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patch 8.2.1388: Vim9: += only works for numbers

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Problem:    Vim9: += only works for numbers.
Solution:   Use += as concatenate for a list. (closes #6646)
This commit is contained in:
Bram Moolenaar
2020-08-07 20:46:20 +02:00
parent e7b1ea0276
commit dd29f1b056
3 changed files with 77 additions and 32 deletions
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13
src/testdir/test_vim9_script.vim
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@@ -126,13 +126,13 @@ def Test_assignment()
$SOME_ENV_VAR ..= 'more'
assert_equal('somemore', $SOME_ENV_VAR)
call CheckDefFailure(['$SOME_ENV_VAR += "more"'], 'E1013:')
call CheckDefFailure(['$SOME_ENV_VAR += "more"'], 'E1051:')
call CheckDefFailure(['$SOME_ENV_VAR += 123'], 'E1013:')
@a = 'areg'
@a ..= 'add'
assert_equal('aregadd', @a)
call CheckDefFailure(['@a += "more"'], 'E1013:')
call CheckDefFailure(['@a += "more"'], 'E1051:')
call CheckDefFailure(['@a += 123'], 'E1013:')
lines =<< trim END
@@ -146,7 +146,7 @@ def Test_assignment()
v:errmsg = 'none'
v:errmsg ..= 'again'
assert_equal('noneagain', v:errmsg)
call CheckDefFailure(['v:errmsg += "more"'], 'E1013:')
call CheckDefFailure(['v:errmsg += "more"'], 'E1051:')
call CheckDefFailure(['v:errmsg += 123'], 'E1013:')
# single letter variables
@@ -224,6 +224,13 @@ def Test_assignment_list()
assert_equal([1, 88, 99], list2)
list2[-3] = 77
assert_equal([77, 88, 99], list2)
list2 += [100]
assert_equal([77, 88, 99, 100], list2)
list3 += ['end']
assert_equal(['sdf', 'asdf', 'end'], list3)
call CheckDefExecFailure(['let ll = [1, 2, 3]', 'll[-4] = 6'], 'E684:')
call CheckDefExecFailure(['let [v1, v2] = [1, 2]'], 'E1092:')