set_exit.c

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/*
 * This file is part of the Fun programming language.
 * https://fun-lang.xyz/
 *
 * Copyright 2026 Johannes Findeisen <you@hanez.org>
 * Licensed under the terms of the Apache-2.0 license.
 * https://opensource.org/license/apache-2-0
 */


case OP_RUST_SET_EXIT: {
#ifdef FUN_WITH_RUST
 extern int fun_op_rset_exit(VM * vm);
 /* Expect an integer on the stack already (produced by prior ops) */
 /* fun_op_rset_exit will pop it and store into vm.exit_code */
 int rc = fun_op_rset_exit(vm);
 (void)rc;
 /* push Nil as a conventional result */
 push_value(vm, make_nil());
#else
 /* pop and ignore to keep stack sane */
 Value v = pop_value(vm);
 free_value(v);
 vm_raise_error(vm, "RUST_SET_EXIT requires FUN_WITH_RUST=ON at build time");
 push_value(vm, make_nil());
#endif
 break;
}