rusk-abi: Clean library

contracts/alice/src/lib.rs

@@ -17,7 +17,7 @@ mod wasm {
     use super::*;
     use state::Alice;
 
-    use rusk_abi::{ContractId, PaymentInfo};
+    use rusk_abi::ContractId;
 
     #[no_mangle]
     static SELF_ID: ContractId = ContractId::uninitialized();
@@ -38,11 +38,4 @@ mod wasm {
     unsafe fn deposit(arg_len: u32) -> u32 {
         rusk_abi::wrap_call(arg_len, |arg| STATE.deposit(arg))
     }
-
-    const PAYMENT_INFO: PaymentInfo = PaymentInfo::Any(None);
-
-    #[no_mangle]
-    fn payment_info(arg_len: u32) -> u32 {
-        rusk_abi::wrap_call(arg_len, |_: ()| PAYMENT_INFO)
-    }
 }

contracts/bob/src/lib.rs

@@ -17,8 +17,6 @@ use state::Bob;
 mod wasm {
     use super::*;
 
-    use rusk_abi::PaymentInfo;
-
     #[no_mangle]
     static mut STATE: Bob = Bob::new();
 
@@ -41,11 +39,4 @@ mod wasm {
     unsafe fn value(arg_len: u32) -> u32 {
         rusk_abi::wrap_call(arg_len, |()| STATE.value())
     }
-
-    const PAYMENT_INFO: PaymentInfo = PaymentInfo::Transparent(None);
-
-    #[no_mangle]
-    fn payment_info(arg_len: u32) -> u32 {
-        rusk_abi::wrap_call(arg_len, |_: ()| PAYMENT_INFO)
-    }
 }

contracts/host_fn/src/lib.rs

@@ -16,7 +16,7 @@ use execution_core::{
     BlsPublicKey, BlsScalar, BlsSignature, PublicKey, SchnorrPublicKey,
     SchnorrSignature,
 };
-use rusk_abi::{ContractId, PaymentInfo, PublicInput};
+use rusk_abi::ContractId;
 
 #[no_mangle]
 static SELF_ID: ContractId = ContractId::uninitialized();
@@ -39,7 +39,7 @@ impl HostFnTest {
         &self,
         verifier_data: Vec<u8>,
         proof: Vec<u8>,
-        public_inputs: Vec<PublicInput>,
+        public_inputs: Vec<BlsScalar>,
     ) -> bool {
         rusk_abi::verify_proof(verifier_data, proof, public_inputs)
     }
@@ -120,10 +120,3 @@ unsafe fn contract_owner(arg_len: u32) -> u32 {
 unsafe fn contract_owner_raw(arg_len: u32) -> u32 {
     rusk_abi::wrap_call(arg_len, |_: ()| STATE.owner_raw())
 }
-
-const PAYMENT_INFO: PaymentInfo = PaymentInfo::Transparent(None);
-
-#[no_mangle]
-fn payment_info(arg_len: u32) -> u32 {
-    rusk_abi::wrap_call(arg_len, |_: ()| PAYMENT_INFO)
-}

contracts/license/src/state.rs

@@ -12,7 +12,6 @@ use dusk_bytes::Serializable;
 use poseidon_merkle::{Opening, Tree};
 
 use execution_core::BlsScalar;
-use rusk_abi::PublicInput;
 
 use crate::collection::Map;
 use crate::error::Error;
@@ -104,13 +103,12 @@ impl LicenseContractState {
     /// creates a session with the corresponding session id.
     /// Method intended to be called by the user.
     pub fn use_license(&mut self, use_license_arg: UseLicenseArg) {
-        let mut pi = Vec::new();
-        for scalar in use_license_arg.public_inputs.iter() {
-            pi.push(PublicInput::BlsScalar(*scalar));
-        }
-        let vd = verifier_data_license_circuit();
-        Self::assert_proof(vd, use_license_arg.proof.to_bytes().to_vec(), pi)
-            .expect("Provided proof verification should succeed!");
+        Self::assert_proof(
+            verifier_data_license_circuit(),
+            use_license_arg.proof.to_bytes().to_vec(),
+            use_license_arg.public_inputs.clone(),
+        )
+        .expect("Provided proof verification should succeed!");
 
