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*
* 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.
* See README.txt for an overview of the Vim source code.
*/
/*
* ex_cmds2.c: some more functions for command line commands
*/
#include "vim.h"
#include "version.h"
/* Growarray to store info about already sourced scripts.
* For Unix also store the dev/ino, so that we don't have to stat() each
* script when going through the list. */
typedef struct scriptitem_S
{
char_u *sn_name;
# ifdef UNIX
ino_t sn_ino;
# endif
# ifdef FEAT_PROFILE
int sn_prof_on; /* TRUE when script is/was profiled */
int sn_pr_force; /* forceit: profile functions in this script */
proftime_T sn_pr_child; /* time set when going into first child */
int sn_pr_nest; /* nesting for sn_pr_child */
/* profiling the script as a whole */
int sn_pr_count; /* nr of times sourced */
proftime_T sn_pr_total; /* time spent in script + children */
proftime_T sn_pr_self; /* time spent in script itself */
proftime_T sn_pr_start; /* time at script start */
proftime_T sn_pr_children; /* time in children after script start */
/* profiling the script per line */
garray_T sn_prl_ga; /* things stored for every line */
proftime_T sn_prl_start; /* start time for current line */
proftime_T sn_prl_children; /* time spent in children for this line */
proftime_T sn_prl_wait; /* wait start time for current line */
int sn_prl_idx; /* index of line being timed; -1 if none */
int sn_prl_execed; /* line being timed was executed */
# endif
} scriptitem_T;
static garray_T script_items = {0, 0, sizeof(scriptitem_T), 4, NULL};
#define SCRIPT_ITEM(id) (((scriptitem_T *)script_items.ga_data)[(id) - 1])
# ifdef FEAT_PROFILE
/* Struct used in sn_prl_ga for every line of a script. */
typedef struct sn_prl_S
{
int snp_count; /* nr of times line was executed */
proftime_T sn_prl_total; /* time spent in a line + children */
proftime_T sn_prl_self; /* time spent in a line itself */
} sn_prl_T;
# define PRL_ITEM(si, idx) (((sn_prl_T *)(si)->sn_prl_ga.ga_data)[(idx)])
# endif
#endif
#if defined(FEAT_EVAL) || defined(PROTO)
static int debug_greedy = FALSE; /* batch mode debugging: don't save
and restore typeahead. */
static int get_maxbacktrace_level(void);
static void do_setdebugtracelevel(char_u *arg);
static void do_checkbacktracelevel(void);
static void do_showbacktrace(char_u *cmd);
static char_u *debug_oldval = NULL; /* old and newval for debug expressions */
static char_u *debug_newval = NULL;
static int debug_expr = 0; /* use debug_expr */
int
has_watchexpr(void)
{
return debug_expr;
}
/*
* do_debug(): Debug mode.
* Repeatedly get Ex commands, until told to continue normal execution.
*/
void
{
int save_msg_scroll = msg_scroll;
int save_State = State;
int save_did_emsg = did_emsg;
int save_cmd_silent = cmd_silent;
int save_msg_silent = msg_silent;
int save_emsg_silent = emsg_silent;
int save_redir_off = redir_off;
tasave_T typeaheadbuf;
int save_ex_normal_busy;
int n;
char_u *cmdline = NULL;
char_u *p;
char *tail = NULL;
static int last_cmd = 0;
#define CMD_CONT 1
#define CMD_NEXT 2
#define CMD_STEP 3
#define CMD_FINISH 4
#define CMD_QUIT 5
#define CMD_INTERRUPT 6
#define CMD_BACKTRACE 7
#define CMD_FRAME 8
#define CMD_UP 9
#define CMD_DOWN 10
#ifdef ALWAYS_USE_GUI
/* Can't do this when there is no terminal for input/output. */
if (!gui.in_use)
{
/* Break as soon as possible. */
debug_break_level = 9999;
return;
}
#endif
/* Make sure we are in raw mode and start termcap mode. Might have side
* effects... */
settmode(TMODE_RAW);
starttermcap();
++RedrawingDisabled; /* don't redisplay the window */
++no_wait_return; /* don't wait for return */
did_emsg = FALSE; /* don't use error from debugged stuff */
cmd_silent = FALSE; /* display commands */
msg_silent = FALSE; /* display messages */
emsg_silent = FALSE; /* display error messages */
redir_off = TRUE; /* don't redirect debug commands */
State = NORMAL;
debug_mode = TRUE;
if (!debug_did_msg)
MSG(_("Entering Debug mode. Type \"cont\" to continue."));
if (debug_oldval != NULL)
{
smsg((char_u *)_("Oldval = \"%s\""), debug_oldval);
vim_free(debug_oldval);
debug_oldval = NULL;
}
if (debug_newval != NULL)
{
smsg((char_u *)_("Newval = \"%s\""), debug_newval);
vim_free(debug_newval);
debug_newval = NULL;
}
if (sourcing_name != NULL)
msg(sourcing_name);
if (sourcing_lnum != 0)
smsg((char_u *)_("line %ld: %s"), (long)sourcing_lnum, cmd);
/*
* Repeat getting a command and executing it.
