Function wally_psbt_output_get_amount

bitcoin/psbt.c:1068–1100

FIXME(cdecker) Make the caller pass in a reference to amount_asset, and * return false if unintelligible/encrypted. (WARN UNUSED). */

/* FIXME(cdecker) Make the caller pass in a reference to amount_asset, and
 * return false if unintelligible/encrypted. (WARN UNUSED). */
struct amount_asset
wally_psbt_output_get_amount(const struct wally_psbt_output *output)
{
    struct amount_asset amount;
	size_t asset_out;

    if (chainparams->is_elements) {
		if (wally_psbt_output_get_asset(output, amount.asset + 1, sizeof(amount.asset) - 1, &asset_out) != WALLY_OK) {
			amount.value = 0;
			return amount;
		}
		assert(asset_out == 32);
		amount.asset[0] = 0x01; /* explicit */
        /* We currently only support explicit value
         * asset tags, others are confidential, so
         * don't even try to assign a value to it. */
        if (output->has_amount == true) {
            amount.value = output->amount;
        } else {
            amount.value = 0;
        }
    } else {
        /* Do not assign amount.asset, we should never touch it in
         * non-elements scenarios. */
		if (output->has_amount) {
        	amount.value = output->amount;
		} else {
			abort();
		}
    }

    return amount;
}

bool elements_psbt_output_is_fee(const struct wally_psbt *psbt, size_t outnum)
{