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.core.runtime.Assert;

import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.dom.ITypeBinding;


public final class RawType extends HierarchyType {

	private HierarchyType fTypeDeclaration;

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

	@Override
	protected void initialize(ITypeBinding binding, IType javaElementType) {
		Assert.isTrue(binding.isRawType());
		super.initialize(binding, javaElementType);
		TypeEnvironment environment= getEnvironment();
		fTypeDeclaration= (HierarchyType)environment.create(binding.getTypeDeclaration());
	}

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

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

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

	@Override
	public TType getTypeDeclaration() {
		return fTypeDeclaration;
	}

	@Override
	public TType getErasure() {
		return fTypeDeclaration;
	}

	/*package*/ HierarchyType getHierarchyType() {
		return fTypeDeclaration;
	}

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

			case ARRAY_TYPE: return false;

			case STANDARD_TYPE: return canAssignToStandardType((StandardType)lhs);
			case GENERIC_TYPE: return false;
			case PARAMETERIZED_TYPE: return isSubType((ParameterizedType)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;
	}

	@Override
	protected boolean isTypeEquivalentTo(TType other) {
		int otherElementType= other.getKind();
		if (otherElementType == PARAMETERIZED_TYPE || otherElementType == GENERIC_TYPE)
			return getErasure().isTypeEquivalentTo(other.getErasure());
		return super.isTypeEquivalentTo(other);
	}

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

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