         // after a successful proof verification we can add a session to a
         // shared list of sessions
@@ -139,7 +137,7 @@ impl LicenseContractState {
     fn assert_proof(
         verifier_data: &[u8],
         proof: Vec<u8>,
-        public_inputs: Vec<PublicInput>,
+        public_inputs: Vec<BlsScalar>,
     ) -> Result<(), Error> {
         rusk_abi::verify_proof(verifier_data.to_vec(), proof, public_inputs)
             .then_some(())

contracts/stake/benches/get_provisioners.rs

@@ -9,7 +9,7 @@ use execution_core::{stake::StakeData, BlsPublicKey, BlsSecretKey};
 use rand::rngs::StdRng;
 use rand::{CryptoRng, RngCore, SeedableRng};
 use rusk_abi::{
-    ContractData, Error, Session, STAKE_CONTRACT, TRANSFER_CONTRACT, VM,
+    ContractData, PiecrustError, Session, STAKE_CONTRACT, TRANSFER_CONTRACT, VM,
 };
 use std::sync::mpsc;
 
@@ -24,7 +24,7 @@ fn config() -> Criterion {
     Criterion::default().sample_size(SAMPLE_SIZE)
 }
 
-fn update_root(session: &mut Session) -> Result<(), Error> {
+fn update_root(session: &mut Session) -> Result<(), PiecrustError> {
     session
         .call(TRANSFER_CONTRACT, "update_root", &(), POINT_LIMIT)
         .map(|r| r.data)
@@ -66,7 +66,7 @@ fn instantiate(vm: &VM) -> Session {
 
 fn do_get_provisioners(
     session: &mut Session,
-) -> Result<impl Iterator<Item = (BlsPublicKey, StakeData)>, Error> {
+) -> Result<impl Iterator<Item = (BlsPublicKey, StakeData)>, PiecrustError> {
     let (sender, receiver) = mpsc::channel();
     session.feeder_call::<_, ()>(
         STAKE_CONTRACT,
@@ -84,7 +84,7 @@ fn do_get_provisioners(
 fn do_insert_stake<Rng: RngCore + CryptoRng>(
     rng: &mut Rng,
     session: &mut Session,
-) -> Result<(), Error> {
+) -> Result<(), PiecrustError> {
     let stake_data = StakeData {
         amount: Some((TEST_STAKE, 0)),
         nonce: 1,

contracts/stake/src/lib.rs

@@ -18,7 +18,7 @@ use state::StakeState;
 /// The minimum amount of Dusk one can stake.
 pub const MINIMUM_STAKE: Dusk = dusk(1_000.0);
 
-use rusk_abi::{ContractId, PaymentInfo};
+use rusk_abi::ContractId;
 
 #[no_mangle]
 static SELF_ID: ContractId = ContractId::uninitialized();
@@ -150,10 +150,3 @@ fn assert_external_caller() {
         panic!("Can only be called from the outside the VM");
     }
 }
-
-const PAYMENT_INFO: PaymentInfo = PaymentInfo::Transparent(None);
-
-#[no_mangle]
-fn payment_info(arg_len: u32) -> u32 {
-    rusk_abi::wrap_call(arg_len, |_: ()| PAYMENT_INFO)
-}

contracts/stake/tests/common/utils.rs

@@ -22,14 +22,16 @@ use execution_core::{
     value_commitment, JubJubScalar, Note, PublicKey, SchnorrSecretKey,
     SecretKey, Sender, TxSkeleton, ViewKey,
 };
-use rusk_abi::{CallReceipt, ContractError, Error, Session, TRANSFER_CONTRACT};
+use rusk_abi::{
+    CallReceipt, ContractError, PiecrustError, Session, TRANSFER_CONTRACT,
+};
 
 const POINT_LIMIT: u64 = 0x100000000;
 
 pub fn leaves_from_height(
     session: &mut Session,
     height: u64,
-) -> Result<Vec<TreeLeaf>, Error> {
+) -> Result<Vec<TreeLeaf>, PiecrustError> {
     let (feeder, receiver) = mpsc::channel();
 
     session.feeder_call::<_, ()>(
@@ -49,7 +51,7 @@ pub fn leaves_from_height(
 pub fn leaves_from_pos(
     session: &mut Session,
     pos: u64,
-) -> Result<Vec<TreeLeaf>, Error> {
+) -> Result<Vec<TreeLeaf>, PiecrustError> {
     let (feeder, receiver) = mpsc::channel();
 
     session.feeder_call::<_, ()>(
@@ -66,13 +68,13 @@ pub fn leaves_from_pos(
         .collect())
 }
 
-pub fn update_root(session: &mut Session) -> Result<(), Error> {
+pub fn update_root(session: &mut Session) -> Result<(), PiecrustError> {
     session
         .call(TRANSFER_CONTRACT, "update_root", &(), POINT_LIMIT)
         .map(|r| r.data)
 }
 
