/*
 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.sun.tools.javadoc;

import com.sun.javadoc.*;

import com.sun.tools.javac.code.Attribute;
import com.sun.tools.javac.code.Symbol.VarSymbol;

/**
 * ParameterImpl information.
 * This includes a parameter type and parameter name.
 *
 *  <p><b>This is NOT part of any supported API.
 *  If you write code that depends on this, you do so at your own risk.
 *  This code and its internal interfaces are subject to change or
 *  deletion without notice.</b>
 *
 * @author Kaiyang Liu (original)
 * @author Robert Field (rewrite)
 * @author Scott Seligman (generics, annotations)
 */
class ParameterImpl implements Parameter {

    private final DocEnv env;
    private final VarSymbol sym;
    private final com.sun.javadoc.Type type;

    /**
     * Constructor of parameter info class.
     */
    ParameterImpl(DocEnv env, VarSymbol sym) {
        this.env = env;
        this.sym = sym;
        this.type = TypeMaker.getType(env, sym.type, false);
    }

    /**
     * Get the type of this parameter.
     */
    public com.sun.javadoc.Type type() {
        return type;
    }

    /**
     * Get local name of this parameter.
     * For example if parameter is the short 'index', returns "index".
     */
    public String name() {
        return sym.toString();
    }

    /**
     * Get type name of this parameter.
     * For example if parameter is the short 'index', returns "short".
     */
    public String typeName() {
        return (type instanceof ClassDoc || type instanceof TypeVariable)
                ? type.typeName()       // omit formal type params or bounds
                : type.toString();
    }

    /**
     * Returns a string representation of the parameter.
     * <p>
     * For example if parameter is the short 'index', returns "short index".
     *
     * @return type name and parameter name of this parameter.
     */
    public String toString() {
        return typeName() + " " + sym;
    }

    /**
     * Get the annotations of this parameter.
     * Return an empty array if there are none.
     */
    public AnnotationDesc[] annotations() {
        AnnotationDesc res[] = new AnnotationDesc[sym.getRawAttributes().length()];
        int i = 0;
        for (Attribute.Compound a : sym.getRawAttributes()) {
            res[i++] = new AnnotationDescImpl(env, a);
        }
        return res;
    }
}
