EGLNumericExpressionStatementReferenceCompletion.java example

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/*******************************************************************************
 * Copyright © 2000, 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.ide.ui.internal.contentassist.referencecompletion;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.edt.compiler.core.ast.Node;
import org.eclipse.edt.ide.core.internal.errors.ParseStack;
import org.eclipse.edt.ide.core.search.IEGLSearchConstants;
import org.eclipse.edt.ide.ui.internal.contentassist.proposalhandlers.EGLDeclarationProposalHandler;
import org.eclipse.edt.ide.ui.internal.contentassist.proposalhandlers.EGLFieldsFromLibraryUseStatementProposalHandler;
import org.eclipse.edt.ide.ui.internal.contentassist.proposalhandlers.EGLFunctionFromLibraryUseStatementProposalHandler;
import org.eclipse.edt.ide.ui.internal.contentassist.proposalhandlers.EGLFunctionMemberSearchProposalHandler;
import org.eclipse.edt.ide.ui.internal.contentassist.proposalhandlers.EGLPartSearchProposalHandler;
import org.eclipse.edt.ide.ui.internal.contentassist.referencecompletion.EGLAbstractReferenceCompletion.IBoundNodeProcessor;
import org.eclipse.jface.text.ITextViewer;

public class EGLNumericExpressionStatementReferenceCompletion extends EGLAbstractReferenceCompletion {

	/* (non-Javadoc)
	 * @see org.eclipse.edt.ide.ui.internal.contentassist.EGLAbstractReferenceCompletion#precompileContexts()
	 */
	protected void precompileContexts() {
		addContext("package a; handler a function a() a=a+"); //$NON-NLS-1$
		addContext("package a; handler a function a() a=a-"); //$NON-NLS-1$
		addContext("package a; handler a function a() a=a*"); //$NON-NLS-1$
		addContext("package a; handler a function a() a=a/"); //$NON-NLS-1$
		addContext("package a; handler a function a() a=a%"); //$NON-NLS-1$
		addContext("package a; handler a function a() a=a**"); //$NON-NLS-1$
		addContext("package a; handler a function a() a+="); //$NON-NLS-1$
		addContext("package a; handler a function a() a-="); //$NON-NLS-1$
		addContext("package a; handler a function a() a*="); //$NON-NLS-1$
		addContext("package a; handler a function a() a/="); //$NON-NLS-1$
		addContext("package a; handler a function a() a%="); //$NON-NLS-1$
		addContext("package a; handler a function a() a**="); //$NON-NLS-1$
		addContext("package a; handler a function a() a=+"); //$NON-NLS-1$
		addContext("package a; handler a function a() a=-"); //$NON-NLS-1$
	}

	/* (non-Javadoc)
	 * @see org.eclipse.edt.ide.ui.internal.contentassist.EGLAbstractReferenceCompletion#returnCompletionProposals(com.ibm.etools.egl.pgm.errors.ParseStack, java.util.List, org.eclipse.jface.text.ITextViewer, int)
	 */
	protected List returnCompletionProposals(ParseStack parseStack, final String prefix, final ITextViewer viewer, final int documentOffset) {
		final List proposals = new ArrayList();

		getBoundASTNodeForOffsetInStatement(viewer, documentOffset, new IBoundNodeProcessor() {public void processBoundNode(Node boundNode) {
			//Get all variable proposals
			proposals.addAll(
				new EGLDeclarationProposalHandler(
					viewer,
					documentOffset,
					prefix,
					boundNode)
					.getProposals(boundNode));
			
			//Get user field proposals using library use statements
			proposals.addAll(
				new EGLFieldsFromLibraryUseStatementProposalHandler(viewer, documentOffset, prefix, editor, boundNode).getProposals());

			//Get user function proposals with return value using library use statements
			proposals.addAll(
				new EGLFunctionFromLibraryUseStatementProposalHandler(viewer, documentOffset, prefix, editor, true, boundNode).getProposals());
			
			//Get user function proposals with return value
			proposals.addAll(
				new EGLFunctionMemberSearchProposalHandler(viewer, documentOffset, prefix, editor, true, boundNode).getProposals());
		}});
		
		//Get all proposals for parts that contain static members
		proposals.addAll(new EGLPartSearchProposalHandler(viewer, documentOffset, prefix, editor).getProposals(getSearchConstantsForPartsWithStaticMembers()));
		
		return proposals;
	}
}