* net/loveruby/cflat/ast/Scope.java: use LinkedHashMap to unify entities and entitiesMap (entities should be ordered).

* net/loveruby/cflat/ast/Frame.java: ditto.
* net/loveruby/cflat/ast/ToplevelScope.java: ditto.
* net/loveruby/cflat/ast/Scope.java: remove unused method #entities.  Use #variables instead.
* net/loveruby/cflat/ast/Frame.java: ditto.
* net/loveruby/cflat/ast/ConstantTable.java: use 
* net/loveruby/cflat/compiler/TypeResolver.java: remove useless code.


git-svn-id: file:///Users/aamine/c/gitwork/public/cbc/trunk@3887 1b9489fe-b721-0410-924e-b54b9192deb8

ChangeLog

@@ -1,3 +1,22 @@
+Mon Feb 11 03:59:19 2008  Minero Aoki  <aamine@loveruby.net>
+
+	* net/loveruby/cflat/ast/Scope.java: use LinkedHashMap to unify
+	  entities and entitiesMap (entities should be ordered).
+
+	* net/loveruby/cflat/ast/Frame.java: ditto.
+
+	* net/loveruby/cflat/ast/ToplevelScope.java: ditto.
+
+	* net/loveruby/cflat/ast/Scope.java: remove unused method
+	  #entities.  Use #variables instead.
+
+	* net/loveruby/cflat/ast/Frame.java: ditto.
+
+	* net/loveruby/cflat/ast/ConstantTable.java: use
+
+	* net/loveruby/cflat/compiler/TypeResolver.java: remove useless
+	  code.
+
 Mon Feb 11 03:08:16 2008  Minero Aoki  <aamine@loveruby.net>
 
 	* net/loveruby/cflat/ast/Scope.java: ban all allocate* methods,

net/loveruby/cflat/ast/ConstantTable.java

@@ -1,13 +1,12 @@
 package net.loveruby.cflat.ast;
 import java.util.*;
 
-public class ConstantTable
-{
-    protected HashMap table;
+public class ConstantTable {
+    protected Map table;
     protected long id;
 
     public ConstantTable() {
-        table = new HashMap();
+        table = new LinkedHashMap();
         id = 0;
     }
 

net/loveruby/cflat/ast/Frame.java

@@ -11,7 +11,7 @@ public class Frame extends Scope {
         Iterator scopes = allChildren();
         while (scopes.hasNext()) {
             Scope s = (Scope)scopes.next();
-            Iterator vars = s.variables();
+            Iterator vars = s.entities.values().iterator();
             while (vars.hasNext()) {
                 DefinedVariable var = (DefinedVariable)vars.next();
                 if (var.isPrivate()) {
@@ -27,7 +27,7 @@ public class Frame extends Scope {
     }
 
     public Iterator localVariables() {
-        return bodyScope().entities();
+        return bodyScope().variables();
     }
 
     private Scope bodyScope() {

net/loveruby/cflat/ast/Scope.java

@@ -6,8 +6,7 @@ import java.util.*;
 public class Scope {
     protected Scope parent;
     protected List children;
-    protected List entities;
-    protected Map entitiesMap;
+    protected Map entities;
     protected long numAllEntities;
 
     public Scope(Scope up) {
@@ -15,8 +14,7 @@ public class Scope {
         if (up != null) up.addChild(this);
         children = new ArrayList();
         numAllEntities = -1;
-        entities = new ArrayList();
-        entitiesMap = new HashMap();
+        entities = new LinkedHashMap();
     }
 
     public boolean isToplevel() {
@@ -61,21 +59,20 @@ public class Scope {
     /** Declare variable or function in this scope. */
     // #@@range/declareEntity{
     public void declareEntity(Entity ent) {
-        if (entitiesMap.containsKey(ent.name())) {
+        if (entities.containsKey(ent.name())) {
             throw new Error("duplicated entity: " + ent.name());
         }
-        entities.add(ent);
-        entitiesMap.put(ent.name(), ent);
+        entities.put(ent.name(), ent);
     }
     // #@@}
 
     public boolean isDefinedLocally(String name) {
-        return entitiesMap.containsKey(name);
+        return entities.containsKey(name);
     }
 
     // #@@range/get{
     public Entity get(String name) throws SemanticException {
-        Entity ent = (Entity)entitiesMap.get(name);
+        Entity ent = (Entity)entities.get(name);
         if (ent != null) {
             return ent;
         }
@@ -85,26 +82,30 @@ public class Scope {
     }
     // #@@}
 
-    // Returns all function local variables defined in this scope.
-    // Does includes all nested local variables.
-    // Does NOT include static local variables.
-    public Iterator allVariables() {
-        return allEntities().iterator();
-    }
-
-    public Iterator variables() {
-        return entities();
-    }
-
     public long numEntities() {
         return entities.size();
     }
 