-pub fn root(session: &mut Session) -> Result<BlsScalar, Error> {
+pub fn root(session: &mut Session) -> Result<BlsScalar, PiecrustError> {
     session
         .call(TRANSFER_CONTRACT, "root", &(), POINT_LIMIT)
         .map(|r| r.data)
@@ -81,7 +83,7 @@ pub fn root(session: &mut Session) -> Result<BlsScalar, Error> {
 pub fn opening(
     session: &mut Session,
     pos: u64,
-) -> Result<Option<PoseidonOpening<(), TRANSFER_TREE_DEPTH>>, Error> {
+) -> Result<Option<PoseidonOpening<(), TRANSFER_TREE_DEPTH>>, PiecrustError> {
     session
         .call(TRANSFER_CONTRACT, "opening", &pos, POINT_LIMIT)
         .map(|r| r.data)
@@ -123,7 +125,7 @@ pub fn filter_notes_owned_by<I: IntoIterator<Item = Note>>(
 pub fn execute(
     session: &mut Session,
     tx: impl Into<Transaction>,
-) -> Result<CallReceipt<Result<Vec<u8>, ContractError>>, Error> {
+) -> Result<CallReceipt<Result<Vec<u8>, ContractError>>, PiecrustError> {
     let tx = tx.into();
 
     // Spend the inputs and execute the call. If this errors the transaction is

contracts/stake/tests/events.rs

@@ -14,15 +14,15 @@ use execution_core::{
     BlsPublicKey, BlsSecretKey, PublicKey, SecretKey,
 };
 use rusk_abi::dusk::dusk;
-use rusk_abi::{Error, STAKE_CONTRACT, TRANSFER_CONTRACT};
+use rusk_abi::{PiecrustError, STAKE_CONTRACT, TRANSFER_CONTRACT};
 
 use crate::common::assert::assert_event;
 use crate::common::init::instantiate;
 
 const GENESIS_VALUE: u64 = dusk(1_000_000.0);
 
 #[test]
-fn reward_slash() -> Result<(), Error> {
+fn reward_slash() -> Result<(), PiecrustError> {
     let rng = &mut StdRng::seed_from_u64(0xfeeb);
 
     let vm = &mut rusk_abi::new_ephemeral_vm()
@@ -111,7 +111,7 @@ fn reward_slash() -> Result<(), Error> {
 }
 
 #[test]
-fn stake_hard_slash() -> Result<(), Error> {
+fn stake_hard_slash() -> Result<(), PiecrustError> {
     let rng = &mut StdRng::seed_from_u64(0xfeeb);
 
     let vm = &mut rusk_abi::new_ephemeral_vm()

contracts/transfer/src/state.rs

@@ -15,7 +15,7 @@ use alloc::vec::Vec;
 use dusk_bytes::Serializable;
 use poseidon_merkle::Opening as PoseidonOpening;
 use ringbuffer::{ConstGenericRingBuffer, RingBuffer};
-use rusk_abi::{ContractError, ContractId, PublicInput, STAKE_CONTRACT};
+use rusk_abi::{ContractError, ContractId, STAKE_CONTRACT};
 
 use execution_core::{
     transfer::{
@@ -627,17 +627,14 @@ impl TransferState {
 }
 
 fn verify_tx_proof(tx: &PhoenixTransaction) -> bool {
-    let pis: Vec<PublicInput> =
-        tx.public_inputs().iter().map(|pi| pi.into()).collect();
-
     // fetch the verifier data
     let num_inputs = tx.payload().tx_skeleton.nullifiers.len();
     let vd = verifier_data_execute(num_inputs)
         .expect("No circuit available for given number of inputs!")
         .to_vec();
 
     // verify the proof
-    rusk_abi::verify_proof(vd, tx.proof().to_vec(), pis)
+    rusk_abi::verify_proof(vd, tx.proof().to_vec(), tx.public_inputs())
 }
 
