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/*
* Copyright 2003 Sun Microsystems, Inc. All Rights Reserved.
* 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. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package sun.rmi.rmic.newrmic.jrmp;
import com.sun.javadoc.ClassDoc;
import com.sun.javadoc.MethodDoc;
import com.sun.javadoc.Parameter;
import com.sun.javadoc.Type;
/**
* Provides static utility methods.
*
* WARNING: The contents of this source file are not part of any
* supported API. Code that depends on them does so at its own risk:
* they are subject to change or removal without notice.
*
* @author Peter Jones
**/
final class Util {
private Util() { throw new AssertionError(); }
/**
* Returns the binary name of the class or interface represented
* by the specified ClassDoc.
**/
static String binaryNameOf(ClassDoc cl) {
String flat = cl.name().replace('.', '$');
String packageName = cl.containingPackage().name();
return packageName.equals("") ? flat : packageName + "." + flat;
}
/**
* Returns the method descriptor for the specified method.
*
* See section 4.3.3 of The Java Virtual Machine Specification
* Second Edition for the definition of a "method descriptor".
**/
static String methodDescriptorOf(MethodDoc method) {
String desc = "(";
Parameter[] parameters = method.parameters();
for (int i = 0; i < parameters.length; i++) {
desc += typeDescriptorOf(parameters[i].type());
}
desc += ")" + typeDescriptorOf(method.returnType());
return desc;
}
/**
* Returns the descriptor for the specified type, as appropriate
* for either a parameter or return type in a method descriptor.
**/
private static String typeDescriptorOf(Type type) {
String desc;
ClassDoc classDoc = type.asClassDoc();
if (classDoc == null) {
/*
* Handle primitive types.
*/
String name = type.typeName();
if (name.equals("boolean")) {
desc = "Z";
} else if (name.equals("byte")) {
desc = "B";
} else if (name.equals("char")) {
desc = "C";
} else if (name.equals("short")) {
desc = "S";
} else if (name.equals("int")) {
desc = "I";
} else if (name.equals("long")) {
desc = "J";
} else if (name.equals("float")) {
desc = "F";
} else if (name.equals("double")) {
desc = "D";
} else if (name.equals("void")) {
desc = "V";
} else {
throw new AssertionError(
"unrecognized primitive type: " + name);
}
} else {
/*
* Handle non-array reference types.
*/
desc = "L" + binaryNameOf(classDoc).replace('.', '/') + ";";
}
/*
* Handle array types.
*/
int dimensions = type.dimension().length() / 2;
for (int i = 0; i < dimensions; i++) {
desc = "[" + desc;
}
return desc;
}
/**
* Returns a reader-friendly string representation of the
* specified method's signature. Names of reference types are not
* package-qualified.
**/
static String getFriendlyUnqualifiedSignature(MethodDoc method) {
String sig = method.name() + "(";
Parameter[] parameters = method.parameters();
for (int i = 0; i < parameters.length; i++) {
if (i > 0) {
sig += ", ";
}
Type paramType = parameters[i].type();
sig += paramType.typeName() + paramType.dimension();
}
sig += ")";
return sig;
}
/**
* Returns true if the specified type is void.
**/
static boolean isVoid(Type type) {
return type.asClassDoc() == null && type.typeName().equals("void");
}
}
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