commit https://github.com/vim/vim/commit/8240433f48f7383c281ba2453cc55f10b8ec47d9 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jul 10 17:00:38 2016 +0200 patch 7.4.2017 Problem: When there are many errors adding them to the quickfix list takes a long time. Solution: Add BLN_NOOPT. Don't call buf_valid() in buf_copy_options(). Remember the last file name used. When going through the buffer list start from the end of the list. Only call buf_valid() when autocommands were executed.

/* vi:set ts=8 sts=4 sw=4:
 *
 * VIM - Vi IMproved	by Bram Moolenaar
 *
 * Do ":help uganda"  in Vim to read copying and usage conditions.
 * Do ":help credits" in Vim to see a list of people who contributed.
 */

/*
 * alloc.h: enumeration of alloc IDs.
 * Each entry must be on exactly one line, GetAllocId() depends on that.
 */
typedef enum {
	aid_none = 0,
	aid_qf_dirname_start,
	aid_qf_dirname_now,
	aid_qf_namebuf,
	aid_qf_errmsg,
	aid_qf_pattern,
	aid_last
} alloc_id_T;