skipwhite(evalarg.eval_tofree)))) |
|
a090c60278f5
patch 8.2.4872: Vim9: no error for using an expression only
Bram Moolenaar <Bram@vim.org>
parents:
28299
diff
changeset
|
1000 { |
|
a090c60278f5
patch 8.2.4872: Vim9: no error for using an expression only
Bram Moolenaar <Bram@vim.org>
parents:
28299
diff
changeset
|
1001 SOURCING_LNUM = lnum; |
|
25202
e5d85e83a887
patch 8.2.3137: Vim9: no error when a line only has a variable name
Bram Moolenaar <Bram@vim.org>
parents:
25180
diff
changeset
|
1002 semsg(_(e_expression_without_effect_str), eap->arg); |
|
28696
a090c60278f5
patch 8.2.4872: Vim9: no error for using an expression only
Bram Moolenaar <Bram@vim.org>
parents:
28299
diff
changeset
|
1003 } |
|
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
|
1004 } |
|
21058
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
parents:
21040
diff
changeset
|
1005 |
|
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
parents:
21040
diff
changeset
|
1006 clear_evalarg(&evalarg, eap); |
|
17620
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patch 8.1.1807: more functions can be used as a method
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parents:
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diff
changeset
|
1007 } |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
1008 |
|
072efa9ca875
patch 8.1.1807: more functions can be used as a method
Bram Moolenaar <Bram@vim.org>
parents:
16825
diff
changeset
|
1009 /* |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1010 * 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
|
1011 * 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
|
1012 */ |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1013 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
|
1014 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
|
1015 { |
|
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1016 ++cstack->cs_idx; |
|
24022
29b15fbc2bcb
patch 8.2.2553: Vim9: Cannot put "|" after "{"
Bram Moolenaar <Bram@vim.org>
parents:
23752
diff
changeset
|
1017 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
|
1018 { |
|
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
|
1019 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
|
1020 |
|
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
|
1021 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
|
1022 cstack->cs_block_id[cstack->cs_idx] = ++si->sn_last_block_id; |
|
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1023 si->sn_current_block_id = si->sn_last_block_id; |
|
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|
1024 } |
|
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|
1025 else |
|
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1026 { |
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1027 // Just in case in_vim9script() does not return the same value when the |
|
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|
1028 // block ends. |
|
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|
1029 cstack->cs_script_var_len[cstack->cs_idx] = 0; |
|
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|
1030 cstack->cs_block_id[cstack->cs_idx] = 0; |
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|
1031 } |
|
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|
1032 } |
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|
1033 |
|
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|
1034 static void |
|
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|
1035 leave_block(cstack_T *cstack) |
|
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1036 { |
|
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|
1037 if (in_vim9script() && SCRIPT_ID_VALID(current_sctx.sc_sid)) |
|
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|
1038 { |
|
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|
1039 scriptitem_T *si = SCRIPT_ITEM(current_sctx.sc_sid); |
|
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|
1040 int i; |
|
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71b57779177d
patch 8.2.1870: Vim9: no need to keep all script variables
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|
1041 int func_defined = |
|
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patch 8.2.1870: Vim9: no need to keep all script variables
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|
1042 cstack->cs_flags[cstack->cs_idx] & CSF_FUNC_DEF; |
|
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1043 |
|
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|
1044 for (i = cstack->cs_script_var_len[cstack->cs_idx]; |
|
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|
1045 i < si->sn_var_vals.ga_len; ++i) |
|
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1046 { |
|
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|
1047 svar_T *sv = ((svar_T *)si->sn_var_vals.ga_data) + i; |
|
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1048 |
|
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Bram Moolenaar <Bram@vim.org>
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|
1049 // sv_name is set to NULL if it was already removed. This happens |
|
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|
1050 // when it was defined in an inner block and no functions were |
|
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|
1051 // defined there. |
|
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|
1052 if (sv->sv_name != NULL) |
|
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|
1053 // Remove a variable declared inside the block, if it still |
|
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|
1054 // exists, from sn_vars and move the value into sn_all_vars |
|
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|
1055 // if "func_defined" is non-zero. |
|
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|
1056 hide_script_var(si, i, func_defined); |
|
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|
1057 } |
|
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|
1058 |
|
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|
1059 if (cstack->cs_idx == 0) |
|
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|
1060 si->sn_current_block_id = 0; |
|
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|
1061 else |
|
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|
1062 si->sn_current_block_id = cstack->cs_block_id[cstack->cs_idx - 1]; |
|
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|
1063 } |
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|
1064 --cstack->cs_idx; |
|
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1065 } |
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|
1066 |
|
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|
1067 /* |
| 7 | 1068 * ":if". |
| 1069 */ | |
| 1070 void | |
|
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changeset
|
1071 ex_if(exarg_T *eap) |
| 7 | 1072 { |
| 1073 int error; | |
| 1074 int skip; | |
| 1075 int result; | |
|
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|
1076 cstack_T *cstack = eap->cstack; |
| 7 | 1077 |
| 1078 if (cstack->cs_idx == CSTACK_LEN - 1) | |
|
26917
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|
1079 eap->errmsg = _(e_if_nesting_too_deep); |
| 7 | 1080 else |
| 1081 { | |
|
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|
1082 enter_block(cstack); |
| 7 | 1083 cstack->cs_flags[cstack->cs_idx] = 0; |
| 1084 | |
| 1085 /* | |
|
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|
1086 * Don't do something after an error, interrupt, or throw, or when |
|
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|
1087 * there is a surrounding conditional and it was not active. |
| 7 | 1088 */ |
| 1089 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0 | |
| 1090 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE)); | |
| 1091 | |
|
30598
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patch 9.0.0634: evaluating "expr" options has more overhead than needed
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changeset
|
1092 result = eval_to_bool(eap->arg, &error, eap, skip, FALSE); |
| 7 | 1093 |
| 1094 if (!skip && !error) | |
| 1095 { | |
| 1096 if (result) | |
| 1097 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE | CSF_TRUE; | |
| 1098 } | |
| 1099 else | |
|
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|
1100 // set TRUE, so this conditional will never get active |
| 7 | 1101 cstack->cs_flags[cstack->cs_idx] = CSF_TRUE; |
| 1102 } | |
| 1103 } | |
| 1104 | |
| 1105 /* | |
| 1106 * ":endif". | |
| 1107 */ | |
| 1108 void | |
|
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|
1109 ex_endif(exarg_T *eap) |
| 7 | 1110 { |
|
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|
1111 cstack_T *cstack = eap->cstack; |
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|
1112 |
|
25575
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patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
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changeset
|
1113 if (cmdmod_error(FALSE)) |
|
24222
a2e6029d354e
patch 8.2.2652: Vim9: can use command modifier without an effect
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changeset
|
1114 return; |
| 7 | 1115 did_endif = TRUE; |
|
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|
1116 if (cstack->cs_idx < 0 |
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|
1117 || (cstack->cs_flags[cstack->cs_idx] |
|
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|
1118 & (CSF_WHILE | CSF_FOR | CSF_TRY | CSF_BLOCK))) |
|
21459
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|
1119 eap->errmsg = _(e_endif_without_if); |
| 7 | 1120 else |
| 1121 { | |
| 1122 /* | |
| 1123 * When debugging or a breakpoint was encountered, display the debug | |
| 1124 * prompt (if not already done). This shows the user that an ":endif" | |
| 1125 * is executed when the ":if" or a previous ":elseif" was not TRUE. | |
| 1126 * Handle a ">quit" debug command as if an interrupt had occurred before | |
| 1127 * the ":endif". That is, throw an interrupt exception if appropriate. | |
| 1128 * Doing this here prevents an exception for a parsing error being | |
| 1129 * discarded by throwing the interrupt exception later on. | |
| 1130 */ | |
|
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|
1131 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRUE) |
| 359 | 1132 && dbg_check_skipped(eap)) |
|
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|
1133 (void)do_intthrow(cstack); |
| 7 | 1134 |
|
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|
1135 leave_block(cstack); |
| 7 | 1136 } |
| 1137 } | |
| 1138 | |
| 1139 /* | |
| 1140 * ":else" and ":elseif". | |
| 1141 */ | |
| 1142 void | |
|
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changeset
|
1143 ex_else(exarg_T *eap) |
| 7 | 1144 { |
| 1145 int error; | |
| 1146 int skip; | |
| 1147 int result; | |
|
18904
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changeset
|
1148 cstack_T *cstack = eap->cstack; |
| 7 | 1149 |
| 1150 /* | |
| 1151 * Don't do something after an error, interrupt, or throw, or when there is | |
| 1152 * a surrounding conditional and it was not active. | |
| 1153 */ | |
| 1154 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0 | |
| 1155 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE)); | |
| 1156 | |
| 1157 if (cstack->cs_idx < 0 | |
| 75 | 1158 || (cstack->cs_flags[cstack->cs_idx] |
|
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|
1159 & (CSF_WHILE | CSF_FOR | CSF_TRY | CSF_BLOCK))) |
| 7 | 1160 { |
| 1161 if (eap->cmdidx == CMD_else) | |
| 1162 { | |
|
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changeset
|
1163 eap->errmsg = _(e_else_without_if); |
| 7 | 1164 return; |
| 1165 } | |
|
21459
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changeset
|
1166 eap->errmsg = _(e_elseif_without_if); |
| 7 | 1167 skip = TRUE; |
| 1168 } | |
| 1169 else if (cstack->cs_flags[cstack->cs_idx] & CSF_ELSE) | |
| 1170 { | |
| 1171 if (eap->cmdidx == CMD_else) | |
| 1172 { | |
|
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|
1173 eap->errmsg = _(e_multiple_else); |
| 7 | 1174 return; |
| 1175 } | |
|
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|
1176 eap->errmsg = _(e_elseif_after_else); |
| 7 | 1177 skip = TRUE; |
| 1178 } | |
| 1179 | |
|
28712
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|
1180 if (cstack->cs_idx >= 0) |
|
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|
1181 { |
|
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changeset
|
1182 // Variables declared in the previous block can no longer be |
|
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|
1183 // used. Needs to be done before setting "cs_flags". |
|
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|
1184 leave_block(cstack); |
|
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|
1185 enter_block(cstack); |
|
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1186 } |
|
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patch 8.2.4873: Vim9: using "else" differs from using "endif/if !cond"
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|
1187 |
|
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changeset
|
1188 // if skipping or the ":if" was TRUE, reset ACTIVE, otherwise set it |
| 7 | 1189 if (skip || cstack->cs_flags[cstack->cs_idx] & CSF_TRUE) |
| 1190 { | |
| 1191 if (eap->errmsg == NULL) | |
| 1192 cstack->cs_flags[cstack->cs_idx] = CSF_TRUE; | |
|
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changeset
|
1193 skip = TRUE; // don't evaluate an ":elseif" |
| 7 | 1194 } |
| 1195 else | |
| 1196 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE; | |
| 1197 | |
| 1198 /* | |
| 1199 * When debugging or a breakpoint was encountered, display the debug prompt | |
| 1200 * (if not already done). This shows the user that an ":else" or ":elseif" | |
| 1201 * is executed when the ":if" or previous ":elseif" was not TRUE. Handle | |
| 1202 * a ">quit" debug command as if an interrupt had occurred before the | |
| 1203 * ":else" or ":elseif". That is, set "skip" and throw an interrupt | |
| 1204 * exception if appropriate. Doing this here prevents that an exception | |
| 1205 * for a parsing errors is discarded when throwing the interrupt exception | |
| 1206 * later on. | |
| 1207 */ | |
| 1208 if (!skip && dbg_check_skipped(eap) && got_int) | |
| 1209 { | |
| 1210 (void)do_intthrow(cstack); | |
| 1211 skip = TRUE; | |
| 1212 } | |
| 1213 | |
| 1214 if (eap->cmdidx == CMD_elseif) | |
