VariablesInfo.java

/*******************************************************************************
 * 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.eclipse.jdt.internal.eval;

import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.internal.compiler.ClassFile;

/**
 * This contains information about the installed variables such as their names, their types, the
 * name of the class that defines them, the binary of the class (to be passed to the name
 * environment when compiling the code snippet).
 */
public class VariablesInfo {
	GlobalVariable[] variables;

	int variableCount;

	char[] packageName;

	char[] className;

	ClassFile[] classFiles;

	/**
	 * Creates a new variables info. The name of the global variable class is the simple name of
	 * this class. The package name can be null if the variables have been defined in the default
	 * package.
	 */
	public VariablesInfo(char[] packageName, char[] className, ClassFile[] classFiles, GlobalVariable[] variables, int variableCount) {
		this.packageName= packageName;
		this.className= className;
		this.classFiles= classFiles;
		this.variables= variables;
		this.variableCount= variableCount;
	}

	/**
	 * Returns the index of the given variable. Returns -1 if not found.
	 */
	int indexOf(GlobalVariable var) {
		for (int i= 0; i < this.variableCount; i++) {
			if (var.equals(this.variables[i])) {
				return i;
			}
		}
		return -1;
	}

	/**
	 * Returns the variable with the given name. Returns null if not found.
	 */
	GlobalVariable varNamed(char[] name) {
		GlobalVariable[] vars= this.variables;
		for (int i= 0; i < this.variableCount; i++) {
			GlobalVariable var= vars[i];
			if (CharOperation.equals(name, var.name)) {
				return var;
			}
		}
		return null;
	}
}