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/*******************************************************************************
 * Copyright (c) 2000, 2011 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.codeassist.select;

import org.eclipse.jdt.internal.compiler.ast.*;
import org.eclipse.jdt.internal.compiler.impl.ReferenceContext;
import org.eclipse.jdt.internal.compiler.lookup.*;

/**
 * Node representing a Javadoc comment including code selection.
 */
public class SelectionJavadoc extends Javadoc {

	Expression selectedNode;
	// https://bugs.eclipse.org/bugs/show_bug.cgi?id=171019
	// Flag raised when selection is done on inheritDoc javadoc tag
	boolean inheritDocSelected;

	public SelectionJavadoc(int sourceStart, int sourceEnd) {
		super(sourceStart, sourceEnd);
		this.inheritDocSelected = false;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jdt.internal.compiler.ast.Javadoc#print(int, java.lang.StringBuffer)
	 */
	public StringBuffer print(int indent, StringBuffer output) {
		super.print(indent, output);
		if (this.selectedNode != null) {
			String selectedString = null;
			if (this.selectedNode instanceof JavadocFieldReference) {
				JavadocFieldReference fieldRef = (JavadocFieldReference) this.selectedNode;
				if (fieldRef.methodBinding != null) {
					selectedString = "');
		}
		return output;
	}

	/**
	 * Resolve selected node if not null and throw exception to let clients know
	 * that it has been found.
	 *
	 * @throws SelectionNodeFound
	 */
	private void internalResolve(Scope scope) {
		if (this.selectedNode != null) {
			switch (scope.kind) {
				case Scope.CLASS_SCOPE:
					this.selectedNode.resolveType((ClassScope)scope);
					break;
				case Scope.METHOD_SCOPE:
					this.selectedNode.resolveType((MethodScope)scope);
					break;
			}
			Binding binding = null;
			if (this.selectedNode instanceof JavadocFieldReference) {
				JavadocFieldReference fieldRef = (JavadocFieldReference) this.selectedNode;
				binding = fieldRef.binding;
				if (binding == null && fieldRef.methodBinding != null) {
					binding = fieldRef.methodBinding;
				}
			} else if (this.selectedNode instanceof JavadocMessageSend) {
				binding = ((JavadocMessageSend) this.selectedNode).binding;
			} else if (this.selectedNode instanceof JavadocAllocationExpression) {
				binding = ((JavadocAllocationExpression) this.selectedNode).binding;
			} else if (this.selectedNode instanceof JavadocSingleNameReference) {
				binding = ((JavadocSingleNameReference) this.selectedNode).binding;
			} else if (this.selectedNode instanceof JavadocSingleTypeReference) {
				JavadocSingleTypeReference typeRef = (JavadocSingleTypeReference) this.selectedNode;
				if (typeRef.packageBinding == null) {
					binding = typeRef.resolvedType;
				}
			} else if (this.selectedNode instanceof JavadocQualifiedTypeReference) {
				JavadocQualifiedTypeReference typeRef = (JavadocQualifiedTypeReference) this.selectedNode;
				if (typeRef.packageBinding == null) {
					binding = typeRef.resolvedType;
				}
			} else {
				binding = this.selectedNode.resolvedType;
			}
			throw new SelectionNodeFound(binding);
		} else if (this.inheritDocSelected) {
			// no selection node when inheritDoc tag is selected
			// But we need to detect it to enable code select on inheritDoc
			ReferenceContext referenceContext = scope.referenceContext();
			if (referenceContext instanceof MethodDeclaration) {
				throw new SelectionNodeFound(((MethodDeclaration) referenceContext).binding);
			}
		}
	}

	/**
	 * Resolve selected node if not null and throw exception to let clients know
	 * that it has been found.
	 *
	 * @throws SelectionNodeFound
	 */
	public void resolve(ClassScope scope) {
		internalResolve(scope);
	}

	/**
	 * Resolve selected node if not null and throw exception to let clients know
	 * that it has been found.
	 *
	 * @throws SelectionNodeFound
	 */
	public void resolve(MethodScope scope) {
		internalResolve(scope);
	}

}