_ Git - ldk-c-bindings/blob - lightning-c-bindings/src/lightning/offers/parse.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 //! Parsing and formatting for bech32 message encoding.
  10
  11 use alloc::str::FromStr;
  12 use alloc::string::String;
  13 use core::ffi::c_void;
  14 use core::convert::Infallible;
  15 use bitcoin::hashes::Hash;
  16 use crate::c_types::*;
  17 #[cfg(feature="no-std")]
  18 use alloc::{vec::Vec, boxed::Box};
  19
  20 mod sealed {
  21
  22 use alloc::str::FromStr;
  23 use alloc::string::String;
  24 use core::ffi::c_void;
  25 use core::convert::Infallible;
  26 use bitcoin::hashes::Hash;
  27 use crate::c_types::*;
  28 #[cfg(feature="no-std")]
  29 use alloc::{vec::Vec, boxed::Box};
  30
  31 }
  32
  33 use lightning::offers::parse::Bolt12ParseError as nativeBolt12ParseErrorImport;
  34 pub(crate) type nativeBolt12ParseError = nativeBolt12ParseErrorImport;
  35
  36 /// Error when parsing a bech32 encoded message using [`str::parse`].
  37 #[must_use]
  38 #[repr(C)]
  39 pub struct Bolt12ParseError {
  40         /// A pointer to the opaque Rust object.
  41
  42         /// Nearly everywhere, inner must be non-null, however in places where
  43         /// the Rust equivalent takes an Option, it may be set to null to indicate None.
  44         pub inner: *mut nativeBolt12ParseError,
  45         /// Indicates that this is the only struct which contains the same pointer.
  46
  47         /// Rust functions which take ownership of an object provided via an argument require
  48         /// this to be true and invalidate the object pointed to by inner.
  49         pub is_owned: bool,
  50 }
  51
  52 impl Drop for Bolt12ParseError {
  53         fn drop(&mut self) {
  54                 if self.is_owned && !<*mut nativeBolt12ParseError>::is_null(self.inner) {
  55                         let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) };
  56                 }
  57         }
  58 }
  59 /// Frees any resources used by the Bolt12ParseError, if is_owned is set and inner is non-NULL.
  60 #[no_mangle]
  61 pub extern "C" fn Bolt12ParseError_free(this_obj: Bolt12ParseError) { }
  62 #[allow(unused)]
  63 /// Used only if an object of this type is returned as a trait impl by a method
  64 pub(crate) extern "C" fn Bolt12ParseError_free_void(this_ptr: *mut c_void) {
  65         let _ = unsafe { Box::from_raw(this_ptr as *mut nativeBolt12ParseError) };
  66 }
  67 #[allow(unused)]
  68 impl Bolt12ParseError {
  69         pub(crate) fn get_native_ref(&self) -> &'static nativeBolt12ParseError {
  70                 unsafe { &*ObjOps::untweak_ptr(self.inner) }
  71         }
  72         pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeBolt12ParseError {
  73                 unsafe { &mut *ObjOps::untweak_ptr(self.inner) }
  74         }
  75         /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
  76         pub(crate) fn take_inner(mut self) -> *mut nativeBolt12ParseError {
  77                 assert!(self.is_owned);
  78                 let ret = ObjOps::untweak_ptr(self.inner);
  79                 self.inner = core::ptr::null_mut();
  80                 ret
  81         }
  82 }
  83 impl Clone for Bolt12ParseError {
  84         fn clone(&self) -> Self {
  85                 Self {
  86                         inner: if <*mut nativeBolt12ParseError>::is_null(self.inner) { core::ptr::null_mut() } else {
  87                                 ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) },
  88                         is_owned: true,
  89                 }
  90         }
  91 }
  92 #[allow(unused)]
  93 /// Used only if an object of this type is returned as a trait impl by a method
  94 pub(crate) extern "C" fn Bolt12ParseError_clone_void(this_ptr: *const c_void) -> *mut c_void {
  95         Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeBolt12ParseError)).clone() })) as *mut c_void
  96 }
  97 #[no_mangle]
  98 /// Creates a copy of the Bolt12ParseError
  99 pub extern "C" fn Bolt12ParseError_clone(orig: &Bolt12ParseError) -> Bolt12ParseError {
 100         orig.clone()
 101 }
 102 /// Error when interpreting a TLV stream as a specific type.
