1 // This file is Copyright its original authors, visible in version control
2 // history and in the source files from which this was generated.
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.
9 //! Data structures and encoding for refunds.
11 //! A [`Refund`] is an \"offer for money\" and is typically constructed by a merchant and presented
12 //! directly to the customer. The recipient responds with a [`Bolt12Invoice`] to be paid.
14 //! This is an [`InvoiceRequest`] produced *not* in response to an [`Offer`].
16 //! [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
17 //! [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest
18 //! [`Offer`]: crate::offers::offer::Offer
23 //! extern crate bitcoin;
24 //! extern crate core;
25 //! extern crate lightning;
27 //! use core::convert::TryFrom;
28 //! use core::time::Duration;
30 //! use bitcoin::network::constants::Network;
31 //! use bitcoin::secp256k1::{KeyPair, PublicKey, Secp256k1, SecretKey};
32 //! use lightning::offers::parse::Bolt12ParseError;
33 //! use lightning::offers::refund::{Refund, RefundBuilder};
34 //! use lightning::util::ser::{Readable, Writeable};
36 //! # use lightning::blinded_path::BlindedPath;
37 //! # #[cfg(feature = \"std\")]
38 //! # use std::time::SystemTime;
40 //! # fn create_blinded_path() -> BlindedPath { unimplemented!() }
41 //! # fn create_another_blinded_path() -> BlindedPath { unimplemented!() }
43 //! # #[cfg(feature = \"std\")]
44 //! # fn build() -> Result<(), Bolt12ParseError> {
45 //! let secp_ctx = Secp256k1::new();
46 //! let keys = KeyPair::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
47 //! let pubkey = PublicKey::from(keys);
49 //! let expiration = SystemTime::now() + Duration::from_secs(24 * 60 * 60);
50 //! let refund = RefundBuilder::new(vec![1; 32], pubkey, 20_000)?
51 //! .description(\"coffee, large\".to_string())
52 //! .absolute_expiry(expiration.duration_since(SystemTime::UNIX_EPOCH).unwrap())
53 //! .issuer(\"Foo Bar\".to_string())
54 //! .path(create_blinded_path())
55 //! .path(create_another_blinded_path())
56 //! .chain(Network::Bitcoin)
57 //! .payer_note(\"refund for order #12345\".to_string())
60 //! // Encode as a bech32 string for use in a QR code.
61 //! let encoded_refund = refund.to_string();
63 //! // Parse from a bech32 string after scanning from a QR code.
64 //! let refund = encoded_refund.parse::<Refund>()?;
66 //! // Encode refund as raw bytes.
67 //! let mut bytes = Vec::new();
68 //! refund.write(&mut bytes).unwrap();
70 //! // Decode raw bytes into an refund.
71 //! let refund = Refund::try_from(bytes)?;
78 //! If constructing a [`Refund`] for use with a [`ChannelManager`], use
79 //! [`ChannelManager::create_refund_builder`] instead of [`RefundBuilder::new`].
81 //! [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
82 //! [`ChannelManager::create_refund_builder`]: crate::ln::channelmanager::ChannelManager::create_refund_builder
84 use alloc::str::FromStr;
85 use alloc::string::String;
86 use core::ffi::c_void;
87 use core::convert::Infallible;
88 use bitcoin::hashes::Hash;
89 use crate::c_types::*;
90 #[cfg(feature="no-std")]
91 use alloc::{vec::Vec, boxed::Box};
94 use lightning::offers::refund::RefundMaybeWithDerivedMetadataBuilder as nativeRefundMaybeWithDerivedMetadataBuilderImport;
95 pub(crate) type nativeRefundMaybeWithDerivedMetadataBuilder = nativeRefundMaybeWithDerivedMetadataBuilderImport<'static, >;
97 /// Builds a [`Refund`] for the \"offer for money\" flow.
99 /// See [module-level documentation] for usage.
101 /// [module-level documentation]: self
104 pub struct RefundMaybeWithDerivedMetadataBuilder {
105 /// A pointer to the opaque Rust object.
107 /// Nearly everywhere, inner must be non-null, however in places where
108 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
109 pub inner: *mut nativeRefundMaybeWithDerivedMetadataBuilder,
110 /// Indicates that this is the only struct which contains the same pointer.
