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/*******************************************************************************
* Copyright (c) 2006, 2008 Oracle. 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:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.common.core.internal.utility.jdt;
import org.eclipse.jdt.core.dom.AST;
import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.Expression;
import org.eclipse.jdt.core.dom.PrimitiveType;
import org.eclipse.jdt.core.dom.TypeLiteral;
import org.eclipse.jpt.common.core.utility.jdt.ExpressionConverter;
/**
* Convert a type literal to/from a string representation of a primitive type
* (e.g. "int").
*/
public final class PrimitiveTypeStringExpressionConverter
extends AbstractExpressionConverter<String>
{
private static final ExpressionConverter<String> INSTANCE = new PrimitiveTypeStringExpressionConverter();
/**
* Return the singleton.
*/
public static ExpressionConverter<String> instance() {
return INSTANCE;
}
/**
* Ensure single instance.
*/
private PrimitiveTypeStringExpressionConverter() {
super();
}
@Override
protected TypeLiteral convertObject(String string, AST ast) {
org.eclipse.jdt.core.dom.Type type = ast.newPrimitiveType(PrimitiveType.toCode(string));
TypeLiteral typeLiteral = ast.newTypeLiteral();
typeLiteral.setType(type);
return typeLiteral;
}
@Override
protected String convertExpression(Expression expression) {
if (expression.getNodeType() == ASTNode.TYPE_LITERAL) {
org.eclipse.jdt.core.dom.Type type = ((TypeLiteral) expression).getType();
if (type.getNodeType() == ASTNode.PRIMITIVE_TYPE) {
return ((PrimitiveType) type).getPrimitiveTypeCode().toString();
}
}
return null;
}
}
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