/*******************************************************************************
* Copyright © 2011, 2013 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.edt.gen.javascript.templates;
import org.eclipse.edt.gen.javascript.Context;
import org.eclipse.edt.mof.codegen.api.TabbedWriter;
import org.eclipse.edt.mof.egl.FixedPrecisionType;
public class FixedPrecisionTypeTemplate extends JavaScriptTemplate {
public void genTypeDependentOptions(FixedPrecisionType type, Context ctx, TabbedWriter out) {
out.print(", ");
out.print(type.getDecimals());
out.print(", ");
out.print(decimalLimit(type.getDecimals(), type.getLength()));
}
/**
* Returns a value for the limit parameter to the convertToDecimal methods. The limit is the largest positive value that
* can be assigned to a variable of the given type.
*/
protected String decimalLimit(int decimals, int length) {
if (length > 32) {
String limit = "";
for (int len = length; len > 0; len--) {
limit += "9";
}
if (decimals > 0)
limit = limit.substring(0, length - decimals) + '.' + limit.substring(length - decimals);
return "new egl.javascript.BigDecimal(\"" + limit + "\")";
} else {
String limit = "egl.javascript.BigDecimal.prototype.NINES[" + (length - 1) + "]";
if (decimals > 0)
limit += ".movePointLeft(" + decimals + ")";
return limit;
}
}
}