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patch 9.1.0190: complete_info() returns wrong order of items

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Problem:  complete_info() returns wrong order of items
          (after v9.0.2018)
Solution: Revert Patch v9.0.2018
          (Girish Palya)

bug fix: complete_info() gives wrong results

1) complete_info() reverses list of items during <c-p>
2) 'selected' item index is wrong during <c-p>
3) number of items returnd can be wrong

Solution:
- Decouple 'cp_number' from 'selected' index since they need not be
  correlated
- Do not iterate the list backwards
- Add targeted tests

Regression introduced by 69fb5afb3b
Following are unnecessary commits to patch problems from above:
fef6630166
daef8c7437

All the tests from above commits are retained though.

fixes: #14204
closes: #14241

Signed-off-by: Girish Palya <girishji@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Girish Palya
2024-03-20 20:07:29 +01:00
committed by Christian Brabandt
parent 2708c0b585
commit 8950bf7f8b
3 changed files with 110 additions and 84 deletions
Download Patch File Download Diff File Expand all files Collapse all files

134
src/insexpand.c
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@@ -3045,74 +3045,6 @@ ins_compl_update_sequence_numbers(void)
}
}
static int
info_add_completion_info(list_T *li)
{
compl_T *match;
int forward = compl_dir_forward();
if (compl_first_match == NULL)
return OK;
match = compl_first_match;
// There are four cases to consider here:
// 1) when just going forward through the menu,
// compl_first_match should point to the initial entry with
// number zero and CP_ORIGINAL_TEXT flag set
// 2) when just going backwards,
// compl-first_match should point to the last entry before
// the entry with the CP_ORIGINAL_TEXT flag set
// 3) when first going forwards and then backwards, e.g.
// pressing C-N, C-P, compl_first_match points to the
// last entry before the entry with the CP_ORIGINAL_TEXT
// flag set and next-entry moves opposite through the list
// compared to case 2, so pretend the direction is forward again
// 4) when first going backwards and then forwards, e.g.
// pressing C-P, C-N, compl_first_match points to the
// first entry with the CP_ORIGINAL_TEXT
// flag set and next-entry moves in opposite direction through the list
// compared to case 1, so pretend the direction is backwards again
//
// But only do this when the 'noselect' option is not active!
if (!compl_no_select)
{
if (forward && !match_at_original_text(match))
forward = FALSE;
else if (!forward && match_at_original_text(match))
forward = TRUE;
}
// Skip the element with the CP_ORIGINAL_TEXT flag at the beginning, in case of
// forward completion, or at the end, in case of backward completion.
match = forward || match->cp_prev == NULL ? match->cp_next :
(compl_no_select && match_at_original_text(match) ? match->cp_prev : match->cp_prev->cp_prev);
while (match != NULL && !match_at_original_text(match))
{
dict_T *di = dict_alloc();
if (di == NULL)
return FAIL;
if (list_append_dict(li, di) == FAIL)
return FAIL;
dict_add_string(di, "word", match->cp_str);
dict_add_string(di, "abbr", match->cp_text[CPT_ABBR]);
dict_add_string(di, "menu", match->cp_text[CPT_MENU]);
dict_add_string(di, "kind", match->cp_text[CPT_KIND]);
dict_add_string(di, "info", match->cp_text[CPT_INFO]);
if (match->cp_user_data.v_type == VAR_UNKNOWN)
// Add an empty string for backwards compatibility
dict_add_string(di, "user_data", (char_u *)"");
else
dict_add_tv(di, "user_data", &match->cp_user_data);
match = forward ? match->cp_next : match->cp_prev;
}
return OK;
}
/*
* Get complete information
*/
@@ -3158,24 +3090,60 @@ get_complete_info(list_T *what_list, dict_T *retdict)
if (ret == OK && (what_flag & CI_WHAT_PUM_VISIBLE))
ret = dict_add_number(retdict, "pum_visible", pum_visible());
if (ret == OK && (what_flag & CI_WHAT_ITEMS))
if (ret == OK && (what_flag & CI_WHAT_ITEMS || what_flag & CI_WHAT_SELECTED))
{
list_T *li;
dict_T *di;
compl_T *match;
int selected_idx = -1;
li = list_alloc();
if (li == NULL)
return;
ret = dict_add_list(retdict, "items", li);
if (ret == OK)
ret = info_add_completion_info(li);
}
if (ret == OK && (what_flag & CI_WHAT_SELECTED))
{
if (compl_curr_match != NULL && compl_curr_match->cp_number == -1)
ins_compl_update_sequence_numbers();
ret = dict_add_number(retdict, "selected", compl_curr_match != NULL
? compl_curr_match->cp_number - 1 : -1);
if (what_flag & CI_WHAT_ITEMS)
{
li = list_alloc();
if (li == NULL)
return;
ret = dict_add_list(retdict, "items", li);
}
if (ret == OK && what_flag & CI_WHAT_SELECTED)
if (compl_curr_match != NULL && compl_curr_match->cp_number == -1)
ins_compl_update_sequence_numbers();
if (ret == OK && compl_first_match != NULL)
{
int list_idx = 0;
match = compl_first_match;
do
{
if (!match_at_original_text(match))
{
if (what_flag & CI_WHAT_ITEMS)
{
di = dict_alloc();
if (di == NULL)
return;
ret = list_append_dict(li, di);
if (ret != OK)
return;
dict_add_string(di, "word", match->cp_str);
dict_add_string(di, "abbr", match->cp_text[CPT_ABBR]);
dict_add_string(di, "menu", match->cp_text[CPT_MENU]);
dict_add_string(di, "kind", match->cp_text[CPT_KIND]);
dict_add_string(di, "info", match->cp_text[CPT_INFO]);
if (match->cp_user_data.v_type == VAR_UNKNOWN)
// Add an empty string for backwards compatibility
dict_add_string(di, "user_data", (char_u *)"");
else
dict_add_tv(di, "user_data", &match->cp_user_data);
}
if (compl_curr_match != NULL && compl_curr_match->cp_number == match->cp_number)
selected_idx = list_idx;
list_idx += 1;
}
match = match->cp_next;
}
while (match != NULL && !is_first_match(match));
}
if (ret == OK && (what_flag & CI_WHAT_SELECTED))
ret = dict_add_number(retdict, "selected", selected_idx);
}
if (ret == OK && (what_flag & CI_WHAT_INSERTED))