diff --git a/schala-lang/src/lib.rs b/schala-lang/src/lib.rs
index 7c690c5..8cb6f25 100644
--- a/schala-lang/src/lib.rs
+++ b/schala-lang/src/lib.rs
@@ -40,22 +40,22 @@ impl Schala {
   }
 }
 
-fn tokenizing_stage(_handle: &mut Schala, input: &str) -> Result<Vec<tokenizing::Token>, ()> {
+fn tokenizing_stage(_handle: &mut Schala, input: &str, comp: Option<&mut UnfinishedComputation>) -> Result<Vec<tokenizing::Token>, ()> {
   Ok(tokenizing::tokenize(input))
 }
 
-fn parsing_stage(_handle: &mut Schala, input: Vec<tokenizing::Token>) -> Result<parsing::AST, parsing::ParseError> {
+fn parsing_stage(_handle: &mut Schala, input: Vec<tokenizing::Token>, comp: Option<&mut UnfinishedComputation>) -> Result<parsing::AST, parsing::ParseError> {
   parsing::parse(input).0
 }
 
-fn symbol_table_stage(handle: &mut Schala, input: parsing::AST) -> Result<parsing::AST, String> {
+fn symbol_table_stage(handle: &mut Schala, input: parsing::AST, comp: Option<&mut UnfinishedComputation>) -> Result<parsing::AST, String> {
   match handle.type_context.add_top_level_types(&input) {
     Ok(()) => Ok(input),
     Err(msg) => Err(msg)
   }
 }
 
-fn typechecking_stage(handle: &mut Schala, input: parsing::AST) -> Result<parsing::AST, String> {
+fn typechecking_stage(handle: &mut Schala, input: parsing::AST, comp: Option<&mut UnfinishedComputation>) -> Result<parsing::AST, String> {
   match handle.type_context.type_check_ast(&input) {
     Ok(ty) => {
       println!("FINAL TYPE: {:?}", ty);
@@ -70,7 +70,7 @@ fn typechecking_stage(handle: &mut Schala, input: parsing::AST) -> Result<parsin
   }
 }
 
-fn eval_stage(handle: &mut Schala, input: parsing::AST) -> Result<String, String> {
+fn eval_stage(handle: &mut Schala, input: parsing::AST, comp: Option<&mut UnfinishedComputation>) -> Result<String, String> {
   let evaluation_outputs = handle.state.evaluate(input);
   let text_output: Result<Vec<String>, String> = evaluation_outputs
     .into_iter()
diff --git a/schala-repl/src/language.rs b/schala-repl/src/language.rs
index 88df780..72d6986 100644
--- a/schala-repl/src/language.rs
+++ b/schala-repl/src/language.rs
@@ -208,7 +208,8 @@ macro_rules! pass_chain_helper {
     {
       let pass_name = stringify!($pass);
       println!("Running pass {}", pass_name);
-      let output = $pass($state, $input);
+      let debug_pointer: Option<&mut UnfinishedComputation> = None;
+      let output = $pass($state, $input, debug_pointer);
       match output {
         Ok(result) => pass_chain_helper! { $state, $comp; result $(, $rest)* },
         Err(err) => {