feat: eval should take initial budget

crates/cli/src/cmd/uplc/eval.rs

@@ -61,7 +61,9 @@ pub fn exec(
         program = program.apply_term(&term);
     }
 
-    let (term, cost, logs) = program.eval();
+    let budget = ExBudget::default();
+
+    let (term, cost, logs) = program.eval(budget);
 
     match term {
         Ok(term) => {
@@ -74,8 +76,6 @@ pub fn exec(
         }
     }
 
-    let budget = ExBudget::default();
-
     println!(
         "\nCosts\n-----\ncpu: {}\nmemory: {}",
         budget.cpu - cost.cpu,

crates/uplc/src/ast.rs

@@ -495,6 +495,7 @@ impl From<Term<FakeNamedDeBruijn>> for Term<NamedDeBruijn> {
 impl Program<NamedDeBruijn> {
     pub fn eval(
         &self,
+        initial_budget: ExBudget,
     ) -> (
         Result<Term<NamedDeBruijn>, crate::machine::Error>,
         ExBudget,
@@ -503,7 +504,7 @@ impl Program<NamedDeBruijn> {
         let mut machine = Machine::new(
             Language::PlutusV2,
             CostModel::default(),
-            ExBudget::default(),
+            initial_budget,
             200,
         );
 
@@ -558,6 +559,7 @@ impl Program<NamedDeBruijn> {
 impl Program<DeBruijn> {
     pub fn eval(
         &self,
+        initial_budget: ExBudget,
     ) -> (
         Result<Term<NamedDeBruijn>, crate::machine::Error>,
         ExBudget,
@@ -565,7 +567,7 @@ impl Program<DeBruijn> {
     ) {
         let program: Program<NamedDeBruijn> = self.clone().into();
 
-        program.eval()
+        program.eval(initial_budget)
     }
 }
 

crates/uplc/src/tx/eval.rs

@@ -786,7 +786,7 @@ pub fn eval_redeemer(
 
                         program.eval_as(&Language::PlutusV2, costs, initial_budget)
                     } else {
-                        program.eval()
+                        program.eval(ExBudget::default())
                     };
 
                     match result {
@@ -889,7 +889,7 @@ pub fn eval_redeemer(
 
                         program.eval_as(&Language::PlutusV2, costs, initial_budget)
                     } else {
-                        program.eval()
+                        program.eval(ExBudget::default())
                     };
 
                     match result {