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/*******************************************************************************
* Copyright (c) 2000, 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.aspectj.org.eclipse.jdt.internal.compiler.flow;
import org.aspectj.org.eclipse.jdt.internal.compiler.ast.ASTNode;
import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.Binding;
import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.BlockScope;
import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding;
import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
/**
* Reflects the context of code analysis, keeping track of enclosing
* try statements, exception handlers, etc...
*/
public class InitializationFlowContext extends ExceptionHandlingFlowContext {
public int exceptionCount;
public TypeBinding[] thrownExceptions = new TypeBinding[5];
public ASTNode[] exceptionThrowers = new ASTNode[5];
public FlowInfo[] exceptionThrowerFlowInfos = new FlowInfo[5];
public InitializationFlowContext(
FlowContext parent,
ASTNode associatedNode,
BlockScope scope) {
super(
parent,
associatedNode,
Binding.NO_EXCEPTIONS, // no exception allowed by default
scope,
FlowInfo.DEAD_END);
}
public void checkInitializerExceptions(
BlockScope currentScope,
FlowContext initializerContext,
FlowInfo flowInfo) {
for (int i = 0; i < exceptionCount; i++) {
initializerContext.checkExceptionHandlers(
thrownExceptions[i],
exceptionThrowers[i],
exceptionThrowerFlowInfos[i],
currentScope);
}
}
public String individualToString() {
StringBuffer buffer = new StringBuffer("Initialization flow context"); //$NON-NLS-1$
for (int i = 0; i < exceptionCount; i++) {
buffer.append('[').append(thrownExceptions[i].readableName());
buffer.append('-').append(exceptionThrowerFlowInfos[i].toString()).append(']');
}
return buffer.toString();
}
public void recordHandlingException(
ReferenceBinding exceptionType,
UnconditionalFlowInfo flowInfo,
TypeBinding raisedException,
ASTNode invocationSite,
boolean wasMasked) {
// even if unreachable code, need to perform unhandled exception diagnosis
int size = thrownExceptions.length;
if (exceptionCount == size) {
System.arraycopy(
thrownExceptions,
0,
(thrownExceptions = new TypeBinding[size * 2]),
0,
size);
System.arraycopy(
exceptionThrowers,
0,
(exceptionThrowers = new ASTNode[size * 2]),
0,
size);
System.arraycopy(
exceptionThrowerFlowInfos,
0,
(exceptionThrowerFlowInfos = new FlowInfo[size * 2]),
0,
size);
}
thrownExceptions[exceptionCount] = raisedException;
exceptionThrowers[exceptionCount] = invocationSite;
exceptionThrowerFlowInfos[exceptionCount++] = flowInfo.copy();
}
}
