1" Test various aspects of the Vim9 script language.
2
3source check.vim
4source term_util.vim
5source view_util.vim
6source vim9.vim
7source shared.vim
8source screendump.vim
9
10def Test_range_only()
11  new
12  setline(1, ['blah', 'Blah'])
13  :/Blah/
14  assert_equal(2, getcurpos()[1])
15  bwipe!
16
17  # without range commands use current line
18  new
19  setline(1, ['one', 'two', 'three'])
20  :2
21  print
22  assert_equal('two', Screenline(&lines))
23  :3
24  list
25  assert_equal('three$', Screenline(&lines))
26
27  # missing command does not print the line
28  var lines =<< trim END
29    vim9script
30    :1|
31    assert_equal('three$', Screenline(&lines))
32    :|
33    assert_equal('three$', Screenline(&lines))
34  END
35  CheckScriptSuccess(lines)
36
37  bwipe!
38
39  # won't generate anything
40  if false
41    :123
42  endif
43enddef
44
45let g:alist = [7]
46let g:astring = 'text'
47let g:anumber = 123
48
49def Test_delfunction()
50  # Check function is defined in script namespace
51  CheckScriptSuccess([
52      'vim9script',
53      'func CheckMe()',
54      '  return 123',
55      'endfunc',
56      'assert_equal(123, s:CheckMe())',
57      ])
58
59  # Check function in script namespace cannot be deleted
60  CheckScriptFailure([
61      'vim9script',
62      'func DeleteMe1()',
63      'endfunc',
64      'delfunction DeleteMe1',
65      ], 'E1084:')
66  CheckScriptFailure([
67      'vim9script',
68      'func DeleteMe2()',
69      'endfunc',
70      'def DoThat()',
71      '  delfunction DeleteMe2',
72      'enddef',
73      'DoThat()',
74      ], 'E1084:')
75  CheckScriptFailure([
76      'vim9script',
77      'def DeleteMe3()',
78      'enddef',
79      'delfunction DeleteMe3',
80      ], 'E1084:')
81  CheckScriptFailure([
82      'vim9script',
83      'def DeleteMe4()',
84      'enddef',
85      'def DoThat()',
86      '  delfunction DeleteMe4',
87      'enddef',
88      'DoThat()',
89      ], 'E1084:')
90
91  # Check that global :def function can be replaced and deleted
92  var lines =<< trim END
93      vim9script
94      def g:Global(): string
95        return "yes"
96      enddef
97      assert_equal("yes", g:Global())
98      def! g:Global(): string
99        return "no"
100      enddef
101      assert_equal("no", g:Global())
102      delfunc g:Global
103      assert_false(exists('*g:Global'))
104  END
105  CheckScriptSuccess(lines)
106
107  # Check that global function can be replaced by a :def function and deleted
108  lines =<< trim END
109      vim9script
110      func g:Global()
111        return "yes"
112      endfunc
113      assert_equal("yes", g:Global())
114      def! g:Global(): string
115        return "no"
116      enddef
117      assert_equal("no", g:Global())
118      delfunc g:Global
119      assert_false(exists('*g:Global'))
120  END
121  CheckScriptSuccess(lines)
122
123  # Check that global :def function can be replaced by a function and deleted
124  lines =<< trim END
125      vim9script
126      def g:Global(): string
127        return "yes"
128      enddef
129      assert_equal("yes", g:Global())
130      func! g:Global()
131        return "no"
132      endfunc
133      assert_equal("no", g:Global())
134      delfunc g:Global
135      assert_false(exists('*g:Global'))
136  END
137  CheckScriptSuccess(lines)
138enddef
139
140def Test_wrong_type()
141  CheckDefFailure(['var name: list<nothing>'], 'E1010:')
142  CheckDefFailure(['var name: list<list<nothing>>'], 'E1010:')
143  CheckDefFailure(['var name: dict<nothing>'], 'E1010:')
144  CheckDefFailure(['var name: dict<dict<nothing>>'], 'E1010:')
145
146  CheckDefFailure(['var name: dict<number'], 'E1009:')
147  CheckDefFailure(['var name: dict<list<number>'], 'E1009:')
148
149  CheckDefFailure(['var name: ally'], 'E1010:')
150  CheckDefFailure(['var name: bram'], 'E1010:')
151  CheckDefFailure(['var name: cathy'], 'E1010:')
152  CheckDefFailure(['var name: dom'], 'E1010:')
153  CheckDefFailure(['var name: freddy'], 'E1010:')
154  CheckDefFailure(['var name: john'], 'E1010:')
155  CheckDefFailure(['var name: larry'], 'E1010:')
156  CheckDefFailure(['var name: ned'], 'E1010:')
157  CheckDefFailure(['var name: pam'], 'E1010:')
158  CheckDefFailure(['var name: sam'], 'E1010:')
159  CheckDefFailure(['var name: vim'], 'E1010:')
160
161  CheckDefFailure(['var Ref: number', 'Ref()'], 'E1085:')
162  CheckDefFailure(['var Ref: string', 'var res = Ref()'], 'E1085:')
163enddef
164
165def Test_script_wrong_type()
166  var lines =<< trim END
167      vim9script
168      var s:dict: dict<string>
169      s:dict['a'] = ['x']
170  END
171  CheckScriptFailure(lines, 'E1012: Type mismatch; expected string but got list<string>', 3)
172enddef
173
174def Test_const()
175  CheckDefFailure(['final name = 234', 'name = 99'], 'E1018:')
176  CheckDefFailure(['final one = 234', 'var one = 99'], 'E1017:')
177  CheckDefFailure(['final list = [1, 2]', 'var list = [3, 4]'], 'E1017:')
178  CheckDefFailure(['final two'], 'E1125:')
179  CheckDefFailure(['final &option'], 'E996:')
180
181  var lines =<< trim END
182    final list = [1, 2, 3]
183    list[0] = 4
184    list->assert_equal([4, 2, 3])
185    const other = [5, 6, 7]
186    other->assert_equal([5, 6, 7])
187
188    var varlist = [7, 8]
189    const constlist = [1, varlist, 3]
190    varlist[0] = 77
191    # TODO: does not work yet
192    # constlist[1][1] = 88
193    var cl = constlist[1]
194    cl[1] = 88
195    constlist->assert_equal([1, [77, 88], 3])
196
197    var vardict = {five: 5, six: 6}
198    const constdict = {one: 1, two: vardict, three: 3}
199    vardict['five'] = 55
200    # TODO: does not work yet
201    # constdict['two']['six'] = 66
202    var cd = constdict['two']
203    cd['six'] = 66
204    constdict->assert_equal({one: 1, two: {five: 55, six: 66}, three: 3})
205  END
206  CheckDefAndScriptSuccess(lines)
207enddef
208
209def Test_const_bang()
210  var lines =<< trim END
211      const var = 234
212      var = 99
213  END
214  CheckDefExecFailure(lines, 'E1018:', 2)
215  CheckScriptFailure(['vim9script'] + lines, 'E46:', 3)
216
217  lines =<< trim END
218      const ll = [2, 3, 4]
219      ll[0] = 99
220  END
221  CheckDefExecFailure(lines, 'E1119:', 2)
222  CheckScriptFailure(['vim9script'] + lines, 'E741:', 3)
223
224  lines =<< trim END
225      const ll = [2, 3, 4]
226      ll[3] = 99
227  END
228  CheckDefExecFailure(lines, 'E1118:', 2)
229  CheckScriptFailure(['vim9script'] + lines, 'E684:', 3)
230
231  lines =<< trim END
232      const dd = {one: 1, two: 2}
233      dd["one"] = 99
234  END
235  CheckDefExecFailure(lines, 'E1121:', 2)
236  CheckScriptFailure(['vim9script'] + lines, 'E741:', 3)
237
238  lines =<< trim END
239      const dd = {one: 1, two: 2}
240      dd["three"] = 99
241  END
242  CheckDefExecFailure(lines, 'E1120:')
243  CheckScriptFailure(['vim9script'] + lines, 'E741:', 3)
244enddef
245
246def Test_range_no_colon()
247  CheckDefFailure(['%s/a/b/'], 'E1050:')
248  CheckDefFailure(['+ s/a/b/'], 'E1050:')
249  CheckDefFailure(['- s/a/b/'], 'E1050:')
250  CheckDefFailure(['. s/a/b/'], 'E1050:')
251enddef
252
253
254def Test_block()
255  var outer = 1
256  {
257    var inner = 2
258    assert_equal(1, outer)
259    assert_equal(2, inner)
260  }
261  assert_equal(1, outer)
262
263  {|echo 'yes'|}
264enddef
265
266def Test_block_failure()
267  CheckDefFailure(['{', 'var inner = 1', '}', 'echo inner'], 'E1001:')
268  CheckDefFailure(['}'], 'E1025:')
269  CheckDefFailure(['{', 'echo 1'], 'E1026:')
270enddef
271
272def Test_block_local_vars()
273  var lines =<< trim END
274      vim9script
275      v:testing = 1
276      if true
277        var text = ['hello']
278        def SayHello(): list<string>
279          return text
280        enddef
281        def SetText(v: string)
282          text = [v]
283        enddef
284      endif
285
286      if true
287        var text = ['again']
288        def SayAgain(): list<string>
289          return text
290        enddef
291      endif
292
293      # test that the "text" variables are not cleaned up
294      test_garbagecollect_now()
295
296      defcompile
297
298      assert_equal(['hello'], SayHello())
299      assert_equal(['again'], SayAgain())
300
301      SetText('foobar')
302      assert_equal(['foobar'], SayHello())
303
304      call writefile(['ok'], 'Xdidit')
305      qall!
306  END
307
308  # need to execute this with a separate Vim instance to avoid the current
309  # context gets garbage collected.
310  writefile(lines, 'Xscript')
311  RunVim([], [], '-S Xscript')
312  assert_equal(['ok'], readfile('Xdidit'))
313
314  delete('Xscript')
315  delete('Xdidit')
316enddef
317
318def Test_block_local_vars_with_func()
319  var lines =<< trim END
320      vim9script
321      if true
322        var foo = 'foo'
323        if true
324          var bar = 'bar'
325          def Func(): list<string>
326            return [foo, bar]
327          enddef
328        endif
329      endif
330      # function is compiled here, after blocks have finished, can still access
331      # "foo" and "bar"
332      assert_equal(['foo', 'bar'], Func())
333  END
334  CheckScriptSuccess(lines)
335enddef
336
337func g:NoSuchFunc()
338  echo 'none'
339endfunc
340
341def Test_try_catch_throw()
342  var l = []
343  try # comment
344    add(l, '1')
345    throw 'wrong'
346    add(l, '2')
347  catch # comment
348    add(l, v:exception)
349  finally # comment
350    add(l, '3')
351  endtry # comment
352  assert_equal(['1', 'wrong', '3'], l)
353
354  l = []
355  try
356    try
357      add(l, '1')
358      throw 'wrong'
359      add(l, '2')
360    catch /right/
361      add(l, v:exception)
362    endtry
363  catch /wrong/
364    add(l, 'caught')
365  fina
366    add(l, 'finally')
367  endtry
368  assert_equal(['1', 'caught', 'finally'], l)
369
370  var n: number
371  try
372    n = l[3]
373  catch /E684:/
374    n = 99
375  endtry
376  assert_equal(99, n)
377
378  var done = 'no'
379  if 0
380    try | catch | endtry
381  else
382    done = 'yes'
383  endif
384  assert_equal('yes', done)
385
386  done = 'no'
387  if 1
388    done = 'yes'
389  else
390    try | catch | endtry
391    done = 'never'
392  endif
393  assert_equal('yes', done)
394
395  if 1
396  else
397    try | catch /pat/ | endtry
398    try | catch /pat/
399    endtry
400    try
401    catch /pat/ | endtry
402    try
403    catch /pat/
404    endtry
405  endif
406
407  try
408    # string slice returns a string, not a number
409    n = g:astring[3]
410  catch /E1012:/
411    n = 77
412  endtry
413  assert_equal(77, n)
414
415  try
416    n = l[g:astring]
417  catch /E1012:/
418    n = 88
419  endtry
420  assert_equal(88, n)
421
422  try
423    n = s:does_not_exist
424  catch /E121:/
425    n = 111
426  endtry
427  assert_equal(111, n)
428
429  try
430    n = g:does_not_exist
431  catch /E121:/
432    n = 121
433  endtry
434  assert_equal(121, n)
435
436  var d = {one: 1}
437  try
438    n = d[g:astring]
439  catch /E716:/
440    n = 222
441  endtry
442  assert_equal(222, n)
443
444  try
445    n = -g:astring
446  catch /E39:/
447    n = 233
448  endtry
449  assert_equal(233, n)
450
451  try
452    n = +g:astring
453  catch /E1030:/
454    n = 244
455  endtry
456  assert_equal(244, n)
457
458  try
459    n = +g:alist
460  catch /E745:/
461    n = 255
462  endtry
463  assert_equal(255, n)
464
465  var nd: dict<any>
466  try
467    nd = {[g:alist]: 1}
468  catch /E1105:/
469    n = 266
470  endtry
471  assert_equal(266, n)
472
473  try
474    [n] = [1, 2, 3]
475  catch /E1093:/
476    n = 277
477  endtry
478  assert_equal(277, n)
479
480  try
481    &ts = g:astring
482  catch /E1012:/
483    n = 288
484  endtry
485  assert_equal(288, n)
486
487  try
488    &backspace = 'asdf'
489  catch /E474:/
490    n = 299
491  endtry
492  assert_equal(299, n)
493
494  l = [1]
495  try
496    l[3] = 3
497  catch /E684:/
498    n = 300
499  endtry
500  assert_equal(300, n)
501
502  try
503    unlet g:does_not_exist
504  catch /E108:/
505    n = 322
506  endtry
507  assert_equal(322, n)
508
509  try
510    d = {text: 1, [g:astring]: 2}
511  catch /E721:/
512    n = 333
513  endtry
514  assert_equal(333, n)
515
516  try
517    l = DeletedFunc()
518  catch /E933:/
519    n = 344
520  endtry
521  assert_equal(344, n)
522
523  try
524    echo len(v:true)
525  catch /E701:/
526    n = 355
527  endtry
528  assert_equal(355, n)
529
530  var P = function('g:NoSuchFunc')
531  delfunc g:NoSuchFunc
532  try
533    echo P()
534  catch /E117:/
535    n = 366
536  endtry
537  assert_equal(366, n)
538
539  try
540    echo g:NoSuchFunc()
541  catch /E117:/
542    n = 377
543  endtry
544  assert_equal(377, n)
545
546  try
547    echo g:alist + 4
548  catch /E745:/
549    n = 388
550  endtry
551  assert_equal(388, n)
552
553  try
554    echo 4 + g:alist
555  catch /E745:/
556    n = 399
557  endtry
558  assert_equal(399, n)
559
560  try
561    echo g:alist.member
562  catch /E715:/
563    n = 400
564  endtry
565  assert_equal(400, n)
566
567  try
568    echo d.member
569  catch /E716:/
570    n = 411
571  endtry
572  assert_equal(411, n)
573
574  var counter = 0
575  for i in range(4)
576    try
577      eval [][0]
578    catch
579    endtry
580    counter += 1
581  endfor
582  assert_equal(4, counter)
583
584  # return in finally after empty catch
585  def ReturnInFinally(): number
586    try
587    finally
588      return 4
589    endtry
590    return 2
591  enddef
592  assert_equal(4, ReturnInFinally())
593enddef
594
595" :while at the very start of a function that :continue jumps to
596def TryContinueFunc()
597 while g:Count < 2
598   g:sequence ..= 't'
599    try