 #[cfg(test)]

contracts/transfer/tests/common.rs

@@ -15,7 +15,9 @@ use execution_core::{
     value_commitment, BlsPublicKey, BlsScalar, BlsSecretKey, JubJubScalar,
     Note, PublicKey, SchnorrSecretKey, SecretKey, Sender, TxSkeleton, ViewKey,
 };
-use rusk_abi::{ContractError, ContractId, Error, Session, TRANSFER_CONTRACT};
+use rusk_abi::{
+    ContractError, ContractId, PiecrustError, Session, TRANSFER_CONTRACT,
+};
 
 use dusk_bytes::Serializable;
 use dusk_plonk::prelude::*;
@@ -31,7 +33,7 @@ const GAS_LIMIT: u64 = 0x10_000_000;
 pub fn leaves_from_height(
     session: &mut Session,
     height: u64,
-) -> Result<Vec<TreeLeaf>, Error> {
+) -> Result<Vec<TreeLeaf>, PiecrustError> {
     let (feeder, receiver) = mpsc::channel();
 
     session.feeder_call::<_, ()>(
@@ -51,7 +53,7 @@ pub fn leaves_from_height(
 pub fn leaves_from_pos(
     session: &mut Session,
     pos: u64,
-) -> Result<Vec<TreeLeaf>, Error> {
+) -> Result<Vec<TreeLeaf>, PiecrustError> {
     let (feeder, receiver) = mpsc::channel();
 
     session.feeder_call::<_, ()>(
@@ -68,19 +70,19 @@ pub fn leaves_from_pos(
         .collect())
 }
 
-pub fn num_notes(session: &mut Session) -> Result<u64, Error> {
+pub fn num_notes(session: &mut Session) -> Result<u64, PiecrustError> {
     session
         .call(TRANSFER_CONTRACT, "num_notes", &(), u64::MAX)
         .map(|r| r.data)
 }
 
-pub fn update_root(session: &mut Session) -> Result<(), Error> {
+pub fn update_root(session: &mut Session) -> Result<(), PiecrustError> {
     session
         .call(TRANSFER_CONTRACT, "update_root", &(), GAS_LIMIT)
         .map(|r| r.data)
 }
 
-pub fn root(session: &mut Session) -> Result<BlsScalar, Error> {
+pub fn root(session: &mut Session) -> Result<BlsScalar, PiecrustError> {
     session
         .call(TRANSFER_CONTRACT, "root", &(), GAS_LIMIT)
         .map(|r| r.data)
@@ -89,7 +91,7 @@ pub fn root(session: &mut Session) -> Result<BlsScalar, Error> {
 pub fn account(
     session: &mut Session,
     pk: &BlsPublicKey,
-) -> Result<AccountData, Error> {
+) -> Result<AccountData, PiecrustError> {
     session
         .call(TRANSFER_CONTRACT, "account", pk, GAS_LIMIT)
         .map(|r| r.data)
@@ -98,7 +100,7 @@ pub fn account(
 pub fn contract_balance(
     session: &mut Session,
     contract: ContractId,
-) -> Result<u64, Error> {
+) -> Result<u64, PiecrustError> {
     session
         .call(TRANSFER_CONTRACT, "contract_balance", &contract, GAS_LIMIT)
         .map(|r| r.data)
@@ -107,7 +109,7 @@ pub fn contract_balance(
 pub fn opening(
     session: &mut Session,
     pos: u64,
-) -> Result<Option<PoseidonOpening<(), TRANSFER_TREE_DEPTH>>, Error> {
+) -> Result<Option<PoseidonOpening<(), TRANSFER_TREE_DEPTH>>, PiecrustError> {
     session
         .call(TRANSFER_CONTRACT, "opening", &pos, GAS_LIMIT)
         .map(|r| r.data)
@@ -141,7 +143,7 @@ pub fn prover_verifier(input_notes: usize) -> (Prover, Verifier) {
 pub fn execute(
     session: &mut Session,
     tx: impl Into<Transaction>,
-) -> Result<u64, Error> {
+) -> Result<u64, PiecrustError> {
     let tx = tx.into();
 
     let mut receipt = session.call::<_, Result<Vec<u8>, ContractError>>(

execution-core/src/transfer/transaction.rs

@@ -234,6 +234,15 @@ impl Transaction {
             Self::Moonlight(tx) => tx.to_hash_input_bytes(),
         }
     }
+
+    /// Create the unique transaction hash.
+    #[must_use]
+    pub fn hash(&self) -> BlsScalar {
+        match self {
+            Self::Phoenix(tx) => tx.hash(),
+            Self::Moonlight(tx) => tx.hash(),
+        }
+    }
 }
 
 impl From<PhoenixTransaction> for Transaction {

node-data/src/ledger.rs

@@ -24,7 +24,6 @@ pub use attestation::{
 use crate::bls::PublicKeyBytes;
 use crate::Serializable;
 
-use rusk_abi::hash::Hasher;
 use sha3::Digest;
 use std::io::{self, Read, Write};