_ Git - ldk-c-bindings/blob - lightning-c-bindings/src/lightning_invoice/utils.rs

   1 // This file is Copyright its original authors, visible in version control
   2 // history and in the source files from which this was generated.
   3 //
   4 // This file is licensed under the license available in the LICENSE or LICENSE.md
   5 // file in the root of this repository or, if no such file exists, the same
   6 // license as that which applies to the original source files from which this
   7 // source was automatically generated.
   8
   9 //! Convenient utilities to create an invoice.
  10
  11 use alloc::str::FromStr;
  12 use core::ffi::c_void;
  13 use core::convert::Infallible;
  14 use bitcoin::hashes::Hash;
  15 use crate::c_types::*;
  16 #[cfg(feature="no-std")]
  17 use alloc::{vec::Vec, boxed::Box};
  18
  19 /// Utility to create an invoice that can be paid to one of multiple nodes, or a \"phantom invoice.\"
  20 /// See [`PhantomKeysManager`] for more information on phantom node payments.
  21 ///
  22 /// `phantom_route_hints` parameter:
  23 /// * Contains channel info for all nodes participating in the phantom invoice
  24 /// * Entries are retrieved from a call to [`ChannelManager::get_phantom_route_hints`] on each
  25 ///   participating node
  26 /// * It is fine to cache `phantom_route_hints` and reuse it across invoices, as long as the data is
  27 ///   updated when a channel becomes disabled or closes
  28 /// * Note that if too many channels are included in [`PhantomRouteHints::channels`], the invoice
  29 ///   may be too long for QR code scanning. To fix this, `PhantomRouteHints::channels` may be pared
  30 ///   down
  31 ///
  32 /// `payment_hash` can be specified if you have a specific need for a custom payment hash (see the difference
  33 /// between [`ChannelManager::create_inbound_payment`] and [`ChannelManager::create_inbound_payment_for_hash`]).
  34 /// If `None` is provided for `payment_hash`, then one will be created.
  35 ///
  36 /// `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
  37 /// in excess of the current time.
  38 ///
  39 /// `duration_since_epoch` is the current time since epoch in seconds.
  40 ///
  41 /// You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
  42 /// [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`] - 3.
  43 /// Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
  44 /// confirmations during routing.
  45 ///
  46 /// Note that the provided `keys_manager`'s `NodeSigner` implementation must support phantom
  47 /// invoices in its `sign_invoice` implementation ([`PhantomKeysManager`] satisfies this
  48 /// requirement).
  49 ///
  50 /// [`PhantomKeysManager`]: lightning::sign::PhantomKeysManager
  51 /// [`ChannelManager::get_phantom_route_hints`]: lightning::ln::channelmanager::ChannelManager::get_phantom_route_hints
  52 /// [`ChannelManager::create_inbound_payment`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment
  53 /// [`ChannelManager::create_inbound_payment_for_hash`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash
  54 /// [`PhantomRouteHints::channels`]: lightning::ln::channelmanager::PhantomRouteHints::channels
  55 /// [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
  56 ///
  57 /// This can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
  58 /// available and the current time is supplied by the caller.
  59 #[no_mangle]
  60 pub extern "C" fn create_phantom_invoice(mut amt_msat: crate::c_types::derived::COption_u64Z, mut payment_hash: crate::c_types::derived::COption_PaymentHashZ, mut description: crate::c_types::Str, mut invoice_expiry_delta_secs: u32, mut phantom_route_hints: crate::c_types::derived::CVec_PhantomRouteHintsZ, mut entropy_source: crate::lightning::sign::EntropySource, mut node_signer: crate::lightning::sign::NodeSigner, mut logger: crate::lightning::util::logger::Logger, mut network: crate::lightning_invoice::Currency, mut min_final_cltv_expiry_delta: crate::c_types::derived::COption_u16Z, mut duration_since_epoch: u64) -> crate::c_types::derived::CResult_Bolt11InvoiceSignOrCreationErrorZ {
  61         let mut local_amt_msat = if amt_msat.is_some() { Some( { amt_msat.take() }) } else { None };
  62         let mut local_payment_hash = { /*payment_hash*/ let payment_hash_opt = payment_hash; if payment_hash_opt.is_none() { None } else { Some({ { ::lightning::ln::PaymentHash({ payment_hash_opt.take() }.data) }})} };
  63         let mut local_phantom_route_hints = Vec::new(); for mut item in phantom_route_hints.into_rust().drain(..) { local_phantom_route_hints.push( { *unsafe { Box::from_raw(item.take_inner()) } }); };
  64         let mut local_min_final_cltv_expiry_delta = if min_final_cltv_expiry_delta.is_some() { Some( { min_final_cltv_expiry_delta.take() }) } else { None };
  65         let mut ret = lightning_invoice::utils::create_phantom_invoice::<crate::lightning::sign::EntropySource, crate::lightning::sign::NodeSigner, crate::lightning::util::logger::Logger>(local_amt_msat, local_payment_hash, description.into_string(), invoice_expiry_delta_secs, local_phantom_route_hints, entropy_source, node_signer, logger, network.into_native(), local_min_final_cltv_expiry_delta, core::time::Duration::from_secs(duration_since_epoch));
  66         let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning_invoice::Bolt11Invoice { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning_invoice::SignOrCreationError::native_into(e) }).into() };
  67         local_ret
  68 }
  69
  70 /// Utility to create an invoice that can be paid to one of multiple nodes, or a \"phantom invoice.\"
  71 /// See [`PhantomKeysManager`] for more information on phantom node payments.