*/
for (;;)
{
msg_scroll = TRUE;
need_wait_return = FALSE;
/* Save the current typeahead buffer and replace it with an empty one.
* This makes sure we get input from the user here and don't interfere
* with the commands being executed. Reset "ex_normal_busy" to avoid
* the side effects of using ":normal". Save the stuff buffer and make
* it empty. Set ignore_script to avoid reading from script input. */
save_ex_normal_busy = ex_normal_busy;
ex_normal_busy = 0;
if (!debug_greedy)
typeahead_saved = TRUE;
save_ignore_script = ignore_script;
ignore_script = TRUE;
}
cmdline = getcmdline_prompt('>', NULL, 0, EXPAND_NOTHING, NULL);
ex_normal_busy = save_ex_normal_busy;
cmdline_row = msg_row;
if (cmdline != NULL)
{
/* If this is a debug command, set "last_cmd".
* If not, reset "last_cmd".
* For a blank line use previous command. */
p = skipwhite(cmdline);
if (*p != NUL)
{
switch (*p)
{
case 'c': last_cmd = CMD_CONT;
tail = "ont";
break;
case 'n': last_cmd = CMD_NEXT;
tail = "ext";
break;
case 's': last_cmd = CMD_STEP;
tail = "tep";
break;
case 'f':
last_cmd = 0;
if (p[1] == 'r')
{
last_cmd = CMD_FRAME;
tail = "rame";
}
else
{
last_cmd = CMD_FINISH;
tail = "inish";
}
break;
case 'q': last_cmd = CMD_QUIT;
tail = "uit";
break;
case 'i': last_cmd = CMD_INTERRUPT;
tail = "nterrupt";
break;
case 'b': last_cmd = CMD_BACKTRACE;
if (p[1] == 't')
tail = "t";
else
tail = "acktrace";
break;
case 'w': last_cmd = CMD_BACKTRACE;
tail = "here";
break;
case 'u': last_cmd = CMD_UP;
tail = "p";
break;
case 'd': last_cmd = CMD_DOWN;
tail = "own";
break;
default: last_cmd = 0;
}
if (last_cmd != 0)
{
/* Check that the tail matches. */
++p;
while (*p != NUL && *p == *tail)
{
++p;
++tail;
}
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last_cmd = 0;
}
}
if (last_cmd != 0)
{
/* Execute debug command: decided where to break next and
* return. */
switch (last_cmd)
{
case CMD_CONT:
debug_break_level = -1;
break;
case CMD_NEXT:
debug_break_level = ex_nesting_level;
break;
case CMD_STEP:
debug_break_level = 9999;
break;
case CMD_FINISH:
debug_break_level = ex_nesting_level - 1;
break;
case CMD_QUIT:
got_int = TRUE;
debug_break_level = -1;
break;
case CMD_INTERRUPT:
got_int = TRUE;
debug_break_level = 9999;
/* Do not repeat ">interrupt" cmd, continue stepping. */
last_cmd = CMD_STEP;
break;
case CMD_BACKTRACE:
do_showbacktrace(cmd);
continue;
case CMD_FRAME:
if (*p == NUL)
{
do_showbacktrace(cmd);
}
else
{
p = skipwhite(p);
do_setdebugtracelevel(p);
}
continue;
case CMD_UP:
debug_backtrace_level++;
do_checkbacktracelevel();
continue;
case CMD_DOWN:
debug_backtrace_level--;
do_checkbacktracelevel();
continue;
/* Going out reset backtrace_level */
debug_backtrace_level = 0;
break;
}
/* don't debug this command */
n = debug_break_level;
debug_break_level = -1;
(void)do_cmdline(cmdline, getexline, NULL,
DOCMD_VERBOSE|DOCMD_EXCRESET);
debug_break_level = n;
}
lines_left = Rows - 1;
}
vim_free(cmdline);
--RedrawingDisabled;
--no_wait_return;
redraw_all_later(NOT_VALID);
need_wait_return = FALSE;
msg_scroll = save_msg_scroll;
lines_left = Rows - 1;
State = save_State;
debug_mode = FALSE;
did_emsg = save_did_emsg;
cmd_silent = save_cmd_silent;
msg_silent = save_msg_silent;
emsg_silent = save_emsg_silent;
redir_off = save_redir_off;
/* Only print the message again when typing a command before coming back
