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vim-patch:8.2.0633: crash when using null partial in filter()

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Problem:    Crash when using null partial in filter().
Solution:   Fix crash.  Add more tests. (Yegappan Lakshmanan, closes vim/vim#5976)

9d8d0b5c64

Co-authored-by: Bram Moolenaar <Bram@vim.org>
This commit is contained in:
zeertzjq
2023-04-15 13:17:32 +08:00
parent 3d80392cab
commit 4b49f312a0
8 changed files with 88 additions and 17 deletions
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8
src/nvim/eval.c
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@@ -789,6 +789,9 @@ int eval_expr_typval(const typval_T *expr, typval_T *argv, int argc, typval_T *r
}
} else if (expr->v_type == VAR_PARTIAL) {
partial_T *const partial = expr->vval.v_partial;
if (partial == NULL) {
return FAIL;
}
const char *const s = partial_name(partial);
if (s == NULL || *s == NUL) {
return FAIL;
@@ -8640,8 +8643,9 @@ int typval_compare(typval_T *typ1, typval_T *typ2, exprtype_T type, bool ic)
}
if ((typ1->v_type == VAR_PARTIAL && typ1->vval.v_partial == NULL)
|| (typ2->v_type == VAR_PARTIAL && typ2->vval.v_partial == NULL)) {
// when a partial is NULL assume not equal
n1 = false;
// When both partials are NULL, then they are equal.
// Otherwise they are not equal.
n1 = (typ1->vval.v_partial == typ2->vval.v_partial);
} else if (type_is) {
if (typ1->v_type == VAR_FUNC && typ2->v_type == VAR_FUNC) {
// strings are considered the same if their value is