600      echoerr 'Test'
601    catch
602      g:Count += 1
603      g:sequence ..= 'c'
604      continue
605    endtry
606    g:sequence ..= 'e'
607    g:Count += 1
608  endwhile
609enddef
610
611def Test_continue_in_try_in_while()
612  g:Count = 0
613  g:sequence = ''
614  TryContinueFunc()
615  assert_equal('tctc', g:sequence)
616  unlet g:Count
617  unlet g:sequence
618enddef
619
620def Test_nocatch_return_in_try()
621  # return in try block returns normally
622  def ReturnInTry(): string
623    try
624      return '"some message"'
625    catch
626    endtry
627    return 'not reached'
628  enddef
629  exe 'echoerr ' .. ReturnInTry()
630enddef
631
632def Test_cnext_works_in_catch()
633  var lines =<< trim END
634      vim9script
635      au BufEnter * eval 0
636      writefile(['text'], 'Xfile1')
637      writefile(['text'], 'Xfile2')
638      var items = [
639          {lnum: 1, filename: 'Xfile1', valid: true},
640          {lnum: 1, filename: 'Xfile2', valid: true}
641        ]
642      setqflist([], ' ', {items: items})
643      cwindow
644
645      def CnextOrCfirst()
646        # if cnext fails, cfirst is used
647        try
648          cnext
649        catch
650          cfirst
651        endtry
652      enddef
653
654      CnextOrCfirst()
655      CnextOrCfirst()
656      writefile([getqflist({idx: 0}).idx], 'Xresult')
657      qall
658  END
659  writefile(lines, 'XCatchCnext')
660  RunVim([], [], '--clean -S XCatchCnext')
661  assert_equal(['1'], readfile('Xresult'))
662
663  delete('Xfile1')
664  delete('Xfile2')
665  delete('XCatchCnext')
666  delete('Xresult')
667enddef
668
669def Test_throw_skipped()
670  if 0
671    throw dontgethere
672  endif
673enddef
674
675def Test_nocatch_throw_silenced()
676  var lines =<< trim END
677    vim9script
678    def Func()
679      throw 'error'
680    enddef
681    silent! Func()
682  END
683  writefile(lines, 'XthrowSilenced')
684  source XthrowSilenced
685  delete('XthrowSilenced')
686enddef
687
688def DeletedFunc(): list<any>
689  return ['delete me']
690enddef
691defcompile
692delfunc DeletedFunc
693
694def ThrowFromDef()
695  throw "getout" # comment
696enddef
697
698func CatchInFunc()
699  try
700    call ThrowFromDef()
701  catch
702    let g:thrown_func = v:exception
703  endtry
704endfunc
705
706def CatchInDef()
707  try
708    ThrowFromDef()
709  catch
710    g:thrown_def = v:exception
711  endtry
712enddef
713
714def ReturnFinally(): string
715  try
716    return 'intry'
717  finall
718    g:in_finally = 'finally'
719  endtry
720  return 'end'
721enddef
722
723def Test_try_catch_nested()
724  CatchInFunc()
725  assert_equal('getout', g:thrown_func)
726
727  CatchInDef()
728  assert_equal('getout', g:thrown_def)
729
730  assert_equal('intry', ReturnFinally())
731  assert_equal('finally', g:in_finally)
732enddef
733
734def TryOne(): number
735  try
736    return 0
737  catch
738  endtry
739  return 0
740enddef
741
742def TryTwo(n: number): string
743  try
744    var x = {}
745  catch
746  endtry
747  return 'text'
748enddef
749
750def Test_try_catch_twice()
751  assert_equal('text', TryOne()->TryTwo())
752enddef
753
754def Test_try_catch_match()
755  var seq = 'a'
756  try
757    throw 'something'
758  catch /nothing/
759    seq ..= 'x'
760  catch /some/
761    seq ..= 'b'
762  catch /asdf/
763    seq ..= 'x'
764  catch ?a\?sdf?
765    seq ..= 'y'
766  finally
767    seq ..= 'c'
768  endtry
769  assert_equal('abc', seq)
770enddef
771
772def Test_try_catch_fails()
773  CheckDefFailure(['catch'], 'E603:')
774  CheckDefFailure(['try', 'echo 0', 'catch', 'catch'], 'E1033:')
775  CheckDefFailure(['try', 'echo 0', 'catch /pat'], 'E1067:')
776  CheckDefFailure(['finally'], 'E606:')
777  CheckDefFailure(['try', 'echo 0', 'finally', 'echo 1', 'finally'], 'E607:')
778  CheckDefFailure(['endtry'], 'E602:')
779  CheckDefFailure(['while 1', 'endtry'], 'E170:')
780  CheckDefFailure(['for i in range(5)', 'endtry'], 'E170:')
781  CheckDefFailure(['if 1', 'endtry'], 'E171:')
782  CheckDefFailure(['try', 'echo 1', 'endtry'], 'E1032:')
783
784  CheckDefFailure(['throw'], 'E1143:')
785  CheckDefFailure(['throw xxx'], 'E1001:')
786enddef
787
788def Try_catch_skipped()
789  var l = []
790  try
791  finally
792  endtry
793
794  if 1
795  else
796    try
797    endtry
798  endif
799enddef
800
801" The skipped try/endtry was updating the wrong instruction.
802def Test_try_catch_skipped()
803  var instr = execute('disassemble Try_catch_skipped')
804  assert_match("NEWLIST size 0\n", instr)
805enddef
806
807
808
809def Test_throw_vimscript()
810  # only checks line continuation
811  var lines =<< trim END
812      vim9script
813      try
814        throw 'one'
815              .. 'two'
816      catch
817        assert_equal('onetwo', v:exception)
818      endtry
819  END
820  CheckScriptSuccess(lines)
821
822  lines =<< trim END
823    vim9script
824    @r = ''
825    def Func()
826      throw @r
827    enddef
828    var result = ''
829    try
830      Func()
831    catch /E1129:/
832      result = 'caught'
833    endtry
834    assert_equal('caught', result)
835  END
836  CheckScriptSuccess(lines)
837enddef
838
839def Test_error_in_nested_function()
840  # an error in a nested :function aborts executing in the calling :def function
841  var lines =<< trim END
842      vim9script
843      def Func()
844        Error()
845        g:test_var = 1
846      enddef
847      func Error() abort
848        eval [][0]
849      endfunc
850      Func()
851  END
852  g:test_var = 0
853  CheckScriptFailure(lines, 'E684:')
854  assert_equal(0, g:test_var)
855enddef
856
857def Test_abort_after_error()
858  var lines =<< trim END
859      vim9script
860      while true
861        echo notfound
862      endwhile
863      g:gotthere = true
864  END
865  g:gotthere = false
866  CheckScriptFailure(lines, 'E121:')
867  assert_false(g:gotthere)
868  unlet g:gotthere
869enddef
870
871def Test_cexpr_vimscript()
872  # only checks line continuation
873  set errorformat=File\ %f\ line\ %l
874  var lines =<< trim END
875      vim9script
876      cexpr 'File'
877                .. ' someFile' ..
878                   ' line 19'
879      assert_equal(19, getqflist()[0].lnum)
880  END
881  CheckScriptSuccess(lines)
882  set errorformat&
883enddef
884
885def Test_statusline_syntax()
886  # legacy syntax is used for 'statusline'
887  var lines =<< trim END
888      vim9script
889      func g:Status()
890        return '%{"x" is# "x"}'
891      endfunc
892      set laststatus=2 statusline=%!Status()
893      redrawstatus
894      set laststatus statusline=
895  END
896  CheckScriptSuccess(lines)
897enddef
898
899def Test_list_vimscript()
900  # checks line continuation and comments
901  var lines =<< trim END
902      vim9script
903      var mylist = [
904            'one',
905            # comment
906            'two', # empty line follows
907
908            'three',
909            ]
910      assert_equal(['one', 'two', 'three'], mylist)
911  END
912  CheckScriptSuccess(lines)
913
914  # check all lines from heredoc are kept
915  lines =<< trim END
916      # comment 1
917      two
918      # comment 3
919
920      five
921      # comment 6
922  END
923  assert_equal(['# comment 1', 'two', '# comment 3', '', 'five', '# comment 6'], lines)
924
925  lines =<< trim END
926    [{
927      a: 0}]->string()->assert_equal("[{'a': 0}]")
928  END
929  CheckDefAndScriptSuccess(lines)
930enddef
931
932if has('channel')
933  let someJob = test_null_job()
934
935  def FuncWithError()
936    echomsg g:someJob
937  enddef
938
939  func Test_convert_emsg_to_exception()
940    try
941      call FuncWithError()
942    catch
943      call assert_match('Vim:E908:', v:exception)
944    endtry
945  endfunc
946endif
947
948let s:export_script_lines =<< trim END
949  vim9script
950  var name: string = 'bob'
951  def Concat(arg: string): string
952    return name .. arg
953  enddef
954  g:result = Concat('bie')
955  g:localname = name
956
957  export const CONST = 1234
958  export var exported = 9876
959  export var exp_name = 'John'
960  export def Exported(): string
961    return 'Exported'
962  enddef
963  export final theList = [1]
964END
965
966def Undo_export_script_lines()
967  unlet g:result
968  unlet g:localname
969enddef
970
971def Test_vim9_import_export()
972  var import_script_lines =<< trim END
973    vim9script
974    import {exported, Exported} from './Xexport.vim'
975    g:imported = exported
976    exported += 3
977    g:imported_added = exported
978    g:imported_func = Exported()
979
980    def GetExported(): string
981      var local_dict = {ref: Exported}
982      return local_dict.ref()
983    enddef
984    g:funcref_result = GetExported()
985
986    import {exp_name} from './Xexport.vim'
987    g:imported_name = exp_name
988    exp_name ..= ' Doe'
989    g:imported_name_appended = exp_name
990    g:imported_later = exported
991
992    import theList from './Xexport.vim'
993    theList->add(2)
994    assert_equal([1, 2], theList)
995  END
996
997  writefile(import_script_lines, 'Ximport.vim')
998  writefile(s:export_script_lines, 'Xexport.vim')
999
1000  source Ximport.vim
1001
1002  assert_equal('bobbie', g:result)
1003  assert_equal('bob', g:localname)
1004  assert_equal(9876, g:imported)
1005  assert_equal(9879, g:imported_added)
1006  assert_equal(9879, g:imported_later)
1007  assert_equal('Exported', g:imported_func)
1008  assert_equal('Exported', g:funcref_result)
1009  assert_equal('John', g:imported_name)
1010  assert_equal('John Doe', g:imported_name_appended)
1011  assert_false(exists('g:name'))
1012
1013  Undo_export_script_lines()
1014  unlet g:imported
1015  unlet g:imported_added
1016  unlet g:imported_later
1017  unlet g:imported_func
1018  unlet g:imported_name g:imported_name_appended
1019  delete('Ximport.vim')
1020
1021  # similar, with line breaks
1022  var import_line_break_script_lines =<< trim END
1023    vim9script
1024    import {
1025        exported,
1026        Exported,
1027        }
1028        from
1029        './Xexport.vim'
1030    g:imported = exported
1031    exported += 5
1032    g:imported_added = exported
1033    g:imported_func = Exported()
1034  END
1035  writefile(import_line_break_script_lines, 'Ximport_lbr.vim')
1036  source Ximport_lbr.vim
1037
1038  assert_equal(9876, g:imported)
1039  assert_equal(9881, g:imported_added)
1040  assert_equal('Exported', g:imported_func)
1041
1042  # exported script not sourced again
1043  assert_false(exists('g:result'))
1044  unlet g:imported
1045  unlet g:imported_added
1046  unlet g:imported_func
1047  delete('Ximport_lbr.vim')
1048
1049  # import inside :def function
1050  var import_in_def_lines =<< trim END
1051    vim9script
1052    def ImportInDef()
1053      import exported from './Xexport.vim'
1054      g:imported = exported
1055      exported += 7
1056      g:imported_added = exported
1057    enddef
1058    ImportInDef()
1059  END
1060  writefile(import_in_def_lines, 'Ximport2.vim')
1061  source Ximport2.vim
1062  # TODO: this should be 9879
1063  assert_equal(9876, g:imported)
1064  assert_equal(9883, g:imported_added)
1065  unlet g:imported
1066  unlet g:imported_added
1067  delete('Ximport2.vim')
1068
1069  var import_star_as_lines =<< trim END
1070    vim9script
1071    import * as Export from './Xexport.vim'
1072    def UseExport()
1073      g:imported_def = Export.exported
1074    enddef
1075    g:imported_script = Export.exported
1076    assert_equal(1, exists('Export.exported'))
1077    assert_equal(0, exists('Export.notexported'))
1078    UseExport()
1079  END
1080  writefile(import_star_as_lines, 'Ximport.vim')
1081  source Ximport.vim
1082  assert_equal(9883, g:imported_def)
1083  assert_equal(9883, g:imported_script)
1084
1085  var import_star_as_lines_no_dot =<< trim END
1086    vim9script
1087    import * as Export from './Xexport.vim'
1088    def Func()
1089      var dummy = 1
1090      var imported = Export + dummy
1091    enddef
1092    defcompile
1093  END
1094  writefile(import_star_as_lines_no_dot, 'Ximport.vim')
1095  assert_fails('source Ximport.vim', 'E1060:', '', 2, 'Func')
1096
1097  var import_star_as_lines_dot_space =<< trim END
1098    vim9script
1099    import * as Export from './Xexport.vim'
1100    def Func()
1101      var imported = Export . exported
1102    enddef
1103    defcompile
1104  END
1105  writefile(import_star_as_lines_dot_space, 'Ximport.vim')
1106  assert_fails('source Ximport.vim', 'E1074:', '', 1, 'Func')
1107
1108  var import_star_as_duplicated =<< trim END
1109    vim9script
1110    import * as Export from './Xexport.vim'
1111    var some = 'other'
1112    import * as Export from './Xexport.vim'
1113    defcompile
1114  END
1115  writefile(import_star_as_duplicated, 'Ximport.vim')
1116  assert_fails('source Ximport.vim', 'E1073:', '', 4, 'Ximport.vim')
1117
1118  var import_star_as_lines_script_no_dot =<< trim END
1119    vim9script
1120    import * as Export from './Xexport.vim'
1121    g:imported_script = Export exported
1122  END
1123  writefile(import_star_as_lines_script_no_dot, 'Ximport.vim')
1124  assert_fails('source Ximport.vim', 'E1029:')
1125
1126  var import_star_as_lines_script_space_after_dot =<< trim END
1127    vim9script
1128    import * as Export from './Xexport.vim'
1129    g:imported_script = Export. exported
1130  END
1131  writefile(import_star_as_lines_script_space_after_dot, 'Ximport.vim')
1132  assert_fails('source Ximport.vim', 'E1074:')
1133
1134  var import_star_as_lines_missing_name =<< trim END
1135    vim9script
1136    import * as Export from './Xexport.vim'
1137    def Func()
1138      var imported = Export.
