refactoring

1 files changed, 55 insertions, 0 deletions

diff --git a/sources/scalac/transformer/matching/TracerInScala.java b/sources/scalac/transformer/matching/TracerInScala.java
new file mode 100644
index 0000000000..069964fb5b
--- /dev/null
+++ b/sources/scalac/transformer/matching/TracerInScala.java
@@ -0,0 +1,55 @@
+package scalac.transformer.matching ;
+
+import scalac.*;
+import scalac.ast.*;
+import scalac.symtab.*;
+import Tree.*;
+import scalac.util.Name;
+import scalac.util.Names;
+
+import scalac.transformer.TransMatch.Matcher ;
+
+import java.util.* ;
+
+import ch.epfl.lamp.util.Position;
+
+
+/** 2do: factor common things of LeftTracerInScala and RightTracerInScala
+ */
+public class TracerInScala extends Autom2Scala {
+
+
+    HashMap helpMap;
+
+      public TracerInScala( DetWordAutom dfa,
+			    Type elementType,
+			    Symbol ownerSym,
+			    CodeFactory cf ) {
+	super( dfa, elementType, ownerSym, cf );
+
+	this.helpMap = new HashMap();
+
+      }
+
+      Tree refHelpVar( Symbol realVar ) {
+            Symbol hv = (Symbol)helpMap.get( realVar );
+            assert hv != null : realVar;
+            return gen.Ident(Position.NOPOS, hv);
+      }
+
+      Tree assignToHelpVar( Symbol realVar, Tree rhs ) {
+            Tree hv = refHelpVar( realVar );
+            return gen.Assign( hv, rhs );
+      }
+
+      Tree bindVar(Symbol realVar) {
+            Tree hv = refHelpVar( realVar );
+            //System.out.println("binding realVar.name "+realVar.name+" type:"+realVar.type()+" to smth");
+            realVar.setOwner( owner );
+            if( realVar.type().isSameAs( elementType ))
+                  return gen.ValDef( realVar, cf.SeqList_head( hv ));
+            else
+                  return gen.ValDef( realVar, hv);
+
+      }
+}