tools/pldt/org.eclipse.ptp.pldt.tests/src/org/eclipse/ptp/pldt/tests/Test_OpenMP.java - ptp/org.eclipse.ptp - Git at Google

 /*******************************************************************************
  * Copyright (c) 2010,2011 IBM Corporation
  * 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.ptp.pldt.tests;

 import java.util.Arrays;
 import java.util.List;

 import org.eclipse.cdt.core.dom.ast.IASTNode;
 import org.eclipse.cdt.core.model.CoreModel;
 import org.eclipse.cdt.core.model.ICElement;
 import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IMarker;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.runtime.IAdaptable;
 import org.eclipse.core.runtime.NullProgressMonitor;
 import org.eclipse.ptp.pldt.common.Artifact;
 import org.eclipse.ptp.pldt.common.ArtifactManager;
 import org.eclipse.ptp.pldt.common.IArtifact;
 import org.eclipse.ptp.pldt.internal.common.IDs;
 import org.eclipse.ptp.pldt.openmp.analysis.PAST.PASTOMPPragma;
 import org.eclipse.ptp.pldt.openmp.core.actions.RunAnalyseOpenMPcommandHandler;
 import org.eclipse.ptp.pldt.openmp.core.internal.OpenMPIDs;

 /**
  * @author beth
  *
  */
 public class Test_OpenMP extends PldtBaseTestFramework {

 	public void testOpenMPartifacts() throws Exception {
 		System.out.println("\n==> " + getMethodName() + "()...");

 		IFile file = importFile("resources", "helloOpenMP.c");
 		assertNotNull(file);

 		IFile openmpInclude = importFile("resources/includes", "omp.h");
 		assertNotNull(openmpInclude);
 		String tempPath = openmpInclude.getFullPath().toOSString();// includePath= /RegressionTestProject/mpi.h
 		// System.out.println("tempPath="+tempPath);
 		String includePath = openmpInclude.getWorkspace().getRoot().getRawLocation().toOSString()
 				+ openmpInclude.getFullPath().toFile().getAbsolutePath();
 		// System.out.println("includePath= "+includePath);

 		assertTrue(file instanceof IAdaptable);

 		CoreModel.getDefault().getCModel().makeConsistent(new NullProgressMonitor());// jeff

 		assertNotNull(cproject);
 		ICElement ce = cproject.findElement(file.getFullPath());

 		// ICElement covers folders and translationunits
 		// final ICElement ce = (ICElement) ((IAdaptable)file).getAdapter(ICElement.class);
 		assertNotNull(ce);
 		List<String> includes = Arrays.asList(new String[] { includePath });
 		RunAnalyseOpenMPcommandHandler racm = new RunAnalyseOpenMPcommandHandler();

 		racm.runResource(new NullProgressMonitor(), ce, 0, includes);

 		IMarker[] markers = file.findMarkers(OpenMPIDs.MARKER_ID, true, IResource.DEPTH_INFINITE);
 		assertNotNull(markers);
 		System.out.println("numMarkers: " + markers.length);
 		// need to sort markers, since they are not returned in a pre-determined order??

 		for (int i = 0; i < markers.length; i++) {
 			IMarker marker = markers[i];
 			int lineNo = (Integer) marker.getAttribute(IMarker.LINE_NUMBER);
 			System.out.println(i + " marker: lineNo " + lineNo + " name: " + marker.getAttribute(IDs.NAME));
 		}

 		// When strings don't match, click on the first entry (ComparisonFailure) in the Failure Trace in the JUnit view to get a
 		// diff view
 		// assertEquals("This\nis\na\ntest", "This\nwas\na\ntest");
 		// there really should be three, including a pragma. testOpenMP_pragmas will
 		// concentrate on these
 		int[] expectedLinenos = { 12, 14, 20 };
 		final String pragma = "#pragma omp parallel private(numThreads, tid)";
 		String[] expectedOpenMPTypes = { pragma, "omp_get_thread_num", "omp_get_num_threads" };
 		ArtifactWithLine[] expectedArts = new ArtifactWithLine[expectedLinenos.length];
 		ArtifactWithLine[] markerArts = new ArtifactWithLine[markers.length];
 		for (int i = 0; i < expectedArts.length; i++) {
 			expectedArts[i] = new ArtifactWithLine(expectedLinenos[i], expectedOpenMPTypes[i]);
 		}
 		for (int i = 0; i < markerArts.length; i++) {
 			markerArts[i] = new ArtifactWithLine(markers[i]);
 		}
 		Arrays.sort(expectedArts);
 		Arrays.sort(markerArts);

