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.BindingKey;


public final class StandardType extends HierarchyType {

	private static final String OBJECT_KEY= BindingKey.createTypeBindingKey("java.lang.Object");   //$NON-NLS-1$
	private static final String CLONEABLE_KEY= BindingKey.createTypeBindingKey("java.lang.Cloneable"); //$NON-NLS-1$
	private static final String SERIALIZABLE_KEY= BindingKey.createTypeBindingKey("java.io.Serializable"); //$NON-NLS-1$

	protected StandardType(TypeEnvironment environment) {
		super(environment);
	}

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

	@Override
	public boolean isJavaLangObject() {
		return OBJECT_KEY.equals(getBindingKey());
	}

	@Override
	public boolean isJavaLangCloneable() {
		return CLONEABLE_KEY.equals(getBindingKey());
	}

	@Override
	public boolean isJavaIoSerializable() {
		return SERIALIZABLE_KEY.equals(getBindingKey());
	}

	@Override
	public boolean doEquals(TType type) {
		return getJavaElementType().equals(((StandardType)type).getJavaElementType());
	}

	@Override
	public int hashCode() {
		return getJavaElementType().hashCode();
	}

	@Override
	protected boolean doCanAssignTo(TType lhs) {
		switch (lhs.getKind()) {
			case NULL_TYPE: return false;
			case VOID_TYPE: return false;
			case PRIMITIVE_TYPE: return canAssignToPrimitive((PrimitiveType)lhs);

			case ARRAY_TYPE: return false;

			case STANDARD_TYPE: return canAssignToStandardType((StandardType)lhs);
			case GENERIC_TYPE: return false;
			case PARAMETERIZED_TYPE: return isSubType((HierarchyType)lhs);
			case RAW_TYPE: return isSubType((HierarchyType)lhs);

			case UNBOUND_WILDCARD_TYPE:
			case SUPER_WILDCARD_TYPE:
			case EXTENDS_WILDCARD_TYPE:
				return ((WildcardType)lhs).checkAssignmentBound(this);

			case TYPE_VARIABLE: return false;

			case CAPTURE_TYPE:
				return ((CaptureType)lhs).checkLowerBound(this);
		}
		return false;
	}

	private boolean canAssignToPrimitive(PrimitiveType type) {
		PrimitiveType source= getEnvironment().createUnBoxed(this);
		return source != null && source.canAssignTo(type);
	}

	@Override
	public String getName() {
		return getJavaElementType().getElementName();
	}

	@Override
	protected String getPlainPrettySignature() {
		return getJavaElementType().getFullyQualifiedName('.');
	}
}