 103 #[derive(Clone)]
 104 #[must_use]
 105 #[repr(C)]
 106 pub enum Bolt12SemanticError {
 107         /// The current [`std::time::SystemTime`] is past the offer or invoice's expiration.
 108         AlreadyExpired,
 109         /// The provided chain hash does not correspond to a supported chain.
 110         UnsupportedChain,
 111         /// A chain was provided but was not expected.
 112         UnexpectedChain,
 113         /// An amount was expected but was missing.
 114         MissingAmount,
 115         /// The amount exceeded the total bitcoin supply.
 116         InvalidAmount,
 117         /// An amount was provided but was not sufficient in value.
 118         InsufficientAmount,
 119         /// An amount was provided but was not expected.
 120         UnexpectedAmount,
 121         /// A currency was provided that is not supported.
 122         UnsupportedCurrency,
 123         /// A feature was required but is unknown.
 124         UnknownRequiredFeatures,
 125         /// Features were provided but were not expected.
 126         UnexpectedFeatures,
 127         /// A required description was not provided.
 128         MissingDescription,
 129         /// A signing pubkey was not provided.
 130         MissingSigningPubkey,
 131         /// A signing pubkey was provided but a different one was expected.
 132         InvalidSigningPubkey,
 133         /// A signing pubkey was provided but was not expected.
 134         UnexpectedSigningPubkey,
 135         /// A quantity was expected but was missing.
 136         MissingQuantity,
 137         /// An unsupported quantity was provided.
 138         InvalidQuantity,
 139         /// A quantity or quantity bounds was provided but was not expected.
 140         UnexpectedQuantity,
 141         /// Metadata could not be used to verify the offers message.
 142         InvalidMetadata,
 143         /// Metadata was provided but was not expected.
 144         UnexpectedMetadata,
 145         /// Payer metadata was expected but was missing.
 146         MissingPayerMetadata,
 147         /// A payer id was expected but was missing.
 148         MissingPayerId,
 149         /// Blinded paths were expected but were missing.
 150         MissingPaths,
 151         /// The blinded payinfo given does not match the number of blinded path hops.
 152         InvalidPayInfo,
 153         /// An invoice creation time was expected but was missing.
 154         MissingCreationTime,
 155         /// An invoice payment hash was expected but was missing.
 156         MissingPaymentHash,
 157         /// A signature was expected but was missing.
 158         MissingSignature,
 159 }
 160 use lightning::offers::parse::Bolt12SemanticError as Bolt12SemanticErrorImport;
 161 pub(crate) type nativeBolt12SemanticError = Bolt12SemanticErrorImport;
 162
 163 impl Bolt12SemanticError {
 164         #[allow(unused)]
 165         pub(crate) fn to_native(&self) -> nativeBolt12SemanticError {
 166                 match self {
 167                         Bolt12SemanticError::AlreadyExpired => nativeBolt12SemanticError::AlreadyExpired,
 168                         Bolt12SemanticError::UnsupportedChain => nativeBolt12SemanticError::UnsupportedChain,
 169                         Bolt12SemanticError::UnexpectedChain => nativeBolt12SemanticError::UnexpectedChain,
 170                         Bolt12SemanticError::MissingAmount => nativeBolt12SemanticError::MissingAmount,
 171                         Bolt12SemanticError::InvalidAmount => nativeBolt12SemanticError::InvalidAmount,
 172                         Bolt12SemanticError::InsufficientAmount => nativeBolt12SemanticError::InsufficientAmount,
 173                         Bolt12SemanticError::UnexpectedAmount => nativeBolt12SemanticError::UnexpectedAmount,
