wallet-core: Add functionality to create transaction

contracts/stake/Cargo.toml

@@ -19,6 +19,7 @@ rusk-profile = { version = "0.6", path = "../../rusk-profile" }
 once_cell = { version = "1.9" }
 rusk-abi = { version = "0.13.0-rc", path = "../../rusk-abi", default-features = false, features = ["host"] }
 execution-core = { version = "0.1.0", path = "../../execution-core", features = ["zk"] }
+rusk-prover = { version = "0.3", path = "../../rusk-prover/" }
 rkyv = { version = "0.7", default-features = false, features = ["size_32"] }
 hex = "0.4"
 rand = "0.8"

contracts/stake/tests/common/mod.rs

@@ -6,5 +6,4 @@
 
 pub mod assert;
 pub mod init;
-pub mod prove;
 pub mod utils;

contracts/stake/tests/common/utils.rs

@@ -22,6 +22,7 @@ use execution_core::{
     BlsScalar, ContractError,
 };
 use rusk_abi::{CallReceipt, PiecrustError, Session};
+use rusk_prover::LocalProver;
 
 const POINT_LIMIT: u64 = 0x100000000;
 
@@ -178,7 +179,7 @@ pub fn create_transaction<const I: usize>(
         inputs.push((note.clone(), opening));
     }
 
-    PhoenixTransaction::new::<StdRng, crate::common::prove::CachedProver>(
+    PhoenixTransaction::new::<StdRng, LocalProver>(
         rng,
         sender_sk,
         change_pk,
@@ -192,5 +193,6 @@ pub fn create_transaction<const I: usize>(
         gas_price,
         exec.map(Into::into),
     )
+    .expect("creating the creation shouldn't fail")
     .into()
 }

contracts/transfer/Cargo.toml

@@ -21,7 +21,7 @@ rusk-abi = { version = "0.13.0-rc", path = "../../rusk-abi" }
 rusk-profile = { version = "0.6", path = "../../rusk-profile" }
 once_cell = { version = "1.9" }
 rusk-abi = { version = "0.13.0-rc", path = "../../rusk-abi", default-features = false, features = ["host"] }
-execution-core = { version = "0.1.0", path = "../../execution-core", features = ["zk"] }
+rusk-prover = { version = "0.3", path = "../../rusk-prover/" }
 rkyv = { version = "0.7", default-features = false, features = ["size_32"] }
 bytecheck = { version = "0.6", default-features = false }
 hex = "0.4"

contracts/transfer/build.rs

@@ -31,10 +31,10 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     // Set the ID_[circuit_name] variables
     let circuits = [
-        rusk_profile::Circuit::from_name("ExecuteCircuitOneTwo")?,
-        rusk_profile::Circuit::from_name("ExecuteCircuitTwoTwo")?,
-        rusk_profile::Circuit::from_name("ExecuteCircuitThreeTwo")?,
-        rusk_profile::Circuit::from_name("ExecuteCircuitFourTwo")?,
+        rusk_profile::Circuit::from_name("TxCircuitOneTwo")?,
+        rusk_profile::Circuit::from_name("TxCircuitTwoTwo")?,
+        rusk_profile::Circuit::from_name("TxCircuitThreeTwo")?,
+        rusk_profile::Circuit::from_name("TxCircuitFourTwo")?,
     ];
     for circuit in circuits {
         set_id_env_var(&circuit);

contracts/transfer/src/error.rs

@@ -5,17 +5,19 @@
 // Copyright (c) DUSK NETWORK. All rights reserved.
 
 use core::fmt;
-use execution_core::transfer::phoenix::Error as PhoenixError;
+use execution_core::Error as ExecutionError;
 
 #[derive(Debug, Clone)]
 pub enum Error {
-    Phoenix(PhoenixError),
+    /// Wrapper of execution-core error type.
+    Execution(ExecutionError),
+    /// A contract balance is not sufficient for the requested withdrawal
     NotEnoughBalance,
 }
 
