cosmopolitan/tool/plinko/lib/planfuncalls.c
2022-04-07 20:30:22 -07:00

55 lines
2.6 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "tool/plinko/lib/cons.h"
#include "tool/plinko/lib/index.h"
#include "tool/plinko/lib/plinko.h"
void PlanFuncalls(int n, dword p, int x) {
int h;
if (x < 0 && (h = Car(x)) != kQuote && h != kClosure && h != kMacro) {
if (h == kLambda) {
if (!HasAtom(n, Cadr(x))) {
PlanFuncalls(n, p, Caddr(x));
}
} else if (h == kCond) {
while ((x = Cdr(x)) < 0) {
if ((h = Car(x)) < 0) {
PlanFuncalls(n, p, Car(h));
if ((h = Cdr(h)) < 0) {
PlanFuncalls(n, p, Car(h));
}
}
}
} else {
if (h == n) {
SetShadow(x, p);
}
while (x) {
if (x < 0) {
h = Car(x);
x = Cdr(x);
} else {
h = x;
x = 0;
}
PlanFuncalls(n, p, h);
}
}
}
}