patch 8.2.4576: Vim9: error for comparing with null can be annoying
Problem: Vim9: error for comparing with null can be annoying.
Solution: Allow comparing anything with null. (closes #9948)
diff --git a/src/vim9instr.c b/src/vim9instr.c
index de144dc..48e7edf 100644
--- a/src/vim9instr.c
+++ b/src/vim9instr.c
@@ -397,20 +397,8 @@
vartype_name(vartype1), vartype_name(vartype2));
return ISN_DROP;
}
- switch (vartype1 == VAR_SPECIAL ? vartype2 : vartype1)
- {
- case VAR_BLOB: break;
- case VAR_CHANNEL: break;
- case VAR_DICT: break;
- case VAR_FUNC: break;
- case VAR_JOB: break;
- case VAR_LIST: break;
- case VAR_PARTIAL: break;
- case VAR_STRING: break;
- default: semsg(_(e_cannot_compare_str_with_str),
- vartype_name(vartype1), vartype_name(vartype2));
- return ISN_DROP;
- }
+ // although comparing null with number, float or bool is not useful, we
+ // allow it
isntype = ISN_COMPARENULL;
}