| 1215 { | |
|
28299
fae7d94220e3
patch 8.2.4675: no error for missing expression after :elseif
Bram Moolenaar <Bram@vim.org>
parents:
27948
diff
changeset
|
1216 // When skipping we ignore most errors, but a missing expression is |
|
fae7d94220e3
patch 8.2.4675: no error for missing expression after :elseif
Bram Moolenaar <Bram@vim.org>
parents:
27948
diff
changeset
|
1217 // wrong, perhaps it should have been "else". |
|
31069
39698292a849
patch 9.0.0869: bogus error when string used after :elseif
Bram Moolenaar <Bram@vim.org>
parents:
30598
diff
changeset
|
1218 // A double quote here is the start of a string, not a comment. |
|
39698292a849
patch 9.0.0869: bogus error when string used after :elseif
Bram Moolenaar <Bram@vim.org>
parents:
30598
diff
changeset
|
1219 if (skip && *eap->arg != '"' && ends_excmd(*eap->arg)) |
|
28299
fae7d94220e3
patch 8.2.4675: no error for missing expression after :elseif
Bram Moolenaar <Bram@vim.org>
parents:
27948
diff
changeset
|
1220 semsg(_(e_invalid_expression_str), eap->arg); |
|
fae7d94220e3
patch 8.2.4675: no error for missing expression after :elseif
Bram Moolenaar <Bram@vim.org>
parents:
27948
diff
changeset
|
1221 else |
|
30598
37aa9fd2ed72
patch 9.0.0634: evaluating "expr" options has more overhead than needed
Bram Moolenaar <Bram@vim.org>
parents:
30483
diff
changeset
|
1222 result = eval_to_bool(eap->arg, &error, eap, skip, FALSE); |
|
20113
2c23053c654a
patch 8.2.0612: Vim9: no check for space before #comment
Bram Moolenaar <Bram@vim.org>
parents:
20029
diff
changeset
|
1223 |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1224 // When throwing error exceptions, we want to throw always the first |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1225 // of several errors in a row. This is what actually happens when |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1226 // a conditional error was detected above and there is another failure |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1227 // when parsing the expression. Since the skip flag is set in this |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1228 // case, the parsing error will be ignored by emsg(). |
| 7 | 1229 if (!skip && !error) |
| 1230 { | |
| 1231 if (result) | |
| 1232 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE | CSF_TRUE; | |
| 1233 else | |
| 1234 cstack->cs_flags[cstack->cs_idx] = 0; | |
| 1235 } | |
| 1236 else if (eap->errmsg == NULL) | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1237 // set TRUE, so this conditional will never get active |
| 7 | 1238 cstack->cs_flags[cstack->cs_idx] = CSF_TRUE; |
| 1239 } | |
| 1240 else | |
| 1241 cstack->cs_flags[cstack->cs_idx] |= CSF_ELSE; | |
| 1242 } | |
| 1243 | |
| 1244 /* | |
| 75 | 1245 * Handle ":while" and ":for". |
| 7 | 1246 */ |
| 1247 void | |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1248 ex_while(exarg_T *eap) |
| 7 | 1249 { |
| 1250 int error; | |
| 1251 int skip; | |
| 1252 int result; | |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
1253 cstack_T *cstack = eap->cstack; |
|
30249
c0f0118b6790
patch 9.0.0460: loop variable can't be found
Bram Moolenaar <Bram@vim.org>
parents:
30247
diff
changeset
|
1254 int prev_cs_flags = 0; |
| 7 | 1255 |
| 1256 if (cstack->cs_idx == CSTACK_LEN - 1) | |
|
26917
d91aea2a612c
patch 8.2.3987: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26887
diff
changeset
|
1257 eap->errmsg = _(e_while_for_nesting_too_deep); |
| 7 | 1258 else |
| 1259 { | |
| 1260 /* | |
| 75 | 1261 * The loop flag is set when we have jumped back from the matching |
| 1262 * ":endwhile" or ":endfor". When not set, need to initialise this | |
| 1263 * cstack entry. | |
| 7 | 1264 */ |
| 75 | 1265 if ((cstack->cs_lflags & CSL_HAD_LOOP) == 0) |
| 7 | 1266 { |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1267 enter_block(cstack); |
| 75 | 1268 ++cstack->cs_looplevel; |
| 7 | 1269 cstack->cs_line[cstack->cs_idx] = -1; |
| 1270 } | |
|
24232
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1271 else |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1272 { |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1273 if (in_vim9script() && SCRIPT_ID_VALID(current_sctx.sc_sid)) |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1274 { |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1275 scriptitem_T *si = SCRIPT_ITEM(current_sctx.sc_sid); |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1276 int i; |
|
30247
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
parents:
30071
diff
changeset
|
1277 int first; |
|
25358
f03271631eb5
patch 8.2.3216: Vim9: crash when using variable in a loop at script level
Bram Moolenaar <Bram@vim.org>
parents:
25306
diff
changeset
|
1278 int func_defined = cstack->cs_flags[cstack->cs_idx] |
|
f03271631eb5
patch 8.2.3216: Vim9: crash when using variable in a loop at script level
Bram Moolenaar <Bram@vim.org>
parents:
25306
diff
changeset
|
1279 & CSF_FUNC_DEF; |
|
24232
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1280 |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1281 // Any variables defined in the previous round are no longer |
|
26236
9e6ddd7b91cd
patch 8.2.3649: Vim9: error for variable declared in while loop
Bram Moolenaar <Bram@vim.org>
parents:
26228
diff
changeset
|
1282 // visible. Keep the first one for ":for", it is the loop |
|
9e6ddd7b91cd
patch 8.2.3649: Vim9: error for variable declared in while loop
Bram Moolenaar <Bram@vim.org>
parents:
26228
diff
changeset
|
1283 // variable that we reuse every time around. |
|
30247
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
parents:
30071
diff
changeset
|
1284 // Do this backwards, so that vars defined in a later round are |
|
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
parents:
30071
diff
changeset
|
1285 // found first. |
|
30399
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
Bram Moolenaar <Bram@vim.org>
parents:
30249
diff
changeset
|
1286 first = cstack->cs_script_var_len[cstack->cs_idx]; |
|
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
Bram Moolenaar <Bram@vim.org>
parents:
30249
diff
changeset
|
1287 if (eap->cmdidx == CMD_for) |
|
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
Bram Moolenaar <Bram@vim.org>
parents:
30249
diff
changeset
|
1288 { |
|
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
Bram Moolenaar <Bram@vim.org>
parents:
30249
diff
changeset
|
1289 forinfo_T *fi = cstack->cs_forinfo[cstack->cs_idx]; |
|
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
Bram Moolenaar <Bram@vim.org>
parents:
30249
diff
changeset
|
1290 |
|
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
Bram Moolenaar <Bram@vim.org>
parents:
30249
diff
changeset
|
1291 first += fi == NULL || fi->fi_varcount == 0 |
|
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
Bram Moolenaar <Bram@vim.org>
parents:
30249
diff
changeset
|
1292 ? 1 : fi->fi_varcount; |
|
7fc27d7ce3b0
patch 9.0.0535: closure gets wrong value in for loop with two loop variables
Bram Moolenaar <Bram@vim.org>
parents:
30249
diff
changeset
|
1293 } |
|
30247
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
parents:
30071
diff
changeset
|
1294 for (i = si->sn_var_vals.ga_len - 1; i >= first; --i) |
|
24232
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
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24222
diff
changeset
|
1295 { |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1296 svar_T *sv = ((svar_T *)si->sn_var_vals.ga_data) + i; |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1297 |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1298 // sv_name is set to NULL if it was already removed. This |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1299 // happens when it was defined in an inner block and no |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1300 // functions were defined there. |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1301 if (sv->sv_name != NULL) |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1302 // Remove a variable declared inside the block, if it |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1303 // still exists, from sn_vars. |
|
25358
f03271631eb5
patch 8.2.3216: Vim9: crash when using variable in a loop at script level
Bram Moolenaar <Bram@vim.org>
parents:
25306
diff
changeset
|
1304 hide_script_var(si, i, func_defined); |
|
24232
3058ed6db36f
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Bram Moolenaar <Bram@vim.org>
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24222
diff
changeset
|
1305 } |
|
30247
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
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30071
diff
changeset
|
1306 |
|
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
parents:
30071
diff
changeset
|
1307 // Start a new block ID, so that variables defined inside the |
|
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
parents:
30071
diff
changeset
|
1308 // loop are created new and not shared with the previous loop. |
|
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
parents:
30071
diff
changeset
|
1309 // Matters when used in a closure. |
|
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
parents:
30071
diff
changeset
|
1310 cstack->cs_block_id[cstack->cs_idx] = ++si->sn_last_block_id; |
|
327bca7b70ea
patch 9.0.0459: Vim9: block in for loop doesn't behave like a code block
Bram Moolenaar <Bram@vim.org>
parents:
30071
diff
changeset
|
1311 si->sn_current_block_id = si->sn_last_block_id; |
|
24232
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1312 } |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1313 } |
|
30249
c0f0118b6790
patch 9.0.0460: loop variable can't be found
Bram Moolenaar <Bram@vim.org>
parents:
30247
diff
changeset
|
1314 prev_cs_flags = cstack->cs_flags[cstack->cs_idx]; |
| 75 | 1315 cstack->cs_flags[cstack->cs_idx] = |
| 1316 eap->cmdidx == CMD_while ? CSF_WHILE : CSF_FOR; | |
| 7 | 1317 |
| 1318 /* | |
| 75 | 1319 * Don't do something after an error, interrupt, or throw, or when |
| 1320 * there is a surrounding conditional and it was not active. | |
| 7 | 1321 */ |
| 1322 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0 | |
| 1323 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE)); | |
| 75 | 1324 if (eap->cmdidx == CMD_while) |
| 1325 { | |
| 1326 /* | |
| 1327 * ":while bool-expr" | |
| 1328 */ | |
|
30598
37aa9fd2ed72
patch 9.0.0634: evaluating "expr" options has more overhead than needed
Bram Moolenaar <Bram@vim.org>
parents:
30483
diff
changeset
|
1329 result = eval_to_bool(eap->arg, &error, eap, skip, FALSE); |
| 75 | 1330 } |
| 1331 else | |
| 1332 { | |
|
30249
c0f0118b6790
patch 9.0.0460: loop variable can't be found
Bram Moolenaar <Bram@vim.org>
parents:
30247
diff
changeset
|
1333 forinfo_T *fi; |
|
21058
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
parents:
21040
diff
changeset
|
1334 evalarg_T evalarg; |
|
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
parents:
21040
diff
changeset
|
1335 |
|
24232
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1336 /* |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
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changeset
|
1337 * ":for var in list-expr" |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
parents:
24222
diff
changeset
|
1338 */ |
|
25358
f03271631eb5
patch 8.2.3216: Vim9: crash when using variable in a loop at script level
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1339 fill_evalarg_from_eap(&evalarg, eap, skip); |
| 75 | 1340 if ((cstack->cs_lflags & CSL_HAD_LOOP) != 0) |
| 1341 { | |
|
18779
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parents:
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diff
changeset
|
1342 // Jumping here from a ":continue" or ":endfor": use the |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1343 // previously evaluated list. |
| 79 | 1344 fi = cstack->cs_forinfo[cstack->cs_idx]; |
| 75 | 1345 error = FALSE; |
|
21058
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1346 |
|
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1347 // 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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diff
changeset
|
1348 skip_for_lines(fi, &evalarg); |
| 75 | 1349 } |
| 1350 else | |
| 1351 { | |
|
25180
6523cd41fa54
patch 8.2.3126: Vim9: for loop error reports wrong line number
Bram Moolenaar <Bram@vim.org>
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25124
diff
changeset
|
1352 long save_lnum = SOURCING_LNUM; |
|
6523cd41fa54
patch 8.2.3126: Vim9: for loop error reports wrong line number
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1353 |
|
18779
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patch 8.1.2379: using old C style comments
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changeset
|
1354 // Evaluate the argument and get the info in a structure. |
|
21058
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
parents:
21040
diff
changeset
|
1355 fi = eval_for_line(eap->arg, &error, eap, &evalarg); |
| 79 | 1356 cstack->cs_forinfo[cstack->cs_idx] = fi; |
|
25180
6523cd41fa54
patch 8.2.3126: Vim9: for loop error reports wrong line number
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1357 |
|
6523cd41fa54
patch 8.2.3126: Vim9: for loop error reports wrong line number
Bram Moolenaar <Bram@vim.org>
parents:
25124
diff
changeset
|
1358 // Errors should use the first line number. |
|
6523cd41fa54
patch 8.2.3126: Vim9: for loop error reports wrong line number
Bram Moolenaar <Bram@vim.org>
parents:
25124
diff
changeset
|
1359 SOURCING_LNUM = save_lnum; |
| 75 | 1360 } |
| 1361 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1362 // use the element at the start of the list and advance |
| 75 | 1363 if (!error && fi != NULL && !skip) |
| 1364 result = next_for_item(fi, eap->arg); | |
| 1365 else | |
| 1366 result = FALSE; | |
|
30249
c0f0118b6790
patch 9.0.0460: loop variable can't be found
Bram Moolenaar <Bram@vim.org>
parents:
30247
diff
changeset
|
1367 if (fi != NULL) |
|
c0f0118b6790
patch 9.0.0460: loop variable can't be found
Bram Moolenaar <Bram@vim.org>
parents:
30247
diff
changeset
|
1368 // OR all the cs_flags together, if a function was defined in |
|
c0f0118b6790
patch 9.0.0460: loop variable can't be found
Bram Moolenaar <Bram@vim.org>
parents:
30247
diff
changeset
|
1369 // any round then the loop variable may have been used. |
|
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patch 9.0.0460: loop variable can't be found
