mirror of
https://github.com/jart/cosmopolitan.git
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76 lines
3.2 KiB
C
76 lines
3.2 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2022 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "tool/plinko/lib/config.h"
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#include "tool/plinko/lib/cons.h"
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#include "tool/plinko/lib/error.h"
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#include "tool/plinko/lib/gc.h"
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#include "tool/plinko/lib/index.h"
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#include "tool/plinko/lib/plinko.h"
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#include "tool/plinko/lib/printf.h"
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#include "tool/plinko/lib/stack.h"
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static void CheckClosureFullyDefined(int e, int a, int s) {
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int f;
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Push(e);
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if (e >= 0) {
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if (!IsPrecious(e) && !HasAtom(e, s) && !Assoc(e, a)) {
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Error("crash binding in closure");
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}
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} else if ((f = Car(e)) != kQuote && f != kClosure) {
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if (f == kLambda || f == kMacro) {
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CheckClosureFullyDefined(Caddr(e), a, Cons(Cadr(e), s));
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} else if (f == kCond) {
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while ((e = Cdr(e)) < 0) {
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if ((f = Car(e)) < 0) {
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CheckClosureFullyDefined(Car(f), a, s);
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if ((f = Cdr(f)) < 0) {
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CheckClosureFullyDefined(Car(f), a, s);
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}
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}
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}
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} else {
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do {
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if (e < 0) {
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CheckClosureFullyDefined(Car(e), a, s);
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e = Cdr(e);
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} else {
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CheckClosureFullyDefined(e, a, s);
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e = 0;
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}
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} while (e);
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}
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}
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Pop();
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}
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static void CheckClosure(int e, int a) {
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int A;
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if (DEBUG_CLOSURE && logc) {
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A = cx;
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CheckClosureFullyDefined(e, a, 0);
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MarkSweep(A, 0);
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}
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}
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int Enclose(int e, int a) {
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int x;
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dword w;
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CheckClosure(e, a);
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return Cons(kClosure, Cons(e, a));
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}
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