has_key.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_HAS_KEY: {
 Value key = pop_value(vm);
 Value m = pop_value(vm);
 if (m.type != VAL_MAP || key.type != VAL_STRING) {
 fprintf(stderr, "HAS_KEY expects (map, string)\n");
 exit(1);
 }
 int ok = map_has(&m, key.s ? key.s : "");
 free_value(m);
 free_value(key);
 push_value(vm, make_int(ok ? 1 : 0));
 break;
}