Copyright (c) 2000, 2016 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2000, 2016 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.corext.refactoring.typeconstraints.types;

import org.eclipse.jdt.core.IJavaProject;


public final class PrimitiveType extends TType {

	
Type code for the primitive type "int". /** Type code for the primitive type "int". */
	public static final int INT = 0;
	
Type code for the primitive type "char". /** Type code for the primitive type "char". */
	public static final int CHAR = 1;
	
Type code for the primitive type "boolean". /** Type code for the primitive type "boolean". */
	public static final int BOOLEAN = 2;
	
Type code for the primitive type "short". /** Type code for the primitive type "short". */
	public static final int SHORT = 3;
	
Type code for the primitive type "long". /** Type code for the primitive type "long". */
	public static final int LONG = 4;
	
Type code for the primitive type "float". /** Type code for the primitive type "float". */
	public static final int FLOAT = 5;
	
Type code for the primitive type "double". /** Type code for the primitive type "double". */
	public static final int DOUBLE = 6;
	
Type code for the primitive type "byte". /** Type code for the primitive type "byte". */
	public static final int BYTE = 7;

	static final String[] NAMES= {
		"int",  //$NON-NLS-1$
		"char",  //$NON-NLS-1$
		"boolean",  //$NON-NLS-1$
		"short",  //$NON-NLS-1$
		"long",  //$NON-NLS-1$
		"float",  //$NON-NLS-1$
		"double",  //$NON-NLS-1$
		"byte"};  //$NON-NLS-1$

	private int fId;

	protected PrimitiveType(TypeEnvironment environment, int id, String signature) {
		super(environment, signature);
		fId= id;
	}

	public int getId() {
		return fId;
	}

	@Override
	public int getKind() {
		return PRIMITIVE_TYPE;
	}

	@Override
	protected boolean doEquals(TType type) {
		return fId == ((PrimitiveType)type).fId;
	}

	@Override
	public int hashCode() {
		return fId;
	}
	
	@Override
	protected boolean doCanAssignTo(TType lhs) {
		if (lhs.getKind() != PRIMITIVE_TYPE) {
			if (lhs.getKind() == STANDARD_TYPE) {
				IJavaProject javaProject= ((StandardType)lhs).getJavaElementType().getJavaProject();
				return getEnvironment().createBoxed(this, javaProject).canAssignTo(lhs);
			}
			return false;
		}

		switch (((PrimitiveType)lhs).fId) {
			case BOOLEAN :
			case BYTE :
			case CHAR :
				return false;
			case DOUBLE :
				switch (fId) {
					case BYTE :
					case CHAR :
					case SHORT :
					case INT :
					case LONG :
					case FLOAT :
						return true;
					default :
						return false;
				}
			case FLOAT :
				switch (fId) {
					case BYTE :
					case CHAR :
					case SHORT :
					case INT :
					case LONG :
						return true;
					default :
						return false;
				}
			case LONG :
				switch (fId) {
					case BYTE :
					case CHAR :
					case SHORT :
					case INT :
						return true;
					default :
						return false;
				}
			case INT :
				switch (fId) {
					case BYTE :
					case CHAR :
					case SHORT :
						return true;
					default :
						return false;
				}
			case SHORT :
				return (fId == BYTE);
		}
		return false;
	}

	@Override
	public String getName() {
		return NAMES[fId];
	}

	@Override
	protected String getPlainPrettySignature() {
		return NAMES[fId];
	}
}