diff options
Diffstat (limited to 'src/vim9instr.c')
| -rw-r--r-- | src/vim9instr.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/vim9instr.c b/src/vim9instr.c index 85a49a893..18dad1168 100644 --- a/src/vim9instr.c +++ b/src/vim9instr.c @@ -1533,6 +1533,8 @@ generate_LISTAPPEND(cctx_T *cctx) // For checking the item type we use the declared type of the list and the // current type of the added item, adding a string to [1, 2] is OK. list_type = get_decl_type_on_stack(cctx, 1); + if (arg_type_modifiable(list_type, 1) == FAIL) + return FAIL; item_type = get_type_on_stack(cctx, 0); expected = list_type->tt_member; if (need_type(item_type, expected, -1, 0, cctx, FALSE, FALSE) == FAIL) @@ -1554,7 +1556,9 @@ generate_BLOBAPPEND(cctx_T *cctx) { type_T *item_type; - // Caller already checked that blob_type is a blob. + // Caller already checked that blob_type is a blob, check it is modifiable. + if (arg_type_modifiable(get_decl_type_on_stack(cctx, 1), 1) == FAIL) + return FAIL; item_type = get_type_on_stack(cctx, 0); if (need_type(item_type, &t_number, -1, 0, cctx, FALSE, FALSE) == FAIL) return FAIL; |