Bram Moolenaar <Bram@vim.org>
parents:
30247
diff
changeset
|
1370 fi->fi_cs_flags |= prev_cs_flags; |
| 75 | 1371 |
| 1372 if (!result) | |
| 1373 { | |
|
30249
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patch 9.0.0460: loop variable can't be found
Bram Moolenaar <Bram@vim.org>
parents:
30247
diff
changeset
|
1374 // If a function was defined in any round then set the |
|
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patch 9.0.0460: loop variable can't be found
Bram Moolenaar <Bram@vim.org>
parents:
30247
diff
changeset
|
1375 // CSF_FUNC_DEF flag now, so that it's seen by leave_block(). |
|
c0f0118b6790
patch 9.0.0460: loop variable can't be found
Bram Moolenaar <Bram@vim.org>
parents:
30247
diff
changeset
|
1376 if (fi != NULL && (fi->fi_cs_flags & CSF_FUNC_DEF)) |
|
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patch 9.0.0460: loop variable can't be found
Bram Moolenaar <Bram@vim.org>
parents:
30247
diff
changeset
|
1377 cstack->cs_flags[cstack->cs_idx] |= CSF_FUNC_DEF; |
|
c0f0118b6790
patch 9.0.0460: loop variable can't be found
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1378 |
| 75 | 1379 free_for_info(fi); |
| 79 | 1380 cstack->cs_forinfo[cstack->cs_idx] = NULL; |
| 75 | 1381 } |
|
21058
111f877e63d9
patch 8.2.1080: Vim9: no line break allowed in a for loop
Bram Moolenaar <Bram@vim.org>
parents:
21040
diff
changeset
|
1382 clear_evalarg(&evalarg, eap); |
| 75 | 1383 } |
| 7 | 1384 |
| 1385 /* | |
| 75 | 1386 * If this cstack entry was just initialised and is active, set the |
| 1387 * loop flag, so do_cmdline() will set the line number in cs_line[]. | |
| 1388 * If executing the command a second time, clear the loop flag. | |
| 7 | 1389 */ |
| 1390 if (!skip && !error && result) | |
| 1391 { | |
| 75 | 1392 cstack->cs_flags[cstack->cs_idx] |= (CSF_ACTIVE | CSF_TRUE); |
| 1393 cstack->cs_lflags ^= CSL_HAD_LOOP; | |
| 7 | 1394 } |
| 1395 else | |
| 1396 { | |
| 75 | 1397 cstack->cs_lflags &= ~CSL_HAD_LOOP; |
|
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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
|
1398 // If the ":while" evaluates to FALSE or ":for" is past the end of |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1399 // the list, show the debug prompt at the ":endwhile"/":endfor" as |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
1400 // if there was a ":break" in a ":while"/":for" evaluating to |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1401 // TRUE. |
| 7 | 1402 if (!skip && !error) |
| 1403 cstack->cs_flags[cstack->cs_idx] |= CSF_TRUE; | |
| 1404 } | |
| 1405 } | |
| 1406 } | |
| 1407 | |
| 1408 /* | |
| 1409 * ":continue" | |
| 1410 */ | |
| 1411 void | |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1412 ex_continue(exarg_T *eap) |
| 7 | 1413 { |
| 1414 int idx; | |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
1415 cstack_T *cstack = eap->cstack; |
| 7 | 1416 |
| 75 | 1417 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0) |
|
26887
612339679616
patch 8.2.3972: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1418 eap->errmsg = _(e_continue_without_while_or_for); |
| 7 | 1419 else |
| 1420 { | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1421 // Try to find the matching ":while". This might stop at a try |
|
8f05b3cf8557
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parents:
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diff
changeset
|
1422 // conditional not in its finally clause (which is then to be executed |
|
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
|
1423 // next). Therefore, inactivate all conditionals except the ":while" |
|
18779
8f05b3cf8557
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1424 // itself (if reached). |
| 75 | 1425 idx = cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, FALSE); |
| 840 | 1426 if (idx >= 0 && (cstack->cs_flags[idx] & (CSF_WHILE | CSF_FOR))) |
| 7 | 1427 { |
| 79 | 1428 rewind_conditionals(cstack, idx, CSF_TRY, &cstack->cs_trylevel); |
| 7 | 1429 |
| 1430 /* | |
| 75 | 1431 * Set CSL_HAD_CONT, so do_cmdline() will jump back to the |
| 7 | 1432 * matching ":while". |
| 1433 */ | |
|
18779
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diff
changeset
|
1434 cstack->cs_lflags |= CSL_HAD_CONT; // let do_cmdline() handle it |
| 7 | 1435 } |
| 1436 else | |
| 1437 { | |
|
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
|
1438 // If a try conditional not in its finally clause is reached first, |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1439 // make the ":continue" pending for execution at the ":endtry". |
| 7 | 1440 cstack->cs_pending[idx] = CSTP_CONTINUE; |
| 1441 report_make_pending(CSTP_CONTINUE, NULL); | |
| 1442 } | |
| 1443 } | |
| 1444 } | |
| 1445 | |
| 1446 /* | |
| 1447 * ":break" | |
| 1448 */ | |
| 1449 void | |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1450 ex_break(exarg_T *eap) |
| 7 | 1451 { |
| 1452 int idx; | |
|
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
|
1453 cstack_T *cstack = eap->cstack; |
| 7 | 1454 |
| 75 | 1455 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0) |
|
26887
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patch 8.2.3972: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26883
diff
changeset
|
1456 eap->errmsg = _(e_break_without_while_or_for); |
| 7 | 1457 else |
| 1458 { | |
|
18779
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diff
changeset
|
1459 // Inactivate conditionals until the matching ":while" or a try |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
1460 // conditional not in its finally clause (which is then to be |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
1461 // executed next) is found. In the latter case, make the ":break" |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1462 // pending for execution at the ":endtry". |
| 75 | 1463 idx = cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, TRUE); |
| 840 | 1464 if (idx >= 0 && !(cstack->cs_flags[idx] & (CSF_WHILE | CSF_FOR))) |
| 7 | 1465 { |
| 1466 cstack->cs_pending[idx] = CSTP_BREAK; | |
| 1467 report_make_pending(CSTP_BREAK, NULL); | |
| 1468 } | |
| 1469 } | |
| 1470 } | |
| 1471 | |
| 1472 /* | |
| 75 | 1473 * ":endwhile" and ":endfor" |
| 7 | 1474 */ |
| 1475 void | |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1476 ex_endwhile(exarg_T *eap) |
| 7 | 1477 { |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
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changeset
|
1478 cstack_T *cstack = eap->cstack; |
|
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1479 int idx; |
|
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1480 char *err; |
|
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1481 int csf; |
|
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
1482 int fl; |
| 7 | 1483 |
|
25575
9f691e8a74e3
patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
Bram Moolenaar <Bram@vim.org>
parents:
25537
diff
changeset
|
1484 if (cmdmod_error(TRUE)) |
|
24222
a2e6029d354e
patch 8.2.2652: Vim9: can use command modifier without an effect
Bram Moolenaar <Bram@vim.org>
parents:
24022
diff
changeset
|
1485 return; |
|
a2e6029d354e
patch 8.2.2652: Vim9: can use command modifier without an effect
Bram Moolenaar <Bram@vim.org>
parents:
24022
diff
changeset
|
1486 |
| 75 | 1487 if (eap->cmdidx == CMD_endwhile) |
| 1488 { | |
|
26865
bce848ec8b1b
patch 8.2.3961: error messages are spread out
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parents:
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diff
changeset
|
1489 err = e_endwhile_without_while; |
| 75 | 1490 csf = CSF_WHILE; |
| 1491 } | |
| 1492 else | |
| 1493 { | |
|
26865
bce848ec8b1b
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parents:
26861
diff
changeset
|
1494 err = e_endfor_without_for; |
| 75 | 1495 csf = CSF_FOR; |
| 1496 } | |
| 1497 | |
| 1498 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0) | |
|
21459
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patch 8.2.1280: Ex command error cannot contain an argument
Bram Moolenaar <Bram@vim.org>
parents:
21118
diff
changeset
|
1499 eap->errmsg = _(err); |
| 7 | 1500 else |
| 1501 { | |
|
25905
892f937358ea
patch 8.2.3486: illegal memory access with invalid sequence of commands
Bram Moolenaar <Bram@vim.org>
parents:
25889
diff
changeset
|
1502 fl = cstack->cs_flags[cstack->cs_idx]; |
| 75 | 1503 if (!(fl & csf)) |
| 7 | 1504 { |
|
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parents:
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changeset
|
1505 // If we are in a ":while" or ":for" but used the wrong endloop |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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parents:
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diff
changeset
|
1506 // command, do not rewind to the next enclosing ":for"/":while". |
| 75 | 1507 if (fl & CSF_WHILE) |
|
26952
b34ddbca305c
patch 8.2.4005: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26948
diff
changeset
|
1508 eap->errmsg = _(e_using_endfor_with_while); |
| 75 | 1509 else if (fl & CSF_FOR) |
|
26952
b34ddbca305c
patch 8.2.4005: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26948
diff
changeset
|
1510 eap->errmsg = _(e_using_endwhile_with_for); |
| 114 | 1511 } |
| 1512 if (!(fl & (CSF_WHILE | CSF_FOR))) | |
| 1513 { | |
| 1514 if (!(fl & CSF_TRY)) | |
|
26857
2aeea8611342
patch 8.2.3957: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26250
diff
changeset
|
1515 eap->errmsg = _(e_missing_endif); |
| 75 | 1516 else if (fl & CSF_FINALLY) |
|
26865
bce848ec8b1b
patch 8.2.3961: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26861
diff
changeset
|
1517 eap->errmsg = _(e_missing_endtry); |
|
18779
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parents:
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diff
changeset
|
1518 // Try to find the matching ":while" and report what's missing. |
| 7 | 1519 for (idx = cstack->cs_idx; idx > 0; --idx) |
| 1520 { | |
| 75 | 1521 fl = cstack->cs_flags[idx]; |
| 1522 if ((fl & CSF_TRY) && !(fl & CSF_FINALLY)) | |
| 7 | 1523 { |
|
18779
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parents:
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diff
changeset
|
1524 // Give up at a try conditional not in its finally clause. |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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diff
changeset
|
1525 // Ignore the ":endwhile"/":endfor". |
|
21459
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patch 8.2.1280: Ex command error cannot contain an argument
Bram Moolenaar <Bram@vim.org>
parents:
21118
diff
changeset
|
1526 eap->errmsg = _(err); |
| 7 | 1527 return; |
| 1528 } | |
| 75 | 1529 if (fl & csf) |
| 7 | 1530 break; |
| 1531 } | |
|
18779
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patch 8.1.2379: using old C style comments
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changeset
|
1532 // Cleanup and rewind all contained (and unclosed) conditionals. |
| 75 | 1533 (void)cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, FALSE); |
| 7 | 1534 rewind_conditionals(cstack, idx, CSF_TRY, &cstack->cs_trylevel); |
| 1535 } | |
| 1536 | |
| 1537 /* | |
| 1538 * When debugging or a breakpoint was encountered, display the debug | |
| 1539 * prompt (if not already done). This shows the user that an | |
| 75 | 1540 * ":endwhile"/":endfor" is executed when the ":while" was not TRUE or |
| 1541 * after a ":break". Handle a ">quit" debug command as if an | |
| 1542 * interrupt had occurred before the ":endwhile"/":endfor". That is, | |
| 1543 * throw an interrupt exception if appropriate. Doing this here | |
| 1544 * prevents that an exception for a parsing error is discarded when | |
| 1545 * throwing the interrupt exception later on. | |
| 7 | 1546 */ |
| 1547 else if (cstack->cs_flags[cstack->cs_idx] & CSF_TRUE | |
| 1548 && !(cstack->cs_flags[cstack->cs_idx] & CSF_ACTIVE) | |
| 1549 && dbg_check_skipped(eap)) | |
| 1550 (void)do_intthrow(cstack); | |
| 1551 | |
|
24232
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
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24222
diff
changeset
|
1552 // Set loop flag, so do_cmdline() will jump back to the matching |
|
3058ed6db36f
patch 8.2.2657: Vim9: error message for declaring variable in for loop
Bram Moolenaar <Bram@vim.org>
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24222
diff
changeset
|
1553 // ":while" or ":for". |
| 75 | 1554 cstack->cs_lflags |= CSL_HAD_ENDLOOP; |
| 7 | 1555 } |
| 1556 } | |
| 1557 | |
|
22555
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1558 /* |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1559 * "{" start of a block in Vim9 script |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
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diff
changeset
|
1560 */ |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1561 void |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1562 ex_block(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
|
1563 { |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1564 cstack_T *cstack = eap->cstack; |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
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changeset
|
1565 |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
parents:
22553
diff
changeset
|
1566 if (cstack->cs_idx == CSTACK_LEN - 1) |
|
26917
d91aea2a612c
patch 8.2.3987: error messages are spread out
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26887
diff
changeset
|
1567 eap->errmsg = _(e_block_nesting_too_deep); |
|
22555
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Bram Moolenaar <Bram@vim.org>
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changeset
|
1568 else |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
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diff
changeset
|
1569 { |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1570 enter_block(cstack); |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
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changeset
|
1571 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
|
1572 } |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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changeset
|
1573 } |
|
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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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|
1574 |
|