 		assertEquals(expectedArts.length, markerArts.length);
 		// Since these tests are in a loop, if one fails, must inspect the Console output to know which ones finished and which one
 		// failed.
 		for (int i = 0; i < markers.length; i++) {
 			// Marker should be on the line number we expect
 			System.out.println(i + ". " + expectedArts[i].getLineNo() + " = " + markerArts[i].getLineNo());
 			assertEquals(expectedArts[i].getLineNo(), markerArts[i].getLineNo());

 			// Marker should be of the type name we expect
 			System.out.println("    " + expectedArts[i].getName() + " = " + markerArts[i].getName());
 			assertEquals(expectedArts[i].getName(), markerArts[i].getName());

 			boolean test = markerArts[i].equals(expectedArts[i]);
 			System.out.println("   markerArts.equals expectedArts: " + test);
 			// the following never works, so we'll be happy enough with the two assertEquals above.
 			// assertEquals(expectedArts[i], markerArts[i]);

 		}

 	}

 	public void testOpenMP_pragmas() throws Exception {
 		System.out.println("\n==> " + getMethodName() + "()...");

 		IFile file = importFile("resources", "helloOpenMPpragmas.c");
 		assertNotNull(file);

 		IFile openmpInclude = importFile("resources/includes", "omp.h");
 		assertNotNull(openmpInclude);
 		String tempPath = openmpInclude.getFullPath().toOSString();// includePath= /RegressionTestProject/mpi.h
 		// System.out.println("tempPath="+tempPath);
 		String includePath = openmpInclude.getWorkspace().getRoot().getRawLocation().toOSString()
 				+ openmpInclude.getFullPath().toFile().getAbsolutePath();
 		// System.out.println("includePath= "+includePath);

 		assertTrue(file instanceof IAdaptable);

 		CoreModel.getDefault().getCModel().makeConsistent(new NullProgressMonitor());// jeff

 		assertNotNull(cproject);
 		ICElement ce = cproject.findElement(file.getFullPath());

 		// ICElement covers folders and translationunits
 		// final ICElement ce = (ICElement) ((IAdaptable)file).getAdapter(ICElement.class);
 		assertNotNull(ce);
 		List<String> includes = Arrays.asList(new String[] { includePath });
 		RunAnalyseOpenMPcommandHandler racm = new RunAnalyseOpenMPcommandHandler();

 		racm.runResource(new NullProgressMonitor(), ce, 0, includes);

 		IMarker[] markers = file.findMarkers(OpenMPIDs.MARKER_ID, true, IResource.DEPTH_INFINITE);
 		assertNotNull(markers);
 		System.out.println("numMarkers: " + markers.length);
 		// need to sort markers, since they are not returned in a pre-determined order??

 		// When strings don't match, click on the first entry (ComparisonFailure) in the Failure Trace in the JUnit view to get a
 		// diff view
 		// assertEquals("This\nis\na\ntest", "This\nwas\na\ntest");

 		int[] expectedLinenos = { 21, 23, 29, 34, 36, 40 };
 		final String prag = "#pragma omp parallel private(numThreads, tid)";
 		final String prag2 = "#pragma omp parallel shared(n,a,b)";
 		final String pragFor = "#pragma omp for";
 		final String pragParFor = "#pragma omp parallel for";
 		String[] expectedMpiTypes = { prag, "omp_get_thread_num", "omp_get_num_threads", prag2, pragFor, pragParFor };
 		ArtifactWithLine[] expectedArts = new ArtifactWithLine[expectedLinenos.length];
 		ArtifactWithLine[] markerArts = new ArtifactWithLine[markers.length];
 		for (int i = 0; i < expectedArts.length; i++) {
 			expectedArts[i] = new ArtifactWithLine(expectedLinenos[i], expectedMpiTypes[i]);
 		}
 		for (int i = 0; i < markerArts.length; i++) {
 			markerArts[i] = new ArtifactWithLine(markers[i]);
 		}
 		Arrays.sort(expectedArts);
 		Arrays.sort(markerArts);
 		for (int i = 0; i < markers.length; i++) {
 			IMarker marker = markers[i];
 			int lineNo = (Integer) marker.getAttribute(IMarker.LINE_NUMBER);
 			System.out.println(i + " marker: lineNo " + lineNo + " name: " + marker.getAttribute(IDs.NAME));
 		}