1139    enddef
1140    defcompile
1141  END
1142  writefile(import_star_as_lines_missing_name, 'Ximport.vim')
1143  assert_fails('source Ximport.vim', 'E1048:', '', 1, 'Func')
1144
1145  var import_star_as_lbr_lines =<< trim END
1146    vim9script
1147    import *
1148        as Export
1149        from
1150        './Xexport.vim'
1151    def UseExport()
1152      g:imported = Export.exported
1153    enddef
1154    UseExport()
1155  END
1156  writefile(import_star_as_lbr_lines, 'Ximport.vim')
1157  source Ximport.vim
1158  assert_equal(9883, g:imported)
1159
1160  var import_star_lines =<< trim END
1161    vim9script
1162    import * from './Xexport.vim'
1163  END
1164  writefile(import_star_lines, 'Ximport.vim')
1165  assert_fails('source Ximport.vim', 'E1045:', '', 2, 'Ximport.vim')
1166
1167  # try to import something that exists but is not exported
1168  var import_not_exported_lines =<< trim END
1169    vim9script
1170    import name from './Xexport.vim'
1171  END
1172  writefile(import_not_exported_lines, 'Ximport.vim')
1173  assert_fails('source Ximport.vim', 'E1049:', '', 2, 'Ximport.vim')
1174
1175  # try to import something that is already defined
1176  var import_already_defined =<< trim END
1177    vim9script
1178    var exported = 'something'
1179    import exported from './Xexport.vim'
1180  END
1181  writefile(import_already_defined, 'Ximport.vim')
1182  assert_fails('source Ximport.vim', 'E1054:', '', 3, 'Ximport.vim')
1183
1184  # try to import something that is already defined
1185  import_already_defined =<< trim END
1186    vim9script
1187    var exported = 'something'
1188    import * as exported from './Xexport.vim'
1189  END
1190  writefile(import_already_defined, 'Ximport.vim')
1191  assert_fails('source Ximport.vim', 'E1054:', '', 3, 'Ximport.vim')
1192
1193  # try to import something that is already defined
1194  import_already_defined =<< trim END
1195    vim9script
1196    var exported = 'something'
1197    import {exported} from './Xexport.vim'
1198  END
1199  writefile(import_already_defined, 'Ximport.vim')
1200  assert_fails('source Ximport.vim', 'E1054:', '', 3, 'Ximport.vim')
1201
1202  # try changing an imported const
1203  var import_assign_to_const =<< trim END
1204    vim9script
1205    import CONST from './Xexport.vim'
1206    def Assign()
1207      CONST = 987
1208    enddef
1209    defcompile
1210  END
1211  writefile(import_assign_to_const, 'Ximport.vim')
1212  assert_fails('source Ximport.vim', 'E46:', '', 1, '_Assign')
1213
1214  # try changing an imported final
1215  var import_assign_to_final =<< trim END
1216    vim9script
1217    import theList from './Xexport.vim'
1218    def Assign()
1219      theList = [2]
1220    enddef
1221    defcompile
1222  END
1223  writefile(import_assign_to_final, 'Ximport.vim')
1224  assert_fails('source Ximport.vim', 'E46:', '', 1, '_Assign')
1225
1226  # import a very long name, requires making a copy
1227  var import_long_name_lines =<< trim END
1228    vim9script
1229    import name012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789 from './Xexport.vim'
1230  END
1231  writefile(import_long_name_lines, 'Ximport.vim')
1232  assert_fails('source Ximport.vim', 'E1048:', '', 2, 'Ximport.vim')
1233
1234  var import_no_from_lines =<< trim END
1235    vim9script
1236    import name './Xexport.vim'
1237  END
1238  writefile(import_no_from_lines, 'Ximport.vim')
1239  assert_fails('source Ximport.vim', 'E1070:', '', 2, 'Ximport.vim')
1240
1241  var import_invalid_string_lines =<< trim END
1242    vim9script
1243    import name from Xexport.vim
1244  END
1245  writefile(import_invalid_string_lines, 'Ximport.vim')
1246  assert_fails('source Ximport.vim', 'E1071:', '', 2, 'Ximport.vim')
1247
1248  var import_wrong_name_lines =<< trim END
1249    vim9script
1250    import name from './XnoExport.vim'
1251  END
1252  writefile(import_wrong_name_lines, 'Ximport.vim')
1253  assert_fails('source Ximport.vim', 'E1053:', '', 2, 'Ximport.vim')
1254
1255  var import_missing_comma_lines =<< trim END
1256    vim9script
1257    import {exported name} from './Xexport.vim'
1258  END
1259  writefile(import_missing_comma_lines, 'Ximport3.vim')
1260  assert_fails('source Ximport3.vim', 'E1046:', '', 2, 'Ximport3.vim')
1261
1262  delete('Ximport.vim')
1263  delete('Ximport3.vim')
1264  delete('Xexport.vim')
1265
1266  # Check that in a Vim9 script 'cpo' is set to the Vim default.
1267  # Flags added or removed are also applied to the restored value.
1268  set cpo=abcd
1269  var lines =<< trim END
1270    vim9script
1271    g:cpo_in_vim9script = &cpo
1272    set cpo+=f
1273    set cpo-=c
1274    g:cpo_after_vim9script = &cpo
1275  END
1276  writefile(lines, 'Xvim9_script')
1277  source Xvim9_script
1278  assert_equal('fabd', &cpo)
1279  set cpo&vim
1280  assert_equal(&cpo, g:cpo_in_vim9script)
1281  var newcpo = substitute(&cpo, 'c', '', '') .. 'f'
1282  assert_equal(newcpo, g:cpo_after_vim9script)
1283
1284  delete('Xvim9_script')
1285enddef
1286
1287def Test_import_as()
1288  var export_lines =<< trim END
1289    vim9script
1290    export var one = 1
1291    export var yes = 'yes'
1292  END
1293  writefile(export_lines, 'XexportAs')
1294
1295  var import_lines =<< trim END
1296    vim9script
1297    var one = 'notused'
1298    var yes = 777
1299    import one as thatOne from './XexportAs'
1300    assert_equal(1, thatOne)
1301    import yes as yesYes from './XexportAs'
1302    assert_equal('yes', yesYes)
1303  END
1304  CheckScriptSuccess(import_lines)
1305
1306  import_lines =<< trim END
1307    vim9script
1308    import {one as thatOne, yes as yesYes} from './XexportAs'
1309    assert_equal(1, thatOne)
1310    assert_equal('yes', yesYes)
1311    assert_fails('echo one', 'E121:')
1312    assert_fails('echo yes', 'E121:')
1313  END
1314  CheckScriptSuccess(import_lines)
1315
1316  delete('XexportAs')
1317enddef
1318
1319func g:Trigger()
1320  source Ximport.vim
1321  return "echo 'yes'\<CR>"
1322endfunc
1323
1324def Test_import_export_expr_map()
1325  # check that :import and :export work when buffer is locked
1326  var export_lines =<< trim END
1327    vim9script
1328    export def That(): string
1329      return 'yes'
1330    enddef
1331  END
1332  writefile(export_lines, 'Xexport_that.vim')
1333
1334  var import_lines =<< trim END
1335    vim9script
1336    import That from './Xexport_that.vim'
1337    assert_equal('yes', That())
1338  END
1339  writefile(import_lines, 'Ximport.vim')
1340
1341  nnoremap <expr> trigger g:Trigger()
1342  feedkeys('trigger', "xt")
1343
1344  delete('Xexport_that.vim')
1345  delete('Ximport.vim')
1346  nunmap trigger
1347enddef
1348
1349def Test_import_in_filetype()
1350  # check that :import works when the buffer is locked
1351  mkdir('ftplugin', 'p')
1352  var export_lines =<< trim END
1353    vim9script
1354    export var That = 'yes'
1355  END
1356  writefile(export_lines, 'ftplugin/Xexport_ft.vim')
1357
1358  var import_lines =<< trim END
1359    vim9script
1360    import That from './Xexport_ft.vim'
1361    assert_equal('yes', That)
1362    g:did_load_mytpe = 1
1363  END
1364  writefile(import_lines, 'ftplugin/qf.vim')
1365
1366  var save_rtp = &rtp
1367  &rtp = getcwd() .. ',' .. &rtp
1368
1369  filetype plugin on
1370  copen
1371  assert_equal(1, g:did_load_mytpe)
1372
1373  quit!
1374  delete('Xexport_ft.vim')
1375  delete('ftplugin', 'rf')
1376  &rtp = save_rtp
1377enddef
1378
1379def Test_use_import_in_mapping()
1380  var lines =<< trim END
1381      vim9script
1382      export def Funcx()
1383        g:result = 42
1384      enddef
1385  END
1386  writefile(lines, 'XsomeExport.vim')
1387  lines =<< trim END
1388      vim9script
1389      import Funcx from './XsomeExport.vim'
1390      nnoremap <F3> :call <sid>Funcx()<cr>
1391  END
1392  writefile(lines, 'Xmapscript.vim')
1393
1394  source Xmapscript.vim
1395  feedkeys("\<F3>", "xt")
1396  assert_equal(42, g:result)
1397
1398  unlet g:result
1399  delete('XsomeExport.vim')
1400  delete('Xmapscript.vim')
1401  nunmap <F3>
1402enddef
1403
1404def Test_vim9script_mix()
1405  var lines =<< trim END
1406    if has(g:feature)
1407      " legacy script
1408      let g:legacy = 1
1409      finish
1410    endif
1411    vim9script
1412    g:legacy = 0
1413  END
1414  g:feature = 'eval'
1415  g:legacy = -1
1416  CheckScriptSuccess(lines)
1417  assert_equal(1, g:legacy)
1418
1419  g:feature = 'noteval'
1420  g:legacy = -1
1421  CheckScriptSuccess(lines)
1422  assert_equal(0, g:legacy)
1423enddef
1424
1425def Test_vim9script_fails()
1426  CheckScriptFailure(['scriptversion 2', 'vim9script'], 'E1039:')
1427  CheckScriptFailure(['vim9script', 'scriptversion 2'], 'E1040:')
1428  CheckScriptFailure(['export var some = 123'], 'E1042:')
1429  CheckScriptFailure(['import some from "./Xexport.vim"'], 'E1048:')
1430  CheckScriptFailure(['vim9script', 'export var g:some'], 'E1022:')
1431  CheckScriptFailure(['vim9script', 'export echo 134'], 'E1043:')
1432
1433  CheckScriptFailure(['vim9script', 'var str: string', 'str = 1234'], 'E1012:')
1434  CheckScriptFailure(['vim9script', 'const str = "asdf"', 'str = "xxx"'], 'E46:')
1435
1436  assert_fails('vim9script', 'E1038:')
1437  assert_fails('export something', 'E1043:')
1438enddef
1439
1440func Test_import_fails_without_script()
1441  CheckRunVimInTerminal
1442
1443  " call indirectly to avoid compilation error for missing functions
1444  call Run_Test_import_fails_on_command_line()
1445endfunc
1446
1447def Run_Test_import_fails_on_command_line()
1448  var export =<< trim END
1449    vim9script
1450    export def Foo(): number
1451        return 0
1452    enddef
1453  END
1454  writefile(export, 'XexportCmd.vim')
1455
1456  var buf = RunVimInTerminal('-c "import Foo from ''./XexportCmd.vim''"', {
1457                rows: 6, wait_for_ruler: 0})
1458  WaitForAssert(() => assert_match('^E1094:', term_getline(buf, 5)))
1459
1460  delete('XexportCmd.vim')
1461  StopVimInTerminal(buf)
1462enddef
1463
1464def Test_vim9script_reload_noclear()
1465  var lines =<< trim END
1466    vim9script
1467    export var exported = 'thexport'
1468  END
1469  writefile(lines, 'XExportReload')
1470  lines =<< trim END
1471    vim9script noclear
1472    g:loadCount += 1
1473    var s:reloaded = 'init'
1474    import exported from './XExportReload'
1475
1476    def Again(): string
1477      return 'again'
1478    enddef
1479
1480    if exists('s:loaded') | finish | endif
1481    var s:loaded = true
1482
1483    var s:notReloaded = 'yes'
1484    s:reloaded = 'first'
1485    def g:Values(): list<string>
1486      return [s:reloaded, s:notReloaded, Again(), Once(), exported]
1487    enddef
1488
1489    def Once(): string
1490      return 'once'
1491    enddef
1492  END
1493  writefile(lines, 'XReloaded')
1494  g:loadCount = 0
1495  source XReloaded
1496  assert_equal(1, g:loadCount)
1497  assert_equal(['first', 'yes', 'again', 'once', 'thexport'], g:Values())
1498  source XReloaded
1499  assert_equal(2, g:loadCount)
1500  assert_equal(['init', 'yes', 'again', 'once', 'thexport'], g:Values())
1501  source XReloaded
1502  assert_equal(3, g:loadCount)
1503  assert_equal(['init', 'yes', 'again', 'once', 'thexport'], g:Values())
1504
1505  delete('XReloaded')
1506  delete('XExportReload')
1507  delfunc g:Values
1508  unlet g:loadCount
1509enddef
1510
1511def Test_vim9script_reload_import()
1512  var lines =<< trim END
1513    vim9script
1514    const var = ''
1515    var valone = 1234
1516    def MyFunc(arg: string)
1517       valone = 5678
1518    enddef
1519  END
1520  var morelines =<< trim END
1521    var valtwo = 222
1522    export def GetValtwo(): number
1523      return valtwo
1524    enddef
1525  END
1526  writefile(lines + morelines, 'Xreload.vim')
1527  source Xreload.vim
1528  source Xreload.vim
1529  source Xreload.vim
1530
1531  var testlines =<< trim END
1532    vim9script
1533    def TheFunc()
1534      import GetValtwo from './Xreload.vim'
1535      assert_equal(222, GetValtwo())
1536    enddef
1537    TheFunc()
1538  END
1539  writefile(testlines, 'Ximport.vim')
1540  source Ximport.vim
1541
1542  # Test that when not using "morelines" GetValtwo() and valtwo are still
1543  # defined, because import doesn't reload a script.
