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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.search.yql;
import com.google.common.base.Joiner;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableSet;
import java.util.Set;
public class JavaUnionTypeChecker extends OperatorTypeChecker {
private final Set<Class<?>> types;
public JavaUnionTypeChecker(Operator parent, int idx, Set<Class<?>> types) {
super(parent, idx);
this.types = types;
}
public JavaUnionTypeChecker(Operator parent, int idx, Class<?>... types) {
super(parent, idx);
this.types = ImmutableSet.copyOf(types);
}
@Override
public void check(Object argument) {
Preconditions.checkNotNull(argument, "Argument %s of %s must not be null", idx, parent);
for (Class<?> candidate : types) {
if (candidate.isInstance(argument)) {
return;
}
}
Preconditions.checkArgument(false, "Argument %s of %s must be %s (is: %s).", idx, parent, Joiner.on("|").join(types), argument.getClass());
}
}
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