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/*******************************************************************************
* Copyright (c) 2000, 2009 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.eclipse.jdt.internal.compiler.flow;
import org.eclipse.jdt.internal.compiler.ast.ASTNode;
import org.eclipse.jdt.internal.compiler.lookup.Binding;
import org.eclipse.jdt.internal.compiler.lookup.BlockScope;
import org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding;
import 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 FlowInfo initsBeforeContext;
public InitializationFlowContext(FlowContext parent, ASTNode associatedNode, FlowInfo initsBeforeContext, FlowContext initializationParent, BlockScope scope) {
super(
parent,
associatedNode,
Binding.NO_EXCEPTIONS, // no exception allowed by default
initializationParent,
scope,
FlowInfo.DEAD_END);
this.initsBeforeContext = initsBeforeContext;
}
public void checkInitializerExceptions(
BlockScope currentScope,
FlowContext initializerContext,
FlowInfo flowInfo) {
for (int i = 0; i < this.exceptionCount; i++) {
initializerContext.checkExceptionHandlers(
this.thrownExceptions[i],
this.exceptionThrowers[i],
this.exceptionThrowerFlowInfos[i],
currentScope);
}
}
public String individualToString() {
StringBuffer buffer = new StringBuffer("Initialization flow context"); //$NON-NLS-1$
for (int i = 0; i < this.exceptionCount; i++) {
buffer.append('[').append(this.thrownExceptions[i].readableName());
buffer.append('-').append(this.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 = this.thrownExceptions.length;
if (this.exceptionCount == size) {
System.arraycopy(
this.thrownExceptions,
0,
(this.thrownExceptions = new TypeBinding[size * 2]),
0,
size);
System.arraycopy(
this.exceptionThrowers,
0,
(this.exceptionThrowers = new ASTNode[size * 2]),
0,
size);
System.arraycopy(
this.exceptionThrowerFlowInfos,
0,
(this.exceptionThrowerFlowInfos = new FlowInfo[size * 2]),
0,
size);
}
this.thrownExceptions[this.exceptionCount] = raisedException;
this.exceptionThrowers[this.exceptionCount] = invocationSite;
this.exceptionThrowerFlowInfos[this.exceptionCount++] = flowInfo.copy();
}
}