1544  writefile(lines, 'Xreload.vim')
1545  source Ximport.vim
1546
1547  # cannot declare a var twice
1548  lines =<< trim END
1549    vim9script
1550    var valone = 1234
1551    var valone = 5678
1552  END
1553  writefile(lines, 'Xreload.vim')
1554  assert_fails('source Xreload.vim', 'E1041:', '', 3, 'Xreload.vim')
1555
1556  delete('Xreload.vim')
1557  delete('Ximport.vim')
1558enddef
1559
1560" if a script is reloaded with a script-local variable that changed its type, a
1561" compiled function using that variable must fail.
1562def Test_script_reload_change_type()
1563  var lines =<< trim END
1564    vim9script noclear
1565    var str = 'string'
1566    def g:GetStr(): string
1567      return str .. 'xxx'
1568    enddef
1569  END
1570  writefile(lines, 'Xreload.vim')
1571  source Xreload.vim
1572  echo g:GetStr()
1573
1574  lines =<< trim END
1575    vim9script noclear
1576    var str = 1234
1577  END
1578  writefile(lines, 'Xreload.vim')
1579  source Xreload.vim
1580  assert_fails('echo g:GetStr()', 'E1150:')
1581
1582  delfunc g:GetStr
1583  delete('Xreload.vim')
1584enddef
1585
1586" Define CallFunc so that the test can be compiled
1587command CallFunc echo 'nop'
1588
1589def Test_script_reload_from_function()
1590  var lines =<< trim END
1591      vim9script
1592
1593      if exists('g:loaded')
1594        finish
1595      endif
1596      g:loaded = 1
1597      delcommand CallFunc
1598      command CallFunc Func()
1599      def Func()
1600        so XreloadFunc.vim
1601        g:didTheFunc = 1
1602      enddef
1603  END
1604  writefile(lines, 'XreloadFunc.vim')
1605  source XreloadFunc.vim
1606  CallFunc
1607  assert_equal(1, g:didTheFunc)
1608
1609  delete('XreloadFunc.vim')
1610  delcommand CallFunc
1611  unlet g:loaded
1612  unlet g:didTheFunc
1613enddef
1614
1615def Test_script_var_shadows_function()
1616  var lines =<< trim END
1617      vim9script
1618      def Func(): number
1619        return 123
1620      enddef
1621      var Func = 1
1622  END
1623  CheckScriptFailure(lines, 'E1041:', 5)
1624enddef
1625
1626def s:RetSome(): string
1627  return 'some'
1628enddef
1629
1630" Not exported function that is referenced needs to be accessed by the
1631" script-local name.
1632def Test_vim9script_funcref()
1633  var sortlines =<< trim END
1634      vim9script
1635      def Compare(i1: number, i2: number): number
1636        return i2 - i1
1637      enddef
1638
1639      export def FastSort(): list<number>
1640        return range(5)->sort(Compare)
1641      enddef
1642
1643      export def GetString(arg: string): string
1644        return arg
1645      enddef
1646  END
1647  writefile(sortlines, 'Xsort.vim')
1648
1649  var lines =<< trim END
1650    vim9script
1651    import FastSort from './Xsort.vim'
1652    def Test()
1653      g:result = FastSort()
1654    enddef
1655    Test()
1656
1657    # using a function imported with "as"
1658    import * as anAlias from './Xsort.vim'
1659    assert_equal('yes', anAlias.GetString('yes'))
1660
1661    # using the function from a compiled function
1662    def TestMore(): string
1663      var s = s:anAlias.GetString('foo')
1664      return s .. anAlias.GetString('bar')
1665    enddef
1666    assert_equal('foobar', TestMore())
1667
1668    # error when using a function that isn't exported
1669    assert_fails('anAlias.Compare(1, 2)', 'E1049:')
1670  END
1671  writefile(lines, 'Xscript.vim')
1672
1673  source Xscript.vim
1674  assert_equal([4, 3, 2, 1, 0], g:result)
1675
1676  unlet g:result
1677  delete('Xsort.vim')
1678  delete('Xscript.vim')
1679
1680  var Funcref = function('s:RetSome')
1681  assert_equal('some', Funcref())
1682enddef
1683
1684" Check that when searching for "FilterFunc" it finds the import in the
1685" script where FastFilter() is called from, both as a string and as a direct
1686" function reference.
1687def Test_vim9script_funcref_other_script()
1688  var filterLines =<< trim END
1689    vim9script
1690    export def FilterFunc(idx: number, val: number): bool
1691      return idx % 2 == 1
1692    enddef
1693    export def FastFilter(): list<number>
1694      return range(10)->filter('FilterFunc')
1695    enddef
1696    export def FastFilterDirect(): list<number>
1697      return range(10)->filter(FilterFunc)
1698    enddef
1699  END
1700  writefile(filterLines, 'Xfilter.vim')
1701
1702  var lines =<< trim END
1703    vim9script
1704    import {FilterFunc, FastFilter, FastFilterDirect} from './Xfilter.vim'
1705    def Test()
1706      var x: list<number> = FastFilter()
1707    enddef
1708    Test()
1709    def TestDirect()
1710      var x: list<number> = FastFilterDirect()
1711    enddef
1712    TestDirect()
1713  END
1714  CheckScriptSuccess(lines)
1715  delete('Xfilter.vim')
1716enddef
1717
1718def Test_vim9script_reload_delfunc()
1719  var first_lines =<< trim END
1720    vim9script
1721    def FuncYes(): string
1722      return 'yes'
1723    enddef
1724  END
1725  var withno_lines =<< trim END
1726    def FuncNo(): string
1727      return 'no'
1728    enddef
1729    def g:DoCheck(no_exists: bool)
1730      assert_equal('yes', FuncYes())
1731      assert_equal('no', FuncNo())
1732    enddef
1733  END
1734  var nono_lines =<< trim END
1735    def g:DoCheck(no_exists: bool)
1736      assert_equal('yes', FuncYes())
1737      assert_fails('FuncNo()', 'E117:', '', 2, 'DoCheck')
1738    enddef
1739  END
1740
1741  # FuncNo() is defined
1742  writefile(first_lines + withno_lines, 'Xreloaded.vim')
1743  source Xreloaded.vim
1744  g:DoCheck(true)
1745
1746  # FuncNo() is not redefined
1747  writefile(first_lines + nono_lines, 'Xreloaded.vim')
1748  source Xreloaded.vim
1749  g:DoCheck(false)
1750
1751  # FuncNo() is back
1752  writefile(first_lines + withno_lines, 'Xreloaded.vim')
1753  source Xreloaded.vim
1754  g:DoCheck(false)
1755
1756  delete('Xreloaded.vim')
1757enddef
1758
1759def Test_vim9script_reload_delvar()
1760  # write the script with a script-local variable
1761  var lines =<< trim END
1762    vim9script
1763    var name = 'string'
1764  END
1765  writefile(lines, 'XreloadVar.vim')
1766  source XreloadVar.vim
1767
1768  # now write the script using the same variable locally - works
1769  lines =<< trim END
1770    vim9script
1771    def Func()
1772      var name = 'string'
1773    enddef
1774  END
1775  writefile(lines, 'XreloadVar.vim')
1776  source XreloadVar.vim
1777
1778  delete('XreloadVar.vim')
1779enddef
1780
1781def Test_import_absolute()
1782  var import_lines = [
1783        'vim9script',
1784        'import exported from "' .. escape(getcwd(), '\') .. '/Xexport_abs.vim"',
1785        'def UseExported()',
1786        '  g:imported_abs = exported',
1787        '  exported = 8888',
1788        '  g:imported_after = exported',
1789        'enddef',
1790        'UseExported()',
1791        'g:import_disassembled = execute("disass UseExported")',
1792        ]
1793  writefile(import_lines, 'Ximport_abs.vim')
1794  writefile(s:export_script_lines, 'Xexport_abs.vim')
1795
1796  source Ximport_abs.vim
1797
1798  assert_equal(9876, g:imported_abs)
1799  assert_equal(8888, g:imported_after)
1800  assert_match('<SNR>\d\+_UseExported\_s*' ..
1801          'g:imported_abs = exported\_s*' ..
1802          '0 LOADSCRIPT exported-2 from .*Xexport_abs.vim\_s*' ..
1803          '1 STOREG g:imported_abs\_s*' ..
1804          'exported = 8888\_s*' ..
1805          '2 PUSHNR 8888\_s*' ..
1806          '3 STORESCRIPT exported-2 in .*Xexport_abs.vim\_s*' ..
1807          'g:imported_after = exported\_s*' ..
1808          '4 LOADSCRIPT exported-2 from .*Xexport_abs.vim\_s*' ..
1809          '5 STOREG g:imported_after',
1810        g:import_disassembled)
1811
1812  Undo_export_script_lines()
1813  unlet g:imported_abs
1814  unlet g:import_disassembled
1815
1816  delete('Ximport_abs.vim')
1817  delete('Xexport_abs.vim')
1818enddef
1819
1820def Test_import_rtp()
1821  var import_lines = [
1822        'vim9script',
1823        'import exported from "Xexport_rtp.vim"',
1824        'g:imported_rtp = exported',
1825        ]
1826  writefile(import_lines, 'Ximport_rtp.vim')
1827  mkdir('import')
1828  writefile(s:export_script_lines, 'import/Xexport_rtp.vim')
1829
1830  var save_rtp = &rtp
1831  &rtp = getcwd()
1832  source Ximport_rtp.vim
1833  &rtp = save_rtp
1834
1835  assert_equal(9876, g:imported_rtp)
1836
1837  Undo_export_script_lines()
1838  unlet g:imported_rtp
1839  delete('Ximport_rtp.vim')
1840  delete('import', 'rf')
1841enddef
1842
1843def Test_import_compile_error()
1844  var export_lines = [
1845        'vim9script',
1846        'export def ExpFunc(): string',
1847        '  return notDefined',
1848        'enddef',
1849        ]
1850  writefile(export_lines, 'Xexported.vim')
1851
1852  var import_lines = [
1853        'vim9script',
1854        'import ExpFunc from "./Xexported.vim"',
1855        'def ImpFunc()',
1856        '  echo ExpFunc()',
1857        'enddef',
1858        'defcompile',
1859        ]
1860  writefile(import_lines, 'Ximport.vim')
1861
1862  try
1863    source Ximport.vim
1864  catch /E1001/
1865    # Error should be fore the Xexported.vim file.
