/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package net.sourceforge.phpdt.internal.compiler.ast;

import net.sourceforge.phpdt.internal.compiler.ASTVisitor;
import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
import net.sourceforge.phpdt.internal.compiler.lookup.ClassScope;
import net.sourceforge.phpdt.internal.compiler.lookup.ReferenceBinding;
import net.sourceforge.phpdt.internal.compiler.lookup.Scope;
import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;

import org.eclipse.core.resources.IFile;

public class SingleTypeReference extends TypeReference {
	public char[] token;

	public IFile file;

	public SingleTypeReference(IFile f, char[] source, int start, int end) {
		token = source;
		file = f;
		sourceStart = start;
		sourceEnd = end;

	}

	public SingleTypeReference(char[] source, long pos) {
		token = source;
		file = null;
		sourceStart = (int) (pos >>> 32);
		sourceEnd = (int) (pos & 0x00000000FFFFFFFFL);

	}

	public SingleTypeReference(char[] source, TypeBinding type, long pos) {
		this(source, pos);
		this.resolvedType = type;
	}

	public TypeReference copyDims(int dim) {
		// return a type reference copy of me with some dimensions
		// warning : the new type ref has a null binding

		return new ArrayTypeReference(token, null, dim,
				(((long) sourceStart) << 32) + sourceEnd);
	}

	public TypeBinding getTypeBinding(Scope scope) {
		if (this.resolvedType != null)
			return this.resolvedType;
		return scope.getType(token);
	}

	public char[][] getTypeName() {
		return new char[][] { token };
	}

	public TypeBinding resolveTypeEnclosing(BlockScope scope,
			ReferenceBinding enclosingType) {
		ReferenceBinding memberTb = scope.getMemberType(token, enclosingType);
		if (!memberTb.isValidBinding()) {
			scope.problemReporter().invalidEnclosingType(this, memberTb,
					enclosingType);
			return null;
		}
		if (isTypeUseDeprecated(memberTb, scope))
			scope.problemReporter().deprecatedType(memberTb, this);
		return this.resolvedType = memberTb;
	}

	public StringBuffer printExpression(int indent, StringBuffer output) {

		return output.append(token);
	}

	public String toStringExpression(int tab) {
		return new String(token);
	}

	public void traverse(ASTVisitor visitor, BlockScope scope) {
		visitor.visit(this, scope);
		visitor.endVisit(this, scope);
	}

	public void traverse(ASTVisitor visitor, ClassScope scope) {
		visitor.visit(this, scope);
		visitor.endVisit(this, scope);
	}
}