-impl From<PhoenixError> for Error {
-    fn from(e: PhoenixError) -> Self {
-        Self::Phoenix(e)
+impl From<ExecutionError> for Error {
+    fn from(e: ExecutionError) -> Self {
+        Self::Execution(e)
     }
 }
 

contracts/transfer/src/state.rs

@@ -6,7 +6,7 @@
 
 use crate::error::Error;
 use crate::tree::Tree;
-use crate::verifier_data::*;
+use crate::verifier_data::tx_circuit_verifier;
 
 use alloc::collections::btree_map::Entry;
 use alloc::collections::{BTreeMap, BTreeSet};
@@ -681,7 +681,7 @@ impl TransferState {
 fn verify_tx_proof(tx: &PhoenixTransaction) -> bool {
     // fetch the verifier data
     let num_inputs = tx.nullifiers().len();
-    let vd = verifier_data_execute(num_inputs)
+    let vd = tx_circuit_verifier(num_inputs)
         .expect("No circuit available for given number of inputs!")
         .to_vec();
 

contracts/transfer/src/verifier_data.rs

@@ -5,38 +5,38 @@
 // Copyright (c) DUSK NETWORK. All rights reserved.
 
 // Note: all ID environment variables are set in the contracts build script
-const VD_EXEC_1_2: &[u8] = include_bytes!(concat!(
+const TX_CIRCUIT_1_2_VERIFIER: &[u8] = include_bytes!(concat!(
     env!("RUSK_BUILT_KEYS_PATH"),
     "/",
-    env!("ID_EXECUTECIRCUITONETWO"),
+    env!("ID_TXCIRCUITONETWO"),
     ".vd"
 ));
-const VD_EXEC_2_2: &[u8] = include_bytes!(concat!(
+const TX_CIRCUIT_2_2_VERIFIER: &[u8] = include_bytes!(concat!(
     env!("RUSK_BUILT_KEYS_PATH"),
     "/",
-    env!("ID_EXECUTECIRCUITTWOTWO"),
+    env!("ID_TXCIRCUITTWOTWO"),
     ".vd"
 ));
-const VD_EXEC_3_2: &[u8] = include_bytes!(concat!(
+const TX_CIRCUIT_3_2_VERIFIER: &[u8] = include_bytes!(concat!(
     env!("RUSK_BUILT_KEYS_PATH"),
     "/",
-    env!("ID_EXECUTECIRCUITTHREETWO"),
+    env!("ID_TXCIRCUITTHREETWO"),
     ".vd"
 ));
-const VD_EXEC_4_2: &[u8] = include_bytes!(concat!(
+const TX_CIRCUIT_4_2_VERIFIER: &[u8] = include_bytes!(concat!(
     env!("RUSK_BUILT_KEYS_PATH"),
     "/",
-    env!("ID_EXECUTECIRCUITFOURTWO"),
+    env!("ID_TXCIRCUITFOURTWO"),
     ".vd"
 ));
 
 /// Verifier data for the phoenix-circuits.
-pub const fn verifier_data_execute(inputs: usize) -> Option<&'static [u8]> {
+pub const fn tx_circuit_verifier(inputs: usize) -> Option<&'static [u8]> {
     let vd = match inputs {
-        1 => VD_EXEC_1_2,
-        2 => VD_EXEC_2_2,
-        3 => VD_EXEC_3_2,
-        4 => VD_EXEC_4_2,
+        1 => TX_CIRCUIT_1_2_VERIFIER,
+        2 => TX_CIRCUIT_2_2_VERIFIER,
+        3 => TX_CIRCUIT_3_2_VERIFIER,
+        4 => TX_CIRCUIT_4_2_VERIFIER,
         _ => return None,
     };
 

contracts/transfer/tests/common/mod.rs

@@ -4,5 +4,4 @@
 //
 // Copyright (c) DUSK NETWORK. All rights reserved.
 
-pub mod prove;
 pub mod utils;