  72 ///
  73 /// `phantom_route_hints` parameter:
  74 /// * Contains channel info for all nodes participating in the phantom invoice
  75 /// * Entries are retrieved from a call to [`ChannelManager::get_phantom_route_hints`] on each
  76 ///   participating node
  77 /// * It is fine to cache `phantom_route_hints` and reuse it across invoices, as long as the data is
  78 ///   updated when a channel becomes disabled or closes
  79 /// * Note that the route hints generated from `phantom_route_hints` will be limited to a maximum
  80 ///   of 3 hints to ensure that the invoice can be scanned in a QR code. These hints are selected
  81 ///   in the order that the nodes in `PhantomRouteHints` are specified, selecting one hint per node
  82 ///   until the maximum is hit. Callers may provide as many `PhantomRouteHints::channels` as
  83 ///   desired, but note that some nodes will be trimmed if more than 3 nodes are provided.
  84 ///
  85 /// `description_hash` is a SHA-256 hash of the description text
  86 ///
  87 /// `payment_hash` can be specified if you have a specific need for a custom payment hash (see the difference
  88 /// between [`ChannelManager::create_inbound_payment`] and [`ChannelManager::create_inbound_payment_for_hash`]).
  89 /// If `None` is provided for `payment_hash`, then one will be created.
  90 ///
  91 /// `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
  92 /// in excess of the current time.
  93 ///
  94 /// `duration_since_epoch` is the current time since epoch in seconds.
  95 ///
  96 /// Note that the provided `keys_manager`'s `NodeSigner` implementation must support phantom
  97 /// invoices in its `sign_invoice` implementation ([`PhantomKeysManager`] satisfies this
  98 /// requirement).
  99 ///
 100 /// [`PhantomKeysManager`]: lightning::sign::PhantomKeysManager
 101 /// [`ChannelManager::get_phantom_route_hints`]: lightning::ln::channelmanager::ChannelManager::get_phantom_route_hints
 102 /// [`ChannelManager::create_inbound_payment`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment
 103 /// [`ChannelManager::create_inbound_payment_for_hash`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash
 104 /// [`PhantomRouteHints::channels`]: lightning::ln::channelmanager::PhantomRouteHints::channels
 105 ///
 106 /// This can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
 107 /// available and the current time is supplied by the caller.
