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patch 8.2.4634: Vim9: cannot initialize a variable to null_list

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Problem:    Vim9: cannot initialize a variable to null_list.
Solution:   Give negative count to NEWLIST. (closes #10027)
            Also fix inconsistencies in comparing with null values.
This commit is contained in:
Bram Moolenaar
2022-03-27 16:29:53 +01:00
parent c75bca3ee9
commit ec15b1cfdc
12 changed files with 179 additions and 84 deletions
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4
src/testdir/test_vim9_builtin.vim
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@@ -122,13 +122,13 @@ def Test_add_blob()
END
v9.CheckDefExecFailure(lines, 'E1131:', 2)
# Getting variable with NULL blob allocates a new blob at script level
# Getting variable with NULL blob fails
lines =<< trim END
vim9script
var b: blob = test_null_blob()
add(b, 123)
END
v9.CheckScriptSuccess(lines)
v9.CheckScriptFailure(lines, 'E1131:', 3)
enddef
def Test_add_list()