 174                         Bolt12SemanticError::UnsupportedCurrency => nativeBolt12SemanticError::UnsupportedCurrency,
 175                         Bolt12SemanticError::UnknownRequiredFeatures => nativeBolt12SemanticError::UnknownRequiredFeatures,
 176                         Bolt12SemanticError::UnexpectedFeatures => nativeBolt12SemanticError::UnexpectedFeatures,
 177                         Bolt12SemanticError::MissingDescription => nativeBolt12SemanticError::MissingDescription,
 178                         Bolt12SemanticError::MissingSigningPubkey => nativeBolt12SemanticError::MissingSigningPubkey,
 179                         Bolt12SemanticError::InvalidSigningPubkey => nativeBolt12SemanticError::InvalidSigningPubkey,
 180                         Bolt12SemanticError::UnexpectedSigningPubkey => nativeBolt12SemanticError::UnexpectedSigningPubkey,
 181                         Bolt12SemanticError::MissingQuantity => nativeBolt12SemanticError::MissingQuantity,
 182                         Bolt12SemanticError::InvalidQuantity => nativeBolt12SemanticError::InvalidQuantity,
 183                         Bolt12SemanticError::UnexpectedQuantity => nativeBolt12SemanticError::UnexpectedQuantity,
 184                         Bolt12SemanticError::InvalidMetadata => nativeBolt12SemanticError::InvalidMetadata,
 185                         Bolt12SemanticError::UnexpectedMetadata => nativeBolt12SemanticError::UnexpectedMetadata,
 186                         Bolt12SemanticError::MissingPayerMetadata => nativeBolt12SemanticError::MissingPayerMetadata,
 187                         Bolt12SemanticError::MissingPayerId => nativeBolt12SemanticError::MissingPayerId,
 188                         Bolt12SemanticError::MissingPaths => nativeBolt12SemanticError::MissingPaths,
 189                         Bolt12SemanticError::InvalidPayInfo => nativeBolt12SemanticError::InvalidPayInfo,
 190                         Bolt12SemanticError::MissingCreationTime => nativeBolt12SemanticError::MissingCreationTime,
 191                         Bolt12SemanticError::MissingPaymentHash => nativeBolt12SemanticError::MissingPaymentHash,
 192                         Bolt12SemanticError::MissingSignature => nativeBolt12SemanticError::MissingSignature,
 193                 }
 194         }
 195         #[allow(unused)]
 196         pub(crate) fn into_native(self) -> nativeBolt12SemanticError {
 197                 match self {
 198                         Bolt12SemanticError::AlreadyExpired => nativeBolt12SemanticError::AlreadyExpired,
 199                         Bolt12SemanticError::UnsupportedChain => nativeBolt12SemanticError::UnsupportedChain,
 200                         Bolt12SemanticError::UnexpectedChain => nativeBolt12SemanticError::UnexpectedChain,
 201                         Bolt12SemanticError::MissingAmount => nativeBolt12SemanticError::MissingAmount,
 202                         Bolt12SemanticError::InvalidAmount => nativeBolt12SemanticError::InvalidAmount,
 203                         Bolt12SemanticError::InsufficientAmount => nativeBolt12SemanticError::InsufficientAmount,
 204                         Bolt12SemanticError::UnexpectedAmount => nativeBolt12SemanticError::UnexpectedAmount,
 205                         Bolt12SemanticError::UnsupportedCurrency => nativeBolt12SemanticError::UnsupportedCurrency,
 206                         Bolt12SemanticError::UnknownRequiredFeatures => nativeBolt12SemanticError::UnknownRequiredFeatures,
 207                         Bolt12SemanticError::UnexpectedFeatures => nativeBolt12SemanticError::UnexpectedFeatures,
 208                         Bolt12SemanticError::MissingDescription => nativeBolt12SemanticError::MissingDescription,
