totally new file layout

[org.ibex.tool.git] / src / org / eclipse / jdt / internal / compiler / flow / FlowInfo.java

diff --git a/src/org/eclipse/jdt/internal/compiler/flow/FlowInfo.java b/src/org/eclipse/jdt/internal/compiler/flow/FlowInfo.java
deleted file mode 100644 (file)
index 1736a5c..0000000
--- a/src/org/eclipse/jdt/internal/compiler/flow/FlowInfo.java
+++ /dev/null
@@ -1,144 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2000, 2004 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials 
- * are made available under the terms of the Common Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- * 
- * Contributors:
- *     IBM Corporation - initial API and implementation
- *******************************************************************************/
-package org.eclipse.jdt.internal.compiler.flow;
-
-import org.eclipse.jdt.internal.compiler.lookup.FieldBinding;
-import org.eclipse.jdt.internal.compiler.lookup.LocalVariableBinding;
-
-public abstract class FlowInfo {
-
-       public final static int REACHABLE = 0;
-       public final static int UNREACHABLE = 1; 
-       
-       public static final UnconditionalFlowInfo DEAD_END; // Represents a dead branch status of initialization
-       static {
-               DEAD_END = new UnconditionalFlowInfo();
-               DEAD_END.reachMode = UNREACHABLE;
-       }
-       abstract public FlowInfo addInitializationsFrom(FlowInfo otherInits);
-
-       abstract public FlowInfo addPotentialInitializationsFrom(FlowInfo otherInits);
-
-       public FlowInfo asNegatedCondition() {
-
-               return this;
-       }
-
-       public static FlowInfo conditional(FlowInfo initsWhenTrue, FlowInfo initsWhenFalse){
-
-               // if (initsWhenTrue.equals(initsWhenFalse)) return initsWhenTrue; -- could optimize if #equals is defined
-               return new ConditionalFlowInfo(initsWhenTrue, initsWhenFalse);
-       }
-
-       abstract public FlowInfo copy();
-
-       public static UnconditionalFlowInfo initial(int maxFieldCount) {
-               UnconditionalFlowInfo info = new UnconditionalFlowInfo();
-               info.maxFieldCount = maxFieldCount;
-               return info;
-       }
-
-       abstract public FlowInfo initsWhenFalse();
-
-       abstract public FlowInfo initsWhenTrue();
-
-       /**
-        * Check status of definite assignment for a field.
-        */
-        abstract public boolean isDefinitelyAssigned(FieldBinding field);   
-
-       /**
-        * Check status of definite assignment for a local.
-        */
-       public abstract boolean isDefinitelyAssigned(LocalVariableBinding local);
-
-       //abstract public int reachMode(); 
-
-       /**
-        * Check status of potential assignment for a field.
-        */
-        abstract public boolean isPotentiallyAssigned(FieldBinding field);   
-
-       /**
-        * Check status of potential assignment for a local variable.
-        */
-
-        abstract public boolean isPotentiallyAssigned(LocalVariableBinding field);   
-
-       abstract public boolean isReachable();
-       
-       /**
-        * Record a field got definitely assigned.
-        */
-       abstract public void markAsDefinitelyAssigned(FieldBinding field);
-
-       /**
-        * Record a local got definitely assigned.
-        */
-       abstract public void markAsDefinitelyAssigned(LocalVariableBinding local);
-
-       /**
-        * Clear the initialization info for a field
-        */
-       abstract public void markAsDefinitelyNotAssigned(FieldBinding field);
-
-       /**
-        * Clear the initialization info for a local variable
-        */
-       abstract public void markAsDefinitelyNotAssigned(LocalVariableBinding local);
-
-       /**
-        * Merge branches using optimized boolean conditions
-        */
-       public static FlowInfo mergedOptimizedBranches(FlowInfo initsWhenTrue, boolean isOptimizedTrue, FlowInfo initsWhenFalse, boolean isOptimizedFalse, boolean allowFakeDeadBranch) {
-               FlowInfo mergedInfo;
-               if (isOptimizedTrue){
-                       if (initsWhenTrue == FlowInfo.DEAD_END && allowFakeDeadBranch) {
-                               mergedInfo = initsWhenFalse.setReachMode(FlowInfo.UNREACHABLE);
-                       } else {
-                               mergedInfo = initsWhenTrue.addPotentialInitializationsFrom(initsWhenFalse);
-                       }
-
-               } else if (isOptimizedFalse) {
-                       if (initsWhenFalse == FlowInfo.DEAD_END && allowFakeDeadBranch) {
-                               mergedInfo = initsWhenTrue.setReachMode(FlowInfo.UNREACHABLE);
-                       } else {
-                               mergedInfo = initsWhenFalse.addPotentialInitializationsFrom(initsWhenTrue);
-                       }
-
-               } else {
-                       mergedInfo = initsWhenTrue.unconditionalInits().mergedWith(initsWhenFalse.unconditionalInits());
-               }
-               return mergedInfo;
-       }
-       
-       abstract public int reachMode();
-
-       abstract public FlowInfo setReachMode(int reachMode);
-
-       /**
-        * Returns the receiver updated in the following way: <ul>
-        * <li> intersection of definitely assigned variables, 
-        * <li> union of potentially assigned variables.
-        * </ul>
-        */
-       abstract public UnconditionalFlowInfo mergedWith(UnconditionalFlowInfo otherInits);
-
-       public String toString(){
-
-               if (this == DEAD_END){
-                       return "FlowInfo.DEAD_END"; //$NON-NLS-1$
-               }
-               return super.toString();
-       }
-
-       abstract public UnconditionalFlowInfo unconditionalInits();
-}