org.aspectj.runtime.internal.Conversions Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of aspectjrt Show documentation
Show all versions of aspectjrt Show documentation
The runtime needed to execute a program using AspectJ
/* *******************************************************************
* Copyright (c) 1999-2001 Xerox Corporation,
* 2002 Palo Alto Research Center, Incorporated (PARC).
* All rights reserved.
* This program and the accompanying materials are made available
* under the terms of the Eclipse Public License v1.0
* which accompanies this distribution and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Xerox/PARC initial implementation
* ******************************************************************/
package org.aspectj.runtime.internal;
public final class Conversions {
// Can't make instances of me
private Conversions() {}
// we might want to keep a cache of small integers around
public static Object intObject(int i) {
return new Integer(i);
}
public static Object shortObject(short i) {
return new Short(i);
}
public static Object byteObject(byte i) {
return new Byte(i);
}
public static Object charObject(char i) {
return new Character(i);
}
public static Object longObject(long i) {
return new Long(i);
}
public static Object floatObject(float i) {
return new Float(i);
}
public static Object doubleObject(double i) {
return new Double(i);
}
public static Object booleanObject(boolean i) {
return new Boolean(i);
}
public static Object voidObject() {
return null;
}
public static int intValue(Object o) {
if (o == null) {
return 0;
} else if (o instanceof Number) {
return ((Number)o).intValue();
} else {
throw new ClassCastException(o.getClass().getName() +
" can not be converted to int");
}
}
public static long longValue(Object o) {
if (o == null) {
return 0;
} else if (o instanceof Number) {
return ((Number)o).longValue();
} else {
throw new ClassCastException(o.getClass().getName() +
" can not be converted to long");
}
}
public static float floatValue(Object o) {
if (o == null) {
return 0;
} else if (o instanceof Number) {
return ((Number)o).floatValue();
} else {
throw new ClassCastException(o.getClass().getName() +
" can not be converted to float");
}
}
public static double doubleValue(Object o) {
if (o == null) {
return 0;
} else if (o instanceof Number) {
return ((Number)o).doubleValue();
} else {
throw new ClassCastException(o.getClass().getName() +
" can not be converted to double");
}
}
public static byte byteValue(Object o) {
if (o == null) {
return 0;
} else if (o instanceof Number) {
return ((Number)o).byteValue();
} else {
throw new ClassCastException(o.getClass().getName() +
" can not be converted to byte");
}
}
public static short shortValue(Object o) {
if (o == null) {
return 0;
} else if (o instanceof Number) {
return ((Number)o).shortValue();
} else {
throw new ClassCastException(o.getClass().getName() +
" can not be converted to short");
}
}
public static char charValue(Object o) {
if (o == null) {
return 0;
} else if (o instanceof Character) {
return ((Character)o).charValue();
} else {
throw new ClassCastException(o.getClass().getName() +
" can not be converted to char");
}
}
public static boolean booleanValue(Object o) {
if (o == null) {
return false;
} else if (o instanceof Boolean) {
return ((Boolean)o).booleanValue();
} else {
throw new ClassCastException(o.getClass().getName() +
" can not be converted to boolean");
}
}
/**
* identity function for now. This is not typed to "void" because we happen
* to know that in Java, any void context (i.e., {@link ExprStmt})
* can also handle a return value.
*/
public static Object voidValue(Object o) {
if (o == null) {
return o;
} else {
// !!! this may be an error in the future
return o;
}
}
}