 209                         Bolt12SemanticError::MissingSigningPubkey => nativeBolt12SemanticError::MissingSigningPubkey,
 210                         Bolt12SemanticError::InvalidSigningPubkey => nativeBolt12SemanticError::InvalidSigningPubkey,
 211                         Bolt12SemanticError::UnexpectedSigningPubkey => nativeBolt12SemanticError::UnexpectedSigningPubkey,
 212                         Bolt12SemanticError::MissingQuantity => nativeBolt12SemanticError::MissingQuantity,
 213                         Bolt12SemanticError::InvalidQuantity => nativeBolt12SemanticError::InvalidQuantity,
 214                         Bolt12SemanticError::UnexpectedQuantity => nativeBolt12SemanticError::UnexpectedQuantity,
 215                         Bolt12SemanticError::InvalidMetadata => nativeBolt12SemanticError::InvalidMetadata,
 216                         Bolt12SemanticError::UnexpectedMetadata => nativeBolt12SemanticError::UnexpectedMetadata,
 217                         Bolt12SemanticError::MissingPayerMetadata => nativeBolt12SemanticError::MissingPayerMetadata,
 218                         Bolt12SemanticError::MissingPayerId => nativeBolt12SemanticError::MissingPayerId,
 219                         Bolt12SemanticError::MissingPaths => nativeBolt12SemanticError::MissingPaths,
 220                         Bolt12SemanticError::InvalidPayInfo => nativeBolt12SemanticError::InvalidPayInfo,
 221                         Bolt12SemanticError::MissingCreationTime => nativeBolt12SemanticError::MissingCreationTime,
 222                         Bolt12SemanticError::MissingPaymentHash => nativeBolt12SemanticError::MissingPaymentHash,
 223                         Bolt12SemanticError::MissingSignature => nativeBolt12SemanticError::MissingSignature,
 224                 }
 225         }
 226         #[allow(unused)]
 227         pub(crate) fn from_native(native: &nativeBolt12SemanticError) -> Self {
 228                 match native {
 229                         nativeBolt12SemanticError::AlreadyExpired => Bolt12SemanticError::AlreadyExpired,
 230                         nativeBolt12SemanticError::UnsupportedChain => Bolt12SemanticError::UnsupportedChain,
 231                         nativeBolt12SemanticError::UnexpectedChain => Bolt12SemanticError::UnexpectedChain,
 232                         nativeBolt12SemanticError::MissingAmount => Bolt12SemanticError::MissingAmount,
 233                         nativeBolt12SemanticError::InvalidAmount => Bolt12SemanticError::InvalidAmount,
 234                         nativeBolt12SemanticError::InsufficientAmount => Bolt12SemanticError::InsufficientAmount,
 235                         nativeBolt12SemanticError::UnexpectedAmount => Bolt12SemanticError::UnexpectedAmount,
 236                         nativeBolt12SemanticError::UnsupportedCurrency => Bolt12SemanticError::UnsupportedCurrency,
 237                         nativeBolt12SemanticError::UnknownRequiredFeatures => Bolt12SemanticError::UnknownRequiredFeatures,
 238                         nativeBolt12SemanticError::UnexpectedFeatures => Bolt12SemanticError::UnexpectedFeatures,
 239                         nativeBolt12SemanticError::MissingDescription => Bolt12SemanticError::MissingDescription,
 240                         nativeBolt12SemanticError::MissingSigningPubkey => Bolt12SemanticError::MissingSigningPubkey,
 241                         nativeBolt12SemanticError::InvalidSigningPubkey => Bolt12SemanticError::InvalidSigningPubkey,
 242                         nativeBolt12SemanticError::UnexpectedSigningPubkey => Bolt12SemanticError::UnexpectedSigningPubkey,
 243                         nativeBolt12SemanticError::MissingQuantity => Bolt12SemanticError::MissingQuantity,