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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
|
1575 /* |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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changeset
|
1576 * "}" end of a block in Vim9 script |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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diff
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|
1577 */ |
|
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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
|
1578 void |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1579 ex_endblock(exarg_T *eap) |
|
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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
|
1580 { |
|
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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
|
1581 cstack_T *cstack = eap->cstack; |
|
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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
|
1582 |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1583 if (cstack->cs_idx < 0 |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1584 || (cstack->cs_flags[cstack->cs_idx] & CSF_BLOCK) == 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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diff
changeset
|
1585 eap->errmsg = _(e_endblock_without_block); |
|
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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
|
1586 else |
|
7d25264c246c
patch 8.2.1826: Vim9: cannot use a {} block at script level
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changeset
|
1587 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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diff
changeset
|
1588 } |
| 7 | 1589 |
|
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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diff
changeset
|
1590 int |
|
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
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|
1591 inside_block(exarg_T *eap) |
|
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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
|
1592 { |
|
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patch 8.2.3297: cannot use all commands inside a {} block
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diff
changeset
|
1593 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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|
1594 int i; |
|
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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
|
1595 |
|
2063b858cad9
patch 8.2.3297: cannot use all commands inside a {} block
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changeset
|
1596 for (i = 0; i <= cstack->cs_idx; ++i) |
|
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Bram Moolenaar <Bram@vim.org>
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changeset
|
1597 if (cstack->cs_flags[cstack->cs_idx] & CSF_BLOCK) |
|
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patch 8.2.3297: cannot use all commands inside a {} block
Bram Moolenaar <Bram@vim.org>
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|
1598 return TRUE; |
|
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patch 8.2.3297: cannot use all commands inside a {} block
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|
1599 return FALSE; |
|
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|
1600 } |
|
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patch 8.2.3297: cannot use all commands inside a {} block
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|
1601 |
| 7 | 1602 /* |
| 1603 * ":throw expr" | |
| 1604 */ | |
| 1605 void | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
1606 ex_throw(exarg_T *eap) |
| 7 | 1607 { |
| 1608 char_u *arg = eap->arg; | |
| 1609 char_u *value; | |
| 1610 | |
| 1611 if (*arg != NUL && *arg != '|' && *arg != '\n') | |
|
20996
3af71cbcfdbe
patch 8.2.1049: Vim9: leaking memory when using continuation line
Bram Moolenaar <Bram@vim.org>
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20992
diff
changeset
|
1612 value = eval_to_string_skip(arg, eap, eap->skip); |
| 7 | 1613 else |
| 1614 { | |
|
26865
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patch 8.2.3961: error messages are spread out
Bram Moolenaar <Bram@vim.org>
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|
1615 emsg(_(e_argument_required)); |
| 7 | 1616 value = NULL; |
| 1617 } | |
| 1618 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1619 // 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
|
1620 // not throw. |
| 7 | 1621 if (!eap->skip && value != NULL) |
| 1622 { | |
| 1623 if (throw_exception(value, ET_USER, NULL) == FAIL) | |
| 1624 vim_free(value); | |
| 1625 else | |
| 1626 do_throw(eap->cstack); | |
| 1627 } | |
| 1628 } | |
| 1629 | |
| 1630 /* | |
| 21 | 1631 * Throw the current exception through the specified cstack. Common routine |
| 1632 * for ":throw" (user exception) and error and interrupt exceptions. Also | |
| 1633 * used for rethrowing an uncaught exception. | |
| 7 | 1634 */ |
| 1635 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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diff
changeset
|
1636 do_throw(cstack_T *cstack) |
| 7 | 1637 { |
| 1638 int idx; | |
| 1639 int inactivate_try = FALSE; | |
| 1640 | |
| 1641 /* | |
| 1642 * Cleanup and inactivate up to the next surrounding try conditional that | |
| 1643 * is not in its finally clause. Normally, do not inactivate the try | |
| 1644 * conditional itself, so that its ACTIVE flag can be tested below. But | |
| 1645 * if a previous error or interrupt has not been converted to an exception, | |
| 1646 * inactivate the try conditional, too, as if the conversion had been done, | |
| 21 | 1647 * and reset the did_emsg or got_int flag, so this won't happen again at |
| 1648 * the next surrounding try conditional. | |
| 7 | 1649 */ |
| 1880 | 1650 #ifndef THROW_ON_ERROR_TRUE |
| 7 | 1651 if (did_emsg && !THROW_ON_ERROR) |
| 1652 { | |
| 1653 inactivate_try = TRUE; | |
| 1654 did_emsg = FALSE; | |
| 1655 } | |
| 1880 | 1656 #endif |
| 1657 #ifndef THROW_ON_INTERRUPT_TRUE | |
| 7 | 1658 if (got_int && !THROW_ON_INTERRUPT) |
| 1659 { | |
| 1660 inactivate_try = TRUE; | |
| 1661 got_int = FALSE; | |
| 1662 } | |
| 1880 | 1663 #endif |
| 7 | 1664 idx = cleanup_conditionals(cstack, 0, inactivate_try); |
| 1665 if (idx >= 0) | |
| 1666 { | |
| 1667 /* | |
| 1668 * If this try conditional is active and we are before its first | |
| 21 | 1669 * ":catch", set THROWN so that the ":catch" commands will check |
| 1670 * whether the exception matches. When the exception came from any of | |
| 1671 * the catch clauses, it will be made pending at the ":finally" (if | |
| 1672 * present) and rethrown at the ":endtry". This will also happen if | |
| 1673 * the try conditional is inactive. This is the case when we are | |
| 1674 * throwing an exception due to an error or interrupt on the way from | |
| 1675 * a preceding ":continue", ":break", ":return", ":finish", error or | |
| 1676 * interrupt (not converted to an exception) to the finally clause or | |
| 1677 * from a preceding throw of a user or error or interrupt exception to | |
| 1678 * the matching catch clause or the finally clause. | |
| 7 | 1679 */ |
| 1680 if (!(cstack->cs_flags[idx] & CSF_CAUGHT)) | |
| 1681 { | |
| 1682 if (cstack->cs_flags[idx] & CSF_ACTIVE) | |
| 1683 cstack->cs_flags[idx] |= CSF_THROWN; | |
| 1684 else | |
|
18779
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changeset
|
1685 // THROWN may have already been set for a catchable exception |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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changeset
|
1686 // that has been discarded. Ensure it is reset for the new |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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changeset
|
1687 // exception. |
| 7 | 1688 cstack->cs_flags[idx] &= ~CSF_THROWN; |
| 1689 } | |
| 1690 cstack->cs_flags[idx] &= ~CSF_ACTIVE; | |
| 1691 cstack->cs_exception[idx] = current_exception; | |
| 1692 } | |
| 1693 #if 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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changeset
|
1694 // TODO: Add optimization below. Not yet done because of interface |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
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diff
changeset
|
1695 // problems to eval.c and ex_cmds2.c. (Servatius) |
| 7 | 1696 else |
| 1697 { | |
| 1698 /* | |
| 1699 * There are no catch clauses to check or finally clauses to execute. | |
| 1700 * End the current script or function. The exception will be rethrown | |
| 1701 * in the caller. | |
| 1702 */ | |
| 1703 if (getline_equal(eap->getline, eap->cookie, get_func_line)) | |
| 1704 current_funccal->returned = TRUE; | |
| 1705 elseif (eap->get_func_line == getsourceline) | |
| 1706 ((struct source_cookie *)eap->cookie)->finished = TRUE; | |
| 1707 } | |
| 1708 #endif | |
| 1709 | |
| 1710 did_throw = TRUE; | |
| 1711 } | |
| 1712 | |
| 1713 /* | |
| 1714 * ":try" | |
| 1715 */ | |
| 1716 void | |
|
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
1717 ex_try(exarg_T *eap) |
| 7 | 1718 { |
| 1719 int skip; | |
|
18904
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patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1720 cstack_T *cstack = eap->cstack; |
| 7 | 1721 |
|
25575
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patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1722 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
|
1723 return; |
|
a2e6029d354e
patch 8.2.2652: Vim9: can use command modifier without an effect
Bram Moolenaar <Bram@vim.org>
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changeset
|
1724 |
| 7 | 1725 if (cstack->cs_idx == CSTACK_LEN - 1) |
|
26948
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patch 8.2.4003: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1726 eap->errmsg = _(e_try_nesting_too_deep); |
| 7 | 1727 else |
| 1728 { | |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
1729 enter_block(cstack); |
| 7 | 1730 ++cstack->cs_trylevel; |
| 1731 cstack->cs_flags[cstack->cs_idx] = CSF_TRY; | |
| 1732 cstack->cs_pending[cstack->cs_idx] = CSTP_NONE; | |
| 1733 | |
| 1734 /* | |
| 1735 * Don't do something after an error, interrupt, or throw, or when there | |
| 1736 * is a surrounding conditional and it was not active. | |
| 1737 */ | |
| 1738 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0 | |
| 1739 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE)); | |
| 1740 | |
| 1741 if (!skip) | |
| 1742 { | |
|
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
|
1743 // Set ACTIVE and TRUE. TRUE means that the corresponding ":catch" |
|
8f05b3cf8557
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parents:
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diff
changeset
|
1744 // 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
|
1745 // that the finally clause needs to be executed. |
| 7 | 1746 cstack->cs_flags[cstack->cs_idx] |= CSF_ACTIVE | CSF_TRUE; |
| 1747 | |
| 1748 /* | |
| 1749 * ":silent!", even when used in a try conditional, disables | |
| 1750 * displaying of error messages and conversion of errors to | |
| 1751 * exceptions. When the silent commands again open a try | |
| 1752 * conditional, save "emsg_silent" and reset it so that errors are | |
| 1753 * again converted to exceptions. The value is restored when that | |
| 1754 * try conditional is left. If it is left normally, the commands | |
| 1755 * following the ":endtry" are again silent. If it is left by | |
| 1756 * a ":continue", ":break", ":return", or ":finish", the commands | |
| 1757 * executed next are again silent. If it is left due to an | |
| 1758 * aborting error, an interrupt, or an exception, restoring | |
| 1759 * "emsg_silent" does not matter since we are already in the | |
| 1760 * aborting state and/or the exception has already been thrown. | |
| 1761 * The effect is then just freeing the memory that was allocated | |
| 1762 * to save the value. | |
| 1763 */ | |
| 1764 if (emsg_silent) | |
| 1765 { | |
| 1766 eslist_T *elem; | |
| 1767 | |
|
16825
ce04ebdf26b8
patch 8.1.1414: alloc() returning "char_u *" causes a lot of type casts
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changeset
|
1768 elem = ALLOC_ONE(struct eslist_elem); |
| 7 | 1769 if (elem == NULL) |
|
25306
078edc1821bf
patch 8.2.3190: error messages are spread out
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changeset
|
1770 emsg(_(e_out_of_memory)); |
| 7 | 1771 else |
| 1772 { | |
| 1773 elem->saved_emsg_silent = emsg_silent; | |
| 1774 elem->next = cstack->cs_emsg_silent_list; | |
| 1775 cstack->cs_emsg_silent_list = elem; | |
| 1776 cstack->cs_flags[cstack->cs_idx] |= CSF_SILENT; | |
| 1777 emsg_silent = 0; | |
| 1778 } | |
| 1779 } | |
| 1780 } | |
| 1781 | |
| 1782 } | |
| 1783 } | |
| 1784 | |
| 1785 /* | |
| 1786 * ":catch /{pattern}/" and ":catch" | |
| 1787 */ | |
| 1788 void | |
|
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commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1789 ex_catch(exarg_T *eap) |
| 7 | 1790 { |
| 1791 int idx = 0; | |
| 1792 int give_up = FALSE; | |
| 1793 int skip = FALSE; | |
| 1794 int caught = FALSE; | |
| 1795 char_u *end; | |
| 1796 int save_char = 0; | |
| 1797 char_u *save_cpo; | |
| 1798 regmatch_T regmatch; | |
| 1799 int prev_got_int; | |
|
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changeset
|
1800 cstack_T *cstack = eap->cstack; |
| 7 | 1801 char_u *pat; |
| 1802 | |
|
25575
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patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
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changeset
|
1803 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
|
1804 return; |
|
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changeset
|
1805 |
| 7 | 1806 if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0) |
| 1807 { | |
|
26865
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changeset
|
1808 eap->errmsg = _(e_catch_without_try); |
| 7 | 1809 give_up = TRUE; |
| 1810 } | |
| 1811 else | |
| 1812 { | |
| 1813 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) | |
| 1814 { | |
|
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diff
changeset
|
1815 // 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>