 108 #[no_mangle]
 109 pub extern "C" fn create_phantom_invoice_with_description_hash(mut amt_msat: crate::c_types::derived::COption_u64Z, mut payment_hash: crate::c_types::derived::COption_PaymentHashZ, mut invoice_expiry_delta_secs: u32, mut description_hash: crate::lightning_invoice::Sha256, mut phantom_route_hints: crate::c_types::derived::CVec_PhantomRouteHintsZ, mut entropy_source: crate::lightning::sign::EntropySource, mut node_signer: crate::lightning::sign::NodeSigner, mut logger: crate::lightning::util::logger::Logger, mut network: crate::lightning_invoice::Currency, mut min_final_cltv_expiry_delta: crate::c_types::derived::COption_u16Z, mut duration_since_epoch: u64) -> crate::c_types::derived::CResult_Bolt11InvoiceSignOrCreationErrorZ {
 110         let mut local_amt_msat = if amt_msat.is_some() { Some( { amt_msat.take() }) } else { None };
 111         let mut local_payment_hash = { /*payment_hash*/ let payment_hash_opt = payment_hash; if payment_hash_opt.is_none() { None } else { Some({ { ::lightning::ln::PaymentHash({ payment_hash_opt.take() }.data) }})} };
 112         let mut local_phantom_route_hints = Vec::new(); for mut item in phantom_route_hints.into_rust().drain(..) { local_phantom_route_hints.push( { *unsafe { Box::from_raw(item.take_inner()) } }); };
 113         let mut local_min_final_cltv_expiry_delta = if min_final_cltv_expiry_delta.is_some() { Some( { min_final_cltv_expiry_delta.take() }) } else { None };
 114         let mut ret = lightning_invoice::utils::create_phantom_invoice_with_description_hash::<crate::lightning::sign::EntropySource, crate::lightning::sign::NodeSigner, crate::lightning::util::logger::Logger>(local_amt_msat, local_payment_hash, invoice_expiry_delta_secs, *unsafe { Box::from_raw(description_hash.take_inner()) }, local_phantom_route_hints, entropy_source, node_signer, logger, network.into_native(), local_min_final_cltv_expiry_delta, core::time::Duration::from_secs(duration_since_epoch));
 115         let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning_invoice::Bolt11Invoice { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning_invoice::SignOrCreationError::native_into(e) }).into() };
 116         local_ret
 117 }
 118
 119 /// Utility to construct an invoice. Generally, unless you want to do something like a custom
 120 /// cltv_expiry, this is what you should be using to create an invoice. The reason being, this
 121 /// method stores the invoice's payment secret and preimage in `ChannelManager`, so (a) the user
 122 /// doesn't have to store preimage/payment secret information and (b) `ChannelManager` can verify
 123 /// that the payment secret is valid when the invoice is paid.
 124 ///
 125 /// `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
 126 /// in excess of the current time.
 127 ///
 128 /// You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
 129 /// [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`].
 130 /// Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
 131 /// confirmations during routing.
 132 ///
 133 /// [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
 134 #[no_mangle]
 135 pub extern "C" fn create_invoice_from_channelmanager(channelmanager: &crate::lightning::ln::channelmanager::ChannelManager, mut node_signer: crate::lightning::sign::NodeSigner, mut logger: crate::lightning::util::logger::Logger, mut network: crate::lightning_invoice::Currency, mut amt_msat: crate::c_types::derived::COption_u64Z, mut description: crate::c_types::Str, mut invoice_expiry_delta_secs: u32, mut min_final_cltv_expiry_delta: crate::c_types::derived::COption_u16Z) -> crate::c_types::derived::CResult_Bolt11InvoiceSignOrCreationErrorZ {
 136         let mut local_amt_msat = if amt_msat.is_some() { Some( { amt_msat.take() }) } else { None };
 137         let mut local_min_final_cltv_expiry_delta = if min_final_cltv_expiry_delta.is_some() { Some( { min_final_cltv_expiry_delta.take() }) } else { None };
 138         let mut ret = lightning_invoice::utils::create_invoice_from_channelmanager::<crate::lightning::chain::Watch, crate::lightning::chain::chaininterface::BroadcasterInterface, crate::lightning::sign::EntropySource, crate::lightning::sign::NodeSigner, crate::lightning::sign::SignerProvider, crate::lightning::chain::chaininterface::FeeEstimator, crate::lightning::routing::router::Router, crate::lightning::util::logger::Logger>(channelmanager.get_native_ref(), node_signer, logger, network.into_native(), local_amt_msat, description.into_string(), invoice_expiry_delta_secs, local_min_final_cltv_expiry_delta);
 139         let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning_invoice::Bolt11Invoice { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning_invoice::SignOrCreationError::native_into(e) }).into() };
 140         local_ret
 141 }
 142
 143 /// Utility to construct an invoice. Generally, unless you want to do something like a custom
 144 /// cltv_expiry, this is what you should be using to create an invoice. The reason being, this
 145 /// method stores the invoice's payment secret and preimage in `ChannelManager`, so (a) the user
 146 /// doesn't have to store preimage/payment secret information and (b) `ChannelManager` can verify
 147 /// that the payment secret is valid when the invoice is paid.
 148 /// Use this variant if you want to pass the `description_hash` to the invoice.
