/******************************************************************************* | |
* 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.wst.jsdt.internal.compiler.flow; | |
import org.eclipse.wst.jsdt.internal.compiler.ast.ASTNode; | |
import org.eclipse.wst.jsdt.internal.compiler.codegen.Label; | |
/** | |
* Reflects the context of code analysis, keeping track of enclosing | |
* try statements, exception handlers, etc... | |
*/ | |
public class SwitchFlowContext extends FlowContext { | |
public Label breakLabel; | |
public UnconditionalFlowInfo initsOnBreak = FlowInfo.DEAD_END; | |
public SwitchFlowContext( | |
FlowContext parent, | |
ASTNode associatedNode, | |
Label breakLabel) { | |
super(parent, associatedNode); | |
this.breakLabel = breakLabel; | |
} | |
public Label breakLabel() { | |
return breakLabel; | |
} | |
public String individualToString() { | |
StringBuffer buffer = new StringBuffer("Switch flow context"); //$NON-NLS-1$ | |
buffer.append("[initsOnBreak -").append(initsOnBreak.toString()).append(']'); //$NON-NLS-1$ | |
return buffer.toString(); | |
} | |
public boolean isBreakable() { | |
return true; | |
} | |
public void recordBreakFrom(FlowInfo flowInfo) { | |
if (initsOnBreak == FlowInfo.DEAD_END) { | |
initsOnBreak = flowInfo.copy().unconditionalInits(); | |
} else { | |
initsOnBreak = initsOnBreak.mergedWith(flowInfo.copy().unconditionalInits()); | |
} | |
} | |
} |