/*******************************************************************************
 * Copyright (c) 2000, 2004 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.Binding;
import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
import net.sourceforge.phpdt.internal.compiler.lookup.ClassScope;
import net.sourceforge.phpdt.internal.compiler.lookup.PackageBinding;
import net.sourceforge.phpdt.internal.compiler.lookup.Scope;
import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;

public class JavadocSingleTypeReference extends SingleTypeReference {

	public int tagSourceStart, tagSourceEnd;

	public PackageBinding packageBinding;

	public JavadocSingleTypeReference(char[] source, long pos, int tagStart,
			int tagEnd) {
		super(source, pos);
		this.tagSourceStart = tagStart;
		this.tagSourceEnd = tagEnd;
		this.bits |= InsideJavadoc;
	}

	protected void reportInvalidType(Scope scope) {
		scope.problemReporter().javadocInvalidType(this, this.resolvedType,
				scope.getDeclarationModifiers());
	}

	protected void reportDeprecatedType(Scope scope) {
		scope.problemReporter().javadocDeprecatedType(this.resolvedType, this,
				scope.getDeclarationModifiers());
	}

	/*
	 * (non-Javadoc) Redefine to capture javadoc specific signatures
	 * 
	 * @see net.sourceforge.phpdt.internal.compiler.ast.ASTNode#traverse(net.sourceforge.phpdt.internal.compiler.ASTVisitor,
	 *      net.sourceforge.phpdt.internal.compiler.lookup.BlockScope)
	 */
	public void traverse(ASTVisitor visitor, BlockScope scope) {
		visitor.visit(this, scope);
		visitor.endVisit(this, scope);
	}

	/*
	 * 
	 */
	private TypeBinding internalResolveType(Scope scope) {
		// handle the error here
		this.constant = NotAConstant;
		if (this.resolvedType != null) { // is a shared type reference which
											// was already resolved
			if (!this.resolvedType.isValidBinding())
				return null; // already reported error
		} else {
			this.resolvedType = getTypeBinding(scope);
			if (!this.resolvedType.isValidBinding()) {
				char[][] tokens = { this.token };
				Binding binding = scope.getTypeOrPackage(tokens);
				if (binding instanceof PackageBinding) {
					this.packageBinding = (PackageBinding) binding;
				} else {
					reportInvalidType(scope);
				}
				return null;
			}
			if (isTypeUseDeprecated(this.resolvedType, scope)) {
				reportDeprecatedType(scope);
			}
		}
		return this.resolvedType;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see net.sourceforge.phpdt.internal.compiler.ast.Expression#resolveType(net.sourceforge.phpdt.internal.compiler.lookup.BlockScope)
	 *      We need to override to handle package references
	 */
	public TypeBinding resolveType(BlockScope blockScope) {
		return internalResolveType(blockScope);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see net.sourceforge.phpdt.internal.compiler.ast.Expression#resolveType(net.sourceforge.phpdt.internal.compiler.lookup.ClassScope)
	 *      We need to override to handle package references
	 */
	public TypeBinding resolveType(ClassScope classScope) {
		return internalResolveType(classScope);
	}
}