 149 ///
 150 /// `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
 151 /// in excess of the current time.
 152 ///
 153 /// You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
 154 /// [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`].
 155 /// Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
 156 /// confirmations during routing.
 157 ///
 158 /// [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
 159 #[no_mangle]
 160 pub extern "C" fn create_invoice_from_channelmanager_with_description_hash(channelmanager: &crate::lightning::ln::channelmanager::ChannelManager, mut node_signer: crate::lightning::sign::NodeSigner, mut logger: crate::lightning::util::logger::Logger, mut network: crate::lightning_invoice::Currency, mut amt_msat: crate::c_types::derived::COption_u64Z, mut description_hash: crate::lightning_invoice::Sha256, mut invoice_expiry_delta_secs: u32, mut min_final_cltv_expiry_delta: crate::c_types::derived::COption_u16Z) -> crate::c_types::derived::CResult_Bolt11InvoiceSignOrCreationErrorZ {
 161         let mut local_amt_msat = if amt_msat.is_some() { Some( { amt_msat.take() }) } else { None };
 162         let mut local_min_final_cltv_expiry_delta = if min_final_cltv_expiry_delta.is_some() { Some( { min_final_cltv_expiry_delta.take() }) } else { None };
 163         let mut ret = lightning_invoice::utils::create_invoice_from_channelmanager_with_description_hash::<crate::lightning::chain::Watch, crate::lightning::chain::chaininterface::BroadcasterInterface, crate::lightning::sign::EntropySource, crate::lightning::sign::NodeSigner, crate::lightning::sign::SignerProvider, crate::lightning::chain::chaininterface::FeeEstimator, crate::lightning::routing::router::Router, crate::lightning::util::logger::Logger>(channelmanager.get_native_ref(), node_signer, logger, network.into_native(), local_amt_msat, *unsafe { Box::from_raw(description_hash.take_inner()) }, invoice_expiry_delta_secs, local_min_final_cltv_expiry_delta);
 164         let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning_invoice::Bolt11Invoice { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning_invoice::SignOrCreationError::native_into(e) }).into() };
 165         local_ret
 166 }
 167
 168 /// See [`create_invoice_from_channelmanager_with_description_hash`]
 169 /// This version can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
 170 /// available and the current time is supplied by the caller.
 171 #[no_mangle]
 172 pub extern "C" fn create_invoice_from_channelmanager_with_description_hash_and_duration_since_epoch(channelmanager: &crate::lightning::ln::channelmanager::ChannelManager, mut node_signer: crate::lightning::sign::NodeSigner, mut logger: crate::lightning::util::logger::Logger, mut network: crate::lightning_invoice::Currency, mut amt_msat: crate::c_types::derived::COption_u64Z, mut description_hash: crate::lightning_invoice::Sha256, mut duration_since_epoch: u64, mut invoice_expiry_delta_secs: u32, mut min_final_cltv_expiry_delta: crate::c_types::derived::COption_u16Z) -> crate::c_types::derived::CResult_Bolt11InvoiceSignOrCreationErrorZ {
 173         let mut local_amt_msat = if amt_msat.is_some() { Some( { amt_msat.take() }) } else { None };
 174         let mut local_min_final_cltv_expiry_delta = if min_final_cltv_expiry_delta.is_some() { Some( { min_final_cltv_expiry_delta.take() }) } else { None };
 175         let mut ret = lightning_invoice::utils::create_invoice_from_channelmanager_with_description_hash_and_duration_since_epoch::<crate::lightning::chain::Watch, crate::lightning::chain::chaininterface::BroadcasterInterface, crate::lightning::sign::EntropySource, crate::lightning::sign::NodeSigner, crate::lightning::sign::SignerProvider, crate::lightning::chain::chaininterface::FeeEstimator, crate::lightning::routing::router::Router, crate::lightning::util::logger::Logger>(channelmanager.get_native_ref(), node_signer, logger, network.into_native(), local_amt_msat, *unsafe { Box::from_raw(description_hash.take_inner()) }, core::time::Duration::from_secs(duration_since_epoch), invoice_expiry_delta_secs, local_min_final_cltv_expiry_delta);
 176         let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning_invoice::Bolt11Invoice { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning_invoice::SignOrCreationError::native_into(e) }).into() };
 177         local_ret
 178 }
 179
 180 /// See [`create_invoice_from_channelmanager`]
 181 /// This version can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
 182 /// available and the current time is supplied by the caller.
