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patch 9.0.0840: cannot change a slice of a const list

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Problem:    Cannot change a slice of a const list. (Takumi KAGIYAMA)
Solution:   Remove the const flag from the slice type. (closes #11490)
This commit is contained in:
Bram Moolenaar
2022-11-06 18:27:17 +00:00
parent 69a8bb8dc1
commit adbc08fd69
3 changed files with 26 additions and 0 deletions
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12
src/vim9expr.c
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@@ -185,6 +185,18 @@ compile_member(int is_slice, int *keeping_dict, cctx_T *cctx)
// a copy is made so the member type is no longer declared
if (typep->type_decl->tt_type == VAR_LIST)
typep->type_decl = &t_list_any;
// a copy is made, the composite is no longer "const"
if (typep->type_curr->tt_flags & TTFLAG_CONST)
{
type_T *type = copy_type(typep->type_curr, cctx->ctx_type_list);
if (type != typep->type_curr) // did get a copy
{
type->tt_flags &= ~(TTFLAG_CONST | TTFLAG_STATIC);
typep->type_curr = type;
}
}
}
else
{