/*
* 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.j2objc.ast;
/**
* Wraps an assertion error with information about the node where the error occurred.
*/
public class TreeVisitorError extends AssertionError {
TreeVisitorError(Throwable original, TreeNode node) {
super(constructMessage(original, node), original.getCause());
setStackTrace(original.getStackTrace());
for (Throwable t : original.getSuppressed()) {
addSuppressed(t);
}
}
private static String constructMessage(Throwable original, TreeNode node) {
CompilationUnit unit = TreeUtil.getCompilationUnit(node);
String msg = original.getMessage();
if (msg == null || msg.isEmpty()) {
msg = original.getClass().getSimpleName();
}
if (unit == null) {
return msg;
}
return String.format(
"%s:%s: %s", unit.getSourceFilePath(), node.getLineNumber(), msg);
}
}