 244                         nativeBolt12SemanticError::InvalidQuantity => Bolt12SemanticError::InvalidQuantity,
 245                         nativeBolt12SemanticError::UnexpectedQuantity => Bolt12SemanticError::UnexpectedQuantity,
 246                         nativeBolt12SemanticError::InvalidMetadata => Bolt12SemanticError::InvalidMetadata,
 247                         nativeBolt12SemanticError::UnexpectedMetadata => Bolt12SemanticError::UnexpectedMetadata,
 248                         nativeBolt12SemanticError::MissingPayerMetadata => Bolt12SemanticError::MissingPayerMetadata,
 249                         nativeBolt12SemanticError::MissingPayerId => Bolt12SemanticError::MissingPayerId,
 250                         nativeBolt12SemanticError::MissingPaths => Bolt12SemanticError::MissingPaths,
 251                         nativeBolt12SemanticError::InvalidPayInfo => Bolt12SemanticError::InvalidPayInfo,
 252                         nativeBolt12SemanticError::MissingCreationTime => Bolt12SemanticError::MissingCreationTime,
 253                         nativeBolt12SemanticError::MissingPaymentHash => Bolt12SemanticError::MissingPaymentHash,
 254                         nativeBolt12SemanticError::MissingSignature => Bolt12SemanticError::MissingSignature,
 255                 }
 256         }
 257         #[allow(unused)]
 258         pub(crate) fn native_into(native: nativeBolt12SemanticError) -> Self {
 259                 match native {
 260                         nativeBolt12SemanticError::AlreadyExpired => Bolt12SemanticError::AlreadyExpired,
 261                         nativeBolt12SemanticError::UnsupportedChain => Bolt12SemanticError::UnsupportedChain,
 262                         nativeBolt12SemanticError::UnexpectedChain => Bolt12SemanticError::UnexpectedChain,
 263                         nativeBolt12SemanticError::MissingAmount => Bolt12SemanticError::MissingAmount,
 264                         nativeBolt12SemanticError::InvalidAmount => Bolt12SemanticError::InvalidAmount,
 265                         nativeBolt12SemanticError::InsufficientAmount => Bolt12SemanticError::InsufficientAmount,
 266                         nativeBolt12SemanticError::UnexpectedAmount => Bolt12SemanticError::UnexpectedAmount,
 267                         nativeBolt12SemanticError::UnsupportedCurrency => Bolt12SemanticError::UnsupportedCurrency,
 268                         nativeBolt12SemanticError::UnknownRequiredFeatures => Bolt12SemanticError::UnknownRequiredFeatures,
 269                         nativeBolt12SemanticError::UnexpectedFeatures => Bolt12SemanticError::UnexpectedFeatures,
 270                         nativeBolt12SemanticError::MissingDescription => Bolt12SemanticError::MissingDescription,
 271                         nativeBolt12SemanticError::MissingSigningPubkey => Bolt12SemanticError::MissingSigningPubkey,
 272                         nativeBolt12SemanticError::InvalidSigningPubkey => Bolt12SemanticError::InvalidSigningPubkey,
 273                         nativeBolt12SemanticError::UnexpectedSigningPubkey => Bolt12SemanticError::UnexpectedSigningPubkey,
 274                         nativeBolt12SemanticError::MissingQuantity => Bolt12SemanticError::MissingQuantity,
 275                         nativeBolt12SemanticError::InvalidQuantity => Bolt12SemanticError::InvalidQuantity,
 276                         nativeBolt12SemanticError::UnexpectedQuantity => Bolt12SemanticError::UnexpectedQuantity,
 277                         nativeBolt12SemanticError::InvalidMetadata => Bolt12SemanticError::InvalidMetadata,
 278                         nativeBolt12SemanticError::UnexpectedMetadata => Bolt12SemanticError::UnexpectedMetadata,
 279                         nativeBolt12SemanticError::MissingPayerMetadata => Bolt12SemanticError::MissingPayerMetadata,
