| // Copyright 2016 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.collect.ImmutableSet; |
| import com.google.devtools.build.lib.analysis.RuleContext; |
| import com.google.devtools.build.lib.analysis.RuleErrorConsumer; |
| import com.google.devtools.build.lib.analysis.TransitiveInfoCollection; |
| import com.google.devtools.build.lib.analysis.config.BuildConfiguration; |
| import com.google.devtools.build.lib.packages.AspectDescriptor; |
| import com.google.devtools.build.lib.packages.StructImpl; |
| import com.google.devtools.build.lib.rules.cpp.CcToolchainFeatures.FeatureConfiguration; |
| import com.google.devtools.build.lib.rules.cpp.CppConfiguration.HeadersCheckingMode; |
| |
| /** |
| * CppSemantics for objc builds. |
| */ |
| public class ObjcCppSemantics implements CppSemantics { |
| public static final ObjcCppSemantics INSTANCE = new ObjcCppSemantics(); |
| |
| private ObjcCppSemantics() {} |
| |
| @Override |
| public void finalizeCompileActionBuilder( |
| BuildConfiguration configuration, |
| FeatureConfiguration featureConfiguration, |
| CppCompileActionBuilder actionBuilder, |
| RuleErrorConsumer ruleErrorConsumer) { |
| actionBuilder |
| // Without include scanning, we need the entire crosstool filegroup, including header files, |
| // as opposed to just the "compile" filegroup. Even with include scanning, we need the |
| // system framework headers since they are not being scanned right now. |
| // TODO(waltl): do better with include scanning. |
| .addTransitiveMandatoryInputs(actionBuilder.getToolchain().getAllFilesIncludingLibc()) |
| .setShouldScanIncludes( |
| configuration.getFragment(CppConfiguration.class).objcShouldScanIncludes()); |
| } |
| |
| @Override |
| public HeadersCheckingMode determineHeadersCheckingMode(RuleContext ruleContext) { |
| return HeadersCheckingMode.STRICT; |
| } |
| |
| @Override |
| public HeadersCheckingMode determineStarlarkHeadersCheckingMode( |
| RuleContext context, CppConfiguration cppConfig, CcToolchainProvider toolchain) { |
| if (cppConfig.strictHeaderCheckingFromStarlark()) { |
| return HeadersCheckingMode.STRICT; |
| } |
| return HeadersCheckingMode.LOOSE; |
| } |
| |
| @Override |
| public boolean allowIncludeScanning() { |
| return true; |
| } |
| |
| @Override |
| public boolean needsDotdInputPruning(BuildConfiguration configuration) { |
| return configuration.getFragment(CppConfiguration.class).objcShouldGenerateDotdFiles(); |
| } |
| |
| @Override |
| public void validateAttributes(RuleContext ruleContext) { |
| } |
| |
| @Override |
| public boolean needsIncludeValidation() { |
| return true; |
| } |
| |
| /** cc_shared_library is not supported with Objective-C */ |
| @Override |
| public StructImpl getCcSharedLibraryInfo(TransitiveInfoCollection dep) { |
| return null; |
| } |
| |
| @Override |
| public void validateLayeringCheckFeatures( |
| RuleContext ruleContext, |
| AspectDescriptor aspectDescriptor, |
| CcToolchainProvider ccToolchain, |
| ImmutableSet<String> unsupportedFeatures) {} |
| } |