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comparison src/vim9script.c @ 20840:0600ab7b9f09 v8.2.0972

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patch 8.2.0972: Vim9 script variable declarations need a type Commit: https://github.com/vim/vim/commit/c82a5b5da5eab15bc35115545b639fb590272ad7 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jun 13 18:09:19 2020 +0200 patch 8.2.0972: Vim9 script variable declarations need a type Problem: Vim9 script variable declarations need a type. Solution: Make "let var: type" declare a script-local variable.
author Bram Moolenaar <Bram@vim.org>
date Sat, 13 Jun 2020 18:15:03 +0200
parents 9faab49c880f
children bacc2ab11810
comparison
equal deleted inserted replaced
20839:7c1e92b152ed 20840:0600ab7b9f09
432 } 432 }
433 } 433 }
434 return cmd_end; 434 return cmd_end;
435 } 435 }
436 436
437 /*
438 * Declare a script-local variable without init: "let var: type".
439 * "const" is an error since the value is missing.
440 * Returns a pointer to after the type.
441 */
442 char_u *
443 vim9_declare_scriptvar(exarg_T *eap, char_u *arg)
444 {
445 char_u *p;
446 char_u *name;
447 scriptitem_T *si = SCRIPT_ITEM(current_sctx.sc_sid);
448 type_T *type;
449 int called_emsg_before = called_emsg;
450 typval_T init_tv;
451
452 if (eap->cmdidx == CMD_const)
453 {
454 emsg(_(e_const_req_value));
455 return arg + STRLEN(arg);
456 }
457
458 // Check for valid starting character.
459 if (!eval_isnamec1(*arg))
460 {
461 semsg(_(e_invarg2), arg);
462 return arg + STRLEN(arg);
463 }
464
465 for (p = arg + 1; *p != NUL && *p != ':' && eval_isnamec(*p);
466 MB_PTR_ADV(p))
467 ;
468
469 if (*p != ':')
470 {
471 emsg(_(e_type_req));
472 return arg + STRLEN(arg);
473 }
474 name = vim_strnsave(arg, p - arg);
475
476 // parse type
477 p = skipwhite(p + 1);
478 type = parse_type(&p, &si->sn_type_list);
479 if (called_emsg != called_emsg_before)
480 return p;
481
482 // Create the variable with 0/NULL value.
483 CLEAR_FIELD(init_tv);
484 init_tv.v_type = type->tt_type;
485 set_var_const(name, type, &init_tv, FALSE, 0);
486
487 vim_free(name);
488 return p;
489 }
490
491
437 #endif // FEAT_EVAL 492 #endif // FEAT_EVAL