secp_ctx: Option<&'a Secp256k1<T>>,
}
+/// Builds an [`Offer`] for the "offer to be paid" flow.
+///
+/// See [module-level documentation] for usage.
+///
+/// This is not exported to bindings users as builder patterns don't map outside of move semantics.
+///
+/// [module-level documentation]: self
+#[cfg(c_bindings)]
+pub struct OfferWithExplicitMetadataBuilder<'a> {
+ offer: OfferContents,
+ metadata_strategy: core::marker::PhantomData<ExplicitMetadata>,
+ secp_ctx: Option<&'a Secp256k1<secp256k1::All>>,
+}
+
+/// Builds an [`Offer`] for the "offer to be paid" flow.
+///
+/// See [module-level documentation] for usage.
+///
+/// This is not exported to bindings users as builder patterns don't map outside of move semantics.
+///
+/// [module-level documentation]: self
+#[cfg(c_bindings)]
+pub struct OfferWithDerivedMetadataBuilder<'a> {
+ offer: OfferContents,
+ metadata_strategy: core::marker::PhantomData<DerivedMetadata>,
+ secp_ctx: Option<&'a Secp256k1<secp256k1::All>>,
+}
+
/// Indicates how [`Offer::metadata`] may be set.
///
/// This is not exported to bindings users as builder patterns don't map outside of move semantics.
}
} }
-macro_rules! offer_derived_metadata_builder_methods { () => {
+macro_rules! offer_derived_metadata_builder_methods { ($secp_context: ty) => {
/// Similar to [`OfferBuilder::new`] except, if [`OfferBuilder::path`] is called, the signing
/// pubkey is derived from the given [`ExpandedKey`] and [`EntropySource`]. This provides
/// recipient privacy by using a different signing pubkey for each offer. Otherwise, the
/// [`ExpandedKey`]: crate::ln::inbound_payment::ExpandedKey
pub fn deriving_signing_pubkey<ES: Deref>(
description: String, node_id: PublicKey, expanded_key: &ExpandedKey, entropy_source: ES,
- secp_ctx: &'a Secp256k1<T>
+ secp_ctx: &'a Secp256k1<$secp_context>
) -> Self where ES::Target: EntropySource {
let nonce = Nonce::from_entropy_source(entropy_source);
let derivation_material = MetadataMaterial::new(nonce, expanded_key, IV_BYTES, None);
} }
macro_rules! offer_builder_methods { (
- $self: ident, $self_type: ty, $return_type: ty, $return_value: expr
+ $self: ident, $self_type: ty, $return_type: ty, $return_value: expr $(, $self_mut: tt)?
) => {
/// Adds the chain hash of the given [`Network`] to [`Offer::chains`]. If not called,
/// the chain hash of [`Network::Bitcoin`] is assumed to be the only one supported.
/// See [`Offer::chains`] on how this relates to the payment currency.
///
/// Successive calls to this method will add another chain hash.
- pub(crate) fn chain_hash(mut $self: $self_type, chain: ChainHash) -> $return_type {
+ pub(crate) fn chain_hash($($self_mut)* $self: $self_type, chain: ChainHash) -> $return_type {
let chains = $self.offer.chains.get_or_insert_with(Vec::new);
if !chains.contains(&chain) {
chains.push(chain);
/// Sets the [`Offer::amount`].
///
/// Successive calls to this method will override the previous setting.
- pub(super) fn amount(mut $self: $self_type, amount: Amount) -> $return_type {
+ pub(super) fn amount($($self_mut)* $self: $self_type, amount: Amount) -> $return_type {
$self.offer.amount = Some(amount);
$return_value
}
/// already passed is valid and can be checked for using [`Offer::is_expired`].
///
/// Successive calls to this method will override the previous setting.
- pub fn absolute_expiry(mut $self: $self_type, absolute_expiry: Duration) -> $return_type {
+ pub fn absolute_expiry($($self_mut)* $self: $self_type, absolute_expiry: Duration) -> $return_type {
$self.offer.absolute_expiry = Some(absolute_expiry);
$return_value
}
/// Sets the [`Offer::issuer`].
