patch 8.2.2565: Vim9: "..=" not always recognized
Problem: Vim9: "..=" not always recognized.
Solution: Do not consider "..=" to be string concatenation. (closes #7905)
diff --git a/src/testdir/test_vim9_assign.vim b/src/testdir/test_vim9_assign.vim
index bcddc4f..23c0a89 100644
--- a/src/testdir/test_vim9_assign.vim
+++ b/src/testdir/test_vim9_assign.vim
@@ -1099,6 +1099,44 @@
CheckScriptSuccess(lines)
enddef
+def Test_assign_dict_with_op()
+ var lines =<< trim END
+ vim9script
+ var ds: dict<string> = {a: 'x'}
+ ds['a'] ..= 'y'
+ ds.a ..= 'z'
+ assert_equal('xyz', ds.a)
+
+ var dn: dict<number> = {a: 9}
+ dn['a'] += 2
+ assert_equal(11, dn.a)
+ dn.a += 2
+ assert_equal(13, dn.a)
+
+ dn['a'] -= 3
+ assert_equal(10, dn.a)
+ dn.a -= 2
+ assert_equal(8, dn.a)
+
+ dn['a'] *= 2
+ assert_equal(16, dn.a)
+ dn.a *= 2
+ assert_equal(32, dn.a)
+
+ dn['a'] /= 3
+ assert_equal(10, dn.a)
+ dn.a /= 2
+ assert_equal(5, dn.a)
+
+ dn['a'] %= 3
+ assert_equal(2, dn.a)
+ dn.a %= 6
+ assert_equal(2, dn.a)
+ END
+ # TODO: this should also work with a :def function
+ CheckScriptSuccess(lines)
+enddef
+
def Test_assign_lambda()
# check if assign a lambda to a variable which type is func or any.
var lines =<< trim END