* here. */
debug_did_msg = TRUE;
}
static int
get_maxbacktrace_level(void)
{
char *p, *q;
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if (sourcing_name != NULL)
{
p = (char *)sourcing_name;
while ((q = strstr(p, "..")) != NULL)
{
p = q + 2;
maxbacktrace++;
}
}
return maxbacktrace;
}
static void
do_setdebugtracelevel(char_u *arg)
{
int level;
level = atoi((char *)arg);
if (*arg == '+' || level < 0)
debug_backtrace_level += level;
else
debug_backtrace_level = level;
do_checkbacktracelevel();
}
static void
do_checkbacktracelevel(void)
{
if (debug_backtrace_level < 0)
{
debug_backtrace_level = 0;
MSG(_("frame is zero"));
}
else
{
int max = get_maxbacktrace_level();
if (debug_backtrace_level > max)
{
debug_backtrace_level = max;
smsg((char_u *)_("frame at highest level: %d"), max);
}
}
}
static void
do_showbacktrace(char_u *cmd)
{
char *cur;
char *next;
int i = 0;
int max = get_maxbacktrace_level();
if (sourcing_name != NULL)
{
cur = (char *)sourcing_name;
while (!got_int)
{
next = strstr(cur, "..");
if (next != NULL)
*next = NUL;
if (i == max - debug_backtrace_level)
smsg((char_u *)"->%d %s", max - i, cur);
else
smsg((char_u *)" %d %s", max - i, cur);
++i;
if (next == NULL)
break;
*next = '.';
cur = next + 2;
}
}
if (sourcing_lnum != 0)
smsg((char_u *)_("line %ld: %s"), (long)sourcing_lnum, cmd);
else
smsg((char_u *)_("cmd: %s"), cmd);
}
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{
int debug_break_level_save = debug_break_level;
debug_break_level = 9999;
do_cmdline_cmd(eap->arg);
debug_break_level = debug_break_level_save;
}
static char_u *debug_breakpoint_name = NULL;
static linenr_T debug_breakpoint_lnum;
/*
* When debugging or a breakpoint is set on a skipped command, no debug prompt
* is shown by do_one_cmd(). This situation is indicated by debug_skipped, and
* debug_skipped_name is then set to the source name in the breakpoint case. If
* a skipped command decides itself that a debug prompt should be displayed, it
* can do so by calling dbg_check_skipped().
*/
static int debug_skipped;
static char_u *debug_skipped_name;
/*
* Go to debug mode when a breakpoint was encountered or "ex_nesting_level" is
* at or below the break level. But only when the line is actually
* executed. Return TRUE and set breakpoint_name for skipped commands that
* decide to execute something themselves.
* Called from do_one_cmd() before executing a command.
*/
void
{
char_u *p;
debug_skipped = FALSE;
if (debug_breakpoint_name != NULL)
{
if (!eap->skip)
{
/* replace K_SNR with "<SNR>" */
if (debug_breakpoint_name[0] == K_SPECIAL
&& debug_breakpoint_name[1] == KS_EXTRA
&& debug_breakpoint_name[2] == (int)KE_SNR)
p = (char_u *)"<SNR>";
else
p = (char_u *)"";
smsg((char_u *)_("Breakpoint in \"%s%s\" line %ld"),
p,
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debug_breakpoint_name + (*p == NUL ? 0 : 3),
(long)debug_breakpoint_lnum);
debug_breakpoint_name = NULL;
do_debug(eap->cmd);
}
else
{
debug_skipped = TRUE;
debug_skipped_name = debug_breakpoint_name;
debug_breakpoint_name = NULL;
}
}
else if (ex_nesting_level <= debug_break_level)
{
if (!eap->skip)
do_debug(eap->cmd);
else
{
debug_skipped = TRUE;
debug_skipped_name = NULL;
}
}
}
/*
* Go to debug mode if skipped by dbg_check_breakpoint() because eap->skip was
* set. Return TRUE when the debug mode is entered this time.
