diff options
author | Bram Moolenaar <Bram@vim.org> | 2018-09-24 21:50:12 +0200 |
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committer | Bram Moolenaar <Bram@vim.org> | 2018-09-24 21:50:12 +0200 |
commit | 6dae96ef7ad56191c13c4993f04cbfd450d91ad2 (patch) | |
tree | 0d2f081780dd42ca552311347de2edf5a5c51ced /src/quickfix.c | |
parent | d339828b4b0dde662dc9ce65baf1cc098aec402c (diff) |
patch 8.1.0431: the qf_jump() function is too longv8.1.0431
Problem: The qf_jump() function is too long.
Solution: Refactor to split it into several functions. (Yegappan Lakshmanan)
Diffstat (limited to 'src/quickfix.c')
-rw-r--r-- | src/quickfix.c | 265 |
1 files changed, 160 insertions, 105 deletions
diff --git a/src/quickfix.c b/src/quickfix.c index 9c346519fa..59b3a227c8 100644 --- a/src/quickfix.c +++ b/src/quickfix.c @@ -2521,10 +2521,11 @@ get_prev_valid_entry( get_nth_valid_entry( qf_list_T *qfl, int errornr, - qfline_T *qf_ptr, - int *qf_index, - int dir) + int dir, + int *new_qfidx) { + qfline_T *qf_ptr = qfl->qf_ptr; + int qf_idx = qfl->qf_index; qfline_T *prev_qf_ptr; int prev_index; static char_u *e_no_more_items = (char_u *)N_("E553: No more items"); @@ -2533,16 +2534,16 @@ get_nth_valid_entry( while (errornr--) { prev_qf_ptr = qf_ptr; - prev_index = *qf_index; + prev_index = qf_idx; if (dir == FORWARD || dir == FORWARD_FILE) - qf_ptr = get_next_valid_entry(qfl, qf_ptr, qf_index, dir); + qf_ptr = get_next_valid_entry(qfl, qf_ptr, &qf_idx, dir); else - qf_ptr = get_prev_valid_entry(qfl, qf_ptr, qf_index, dir); + qf_ptr = get_prev_valid_entry(qfl, qf_ptr, &qf_idx, dir); if (qf_ptr == NULL) { qf_ptr = prev_qf_ptr; - *qf_index = prev_index; + qf_idx = prev_index; if (err != NULL) { EMSG(_(err)); @@ -2554,28 +2555,27 @@ get_nth_valid_entry( err = NULL; } + *new_qfidx = qf_idx; return qf_ptr; } /* - * Get n'th (errornr) quickfix entry + * Get n'th (errornr) quickfix entry from the current entry in the quickfix + * list 'qfl'. Returns a pointer to the new entry and the index in 'new_qfidx' */ static qfline_T * -get_nth_entry( - qf_list_T *qfl, - int errornr, - qfline_T *qf_ptr, - int *cur_qfidx) +get_nth_entry(qf_list_T *qfl, int errornr, int *new_qfidx) { - int qf_idx = *cur_qfidx; + qfline_T *qf_ptr = qfl->qf_ptr; + int qf_idx = qfl->qf_index; - /* New error number is less than the current error number */ + // New error number is less than the current error number while (errornr < qf_idx && qf_idx > 1 && qf_ptr->qf_prev != NULL) { --qf_idx; qf_ptr = qf_ptr->qf_prev; } - /* New error number is greater than the current error number */ + // New error number is greater than the current error number while (errornr > qf_idx && qf_idx < qfl->qf_count && qf_ptr->qf_next != NULL) { @@ -2583,7 +2583,33 @@ get_nth_entry( qf_ptr = qf_ptr->qf_next; } - *cur_qfidx = qf_idx; + *new_qfidx = qf_idx; + return qf_ptr; +} + +/* + * Get a entry specied by 'errornr' and 'dir' from the current + * quickfix/location list. 'errornr' specifies the index of the entry and 'dir' + * specifies the direction (FORWARD/BACKWARD/FORWARD_FILE/BACKWARD_FILE). + * Returns a pointer to the entry and the index of the new entry is stored in + * 'new_qfidx'. + */ + static qfline_T * +qf_get_entry( + qf_list_T *qfl, + int errornr, + int dir, + int *new_qfidx) +{ + qfline_T *qf_ptr = qfl->qf_ptr; + int qfidx = qfl->qf_index; + + if (dir != 0) // next/prev valid entry + qf_ptr = get_nth_valid_entry(qfl, errornr, dir, &qfidx); + else if (errornr != 0) // go to specified number + qf_ptr = get_nth_entry(qfl, errornr, &qfidx); + + *new_qfidx = qfidx; return qf_ptr; } @@ -2881,6 +2907,9 @@ qf_jump_to_usable_window(int qf_fnum, int *opened_window) /* * Edit the selected file or help