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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.tensor.impl;
import com.yahoo.tensor.TensorAddress;
import static java.lang.Math.abs;
/**
* A two-dimensional address.
*
* @author baldersheim
*/
final class TensorAddressAny2 extends TensorAddressAny {
private final int label0, label1;
TensorAddressAny2(int label0, int label1) {
this.label0 = label0;
this.label1 = label1;
}
@Override public int size() { return 2; }
@Override
public long numericLabel(int i) {
return switch (i) {
case 0 -> label0;
case 1 -> label1;
default -> throw new IndexOutOfBoundsException("Index is not in [0,1]: " + i);
};
}
@Override
public TensorAddress withLabel(int labelIndex, long label) {
return switch (labelIndex) {
case 0 -> new TensorAddressAny2(Convert.safe2Int(label), label1);
case 1 -> new TensorAddressAny2(label0, Convert.safe2Int(label));
default -> throw new IllegalArgumentException("No label " + labelIndex);
};
}
@Override
public int hashCode() {
return abs(label0) | (abs(label1) << 32 - Integer.numberOfLeadingZeros(abs(label0)));
}
@Override
public boolean equals(Object o) {
return (o instanceof TensorAddressAny2 any) && (label0 == any.label0) && (label1 == any.label1);
}
}
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