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patch 9.1.0197: Vim9: problem evaluating negated boolean logic

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Problem:  Vim9: problem evaluating negated boolean logic
          (lxhillwind)
Solution: Don't clear the first value on short circuit evaluation
          (Yegappan Lakshmanan)

fixes: #14265
closes: #14269

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Yegappan Lakshmanan
2024-03-22 19:37:29 +01:00
committed by Christian Brabandt
parent 8e37daf620
commit 5d77364e4a
3 changed files with 30 additions and 1 deletions
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27
src/testdir/test_vim9_expr.vim
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@@ -311,6 +311,33 @@ def Test_expr2()
assert_equal([1], g:vals)
END
v9.CheckDefAndScriptSuccess(lines)
# test the short-circuit operation
lines =<< trim END
assert_equal(true, true && true)
assert_equal(false, true && !true)
assert_equal(false, !true && true)
assert_equal(false, !true && !true)
assert_equal(true, true || true)
assert_equal(true, true || !true)
assert_equal(true, !true || true)
assert_equal(false, !true || !true)
assert_equal(false, false && false)
assert_equal(false, false && !false)
assert_equal(false, !false && false)
assert_equal(true, !false && !false)
assert_equal(false, false || false)
assert_equal(true, false || !false)
assert_equal(true, !false || false)
assert_equal(true, !false || !false)
assert_equal(false, !true && !true && !true)
assert_equal(true, !false || !false || !false)
END
v9.CheckDefAndScriptSuccess(lines)
enddef
def Test_expr2_vimscript()