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diff
changeset
|
1816 // finally clause. |
| 75 | 1817 eap->errmsg = get_end_emsg(cstack); |
| 7 | 1818 skip = TRUE; |
| 1819 } | |
| 1820 for (idx = cstack->cs_idx; idx > 0; --idx) | |
| 1821 if (cstack->cs_flags[idx] & CSF_TRY) | |
| 1822 break; | |
|
25124
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patch 8.2.3099: Vim9: missing catch/finally not reported at script level
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1823 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
|
1824 cstack->cs_flags[idx] |= CSF_CATCH; |
| 7 | 1825 if (cstack->cs_flags[idx] & CSF_FINALLY) |
| 1826 { | |
|
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
|
1827 // 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
|
1828 // Just parse. |
|
26948
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patch 8.2.4003: error messages are spread out
Bram Moolenaar <Bram@vim.org>
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26917
diff
changeset
|
1829 eap->errmsg = _(e_catch_after_finally); |
| 7 | 1830 give_up = TRUE; |
| 1831 } | |
| 79 | 1832 else |
| 75 | 1833 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR, |
| 1834 &cstack->cs_looplevel); | |
| 7 | 1835 } |
| 1836 | |
|
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1837 if (ends_excmd2(eap->cmd, eap->arg)) // no argument, catch all errors |
| 7 | 1838 { |
| 1839 pat = (char_u *)".*"; | |
| 1840 end = NULL; | |
| 1841 eap->nextcmd = find_nextcmd(eap->arg); | |
| 1842 } | |
| 1843 else | |
| 1844 { | |
| 1845 pat = eap->arg + 1; | |
|
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1846 end = skip_regexp_err(pat, *eap->arg, TRUE); |
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1847 if (end == NULL) |
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1848 give_up = TRUE; |
| 7 | 1849 } |
| 1850 | |
| 1851 if (!give_up) | |
| 1852 { | |
| 1853 /* | |
| 1854 * Don't do something when no exception has been thrown or when the | |
| 1855 * corresponding try block never got active (because of an inactive | |
| 1856 * surrounding conditional or after an error or interrupt or throw). | |
| 1857 */ | |
| 1858 if (!did_throw || !(cstack->cs_flags[idx] & CSF_TRUE)) | |
| 1859 skip = TRUE; | |
| 1860 | |
| 1861 /* | |
| 1862 * Check for a match only if an exception is thrown but not caught by | |
| 1863 * a previous ":catch". An exception that has replaced a discarded | |
| 1864 * exception is not checked (THROWN is not set then). | |
| 1865 */ | |
| 1866 if (!skip && (cstack->cs_flags[idx] & CSF_THROWN) | |
| 1867 && !(cstack->cs_flags[idx] & CSF_CAUGHT)) | |
| 1868 { | |
|
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1869 if (end != NULL && *end != NUL |
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1870 && !ends_excmd2(end, skipwhite(end + 1))) |
| 7 | 1871 { |
|
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1872 semsg(_(e_trailing_characters_str), end); |
| 7 | 1873 return; |
| 1874 } | |
| 1875 | |
|
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1876 // When debugging or a breakpoint was encountered, display the |
|
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1877 // debug prompt (if not already done) before checking for a match. |
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1878 // This is a helpful hint for the user when the regular expression |
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1879 // matching fails. Handle a ">quit" debug command as if an |
|
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1880 // interrupt had occurred before the ":catch". That is, discard |
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1881 // the original exception, replace it by an interrupt exception, |
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1882 // and don't catch it in this try block. |
| 7 | 1883 if (!dbg_check_skipped(eap) || !do_intthrow(cstack)) |
| 1884 { | |
|
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1885 // Terminate the pattern and avoid the 'l' flag in 'cpoptions' |
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1886 // while compiling it. |
| 7 | 1887 if (end != NULL) |
| 1888 { | |
| 1889 save_char = *end; | |
| 1890 *end = NUL; | |
| 1891 } | |
| 1892 save_cpo = p_cpo; | |
|
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1893 p_cpo = empty_option; |
|
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1894 // Disable error messages, it will make current_exception |
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1895 // invalid. |
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1896 ++emsg_off; |
| 1333 | 1897 regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING); |
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1898 --emsg_off; |
| 7 | 1899 regmatch.rm_ic = FALSE; |
| 1900 if (end != NULL) | |
| 1901 *end = save_char; | |
| 1902 p_cpo = save_cpo; | |
| 1903 if (regmatch.regprog == NULL) | |
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1904 semsg(_(e_invalid_argument_str), pat); |
| 7 | 1905 else |
| 1906 { | |
| 1907 /* | |
| 1908 * Save the value of got_int and reset it. We don't want | |
| 1909 * a previous interruption cancel matching, only hitting | |
| 1910 * CTRL-C while matching should abort it. | |
| 1911 */ | |
| 1912 prev_got_int = got_int; | |
| 1913 got_int = FALSE; | |
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1914 caught = vim_regexec_nl(®match, |
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1915 (char_u *)current_exception->value, (colnr_T)0); |
| 7 | 1916 got_int |= prev_got_int; |
|
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1917 vim_regfree(regmatch.regprog); |
| 7 | 1918 } |
| 1919 } | |
| 1920 } | |
| 1921 | |
| 1922 if (caught) | |
| 1923 { | |
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1924 // Make this ":catch" clause active and reset did_emsg, got_int, |
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1925 // and did_throw. Put the exception on the caught stack. |
| 7 | 1926 cstack->cs_flags[idx] |= CSF_ACTIVE | CSF_CAUGHT; |
| 1927 did_emsg = got_int = did_throw = FALSE; | |
| 1928 catch_exception((except_T *)cstack->cs_exception[idx]); | |
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1929 |
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1930 if (cstack->cs_idx >= 0 |
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1931 && (cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) |
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1932 { |
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1933 // Variables declared in the previous block can no longer be |
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1934 // used. |
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1935 leave_block(cstack); |
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1936 enter_block(cstack); |
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1937 } |
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1938 |
|
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1939 // It's mandatory that the current exception is stored in the cstack |
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1940 // so that it can be discarded at the next ":catch", ":finally", or |
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1941 // ":endtry" or when the catch clause is left by a ":continue", |
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1942 // ":break", ":return", ":finish", error, interrupt, or another |
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1943 // exception. |
| 7 | 1944 if (cstack->cs_exception[cstack->cs_idx] != current_exception) |
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1945 internal_error("ex_catch()"); |
| 7 | 1946 } |
| 1947 else | |
| 1948 { | |
| 1949 /* | |
| 1950 * If there is a preceding catch clause and it caught the exception, | |
| 1951 * finish the exception now. This happens also after errors except | |
| 1952 * when this ":catch" was after the ":finally" or not within | |
| 1953 * a ":try". Make the try conditional inactive so that the | |
| 1954 * following catch clauses are skipped. On an error or interrupt | |
| 1955 * after the preceding try block or catch clause was left by | |
| 1956 * a ":continue", ":break", ":return", or ":finish", discard the | |
| 1957 * pending action. | |
| 1958 */ | |
| 1959 cleanup_conditionals(cstack, CSF_TRY, TRUE); | |
| 1960 } | |
| 1961 } | |
| 1962 | |
| 1963 if (end != NULL) | |
| 1964 eap->nextcmd = find_nextcmd(end); | |
| 1965 } | |
| 1966 | |
| 1967 /* | |
| 1968 * ":finally" | |
| 1969 */ | |
| 1970 void | |
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1971 ex_finally(exarg_T *eap) |
| 7 | 1972 { |
| 1973 int idx; | |
| 1974 int skip = FALSE; | |
| 1975 int pending = CSTP_NONE; | |
|
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1976 cstack_T *cstack = eap->cstack; |
| 7 | 1977 |
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1978 if (cmdmod_error(FALSE)) |
|
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1979 return; |
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1980 |
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1981 for (idx = cstack->cs_idx; idx >= 0; --idx) |
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1982 if (cstack->cs_flags[idx] & CSF_TRY) |
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1983 break; |
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1984 if (cstack->cs_trylevel <= 0 || idx < 0) |
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1985 { |
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1986 eap->errmsg = _(e_finally_without_try); |
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1987 return; |
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1988 } |
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1989 |
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1990 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) |
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1991 { |
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1992 eap->errmsg = get_end_emsg(cstack); |
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1993 // Make this error pending, so that the commands in the following |
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1994 // finally clause can be executed. This overrules also a pending |
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1995 // ":continue", ":break", ":return", or ":finish". |
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1996 pending = CSTP_ERROR; |
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1997 } |
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1998 |
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1999 if (cstack->cs_flags[idx] & CSF_FINALLY) |
| 7 | 2000 { |
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2001 // Give up for a multiple ":finally" and ignore it. |
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2002 eap->errmsg = _(e_multiple_finally); |
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2003 return; |
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2004 } |
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2005 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR, |
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2006 &cstack->cs_looplevel); |
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2007 |
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2008 /* |
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2009 * Don't do something when the corresponding try block never got active |
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2010 * (because of an inactive surrounding conditional or after an error or |
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2011 * interrupt or throw) or for a ":finally" without ":try" or a multiple |
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2012 * ":finally". After every other error (did_emsg or the conditional |
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2013 * errors detected above) or after an interrupt (got_int) or an |
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2014 * exception (did_throw), the finally clause must be executed. |
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2015 */ |
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2016 skip = !(cstack->cs_flags[cstack->cs_idx] & CSF_TRUE); |
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2017 |
|
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|
2018 if (!skip) |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2019 { |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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diff
changeset
|
2020 // When debugging or a breakpoint was encountered, display the |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2021 // debug prompt (if not already done). The user then knows that the |
|
4bbc920bdef7
patch 9.0.0577: buffer underflow with unexpected :finally
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|
2022 // finally clause is executed. |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2023 if (dbg_check_skipped(eap)) |
| 7 | 2024 { |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2025 // Handle a ">quit" debug command as if an interrupt had |
|
4bbc920bdef7
patch 9.0.0577: buffer underflow with unexpected :finally
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|
2026 // occurred before the ":finally". That is, discard the |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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diff
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|
2027 // original exception and replace it by an interrupt |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2028 // exception. |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
Bram Moolenaar <Bram@vim.org>
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diff
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|
2029 (void)do_intthrow(cstack); |
| 7 | 2030 } |
| 2031 | |
| 2032 /* | |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2033 * If there is a preceding catch clause and it caught the exception, |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2034 * finish the exception now. This happens also after errors except |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2035 * when this is a multiple ":finally" or one not within a ":try". |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2036 * After an error or interrupt, this also discards a pending |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2037 * ":continue", ":break", ":finish", or ":return" from the preceding |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2038 * try block or catch clause. |
