org.eclipse.ocl.expressions.operations.LetExpOperations Maven / Gradle / Ivy

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/**
 * 
 * 
 * Copyright (c) 2008 IBM Corporation, Zeligsoft Inc., 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 - Initial API and implementation
 *   Zeligsoft - Bug 207365
 * 
 * 
 *
 * $Id: LetExpOperations.java,v 1.3 2008/10/12 01:09:49 cdamus Exp $
 */
package org.eclipse.ocl.expressions.operations;

import java.util.Map;

import org.eclipse.emf.common.util.BasicDiagnostic;
import org.eclipse.emf.common.util.Diagnostic;
import org.eclipse.emf.common.util.DiagnosticChain;

import org.eclipse.ocl.Environment;
import org.eclipse.ocl.expressions.LetExp;
import org.eclipse.ocl.expressions.OCLExpression;

import org.eclipse.ocl.expressions.util.ExpressionsValidator;
import org.eclipse.ocl.internal.l10n.OCLMessages;
import org.eclipse.ocl.util.OCLUtil;
import org.eclipse.ocl.util.TypeUtil;

/**
 * 
 * A static utility class that provides operations related to 'Let Exp' model objects.
 * 
 *
 * 
 * The following operations are supported:
 * 

 *   {@link org.eclipse.ocl.expressions.LetExp#checkLetType(org.eclipse.emf.common.util.DiagnosticChain, java.util.Map) Check Let Type}
 * 
 * 
 *
 * @generated
 */
public class LetExpOperations
		extends OCLExpressionOperations {

	/**
	 * 
	 * 
	 * @generated
	 */
	protected LetExpOperations() {
		super();
	}

	/**
	 * 
	 * 
	 * 
	 * type = in.type
	 * @param letExp The receiving 'Let Exp' model object.
	 * @param diagnostics The chain of diagnostics to which problems are to be appended.
	 * @param context The cache of context-specific information.
	 * 
	 * @generated NOT
	 */
	public static  boolean checkLetType(LetExp letExp,
			DiagnosticChain diagnostics, Map context) {
		boolean result = true;
		Environment env = OCLUtil
			.getValidationEnvironment(letExp, context);

		C type = letExp.getType();
		OCLExpression in = letExp.getIn();

		if ((env != null) && (type != null) && (in != null)) {
			C inType = in.getType();

			if (inType != null) {
				result = TypeUtil.exactTypeMatch(env, type, inType);
			}
		}

		if (!result) {
			if (diagnostics != null) {
				diagnostics.add(new BasicDiagnostic(Diagnostic.ERROR,
					ExpressionsValidator.DIAGNOSTIC_SOURCE,
					ExpressionsValidator.LET_EXP__LET_TYPE,
					OCLMessages.TypeConformanceLetExp_ERROR_,
					new Object[]{letExp}));
			}
		}

		return result;
	}

} // LetExpOperations