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fun/src/vm/ini/save.c

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C

/*
* 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
*/
/**
* @file save.c
* @brief VM opcode snippet for saving an INI dictionary to a file (OP_INI_SAVE).
*
* Opcode: OP_INI_SAVE
* Stack: [path:string] [handle:int] -> [ok:int]
*
* Behavior
* - Pops a path and a handle. If the handle is valid, opens the path for
* writing and dumps the dictionary in INI format. Pushes 1 on success,
* otherwise 0.
*
* Errors
* - Failing fopen() or invalid handle simply return 0; no exception is thrown.
*/
/* OP_INI_SAVE */
#ifdef FUN_WITH_INI
case OP_INI_SAVE: {
Value vpath = pop_value(vm);
Value vh = pop_value(vm);
const char *path = (vpath.type == VAL_STRING) ? vpath.s : NULL;
dictionary *d = ini_get((vh.type == VAL_INT) ? (int)vh.i : 0);
int ok = 0;
if (d && path) {
FILE *f = fopen(path, "w");
if (f) {
iniparser_dump_ini(d, f);
fclose(f);
ok = 1;
}
}
free_value(vpath);
free_value(vh);
push_value(vm, make_int(ok));
break;
}
#endif