src/main/java/com/google/devtools/build/lib/packages/AbstractRuleErrorConsumer.java

// Copyright 2017 The Bazel Authors. All rights reserved.
//
// 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 com.google.devtools.build.lib.packages;

import com.google.devtools.build.lib.packages.RuleClass.ConfiguredTargetFactory.RuleErrorException;

/** Defines several helper methods to avoid duplication between {@link RuleErrorConsumer}s. */
public abstract class AbstractRuleErrorConsumer implements RuleErrorConsumer {

  @Override
  public RuleErrorException throwWithRuleError(String message) throws RuleErrorException {
    ruleError(message);
    throw new RuleErrorException();
  }

  @Override
  public RuleErrorException throwWithAttributeError(String attrName, String message)
      throws RuleErrorException {
    attributeError(attrName, message);
    throw new RuleErrorException();
  }

  @Override
  public void assertNoErrors() throws RuleErrorException {
    if (hasErrors()) {
      throw new RuleErrorException();
    }
  }
}