patch 8.2.2529: Vim9: Not possible to use legacy and Vim9 script in one file
Problem: Vim9: Not possible to use legacy and Vim9 script in one file.
Solution: Vim9: allow for "if false" before :vim9script. (closes #7851)
diff --git a/src/testdir/test_vim9_script.vim b/src/testdir/test_vim9_script.vim
index 922080d..f444bb5 100644
--- a/src/testdir/test_vim9_script.vim
+++ b/src/testdir/test_vim9_script.vim
@@ -1262,6 +1262,27 @@
nunmap <F3>
enddef
+def Test_vim9script_mix()
+ var lines =<< trim END
+ if has(g:feature)
+ " legacy script
+ let g:legacy = 1
+ finish
+ endif
+ vim9script
+ g:legacy = 0
+ END
+ g:feature = 'eval'
+ g:legacy = -1
+ CheckScriptSuccess(lines)
+ assert_equal(1, g:legacy)
+
+ g:feature = 'noteval'
+ g:legacy = -1
+ CheckScriptSuccess(lines)
+ assert_equal(0, g:legacy)
+enddef
+
def Test_vim9script_fails()
CheckScriptFailure(['scriptversion 2', 'vim9script'], 'E1039:')
CheckScriptFailure(['vim9script', 'scriptversion 2'], 'E1040:')