env.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_ENV: {
 Value key = pop_value(vm);
 if (key.type != VAL_STRING) {
 fprintf(stderr, "Runtime type error: ENV expects string name\n");
 free_value(key);
 exit(1);
 }
 const char *name = key.s ? key.s : "";
 const char *val = getenv(name);
 /* Return empty string if not set (consistent with read_file fallback style) */
 push_value(vm, make_string(val ? val : ""));
 free_value(key);
 break;
}