-    // Returns local variables defined in this scope itself.
-    // Does NOT include nested local variables.
+    // Returns local variables defined in this scope.
+    // Does includes all nested local variables.
     // Does NOT include static local variables.
-    public Iterator entities() {
-        return entities.iterator();
+    public Iterator variables() {
+        return variablesList().iterator();
+    }
+
+    protected List variablesList() {
+        List result = new ArrayList();
+        Iterator ents = entities.values().iterator();
+        while (ents.hasNext()) {
+            Entity ent = (Entity)ents.next();
+            if (ent instanceof DefinedVariable) {
+                DefinedVariable var = (DefinedVariable)ent;
+                if (!var.isPrivate()) {
+                    result.add(var);
+                }
+            }
+        }
+        return result;
     }
 
     public long numAllEntities() {
@@ -120,27 +121,34 @@ public class Scope {
         return numAllEntities;
     }
 
+    // Returns all function local variables defined in this scope.
+    // Does includes all nested local variables.
+    // Does NOT include static local variables.
+    public Iterator allVariables() {
+        return allEntities().iterator();
+    }
+
     protected List allEntities() {
         List result = new ArrayList();
-        Iterator cs = allChildren();
-        while (cs.hasNext()) {
-            Scope c = (Scope)cs.next();
-            result.addAll(c.entities);
+        Iterator scopes = allChildren();
+        while (scopes.hasNext()) {
+            Scope s = (Scope)scopes.next();
+            result.addAll(s.variablesList());
         }
         return result;
     }
 
     public void checkReferences(ErrorHandler h) {
-        Iterator ents = entities.iterator();
+        Iterator ents = entities.values().iterator();
         while (ents.hasNext()) {
             Entity ent = (Entity)ents.next();
             if (ent.isDefined() && ent.isPrivate() && !ent.isRefered()) {
                 h.warn(ent.location(), "unused variable: " + ent.name());
             }
         }
-        Iterator cs = children.iterator();
-        while (cs.hasNext()) {
-            Scope s = (Scope)cs.next();
+        Iterator scopes = children.iterator();
+        while (scopes.hasNext()) {
+            Scope s = (Scope)scopes.next();
             s.checkReferences(h);
         }
     }

net/loveruby/cflat/ast/ToplevelScope.java

@@ -17,7 +17,7 @@ public class ToplevelScope extends Scope {
     /** Searches and gets entity searching scopes upto ToplevelScope. */
     // #@@range/get{
     public Entity get(String name) throws SemanticException {
-        Entity ent = (Entity)entitiesMap.get(name);
+        Entity ent = (Entity)entities.get(name);
         if (ent == null) {
             throw new SemanticException("unresolved reference: " + name);
         }
@@ -25,10 +25,22 @@ public class ToplevelScope extends Scope {
     }
     // #@@}
 
+    public Iterator variables() {
+        throw new Error("TopScope#variables called");
+    }
+
     public Iterator allVariables() {
         throw new Error("TopScope#allVariables called");
     }
 
+    public long numAllEntities() {
+        throw new Error("TopScope#numAllEntities called");
+    }
+
+    protected List allEntities() {
+        throw new Error("TopScope#allEntities called");
+    }
+
     protected List staticLocalVariables() {
         if (staticLocalVariables == null) {
             staticLocalVariables = new ArrayList();
@@ -61,7 +73,7 @@ public class ToplevelScope extends Scope {
     public List globalVariables() {
         List result = new ArrayList();
         List src = new ArrayList();
-        src.addAll(entities);
+        src.addAll(entities.values());
         src.addAll(staticLocalVariables());
         Iterator ents = src.iterator();
         while (ents.hasNext()) {
@@ -82,7 +94,7 @@ public class ToplevelScope extends Scope {
     public List commonSymbols() {
         List result = new ArrayList();
         List src = new ArrayList();
-        src.addAll(entities);
+        src.addAll(entities.values());
         src.addAll(staticLocalVariables());
         Iterator ents = src.iterator();
         while (ents.hasNext()) {

net/loveruby/cflat/compiler/TypeResolver.java

@@ -76,7 +76,6 @@ public class TypeResolver extends Visitor {
 
     public void visit(DefinedFunction func) {
         resolveFunctionHeader(func);
-        //resolveLocalVariables(func);
         visitNode(func.body());
     }
 
@@ -93,13 +92,6 @@ public class TypeResolver extends Visitor {
         }
     }
 
-    protected void resolveLocalVariables(DefinedFunction func) {
-        Iterator vars = func.localVariables();
-        while (vars.hasNext()) {
-            visit((DefinedVariable)vars.next());
-        }
-    }
-
     public void visit(AddressNode node) {
         super.visit(node);
         // to avoid SemanticError which occurs when getting type of