From dc0594eee9776c26f7eaee73b7cc9731338acb36 Mon Sep 17 00:00:00 2001
From: buraq <buraq@epfl.ch>
Date: Wed, 2 Jul 2003 16:57:17 +0000
Subject: cleaned up constructor

---
 .../scalac/transformer/matching/Autom2Scala.java   |  5 +-
 .../scalac/transformer/matching/CodeFactory.java   | 73 +++++++---------------
 2 files changed, 25 insertions(+), 53 deletions(-)

diff --git a/sources/scalac/transformer/matching/Autom2Scala.java b/sources/scalac/transformer/matching/Autom2Scala.java
index 140d8a99c4..5c1dcd2596 100644
--- a/sources/scalac/transformer/matching/Autom2Scala.java
+++ b/sources/scalac/transformer/matching/Autom2Scala.java
@@ -155,8 +155,7 @@ public class Autom2Scala  {
             return cf.Block( Position.NOPOS, new Tree[] {
 		cf.gen.ValDef( 0,
 			       this.curSym,
-			       cf._cur( _iter() )),
-		cf._next( _iter() ) }, Type.NoType );
+			       cf._next( _iter() )) }, Type.NoType );
       }
 
       Tree currentElem() {
@@ -320,7 +319,7 @@ public class Autom2Scala  {
       Tree wrapStateBody( Tree stateBody,
                           Tree elseBody,
                           Tree runFinished, int i ) {
-            stateBody = cf.If( cf._noMoreCur( _iter() ),
+            stateBody = cf.If( cf._not_hasNext( _iter() ),
                                runFinished,
                                cf.Block( stateBody.pos,
                                          new Tree[] {
diff --git a/sources/scalac/transformer/matching/CodeFactory.java b/sources/scalac/transformer/matching/CodeFactory.java
index 73500a4004..9c2a828cbe 100644
--- a/sources/scalac/transformer/matching/CodeFactory.java
+++ b/sources/scalac/transformer/matching/CodeFactory.java
@@ -20,45 +20,8 @@ import Tree.*;
 
 class CodeFactory extends PatternTool {
 
-    /** I changed the names so that the compiler is still usable. -- Matthias
-     */
-    static final Name SEQ_N          = Name.fromString("scala.Seq");
-    static final Name SEQ_ITER_N     = Name.fromString("scala.Iterator");
-    static final Name NEW_ITERATOR_N = Name.fromString("elements");
-    static final Name HAS_CUR_N      = Name.fromString("hasNext");
-    static final Name CUR_N          = Name.fromString("next");
-    static final Name NEXT_N         = Name.fromString("next");
-
-    /** symbol of `scala.SequenceIterator'
-     */
-    Symbol seqIterSym;
-
-    /** symbol of `scala.Sequence.newIterator'
-     */
-    Symbol newIterSym;
-
-    Symbol curSym;
-    Symbol hasCurSym;
-    Symbol nextSym;
-
     public CodeFactory( Unit unit, Infer infer ) {
 	super( unit, infer );
-
-	// get `Sequence:newIterator'
-	Symbol sequenceSym = defs.getClass( SEQ_N );
-
-	Scope scp = sequenceSym.members();
-
-	this.newIterSym = scp.lookup/*Term */( NEW_ITERATOR_N );
-	// commented out the next line. -- Matthias
-	// assert !( newIterSym == Symbol.NONE ) : " did not find newIterator ";
-
-	this.seqIterSym = defs.getType( SEQ_ITER_N ).symbol();
-
-	scp = seqIterSym.members();
-	curSym = scp.lookup/*Term*/ ( CUR_N );
-	// commented out the next line. -- Matthias
-	//assert !( curSym == Symbol.NONE ) : "did not find cur";
     }
 
     // --------- these are new
@@ -102,6 +65,8 @@ class CodeFactory extends PatternTool {
     /**                       `SequenceIterator[ elemType ]' // TODO: Move to TypeFactory
      */
     Type _seqIterType( Type elemType ) {
+	Symbol seqIterSym = defs.getType( Names.scala_Iterator ).symbol();
+
 	return Type.TypeRef( defs.SCALA_TYPE/*PREFIX*/,
 			     seqIterSym,
 			     new Type[] { elemType });
@@ -118,6 +83,11 @@ class CodeFactory extends PatternTool {
 	//System.out.println( "elemType:"+elemType );
 
 	//Tree t1 = gen.Select(seqObj, newIterSym);
+
+	Scope scp = defs.getClass( Names.scala_Seq ) /* sequenceSym */
+	    .members();
+	Symbol newIterSym = scp.lookup/*Term */( Names.elements );
+
 	Tree t1 = make.Select( Position.NOPOS, seqObj, newIterSym.name )
 	    .setSymbol( newIterSym )
 	    .setType( Type.MethodType(new Symbol[] {},_seqIterType( elemType )));
@@ -148,34 +118,37 @@ class CodeFactory extends PatternTool {
 
     }
 
-    /** `it.cur()'
-     */
-    Tree _cur( Tree iter ) {
-	Type elemType = getElemType( iter.type() );
-	return _applyNone( gen.Select( iter, curSym ).setType( elemType ))
-	    .setType( elemType );
-    }
-
     /** `it.next()'
      */
     public Tree _next( Tree iter ) {
 	Type elemType = getElemType( iter.type() );
 
+	Scope scp = defs.getType( Names.scala_Iterator ).symbol() /* seqIterSym */
+	    .members();
+
+	Symbol nextSym = scp.lookup( Names.next );
+
 	return _applyNone( gen.Select( iter, nextSym ))
 	    .setType( iter.type() );
     }
 
-    /** `it.hasCur()'
+    /** `it.hasNext()'
      */
-    public Tree _hascur( Tree iter ) {
-	return _applyNone( gen.Select( iter, hasCurSym ))
+    public Tree _hasNext( Tree iter ) {
+
+	Scope scp = defs.getType( Names.scala_Iterator ).symbol() /* seqIterSym */
+	    .members();
+
+	Symbol hasNextSym = scp.lookup( Names.hasNext );
+
+	return _applyNone( gen.Select( iter, hasNextSym ))
 	    .setType( defs.BOOLEAN_TYPE );
     }
 
     /** `!it.hasCur()'
      */
-    public Tree _noMoreCur( Tree iter ) {
-	return _applyNone( gen.Select( _hascur( iter ), notSym ))
+    public Tree _not_hasNext( Tree iter ) {
+	return _applyNone( gen.Select( _hasNext( iter ), notSym ))
 	    .setType( defs.BOOLEAN_TYPE );
     }
 
-- 
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