 280                         nativeBolt12SemanticError::MissingPayerId => Bolt12SemanticError::MissingPayerId,
 281                         nativeBolt12SemanticError::MissingPaths => Bolt12SemanticError::MissingPaths,
 282                         nativeBolt12SemanticError::InvalidPayInfo => Bolt12SemanticError::InvalidPayInfo,
 283                         nativeBolt12SemanticError::MissingCreationTime => Bolt12SemanticError::MissingCreationTime,
 284                         nativeBolt12SemanticError::MissingPaymentHash => Bolt12SemanticError::MissingPaymentHash,
 285                         nativeBolt12SemanticError::MissingSignature => Bolt12SemanticError::MissingSignature,
 286                 }
 287         }
 288 }
 289 /// Creates a copy of the Bolt12SemanticError
 290 #[no_mangle]
 291 pub extern "C" fn Bolt12SemanticError_clone(orig: &Bolt12SemanticError) -> Bolt12SemanticError {
 292         orig.clone()
 293 }
 294 #[no_mangle]
 295 /// Utility method to constructs a new AlreadyExpired-variant Bolt12SemanticError
 296 pub extern "C" fn Bolt12SemanticError_already_expired() -> Bolt12SemanticError {
 297         Bolt12SemanticError::AlreadyExpired}
 298 #[no_mangle]
 299 /// Utility method to constructs a new UnsupportedChain-variant Bolt12SemanticError
 300 pub extern "C" fn Bolt12SemanticError_unsupported_chain() -> Bolt12SemanticError {
 301         Bolt12SemanticError::UnsupportedChain}
 302 #[no_mangle]
 303 /// Utility method to constructs a new UnexpectedChain-variant Bolt12SemanticError
 304 pub extern "C" fn Bolt12SemanticError_unexpected_chain() -> Bolt12SemanticError {
 305         Bolt12SemanticError::UnexpectedChain}
 306 #[no_mangle]
 307 /// Utility method to constructs a new MissingAmount-variant Bolt12SemanticError
 308 pub extern "C" fn Bolt12SemanticError_missing_amount() -> Bolt12SemanticError {
 309         Bolt12SemanticError::MissingAmount}
 310 #[no_mangle]
 311 /// Utility method to constructs a new InvalidAmount-variant Bolt12SemanticError
 312 pub extern "C" fn Bolt12SemanticError_invalid_amount() -> Bolt12SemanticError {
 313         Bolt12SemanticError::InvalidAmount}
 314 #[no_mangle]
 315 /// Utility method to constructs a new InsufficientAmount-variant Bolt12SemanticError
 316 pub extern "C" fn Bolt12SemanticError_insufficient_amount() -> Bolt12SemanticError {
 317         Bolt12SemanticError::InsufficientAmount}
 318 #[no_mangle]
 319 /// Utility method to constructs a new UnexpectedAmount-variant Bolt12SemanticError
 320 pub extern "C" fn Bolt12SemanticError_unexpected_amount() -> Bolt12SemanticError {
 321         Bolt12SemanticError::UnexpectedAmount}
 322 #[no_mangle]
 323 /// Utility method to constructs a new UnsupportedCurrency-variant Bolt12SemanticError
 324 pub extern "C" fn Bolt12SemanticError_unsupported_currency() -> Bolt12SemanticError {
 325         Bolt12SemanticError::UnsupportedCurrency}
 326 #[no_mangle]
 327 /// Utility method to constructs a new UnknownRequiredFeatures-variant Bolt12SemanticError
 328 pub extern "C" fn Bolt12SemanticError_unknown_required_features() -> Bolt12SemanticError {
 329         Bolt12SemanticError::UnknownRequiredFeatures}
 330 #[no_mangle]
 331 /// Utility method to constructs a new UnexpectedFeatures-variant Bolt12SemanticError
 332 pub extern "C" fn Bolt12SemanticError_unexpected_features() -> Bolt12SemanticError {
 333         Bolt12SemanticError::UnexpectedFeatures}
 334 #[no_mangle]
 335 /// Utility method to constructs a new MissingDescription-variant Bolt12SemanticError
 336 pub extern "C" fn Bolt12SemanticError_missing_description() -> Bolt12SemanticError {
 337         Bolt12SemanticError::MissingDescription}
 338 #[no_mangle]
