/*

 * 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.codemodel.internal;

/**

 * Java built-in primitive types.

 *

 * Instances of this class can be obtained as constants of {@link JCodeModel},

 * such as {@link JCodeModel#BOOLEAN}.

 */

public final class JPrimitiveType extends JType {

    private final String typeName;

    private final JCodeModel owner;

    /**

     * Corresponding wrapper class.

     * For example, this would be "java.lang.Short" for short.

     */

    private final JClass wrapperClass;

    JPrimitiveType(JCodeModel owner, String typeName, Class<?> wrapper ) {

        this.owner = owner;

        this.typeName = typeName;

        this.wrapperClass = owner.ref(wrapper);

    }

    public JCodeModel owner() { return owner; }

    public String fullName() {

        return typeName;

    }

    public String name() {

        return fullName();

    }

    public boolean isPrimitive() {

        return true;

    }

    private JClass arrayClass;

    public JClass array() {

        if(arrayClass==null)

            arrayClass = new JArrayClass(owner,this);

        return arrayClass;

    }

    /**

     * Obtains the wrapper class for this primitive type.

     * For example, this method returns a reference to java.lang.Integer

     * if this object represents int.

     */

    public JClass boxify() {

        return wrapperClass;

    }

    /**

     * @deprecated calling this method from {@link JPrimitiveType}

     * would be meaningless, since it's always guaranteed to

     * return <tt>this</tt>.

     */

    public JType unboxify() {

        return this;

    }

    /**

     * @deprecated

     *      Use {@link #boxify()}.

     */

    public JClass getWrapperClass() {

        return boxify();

    }

    /**

     * Wraps an expression of this type to the corresponding wrapper class.

     * For example, if this class represents "float", this method will return

     * the expression <code>new Float(x)</code> for the paramter x.

     *

     * REVISIT: it's not clear how this method works for VOID.

     */

    public JExpression wrap( JExpression exp ) {

        return JExpr._new(boxify()).arg(exp);

    }

    /**

     * Do the opposite of the wrap method.

     *

     * REVISIT: it's not clear how this method works for VOID.

     */

    public JExpression unwrap( JExpression exp ) {

        // it just so happens that the unwrap method is always

        // things like "intValue" or "booleanValue".

        return exp.invoke(typeName+"Value");

    }

    public void generate(JFormatter f) {

        f.p(typeName);

    }

}