| // Copyright 2015 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.Artifact; |
| import com.google.devtools.build.lib.analysis.ConfiguredTarget; |
| import com.google.devtools.build.lib.analysis.RuleConfiguredTargetBuilder; |
| import com.google.devtools.build.lib.analysis.RuleConfiguredTargetFactory; |
| import com.google.devtools.build.lib.analysis.RuleContext; |
| import com.google.devtools.build.lib.analysis.RunfilesProvider; |
| import com.google.devtools.build.lib.analysis.TransitiveInfoCollection; |
| import com.google.devtools.build.lib.analysis.platform.ToolchainInfo; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder; |
| |
| /** |
| * Implementation of the {@code cc_toolchain_suite} rule. |
| * |
| * <p>This is currently a no-op because the logic that transforms this rule into something that can |
| * be understood by the {@code cc_*} rules is in |
| * {@link com.google.devtools.build.lib.rules.cpp.CppConfigurationLoader}. |
| */ |
| public class CcToolchainSuite implements RuleConfiguredTargetFactory { |
| |
| @Override |
| public ConfiguredTarget create(RuleContext ruleContext) |
| throws InterruptedException, RuleErrorException { |
| NestedSetBuilder<Artifact> filesToBuild = NestedSetBuilder.stableOrder(); |
| for (TransitiveInfoCollection dep : ruleContext.getPrerequisiteMap("toolchains").values()) { |
| CcToolchainProvider provider = |
| (CcToolchainProvider) dep.get(ToolchainInfo.PROVIDER); |
| if (provider != null) { |
| filesToBuild.addTransitive(provider.getCrosstool()); |
| } |
| } |
| |
| return new RuleConfiguredTargetBuilder(ruleContext) |
| .setFilesToBuild(filesToBuild.build()) |
| .add(RunfilesProvider.class, RunfilesProvider.EMPTY) |
| .build(); |
| } |
| } |