| // Copyright 2018 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.common.base.Preconditions; |
| import com.google.devtools.build.lib.actions.ActionExecutionContext; |
| import com.google.devtools.build.lib.actions.Artifact; |
| import com.google.devtools.build.lib.actions.ExecException; |
| import com.google.devtools.build.lib.rules.cpp.IncludeScanner.IncludeScannerSupplier; |
| import com.google.devtools.build.lib.rules.cpp.IncludeScanner.IncludeScanningHeaderData; |
| import com.google.devtools.build.lib.rules.cpp.IncludeScanner.IncludeScanningPreparer; |
| import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec; |
| import javax.annotation.Nullable; |
| |
| /** Runs include scanning on actions, if include scanning is enabled. */ |
| public class IncludeScanning implements IncludeProcessing { |
| @AutoCodec public static final IncludeScanning INSTANCE = new IncludeScanning(); |
| |
| @Override |
| public @Nullable Iterable<Artifact> determineAdditionalInputs( |
| @Nullable IncludeScannerSupplier includeScannerSupplier, |
| CppCompileAction action, |
| ActionExecutionContext actionExecutionContext, |
| IncludeScanningHeaderData includeScanningHeaderData) |
| throws ExecException, InterruptedException { |
| // Return null when no include scanning occurs, as opposed to an empty set, to distinguish from |
| // the case where includes are scanned but none are found. |
| if (!action.shouldScanIncludes()) { |
| return null; |
| } |
| |
| return IncludeScanningPreparer.scanForIncludedInputs( |
| action, |
| Preconditions.checkNotNull(includeScannerSupplier, action), |
| includeScanningHeaderData, |
| action, |
| actionExecutionContext, |
| actionExecutionContext.getInputPath(action.getSourceFile()).getPathString()); |
| } |
| } |