/*
 * Copyright 2020 Google 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.google.j2cl.ast.processors.common;

/** Wrapper for exceptions thrown from processors. */
public class ProcessorError extends Error {

  public ProcessorError(Object context, Object node, Throwable cause) {
    super("Context:\n\n" + context + "\n");
    initCause(new ProcessorError("Error while processing:\n\n" + node + "\n", cause));
  }

  private ProcessorError(String msg, Throwable cause) {
    super(msg, cause);
  }
}

@@ -861,16 +861,55 @@
 itCause(
+%0A        context != node%0A            ? 
 new Proc
@@ -970,16 +970,36 @@
 , cause)
+%0A            : cause
 );%0A  %7D%0A%0A

Make sure context is not printed twice in processor exceptions