1866    assert_match('E1001: Variable not found: notDefined', v:exception)
1867    assert_match('function <SNR>\d\+_ImpFunc\[1\]..<SNR>\d\+_ExpFunc, line 1', v:throwpoint)
1868  endtry
1869
1870  delete('Xexported.vim')
1871  delete('Ximport.vim')
1872enddef
1873
1874def Test_func_redefine_error()
1875  var lines = [
1876        'vim9script',
1877        'def Func()',
1878        '  eval [][0]',
1879        'enddef',
1880        'Func()',
1881        ]
1882  writefile(lines, 'Xtestscript.vim')
1883
1884  for count in range(3)
1885    try
1886      source Xtestscript.vim
1887    catch /E684/
1888      # function name should contain <SNR> every time
1889      assert_match('E684: list index out of range', v:exception)
1890      assert_match('function <SNR>\d\+_Func, line 1', v:throwpoint)
1891    endtry
1892  endfor
1893
1894  delete('Xtestscript.vim')
1895enddef
1896
1897def Test_func_overrules_import_fails()
1898  var export_lines =<< trim END
1899      vim9script
1900      export def Func()
1901        echo 'imported'
1902      enddef
1903  END
1904  writefile(export_lines, 'XexportedFunc.vim')
1905
1906  var lines =<< trim END
1907    vim9script
1908    import Func from './XexportedFunc.vim'
1909    def Func()
1910      echo 'local to function'
1911    enddef
1912  END
1913  CheckScriptFailure(lines, 'E1073:')
1914
1915  lines =<< trim END
1916    vim9script
1917    import Func from './XexportedFunc.vim'
1918    def Outer()
1919      def Func()
1920        echo 'local to function'
1921      enddef
1922    enddef
1923    defcompile
1924  END
1925  CheckScriptFailure(lines, 'E1073:')
1926
1927  delete('XexportedFunc.vim')
1928enddef
1929
1930def Test_func_redefine_fails()
1931  var lines =<< trim END
1932    vim9script
1933    def Func()
1934      echo 'one'
1935    enddef
1936    def Func()
1937      echo 'two'
1938    enddef
1939  END
1940  CheckScriptFailure(lines, 'E1073:')
1941
1942  lines =<< trim END
1943    vim9script
1944    def Foo(): string
1945      return 'foo'
1946      enddef
1947    def Func()
1948      var  Foo = {-> 'lambda'}
1949    enddef
1950    defcompile
1951  END
1952  CheckScriptFailure(lines, 'E1073:')
1953enddef
1954
1955def Test_fixed_size_list()
1956  # will be allocated as one piece of memory, check that changes work
1957  var l = [1, 2, 3, 4]
1958  l->remove(0)
1959  l->add(5)
1960  l->insert(99, 1)
1961  assert_equal([2, 99, 3, 4, 5], l)
1962enddef
1963
1964def Test_no_insert_xit()
1965  CheckDefExecFailure(['a = 1'], 'E1100:')
1966  CheckDefExecFailure(['c = 1'], 'E1100:')
1967  CheckDefExecFailure(['i = 1'], 'E1100:')
1968  CheckDefExecFailure(['t = 1'], 'E1100:')
1969  CheckDefExecFailure(['x = 1'], 'E1100:')
1970
1971  CheckScriptFailure(['vim9script', 'a = 1'], 'E488:')
1972  CheckScriptFailure(['vim9script', 'a'], 'E1100:')
1973  CheckScriptFailure(['vim9script', 'c = 1'], 'E488:')
1974  CheckScriptFailure(['vim9script', 'c'], 'E1100:')
1975  CheckScriptFailure(['vim9script', 'i = 1'], 'E488:')
1976  CheckScriptFailure(['vim9script', 'i'], 'E1100:')
1977  CheckScriptFailure(['vim9script', 'o = 1'], 'E1100:')
1978  CheckScriptFailure(['vim9script', 'o'], 'E1100:')
1979  CheckScriptFailure(['vim9script', 't'], 'E1100:')
1980  CheckScriptFailure(['vim9script', 't = 1'], 'E1100:')
1981  CheckScriptFailure(['vim9script', 'x = 1'], 'E1100:')
1982enddef
1983
1984def IfElse(what: number): string
1985  var res = ''
1986  if what == 1
1987    res = "one"
1988  elseif what == 2
1989    res = "two"
1990  else
1991    res = "three"
1992  endif
1993  return res
1994enddef
1995
1996def Test_if_elseif_else()
1997  assert_equal('one', IfElse(1))
1998  assert_equal('two', IfElse(2))
1999  assert_equal('three', IfElse(3))
2000enddef
2001
2002def Test_if_elseif_else_fails()
2003  CheckDefFailure(['elseif true'], 'E582:')
2004  CheckDefFailure(['else'], 'E581:')
2005  CheckDefFailure(['endif'], 'E580:')
2006  CheckDefFailure(['if g:abool', 'elseif xxx'], 'E1001:')
2007  CheckDefFailure(['if true', 'echo 1'], 'E171:')
2008
2009  var lines =<< trim END
2010      var s = ''
2011      if s = ''
2012      endif
2013  END
2014  CheckDefFailure(lines, 'E488:')
2015
2016  lines =<< trim END
2017      var s = ''
2018      if s == ''
2019      elseif s = ''
2020      endif
2021  END
2022  CheckDefFailure(lines, 'E488:')
2023enddef
2024
2025let g:bool_true = v:true
2026let g:bool_false = v:false
2027
2028def Test_if_const_expr()
2029  var res = false
2030  if true ? true : false
2031    res = true
2032  endif
2033  assert_equal(true, res)
2034
2035  g:glob = 2
2036  if false
2037    execute('g:glob = 3')
2038  endif
2039  assert_equal(2, g:glob)
2040  if true
2041    execute('g:glob = 3')
2042  endif
2043  assert_equal(3, g:glob)
2044
2045  res = false
2046  if g:bool_true ? true : false
2047    res = true
2048  endif
2049  assert_equal(true, res)
2050
2051  res = false
2052  if true ? g:bool_true : false
2053    res = true
2054  endif
2055  assert_equal(true, res)
2056
2057  res = false
2058  if true ? true : g:bool_false
2059    res = true
2060  endif
2061  assert_equal(true, res)
2062
2063  res = false
2064  if true ? false : true
2065    res = true
2066  endif
2067  assert_equal(false, res)
2068
2069  res = false
2070  if false ? false : true
2071    res = true
2072  endif
2073  assert_equal(true, res)
2074
2075  res = false
2076  if false ? true : false
2077    res = true
2078  endif
2079  assert_equal(false, res)
2080
2081  res = false
2082  if has('xyz') ? true : false
2083    res = true
2084  endif
2085  assert_equal(false, res)
2086
2087  res = false
2088  if true && true
2089    res = true
2090  endif
2091  assert_equal(true, res)
2092
2093  res = false
2094  if true && false
2095    res = true
2096  endif
2097  assert_equal(false, res)
2098
2099  res = false
2100  if g:bool_true && false
2101    res = true
2102  endif
2103  assert_equal(false, res)
2104
2105  res = false
2106  if true && g:bool_false
2107    res = true
2108  endif
2109  assert_equal(false, res)
2110
2111  res = false
2112  if false && false
2113    res = true
2114  endif
2115  assert_equal(false, res)
2116
2117  res = false
2118  if true || false
2119    res = true
2120  endif
2121  assert_equal(true, res)
2122
2123  res = false
2124  if g:bool_true || false
2125    res = true
2126  endif
2127  assert_equal(true, res)
2128
2129  res = false
2130  if true || g:bool_false
2131    res = true
2132  endif
2133  assert_equal(true, res)
2134
2135  res = false
2136  if false || false
2137    res = true
2138  endif
2139  assert_equal(false, res)
2140
2141  # with constant "false" expression may be invalid so long as the syntax is OK
2142  if false | eval 0 | endif
2143  if false | eval burp + 234 | endif
2144  if false | echo burp 234 'asd' | endif
2145  if false
2146    burp
2147  endif
2148enddef
2149
2150def Test_if_const_expr_fails()
2151  CheckDefFailure(['if "aaa" == "bbb'], 'E114:')
2152  CheckDefFailure(["if 'aaa' == 'bbb"], 'E115:')
2153  CheckDefFailure(["if has('aaa'"], 'E110:')
2154  CheckDefFailure(["if has('aaa') ? true false"], 'E109:')
2155enddef
2156
2157def RunNested(i: number): number
2158  var x: number = 0
2159  if i % 2
2160    if 1
2161      # comment
2162    else
2163      # comment
2164    endif
2165    x += 1
2166  else
2167    x += 1000
2168  endif
2169  return x
2170enddef
2171
2172def Test_nested_if()
2173  assert_equal(1, RunNested(1))
2174  assert_equal(1000, RunNested(2))
2175enddef
2176
2177def Test_execute_cmd()
2178  # missing argument is ignored
2179  execute
2180  execute # comment
2181
2182  new
2183  setline(1, 'default')
2184  execute 'setline(1, "execute-string")'
2185  assert_equal('execute-string', getline(1))
2186
2187  execute "setline(1, 'execute-string')"
2188  assert_equal('execute-string', getline(1))
2189
2190  var cmd1 = 'setline(1,'
2191  var cmd2 = '"execute-var")'
2192  execute cmd1 cmd2 # comment
2193  assert_equal('execute-var', getline(1))
2194
2195  execute cmd1 cmd2 '|setline(1, "execute-var-string")'
2196  assert_equal('execute-var-string', getline(1))
2197
2198  var cmd_first = 'call '
2199  var cmd_last = 'setline(1, "execute-var-var")'
2200  execute cmd_first .. cmd_last
2201  assert_equal('execute-var-var', getline(1))
2202  bwipe!
2203
2204  var n = true
2205  execute 'echomsg' (n ? '"true"' : '"no"')
2206  assert_match('^true$', Screenline(&lines))
2207
2208  echomsg [1, 2, 3] {a: 1, b: 2}
2209  assert_match('^\[1, 2, 3\] {''a'': 1, ''b'': 2}$', Screenline(&lines))
2210
2211  CheckDefFailure(['execute xxx'], 'E1001:', 1)
2212  CheckDefExecFailure(['execute "tabnext " .. 8'], 'E475:', 1)
2213  CheckDefFailure(['execute "cmd"# comment'], 'E488:', 1)
2214enddef
2215
2216def Test_execute_cmd_vimscript()
2217  # only checks line continuation
2218  var lines =<< trim END
2219      vim9script
2220      execute 'g:someVar'
2221                .. ' = ' ..
2222                   '28'
2223      assert_equal(28, g:someVar)
2224      unlet g:someVar
2225  END
2226  CheckScriptSuccess(lines)
2227enddef
2228
2229def Test_echo_cmd()
2230  echo 'some' # comment
2231  echon 'thing'
2232  assert_match('^something$', Screenline(&lines))
2233
2234  echo "some" # comment
2235  echon "thing"
2236  assert_match('^something$', Screenline(&lines))
2237
2238  var str1 = 'some'
2239  var str2 = 'more'
2240  echo str1 str2
2241  assert_match('^some more$', Screenline(&lines))
2242
2243  CheckDefFailure(['echo "xxx"# comment'], 'E488:')
2244enddef
2245
2246def Test_echomsg_cmd()
2247  echomsg 'some' 'more' # comment
2248  assert_match('^some more$', Screenline(&lines))
2249  echo 'clear'
2250  :1messages
2251  assert_match('^some more$', Screenline(&lines))
2252
2253  CheckDefFailure(['echomsg "xxx"# comment'], 'E488:')
2254enddef
2255
2256def Test_echomsg_cmd_vimscript()
2257  # only checks line continuation
2258  var lines =<< trim END
2259      vim9script
2260      echomsg 'here'
2261                .. ' is ' ..
2262                   'a message'
2263      assert_match('^here is a message$', Screenline(&lines))
2264  END
2265  CheckScriptSuccess(lines)
2266enddef
2267
2268def Test_echoerr_cmd()
2269  try
2270    echoerr 'something' 'wrong' # comment
2271  catch
2272    assert_match('something wrong', v:exception)
2273  endtry
2274enddef
2275
2276def Test_echoerr_cmd_vimscript()
2277  # only checks line continuation
2278  var lines =<< trim END
2279      vim9script
2280      try
2281        echoerr 'this'
2282                .. ' is ' ..
2283                   'wrong'
2284      catch
2285        assert_match('this is wrong', v:exception)
2286      endtry
2287  END
2288  CheckScriptSuccess(lines)
2289enddef
2290
2291def Test_for_outside_of_function()
2292  var lines =<< trim END
2293    vim9script
2294    new
2295    for var in range(0, 3)
2296      append(line('$'), var)
2297    endfor
2298    assert_equal(['', '0', '1', '2', '3'], getline(1, '$'))
2299    bwipe!
2300
2301    var result = ''
2302    for i in [1, 2, 3]
2303      var loop = ' loop ' .. i
2304      result ..= loop
2305    endfor
2306    assert_equal(' loop 1 loop 2 loop 3', result)
2307  END
2308  writefile(lines, 'Xvim9for.vim')
2309  source Xvim9for.vim
2310  delete('Xvim9for.vim')
2311enddef
2312
2313def Test_for_loop()
2314  var lines =<< trim END
2315      var result = ''
2316      for cnt in range(7)
2317        if cnt == 4
2318          break
2319        endif
2320        if cnt == 2
2321          continue
2322        endif
2323        result ..= cnt .. '_'
2324      endfor
2325      assert_equal('0_1_3_', result)
2326
2327      var concat = ''
2328      for str in eval('["one", "two"]')
2329        concat ..= str
2330      endfor
2331      assert_equal('onetwo', concat)
2332
2333      var total = 0
2334      for nr in
2335          [1, 2, 3]
2336        total += nr
2337      endfor
2338      assert_equal(6, total)
2339
2340      total = 0
2341      for nr
2342        in [1, 2, 3]
2343        total += nr
2344      endfor
2345      assert_equal(6, total)
2346
2347      total = 0
2348      for nr
2349        in
2350        [1, 2, 3]
2351        total += nr
2352      endfor
2353      assert_equal(6, total)
2354
2355      # with type
2356      total = 0
2357      for n: number in [1, 2, 3]
2358        total += n
2359      endfor
2360      assert_equal(6, total)
2361
2362      var chars = ''
2363      for s: string in 'foobar'
2364        chars ..= s
2365      endfor
2366      assert_equal('foobar', chars)
2367
2368      # unpack with type
2369      var res = ''
2370      for [n: number, s: string] in [[1, 'a'], [2, 'b']]
2371        res ..= n .. s
2372      endfor
2373      assert_equal('1a2b', res)
2374
2375      # loop over string
2376      res = ''
2377      for c in 'aéc̀d'
2378        res ..= c .. '-'
2379      endfor
2380      assert_equal('a-é-c̀-d-', res)
2381
2382      res = ''
2383      for c in ''
2384        res ..= c .. '-'
2385      endfor
2386      assert_equal('', res)
2387
2388      res = ''
2389      for c in test_null_string()
2390        res ..= c .. '-'
2391      endfor
2392      assert_equal('', res)
2393
2394      var foo: list<dict<any>> = [
2395              {a: 'Cat'}
2396            ]
2397      for dd in foo
2398        dd.counter = 12
2399      endfor
2400      assert_equal([{a: 'Cat', counter: 12}], foo)
2401  END
2402  CheckDefAndScriptSuccess(lines)
2403enddef
2404
2405def Test_for_loop_fails()
2406  CheckDefFailure(['for '], 'E1097:')
2407  CheckDefFailure(['for x'], 'E1097:')
2408  CheckDefFailure(['for x in'], 'E1097:')
2409  CheckDefFailure(['for # in range(5)'], 'E690:')