 		// should find pragma and two other openmp artifacts
 		assertEquals(expectedArts.length, markerArts.length);
 		// Since these tests are in a loop, if one fails, must inspect the Console output to know which ones finished and which one
 		// failed.
 		for (int i = 0; i < markers.length; i++) {
 			// Marker should be on the line number we expect
 			System.out.println(i + ". " + expectedArts[i].getLineNo() + " = " + markerArts[i].getLineNo());
 			assertEquals(expectedArts[i].getLineNo(), markerArts[i].getLineNo());

 			// Marker should be of the type name we expect
 			System.out.println("    " + expectedArts[i].getName() + " = " + markerArts[i].getName());
 			assertEquals(expectedArts[i].getName(), markerArts[i].getName());

 			boolean test = markerArts[i].equals(expectedArts[i]);
 			// the following never works, so we'll be happy enough with the two assertEquals above.
 			// assertEquals(expectedArts[i], markerArts[i]);

 		}
 		System.out.println("== Check regions for 'show pragma region' usage");
 		// check information needed for pragma show region action
 		RegionInfo ri0 = getRegion(ArtifactManager.getArtifact(markerArts[0].getMarker()));
 		assertNotNull(ri0);
 		System.out.println("0. region offset:" + ri0.offset + " length:" + ri0.length + "  " + markerArts[0].getName());
 		assertEquals(642, ri0.offset);
 		assertEquals(290, ri0.length);

 		RegionInfo ri1 = getRegion(ArtifactManager.getArtifact(markerArts[1].getMarker()));
 		assertNull(ri1);
 		// System.out.println("1. region offset:"+ri1.offset+ " length:"+ri1.length);
 		System.out.println("1. not a pragma    " + markerArts[1].getName());

 		RegionInfo ri2 = getRegion(ArtifactManager.getArtifact(markerArts[2].getMarker()));
 		assertNull(ri2);
 		System.out.println("2. not a pragma    " + markerArts[2].getName());
 		// assertEquals(642,ri0.offset);
 		// assertEquals(290, ri0.length);

 		RegionInfo ri3 = getRegion(ArtifactManager.getArtifact(markerArts[3].getMarker()));
 		assertNotNull(ri3);
 		System.out.println("3. region offset:" + ri3.offset + " length:" + ri3.length + "  " + markerArts[3].getName());
 		assertEquals(1014, ri3.offset);
 		assertEquals(214, ri3.length);

 		RegionInfo ri4 = getRegion(ArtifactManager.getArtifact(markerArts[4].getMarker()));
 		assertNotNull(ri4);
 		System.out.println("4. region offset:" + ri4.offset + " length:" + ri4.length + "  " + markerArts[4].getName());
 		assertEquals(1038, ri4.offset);
 		assertEquals(187, ri4.length);

 		RegionInfo ri5 = getRegion(ArtifactManager.getArtifact(markerArts[5].getMarker()));
 		assertNotNull(ri5);
 		System.out.println("5. region offset:" + ri5.offset + " length:" + ri5.length + "  " + markerArts[5].getName());
 		assertEquals(1170, ri5.offset);
 		assertEquals(50, ri5.length);

 		System.out.println("done");

 	}

 	/**
 	 * copied from OpenMPArtifactView.makeShowInfoAction() more or less - not ideal
 	 *
 	 * @param a
 	 */
 	RegionInfo getRegion(IArtifact a) {
 		Artifact artifact = (Artifact) a;
 		Object p = artifact.getArtifactAssist();
 		if (p == null || !(p instanceof PASTOMPPragma))
 			return null;
 		;
 		PASTOMPPragma ompPragma = (PASTOMPPragma) p;
 		IASTNode iRegion = ompPragma.getRegion();
 		ASTNode region = (iRegion instanceof ASTNode ? (ASTNode) iRegion : null);
 		if (region == null)
 			return null;
 		int offset = ompPragma.getRegionOffset();
 		int length = ompPragma.getRegionLength();
 		RegionInfo ri = new RegionInfo(offset, length);
 		return ri;

