| // Copyright 2017 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.analysis.platform; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableMap; |
| import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable; |
| import com.google.devtools.build.lib.events.Location; |
| import com.google.devtools.build.lib.packages.NativeInfo; |
| import com.google.devtools.build.lib.packages.NativeProvider; |
| import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec; |
| import com.google.devtools.build.lib.skylarkbuildapi.platform.ToolchainInfoApi; |
| import com.google.devtools.build.lib.syntax.Environment; |
| import com.google.devtools.build.lib.syntax.EvalException; |
| import com.google.devtools.build.lib.syntax.FunctionSignature; |
| import com.google.devtools.build.lib.syntax.SkylarkDict; |
| import com.google.devtools.build.lib.syntax.SkylarkType; |
| import java.util.Map; |
| |
| /** |
| * A provider that supplies information about a specific language toolchain, including what platform |
| * constraints are required for execution and for the target platform. |
| */ |
| @Immutable |
| public class ToolchainInfo extends NativeInfo implements ToolchainInfoApi { |
| |
| /** Name used in Skylark for accessing this provider. */ |
| public static final String SKYLARK_NAME = "ToolchainInfo"; |
| |
| private static final FunctionSignature.WithValues<Object, SkylarkType> SIGNATURE = |
| FunctionSignature.WithValues.create( |
| FunctionSignature.of( |
| /*numMandatoryPositionals=*/ 0, |
| /*numOptionalPositionals=*/ 0, |
| /*numMandatoryNamedOnly*/ 0, |
| /*starArg=*/ false, |
| /*kwArg=*/ true, |
| /*names=*/ "data"), |
| /*defaultValues=*/ null, |
| /*types=*/ ImmutableList.<SkylarkType>of(SkylarkType.DICT)); |
| |
| /** Skylark constructor and identifier for this provider. */ |
| @AutoCodec |
| public static final NativeProvider<ToolchainInfo> PROVIDER = |
| new NativeProvider<ToolchainInfo>(ToolchainInfo.class, SKYLARK_NAME, SIGNATURE) { |
| @Override |
| protected ToolchainInfo createInstanceFromSkylark( |
| Object[] args, Environment env, Location loc) throws EvalException { |
| Map<String, Object> data = |
| SkylarkDict.castSkylarkDictOrNoneToDict(args[0], String.class, Object.class, "data"); |
| return ToolchainInfo.create(data, loc); |
| } |
| }; |
| |
| public ToolchainInfo(Map<String, Object> values, Location location) { |
| super(PROVIDER, ImmutableMap.copyOf(values), location); |
| } |
| |
| public static ToolchainInfo create(Map<String, Object> toolchainData) { |
| return create(toolchainData, Location.BUILTIN); |
| } |
| |
| public static ToolchainInfo create(Map<String, Object> toolchainData, Location loc) { |
| return new ToolchainInfo(toolchainData, loc); |
| } |
| |
| /** Add make variables to be exported to dependers. */ |
| public void addGlobalMakeVariables(ImmutableMap.Builder<String, String> globalMakeEnvBuilder) {} |
| } |