--- a/progs/while-arrays/compile_arrays.sc	Sat Nov 09 06:31:45 2024 +0000
+++ b/progs/while-arrays/compile_arrays.sc	Fri Nov 22 12:42:07 2024 +0000
@@ -7,7 +7,7 @@
 //
 // amm compile_arrays.sc
   
-//> using toolkit latest
+//> using toolkit 0.6.0
 
 
 // the abstract syntax trees for WHILE
@@ -90,9 +90,10 @@
 // convenient string interpolations 
 // for generating instructions and labels
 
+
 extension (sc: StringContext) {
-    def i(args: Any*): String = "   " ++ sc.s(args:_*) ++ "\n"
-    def l(args: Any*): String = sc.s(args:_*) ++ ":\n"
+    def i(args: Any*): String = "   " ++ sc.s(args*) ++ "\n"
+    def l(args: Any*): String = sc.s(args*) ++ ":\n"
 }
 
 
@@ -128,7 +129,7 @@
 def compile_stmt(s: Stmt, env: Env) : (String, Env) = s match {
   case Skip => ("", env)
   case Assign(x, a) => {
-     val index = env.getOrElse(x, env.keys.size)
+    val index = env.getOrElse(x, env.keys.size)
     (compile_aexp(a, env) ++ i"istore $index \t\t; $x", env + (x -> index)) 
   } 
   case If(b, bl1, bl2) => {
@@ -218,7 +219,7 @@
 
 // automating the above
 
-import os._
+import os.*
 
 def compile_to_file(bl: Block, class_name: String) : Unit = 
   write.over(pwd / s"$class_name.j", compile(bl, class_name))