 	}

 	protected class RegionInfo {
 		int offset;
 		int length;

 		RegionInfo(int offset, int length) {
 			this.offset = offset;
 			this.length = length;
 		}
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2010,2011 IBM Corporation
	* 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.ptp.pldt.tests;

	import java.util.Arrays;
	import java.util.List;

	import org.eclipse.cdt.core.dom.ast.IASTNode;
	import org.eclipse.cdt.core.model.CoreModel;
	import org.eclipse.cdt.core.model.ICElement;
	import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
	import org.eclipse.core.resources.IFile;
	import org.eclipse.core.resources.IMarker;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.runtime.IAdaptable;
	import org.eclipse.core.runtime.NullProgressMonitor;
	import org.eclipse.ptp.pldt.common.Artifact;
	import org.eclipse.ptp.pldt.common.ArtifactManager;
	import org.eclipse.ptp.pldt.common.IArtifact;
	import org.eclipse.ptp.pldt.internal.common.IDs;
	import org.eclipse.ptp.pldt.openmp.analysis.PAST.PASTOMPPragma;
	import org.eclipse.ptp.pldt.openmp.core.actions.RunAnalyseOpenMPcommandHandler;
	import org.eclipse.ptp.pldt.openmp.core.internal.OpenMPIDs;

	/**
	* @author beth
	*
	*/
	public class Test_OpenMP extends PldtBaseTestFramework {

	public void testOpenMPartifacts() throws Exception {
	System.out.println("\n==> " + getMethodName() + "()...");

	IFile file = importFile("resources", "helloOpenMP.c");
	assertNotNull(file);

	IFile openmpInclude = importFile("resources/includes", "omp.h");
	assertNotNull(openmpInclude);
	String tempPath = openmpInclude.getFullPath().toOSString();// includePath= /RegressionTestProject/mpi.h
	// System.out.println("tempPath="+tempPath);
	String includePath = openmpInclude.getWorkspace().getRoot().getRawLocation().toOSString()
	+ openmpInclude.getFullPath().toFile().getAbsolutePath();
	// System.out.println("includePath= "+includePath);

	assertTrue(file instanceof IAdaptable);

	CoreModel.getDefault().getCModel().makeConsistent(new NullProgressMonitor());// jeff

	assertNotNull(cproject);
	ICElement ce = cproject.findElement(file.getFullPath());

	// ICElement covers folders and translationunits
	// final ICElement ce = (ICElement) ((IAdaptable)file).getAdapter(ICElement.class);
	assertNotNull(ce);
	List<String> includes = Arrays.asList(new String[] { includePath });
	RunAnalyseOpenMPcommandHandler racm = new RunAnalyseOpenMPcommandHandler();

	racm.runResource(new NullProgressMonitor(), ce, 0, includes);

	IMarker[] markers = file.findMarkers(OpenMPIDs.MARKER_ID, true, IResource.DEPTH_INFINITE);
	assertNotNull(markers);
	System.out.println("numMarkers: " + markers.length);
	// need to sort markers, since they are not returned in a pre-determined order??

	for (int i = 0; i < markers.length; i++) {
	IMarker marker = markers[i];
	int lineNo = (Integer) marker.getAttribute(IMarker.LINE_NUMBER);
	System.out.println(i + " marker: lineNo " + lineNo + " name: " + marker.getAttribute(IDs.NAME));
	}

	// When strings don't match, click on the first entry (ComparisonFailure) in the Failure Trace in the JUnit view to get a
	// diff view
	// assertEquals("This\nis\na\ntest", "This\nwas\na\ntest");
	// there really should be three, including a pragma. testOpenMP_pragmas will
	// concentrate on these
	int[] expectedLinenos = { 12, 14, 20 };
	final String pragma = "#pragma omp parallel private(numThreads, tid)";
	String[] expectedOpenMPTypes = { pragma, "omp_get_thread_num", "omp_get_num_threads" };
	ArtifactWithLine[] expectedArts = new ArtifactWithLine[expectedLinenos.length];
	ArtifactWithLine[] markerArts = new ArtifactWithLine[markers.length];
	for (int i = 0; i < expectedArts.length; i++) {
	expectedArts[i] = new ArtifactWithLine(expectedLinenos[i], expectedOpenMPTypes[i]);
	}
	for (int i = 0; i < markerArts.length; i++) {
	markerArts[i] = new ArtifactWithLine(markers[i]);
	}
	Arrays.sort(expectedArts);
	Arrays.sort(markerArts);

