feat: Emit keyword

crates/aiken-lang/src/gen_uplc.rs

@@ -530,6 +530,14 @@ impl<'a> CodeGenerator<'a> {
                     self.build(then, module_build_name, &[]),
                 ),
 
+                TypedExpr::Emit {
+                    tipo, then, text, ..
+                } => AirTree::emit(
+                    self.build(text, module_build_name, &[]),
+                    tipo.clone(),
+                    self.build(then, module_build_name, &[]),
+                ),
+
                 TypedExpr::When {
                     tipo,
                     subject,
@@ -5310,6 +5318,15 @@ impl<'a> CodeGenerator<'a> {
 
                 Some(term)
             }
+            Air::Emit { .. } => {
+                let text = arg_stack.pop().unwrap();
+
+                let term = arg_stack.pop().unwrap();
+
+                let term = term.delayed_trace(text);
+
+                Some(term)
+            }
             Air::ErrorTerm { validator, .. } => {
                 if validator {
                     Some(Term::Error.apply(Term::Error.force()))