2410  CheckDefFailure(['for i In range(5)'], 'E690:')
2411  CheckDefFailure(['var x = 5', 'for x in range(5)'], 'E1017:')
2412  CheckScriptFailure(['def Func(arg: any)', 'for arg in range(5)', 'enddef', 'defcompile'], 'E1006:')
2413  delfunc! g:Func
2414  CheckDefFailure(['for i in xxx'], 'E1001:')
2415  CheckDefFailure(['endfor'], 'E588:')
2416  CheckDefFailure(['for i in range(3)', 'echo 3'], 'E170:')
2417
2418  # wrong type detected at compile time
2419  CheckDefFailure(['for i in {a: 1}', 'echo 3', 'endfor'], 'E1177: For loop on dict not supported')
2420
2421  # wrong type detected at runtime
2422  g:adict = {a: 1}
2423  CheckDefExecFailure(['for i in g:adict', 'echo 3', 'endfor'], 'E1177: For loop on dict not supported')
2424  unlet g:adict
2425
2426  var lines =<< trim END
2427      var d: list<dict<any>> = [{a: 0}]
2428      for e in d
2429        e = {a: 0, b: ''}
2430      endfor
2431  END
2432  CheckDefAndScriptFailure2(lines, 'E1018:', 'E46:', 3)
2433
2434  lines =<< trim END
2435      for nr: number in ['foo']
2436      endfor
2437  END
2438  CheckDefAndScriptFailure(lines, 'E1012: Type mismatch; expected number but got string', 1)
2439enddef
2440
2441def Test_for_loop_script_var()
2442  # cannot use s:var in a :def function
2443  CheckDefFailure(['for s:var in range(3)', 'echo 3'], 'E1101:')
2444
2445  # can use s:var in Vim9 script, with or without s:
2446  var lines =<< trim END
2447    vim9script
2448    var total = 0
2449    for s:var in [1, 2, 3]
2450      total += s:var
2451    endfor
2452    assert_equal(6, total)
2453
2454    total = 0
2455    for var in [1, 2, 3]
2456      total += var
2457    endfor
2458    assert_equal(6, total)
2459  END
2460enddef
2461
2462def Test_for_loop_unpack()
2463  var lines =<< trim END
2464      var result = []
2465      for [v1, v2] in [[1, 2], [3, 4]]
2466        result->add(v1)
2467        result->add(v2)
2468      endfor
2469      assert_equal([1, 2, 3, 4], result)
2470
2471      result = []
2472      for [v1, v2; v3] in [[1, 2], [3, 4, 5, 6]]
2473        result->add(v1)
2474        result->add(v2)
2475        result->add(v3)
2476      endfor
2477      assert_equal([1, 2, [], 3, 4, [5, 6]], result)
2478
2479      result = []
2480      for [&ts, &sw] in [[1, 2], [3, 4]]
2481        result->add(&ts)
2482        result->add(&sw)
2483      endfor
2484      assert_equal([1, 2, 3, 4], result)
2485
2486      var slist: list<string>
2487      for [$LOOPVAR, @r, v:errmsg] in [['a', 'b', 'c'], ['d', 'e', 'f']]
2488        slist->add($LOOPVAR)
2489        slist->add(@r)
2490        slist->add(v:errmsg)
2491      endfor
2492      assert_equal(['a', 'b', 'c', 'd', 'e', 'f'], slist)
2493
2494      slist = []
2495      for [g:globalvar, b:bufvar, w:winvar, t:tabvar] in [['global', 'buf', 'win', 'tab'], ['1', '2', '3', '4']]
2496        slist->add(g:globalvar)
2497        slist->add(b:bufvar)
2498        slist->add(w:winvar)
2499        slist->add(t:tabvar)
2500      endfor
2501      assert_equal(['global', 'buf', 'win', 'tab', '1', '2', '3', '4'], slist)
2502      unlet! g:globalvar b:bufvar w:winvar t:tabvar
2503  END
2504  CheckDefAndScriptSuccess(lines)
2505
2506  lines =<< trim END
2507      for [v1, v2] in [[1, 2, 3], [3, 4]]
2508        echo v1 v2
2509      endfor
2510  END
2511  CheckDefExecFailure(lines, 'E710:', 1)
2512
2513  lines =<< trim END
2514      for [v1, v2] in [[1], [3, 4]]
2515        echo v1 v2
2516      endfor
2517  END
2518  CheckDefExecFailure(lines, 'E711:', 1)
2519
2520  lines =<< trim END
2521      for [v1, v1] in [[1, 2], [3, 4]]
2522        echo v1
2523      endfor
2524  END
2525  CheckDefExecFailure(lines, 'E1017:', 1)
2526enddef
2527
2528def Test_for_loop_with_try_continue()
2529  var lines =<< trim END
2530      var looped = 0
2531      var cleanup = 0
2532      for i in range(3)
2533        looped += 1
2534        try
2535          eval [][0]
2536        catch
2537          continue
2538        finally
2539          cleanup += 1
2540        endtry
2541      endfor
2542      assert_equal(3, looped)
2543      assert_equal(3, cleanup)
2544  END
2545  CheckDefAndScriptSuccess(lines)
2546enddef
2547
2548def Test_while_loop()
2549  var result = ''
2550  var cnt = 0
2551  while cnt < 555
2552    if cnt == 3
2553      break
2554    endif
2555    cnt += 1
2556    if cnt == 2
2557      continue
2558    endif
2559    result ..= cnt .. '_'
2560  endwhile
2561  assert_equal('1_3_', result)
2562
2563  var s = ''
2564  while s == 'x' # {comment}
2565  endwhile
2566enddef
2567
2568def Test_while_loop_fails()
2569  CheckDefFailure(['while xxx'], 'E1001:')
2570  CheckDefFailure(['endwhile'], 'E588:')
2571  CheckDefFailure(['continue'], 'E586:')
2572  CheckDefFailure(['if true', 'continue'], 'E586:')
2573  CheckDefFailure(['break'], 'E587:')
2574  CheckDefFailure(['if true', 'break'], 'E587:')
2575  CheckDefFailure(['while 1', 'echo 3'], 'E170:')
2576
2577  var lines =<< trim END
2578      var s = ''
2579      while s = ''
2580      endwhile
2581  END
2582  CheckDefFailure(lines, 'E488:')
2583enddef
2584
2585def Test_interrupt_loop()
2586  var caught = false
2587  var x = 0
2588  try
2589    while 1
2590      x += 1
2591      if x == 100
2592        feedkeys("\<C-C>", 'Lt')
2593      endif
2594    endwhile
2595  catch
2596    caught = true
2597    assert_equal(100, x)
2598  endtry
2599  assert_true(caught, 'should have caught an exception')
2600  # consume the CTRL-C
2601  getchar(0)
2602enddef
2603
2604def Test_automatic_line_continuation()
2605  var mylist = [
2606      'one',
2607      'two',
2608      'three',
2609      ] # comment
2610  assert_equal(['one', 'two', 'three'], mylist)
2611
2612  var mydict = {
2613      ['one']: 1,
2614      ['two']: 2,
2615      ['three']:
2616          3,
2617      } # comment
2618  assert_equal({one: 1, two: 2, three: 3}, mydict)
2619  mydict = {
2620      one: 1,  # comment
2621      two:     # comment
2622           2,  # comment
2623      three: 3 # comment
2624      }
2625  assert_equal({one: 1, two: 2, three: 3}, mydict)
2626  mydict = {
2627      one: 1,
2628      two:
2629           2,
2630      three: 3
2631      }
2632  assert_equal({one: 1, two: 2, three: 3}, mydict)
2633
2634  assert_equal(
2635        ['one', 'two', 'three'],
2636        split('one two three')
2637        )
2638enddef
2639
2640def Test_vim9_comment()
2641  CheckScriptSuccess([
2642      'vim9script',
2643      '# something',
2644      '#something',
2645      '#{something',
2646      ])
2647
2648  split Xfile
2649  CheckScriptSuccess([
2650      'vim9script',
2651      'edit #something',
2652      ])
2653  CheckScriptSuccess([
2654      'vim9script',
2655      'edit #{something',
2656      ])
2657  close
2658
2659  CheckScriptFailure([
2660      'vim9script',
2661      ':# something',
2662      ], 'E488:')
2663  CheckScriptFailure([
2664      '# something',
2665      ], 'E488:')
2666  CheckScriptFailure([
2667      ':# something',
2668      ], 'E488:')
2669
2670  { # block start
2671  } # block end
2672  CheckDefFailure([
2673      '{# comment',
2674      ], 'E488:')
2675  CheckDefFailure([
2676      '{',
2677      '}# comment',
2678      ], 'E488:')
2679
2680  echo "yes" # comment
2681  CheckDefFailure([
2682      'echo "yes"# comment',
2683      ], 'E488:')
2684  CheckScriptSuccess([
2685      'vim9script',
2686      'echo "yes" # something',
2687      ])
2688  CheckScriptFailure([
2689      'vim9script',
2690      'echo "yes"# something',
2691      ], 'E121:')
2692  CheckScriptFailure([
2693      'vim9script',
2694      'echo# something',
2695      ], 'E1144:')
2696  CheckScriptFailure([
2697      'echo "yes" # something',
2698      ], 'E121:')
2699
2700  exe "echo" # comment
2701  CheckDefFailure([
2702      'exe "echo"# comment',
2703      ], 'E488:')
2704  CheckScriptSuccess([
2705      'vim9script',
2706      'exe "echo" # something',
2707      ])
2708  CheckScriptFailure([
2709      'vim9script',
2710      'exe "echo"# something',
2711      ], 'E121:')
2712  CheckScriptFailure([
2713      'vim9script',
2714      'exe# something',
2715      ], 'E1144:')
2716  CheckScriptFailure([
2717      'exe "echo" # something',
2718      ], 'E121:')
2719
2720  CheckDefFailure([
2721      'try# comment',
2722      '  echo "yes"',
2723      'catch',
2724      'endtry',
2725      ], 'E1144:')
2726  CheckScriptFailure([
2727      'vim9script',
2728      'try# comment',
2729      'echo "yes"',
2730      ], 'E1144:')
2731  CheckDefFailure([
2732      'try',
2733      '  throw#comment',
2734      'catch',
2735      'endtry',
2736      ], 'E1144:')
2737  CheckDefFailure([
2738      'try',
2739      '  throw "yes"#comment',
2740      'catch',
2741      'endtry',
2742      ], 'E488:')
2743  CheckDefFailure([
2744      'try',
2745      '  echo "yes"',
2746      'catch# comment',
2747      'endtry',
2748      ], 'E1144:')
2749  CheckScriptFailure([
2750      'vim9script',
2751      'try',
2752      '  echo "yes"',
2753      'catch# comment',
2754      'endtry',
2755      ], 'E1144:')
2756  CheckDefFailure([
2757      'try',
2758      '  echo "yes"',
2759      'catch /pat/# comment',
2760      'endtry',
2761      ], 'E488:')
2762  CheckDefFailure([
2763      'try',
2764      'echo "yes"',
2765      'catch',
2766      'endtry# comment',
2767      ], 'E1144:')
2768  CheckScriptFailure([
2769      'vim9script',
2770      'try',
2771      '  echo "yes"',
2772      'catch',
2773      'endtry# comment',
2774      ], 'E1144:')
2775
2776  CheckScriptSuccess([
2777      'vim9script',
2778      'hi # comment',
2779      ])
2780  CheckScriptFailure([
2781      'vim9script',
2782      'hi# comment',
2783      ], 'E1144:')
2784  CheckScriptSuccess([
2785      'vim9script',
2786      'hi Search # comment',
2787      ])
2788  CheckScriptFailure([
2789      'vim9script',
2790      'hi Search# comment',
2791      ], 'E416:')
2792  CheckScriptSuccess([
2793      'vim9script',
2794      'hi link This Search # comment',
2795      ])
2796  CheckScriptFailure([
2797      'vim9script',
2798      'hi link This That# comment',
2799      ], 'E413:')
2800  CheckScriptSuccess([
2801      'vim9script',
2802      'hi clear This # comment',
2803      'hi clear # comment',
2804      ])
2805  # not tested, because it doesn't give an error but a warning:
2806  # hi clear This# comment',
2807  CheckScriptFailure([
2808      'vim9script',
2809      'hi clear# comment',
2810      ], 'E416:')
2811
2812  CheckScriptSuccess([
2813      'vim9script',
2814      'hi Group term=bold',
2815      'match Group /todo/ # comment',
2816      ])
2817  CheckScriptFailure([
2818      'vim9script',
2819      'hi Group term=bold',
2820      'match Group /todo/# comment',
2821      ], 'E488:')
2822  CheckScriptSuccess([
2823      'vim9script',
2824      'match # comment',
2825      ])
2826  CheckScriptFailure([
2827      'vim9script',
2828      'match# comment',
2829      ], 'E1144:')
2830  CheckScriptSuccess([
2831      'vim9script',
2832      'match none # comment',
2833      ])
2834  CheckScriptFailure([
2835      'vim9script',
2836      'match none# comment',
2837      ], 'E475:')
2838
2839  CheckScriptSuccess([
2840      'vim9script',
2841      'menutrans clear # comment',
2842      ])
2843  CheckScriptFailure([
2844      'vim9script',
2845      'menutrans clear# comment text',
2846      ], 'E474:')
2847
2848  CheckScriptSuccess([
2849      'vim9script',
2850      'syntax clear # comment',
2851      ])
2852  CheckScriptFailure([
2853      'vim9script',
2854      'syntax clear# comment text',
2855      ], 'E28:')
2856  CheckScriptSuccess([
2857      'vim9script',
2858      'syntax keyword Word some',
2859      'syntax clear Word # comment',
2860      ])
2861  CheckScriptFailure([
2862      'vim9script',
2863      'syntax keyword Word some',
2864      'syntax clear Word# comment text',
2865      ], 'E28:')
2866
2867  CheckScriptSuccess([
2868      'vim9script',
2869      'syntax list # comment',
2870      ])
2871  CheckScriptFailure([
2872      'vim9script',
2873      'syntax list# comment text',
2874      ], 'E28:')
2875
2876  CheckScriptSuccess([
2877      'vim9script',
2878      'syntax match Word /pat/ oneline # comment',
2879      ])
2880  CheckScriptFailure([
2881      'vim9script',
2882      'syntax match Word /pat/ oneline# comment',
2883      ], 'E475:')
2884
2885  CheckScriptSuccess([
2886      'vim9script',
2887      'syntax keyword Word word # comm[ent',
2888      ])
2889  CheckScriptFailure([
2890      'vim9script',
2891      'syntax keyword Word word# comm[ent',
2892      ], 'E789:')
2893
2894  CheckScriptSuccess([
2895      'vim9script',
2896      'syntax match Word /pat/ # comment',
2897      ])
2898  CheckScriptFailure([
2899      'vim9script',
2900      'syntax match Word /pat/# comment',
2901      ], 'E402:')
2902
2903  CheckScriptSuccess([
2904      'vim9script',
2905      'syntax match Word /pat/ contains=Something # comment',
2906      ])
2907  CheckScriptFailure([
2908      'vim9script',
2909      'syntax match Word /pat/ contains=Something# comment',
2910      ], 'E475:')
2911  CheckScriptFailure([
2912      'vim9script',
2913      'syntax match Word /pat/ contains= # comment',
2914      ], 'E406:')
2915  CheckScriptFailure([
2916      'vim9script',
2917      'syntax match Word /pat/ contains=# comment',
2918      ], 'E475:')
2919
2920  CheckScriptSuccess([
2921      'vim9script',
2922      'syntax region Word start=/pat/ end=/pat/ # comment',
2923      ])
2924  CheckScriptFailure([
2925      'vim9script',
2926      'syntax region Word start=/pat/ end=/pat/# comment',
2927      ], 'E402:')