	assertEquals(expectedArts.length, markerArts.length);
	// Since these tests are in a loop, if one fails, must inspect the Console output to know which ones finished and which one
	// failed.
	for (int i = 0; i < markers.length; i++) {
	// Marker should be on the line number we expect
	System.out.println(i + ". " + expectedArts[i].getLineNo() + " = " + markerArts[i].getLineNo());
	assertEquals(expectedArts[i].getLineNo(), markerArts[i].getLineNo());

	// Marker should be of the type name we expect
	System.out.println(" " + expectedArts[i].getName() + " = " + markerArts[i].getName());
	assertEquals(expectedArts[i].getName(), markerArts[i].getName());

	boolean test = markerArts[i].equals(expectedArts[i]);
	System.out.println(" markerArts.equals expectedArts: " + test);
	// the following never works, so we'll be happy enough with the two assertEquals above.
	// assertEquals(expectedArts[i], markerArts[i]);

	}

	}

	public void testOpenMP_pragmas() throws Exception {
	System.out.println("\n==> " + getMethodName() + "()...");

	IFile file = importFile("resources", "helloOpenMPpragmas.c");
	assertNotNull(file);

	IFile openmpInclude = importFile("resources/includes", "omp.h");
	assertNotNull(openmpInclude);
	String tempPath = openmpInclude.getFullPath().toOSString();// includePath= /RegressionTestProject/mpi.h
	// System.out.println("tempPath="+tempPath);
	String includePath = openmpInclude.getWorkspace().getRoot().getRawLocation().toOSString()
	+ openmpInclude.getFullPath().toFile().getAbsolutePath();
	// System.out.println("includePath= "+includePath);

	assertTrue(file instanceof IAdaptable);

	CoreModel.getDefault().getCModel().makeConsistent(new NullProgressMonitor());// jeff

	assertNotNull(cproject);
	ICElement ce = cproject.findElement(file.getFullPath());

	// ICElement covers folders and translationunits
	// final ICElement ce = (ICElement) ((IAdaptable)file).getAdapter(ICElement.class);
	assertNotNull(ce);
	List<String> includes = Arrays.asList(new String[] { includePath });
	RunAnalyseOpenMPcommandHandler racm = new RunAnalyseOpenMPcommandHandler();

	racm.runResource(new NullProgressMonitor(), ce, 0, includes);

	IMarker[] markers = file.findMarkers(OpenMPIDs.MARKER_ID, true, IResource.DEPTH_INFINITE);
	assertNotNull(markers);
	System.out.println("numMarkers: " + markers.length);
	// need to sort markers, since they are not returned in a pre-determined order??

	// When strings don't match, click on the first entry (ComparisonFailure) in the Failure Trace in the JUnit view to get a
	// diff view
	// assertEquals("This\nis\na\ntest", "This\nwas\na\ntest");

	int[] expectedLinenos = { 21, 23, 29, 34, 36, 40 };
	final String prag = "#pragma omp parallel private(numThreads, tid)";
	final String prag2 = "#pragma omp parallel shared(n,a,b)";
	final String pragFor = "#pragma omp for";
	final String pragParFor = "#pragma omp parallel for";
	String[] expectedMpiTypes = { prag, "omp_get_thread_num", "omp_get_num_threads", prag2, pragFor, pragParFor };
	ArtifactWithLine[] expectedArts = new ArtifactWithLine[expectedLinenos.length];
	ArtifactWithLine[] markerArts = new ArtifactWithLine[markers.length];
	for (int i = 0; i < expectedArts.length; i++) {
	expectedArts[i] = new ArtifactWithLine(expectedLinenos[i], expectedMpiTypes[i]);
	}
	for (int i = 0; i < markerArts.length; i++) {
	markerArts[i] = new ArtifactWithLine(markers[i]);
	}
	Arrays.sort(expectedArts);
	Arrays.sort(markerArts);
	for (int i = 0; i < markers.length; i++) {
	IMarker marker = markers[i];
	int lineNo = (Integer) marker.getAttribute(IMarker.LINE_NUMBER);
	System.out.println(i + " marker: lineNo " + lineNo + " name: " + marker.getAttribute(IDs.NAME));
	}

