/*******************************************************************************
 * Copyright (c) 2002, 2016 IBM Corporation and others.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 * 
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     xored software, Inc. - initial API and Implementation
 *******************************************************************************/
package org.eclipse.dltk.ast.declarations;

import org.eclipse.dltk.ast.ASTVisitor;
import org.eclipse.dltk.ast.DLTKToken;
import org.eclipse.dltk.ast.Modifiers;
import org.eclipse.dltk.ast.PositionInformation;
import org.eclipse.dltk.ast.references.SimpleReference;
import org.eclipse.dltk.ast.statements.Statement;
import org.eclipse.dltk.core.ISourceRange;
import org.eclipse.dltk.core.SourceRange;
import org.eclipse.dltk.utils.CorePrinter;

public abstract class Declaration extends Statement implements Modifiers {
	public final static int D_ARGUMENT = 3000;

	public final static int D_CLASS = 3001;

	public final static int D_METHOD = 3002;

	public final static int D_DECLARATOR = 3004;

	SimpleReference ref;

	protected int modifiers;

	private String comments;

	protected Declaration() {
		this.modifiers = 0;
		this.ref = new SimpleReference(0, 0, null);
	}

	protected Declaration(int start, int end) {
		super(start, end);
		this.modifiers = 0;
	}

	protected Declaration(DLTKToken name, int start, int end) {
		super(start, end);
		if (name != null) {
			this.ref = new SimpleReference(name);
		} else {
			this.ref = new SimpleReference(start, end, null);
		}
	}

	public final int getNameStart() {
		return this.ref.sourceStart();
	}

	public final int getNameEnd() {
		return this.ref.sourceEnd();
	}

	protected ISourceRange getNameSourceRange() {
		return new SourceRange(this.getNameStart(), this.getNameEnd()
				- this.getNameStart() + 1);
	}

	public String getName() {
		return this.ref.getName();
	}

	public final int getModifiers() {
		return this.modifiers;
	}

	public final PositionInformation getPositionInformation() {
		return new PositionInformation(this.getNameStart(), this.getNameEnd(),
				this.sourceStart(), this.sourceEnd());
	}

	public final void setModifier(int mods) {
		this.modifiers |= mods;
	}

	public final void setModifiers(int mods) {
		this.modifiers = mods;
	}

	public final void setName(String name) {
		if (this.ref == null) {
			this.ref = new SimpleReference(0, 0, name);
		} else {
			this.ref.setName(name);
		}
	}

	public void setNameEnd(int end) {
		this.ref.setEnd(end);
	}

	public void setNameStart(int start) {
		this.ref.setStart(start);
	}

	public boolean isStatic() {
		return (this.modifiers & AccStatic) != 0;
	}

	public boolean isPublic() {
		return (this.modifiers & AccPublic) != 0;
	}

	public boolean isPrivate() {
		return (this.modifiers & AccPrivate) != 0;
	}

	public boolean isProtected() {

		return (this.modifiers & AccProtected) != 0;
	}

	public boolean isFinal() {
		return (this.modifiers & AccFinal) != 0;
	}

	public boolean isAbstract() {
		return (this.modifiers & AccAbstract) != 0;
	}

	public boolean isInterface() {
		return (this.modifiers & AccInterface) != 0;
	}

	@Override
	public String toString() {
		StringBuffer sb = new StringBuffer();
		if (this.isStatic()) {
			if (sb.length() != 0) {
				sb.append(' ');
			}
			sb.append("static"); //$NON-NLS-1$
		}
		if (this.ref.getName() != null) {
			if (sb.length() != 0) {
				sb.append(' ');
			}
			sb.append(this.ref.getName());
		}
		return sb.toString();
	}

	@Override
	public int getKind() {
		// TODO Auto-generated method stub
		return 0;
	}

	@Override
	public void printNode(CorePrinter output) {
		// TODO Auto-generated method stub

	}

	@Override
	public void traverse(ASTVisitor pVisitor) throws Exception {
		if (pVisitor.visit(this)) {
			this.ref.traverse(pVisitor);
			pVisitor.endvisit(this);
		}
	}

	@Override
	public String debugString() {
		return super.debugString() + this.getNameSourceRange().toString();
	}

	public SimpleReference getRef() {
		return this.ref;
	}

	/**
	 * @param comments
	 *            the comments to set
	 */
	public void setComments(String comments) {
		this.comments = comments;
	}

	/**
	 * @return the comments
	 */
	public String getComments() {
		return comments;
	}
}