| // Copyright 2021 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.proto; |
| |
| import com.google.auto.value.AutoValue; |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableList; |
| import com.google.devtools.build.lib.analysis.FilesToRunProvider; |
| import com.google.devtools.build.lib.analysis.RuleContext; |
| import com.google.devtools.build.lib.packages.BuiltinProvider; |
| import com.google.devtools.build.lib.packages.NativeInfo; |
| import com.google.devtools.build.lib.starlarkbuildapi.proto.ProtoBootstrap; |
| import javax.annotation.Nullable; |
| |
| /** Toolchain for {@code proto_*} rules. */ |
| @AutoValue |
| public abstract class ProtoToolchainInfo extends NativeInfo { |
| public static final ProtoToolchainInfoProvider PROVIDER = new ProtoToolchainInfoProvider(); |
| |
| /** Creates a {@link ProtoToolchainInfo} from a {@link RuleContext}. */ |
| @Nullable |
| public static ProtoToolchainInfo fromRuleContext(RuleContext ruleContext) { |
| Preconditions.checkNotNull(ruleContext); |
| |
| FilesToRunProvider compiler = ruleContext.getExecutablePrerequisite(":proto_compiler"); |
| if (compiler == null) { |
| return null; |
| } |
| |
| ProtoConfiguration protoConfiguration = ruleContext.getFragment(ProtoConfiguration.class); |
| if (protoConfiguration == null) { |
| return null; |
| } |
| |
| return new AutoValue_ProtoToolchainInfo(PROVIDER, compiler, protoConfiguration.protocOpts()); |
| } |
| |
| public abstract FilesToRunProvider getCompiler(); |
| |
| public abstract ImmutableList<String> getCompilerOptions(); |
| |
| /** Provider class for {@link ProtoToolchainInfo} objects. */ |
| public static class ProtoToolchainInfoProvider extends BuiltinProvider<ProtoToolchainInfo> { |
| public ProtoToolchainInfoProvider() { |
| super(ProtoBootstrap.PROTO_TOOLCHAIN_INFO_STARLARK_NAME, ProtoToolchainInfo.class); |
| } |
| } |
| } |