| 7 | 2039 */ |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2040 cleanup_conditionals(cstack, CSF_TRY, FALSE); |
| 7 | 2041 |
|
30483
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|
2042 if (cstack->cs_idx >= 0 |
|
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|
2043 && (cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) |
| 7 | 2044 { |
|
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|
2045 // Variables declared in the previous block can no longer be |
|
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|
2046 // used. |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2047 leave_block(cstack); |
|
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|
2048 enter_block(cstack); |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2049 } |
|
27948
f57b8db06f26
patch 8.2.4499: Vim9: at the script level declarations leak to next block
Bram Moolenaar <Bram@vim.org>
parents:
27426
diff
changeset
|
2050 |
|
30483
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2051 /* |
|
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|
2052 * Make did_emsg, got_int, did_throw pending. If set, they overrule |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2053 * a pending ":continue", ":break", ":return", or ":finish". Then |
|
4bbc920bdef7
patch 9.0.0577: buffer underflow with unexpected :finally
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|
2054 * we have particularly to discard a pending return value (as done |
|
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|
2055 * by the call to cleanup_conditionals() above when did_emsg or |
|
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|
2056 * got_int is set). The pending values are restored by the |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2057 * ":endtry", except if there is a new error, interrupt, exception, |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2058 * ":continue", ":break", ":return", or ":finish" in the following |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2059 * finally clause. A missing ":endwhile", ":endfor" or ":endif" |
|
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|
2060 * detected here is treated as if did_emsg and did_throw had |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2061 * already been set, respectively in case that the error is not |
|
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|
2062 * converted to an exception, did_throw had already been unset. |
|
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|
2063 * We must not set did_emsg here since that would suppress the |
|
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|
2064 * error message. |
|
4bbc920bdef7
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|
2065 */ |
|
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|
2066 if (pending == CSTP_ERROR || did_emsg || got_int || did_throw) |
|
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|
2067 { |
|
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|
2068 if (cstack->cs_pending[cstack->cs_idx] == CSTP_RETURN) |
| 7 | 2069 { |
|
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|
2070 report_discard_pending(CSTP_RETURN, |
|
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|
2071 cstack->cs_rettv[cstack->cs_idx]); |
|
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|
2072 discard_pending_return(cstack->cs_rettv[cstack->cs_idx]); |
|
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|
2073 } |
|
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|
2074 if (pending == CSTP_ERROR && !did_emsg) |
|
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|
2075 pending |= (THROW_ON_ERROR) ? CSTP_THROW : 0; |
|
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|
2076 else |
|
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|
2077 pending |= did_throw ? CSTP_THROW : 0; |
|
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|
2078 pending |= did_emsg ? CSTP_ERROR : 0; |
|
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|
2079 pending |= got_int ? CSTP_INTERRUPT : 0; |
|
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|
2080 cstack->cs_pending[cstack->cs_idx] = pending; |
| 7 | 2081 |
|
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|
2082 // It's mandatory that the current exception is stored in the |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2083 // cstack so that it can be rethrown at the ":endtry" or be |
|
4bbc920bdef7
patch 9.0.0577: buffer underflow with unexpected :finally
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|
2084 // discarded if the finally clause is left by a ":continue", |
|
4bbc920bdef7
patch 9.0.0577: buffer underflow with unexpected :finally
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|
2085 // ":break", ":return", ":finish", error, interrupt, or another |
|
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|
2086 // exception. When emsg() is called for a missing ":endif" or |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2087 // a missing ":endwhile"/":endfor" detected here, the |
|
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patch 9.0.0577: buffer underflow with unexpected :finally
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|
2088 // exception will be discarded. |
|
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|
2089 if (did_throw && cstack->cs_exception[cstack->cs_idx] |
|
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|
2090 != current_exception) |
|
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|
2091 internal_error("ex_finally()"); |
|
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|
2092 } |
| 7 | 2093 |
|
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|
2094 /* |
|
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|
2095 * Set CSL_HAD_FINA, so do_cmdline() will reset did_emsg, |
|
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|
2096 * got_int, and did_throw and make the finally clause active. |
|
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|
2097 * This will happen after emsg() has been called for a missing |
|
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|
2098 * ":endif" or a missing ":endwhile"/":endfor" detected here, so |
|
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|
2099 * that the following finally clause will be executed even then. |
|
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|
2100 */ |
|
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|
2101 cstack->cs_lflags |= CSL_HAD_FINA; |
| 7 | 2102 } |
| 2103 } | |
| 2104 | |
| 2105 /* | |
| 2106 * ":endtry" | |
| 2107 */ | |
| 2108 void | |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
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7801
diff
changeset
|
2109 ex_endtry(exarg_T *eap) |
| 7 | 2110 { |
| 2111 int idx; | |
| 2112 int skip; | |
| 2113 int rethrow = FALSE; | |
| 2114 int pending = CSTP_NONE; | |
| 68 | 2115 void *rettv = NULL; |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
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|
2116 cstack_T *cstack = eap->cstack; |
| 7 | 2117 |
|
25575
9f691e8a74e3
patch 8.2.3324: Vim9: Cannot use :silent with :endwhile
Bram Moolenaar <Bram@vim.org>
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25537
diff
changeset
|
2118 if (cmdmod_error(FALSE)) |
|
24222
a2e6029d354e
patch 8.2.2652: Vim9: can use command modifier without an effect
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|
2119 return; |
|
a2e6029d354e
patch 8.2.2652: Vim9: can use command modifier without an effect
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|
2120 |
|
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|
2121 for (idx = cstack->cs_idx; idx >= 0; --idx) |
|
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|
2122 if (cstack->cs_flags[idx] & CSF_TRY) |
|
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|
2123 break; |
|
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|
2124 if (cstack->cs_trylevel <= 0 || idx < 0) |
| 7 | 2125 { |
|
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|
2126 eap->errmsg = _(e_endtry_without_try); |
|
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|
2127 return; |
|
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|
2128 } |
|
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|
2129 |
|
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|
2130 /* |
|
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|
2131 * Don't do something after an error, interrupt or throw in the try |
|
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|
2132 * block, catch clause, or finally clause preceding this ":endtry" or |
|
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|
2133 * when an error or interrupt occurred after a ":continue", ":break", |
|
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|
2134 * ":return", or ":finish" in a try block or catch clause preceding this |
|
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|
2135 * ":endtry" or when the try block never got active (because of an |
|
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|
2136 * inactive surrounding conditional or after an error or interrupt or |
|
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|
2137 * throw) or when there is a surrounding conditional and it has been |
|
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|
2138 * made inactive by a ":continue", ":break", ":return", or ":finish" in |
|
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|
2139 * the finally clause. The latter case need not be tested since then |
|
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|
2140 * anything pending has already been discarded. */ |
|
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|
2141 skip = did_emsg || got_int || did_throw |
|
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2142 || !(cstack->cs_flags[cstack->cs_idx] & CSF_TRUE); |
| 7 | 2143 |
|
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2144 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) |
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|
2145 { |
|
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|
2146 eap->errmsg = get_end_emsg(cstack); |
|
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2147 |
|
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|
2148 // Find the matching ":try" and report what's missing. |
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2149 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR, |
|
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|
2150 &cstack->cs_looplevel); |
|
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2151 skip = TRUE; |
| 7 | 2152 |
|
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2153 /* |
|
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|
2154 * If an exception is being thrown, discard it to prevent it from |
|
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|
2155 * being rethrown at the end of this function. It would be |
|
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2156 * discarded by the error message, anyway. Resets did_throw. |
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2157 * This does not affect the script termination due to the error |
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2158 * since "trylevel" is decremented after emsg() has been called. |
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|
2159 */ |
|
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|
2160 if (did_throw) |
|
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|
2161 discard_current_exception(); |
|
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2162 |
|
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|
2163 // report eap->errmsg, also when there already was an error |
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|
2164 did_emsg = FALSE; |
|
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2165 } |
|
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2166 else |
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2167 { |
|
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2168 idx = cstack->cs_idx; |
| 7 | 2169 |
|
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|
2170 // Check the flags only when not in a skipped block. |
|
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|
2171 if (!skip && in_vim9script() |
|
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|
2172 && (cstack->cs_flags[idx] & (CSF_CATCH|CSF_FINALLY)) == 0) |
| 7 | 2173 { |
|
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|
2174 // try/endtry without any catch or finally: give an error and |
|
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2175 // continue. |
|
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2176 eap->errmsg = _(e_missing_catch_or_finally); |
| 7 | 2177 } |
| 2178 | |
| 2179 /* | |
|
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|
2180 * If we stopped with the exception currently being thrown at this |
|
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|
2181 * try conditional since we didn't know that it doesn't have |
|
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|
2182 * a finally clause, we need to rethrow it after closing the try |
|
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|
2183 * conditional. |
| 7 | 2184 */ |
|
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|
2185 if (did_throw && (cstack->cs_flags[idx] & CSF_TRUE) |
|
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2186 && !(cstack->cs_flags[idx] & CSF_FINALLY)) |
|
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2187 rethrow = TRUE; |
|
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|
2188 } |
|
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2189 |
|
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|
2190 // If there was no finally clause, show the user when debugging or |
|
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2191 // a breakpoint was encountered that the end of the try conditional has |
|
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2192 // been reached: display the debug prompt (if not already done). Do |
|
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2193 // this on normal control flow or when an exception was thrown, but not |