*/
int
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{
int prev_got_int;
if (debug_skipped)
{
/*
* Save the value of got_int and reset it. We don't want a previous
* interruption cause flushing the input buffer.
*/
prev_got_int = got_int;
got_int = FALSE;
debug_breakpoint_name = debug_skipped_name;
/* eap->skip is TRUE */
eap->skip = FALSE;
(void)dbg_check_breakpoint(eap);
eap->skip = TRUE;
got_int |= prev_got_int;
return TRUE;
}
return FALSE;
}
/*
* The list of breakpoints: dbg_breakp.
* This is a grow-array of structs.
*/
struct debuggy
{
int dbg_nr; /* breakpoint number */
int dbg_type; /* DBG_FUNC, DBG_FILE or DBG_EXPR */
char_u *dbg_name; /* function, expression or file name */
regprog_T *dbg_prog; /* regexp program */
linenr_T dbg_lnum; /* line number in function or file */
#ifdef FEAT_EVAL
typval_T *dbg_val; /* last result of watchexpression */
#endif
int dbg_level; /* stored nested level for expr */
};
static garray_T dbg_breakp = {0, 0, sizeof(struct debuggy), 4, NULL};
#define BREAKP(idx) (((struct debuggy *)dbg_breakp.ga_data)[idx])
#define DEBUGGY(gap, idx) (((struct debuggy *)gap->ga_data)[idx])
static int last_breakp = 0; /* nr of last defined breakpoint */
#ifdef FEAT_PROFILE
/* Profiling uses file and func names similar to breakpoints. */
static garray_T prof_ga = {0, 0, sizeof(struct debuggy), 4, NULL};
#endif
static int dbg_parsearg(char_u *arg, garray_T *gap);
static linenr_T debuggy_find(int file,char_u *fname, linenr_T after, garray_T *gap, int *fp);
* Parse the arguments of ":profile", ":breakadd" or ":breakdel" and put them
* in the entry just after the last one in dbg_breakp. Note that "dbg_name"
* is allocated.
* Returns FAIL for failure.
*/
static int
dbg_parsearg(
char_u *arg,
garray_T *gap) /* either &dbg_breakp or &prof_ga */
{
char_u *p = arg;
char_u *q;
struct debuggy *bp;
/* Find "func" or "file". */
if (STRNCMP(p, "func", 4) == 0)
bp->dbg_type = DBG_FUNC;
else if (STRNCMP(p, "file", 4) == 0)
bp->dbg_type = DBG_FILE;
else if (
#ifdef FEAT_PROFILE
gap != &prof_ga &&
#endif
STRNCMP(p, "here", 4) == 0)
{
if (curbuf->b_ffname == NULL)
{
EMSG(_(e_noname));
return FAIL;
}
bp->dbg_type = DBG_FILE;
here = TRUE;
}
else if (
#ifdef FEAT_PROFILE
gap != &prof_ga &&
#endif
STRNCMP(p, "expr", 4) == 0)
bp->dbg_type = DBG_EXPR;
else
{
EMSG2(_(e_invarg2), p);
return FAIL;
}
p = skipwhite(p + 4);
/* Find optional line number. */
if (here)
bp->dbg_lnum = curwin->w_cursor.lnum;
else if (
#ifdef FEAT_PROFILE
gap != &prof_ga &&
#endif
VIM_ISDIGIT(*p))
{
bp->dbg_lnum = getdigits(&p);
p = skipwhite(p);
}
else
bp->dbg_lnum = 0;
/* Find the function or file name. Don't accept a function name with (). */
if ((!here && *p == NUL)
|| (here && *p != NUL)
|| (bp->dbg_type == DBG_FUNC && strstr((char *)p, "()") != NULL))
{
EMSG2(_(e_invarg2), arg);
return FAIL;
}
if (bp->dbg_type == DBG_FUNC)
bp->dbg_name = vim_strsave(p);
else if (here)
bp->dbg_name = vim_strsave(curbuf->b_ffname);
else if (bp->dbg_type == DBG_EXPR)
{
bp->dbg_name = vim_strsave(p);
if (bp->dbg_name != NULL)
bp->dbg_val = eval_expr(bp->dbg_name, NULL);
}
else
{
/* Expand the file name in the same way as do_source(). This means
* doing it twice, so that $DIR/file gets expanded when $DIR is
* "~/dir". */
q = expand_env_save(p);
if (q == NULL)
return FAIL;
p = expand_env_save(q);
vim_free(q);
if (p == NULL)
return FAIL;
if (*p != '*')
{
bp->dbg_name = fix_fname(p);
vim_free(p);
}
else
bp->dbg_name = p;
}
if (bp->dbg_name == NULL)
return FAIL;
return OK;
}
/*
* ":breakadd".