112 /// Rust functions which take ownership of an object provided via an argument require
113 /// this to be true and invalidate the object pointed to by inner.
117 impl Drop for RefundMaybeWithDerivedMetadataBuilder {
119 if self.is_owned && !<*mut nativeRefundMaybeWithDerivedMetadataBuilder>::is_null(self.inner) {
120 let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) };
124 /// Frees any resources used by the RefundMaybeWithDerivedMetadataBuilder, if is_owned is set and inner is non-NULL.
126 pub extern "C" fn RefundMaybeWithDerivedMetadataBuilder_free(this_obj: RefundMaybeWithDerivedMetadataBuilder) { }
128 /// Used only if an object of this type is returned as a trait impl by a method
129 pub(crate) extern "C" fn RefundMaybeWithDerivedMetadataBuilder_free_void(this_ptr: *mut c_void) {
130 let _ = unsafe { Box::from_raw(this_ptr as *mut nativeRefundMaybeWithDerivedMetadataBuilder) };
133 impl RefundMaybeWithDerivedMetadataBuilder {
134 pub(crate) fn get_native_ref(&self) -> &'static nativeRefundMaybeWithDerivedMetadataBuilder {
135 unsafe { &*ObjOps::untweak_ptr(self.inner) }
137 pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeRefundMaybeWithDerivedMetadataBuilder {
138 unsafe { &mut *ObjOps::untweak_ptr(self.inner) }
140 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
141 pub(crate) fn take_inner(mut self) -> *mut nativeRefundMaybeWithDerivedMetadataBuilder {
142 assert!(self.is_owned);
143 let ret = ObjOps::untweak_ptr(self.inner);
144 self.inner = core::ptr::null_mut();
148 impl Clone for RefundMaybeWithDerivedMetadataBuilder {
149 fn clone(&self) -> Self {
151 inner: if <*mut nativeRefundMaybeWithDerivedMetadataBuilder>::is_null(self.inner) { core::ptr::null_mut() } else {
152 ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) },
158 /// Used only if an object of this type is returned as a trait impl by a method
159 pub(crate) extern "C" fn RefundMaybeWithDerivedMetadataBuilder_clone_void(this_ptr: *const c_void) -> *mut c_void {
160 Box::into_raw(Box::new(unsafe { (*(this_ptr as *const nativeRefundMaybeWithDerivedMetadataBuilder)).clone() })) as *mut c_void
163 /// Creates a copy of the RefundMaybeWithDerivedMetadataBuilder
164 pub extern "C" fn RefundMaybeWithDerivedMetadataBuilder_clone(orig: &RefundMaybeWithDerivedMetadataBuilder) -> RefundMaybeWithDerivedMetadataBuilder {
167 /// Creates a new builder for a refund using the [`Refund::payer_id`] for the public node id to
168 /// send to if no [`Refund::paths`] are set. Otherwise, it may be a transient pubkey.
170 /// Additionally, sets the required (empty) [`Refund::description`], [`Refund::payer_metadata`],
171 /// and [`Refund::amount_msats`].
175 /// If constructing a [`Refund`] for use with a [`ChannelManager`], use
176 /// [`ChannelManager::create_refund_builder`] instead of [`RefundBuilder::new`].
178 /// [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
179 /// [`ChannelManager::create_refund_builder`]: crate::ln::channelmanager::ChannelManager::create_refund_builder
182 pub extern "C" fn RefundMaybeWithDerivedMetadataBuilder_new(mut metadata: crate::c_types::derived::CVec_u8Z, mut payer_id: crate::c_types::PublicKey, mut amount_msats: u64) -> crate::c_types::derived::CResult_RefundMaybeWithDerivedMetadataBuilderBolt12SemanticErrorZ {
183 let mut local_metadata = Vec::new(); for mut item in metadata.into_rust().drain(..) { local_metadata.push( { item }); };
184 let mut ret = lightning::offers::refund::RefundMaybeWithDerivedMetadataBuilder::new(local_metadata, payer_id.into_rust(), amount_msats);
185 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::offers::refund::RefundMaybeWithDerivedMetadataBuilder { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::offers::parse::Bolt12SemanticError::native_into(e) }).into() };
189 /// Similar to [`RefundBuilder::new`] except, if [`RefundBuilder::path`] is called, the payer id
190 /// is derived from the given [`ExpandedKey`] and nonce. This provides sender privacy by using a
191 /// different payer id for each refund, assuming a different nonce is used. Otherwise, the
192 /// provided `node_id` is used for the payer id.