	// should find pragma and two other openmp artifacts
	assertEquals(expectedArts.length, markerArts.length);
	// Since these tests are in a loop, if one fails, must inspect the Console output to know which ones finished and which one
	// failed.
	for (int i = 0; i < markers.length; i++) {
	// Marker should be on the line number we expect
	System.out.println(i + ". " + expectedArts[i].getLineNo() + " = " + markerArts[i].getLineNo());
	assertEquals(expectedArts[i].getLineNo(), markerArts[i].getLineNo());

	// Marker should be of the type name we expect
	System.out.println(" " + expectedArts[i].getName() + " = " + markerArts[i].getName());
	assertEquals(expectedArts[i].getName(), markerArts[i].getName());

	boolean test = markerArts[i].equals(expectedArts[i]);
	// the following never works, so we'll be happy enough with the two assertEquals above.
	// assertEquals(expectedArts[i], markerArts[i]);

	}
	System.out.println("== Check regions for 'show pragma region' usage");
	// check information needed for pragma show region action
	RegionInfo ri0 = getRegion(ArtifactManager.getArtifact(markerArts[0].getMarker()));
	assertNotNull(ri0);
	System.out.println("0. region offset:" + ri0.offset + " length:" + ri0.length + " " + markerArts[0].getName());
	assertEquals(642, ri0.offset);
	assertEquals(290, ri0.length);

	RegionInfo ri1 = getRegion(ArtifactManager.getArtifact(markerArts[1].getMarker()));
	assertNull(ri1);
	// System.out.println("1. region offset:"+ri1.offset+ " length:"+ri1.length);
	System.out.println("1. not a pragma " + markerArts[1].getName());

	RegionInfo ri2 = getRegion(ArtifactManager.getArtifact(markerArts[2].getMarker()));
	assertNull(ri2);
	System.out.println("2. not a pragma " + markerArts[2].getName());
	// assertEquals(642,ri0.offset);
	// assertEquals(290, ri0.length);

	RegionInfo ri3 = getRegion(ArtifactManager.getArtifact(markerArts[3].getMarker()));
	assertNotNull(ri3);
	System.out.println("3. region offset:" + ri3.offset + " length:" + ri3.length + " " + markerArts[3].getName());
	assertEquals(1014, ri3.offset);
	assertEquals(214, ri3.length);

	RegionInfo ri4 = getRegion(ArtifactManager.getArtifact(markerArts[4].getMarker()));
	assertNotNull(ri4);
	System.out.println("4. region offset:" + ri4.offset + " length:" + ri4.length + " " + markerArts[4].getName());
	assertEquals(1038, ri4.offset);
	assertEquals(187, ri4.length);

	RegionInfo ri5 = getRegion(ArtifactManager.getArtifact(markerArts[5].getMarker()));
	assertNotNull(ri5);
	System.out.println("5. region offset:" + ri5.offset + " length:" + ri5.length + " " + markerArts[5].getName());
	assertEquals(1170, ri5.offset);
	assertEquals(50, ri5.length);

	System.out.println("done");

	}

	/**
	* copied from OpenMPArtifactView.makeShowInfoAction() more or less - not ideal
	*
	* @param a
	*/
	RegionInfo getRegion(IArtifact a) {
	Artifact artifact = (Artifact) a;
	Object p = artifact.getArtifactAssist();
	if (p == null \|\| !(p instanceof PASTOMPPragma))
	return null;
	;
	PASTOMPPragma ompPragma = (PASTOMPPragma) p;
	IASTNode iRegion = ompPragma.getRegion();
	ASTNode region = (iRegion instanceof ASTNode ? (ASTNode) iRegion : null);
	if (region == null)
	return null;
	int offset = ompPragma.getRegionOffset();
	int length = ompPragma.getRegionLength();
	RegionInfo ri = new RegionInfo(offset, length);
	return ri;

	}

	protected class RegionInfo {
	int offset;
	int length;

	RegionInfo(int offset, int length) {
	this.offset = offset;
	this.length = length;
	}
	}

	}