| // Copyright 2014 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.rules.cpp; |
| |
| import com.google.devtools.build.lib.actions.Action; |
| import com.google.devtools.build.lib.actions.ActionExecutionException; |
| import com.google.devtools.build.lib.actions.Artifact; |
| |
| /** |
| * Accumulator for problems encountered while reading or validating inclusion |
| * results. |
| */ |
| class IncludeProblems { |
| |
| private StringBuilder message; // null when no problems |
| |
| void add(String included) { |
| if (message == null) { message = new StringBuilder(); } |
| message.append("\n '" + included + "'"); |
| } |
| |
| boolean hasProblems() { return message != null; } |
| |
| String getMessage(Action action, Artifact sourceFile) { |
| if (message != null) { |
| return "undeclared inclusion(s) in rule '" + action.getOwner().getLabel() + "':\n" |
| + "this rule is missing dependency declarations for the following files " |
| + "included by '" + sourceFile.prettyPrint() + "':" |
| + message; |
| } |
| return null; |
| } |
| |
| void assertProblemFree(Action action, Artifact sourceFile) throws ActionExecutionException { |
| if (hasProblems()) { |
| throw new ActionExecutionException(getMessage(action, sourceFile), action, false); |
| } |
| } |
| } |