file. + * Returns OK if successfully edited the file, FAIL on failing to open the + * buffer and NOTDONE if the quickfix/location list was freed by an autocmd + * when opening the buffer. */ static int qf_jump_edit_buffer( @@ -2888,8 +2917,7 @@ qf_jump_edit_buffer( qfline_T *qf_ptr, int forceit, win_T *oldwin, - int *opened_window, - int *abort) + int *opened_window) { qf_list_T *qfl = &qi->qf_lists[qi->qf_curlist]; int retval = OK; @@ -2925,13 +2953,13 @@ qf_jump_edit_buffer( if (!win_valid_any_tab(oldwin)) { EMSG(_("E924: Current window was closed")); - *abort = TRUE; *opened_window = FALSE; + return NOTDONE; } else if (!qflist_valid(oldwin, save_qfid)) { EMSG(_(e_loc_list_changed)); - *abort = TRUE; + return NOTDONE; } } else if (old_qf_curlist != qi->qf_curlist @@ -2941,11 +2969,8 @@ qf_jump_edit_buffer( EMSG(_("E925: Current quickfix was changed")); else EMSG(_(e_loc_list_changed)); - *abort = TRUE; + return NOTDONE; } - - if (*abort) - retval = FAIL; } return retval; @@ -3066,6 +3091,90 @@ qf_jump_print_msg( } /* + * Find a usable window for opening a file from the quickfix/location list. If + * a window is not found then open a new window. + * Returns OK if successfully jumped or opened a window. Returns FAIL if not + * able to jump/open a window. Returns NOTDONE if a file is not associated + * with the entry. + */ + static int +qf_jump_open_window(qf_info_T *qi, qfline_T *qf_ptr, int *opened_window) +{ + // For ":helpgrep" find a help window or open one. + if (qf_ptr->qf_type == 1 && (!bt_help(curwin->w_buffer) || cmdmod.tab != 0)) + if (jump_to_help_window(qi, opened_window) == FAIL) + return FAIL; + + // If currently in the quickfix window, find another window to show the + // file in. + if (bt_quickfix(curbuf) && !*opened_window) + { + // If there is no file specified, we don't know where to go. + // But do advance, otherwise ":cn" gets stuck. + if (qf_ptr->qf_fnum == 0) + return NOTDONE; + + if (qf_jump_to_usable_window(qf_ptr->qf_fnum, opened_window) == FAIL) + return FAIL; + } + + return OK; +} + +/* + * Edit a selected file from the quickfix/location list and jump to a + * particular line/column, adjust the folds and display a message about the + * jump. + * Returns OK on success and FAIL on failing to open the file/buffer. Returns + * NOTDONE if the quickfix/location list is freed by an autocmd when opening + * the file. + */ + static int +qf_jump_to_buffer( + qf_info_T *qi, + int qf_index, + qfline_T *qf_ptr, + int forceit, + win_T *oldwin, + int *opened_window, + int openfold, + int print_message) +{ + buf_T *old_curbuf; + linenr_T old_lnum; + int retval = OK; + + // If there is a file name, read the wanted file if needed, and check + // autowrite etc. + old_curbuf = curbuf; + old_lnum = curwin->w_cursor.lnum; + + if (qf_ptr->qf_fnum != 0) + { + retval = qf_jump_edit_buffer(qi, qf_ptr, forceit, oldwin, + opened_window); + if (retval != OK) + return retval; + } + + // When not switched to another buffer, still need to set pc mark + if (curbuf == old_curbuf) + setpcmark(); + + qf_jump_goto_line(qf_ptr->qf_lnum, qf_ptr->qf_col, qf_ptr->qf_viscol, + qf_ptr->qf_pattern); + +#ifdef FEAT_FOLDING + if ((fdo_flags & FDO_QUICKFIX) && openfold) + foldOpenCursor(); +#endif + if (print_message) + qf_jump_print_msg(qi, qf_index, qf_ptr, old_curbuf, old_lnum); + + return retval; +} + +/* * jump to a quickfix line * if dir == FORWARD go "errornr" valid entries forward * if dir == BACKWARD go "errornr" valid entries backward @@ -3085,15 +3194,13 @@ qf_jump(qf_info_T *qi, qfline_T *old_qf_ptr; int qf_index; int old_qf_index; - buf_T *old_curbuf; - linenr_T old_lnum; char_u *old_swb = p_swb; unsigned old_swb_flags = swb_flags; int opened_window = FALSE; win_T *oldwin = curwin; int print_message = TRUE; #ifdef FEAT_FOLDING - int old_KeyTyped = KeyTyped; /* getting file may reset it */ + int old_KeyTyped = KeyTyped; // getting file may reset it #endif int retval = OK; @@ -3113,96 +3220,44 @@ qf_jump(qf_info_T *qi, old_qf_ptr = qf_ptr; qf_index = qfl->qf_index; old_qf_index = qf_index; - if (dir != 0) /* next/prev valid entry */ + + qf_ptr = qf_get_entry(qfl, errornr, dir, &qf_index); + if (qf_ptr == NULL) { - qf_ptr = get_nth_valid_entry(qfl, errornr, qf_ptr, &qf_index, dir); - if (qf_ptr == NULL) - { - qf_ptr = old_qf_ptr; - qf_index = old_qf_index; - goto theend; - } + qf_ptr = old_qf_ptr; + qf_index = old_qf_index; + goto theend; } - else if (errornr != 0) /* go to specified number */ - qf_ptr = get_nth_entry(qfl, errornr, qf_ptr, &qf_index); qfl->qf_index = qf_index; if (qf_win_pos_update(qi, old_qf_index)) - /* No need to print the error message if it's visible in the error - * window */ + // No need to print the error message if it's visible in the error + // window print_message = FALSE; - /* - * For ":helpgrep" find a help window or open one. - */ - if (qf_ptr->qf_type == 1 && (!bt_help(curwin->w_buffer) || cmdmod.tab != 0)) - if (jump_to_help_window(qi, &opened_window) == FAIL) - goto theend; - - /* - * If currently in the quickfix window, find another window to show the - * file in. - */ - if (bt_quickfix(curbuf) && !opened_window) - { - /* - * If there is no file specified, we don't know where to go. - * But do advance, otherwise ":cn" gets stuck. - */ - if (qf_ptr->qf_fnum == 0) - goto theend; - - if (qf_jump_to_usable_window(qf_ptr->qf_fnum, &opened_window) == FAIL) - goto failed; - } - - /* - * If there is a file name, - * read the wanted file if needed, and check autowrite etc. - */ - old_curbuf = curbuf; - old_lnum = curwin->w_cursor.lnum; + retval = qf_jump_open_window(qi, qf_ptr, &opened_window); + if (retval == FAIL) + goto failed; + if (retval == NOTDONE) + goto theend; - if (qf_ptr->qf_fnum != 0) + retval = qf_jump_to_buffer(qi, qf_index, qf_ptr, forceit, oldwin, + &opened_window, old_KeyTyped, print_message); + if (retval == NOTDONE) { - int abort = FALSE; - - retval = qf_jump_edit_buffer(qi, qf_ptr, forceit, oldwin, - &opened_window, &abort); - if (abort) - { - qi = NULL; - qf_ptr = NULL; - } + // Quickfix/location list is freed by an autocmd + qi = NULL; + qf_ptr = NULL; } - if (retval == OK) - { - /* When not switched to another buffer, still need to set pc mark */ - if (curbuf == old_curbuf) - setpcmark(); - - if (qf_ptr != NULL) - qf_jump_goto_line(qf_ptr->qf_lnum, qf_ptr->qf_col, - qf_ptr->qf_viscol, qf_ptr->qf_pattern); - -#ifdef FEAT_FOLDING - if ((fdo_flags & FDO_QUICKFIX) && old_KeyTyped) - foldOpenCursor(); -#endif - if (print_message) - qf_jump_print_msg(qi, qf_index, qf_ptr, old_curbuf, old_lnum); - } - else + if (retval != OK) { if (opened_window) - win_close(curwin, TRUE); /* Close opened window */ + win_close(curwin, TRUE); // Close opened window if (qf_ptr != NULL && qf_ptr->qf_fnum != 0) { - /* - * Couldn't open file, so put index back where it was. This could - * happen if the file was readonly and we changed something. - */ + // Couldn't open file, so put index back where it was. This could + // happen if the file was readonly and we changed something. failed: qf_ptr = old_qf_ptr; qf_index = old_qf_index; @@ -3216,8 +3271,8 @@ theend: } if (p_swb != old_swb && opened_window) { - /* Restore old 'switchbuf' value, but not when an autocommand or - * modeline has changed the value. */ + // Restore old 'switchbuf' value, but not when an autocommand or + // modeline has changed the value. if (p_swb == empty_option) { p_swb = old_swb; |