194 /// Also, sets the metadata when [`RefundBuilder::build`] is called such that it can be used to
195 /// verify that an [`InvoiceRequest`] was produced for the refund given an [`ExpandedKey`].
197 /// The `payment_id` is encrypted in the metadata and should be unique. This ensures that only
198 /// one invoice will be paid for the refund and that payments can be uniquely identified.
200 /// [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest
201 /// [`ExpandedKey`]: crate::ln::inbound_payment::ExpandedKey
204 pub extern "C" fn RefundMaybeWithDerivedMetadataBuilder_deriving_payer_id(mut node_id: crate::c_types::PublicKey, expanded_key: &crate::lightning::ln::inbound_payment::ExpandedKey, mut entropy_source: crate::lightning::sign::EntropySource, mut amount_msats: u64, mut payment_id: crate::c_types::ThirtyTwoBytes) -> crate::c_types::derived::CResult_RefundMaybeWithDerivedMetadataBuilderBolt12SemanticErrorZ {
205 let mut ret = lightning::offers::refund::RefundMaybeWithDerivedMetadataBuilder::deriving_payer_id(node_id.into_rust(), expanded_key.get_native_ref(), entropy_source, secp256k1::global::SECP256K1, amount_msats, ::lightning::ln::channelmanager::PaymentId(payment_id.data));
206 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::offers::refund::RefundMaybeWithDerivedMetadataBuilder { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::offers::parse::Bolt12SemanticError::native_into(e) }).into() };
210 /// Sets the [`Refund::description`].
212 /// Successive calls to this method will override the previous setting.
215 pub extern "C" fn RefundMaybeWithDerivedMetadataBuilder_description(mut this_arg: crate::lightning::offers::refund::RefundMaybeWithDerivedMetadataBuilder, mut description: crate::c_types::Str) {
216 let mut ret = (*unsafe { Box::from_raw(this_arg.take_inner()) }).description(description.into_string());
220 /// Sets the [`Refund::absolute_expiry`] as seconds since the Unix epoch. Any expiry that has
221 /// already passed is valid and can be checked for using [`Refund::is_expired`].
223 /// Successive calls to this method will override the previous setting.
226 pub extern "C" fn RefundMaybeWithDerivedMetadataBuilder_absolute_expiry(mut this_arg: crate::lightning::offers::refund::RefundMaybeWithDerivedMetadataBuilder, mut absolute_expiry: u64) {
227 let mut ret = (*unsafe { Box::from_raw(this_arg.take_inner()) }).absolute_expiry(core::time::Duration::from_secs(absolute_expiry));
231 /// Sets the [`Refund::issuer`].
233 /// Successive calls to this method will override the previous setting.
236 pub extern "C" fn RefundMaybeWithDerivedMetadataBuilder_issuer(mut this_arg: crate::lightning::offers::refund::RefundMaybeWithDerivedMetadataBuilder, mut issuer: crate::c_types::Str) {
237 let mut ret = (*unsafe { Box::from_raw(this_arg.take_inner()) }).issuer(issuer.into_string());
241 /// Adds a blinded path to [`Refund::paths`]. Must include at least one path if only connected
242 /// by private channels or if [`Refund::payer_id`] is not a public node id.
244 /// Successive calls to this method will add another blinded path. Caller is responsible for not
245 /// adding duplicate paths.
248 pub extern "C" fn RefundMaybeWithDerivedMetadataBuilder_path(mut this_arg: crate::lightning::offers::refund::RefundMaybeWithDerivedMetadataBuilder, mut path: crate::lightning::blinded_path::BlindedPath) {
249 let mut ret = (*unsafe { Box::from_raw(this_arg.take_inner()) }).path(*unsafe { Box::from_raw(path.take_inner()) });
253 /// Sets the [`Refund::chain`] of the given [`Network`] for paying an invoice. If not
254 /// called, [`Network::Bitcoin`] is assumed.