2928
2929  CheckScriptSuccess([
2930      'vim9script',
2931      'syntax sync # comment',
2932      ])
2933  CheckScriptFailure([
2934      'vim9script',
2935      'syntax sync# comment',
2936      ], 'E404:')
2937  CheckScriptSuccess([
2938      'vim9script',
2939      'syntax sync ccomment # comment',
2940      ])
2941  CheckScriptFailure([
2942      'vim9script',
2943      'syntax sync ccomment# comment',
2944      ], 'E404:')
2945
2946  CheckScriptSuccess([
2947      'vim9script',
2948      'syntax cluster Some contains=Word # comment',
2949      ])
2950  CheckScriptFailure([
2951      'vim9script',
2952      'syntax cluster Some contains=Word# comment',
2953      ], 'E475:')
2954
2955  CheckScriptSuccess([
2956      'vim9script',
2957      'command Echo echo # comment',
2958      'command Echo # comment',
2959      'delcommand Echo',
2960      ])
2961  CheckScriptFailure([
2962      'vim9script',
2963      'command Echo echo# comment',
2964      'Echo',
2965      ], 'E1144:')
2966  delcommand Echo
2967
2968  var curdir = getcwd()
2969  CheckScriptSuccess([
2970      'command Echo cd " comment',
2971      'Echo',
2972      'delcommand Echo',
2973      ])
2974  CheckScriptSuccess([
2975      'vim9script',
2976      'command Echo cd # comment',
2977      'Echo',
2978      'delcommand Echo',
2979      ])
2980  CheckScriptFailure([
2981      'vim9script',
2982      'command Echo cd " comment',
2983      'Echo',
2984      ], 'E344:')
2985  delcommand Echo
2986  chdir(curdir)
2987
2988  CheckScriptFailure([
2989      'vim9script',
2990      'command Echo# comment',
2991      ], 'E182:')
2992  CheckScriptFailure([
2993      'vim9script',
2994      'command Echo echo',
2995      'command Echo# comment',
2996      ], 'E182:')
2997  delcommand Echo
2998
2999  CheckScriptSuccess([
3000      'vim9script',
3001      'function # comment',
3002      ])
3003  CheckScriptFailure([
3004      'vim9script',
3005      'function " comment',
3006      ], 'E129:')
3007  CheckScriptFailure([
3008      'vim9script',
3009      'function# comment',
3010      ], 'E1144:')
3011  CheckScriptSuccess([
3012      'vim9script',
3013      'function CheckScriptSuccess # comment',
3014      ])
3015  CheckScriptFailure([
3016      'vim9script',
3017      'function CheckScriptSuccess# comment',
3018      ], 'E488:')
3019
3020  CheckScriptSuccess([
3021      'vim9script',
3022      'func g:DeleteMeA()',
3023      'endfunc',
3024      'delfunction g:DeleteMeA # comment',
3025      ])
3026  CheckScriptFailure([
3027      'vim9script',
3028      'func g:DeleteMeB()',
3029      'endfunc',
3030      'delfunction g:DeleteMeB# comment',
3031      ], 'E488:')
3032
3033  CheckScriptSuccess([
3034      'vim9script',
3035      'call execute("ls") # comment',
3036      ])
3037  CheckScriptFailure([
3038      'vim9script',
3039      'call execute("ls")# comment',
3040      ], 'E488:')
3041
3042  CheckScriptFailure([
3043      'def Test() " comment',
3044      'enddef',
3045      ], 'E488:')
3046  CheckScriptFailure([
3047      'vim9script',
3048      'def Test() " comment',
3049      'enddef',
3050      ], 'E488:')
3051
3052  CheckScriptSuccess([
3053      'func Test() " comment',
3054      'endfunc',
3055      'delfunc Test',
3056      ])
3057  CheckScriptSuccess([
3058      'vim9script',
3059      'func Test() " comment',
3060      'endfunc',
3061      ])
3062
3063  CheckScriptSuccess([
3064      'def Test() # comment',
3065      'enddef',
3066      ])
3067  CheckScriptFailure([
3068      'func Test() # comment',
3069      'endfunc',
3070      ], 'E488:')
3071enddef
3072
3073def Test_vim9_comment_gui()
3074  CheckCanRunGui
3075
3076  CheckScriptFailure([
3077      'vim9script',
3078      'gui#comment'
3079      ], 'E1144:')
3080  CheckScriptFailure([
3081      'vim9script',
3082      'gui -f#comment'
3083      ], 'E499:')
3084enddef
3085
3086def Test_vim9_comment_not_compiled()
3087  au TabEnter *.vim g:entered = 1
3088  au TabEnter *.x g:entered = 2
3089
3090  edit test.vim
3091  doautocmd TabEnter #comment
3092  assert_equal(1, g:entered)
3093
3094  doautocmd TabEnter f.x
3095  assert_equal(2, g:entered)
3096
3097  g:entered = 0
3098  doautocmd TabEnter f.x #comment
3099  assert_equal(2, g:entered)
3100
3101  assert_fails('doautocmd Syntax#comment', 'E216:')
3102
3103  au! TabEnter
3104  unlet g:entered
3105
3106  CheckScriptSuccess([
3107      'vim9script',
3108      'g:var = 123',
3109      'b:var = 456',
3110      'w:var = 777',
3111      't:var = 888',
3112      'unlet g:var w:var # something',
3113      ])
3114
3115  CheckScriptFailure([
3116      'vim9script',
3117      'let var = 123',
3118      ], 'E1126: Cannot use :let in Vim9 script')
3119
3120  CheckScriptFailure([
3121      'vim9script',
3122      'var g:var = 123',
3123      ], 'E1016: Cannot declare a global variable:')
3124
3125  CheckScriptFailure([
3126      'vim9script',
3127      'var b:var = 123',
3128      ], 'E1016: Cannot declare a buffer variable:')
3129
3130  CheckScriptFailure([
3131      'vim9script',
3132      'var w:var = 123',
3133      ], 'E1016: Cannot declare a window variable:')
3134
3135  CheckScriptFailure([
3136      'vim9script',
3137      'var t:var = 123',
3138      ], 'E1016: Cannot declare a tab variable:')
3139
3140  CheckScriptFailure([
3141      'vim9script',
3142      'var v:version = 123',
3143      ], 'E1016: Cannot declare a v: variable:')
3144
3145  CheckScriptFailure([
3146      'vim9script',
3147      'var $VARIABLE = "text"',
3148      ], 'E1016: Cannot declare an environment variable:')
3149
3150  CheckScriptFailure([
3151      'vim9script',
3152      'g:var = 123',
3153      'unlet g:var# comment1',
3154      ], 'E108:')
3155
3156  CheckScriptFailure([
3157      'let g:var = 123',
3158      'unlet g:var # something',
3159      ], 'E488:')
3160
3161  CheckScriptSuccess([
3162      'vim9script',
3163      'if 1 # comment2',
3164      '  echo "yes"',
3165      'elseif 2 #comment',
3166      '  echo "no"',
3167      'endif',
3168      ])
3169
3170  CheckScriptFailure([
3171      'vim9script',
3172      'if 1# comment3',
3173      '  echo "yes"',
3174      'endif',
3175      ], 'E15:')
3176
3177  CheckScriptFailure([
3178      'vim9script',
3179      'if 0 # comment4',
3180      '  echo "yes"',
3181      'elseif 2#comment',
3182      '  echo "no"',
3183      'endif',
3184      ], 'E15:')
3185
3186  CheckScriptSuccess([
3187      'vim9script',
3188      'var v = 1 # comment5',
3189      ])
3190
3191  CheckScriptFailure([
3192      'vim9script',
3193      'var v = 1# comment6',
3194      ], 'E15:')
3195
3196  CheckScriptSuccess([
3197      'vim9script',
3198      'new'
3199      'setline(1, ["# define pat", "last"])',
3200      ':$',
3201      'dsearch /pat/ #comment',
3202      'bwipe!',
3203      ])
3204
3205  CheckScriptFailure([
3206      'vim9script',
3207      'new'
3208      'setline(1, ["# define pat", "last"])',
3209      ':$',
3210      'dsearch /pat/#comment',
3211      'bwipe!',
3212      ], 'E488:')
3213
3214  CheckScriptFailure([
3215      'vim9script',
3216      'func! SomeFunc()',
3217      ], 'E477:')
3218enddef
3219
3220def Test_finish()
3221  var lines =<< trim END
3222    vim9script
3223    g:res = 'one'
3224    if v:false | finish | endif
3225    g:res = 'two'
3226    finish
3227    g:res = 'three'
3228  END
3229  writefile(lines, 'Xfinished')
3230  source Xfinished
3231  assert_equal('two', g:res)
3232
3233  unlet g:res
3234  delete('Xfinished')
3235enddef
3236
3237def Test_forward_declaration()
3238  var lines =<< trim END
3239    vim9script
3240    def GetValue(): string
3241      return theVal
3242    enddef
3243    var theVal = 'something'
3244    g:initVal = GetValue()
3245    theVal = 'else'
3246    g:laterVal = GetValue()
3247  END
3248  writefile(lines, 'Xforward')
3249  source Xforward
3250  assert_equal('something', g:initVal)
3251  assert_equal('else', g:laterVal)
3252
3253  unlet g:initVal
3254  unlet g:laterVal
3255  delete('Xforward')
3256enddef
3257
3258def Test_source_vim9_from_legacy()
3259  var vim9_lines =<< trim END
3260    vim9script
3261    var local = 'local'
3262    g:global = 'global'
3263    export var exported = 'exported'
3264    export def GetText(): string
3265       return 'text'
3266    enddef
3267  END
3268  writefile(vim9_lines, 'Xvim9_script.vim')
3269
3270  var legacy_lines =<< trim END
3271    source Xvim9_script.vim
3272
3273    call assert_false(exists('local'))
3274    call assert_false(exists('exported'))
3275    call assert_false(exists('s:exported'))
3276    call assert_equal('global', global)
3277    call assert_equal('global', g:global)
3278
3279    " imported variable becomes script-local
3280    import exported from './Xvim9_script.vim'
3281    call assert_equal('exported', s:exported)
3282    call assert_false(exists('exported'))
3283
3284    " imported function becomes script-local
3285    import GetText from './Xvim9_script.vim'
3286    call assert_equal('text', s:GetText())
3287    call assert_false(exists('*GetText'))
3288  END
3289  writefile(legacy_lines, 'Xlegacy_script.vim')
3290
3291  source Xlegacy_script.vim
3292  assert_equal('global', g:global)
3293  unlet g:global
3294
3295  delete('Xlegacy_script.vim')
3296  delete('Xvim9_script.vim')
3297enddef
3298
3299def Test_declare_script_in_func()
3300  var lines =<< trim END
3301      vim9script
3302      func Declare()
3303        let s:local = 123
3304      endfunc
3305      Declare()
3306      assert_equal(123, local)
3307
3308      var error: string
3309      try
3310        local = 'asdf'
3311      catch
3312        error = v:exception
3313      endtry
3314      assert_match('E1012: Type mismatch; expected number but got string', error)
3315
3316      lockvar local
3317      try
3318        local = 999
3319      catch
3320        error = v:exception
3321      endtry
3322      assert_match('E741: Value is locked: local', error)
3323  END
3324  CheckScriptSuccess(lines)
3325enddef
3326
3327
3328func Test_vim9script_not_global()
3329  " check that items defined in Vim9 script are script-local, not global
3330  let vim9lines =<< trim END
3331    vim9script
3332    var name = 'local'
3333    func TheFunc()
3334      echo 'local'
3335    endfunc
3336    def DefFunc()
3337      echo 'local'
3338    enddef
3339  END
3340  call writefile(vim9lines, 'Xvim9script.vim')
3341  source Xvim9script.vim
3342  try
3343    echo g:var
3344    assert_report('did not fail')
3345  catch /E121:/
3346    " caught
3347  endtry
3348  try
3349    call TheFunc()
3350    assert_report('did not fail')
3351  catch /E117:/
3352    " caught
3353  endtry
3354  try
3355    call DefFunc()
3356    assert_report('did not fail')
3357  catch /E117:/
3358    " caught
3359  endtry
3360
3361  call delete('Xvim9script.vim')
3362endfunc
3363
3364def Test_vim9_copen()
3365  # this was giving an error for setting w:quickfix_title
3366  copen
3367  quit
3368enddef
3369
3370" test using an auto-loaded function and variable
3371def Test_vim9_autoload()
3372  var lines =<< trim END
3373     vim9script
3374     def some#gettest(): string
3375       return 'test'
3376     enddef
3377     g:some#name = 'name'
3378     g:some#dict = {key: 'value'}
3379
3380     def some#varargs(a1: string, ...l: list<string>): string
3381       return a1 .. l[0] .. l[1]
3382     enddef
3383  END
3384
3385  mkdir('Xdir/autoload', 'p')
3386  writefile(lines, 'Xdir/autoload/some.vim')
3387  var save_rtp = &rtp
3388  exe 'set rtp^=' .. getcwd() .. '/Xdir'
3389
3390  assert_equal('test', g:some#gettest())
3391  assert_equal('name', g:some#name)
3392  assert_equal('value', g:some#dict.key)
3393  g:some#other = 'other'
3394  assert_equal('other', g:some#other)
3395
3396  assert_equal('abc', some#varargs('a', 'b', 'c'))
3397
3398  # upper case script name works
3399  lines =<< trim END
3400     vim9script
3401     def Other#getOther(): string
3402       return 'other'
3403     enddef
3404  END
3405  writefile(lines, 'Xdir/autoload/Other.vim')
3406  assert_equal('other', g:Other#getOther())
3407
3408  delete('Xdir', 'rf')
3409  &rtp = save_rtp
3410enddef
3411
3412" test using a vim9script that is auto-loaded from an autocmd
3413def Test_vim9_aucmd_autoload()
3414  var lines =<< trim END
3415     vim9script
3416     def foo#test()
3417         echomsg getreg('"')
3418     enddef
3419  END
3420
3421  mkdir('Xdir/autoload', 'p')
3422  writefile(lines, 'Xdir/autoload/foo.vim')
3423  var save_rtp = &rtp
3424  exe 'set rtp^=' .. getcwd() .. '/Xdir'
3425  augroup test
3426    autocmd TextYankPost * call foo#test()
3427  augroup END
3428
3429  normal Y
3430
3431  augroup test
3432    autocmd!
3433  augroup END
3434  delete('Xdir', 'rf')
3435  &rtp = save_rtp
3436enddef
3437
3438" This was causing a crash because suppress_errthrow wasn't reset.
3439def Test_vim9_autoload_error()
3440  var lines =<< trim END
3441      vim9script
3442      def crash#func()
3443          try
3444              for x in List()
3445              endfor
3446          catch
3447          endtry
3448          g:ok = true
3449      enddef
3450      fu List()
3451          invalid
3452      endfu
3453      try
3454          alsoinvalid
3455      catch /wontmatch/
3456      endtry
3457  END
3458  call mkdir('Xruntime/autoload', 'p')
3459  call writefile(lines, 'Xruntime/autoload/crash.vim')
3460
3461  # run in a separate Vim to avoid the side effects of assert_fails()
3462  lines =<< trim END
3463    exe 'set rtp^=' .. getcwd() .. '/Xruntime'
3464    call crash#func()
3465    call writefile(['ok'], 'Xdidit')
3466    qall!
