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/* ____ ____ ____ ____ ______ *\
** / __// __ \/ __// __ \/ ____/ SOcos COmpiles Scala **
** __\_ \/ /_/ / /__/ /_/ /\_ \ (c) 2002, LAMP/EPFL **
** /_____/\____/\___/\____/____/ **
\* */
// $Id$
package scalac.atree;
import scalac.util.Debug;
/** This class represents a test operation. */
public class ATestOp {
//########################################################################
// Public Cases
/** An equality test */
public case EQ;
/** A non-equality test */
public case NE;
/** A less-than test */
public case LT;
/** A greater-than-or-equal test */
public case GE;
/** A less-than-or-equal test */
public case LE;
/** A greater-than test */
public case GT;
//########################################################################
// Public Methods
/** Returns the negation of this operation. */
public ATestOp negate() {
switch (this) {
case EQ: return NE;
case NE: return EQ;
case LT: return GE;
case GE: return LT;
case LE: return GT;
case GT: return LE;
default: throw Debug.abort("unknown case", this);
}
}
/** Returns a string representation of this operation. */
public String toString() {
switch (this) {
case EQ: return "EQ";
case NE: return "NE";
case LT: return "LT";
case GE: return "GE";
case LE: return "LE";
case GT: return "GT";
default: throw Debug.abort("unknown case", this);
}
}
//########################################################################
}
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