patch 8.2.4634: Vim9: cannot initialize a variable to null_list
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.
diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
index 41e398a..209bb10 100644
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -754,6 +754,12 @@
assert_false(v:null != test_null_blob())
assert_false(null != null_blob)
+ var nb = null_blob
+ assert_true(nb == null_blob)
+ assert_true(nb == null)
+ assert_true(null_blob == nb)
+ assert_true(null == nb)
+
if has('channel')
assert_true(test_null_channel() == v:null)
assert_true(null_channel == null)
@@ -763,6 +769,12 @@
assert_false(null_channel != null)
assert_false(v:null != test_null_channel())
assert_false(null != null_channel)
+
+ var nc = null_channel
+ assert_true(nc == null_channel)
+ assert_true(nc == null)
+ assert_true(null_channel == nc)
+ assert_true(null == nc)
endif
assert_true(test_null_dict() == v:null)
@@ -779,6 +791,12 @@
assert_false(g:null_dict != v:null)
assert_false(v:null != g:null_dict)
+ var nd = null_dict
+ assert_true(nd == null_dict)
+ assert_true(nd == null)
+ assert_true(null_dict == nd)
+ assert_true(null == nd)
+
assert_true(test_null_function() == v:null)
assert_true(null_function == null)
assert_true(v:null == test_null_function())
@@ -788,6 +806,12 @@
assert_false(v:null != test_null_function())
assert_false(null != null_function)
+ var Nf = null_function
+ assert_true(Nf == null_function)
+ assert_true(Nf == null)
+ assert_true(null_function == Nf)
+ assert_true(null == Nf)
+
if has('job')
assert_true(test_null_job() == v:null)
assert_true(null_job == null)
@@ -797,6 +821,12 @@
assert_false(null_job != null)
assert_false(v:null != test_null_job())
assert_false(null != null_job)
+
+ var nj = null_job
+ assert_true(nj == null_job)
+ assert_true(nj == null)
+ assert_true(null_job == nj)
+ assert_true(null == nj)
endif
assert_true(test_null_list() == v:null)
@@ -813,6 +843,12 @@
assert_true(g:not_null_list != v:null)
assert_true(v:null != g:not_null_list)
+ var nl = null_list
+ assert_true(nl == null_list)
+ assert_true(nl == null)
+ assert_true(null_list == nl)
+ assert_true(null == nl)
+
assert_true(test_null_partial() == v:null)
assert_true(null_partial == null)
assert_true(v:null == test_null_partial())
@@ -822,6 +858,12 @@
assert_false(v:null != test_null_partial())
assert_false(null != null_partial)
+ var Np = null_partial
+ assert_true(Np == null_partial)
+ assert_true(Np == null)
+ assert_true(null_partial == Np)
+ assert_true(null == Np)
+
assert_true(test_null_string() == v:null)
assert_true(null_string == null)
assert_true(v:null == test_null_string())
@@ -837,6 +879,12 @@
assert_false(null_string isnot test_null_string())
assert_true(null_string isnot '')
assert_true('' isnot null_string)
+
+ var ns = null_string
+ assert_true(ns == null_string)
+ assert_true(ns == null)
+ assert_true(null_string == ns)
+ assert_true(null == ns)
END
v9.CheckDefAndScriptSuccess(lines)
unlet g:null_dict