patch 8.2.4138: Vim9: no error for return with argument when invalid
Problem: Vim9: no error for return with argument when the function does not
return anything.
Solution: Give an error for the invalid argument. (issue #9497)
diff --git a/src/testdir/test_vim9_func.vim b/src/testdir/test_vim9_func.vim
index 75d0dd0..f495ddf 100644
--- a/src/testdir/test_vim9_func.vim
+++ b/src/testdir/test_vim9_func.vim
@@ -341,6 +341,20 @@
ReturnString()->assert_equal('string')
ReturnNumber()->assert_equal(123)
assert_fails('ReturnGlobal()', 'E1012: Type mismatch; expected number but got string', '', 1, 'ReturnGlobal')
+
+ var lines =<< trim END
+ vim9script
+
+ def Msg()
+ echomsg 'in Msg()...'
+ enddef
+
+ def Func()
+ return Msg()
+ enddef
+ defcompile
+ END
+ CheckScriptFailure(lines, 'E1096:')
enddef
def Test_check_argument_type()