256 /// Successive calls to this method will override the previous setting.
259 pub extern "C" fn RefundMaybeWithDerivedMetadataBuilder_chain(mut this_arg: crate::lightning::offers::refund::RefundMaybeWithDerivedMetadataBuilder, mut network: crate::bitcoin::network::Network) {
260 let mut ret = (*unsafe { Box::from_raw(this_arg.take_inner()) }).chain(network.into_bitcoin());
264 /// Sets [`Refund::quantity`] of items. This is purely for informational purposes. It is useful
265 /// when the refund pertains to a [`Bolt12Invoice`] that paid for more than one item from an
266 /// [`Offer`] as specified by [`InvoiceRequest::quantity`].
268 /// Successive calls to this method will override the previous setting.
270 /// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
271 /// [`InvoiceRequest::quantity`]: crate::offers::invoice_request::InvoiceRequest::quantity
272 /// [`Offer`]: crate::offers::offer::Offer
275 pub extern "C" fn RefundMaybeWithDerivedMetadataBuilder_quantity(mut this_arg: crate::lightning::offers::refund::RefundMaybeWithDerivedMetadataBuilder, mut quantity: u64) {
276 let mut ret = (*unsafe { Box::from_raw(this_arg.take_inner()) }).quantity(quantity);
280 /// Sets the [`Refund::payer_note`].
282 /// Successive calls to this method will override the previous setting.
285 pub extern "C" fn RefundMaybeWithDerivedMetadataBuilder_payer_note(mut this_arg: crate::lightning::offers::refund::RefundMaybeWithDerivedMetadataBuilder, mut payer_note: crate::c_types::Str) {
286 let mut ret = (*unsafe { Box::from_raw(this_arg.take_inner()) }).payer_note(payer_note.into_string());
290 /// Builds a [`Refund`] after checking for valid semantics.
293 pub extern "C" fn RefundMaybeWithDerivedMetadataBuilder_build(mut this_arg: crate::lightning::offers::refund::RefundMaybeWithDerivedMetadataBuilder) -> crate::c_types::derived::CResult_RefundBolt12SemanticErrorZ {
294 let mut ret = (*unsafe { Box::from_raw(this_arg.take_inner()) }).build();
295 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::offers::refund::Refund { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::offers::parse::Bolt12SemanticError::native_into(e) }).into() };
300 use lightning::offers::refund::Refund as nativeRefundImport;
301 pub(crate) type nativeRefund = nativeRefundImport;
303 /// A `Refund` is a request to send an [`Bolt12Invoice`] without a preceding [`Offer`].
305 /// Typically, after an invoice is paid, the recipient may publish a refund allowing the sender to
306 /// recoup their funds. A refund may be used more generally as an \"offer for money\", such as with a
309 /// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
310 /// [`Offer`]: crate::offers::offer::Offer
314 /// A pointer to the opaque Rust object.
316 /// Nearly everywhere, inner must be non-null, however in places where
317 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
318 pub inner: *mut nativeRefund,
319 /// Indicates that this is the only struct which contains the same pointer.
321 /// Rust functions which take ownership of an object provided via an argument require
322 /// this to be true and invalidate the object pointed to by inner.
326 impl Drop for Refund {
328 if self.is_owned && !<*mut nativeRefund>::is_null(self.inner) {
329 let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) };
333 /// Frees any resources used by the Refund, if is_owned is set and inner is non-NULL.