 339 /// Utility method to constructs a new MissingSigningPubkey-variant Bolt12SemanticError
 340 pub extern "C" fn Bolt12SemanticError_missing_signing_pubkey() -> Bolt12SemanticError {
 341         Bolt12SemanticError::MissingSigningPubkey}
 342 #[no_mangle]
 343 /// Utility method to constructs a new InvalidSigningPubkey-variant Bolt12SemanticError
 344 pub extern "C" fn Bolt12SemanticError_invalid_signing_pubkey() -> Bolt12SemanticError {
 345         Bolt12SemanticError::InvalidSigningPubkey}
 346 #[no_mangle]
 347 /// Utility method to constructs a new UnexpectedSigningPubkey-variant Bolt12SemanticError
 348 pub extern "C" fn Bolt12SemanticError_unexpected_signing_pubkey() -> Bolt12SemanticError {
 349         Bolt12SemanticError::UnexpectedSigningPubkey}
 350 #[no_mangle]
 351 /// Utility method to constructs a new MissingQuantity-variant Bolt12SemanticError
 352 pub extern "C" fn Bolt12SemanticError_missing_quantity() -> Bolt12SemanticError {
 353         Bolt12SemanticError::MissingQuantity}
 354 #[no_mangle]
 355 /// Utility method to constructs a new InvalidQuantity-variant Bolt12SemanticError
 356 pub extern "C" fn Bolt12SemanticError_invalid_quantity() -> Bolt12SemanticError {
 357         Bolt12SemanticError::InvalidQuantity}
 358 #[no_mangle]
 359 /// Utility method to constructs a new UnexpectedQuantity-variant Bolt12SemanticError
 360 pub extern "C" fn Bolt12SemanticError_unexpected_quantity() -> Bolt12SemanticError {
 361         Bolt12SemanticError::UnexpectedQuantity}
 362 #[no_mangle]
 363 /// Utility method to constructs a new InvalidMetadata-variant Bolt12SemanticError
 364 pub extern "C" fn Bolt12SemanticError_invalid_metadata() -> Bolt12SemanticError {
 365         Bolt12SemanticError::InvalidMetadata}
 366 #[no_mangle]
 367 /// Utility method to constructs a new UnexpectedMetadata-variant Bolt12SemanticError
 368 pub extern "C" fn Bolt12SemanticError_unexpected_metadata() -> Bolt12SemanticError {
 369         Bolt12SemanticError::UnexpectedMetadata}
 370 #[no_mangle]
 371 /// Utility method to constructs a new MissingPayerMetadata-variant Bolt12SemanticError
 372 pub extern "C" fn Bolt12SemanticError_missing_payer_metadata() -> Bolt12SemanticError {
 373         Bolt12SemanticError::MissingPayerMetadata}
 374 #[no_mangle]
 375 /// Utility method to constructs a new MissingPayerId-variant Bolt12SemanticError
 376 pub extern "C" fn Bolt12SemanticError_missing_payer_id() -> Bolt12SemanticError {
 377         Bolt12SemanticError::MissingPayerId}
 378 #[no_mangle]
 379 /// Utility method to constructs a new MissingPaths-variant Bolt12SemanticError
 380 pub extern "C" fn Bolt12SemanticError_missing_paths() -> Bolt12SemanticError {
 381         Bolt12SemanticError::MissingPaths}
 382 #[no_mangle]
 383 /// Utility method to constructs a new InvalidPayInfo-variant Bolt12SemanticError
 384 pub extern "C" fn Bolt12SemanticError_invalid_pay_info() -> Bolt12SemanticError {
 385         Bolt12SemanticError::InvalidPayInfo}
 386 #[no_mangle]
 387 /// Utility method to constructs a new MissingCreationTime-variant Bolt12SemanticError
 388 pub extern "C" fn Bolt12SemanticError_missing_creation_time() -> Bolt12SemanticError {
 389         Bolt12SemanticError::MissingCreationTime}
 390 #[no_mangle]
 391 /// Utility method to constructs a new MissingPaymentHash-variant Bolt12SemanticError
 392 pub extern "C" fn Bolt12SemanticError_missing_payment_hash() -> Bolt12SemanticError {
 393         Bolt12SemanticError::MissingPaymentHash}
 394 #[no_mangle]
 395 /// Utility method to constructs a new MissingSignature-variant Bolt12SemanticError
 396 pub extern "C" fn Bolt12SemanticError_missing_signature() -> Bolt12SemanticError {
 397         Bolt12SemanticError::MissingSignature}