patch 8.2.1529: Vim9: :elseif may be compiled when not needed
Problem: Vim9: :elseif may be compiled when not needed.
Solution: Do evaluate the :elseif expression.
diff --git a/src/vim9compile.c b/src/vim9compile.c
index 3e9b42c..11a75c1 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -5519,6 +5519,7 @@
isn_T *isn;
scope_T *scope = cctx->ctx_scope;
ppconst_T ppconst;
+ skip_T save_skip = cctx->ctx_skip;
if (scope == NULL || scope->se_type != IF_SCOPE)
{
@@ -5541,11 +5542,14 @@
// compile "expr"; if we know it evaluates to FALSE skip the block
CLEAR_FIELD(ppconst);
+ if (cctx->ctx_skip == SKIP_YES)
+ cctx->ctx_skip = SKIP_UNKNOWN;
if (compile_expr1(&p, cctx, &ppconst) == FAIL)
{
clear_ppconst(&ppconst);
return NULL;
}
+ cctx->ctx_skip = save_skip;
if (scope->se_skip_save == SKIP_YES)
clear_ppconst(&ppconst);
else if (instr->ga_len == instr_count && ppconst.pp_used == 1)