335 pub extern "C" fn Refund_free(this_obj: Refund) { }
337 /// Used only if an object of this type is returned as a trait impl by a method
338 pub(crate) extern "C" fn Refund_free_void(this_ptr: *mut c_void) {
339 let _ = unsafe { Box::from_raw(this_ptr as *mut nativeRefund) };
343 pub(crate) fn get_native_ref(&self) -> &'static nativeRefund {
344 unsafe { &*ObjOps::untweak_ptr(self.inner) }
346 pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeRefund {
347 unsafe { &mut *ObjOps::untweak_ptr(self.inner) }
349 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
350 pub(crate) fn take_inner(mut self) -> *mut nativeRefund {
351 assert!(self.is_owned);
352 let ret = ObjOps::untweak_ptr(self.inner);
353 self.inner = core::ptr::null_mut();
357 impl Clone for Refund {
358 fn clone(&self) -> Self {
360 inner: if <*mut nativeRefund>::is_null(self.inner) { core::ptr::null_mut() } else {
361 ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) },
367 /// Used only if an object of this type is returned as a trait impl by a method
368 pub(crate) extern "C" fn Refund_clone_void(this_ptr: *const c_void) -> *mut c_void {
369 Box::into_raw(Box::new(unsafe { (*(this_ptr as *const nativeRefund)).clone() })) as *mut c_void
372 /// Creates a copy of the Refund
373 pub extern "C" fn Refund_clone(orig: &Refund) -> Refund {
376 /// Get a string which allows debug introspection of a Refund object
377 pub extern "C" fn Refund_debug_str_void(o: *const c_void) -> Str {
378 alloc::format!("{:?}", unsafe { o as *const crate::lightning::offers::refund::Refund }).into()}
379 /// A complete description of the purpose of the refund. Intended to be displayed to the user
380 /// but with the caveat that it has not been verified in any way.
383 pub extern "C" fn Refund_description(this_arg: &crate::lightning::offers::refund::Refund) -> crate::lightning::util::string::PrintableString {
384 let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.description();
385 crate::lightning::util::string::PrintableString { inner: ObjOps::heap_alloc(ret), is_owned: true }
388 /// Duration since the Unix epoch when an invoice should no longer be sent.
390 /// If `None`, the refund does not expire.
393 pub extern "C" fn Refund_absolute_expiry(this_arg: &crate::lightning::offers::refund::Refund) -> crate::c_types::derived::COption_u64Z {
394 let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.absolute_expiry();
395 let mut local_ret = if ret.is_none() { crate::c_types::derived::COption_u64Z::None } else { crate::c_types::derived::COption_u64Z::Some( { ret.unwrap().as_secs() }) };
399 /// Whether the refund has expired.
402 pub extern "C" fn Refund_is_expired(this_arg: &crate::lightning::offers::refund::Refund) -> bool {
403 let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.is_expired();
407 /// Whether the refund has expired given the duration since the Unix epoch.
410 pub extern "C" fn Refund_is_expired_no_std(this_arg: &crate::lightning::offers::refund::Refund, mut duration_since_epoch: u64) -> bool {
411 let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.is_expired_no_std(core::time::Duration::from_secs(duration_since_epoch));
415 /// The issuer of the refund, possibly beginning with `user@domain` or `domain`. Intended to be
416 /// displayed to the user but with the caveat that it has not been verified in any way.
418 /// Note that the return value (or a relevant inner pointer) may be NULL or all-0s to represent None
421 pub extern "C" fn Refund_issuer(this_arg: &crate::lightning::offers::refund::Refund) -> crate::lightning::util::string::PrintableString {
422 let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.issuer();
423 let mut local_ret = crate::lightning::util::string::PrintableString { inner: if ret.is_none() { core::ptr::null_mut() } else { { ObjOps::heap_alloc((ret.unwrap())) } }, is_owned: true };
427 /// Paths to the sender originating from publicly reachable nodes. Blinded paths provide sender
428 /// privacy by obfuscating its node id.
431 pub extern "C" fn Refund_paths(this_arg: &crate::lightning::offers::refund::Refund) -> crate::c_types::derived::CVec_BlindedPathZ {
432 let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.paths();
433 let mut local_ret_clone = Vec::new(); local_ret_clone.extend_from_slice(ret); let mut ret = local_ret_clone; let mut local_ret = Vec::new(); for mut item in ret.drain(..) { local_ret.push( { crate::lightning::blinded_path::BlindedPath { inner: ObjOps::heap_alloc(item), is_owned: true } }); };
437 /// An unpredictable series of bytes, typically containing information about the derivation of
440 /// [`payer_id`]: Self::payer_id
443 pub extern "C" fn Refund_payer_metadata(this_arg: &crate::lightning::offers::refund::Refund) -> crate::c_types::u8slice {
444 let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.payer_metadata();
445 let mut local_ret = crate::c_types::u8slice::from_slice(ret);
449 /// A chain that the refund is valid for.