*/
void
gap = &dbg_breakp;
#ifdef FEAT_PROFILE
if (eap->cmdidx == CMD_profile)
gap = &prof_ga;
#endif
if (dbg_parsearg(eap->arg, gap) == OK)
bp = &DEBUGGY(gap, gap->ga_len);
bp->dbg_forceit = eap->forceit;
if (bp->dbg_type != DBG_EXPR)
pat = file_pat_to_reg_pat(bp->dbg_name, NULL, NULL, FALSE);
if (pat != NULL)
{
bp->dbg_prog = vim_regcomp(pat, RE_MAGIC + RE_STRING);
vim_free(pat);
}
if (pat == NULL || bp->dbg_prog == NULL)
vim_free(bp->dbg_name);
else
{
if (bp->dbg_lnum == 0) /* default line number is 1 */
bp->dbg_lnum = 1;
if (eap->cmdidx != CMD_profile)
{
DEBUGGY(gap, gap->ga_len).dbg_nr = ++last_breakp;
++debug_tick;
}
++gap->ga_len;
}
else
{
/* DBG_EXPR */
DEBUGGY(gap, gap->ga_len++).dbg_nr = ++last_breakp;
++debug_tick;
}
}
}
/*
* ":debuggreedy".
*/
void
{
if (eap->addr_count == 0 || eap->line2 != 0)
debug_greedy = TRUE;
else
debug_greedy = FALSE;
}
/*
{
struct debuggy *bp, *bpi;
int nr;
int todel = -1;
garray_T *gap;
gap = &dbg_breakp;
if (eap->cmdidx == CMD_profdel)
if (vim_isdigit(*eap->arg))
{
/* ":breakdel {nr}" */
nr = atol((char *)eap->arg);
for (i = 0; i < gap->ga_len; ++i)
if (DEBUGGY(gap, i).dbg_nr == nr)
else if (*eap->arg == '*')
{
todel = 0;
del_all = TRUE;
}
/* ":breakdel {func|file|expr} [lnum] {name}" */
bp = &DEBUGGY(gap, gap->ga_len);
for (i = 0; i < gap->ga_len; ++i)
if (bp->dbg_type == bpi->dbg_type
&& STRCMP(bp->dbg_name, bpi->dbg_name) == 0
&& (bp->dbg_lnum == bpi->dbg_lnum
|| (bp->dbg_lnum == 0
&& (best_lnum == 0
|| bpi->dbg_lnum < best_lnum))))
{
todel = i;
best_lnum = bpi->dbg_lnum;
}
}
vim_free(bp->dbg_name);
}
if (todel < 0)
EMSG2(_("E161: Breakpoint not found: %s"), eap->arg);
else
#ifdef FEAT_EVAL
if (DEBUGGY(gap, todel).dbg_type == DBG_EXPR
&& DEBUGGY(gap, todel).dbg_val != NULL)
free_tv(DEBUGGY(gap, todel).dbg_val);
#endif
vim_regfree(DEBUGGY(gap, todel).dbg_prog);
--gap->ga_len;
if (todel < gap->ga_len)
mch_memmove(&DEBUGGY(gap, todel), &DEBUGGY(gap, todel + 1),
(gap->ga_len - todel) * sizeof(struct debuggy));
#ifdef FEAT_PROFILE
if (eap->cmdidx == CMD_breakdel)
#endif
++debug_tick;
/* If all breakpoints were removed clear the array. */
if (gap->ga_len == 0)
ga_clear(gap);
}
}
/*
* ":breaklist".
