stringify.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
 */


/* JSON_STRINGIFY */
case OP_JSON_STRINGIFY: {
#ifdef FUN_WITH_JSON
 Value vpretty = pop_value(vm);
 Value any = pop_value(vm);
 int pretty = (vpretty.type == VAL_BOOL || vpretty.type == VAL_INT) ? (vpretty.i != 0) : 0;
 json_object *j = fun_to_json(&any);
 int flags = pretty ? JSON_C_TO_STRING_PRETTY : JSON_C_TO_STRING_PLAIN;
 const char *js = json_object_to_json_string_ext(j, flags);
 push_value(vm, make_string(js ? js : ""));
 json_object_put(j);
 free_value(vpretty);
 free_value(any);
#else
 /* Fallback: consume two args, push "null" */
 Value vpretty = pop_value(vm);
 free_value(vpretty);
 Value any = pop_value(vm);
 free_value(any);
 push_value(vm, make_string("null"));
#endif
 break;
}