Add functionality for generator to produce a list of T2 program as st…

…ring (#11)

src/main/scala/fhetest/Phase/Generate.scala

@@ -15,8 +15,28 @@ import scala.jdk.CollectionConverters._
 import scala.util.Random
 
 case class Generate(encType: ENC_TYPE) {
+  // TODO : This boilerplate code is really ugly. But I cannot find a better way to do this.
+  val baseStrFront = encType match {
+    case ENC_TYPE.ENC_INT =>
+      "int main(void) { EncInt x, y; int c; "
+    case ENC_TYPE.ENC_DOUBLE =>
+      "int main(void) { EncDouble x, y; int c; "
+    case ENC_TYPE.None => throw new Exception("encType is not set")
+  }
+  val baseStrBack = " print_batched (x, 10); return 0; } "
+  val baseStr = baseStrFront + baseStrBack
+
   val symbolTable = boilerplate()._2
 
+  def apply(n: Int): List[String] = {
+    for {
+      template <- allTempletes.take(n).toList
+    } yield {
+      val concretized = concretizeTemplate(template)
+      toStringWithBaseStr(concretized)
+    }
+  }
+
   // This is for testing purpose
   def show(backends: List[Backend], n: Int) =
     for {
@@ -69,27 +89,6 @@ case class Generate(encType: ENC_TYPE) {
     case _                   => throw new Exception("encType is not set")
 
   def boilerplate(): (Goal, SymbolTable, _) =
-    val baseStr = encType match {
-      case ENC_TYPE.ENC_INT =>
-        """
-        int main(void) {
-          EncInt x, y;
-          int c;
-          print_batched (x, 10);
-          return 0;
-        }
-      """
-      case ENC_TYPE.ENC_DOUBLE =>
-        """
-        int main(void) {
-          EncDouble x, y;
-          int c;
-          print_batched (x, 10);
-          return 0;
-        }
-      """
-      case ENC_TYPE.None => throw new Exception("encType is not set")
-    }
     val baseStream = new ByteArrayInputStream(baseStr.getBytes("UTF-8"))
     Parse(baseStream)
 
@@ -160,7 +159,9 @@ case class Generate(encType: ENC_TYPE) {
   def concretize(s: Stmt) = parseStmt(toString(s))
 
   type Templete = List[Stmt]
-  def toString(t: Templete): String = t.map(toString).mkString("\n")
+  def toString(t: Templete): String = t.map(toString).mkString("")
+  def toStringWithBaseStr(t: Templete): String =
+    baseStrFront + toString(t) + baseStrBack
   def getMulDepth(t: Templete): Int = t.count {
     case Mul(_, _) => true; case _ => false
   }