org.snapscript.dx.BinaryOp Maven / Gradle / Ivy
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.snapscript.dx;
import org.snapscript.dx.rop.code.Rop;
import org.snapscript.dx.rop.code.Rops;
import org.snapscript.dx.rop.type.TypeList;
/**
* An operation on two values of the same type.
*
* Math operations ({@link #ADD}, {@link #SUBTRACT}, {@link #MULTIPLY},
* {@link #DIVIDE}, and {@link #REMAINDER}) support ints, longs, floats and
* doubles.
*
*
Bit operations ({@link #AND}, {@link #OR}, {@link #XOR}, {@link
* #SHIFT_LEFT}, {@link #SHIFT_RIGHT}, {@link #UNSIGNED_SHIFT_RIGHT}) support
* ints and longs.
*
*
Division by zero behaves differently depending on the operand type.
* For int and long operands, {@link #DIVIDE} and {@link #REMAINDER} throw
* {@link ArithmeticException} if {@code b == 0}. For float and double operands,
* the operations return {@code NaN}.
*/
public enum BinaryOp {
/** {@code a + b} */
ADD() {
@Override Rop rop(TypeList types) {
return Rops.opAdd(types);
}
},
/** {@code a - b} */
SUBTRACT() {
@Override Rop rop(TypeList types) {
return Rops.opSub(types);
}
},
/** {@code a * b} */
MULTIPLY() {
@Override Rop rop(TypeList types) {
return Rops.opMul(types);
}
},
/** {@code a / b} */
DIVIDE() {
@Override Rop rop(TypeList types) {
return Rops.opDiv(types);
}
},
/** {@code a % b} */
REMAINDER() {
@Override Rop rop(TypeList types) {
return Rops.opRem(types);
}
},
/** {@code a & b} */
AND() {
@Override Rop rop(TypeList types) {
return Rops.opAnd(types);
}
},
/** {@code a | b} */
OR() {
@Override Rop rop(TypeList types) {
return Rops.opOr(types);
}
},
/** {@code a ^ b} */
XOR() {
@Override Rop rop(TypeList types) {
return Rops.opXor(types);
}
},
/** {@code a << b} */
SHIFT_LEFT() {
@Override Rop rop(TypeList types) {
return Rops.opShl(types);
}
},
/** {@code a >> b} */
SHIFT_RIGHT() {
@Override Rop rop(TypeList types) {
return Rops.opShr(types);
}
},
/** {@code a >>> b} */
UNSIGNED_SHIFT_RIGHT() {
@Override Rop rop(TypeList types) {
return Rops.opUshr(types);
}
};
abstract Rop rop(org.snapscript.dx.rop.type.TypeList types);
}