|
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2194 // on an interrupt or error not converted to an exception or when |
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2195 // a ":break", ":continue", ":return", or ":finish" is pending. These |
|
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2196 // actions are carried out immediately. |
|
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2197 if ((rethrow || (!skip && !(cstack->cs_flags[idx] & CSF_FINALLY) |
|
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2198 && !cstack->cs_pending[idx])) |
|
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2199 && dbg_check_skipped(eap)) |
|
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|
2200 { |
|
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|
2201 // Handle a ">quit" debug command as if an interrupt had occurred |
|
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2202 // before the ":endtry". That is, throw an interrupt exception and |
|
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|
2203 // set "skip" and "rethrow". |
|
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|
2204 if (got_int) |
| 7 | 2205 { |
|
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|
2206 skip = TRUE; |
|
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|
2207 (void)do_intthrow(cstack); |
|
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|
2208 // The do_intthrow() call may have reset did_throw or |
|
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|
2209 // cstack->cs_pending[idx]. |
|
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|
2210 rethrow = FALSE; |
|
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|
2211 if (did_throw && !(cstack->cs_flags[idx] & CSF_FINALLY)) |
|
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|
2212 rethrow = TRUE; |
| 7 | 2213 } |
|
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2214 } |
| 7 | 2215 |
|
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|
2216 /* |
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|
2217 * If a ":return" is pending, we need to resume it after closing the |
|
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|
2218 * try conditional; remember the return value. If there was a finally |
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2219 * clause making an exception pending, we need to rethrow it. Make it |
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2220 * the exception currently being thrown. |
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2221 */ |
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2222 if (!skip) |
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2223 { |
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2224 pending = cstack->cs_pending[idx]; |
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2225 cstack->cs_pending[idx] = CSTP_NONE; |
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2226 if (pending == CSTP_RETURN) |
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2227 rettv = cstack->cs_rettv[idx]; |
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2228 else if (pending & CSTP_THROW) |
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2229 current_exception = cstack->cs_exception[idx]; |
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2230 } |
| 7 | 2231 |
|
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2232 /* |
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|
2233 * Discard anything pending on an error, interrupt, or throw in the |
|
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2234 * finally clause. If there was no ":finally", discard a pending |
|
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|
2235 * ":continue", ":break", ":return", or ":finish" if an error or |
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2236 * interrupt occurred afterwards, but before the ":endtry" was reached. |
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2237 * If an exception was caught by the last of the catch clauses and there |
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2238 * was no finally clause, finish the exception now. This happens also |
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2239 * after errors except when this ":endtry" is not within a ":try". |
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2240 * Restore "emsg_silent" if it has been reset by this try conditional. |
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2241 */ |
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2242 (void)cleanup_conditionals(cstack, CSF_TRY | CSF_SILENT, TRUE); |
| 7 | 2243 |
|
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2244 if (cstack->cs_idx >= 0 && (cstack->cs_flags[cstack->cs_idx] & CSF_TRY)) |
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|
2245 leave_block(cstack); |
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2246 --cstack->cs_trylevel; |
|
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2247 |
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2248 if (!skip) |
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2249 { |
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2250 report_resume_pending(pending, |
| 68 | 2251 (pending == CSTP_RETURN) ? rettv : |
| 7 | 2252 (pending & CSTP_THROW) ? (void *)current_exception : NULL); |
|
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2253 switch (pending) |
|
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2254 { |
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2255 case CSTP_NONE: |
|
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|
2256 break; |
| 7 | 2257 |
|
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|
2258 // Reactivate a pending ":continue", ":break", ":return", |
|
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|
2259 // ":finish" from the try block or a catch clause of this try |
|
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|
2260 // conditional. This is skipped, if there was an error in an |
|
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|
2261 // (unskipped) conditional command or an interrupt afterwards |
|
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|
2262 // or if the finally clause is present and executed a new error, |
|
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|
2263 // interrupt, throw, ":continue", ":break", ":return", or |
|
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2264 // ":finish". |
|
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|
2265 case CSTP_CONTINUE: |
|
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|
2266 ex_continue(eap); |
|
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|
2267 break; |
|
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|
2268 case CSTP_BREAK: |
|
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|
2269 ex_break(eap); |
|
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|
2270 break; |
|
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|
2271 case CSTP_RETURN: |
|
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|
2272 do_return(eap, FALSE, FALSE, rettv); |
|
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|
2273 break; |
|
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|
2274 case CSTP_FINISH: |
|
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|
2275 do_finish(eap, FALSE); |
|
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|
2276 break; |
| 7 | 2277 |
|
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|
2278 // When the finally clause was entered due to an error, |
|
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|
2279 // interrupt or throw (as opposed to a ":continue", ":break", |
|
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|
2280 // ":return", or ":finish"), restore the pending values of |
|
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|
2281 // did_emsg, got_int, and did_throw. This is skipped, if there |
|
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|
2282 // was a new error, interrupt, throw, ":continue", ":break", |
|
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|
2283 // ":return", or ":finish". in the finally clause. |
|
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|
2284 default: |
|
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|
2285 if (pending & CSTP_ERROR) |
|
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|
2286 did_emsg = TRUE; |
|
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|
2287 if (pending & CSTP_INTERRUPT) |
|
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|
2288 got_int = TRUE; |
|
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|
2289 if (pending & CSTP_THROW) |
|
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|
2290 rethrow = TRUE; |
|
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|
2291 break; |
| 7 | 2292 } |
|
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|
2293 } |
| 7 | 2294 |
|
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|
2295 if (rethrow) |
|
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|
2296 // Rethrow the current exception (within this cstack). |
|
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|
2297 do_throw(cstack); |
| 7 | 2298 } |
| 2299 | |
| 2300 /* | |
| 36 | 2301 * enter_cleanup() and leave_cleanup() |
| 2302 * | |
| 2303 * Functions to be called before/after invoking a sequence of autocommands for | |
| 2304 * cleanup for a failed command. (Failure means here that a call to emsg() | |
| 2305 * has been made, an interrupt occurred, or there is an uncaught exception | |
| 2306 * from a previous autocommand execution of the same command.) | |
| 24 | 2307 * |
| 36 | 2308 * Call enter_cleanup() with a pointer to a cleanup_T and pass the same |
| 2309 * pointer to leave_cleanup(). The cleanup_T structure stores the pending | |
| 2310 * error/interrupt/exception state. | |
| 2311 */ | |
| 2312 | |
| 2313 /* | |
| 2314 * This function works a bit like ex_finally() except that there was not | |
| 2315 * actually an extra try block around the part that failed and an error or | |
| 2316 * interrupt has not (yet) been converted to an exception. This function | |
| 2317 * saves the error/interrupt/ exception state and prepares for the call to | |
| 2318 * do_cmdline() that is going to be made for the cleanup autocommand | |
| 2319 * execution. | |
| 24 | 2320 */ |
| 2321 void | |
|
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diff
changeset
|
2322 enter_cleanup(cleanup_T *csp) |
| 24 | 2323 { |
| 2324 int pending = CSTP_NONE; | |
| 2325 | |
| 2326 /* | |
| 2327 * Postpone did_emsg, got_int, did_throw. The pending values will be | |
| 2328 * restored by leave_cleanup() except if there was an aborting error, | |
| 2329 * interrupt, or uncaught exception after this function ends. | |
| 2330 */ | |
| 2331 if (did_emsg || got_int || did_throw || need_rethrow) | |
| 2332 { | |
| 2333 csp->pending = (did_emsg ? CSTP_ERROR : 0) | |
| 2334 | (got_int ? CSTP_INTERRUPT : 0) | |
| 2335 | (did_throw ? CSTP_THROW : 0) | |
| 2336 | (need_rethrow ? CSTP_THROW : 0); | |
| 2337 | |
|
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|
2338 // If we are currently throwing an exception (did_throw), save it as |
|
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2339 // well. On an error not yet converted to an exception, update |
|
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|
2340 // "force_abort" and reset "cause_abort" (as do_errthrow() would do). |
|
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2341 // This is needed for the do_cmdline() call that is going to be made |
|
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|
2342 // for autocommand execution. We need not save *msg_list because |
|
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|
2343 // there is an extra instance for every call of do_cmdline(), anyway. |
| 24 | 2344 if (did_throw || need_rethrow) |
|
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|
2345 { |
| 24 | 2346 csp->exception = current_exception; |
|
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|
2347 current_exception = NULL; |
|
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|
2348 } |
| 24 | 2349 else |
| 2350 { | |
| 2351 csp->exception = NULL; | |
| 2352 if (did_emsg) | |
| 2353 { | |
| 2354 force_abort |= cause_abort; | |
| 2355 cause_abort = FALSE; | |
| 2356 } | |
| 2357 } | |
| 2358 did_emsg = got_int = did_throw = need_rethrow = FALSE; | |
| 2359 | |
|
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|
2360 // Report if required by the 'verbose' option or when debugging. |
| 24 | 2361 report_make_pending(pending, csp->exception); |
| 2362 } | |
| 2363 else | |
| 2364 { | |
| 2365 csp->pending = CSTP_NONE; | |
| 2366 csp->exception = NULL; | |
| 2367 } | |
| 2368 } | |
| 2369 | |
| 2370 /* | |
| 36 | 2371 * See comment above enter_cleanup() for how this function is used. |
| 2372 * | |
| 2373 * This function is a bit like ex_endtry() except that there was not actually | |
| 2374 * an extra try block around the part that failed and an error or interrupt | |
| 2375 * had not (yet) been converted to an exception when the cleanup autocommand | |
| 2376 * sequence was invoked. | |
| 2377 * | |
| 2378 * This function has to be called with the address of the cleanup_T structure | |
| 2379 * filled by enter_cleanup() as an argument; it restores the error/interrupt/ | |
| 2380 * exception state saved by that function - except there was an aborting | |
| 2381 * error, an interrupt or an uncaught exception during execution of the | |
| 2382 * cleanup autocommands. In the latter case, the saved error/interrupt/ | |
| 2383 * exception state is discarded. | |
| 24 | 2384 */ |
| 2385 void | |
|
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|
2386 leave_cleanup(cleanup_T *csp) |
| 24 | 2387 { |
| 2388 int pending = csp->pending; | |
| 2389 | |
|
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|
2390 if (pending == CSTP_NONE) // nothing to do |
| 24 | 2391 return; |
| 2392 | |
|
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|
2393 // If there was an aborting error, an interrupt, or an uncaught exception |
|
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|
2394 // after the corresponding call to enter_cleanup(), discard what has been |
|
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|
2395 // made pending by it. Report this to the user if required by the |
|
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|