3467  END
3468  writefile(lines, 'Xscript')
3469  RunVim([], [], '-S Xscript')
3470  assert_equal(['ok'], readfile('Xdidit'))
3471
3472  delete('Xdidit')
3473  delete('Xscript')
3474  delete('Xruntime', 'rf')
3475
3476  lines =<< trim END
3477    vim9script
3478    var foo#bar = 'asdf'
3479  END
3480  CheckScriptFailure(lines, 'E461: Illegal variable name: foo#bar', 2)
3481enddef
3482
3483def Test_script_var_in_autocmd()
3484  # using a script variable from an autocommand, defined in a :def function in a
3485  # legacy Vim script, cannot check the variable type.
3486  var lines =<< trim END
3487    let s:counter = 1
3488    def s:Func()
3489      au! CursorHold
3490      au CursorHold * s:counter += 1
3491    enddef
3492    call s:Func()
3493    doau CursorHold
3494    call assert_equal(2, s:counter)
3495    au! CursorHold
3496  END
3497  CheckScriptSuccess(lines)
3498enddef
3499
3500def Test_cmdline_win()
3501  # if the Vim syntax highlighting uses Vim9 constructs they can be used from
3502  # the command line window.
3503  mkdir('rtp/syntax', 'p')
3504  var export_lines =<< trim END
3505    vim9script
3506    export var That = 'yes'
3507  END
3508  writefile(export_lines, 'rtp/syntax/Xexport.vim')
3509  var import_lines =<< trim END
3510    vim9script
3511    import That from './Xexport.vim'
3512  END
3513  writefile(import_lines, 'rtp/syntax/vim.vim')
3514  var save_rtp = &rtp
3515  &rtp = getcwd() .. '/rtp' .. ',' .. &rtp
3516  syntax on
3517  augroup CmdWin
3518    autocmd CmdwinEnter * g:got_there = 'yes'
3519  augroup END
3520  # this will open and also close the cmdline window
3521  feedkeys('q:', 'xt')
3522  assert_equal('yes', g:got_there)
3523
3524  augroup CmdWin
3525    au!
3526  augroup END
3527  &rtp = save_rtp
3528  delete('rtp', 'rf')
3529enddef
3530
3531def Test_invalid_sid()
3532  assert_fails('func <SNR>1234_func', 'E123:')
3533
3534  if RunVim([], ['wq! Xdidit'], '+"func <SNR>1_func"')
3535    assert_equal([], readfile('Xdidit'))
3536  endif
3537  delete('Xdidit')
3538enddef
3539
3540def Test_restoring_cpo()
3541  writefile(['vim9script', 'set nocp'], 'Xsourced')
3542  writefile(['call writefile(["done"], "Xdone")', 'quit!'], 'Xclose')
3543  if RunVim([], [], '-u NONE +"set cpo+=a" -S Xsourced -S Xclose')
3544    assert_equal(['done'], readfile('Xdone'))
3545  endif
3546  delete('Xsourced')
3547  delete('Xclose')
3548  delete('Xdone')
3549
3550  writefile(['vim9script'], 'XanotherScript')
3551  set cpo=aABceFsMny>
3552  edit XanotherScript
3553  so %
3554  assert_equal('aABceFsMny>', &cpo)
3555  :1del
3556  w
3557  so %
3558  assert_equal('aABceFsMny>', &cpo)
3559
3560  delete('XanotherScript')
3561  set cpo&vim
3562enddef
3563
3564" Use :function so we can use Check commands
3565func Test_no_redraw_when_restoring_cpo()
3566  CheckScreendump
3567  CheckFeature timers
3568
3569  let lines =<< trim END
3570    vim9script
3571    def script#func()
3572    enddef
3573  END
3574  call mkdir('Xdir/autoload', 'p')
3575  call writefile(lines, 'Xdir/autoload/script.vim')
3576
3577  let lines =<< trim END
3578      vim9script
3579      set cpo+=M
3580      exe 'set rtp^=' .. getcwd() .. '/Xdir'
3581      au CmdlineEnter : ++once timer_start(0, (_) => script#func())
3582      setline(1, 'some text')
3583  END
3584  call writefile(lines, 'XTest_redraw_cpo')
3585  let buf = RunVimInTerminal('-S XTest_redraw_cpo', {'rows': 6})
3586  call term_sendkeys(buf, "V:")
3587  call VerifyScreenDump(buf, 'Test_vim9_no_redraw', {})
3588
3589  " clean up
3590  call term_sendkeys(buf, "\<Esc>u")
3591  call StopVimInTerminal(buf)
3592  call delete('XTest_redraw_cpo')
3593  call delete('Xdir', 'rf')
3594endfunc
3595
3596
3597def Test_unset_any_variable()
3598  var lines =<< trim END
3599    var name: any
3600    assert_equal(0, name)
3601  END
3602  CheckDefAndScriptSuccess(lines)
3603enddef
3604
3605func Test_define_func_at_command_line()
3606  CheckRunVimInTerminal
3607
3608  " call indirectly to avoid compilation error for missing functions
3609  call Run_Test_define_func_at_command_line()
3610endfunc
3611
3612def Run_Test_define_func_at_command_line()
3613  # run in a separate Vim instance to avoid the script context
3614  var lines =<< trim END
3615    func CheckAndQuit()
3616      call assert_fails('call Afunc()', 'E117: Unknown function: Bfunc')
3617      call writefile(['errors: ' .. string(v:errors)], 'Xdidcmd')
3618    endfunc
3619  END
3620  writefile([''], 'Xdidcmd')
3621  writefile(lines, 'XcallFunc')
3622  var buf = RunVimInTerminal('-S XcallFunc', {rows: 6})
3623  # define Afunc() on the command line
3624  term_sendkeys(buf, ":def Afunc()\<CR>Bfunc()\<CR>enddef\<CR>")
3625  term_sendkeys(buf, ":call CheckAndQuit()\<CR>")
3626  WaitForAssert(() => assert_equal(['errors: []'], readfile('Xdidcmd')))
3627
3628  call StopVimInTerminal(buf)
3629  delete('XcallFunc')
3630  delete('Xdidcmd')
3631enddef
3632
3633def Test_script_var_scope()
3634  var lines =<< trim END
3635      vim9script
3636      if true
3637        if true
3638          var one = 'one'
3639          echo one
3640        endif
3641        echo one
3642      endif
3643  END
3644  CheckScriptFailure(lines, 'E121:', 7)
3645
3646  lines =<< trim END
3647      vim9script
3648      if true
3649        if false
3650          var one = 'one'
3651          echo one
3652        else
3653          var one = 'one'
3654          echo one
3655        endif
3656        echo one
3657      endif
3658  END
3659  CheckScriptFailure(lines, 'E121:', 10)
3660
3661  lines =<< trim END
3662      vim9script
3663      while true
3664        var one = 'one'
3665        echo one
3666        break
3667      endwhile
3668      echo one
3669  END
3670  CheckScriptFailure(lines, 'E121:', 7)
3671
3672  lines =<< trim END
3673      vim9script
3674      for i in range(1)
3675        var one = 'one'
3676        echo one
3677      endfor
3678      echo one
3679  END
3680  CheckScriptFailure(lines, 'E121:', 6)
3681
3682  lines =<< trim END
3683      vim9script
3684      {
3685        var one = 'one'
3686        assert_equal('one', one)
3687      }
3688      assert_false(exists('one'))
3689      assert_false(exists('s:one'))
3690  END
3691  CheckScriptSuccess(lines)
3692
3693  lines =<< trim END
3694      vim9script
3695      {
3696        var one = 'one'
3697        echo one
3698      }
3699      echo one
3700  END
3701  CheckScriptFailure(lines, 'E121:', 6)
3702enddef
3703
3704def Test_catch_exception_in_callback()
3705  var lines =<< trim END
3706    vim9script
3707    def Callback(...l: list<any>)
3708      try
3709        var x: string
3710        var y: string
3711        # this error should be caught with CHECKLEN
3712        [x, y] = ['']
3713      catch
3714        g:caught = 'yes'
3715      endtry
3716    enddef
3717    popup_menu('popup', {callback: Callback})
3718    feedkeys("\r", 'xt')
3719  END
3720  CheckScriptSuccess(lines)
3721
3722  unlet g:caught
3723enddef
3724
3725def Test_no_unknown_error_after_error()
3726  if !has('unix') || !has('job')
3727    throw 'Skipped: not unix of missing +job feature'
3728  endif
3729  var lines =<< trim END
3730      vim9script
3731      var source: list<number>
3732      def Out_cb(...l: list<any>)
3733          eval [][0]
3734      enddef
3735      def Exit_cb(...l: list<any>)
3736          sleep 1m
3737          source += l
3738      enddef
3739      var myjob = job_start('echo burp', {out_cb: Out_cb, exit_cb: Exit_cb, mode: 'raw'})
3740      while job_status(myjob) == 'run'
3741        sleep 10m
3742      endwhile
3743      # wait for Exit_cb() to be called
3744      sleep 200m
3745  END
3746  writefile(lines, 'Xdef')
3747  assert_fails('so Xdef', ['E684:', 'E1012:'])
3748  delete('Xdef')
3749enddef
3750
3751def InvokeNormal()
3752  exe "norm! :m+1\r"
3753enddef
3754
3755def Test_invoke_normal_in_visual_mode()
3756  xnoremap <F3> <Cmd>call <SID>InvokeNormal()<CR>
3757  new
3758  setline(1, ['aaa', 'bbb'])
3759  feedkeys("V\<F3>", 'xt')
3760  assert_equal(['bbb', 'aaa'], getline(1, 2))
3761  xunmap <F3>
3762enddef
3763
3764def Test_white_space_after_command()
3765  var lines =<< trim END
3766    exit_cb: Func})
3767  END
3768  CheckDefAndScriptFailure(lines, 'E1144:', 1)
3769
3770  lines =<< trim END
3771    e#
3772  END
3773  CheckDefAndScriptFailure(lines, 'E1144:', 1)
3774enddef
3775
3776def Test_script_var_gone_when_sourced_twice()
3777  var lines =<< trim END
3778      vim9script
3779      if exists('g:guard')
3780        finish
3781      endif
3782      g:guard = 1
3783      var name = 'thename'
3784      def g:GetName(): string
3785        return name
3786      enddef
3787      def g:SetName(arg: string)
3788        name = arg
3789      enddef
3790  END
3791  writefile(lines, 'XscriptTwice.vim')
3792  so XscriptTwice.vim
3793  assert_equal('thename', g:GetName())
3794  g:SetName('newname')
3795  assert_equal('newname', g:GetName())
3796  so XscriptTwice.vim
3797  assert_fails('call g:GetName()', 'E1149:')
3798  assert_fails('call g:SetName("x")', 'E1149:')
3799
3800  delfunc g:GetName
3801  delfunc g:SetName
3802  delete('XscriptTwice.vim')
3803  unlet g:guard
3804enddef
3805
3806def Test_import_gone_when_sourced_twice()
3807  var exportlines =<< trim END
3808      vim9script
3809      if exists('g:guard')
3810        finish
3811      endif
3812      g:guard = 1
3813      export var name = 'someName'
3814  END
3815  writefile(exportlines, 'XexportScript.vim')
3816
3817  var lines =<< trim END
3818      vim9script
3819      import name from './XexportScript.vim'
3820      def g:GetName(): string
3821        return name
3822      enddef
3823  END
3824  writefile(lines, 'XscriptImport.vim')
3825  so XscriptImport.vim
3826  assert_equal('someName', g:GetName())
3827
3828  so XexportScript.vim
3829  assert_fails('call g:GetName()', 'E1149:')
3830
3831  delfunc g:GetName
3832  delete('XexportScript.vim')
3833  delete('XscriptImport.vim')
3834  unlet g:guard
3835enddef
3836
3837def Test_unsupported_commands()
3838  var lines =<< trim END
3839      ka
3840  END
3841  CheckDefAndScriptFailure(lines, 'E1100:')
3842
3843  lines =<< trim END
3844      :1ka
3845  END
3846  CheckDefAndScriptFailure(lines, 'E481:')
3847
3848  lines =<< trim END
3849    t
3850  END
3851  CheckDefFailure(lines, 'E1100:')
3852  CheckScriptFailure(['vim9script'] + lines, 'E1100:')
3853
3854  lines =<< trim END
3855    x
3856  END
3857  CheckDefFailure(lines, 'E1100:')
3858  CheckScriptFailure(['vim9script'] + lines, 'E1100:')
3859
3860  lines =<< trim END
3861    xit
3862  END
3863  CheckDefFailure(lines, 'E1100:')
3864  CheckScriptFailure(['vim9script'] + lines, 'E1100:')
3865enddef
3866
3867def Test_mapping_line_number()
3868  var lines =<< trim END
3869      vim9script
3870      def g:FuncA()
3871          # Some comment
3872          FuncB(0)
3873      enddef
3874          # Some comment
3875      def FuncB(
3876          # Some comment
3877          n: number
3878      )
3879          exe 'nno '
3880              # Some comment
3881              .. '<F3> a'
3882              .. 'b'
3883              .. 'c'
3884      enddef
3885  END
3886  CheckScriptSuccess(lines)
3887  var res = execute('verbose nmap <F3>')
3888  assert_match('No mapping found', res)
3889
3890  g:FuncA()
3891  res = execute('verbose nmap <F3>')
3892  assert_match(' <F3> .* abc.*Last set from .*XScriptSuccess\d\+ line 11', res)
3893
3894  nunmap <F3>
3895  delfunc g:FuncA
3896enddef
3897
3898" Keep this last, it messes up highlighting.
3899def Test_substitute_cmd()
3900  new
3901  setline(1, 'something')
3902  :substitute(some(other(
3903  assert_equal('otherthing', getline(1))
3904  bwipe!
3905
3906  # also when the context is Vim9 script
3907  var lines =<< trim END
3908    vim9script
3909    new
3910    setline(1, 'something')
3911    :substitute(some(other(
3912    assert_equal('otherthing', getline(1))
3913    bwipe!
3914  END
3915  writefile(lines, 'Xvim9lines')
3916  source Xvim9lines
3917
3918  delete('Xvim9lines')
3919enddef
3920
3921" vim: ts=8 sw=2 sts=2 expandtab tw=80 fdm=marker
3922