452 pub extern "C" fn Refund_chain(this_arg: &crate::lightning::offers::refund::Refund) -> crate::c_types::ThirtyTwoBytes {
453 let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.chain();
454 crate::c_types::ThirtyTwoBytes { data: *ret.as_ref() }
457 /// The amount to refund in msats (i.e., the minimum lightning-payable unit for [`chain`]).
459 /// [`chain`]: Self::chain
462 pub extern "C" fn Refund_amount_msats(this_arg: &crate::lightning::offers::refund::Refund) -> u64 {
463 let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.amount_msats();
467 /// Features pertaining to requesting an invoice.
470 pub extern "C" fn Refund_features(this_arg: &crate::lightning::offers::refund::Refund) -> crate::lightning::ln::features::InvoiceRequestFeatures {
471 let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.features();
472 crate::lightning::ln::features::InvoiceRequestFeatures { inner: unsafe { ObjOps::nonnull_ptr_to_inner((ret as *const lightning::ln::features::InvoiceRequestFeatures<>) as *mut _) }, is_owned: false }
475 /// The quantity of an item that refund is for.
478 pub extern "C" fn Refund_quantity(this_arg: &crate::lightning::offers::refund::Refund) -> crate::c_types::derived::COption_u64Z {
479 let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.quantity();
480 let mut local_ret = if ret.is_none() { crate::c_types::derived::COption_u64Z::None } else { crate::c_types::derived::COption_u64Z::Some( { ret.unwrap() }) };
484 /// A public node id to send to in the case where there are no [`paths`]. Otherwise, a possibly
485 /// transient pubkey.
487 /// [`paths`]: Self::paths
490 pub extern "C" fn Refund_payer_id(this_arg: &crate::lightning::offers::refund::Refund) -> crate::c_types::PublicKey {
491 let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.payer_id();
492 crate::c_types::PublicKey::from_rust(&ret)
495 /// Payer provided note to include in the invoice.
497 /// Note that the return value (or a relevant inner pointer) may be NULL or all-0s to represent None
500 pub extern "C" fn Refund_payer_note(this_arg: &crate::lightning::offers::refund::Refund) -> crate::lightning::util::string::PrintableString {
501 let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.payer_note();
502 let mut local_ret = crate::lightning::util::string::PrintableString { inner: if ret.is_none() { core::ptr::null_mut() } else { { ObjOps::heap_alloc((ret.unwrap())) } }, is_owned: true };
506 /// Generates a non-cryptographic 64-bit hash of the Refund.
508 pub extern "C" fn Refund_hash(o: &Refund) -> u64 {
509 if o.inner.is_null() { return 0; }
510 // Note that we'd love to use alloc::collections::hash_map::DefaultHasher but it's not in core
512 let mut hasher = core::hash::SipHasher::new();
513 core::hash::Hash::hash(o.get_native_ref(), &mut hasher);
514 core::hash::Hasher::finish(&hasher)
517 /// Serialize the Refund object into a byte array which can be read by Refund_read
518 pub extern "C" fn Refund_write(obj: &crate::lightning::offers::refund::Refund) -> crate::c_types::derived::CVec_u8Z {
519 crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref())
522 pub(crate) extern "C" fn Refund_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
523 crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeRefund) })
526 /// Read a Refund object from a string
527 pub extern "C" fn Refund_from_str(s: crate::c_types::Str) -> crate::c_types::derived::CResult_RefundBolt12ParseErrorZ {
528 match lightning::offers::refund::Refund::from_str(s.into_str()) {
530 crate::c_types::CResultTempl::ok(
531 crate::lightning::offers::refund::Refund { inner: ObjOps::heap_alloc(r), is_owned: true }
535 crate::c_types::CResultTempl::err(
536 crate::lightning::offers::parse::Bolt12ParseError { inner: ObjOps::heap_alloc(e), is_owned: true }
542 /// Get the string representation of a Refund object
543 pub extern "C" fn Refund_to_str(o: &crate::lightning::offers::refund::Refund) -> Str {
544 alloc::format!("{}", o.get_native_ref()).into()