totally new file layout
[org.ibex.tool.git] / src / org / eclipse / jdt / internal / compiler / flow / LoopingFlowContext.java
diff --git a/src/org/eclipse/jdt/internal/compiler/flow/LoopingFlowContext.java b/src/org/eclipse/jdt/internal/compiler/flow/LoopingFlowContext.java
deleted file mode 100644 (file)
index 450bdff..0000000
+++ /dev/null
@@ -1,153 +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.ast.ASTNode;
-import org.eclipse.jdt.internal.compiler.ast.Reference;
-import org.eclipse.jdt.internal.compiler.codegen.Label;
-import org.eclipse.jdt.internal.compiler.lookup.BlockScope;
-import org.eclipse.jdt.internal.compiler.lookup.FieldBinding;
-import org.eclipse.jdt.internal.compiler.lookup.LocalVariableBinding;
-import org.eclipse.jdt.internal.compiler.lookup.Scope;
-import org.eclipse.jdt.internal.compiler.lookup.VariableBinding;
-
-/**
- * Reflects the context of code analysis, keeping track of enclosing
- *     try statements, exception handlers, etc...
- */
-public class LoopingFlowContext extends SwitchFlowContext {
-       
-       public Label continueLabel;
-       public UnconditionalFlowInfo initsOnContinue = FlowInfo.DEAD_END;
-       Reference finalAssignments[];
-       VariableBinding finalVariables[];
-       int assignCount = 0;
-       Scope associatedScope;
-       
-       public LoopingFlowContext(
-               FlowContext parent,
-               ASTNode associatedNode,
-               Label breakLabel,
-               Label continueLabel,
-               Scope associatedScope) {
-               super(parent, associatedNode, breakLabel);
-               this.continueLabel = continueLabel;
-               this.associatedScope = associatedScope;
-       }
-       
-       public void complainOnFinalAssignmentsInLoop(
-               BlockScope scope,
-               FlowInfo flowInfo) {
-               for (int i = 0; i < assignCount; i++) {
-                       VariableBinding variable = finalVariables[i];
-                       if (variable == null) continue;
-                       boolean complained = false; // remember if have complained on this final assignment
-                       if (variable instanceof FieldBinding) {
-                               if (flowInfo.isPotentiallyAssigned((FieldBinding) variable)) {
-                                       complained = true;
-                                       scope.problemReporter().duplicateInitializationOfBlankFinalField(
-                                               (FieldBinding) variable,
-                                               finalAssignments[i]);
-                               }
-                       } else {
-                               if (flowInfo.isPotentiallyAssigned((LocalVariableBinding) variable)) {
-                                       complained = true;
-                                       scope.problemReporter().duplicateInitializationOfFinalLocal(
-                                               (LocalVariableBinding) variable,
-                                               finalAssignments[i]);
-                               }
-                       }
-                       // any reference reported at this level is removed from the parent context where it 
-                       // could also be reported again
-                       if (complained) {
-                               FlowContext context = parent;
-                               while (context != null) {
-                                       context.removeFinalAssignmentIfAny(finalAssignments[i]);
-                                       context = context.parent;
-                               }
-                       }
-               }
-       }
-
-       public Label continueLabel() {
-               return continueLabel;
-       }
-
-       public String individualToString() {
-               StringBuffer buffer = new StringBuffer("Looping flow context"); //$NON-NLS-1$
-               buffer.append("[initsOnBreak -").append(initsOnBreak.toString()).append(']'); //$NON-NLS-1$
-               buffer.append("[initsOnContinue -").append(initsOnContinue.toString()).append(']'); //$NON-NLS-1$
-               return buffer.toString();
-       }
-
-       public boolean isContinuable() {
-               return true;
-       }
-
-       public boolean isContinuedTo() {
-               return initsOnContinue != FlowInfo.DEAD_END;
-       }
-
-       public void recordContinueFrom(FlowInfo flowInfo) {
-
-               if (!flowInfo.isReachable()) return;
-               if (initsOnContinue == FlowInfo.DEAD_END) {
-                       initsOnContinue = flowInfo.copy().unconditionalInits();
-               } else {
-                       initsOnContinue = initsOnContinue.mergedWith(flowInfo.copy().unconditionalInits());
-               }
-       }
-
-       boolean recordFinalAssignment(
-               VariableBinding binding,
-               Reference finalAssignment) {
-
-               // do not consider variables which are defined inside this loop
-               if (binding instanceof LocalVariableBinding) {
-                       Scope scope = ((LocalVariableBinding) binding).declaringScope;
-                       while ((scope = scope.parent) != null) {
-                               if (scope == associatedScope)
-                                       return false;
-                       }
-               }
-               if (assignCount == 0) {
-                       finalAssignments = new Reference[5];
-                       finalVariables = new VariableBinding[5];
-               } else {
-                       if (assignCount == finalAssignments.length)
-                               System.arraycopy(
-                                       finalAssignments,
-                                       0,
-                                       (finalAssignments = new Reference[assignCount * 2]),
-                                       0,
-                                       assignCount);
-                       System.arraycopy(
-                               finalVariables,
-                               0,
-                               (finalVariables = new VariableBinding[assignCount * 2]),
-                               0,
-                               assignCount);
-               }
-               finalAssignments[assignCount] = finalAssignment;
-               finalVariables[assignCount++] = binding;
-               return true;
-       }
-
-       void removeFinalAssignmentIfAny(Reference reference) {
-               for (int i = 0; i < assignCount; i++) {
-                       if (finalAssignments[i] == reference) {
-                               finalAssignments[i] = null;
-                               finalVariables[i] = null;
-                               return;
-                       }
-               }
-       }
-}