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package com.sun.codemodel;
import java.util.Iterator;
import java.util.List;
/**
* Represents a wildcard type like "? extends Foo".
*
* <p>
* Instances of this class can be obtained from {@link JClass#wildcard()}
*
* TODO: extend this to cover "? super Integer".
*
* <p>
* Our modeling of types are starting to look really ugly.
* ideally it should have been done somewhat like APT,
* but it's too late now.
*
* @author Kohsuke Kawaguchi
*/
final class JTypeWildcard extends JClass {
private final JClass bound;
JTypeWildcard(JClass bound) {
super(bound.owner());
this.bound = bound;
}
public String name() {
return "? extends "+bound.name();
}
public String fullName() {
return "? extends "+bound.fullName();
}
public JPackage _package() {
return null;
}
/**
* Returns the class bound of this variable.
*
* <p>
* 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<JClass> _implements() {
return bound._implements();
}
public boolean isInterface() {
return false;
}
public boolean isAbstract() {
return false;
}
protected JClass substituteParams(JTypeVar[] variables, List<JClass> bindings) {
JClass nb = bound.substituteParams(variables,bindings);
if(nb==bound)
return this;
else
return new JTypeWildcard(nb);
}
public void generate(JFormatter f) {
if(bound._extends()==null)
f.p("?"); // instead of "? extends Object"
else
f.p("? extends").g(bound);
}
}