com.sun.codemodel.JTypeVar Maven / Gradle / Ivy

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/*
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the "License").  You may not use this file except
 * in compliance with the License.
 * 
 * You can obtain a copy of the license at
 * https://jwsdp.dev.java.net/CDDLv1.0.html
 * See the License for the specific language governing
 * permissions and limitations under the License.
 * 
 * When distributing Covered Code, include this CDDL
 * HEADER in each file and include the License file at
 * https://jwsdp.dev.java.net/CDDLv1.0.html  If applicable,
 * add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your
 * own identifying information: Portions Copyright [yyyy]
 * [name of copyright owner]
 */
package com.sun.codemodel;

import java.util.Iterator;
import java.util.List;

/**
 * Type variable used to declare generics.
 * 
 * @see JGenerifiable
 * @author
 *     Kohsuke Kawaguchi ([email protected])
 */
public final class JTypeVar extends JClass implements JDeclaration {
    
    private final String name;
    
    private JClass bound;

    JTypeVar(JCodeModel owner, String _name) {
        super(owner);
        this.name = _name;
    }
    
    public String name() {
        return name;
    }

    public String fullName() {
        return name;
    }

    public JPackage _package() {
        return null;
    }
    
    /**
     * Adds a bound to this variable.
     * 
     * @return  this
     */
    public JTypeVar bound( JClass c ) {
        if(bound!=null)
            throw new IllegalArgumentException("type variable has an existing class bound "+bound);
        bound = c;
        return this;
    }

    /**
     * Returns the class bound of this variable.
     * 
     * 
     * If no bound is given, this method returns {@link Object}.
     */
    public JClass _extends() {
        if(bound!=null)
            return bound;
        else
            return owner().ref(Object.class);
    }

    /**
     * Returns the interface bounds of this variable.
     */
    public Iterator _implements() {
        return bound._implements();
    }

    public boolean isInterface() {
        return false;
    }

    public boolean isAbstract() {
        return false;
    }

    /**
     * Prints out the declaration of the variable.
     */
    public void declare(JFormatter f) {
        f.id(name);
        if(bound!=null)
            f.p("extends").g(bound);
    }


    protected JClass substituteParams(JTypeVar[] variables, List bindings) {
        for(int i=0;i