 183 #[no_mangle]
 184 pub extern "C" fn create_invoice_from_channelmanager_and_duration_since_epoch(channelmanager: &crate::lightning::ln::channelmanager::ChannelManager, mut node_signer: crate::lightning::sign::NodeSigner, mut logger: crate::lightning::util::logger::Logger, mut network: crate::lightning_invoice::Currency, mut amt_msat: crate::c_types::derived::COption_u64Z, mut description: crate::c_types::Str, mut duration_since_epoch: u64, mut invoice_expiry_delta_secs: u32, mut min_final_cltv_expiry_delta: crate::c_types::derived::COption_u16Z) -> crate::c_types::derived::CResult_Bolt11InvoiceSignOrCreationErrorZ {
 185         let mut local_amt_msat = if amt_msat.is_some() { Some( { amt_msat.take() }) } else { None };
 186         let mut local_min_final_cltv_expiry_delta = if min_final_cltv_expiry_delta.is_some() { Some( { min_final_cltv_expiry_delta.take() }) } else { None };
 187         let mut ret = lightning_invoice::utils::create_invoice_from_channelmanager_and_duration_since_epoch::<crate::lightning::chain::Watch, crate::lightning::chain::chaininterface::BroadcasterInterface, crate::lightning::sign::EntropySource, crate::lightning::sign::NodeSigner, crate::lightning::sign::SignerProvider, crate::lightning::chain::chaininterface::FeeEstimator, crate::lightning::routing::router::Router, crate::lightning::util::logger::Logger>(channelmanager.get_native_ref(), node_signer, logger, network.into_native(), local_amt_msat, description.into_string(), core::time::Duration::from_secs(duration_since_epoch), invoice_expiry_delta_secs, local_min_final_cltv_expiry_delta);
 188         let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning_invoice::Bolt11Invoice { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning_invoice::SignOrCreationError::native_into(e) }).into() };
 189         local_ret
 190 }
 191
 192 /// See [`create_invoice_from_channelmanager_and_duration_since_epoch`]
 193 /// This version allows for providing a custom [`PaymentHash`] for the invoice.
 194 /// This may be useful if you're building an on-chain swap or involving another protocol where
 195 /// the payment hash is also involved outside the scope of lightning.
 196 #[no_mangle]
 197 pub extern "C" fn create_invoice_from_channelmanager_and_duration_since_epoch_with_payment_hash(channelmanager: &crate::lightning::ln::channelmanager::ChannelManager, mut node_signer: crate::lightning::sign::NodeSigner, mut logger: crate::lightning::util::logger::Logger, mut network: crate::lightning_invoice::Currency, mut amt_msat: crate::c_types::derived::COption_u64Z, mut description: crate::c_types::Str, mut duration_since_epoch: u64, mut invoice_expiry_delta_secs: u32, mut payment_hash: crate::c_types::ThirtyTwoBytes, mut min_final_cltv_expiry_delta: crate::c_types::derived::COption_u16Z) -> crate::c_types::derived::CResult_Bolt11InvoiceSignOrCreationErrorZ {
 198         let mut local_amt_msat = if amt_msat.is_some() { Some( { amt_msat.take() }) } else { None };
 199         let mut local_min_final_cltv_expiry_delta = if min_final_cltv_expiry_delta.is_some() { Some( { min_final_cltv_expiry_delta.take() }) } else { None };
 200         let mut ret = lightning_invoice::utils::create_invoice_from_channelmanager_and_duration_since_epoch_with_payment_hash::<crate::lightning::chain::Watch, crate::lightning::chain::chaininterface::BroadcasterInterface, crate::lightning::sign::EntropySource, crate::lightning::sign::NodeSigner, crate::lightning::sign::SignerProvider, crate::lightning::chain::chaininterface::FeeEstimator, crate::lightning::routing::router::Router, crate::lightning::util::logger::Logger>(channelmanager.get_native_ref(), node_signer, logger, network.into_native(), local_amt_msat, description.into_string(), core::time::Duration::from_secs(duration_since_epoch), invoice_expiry_delta_secs, ::lightning::ln::PaymentHash(payment_hash.data), local_min_final_cltv_expiry_delta);
 201         let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning_invoice::Bolt11Invoice { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning_invoice::SignOrCreationError::native_into(e) }).into() };
 202         local_ret
 203 }
 204