patch 8.2.1204: Vim9: true and false not recognized in Vim9 script
Problem: Vim9: true and false not recognized in Vim9 script.
Solution: Recognize true and false.
diff --git a/src/eval.c b/src/eval.c
index 14c2849..c524151 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -3079,8 +3079,22 @@
else if (flags & EVAL_CONSTANT)
ret = FAIL;
else if (evaluate)
- // get value of variable
- ret = eval_variable(s, len, rettv, NULL, TRUE, FALSE);
+ {
+ // get the value of "true", "false" or a variable
+ if (len == 4 && in_vim9script() && STRNCMP(s, "true", 4) == 0)
+ {
+ rettv->v_type = VAR_BOOL;
+ rettv->vval.v_number = VVAL_TRUE;
+ }
+ else if (len == 5 && in_vim9script()
+ && STRNCMP(s, "false", 4) == 0)
+ {
+ rettv->v_type = VAR_BOOL;
+ rettv->vval.v_number = VVAL_FALSE;
+ }
+ else
+ ret = eval_variable(s, len, rettv, NULL, TRUE, FALSE);
+ }
else
{
// skip the name
diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
index ede464e..cba41e3 100644
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -1024,6 +1024,19 @@
call CheckDefFailure(['v:none = 22'], 'E46:')
enddef
+def Test_expr7_special_vim9script()
+ let lines =<< trim END
+ vim9script
+ let t = true
+ let f = false
+ assert_equal(v:true, true)
+ assert_equal(true, t)
+ assert_equal(v:false, false)
+ assert_equal(false, f)
+ END
+ CheckScriptSuccess(lines)
+enddef
+
def Test_expr7_list()
" list
assert_equal(g:list_empty, [])
diff --git a/src/version.c b/src/version.c
index fa57356..49896f7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 1204,
+/**/
1203,
/**/
1202,