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// Copyright 2017 Yahoo Holdings. 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.Preconditions;
import java.util.List;
final class ArgumentsTypeChecker {
private final Operator target;
private final List<OperatorTypeChecker> checkers;
public ArgumentsTypeChecker(Operator target, List<OperatorTypeChecker> checkers) {
this.target = target;
this.checkers = checkers;
}
public void check(Object... args) {
if (args == null) {
Preconditions.checkArgument(checkers.size() == 0, "Operator %s argument count mismatch: expected %s got 0", target, checkers.size());
return;
} else {
Preconditions.checkArgument(args.length == checkers.size(), "Operator %s argument count mismatch: expected: %s got %s", target, checkers.size(), args.length);
}
for (int i = 0; i < checkers.size(); ++i) {
checkers.get(i).check(args[i]);
}
}
}
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