| // Copyright 2019 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.Joiner; |
| import com.google.common.base.Preconditions; |
| import com.google.devtools.build.lib.analysis.config.BuildOptions; |
| import com.google.devtools.build.lib.rules.cpp.CcToolchainFeatures.FeatureConfiguration; |
| import com.google.devtools.build.lib.starlarkbuildapi.cpp.FeatureConfigurationApi; |
| import net.starlark.java.eval.Printer; |
| import net.starlark.java.eval.StarlarkSemantics; |
| |
| /** |
| * Wrapper for {@link FeatureConfiguration}, {@link CppConfiguration}, and {@link BuildOptions}. |
| * |
| * <p>Instances are created in Starlark by cc_common.configure_features(ctx, cc_toolchain), and |
| * passed around pretending to be {@link FeatureConfiguration}. Then when the need arises, we get |
| * the {@link CppConfiguration} and {@link BuildOptions} from it and use it in times when |
| * configuration of cc_toolchain is different than configuration of the rule depending on it. |
| */ |
| // TODO(b/129045294): Remove once cc_toolchain has target configuration. |
| public class FeatureConfigurationForStarlark implements FeatureConfigurationApi { |
| |
| private final FeatureConfiguration featureConfiguration; |
| private final CppConfiguration cppConfiguration; |
| private final BuildOptions buildOptions; |
| |
| public static FeatureConfigurationForStarlark from( |
| FeatureConfiguration featureConfiguration, |
| CppConfiguration cppConfiguration, |
| BuildOptions buildOptions) { |
| return new FeatureConfigurationForStarlark( |
| featureConfiguration, cppConfiguration, buildOptions); |
| } |
| |
| private FeatureConfigurationForStarlark( |
| FeatureConfiguration featureConfiguration, |
| CppConfiguration cppConfiguration, |
| BuildOptions buildOptions) { |
| this.featureConfiguration = Preconditions.checkNotNull(featureConfiguration); |
| this.cppConfiguration = Preconditions.checkNotNull(cppConfiguration); |
| this.buildOptions = buildOptions; |
| } |
| |
| public FeatureConfiguration getFeatureConfiguration() { |
| return featureConfiguration; |
| } |
| |
| @Override |
| public void str(Printer printer, StarlarkSemantics semantics) { |
| printer.append("<FeatureConfiguration("); |
| printer.append("ENABLED:"); |
| printer.append(Joiner.on(", ").join(featureConfiguration.getEnabledFeatureNames())); |
| printer.append(";REQUESTED:"); |
| printer.append(Joiner.on(", ").join(featureConfiguration.getRequestedFeatures())); |
| printer.append(")>"); |
| } |
| |
| @Override |
| public void debugPrint(Printer printer, StarlarkSemantics semantics) { |
| printer.append("<FeatureConfiguration("); |
| printer.append(Joiner.on(", ").join(featureConfiguration.getEnabledFeatureNames())); |
| printer.append(")>"); |
| } |
| |
| /** |
| * Get {@link CppConfiguration} that is threaded along with {@link FeatureConfiguration}. Do this |
| * only when you're completely aware of why this method was added and hlopko@ allowed you to. |
| * |
| * @deprecated will be removed soon by b/129045294. |
| */ |
| @Deprecated |
| CppConfiguration |
| getCppConfigurationFromFeatureConfigurationCreatedForStarlark_andIKnowWhatImDoing() { |
| return cppConfiguration; |
| } |
| |
| /** |
| * Get {@link BuildOptions} that is threaded along with {@link FeatureConfiguration}. Do this only |
| * when you're completely aware of why this method was added and hlopko@ allowed you to. |
| * |
| * @deprecated will be removed soon by b/129045294. |
| */ |
| @Deprecated |
| BuildOptions getBuildOptionsFromFeatureConfigurationCreatedForStarlark_andIKnowWhatImDoing() { |
| return buildOptions; |
| } |
| } |