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The core functionality of the CodeModel java source code generation library
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2008 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
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*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.codemodel;
import java.util.ArrayList;
import java.util.List;
/**
* JMethod invocation
*/
public final class JInvocation extends JExpressionImpl implements JStatement {
/**
* Object expression upon which this method will be invoked, or null if
* this is a constructor invocation
*/
private JGenerable object;
/**
* Name of the method to be invoked.
* Either this field is set, or {@link #method}, or {@link #type} (in which case it's a
* constructor invocation.)
* This allows {@link JMethod#name(String) the name of the method to be changed later}.
*/
private String name;
private JMethod method;
private boolean isConstructor = false;
/**
* List of argument expressions for this method invocation
*/
private List args = new ArrayList();
/**
* If isConstructor==true, this field keeps the type to be created.
*/
private JType type = null;
/**
* Invokes a method on an object.
*
* @param object
* JExpression for the object upon which
* the named method will be invoked,
* or null if none
*
* @param name
* Name of method to invoke
*/
JInvocation(JExpression object, String name) {
this( (JGenerable)object, name );
}
JInvocation(JExpression object, JMethod method) {
this( (JGenerable)object, method );
}
/**
* Invokes a static method on a class.
*/
JInvocation(JClass type, String name) {
this( (JGenerable)type, name );
}
JInvocation(JClass type, JMethod method) {
this( (JGenerable)type, method );
}
private JInvocation(JGenerable object, String name) {
this.object = object;
if (name.indexOf('.') >= 0)
throw new IllegalArgumentException("method name contains '.': " + name);
this.name = name;
}
private JInvocation(JGenerable object, JMethod method) {
this.object = object;
this.method =method;
}
/**
* Invokes a constructor of an object (i.e., creates
* a new object.)
*
* @param c
* Type of the object to be created. If this type is
* an array type, added arguments are treated as array
* initializer. Thus you can create an expression like
* new int[]{1,2,3,4,5}
.
*/
JInvocation(JType c) {
this.isConstructor = true;
this.type = c;
}
/**
* Add an expression to this invocation's argument list
*
* @param arg
* Argument to add to argument list
*/
public JInvocation arg(JExpression arg) {
if(arg==null) throw new IllegalArgumentException();
args.add(arg);
return this;
}
/**
* Adds a literal argument.
*
* Short for {@code arg(JExpr.lit(v))}
*/
public JInvocation arg(String v) {
return arg(JExpr.lit(v));
}
public void generate(JFormatter f) {
if (isConstructor && type.isArray()) {
// [RESULT] new T[]{arg1,arg2,arg3,...};
f.p("new").g(type).p('{');
} else {
if (isConstructor)
f.p("new").g(type).p('(');
else {
String name = this.name;
if(name==null) name=this.method.name();
if (object != null)
f.g(object).p('.').p(name).p('(');
else
f.id(name).p('(');
}
}
f.g(args);
if (isConstructor && type.isArray())
f.p('}');
else
f.p(')');
if( type instanceof JDefinedClass && ((JDefinedClass)type).isAnonymous() ) {
((JAnonymousClass)type).declareBody(f);
}
}
public void state(JFormatter f) {
f.g(this).p(';').nl();
}
}
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