/*
 * Copyright 2015-present Facebook, Inc.
 *
 * 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.facebook.buck.rules.keys;

import com.facebook.buck.rules.RuleKeyObjectSink;

class DefaultAlterRuleKey implements AlterRuleKey {
  private final ValueExtractor valueExtractor;

  DefaultAlterRuleKey(ValueExtractor valueExtractor) {
    this.valueExtractor = valueExtractor;
  }

  @Override
  public void amendKey(RuleKeyObjectSink builder, Object addsToRuleKey) {
    builder.setReflectively(valueExtractor.getName(), valueExtractor.getValue(addsToRuleKey));
  }
}

@@ -688,16 +688,90 @@
 ectSink;
+%0Aimport com.facebook.buck.util.exceptions.BuckUncheckedExecutionException;
 %0A%0Aclass 
@@ -1048,24 +1048,36 @@
 oRuleKey) %7B%0A
+    try %7B%0A  
     builder.
@@ -1159,14 +1159,147 @@
 eKey));%0A
+    %7D catch (Exception e) %7B%0A      throw new BuckUncheckedExecutionException(e, %22When amending %25s.%22, valueExtractor.getName());%0A    %7D%0A
   %7D%0A%7D%0A

Improve error message when computing a rulekey fails