parse.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_PARSE */
case OP_JSON_PARSE: {
#ifdef FUN_WITH_JSON
 Value text = pop_value(vm);
 char *s = value_to_string_alloc(&text);
 free_value(text);
 if (!s) {
 push_value(vm, make_nil());
 break;
 }
 struct json_tokener *tok = json_tokener_new();
 json_object *root = json_tokener_parse_ex(tok, s, (int)strlen(s));
 enum json_tokener_error jerr = json_tokener_get_error(tok);
 json_tokener_free(tok);
 free(s);
 if (jerr != json_tokener_success) {
 push_value(vm, make_nil());
 } else {
 Value v = json_to_fun(root);
 push_value(vm, v);
 json_object_put(root);
 }
#else
 /* Fallback when JSON is disabled: consume arg, push Nil */
 Value drop = pop_value(vm);
 free_value(drop);
 push_value(vm, make_nil());
#endif
 break;
}