fix: expect on tuples from data now checks for no more items after the last

crates/aiken-lang/src/gen_uplc.rs

@@ -675,7 +675,8 @@ impl<'a> CodeGenerator<'a> {
                 name != "_"
             } else {
                 true
-            }
+            },
+            "No discard expressions or let bindings should be in the tree at this point."
         );
         if props.value_type.is_data() && props.kind.is_expect() && !tipo.is_data() {
             value = AirTree::cast_from_data(value, tipo.clone());
@@ -689,7 +690,8 @@ impl<'a> CodeGenerator<'a> {
                 location,
                 ..
             } => {
-                if props.kind.is_expect() {
+                assert!(props.kind.is_expect());
+
                 let name = format!(
                     "__expected_by_{}_span_{}_{}",
                     expected_int, location.start, location.end
@@ -705,9 +707,6 @@ impl<'a> CodeGenerator<'a> {
                     int(),
                 );
                 AirTree::assert_bool(true, assignment.hoist_over(expect))
-                } else {
-                    unreachable!("Code Gen should never reach here")
-                }
             }
             Pattern::Var { name, .. } => {
                 if props.full_check {
@@ -1368,7 +1367,7 @@ impl<'a> CodeGenerator<'a> {
             let tuple_access = AirTree::tuple_access(
                 tuple_index_names,
                 tipo.clone(),
-                false,
+                true,
                 AirTree::local_var(tuple_name, tipo.clone()),
             );
 

crates/aiken-project/src/blueprint/validator.rs

@@ -567,8 +567,8 @@ mod tests {
                   "$ref": "#/definitions/Tuple$Int_Int_Int"
                 }
               },
-              "compiledCode": "585f01000032323232322223232323253330084a22930b191919191924c6eb4c038004c038008dd6980600098060011bad300a0013758008646eb8c020008dd69803000991919bb03009002300900130090013758006ae6955ceaab9e5742ae881",
-              "hash": "91b63a27e3a0523a1ccef050cb77537ea0b5e3da2e00a05f7db07db2",
+              "compiledCode": "58a8010000323232323232322223232323253330084a22930b1919191919299980818090010a4c2a6601a921334c6973742f5475706c652f436f6e73747220636f6e7461696e73206d6f7265206974656d73207468616e2065787065637465640016375a602000260200046eb4c038004c038008dd698060009bac00432375c60120046eb4c01c004c8c8cdd81805801180580098058009bac0035734ae7155ceaab9e5573eae855d101",
+              "hash": "d21ff2a6ebd64fb9c3bbfe555b7db490a878566185be79241fc22b1e",
               "definitions": {
                 "ByteArray": {
                   "dataType": "bytes"