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fix(highlight): fix the seg fault caused by the invalid linked hl ids

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This commit is contained in:
William Wong 2024-08-13 16:25:29 +08:00 committed by Lewis Russell
parent 9d74dc3ac5
commit 6bcefad5a6
2 changed files with 3 additions and 1 deletions
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3
src/nvim/api/private/helpers.c
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@ -774,7 +774,8 @@ int object_to_hl_id(Object obj, const char *what, Error *err)
String str = obj.data.string;
return str.size ? syn_check_group(str.data, str.size) : 0;
} else if (obj.type == kObjectTypeInteger) {
return MAX((int)obj.data.integer, 0);
int id = (int)obj.data.integer;
return (1 <= id && id <= highlight_num_groups()) ? id : 0;
} else {
api_set_error(err, kErrorTypeValidation, "Invalid highlight: %s", what);
return 0;

1
src/nvim/highlight_group.c
View File

@ -1648,6 +1648,7 @@ static bool hlgroup2dict(Dictionary *hl, NS ns_id, int hl_id, Arena *arena)
PUT_C(*hl, "default", BOOLEAN_OBJ(true));
}
if (link > 0) {
assert(1 <= link && link <= highlight_ga.ga_len);
PUT_C(*hl, "link", CSTR_AS_OBJ(hl_table[link - 1].sg_name));
}
Dictionary hl_cterm = arena_dict(arena, HLATTRS_DICT_SIZE);