///
/// Successive calls to this method will override the previous setting.
- pub fn issuer(mut $self: $self_type, issuer: String) -> $return_type {
+ pub fn issuer($($self_mut)* $self: $self_type, issuer: String) -> $return_type {
$self.offer.issuer = Some(issuer);
$return_value
}
///
/// Successive calls to this method will add another blinded path. Caller is responsible for not
/// adding duplicate paths.
- pub fn path(mut $self: $self_type, path: BlindedPath) -> $return_type {
+ pub fn path($($self_mut)* $self: $self_type, path: BlindedPath) -> $return_type {
$self.offer.paths.get_or_insert_with(Vec::new).push(path);
$return_value
}
/// [`Quantity::One`].
///
/// Successive calls to this method will override the previous setting.
- pub fn supported_quantity(mut $self: $self_type, quantity: Quantity) -> $return_type {
+ pub fn supported_quantity($($self_mut)* $self: $self_type, quantity: Quantity) -> $return_type {
$self.offer.supported_quantity = quantity;
$return_value
}
/// Builds an [`Offer`] from the builder's settings.
- pub fn build(mut $self: $self_type) -> Result<Offer, Bolt12SemanticError> {
+ pub fn build($($self_mut)* $self: $self_type) -> Result<Offer, Bolt12SemanticError> {
match $self.offer.amount {
Some(Amount::Bitcoin { amount_msats }) => {
if amount_msats > MAX_VALUE_MSAT {
Ok($self.build_without_checks())
}
- fn build_without_checks(mut $self: $self_type) -> Offer {
+ fn build_without_checks($($self_mut)* $self: $self_type) -> Offer {
// Create the metadata for stateless verification of an InvoiceRequest.
if let Some(mut metadata) = $self.offer.metadata.take() {
if metadata.has_derivation_material() {
let mut bytes = Vec::new();
$self.offer.write(&mut bytes).unwrap();
- Offer { bytes, contents: $self.offer }
+ Offer {
+ bytes,
+ #[cfg(not(c_bindings))]
+ contents: $self.offer,
+ #[cfg(c_bindings)]
+ contents: $self.offer.clone()
+ }
}
} }
#[cfg(test)]
macro_rules! offer_builder_test_methods { (
- $self: ident, $self_type: ty, $return_type: ty, $return_value: expr
+ $self: ident, $self_type: ty, $return_type: ty, $return_value: expr $(, $self_mut: tt)?
) => {
- fn features_unchecked(mut $self: $self_type, features: OfferFeatures) -> $return_type {
+ #[cfg_attr(c_bindings, allow(dead_code))]
+ fn features_unchecked($($self_mut)* $self: $self_type, features: OfferFeatures) -> $return_type {
$self.offer.features = features;
$return_value
}
- pub(crate) fn clear_paths(mut $self: $self_type) -> $return_type {
+ #[cfg_attr(c_bindings, allow(dead_code))]
+ pub(crate) fn clear_paths($($self_mut)* $self: $self_type) -> $return_type {
$self.offer.paths = None;
$return_value
}
+ #[cfg_attr(c_bindings, allow(dead_code))]
pub(super) fn build_unchecked($self: $self_type) -> Offer {
$self.build_without_checks()
}
} }
impl<'a, M: MetadataStrategy, T: secp256k1::Signing> OfferBuilder<'a, M, T> {
- offer_builder_methods!(self, Self, Self, self);
+ offer_builder_methods!(self, Self, Self, self, mut);
#[cfg(test)]
- offer_builder_test_methods!(self, Self, Self, self);
+ offer_builder_test_methods!(self, Self, Self, self, mut);