2396 // 'verbose' option or when debugging. |
| 24 | 2397 if (aborting() || need_rethrow) |
| 2398 { | |
| 2399 if (pending & CSTP_THROW) | |
|
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|
2400 // Cancel the pending exception (includes report). |
|
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|
2401 discard_exception(csp->exception, FALSE); |
| 24 | 2402 else |
| 2403 report_discard_pending(pending, NULL); | |
| 2404 | |
|
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|
2405 // If an error was about to be converted to an exception when |
|
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|
2406 // enter_cleanup() was called, free the message list. |
| 1046 | 2407 if (msg_list != NULL) |
| 5517 | 2408 free_global_msglist(); |
| 24 | 2409 } |
| 2410 | |
| 2411 /* | |
| 2412 * If there was no new error, interrupt, or throw between the calls | |
| 2413 * to enter_cleanup() and leave_cleanup(), restore the pending | |
| 2414 * error/interrupt/exception state. | |
| 2415 */ | |
| 2416 else | |
| 2417 { | |
| 2418 /* | |
| 2419 * If there was an exception being thrown when enter_cleanup() was | |
| 2420 * called, we need to rethrow it. Make it the exception currently | |
| 2421 * being thrown. | |
| 2422 */ | |
| 2423 if (pending & CSTP_THROW) | |
| 2424 current_exception = csp->exception; | |
| 2425 | |
| 2426 /* | |
| 2427 * If an error was about to be converted to an exception when | |
| 2428 * enter_cleanup() was called, let "cause_abort" take the part of | |
| 2429 * "force_abort" (as done by cause_errthrow()). | |
| 2430 */ | |
| 2431 else if (pending & CSTP_ERROR) | |
| 2432 { | |
| 2433 cause_abort = force_abort; | |
| 2434 force_abort = FALSE; | |
| 2435 } | |
| 2436 | |
| 2437 /* | |
| 2438 * Restore the pending values of did_emsg, got_int, and did_throw. | |
| 2439 */ | |
| 2440 if (pending & CSTP_ERROR) | |
| 2441 did_emsg = TRUE; | |
| 2442 if (pending & CSTP_INTERRUPT) | |
| 2443 got_int = TRUE; | |
| 2444 if (pending & CSTP_THROW) | |
|
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|
2445 need_rethrow = TRUE; // did_throw will be set by do_one_cmd() |
| 24 | 2446 |
|
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2447 // Report if required by the 'verbose' option or when debugging. |
| 24 | 2448 report_resume_pending(pending, |
| 36 | 2449 (pending & CSTP_THROW) ? (void *)current_exception : NULL); |
| 24 | 2450 } |
| 2451 } | |
| 2452 | |
| 2453 | |
| 2454 /* | |
| 7 | 2455 * Make conditionals inactive and discard what's pending in finally clauses |
| 2456 * until the conditional type searched for or a try conditional not in its | |
| 79 | 2457 * finally clause is reached. If this is in an active catch clause, finish |
| 2458 * the caught exception. | |
| 2459 * Return the cstack index where the search stopped. | |
| 75 | 2460 * Values used for "searched_cond" are (CSF_WHILE | CSF_FOR) or CSF_TRY or 0, |
| 2461 * the latter meaning the innermost try conditional not in its finally clause. | |
| 2462 * "inclusive" tells whether the conditional searched for should be made | |
| 4352 | 2463 * inactive itself (a try conditional not in its finally clause possibly find |
| 75 | 2464 * before is always made inactive). If "inclusive" is TRUE and |
| 2465 * "searched_cond" is CSF_TRY|CSF_SILENT, the saved former value of | |
| 2466 * "emsg_silent", if reset when the try conditional finally reached was | |
| 4352 | 2467 * entered, is restored (used by ex_endtry()). This is normally done only |
| 75 | 2468 * when such a try conditional is left. |
| 7 | 2469 */ |
| 2470 int | |
|
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|
2471 cleanup_conditionals( |
|
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|
2472 cstack_T *cstack, |
|
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changeset
|
2473 int searched_cond, |
|
f86adafb28d4
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diff
changeset
|
2474 int inclusive) |
| 7 | 2475 { |
| 2476 int idx; | |
| 2477 int stop = FALSE; | |
| 2478 | |
| 2479 for (idx = cstack->cs_idx; idx >= 0; --idx) | |
| 2480 { | |
| 2481 if (cstack->cs_flags[idx] & CSF_TRY) | |
| 2482 { | |
| 2483 /* | |
| 2484 * Discard anything pending in a finally clause and continue the | |
| 2485 * search. There may also be a pending ":continue", ":break", | |
| 2486 * ":return", or ":finish" before the finally clause. We must not | |
| 2487 * discard it, unless an error or interrupt occurred afterwards. | |
| 2488 */ | |
| 359 | 2489 if (did_emsg || got_int || (cstack->cs_flags[idx] & CSF_FINALLY)) |
| 7 | 2490 { |
| 2491 switch (cstack->cs_pending[idx]) | |
| 2492 { | |
| 2493 case CSTP_NONE: | |
| 2494 break; | |
| 2495 | |
| 2496 case CSTP_CONTINUE: | |
| 2497 case CSTP_BREAK: | |
| 2498 case CSTP_FINISH: | |
| 2499 report_discard_pending(cstack->cs_pending[idx], NULL); | |
| 2500 cstack->cs_pending[idx] = CSTP_NONE; | |
| 2501 break; | |
| 2502 | |
| 2503 case CSTP_RETURN: | |
| 2504 report_discard_pending(CSTP_RETURN, | |
| 68 | 2505 cstack->cs_rettv[idx]); |
| 2506 discard_pending_return(cstack->cs_rettv[idx]); | |
| 7 | 2507 cstack->cs_pending[idx] = CSTP_NONE; |
| 2508 break; | |
| 2509 | |
| 2510 default: | |
| 2511 if (cstack->cs_flags[idx] & CSF_FINALLY) | |
| 2512 { | |
|
25872
a58520ab7c3b
patch 8.2.3470: crash with error in :catch and also in :finally
Bram Moolenaar <Bram@vim.org>
parents:
25680
diff
changeset
|
2513 if ((cstack->cs_pending[idx] & CSTP_THROW) |
|
a58520ab7c3b
patch 8.2.3470: crash with error in :catch and also in :finally
Bram Moolenaar <Bram@vim.org>
parents:
25680
diff
changeset
|
2514 && cstack->cs_exception[idx] != NULL) |
| 7 | 2515 { |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2516 // Cancel the pending exception. This is in the |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2517 // finally clause, so that the stack of the |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2518 // caught exceptions is not involved. |
|
23235
22037d6da577
patch 8.2.2163: crash when discarded exception is the current exception
Bram Moolenaar <Bram@vim.org>
parents:
22643
diff
changeset
|
2519 discard_exception( |
|
22037d6da577
patch 8.2.2163: crash when discarded exception is the current exception
Bram Moolenaar <Bram@vim.org>
parents:
22643
diff
changeset
|
2520 (except_T *)cstack->cs_exception[idx], |
| 7 | 2521 FALSE); |
| 2522 } | |
| 2523 else | |
| 2524 report_discard_pending(cstack->cs_pending[idx], | |
| 2525 NULL); | |
| 2526 cstack->cs_pending[idx] = CSTP_NONE; | |
| 2527 } | |
| 2528 break; | |
| 2529 } | |
| 2530 } | |
| 2531 | |
| 2532 /* | |
| 2533 * Stop at a try conditional not in its finally clause. If this try | |
| 2534 * conditional is in an active catch clause, finish the caught | |
| 2535 * exception. | |
| 2536 */ | |
| 2537 if (!(cstack->cs_flags[idx] & CSF_FINALLY)) | |
| 2538 { | |
| 2539 if ((cstack->cs_flags[idx] & CSF_ACTIVE) | |
|
25889
c83ebae45881
patch 8.2.3478: still crash with error in :catch and also in :finally
Bram Moolenaar <Bram@vim.org>
parents:
25872
diff
changeset
|
2540 && (cstack->cs_flags[idx] & CSF_CAUGHT) |
|
c83ebae45881
patch 8.2.3478: still crash with error in :catch and also in :finally
Bram Moolenaar <Bram@vim.org>
parents:
25872
diff
changeset
|
2541 && !(cstack->cs_flags[idx] & CSF_FINISHED)) |
|
c83ebae45881
patch 8.2.3478: still crash with error in :catch and also in :finally
Bram Moolenaar <Bram@vim.org>
parents:
25872
diff
changeset
|
2542 { |
| 7 | 2543 finish_exception((except_T *)cstack->cs_exception[idx]); |
|
25889
c83ebae45881
patch 8.2.3478: still crash with error in :catch and also in :finally
Bram Moolenaar <Bram@vim.org>
parents:
25872
diff
changeset
|
2544 cstack->cs_flags[idx] |= CSF_FINISHED; |
|
c83ebae45881
patch 8.2.3478: still crash with error in :catch and also in :finally
Bram Moolenaar <Bram@vim.org>
parents:
25872
diff
changeset
|
2545 } |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2546 // Stop at this try conditional - except the try block never |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2547 // got active (because of an inactive surrounding conditional |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2548 // or when the ":try" appeared after an error or interrupt or |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2549 // throw). |
| 7 | 2550 if (cstack->cs_flags[idx] & CSF_TRUE) |
| 2551 { | |
| 2552 if (searched_cond == 0 && !inclusive) | |
| 2553 break; | |
| 2554 stop = TRUE; | |
| 2555 } | |
| 2556 } | |
| 2557 } | |
| 2558 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2559 // Stop on the searched conditional type (even when the surrounding |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2560 // conditional is not active or something has been made pending). |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2561 // If "inclusive" is TRUE and "searched_cond" is CSF_TRY|CSF_SILENT, |
|
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2562 // check first whether "emsg_silent" needs to be restored. |
| 7 | 2563 if (cstack->cs_flags[idx] & searched_cond) |
| 2564 { | |
| 2565 if (!inclusive) | |
| 2566 break; | |
| 2567 stop = TRUE; | |
| 2568 } | |
| 2569 cstack->cs_flags[idx] &= ~CSF_ACTIVE; | |
| 2570 if (stop && searched_cond != (CSF_TRY | CSF_SILENT)) | |
| 2571 break; | |
| 2572 | |
| 2573 /* | |
| 1214 | 2574 * When leaving a try conditional that reset "emsg_silent" on its |
| 2575 * entry after saving the original value, restore that value here and | |
| 2576 * free the memory used to store it. | |
| 7 | 2577 */ |
| 2578 if ((cstack->cs_flags[idx] & CSF_TRY) | |
| 359 | 2579 && (cstack->cs_flags[idx] & CSF_SILENT)) |
| 7 | 2580 { |
| 2581 eslist_T *elem; | |
| 2582 | |
| 2583 elem = cstack->cs_emsg_silent_list; | |
| 2584 cstack->cs_emsg_silent_list = elem->next; | |
| 2585 emsg_silent = elem->saved_emsg_silent; | |
| 2586 vim_free(elem); | |
| 2587 cstack->cs_flags[idx] &= ~CSF_SILENT; | |
| 2588 } | |
| 2589 if (stop) | |
| 2590 break; | |
| 2591 } | |
| 2592 return idx; | |
| 2593 } | |
| 2594 | |
| 2595 /* | |
| 75 | 2596 * Return an appropriate error message for a missing endwhile/endfor/endif. |
| 2597 */ | |
|
15470
55ccc2d353bd
patch 8.1.0743: giving error messages is not flexible
Bram Moolenaar <Bram@vim.org>
parents:
14862
diff
changeset
|
2598 static char * |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
2599 get_end_emsg(cstack_T *cstack) |
| 75 | 2600 { |
| 2601 if (cstack->cs_flags[cstack->cs_idx] & CSF_WHILE) | |
|
26857
2aeea8611342
patch 8.2.3957: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26250
diff
changeset
|
2602 return _(e_missing_endwhile); |
| 75 | 2603 if (cstack->cs_flags[cstack->cs_idx] & CSF_FOR) |
|
26857
2aeea8611342
patch 8.2.3957: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26250
diff
changeset
|
2604 return _(e_missing_endfor); |
|
2aeea8611342
patch 8.2.3957: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26250
diff
changeset
|
2605 return _(e_missing_endif); |
| 75 | 2606 } |
| 2607 | |
| 2608 | |
| 2609 /* | |
| 7 | 2610 * Rewind conditionals until index "idx" is reached. "cond_type" and |
| 2611 * "cond_level" specify a conditional type and the address of a level variable | |
| 2612 * which is to be decremented with each skipped conditional of the specified | |
| 2613 * type. | |
| 79 | 2614 * Also free "for info" structures where needed. |
| 7 | 2615 */ |
| 79 | 2616 void |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
2617 rewind_conditionals( |
|
18904
2bdc2e1f6e1f
patch 8.2.0013: not using a typedef for condstack
Bram Moolenaar <Bram@vim.org>
parents:
18779
diff
changeset
|
2618 cstack_T *cstack, |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
2619 int idx, |
|
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
2620 int cond_type, |
|
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
2621 int *cond_level) |
| 7 | 2622 { |
| 2623 while (cstack->cs_idx > idx) | |
| 2624 { | |
| 2625 if (cstack->cs_flags[cstack->cs_idx] & cond_type) | |
| 2626 --*cond_level; | |
| 79 | 2627 if (cstack->cs_flags[cstack->cs_idx] & CSF_FOR) |
| 2628 free_for_info(cstack->cs_forinfo[cstack->cs_idx]); | |
|
22551
86a115a80262
patch 8.2.1824: Vim9: variables at the script level escape their scope
Bram Moolenaar <Bram@vim.org>
parents:
22208
diff
changeset
|
2629 leave_block(cstack); |
| 7 | 2630 } |
| 2631 } | |
| 2632 | |
| 2633 /* | |
|
26861
df2de1e63de0
patch 8.2.3959: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26857
diff
changeset
|
2634 * ":endfunction" or ":enddef" when not after a ":function" |
| 7 | 2635 */ |
| 2636 void | |
|
20029
8fb1cf4c44d5
patch 8.2.0570: Vim9: no error when omitting type from argument
Bram Moolenaar <Bram@vim.org>
parents:
19892
diff
changeset
|
2637 ex_endfunction(exarg_T *eap) |
| 7 | 2638 { |
|
20029
8fb1cf4c44d5
patch 8.2.0570: Vim9: no error when omitting type from argument
Bram Moolenaar <Bram@vim.org>
parents:
19892
diff
changeset
|
2639 if (eap->cmdidx == CMD_enddef) |
|
26861
df2de1e63de0
patch 8.2.3959: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26857
diff
changeset
|
2640 semsg(_(e_str_not_inside_function), ":enddef"); |
|
20029
8fb1cf4c44d5
patch 8.2.0570: Vim9: no error when omitting type from argument
Bram Moolenaar <Bram@vim.org>
parents:
19892
diff
changeset
|
2641 else |
|
26861
df2de1e63de0
patch 8.2.3959: error messages are spread out
Bram Moolenaar <Bram@vim.org>
parents:
26857
diff
changeset
|
2642 semsg(_(e_str_not_inside_function), ":endfunction"); |
| 7 | 2643 } |
| 2644 | |
| 2645 /* | |
| 75 | 2646 * Return TRUE if the string "p" looks like a ":while" or ":for" command. |
| 7 | 2647 */ |
| 2648 int | |
|
7819
f86adafb28d4
commit https://github.com/vim/vim/commit/78c0b7d43e5048fd71d12816659667834170c76d
Christian Brabandt <cb@256bit.org>
parents:
7801
diff
changeset
|
2649 has_loop_cmd(char_u *p) |
| 7 | 2650 { |
| 1447 | 2651 int len; |
| 2652 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2653 // skip modifiers, white space and ':' |
| 1447 | 2654 for (;;) |
| 2655 { | |
| 2656 while (*p == ' ' || *p == '\t' || *p == ':') | |
| 2657 ++p; | |
| 2658 len = modifier_len(p); | |
| 2659 if (len == 0) | |
| 2660 break; | |
| 2661 p += len; | |
| 2662 } | |
| 75 | 2663 if ((p[0] == 'w' && p[1] == 'h') |
| 2664 || (p[0] == 'f' && p[1] == 'o' && p[2] == 'r')) | |
| 7 | 2665 return TRUE; |
| 2666 return FALSE; | |
| 2667 } | |
| 2668 | |
|
18779
8f05b3cf8557
patch 8.1.2379: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18699
diff
changeset
|
2669 #endif // FEAT_EVAL |