com.sun.codemodel.JPrimitiveType Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2022 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.codemodel;
/**
* 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);
}
@Override
public JCodeModel owner() { return owner; }
@Override
public String fullName() {
return typeName;
}
@Override
public String name() {
return fullName();
}
@Override
public boolean isPrimitive() {
return true;
}
private JClass arrayClass;
@Override
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.
*/
@Override
public JClass boxify() {
return wrapperClass;
}
@Deprecated
@Override
public JType unboxify() {
return this;
}
/**
* @deprecated
* Use {@link #boxify()}.
*/
@Deprecated
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 new Float(x) 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");
}
@Override
public void generate(JFormatter f) {
f.p(typeName);
}
}