*/
void
{
struct debuggy *bp;
int i;
if (dbg_breakp.ga_len == 0)
MSG(_("No breakpoints defined"));
else
for (i = 0; i < dbg_breakp.ga_len; ++i)
{
bp = &BREAKP(i);
if (bp->dbg_type == DBG_FILE)
home_replace(NULL, bp->dbg_name, NameBuff, MAXPATHL, TRUE);
if (bp->dbg_type != DBG_EXPR)
smsg((char_u *)_("%3d %s %s line %ld"),
bp->dbg_nr,
bp->dbg_type == DBG_FUNC ? "func" : "file",
bp->dbg_type == DBG_FUNC ? bp->dbg_name : NameBuff,
else
smsg((char_u *)_("%3d expr %s"),
bp->dbg_nr, bp->dbg_name);
}
}
/*
* Find a breakpoint for a function or sourced file.
* Returns line number at which to break; zero when no matching breakpoint.
*/
linenr_T
dbg_find_breakpoint(
int file, /* TRUE for a file, FALSE for a function */
char_u *fname, /* file or function name */
linenr_T after) /* after this line number */
{
return debuggy_find(file, fname, after, &dbg_breakp, NULL);
}
#if defined(FEAT_PROFILE) || defined(PROTO)
/*
* Return TRUE if profiling is on for a function or sourced file.
*/
int
has_profiling(
int file, /* TRUE for a file, FALSE for a function */
char_u *fname, /* file or function name */
int *fp) /* return: forceit */
{
return (debuggy_find(file, fname, (linenr_T)0, &prof_ga, fp)
!= (linenr_T)0);
}
#endif
/*
* Common code for dbg_find_breakpoint() and has_profiling().
*/
static linenr_T
debuggy_find(
int file, /* TRUE for a file, FALSE for a function */
char_u *fname, /* file or function name */
linenr_T after, /* after this line number */
garray_T *gap, /* either &dbg_breakp or &prof_ga */
int *fp) /* if not NULL: return forceit */
{
struct debuggy *bp;
int i;
linenr_T lnum = 0;
char_u *name = fname;
int prev_got_int;
/* Return quickly when there are no breakpoints. */
if (gap->ga_len == 0)
return (linenr_T)0;
/* Replace K_SNR in function name with "<SNR>". */
if (!file && fname[0] == K_SPECIAL)
{
name = alloc((unsigned)STRLEN(fname) + 3);
if (name == NULL)
name = fname;
else
{
STRCPY(name, "<SNR>");
STRCPY(name + 5, fname + 3);
}
}
/* Skip entries that are not useful or are for a line that is beyond
* an already found breakpoint. */
bp = &DEBUGGY(gap, i);
if (((bp->dbg_type == DBG_FILE) == file &&
bp->dbg_type != DBG_EXPR && (
#ifdef FEAT_PROFILE
gap == &prof_ga ||
#endif
(bp->dbg_lnum > after && (lnum == 0 || bp->dbg_lnum < lnum)))))
* Save the value of got_int and reset it. We don't want a
* previous interruption cancel matching, only hitting CTRL-C
* while matching should abort it.
*/
prev_got_int = got_int;
got_int = FALSE;
if (vim_regexec_prog(&bp->dbg_prog, FALSE, name, (colnr_T)0))
if (fp != NULL)
*fp = bp->dbg_forceit;
}
#ifdef FEAT_EVAL
else if (bp->dbg_type == DBG_EXPR)
{
typval_T *tv;
int line = FALSE;
prev_got_int = got_int;
got_int = FALSE;
tv = eval_expr(bp->dbg_name, NULL);
if (tv != NULL)
{
if (bp->dbg_val == NULL)
{
debug_oldval = typval_tostring(NULL);
bp->dbg_val = tv;
debug_newval = typval_tostring(bp->dbg_val);
line = TRUE;
}
else
{
if (typval_compare(tv, bp->dbg_val, TYPE_EQUAL,
TRUE, FALSE) == OK
&& tv->vval.v_number == FALSE)
typval_T *v;
line = TRUE;
debug_oldval = typval_tostring(bp->dbg_val);
/* Need to evaluate again, typval_compare() overwrites
* "tv". */