sleep_ms.c

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/*
 * This file is part of the Fun programming language.
 * https://fun-lang.xyz/
 *
 * Copyright 2025 Johannes Findeisen <you@hanez.org>
 * Licensed under the terms of the Apache-2.0 license.
 * https://opensource.org/license/apache-2-0
 */


case OP_SLEEP_MS: {
 Value ms = pop_value(vm);
 if (ms.type != VAL_INT) {
 fprintf(stderr, "Runtime type error: sleep(ms) expects Number (milliseconds)\n");
 free_value(ms);
 /* push Nil so caller-side POP is safe */
 push_value(vm, make_nil());
 break;
 }
 long t = (long)ms.i;
 if (t > 0) fun_sleep_ms(t);
 free_value(ms);
 /* push Nil so statement POP does not underflow */
 push_value(vm, make_nil());
 break;
}