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command queue handling in getobj, yn_function

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Mostly attempting to clean up potential error handling but I don't
have any error cases to test with.  Doesn't seem to break anything
when there aren't any errors....
This commit is contained in:
PatR
2022-04-19 13:53:40 -07:00
parent 2356690054
commit 5489b3ebd9
2 changed files with 51 additions and 35 deletions
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67
src/invent.c
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@@ -1489,9 +1489,10 @@ any_obj_ok(struct obj *obj)
* case.
*/
struct obj *
getobj(const char *word,
int (*obj_ok)(OBJ_P), /* callback */
unsigned int ctrlflags)
getobj(
const char *word, /* usually a direct verb such as "drop" */
int (*obj_ok)(OBJ_P), /* callback to classify an object's suitability */
unsigned int ctrlflags) /* some control to fine-tune the behavior */
{
register struct obj *otmp;
register char ilet = 0;
@@ -1504,41 +1505,47 @@ getobj(const char *word,
allownone = FALSE;
int inaccess = 0; /* counts GETOBJ_EXCLUDE_INACCESS items to decide
* between "you don't have anything to <foo>"
* versus "you don't have anything _else_ to <foo>" */
* versus "you don't have anything _else_ to <foo>"
* (also used for GETOBJ_EXCLUDE_NONINVENT) */
long cnt;
boolean cntgiven = FALSE;
boolean msggiven = FALSE;
boolean oneloop = FALSE;
Loot *sortedinvent, *srtinv;
struct _cmd_queue cq, *cmdq;
struct _cmd_queue *cmdq = cmdq_pop();
if ((cmdq = cmdq_pop()) != 0) {
cq = *cmdq;
free(cmdq);
/* user-input means pick something interactively now, with more
in the command queue for after that; if not user-input, it
has to be a key here */
if (cq.typ != CMDQ_USER_INPUT) {
otmp = 0; /* in case of non-key or lookup failure */
if (cq.typ == CMDQ_KEY) {
int v;
if (cmdq && cmdq->typ != CMDQ_USER_INPUT) {
int v;
/* it's not a key, abort */
if (cmdq->typ != CMDQ_KEY) {
free(cmdq);
return (struct obj *) 0;
}
for (otmp = g.invent; otmp; otmp = otmp->nobj)
if (otmp->invlet == cmdq->key) {
v = (*obj_ok)(otmp);
if (v == GETOBJ_SUGGEST || v == GETOBJ_DOWNPLAY)
break;
if (cq.key == '-') {
/* check whether the hands/self choice is suitable */
v = (*obj_ok)((struct obj *) 0);
if (v == GETOBJ_SUGGEST || v == GETOBJ_DOWNPLAY)
otmp = (struct obj *) &cg.zeroobj;
} else {
/* there could be more than one match if key is '#';
take first one which passes the obj_ok callback */
for (otmp = g.invent; otmp; otmp = otmp->nobj)
if (otmp->invlet == cq.key) {
v = (*obj_ok)(otmp);
if (v == GETOBJ_SUGGEST || v == GETOBJ_DOWNPLAY)
break;
}
}
}
if (!otmp) {
v = (*obj_ok)((struct obj *) 0);
if (v == GETOBJ_SUGGEST || v == GETOBJ_DOWNPLAY)
otmp = (struct obj *) &cg.zeroobj; /* cast away const */
}
free(cmdq);
if (!otmp)
cmdq_clear();
return otmp;
}
if (cmdq)
free(cmdq);
if (!otmp) /* didn't find what we were looking for, */
cmdq_clear(); /* so discard any other queued commands */
return otmp;
} /* !CMDQ_USER_INPUT */
} /* cmdq */
/* is "hands"/"self" a valid thing to do this action on? */
switch ((*obj_ok)((struct obj *) 0)) {