push.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_PUSH: {
 Value v = pop_value(vm);
 Value arr = pop_value(vm);
 if (arr.type != VAL_ARRAY) {
 fprintf(stderr, "Runtime type error: ARR_PUSH expects array\n");
 exit(1);
 }
 int n = array_push(&arr, v);
 if (n < 0) {
 fprintf(stderr, "Runtime error: push failed (OOM?)\n");
 exit(1);
 }
 free_value(arr);
 push_value(vm, make_int(n));
 break;
}