}
impl<'a> OfferBuilder<'a, ExplicitMetadata, secp256k1::SignOnly> {
}
impl<'a, T: secp256k1::Signing> OfferBuilder<'a, DerivedMetadata, T> {
- offer_derived_metadata_builder_methods!();
+ offer_derived_metadata_builder_methods!(T);
+}
+
+#[cfg(all(c_bindings, not(test)))]
+impl<'a> OfferWithExplicitMetadataBuilder<'a> {
+ offer_explicit_metadata_builder_methods!(self, &mut Self, (), ());
+ offer_builder_methods!(self, &mut Self, (), ());
+}
+
+#[cfg(all(c_bindings, test))]
+impl<'a> OfferWithExplicitMetadataBuilder<'a> {
+ offer_explicit_metadata_builder_methods!(self, &mut Self, &mut Self, self);
+ offer_builder_methods!(self, &mut Self, &mut Self, self);
+ offer_builder_test_methods!(self, &mut Self, &mut Self, self);
+}
+
+#[cfg(all(c_bindings, not(test)))]
+impl<'a> OfferWithDerivedMetadataBuilder<'a> {
+ offer_derived_metadata_builder_methods!(secp256k1::All);
+ offer_builder_methods!(self, &mut Self, (), ());
+}
+
+#[cfg(all(c_bindings, test))]
+impl<'a> OfferWithDerivedMetadataBuilder<'a> {
+ offer_derived_metadata_builder_methods!(secp256k1::All);
+ offer_builder_methods!(self, &mut Self, &mut Self, self);
+ offer_builder_test_methods!(self, &mut Self, &mut Self, self);
+}
+
+#[cfg(c_bindings)]
+impl<'a> From<OfferBuilder<'a, DerivedMetadata, secp256k1::All>>
+for OfferWithDerivedMetadataBuilder<'a> {
+ fn from(builder: OfferBuilder<'a, DerivedMetadata, secp256k1::All>) -> Self {
+ let OfferBuilder { offer, metadata_strategy, secp_ctx } = builder;
+
+ Self { offer, metadata_strategy, secp_ctx }
+ }
}
/// An `Offer` is a potentially long-lived proposal for payment of a good or service.
#[cfg(test)]
mod tests {
- use super::{Amount, Offer, OfferBuilder, OfferTlvStreamRef, Quantity};
+ use super::{Amount, Offer, OfferTlvStreamRef, Quantity};
+ #[cfg(not(c_bindings))]
+ use {
+ super::OfferBuilder,
+ };
+ #[cfg(c_bindings)]
+ use {
+ super::OfferWithExplicitMetadataBuilder as OfferBuilder,
+ };
use bitcoin::blockdata::constants::ChainHash;
use bitcoin::network::constants::Network;
let entropy = FixedEntropy {};
let secp_ctx = Secp256k1::new();
+ #[cfg(c_bindings)]
+ use super::OfferWithDerivedMetadataBuilder as OfferBuilder;
let offer = OfferBuilder
::deriving_signing_pubkey(desc, node_id, &expanded_key, &entropy, &secp_ctx)
.amount_msats(1000)
],
};
+ #[cfg(c_bindings)]
+ use super::OfferWithDerivedMetadataBuilder as OfferBuilder;
let offer = OfferBuilder
::deriving_signing_pubkey(desc, node_id, &expanded_key, &entropy, &secp_ctx)
.amount_msats(1000)
assert_eq!(tlv_stream.amount, Some(1000));
assert_eq!(tlv_stream.currency, None);
+ #[cfg(not(c_bindings))]
let builder = OfferBuilder::new("foo".into(), pubkey(42))
.amount(currency_amount.clone());
+ #[cfg(c_bindings)]
+ let mut builder = OfferBuilder::new("foo".into(), pubkey(42));
+ #[cfg(c_bindings)]
+ builder.amount(currency_amount.clone());
let tlv_stream = builder.offer.as_tlv_stream();
assert_eq!(builder.offer.amount, Some(currency_amount.clone()));
assert_eq!(tlv_stream.amount, Some(10));
projects / rust-lightning / blobdiff