/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-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;
}
}