| // 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.java; |
| |
| import static com.google.common.collect.ImmutableList.toImmutableList; |
| |
| import com.google.auto.value.AutoValue; |
| import com.google.common.collect.ImmutableList; |
| import com.google.devtools.build.lib.collect.nestedset.Depset; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSet; |
| import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable; |
| import com.google.devtools.build.lib.packages.StructImpl; |
| import com.google.devtools.build.lib.rules.cpp.CcInfo; |
| import com.google.devtools.build.lib.rules.cpp.CcNativeLibraryInfo; |
| import com.google.devtools.build.lib.rules.cpp.LibraryToLink; |
| import com.google.devtools.build.lib.rules.java.JavaInfo.JavaInfoInternalProvider; |
| import java.util.Collection; |
| import javax.annotation.Nullable; |
| import net.starlark.java.eval.EvalException; |
| |
| /** Provides information about C++ libraries to be linked into Java targets. */ |
| @Immutable |
| @AutoValue |
| public abstract class JavaCcInfoProvider implements JavaInfoInternalProvider { |
| |
| // TODO(b/183579145): Replace CcInfo with only linking information. |
| public abstract CcInfo getCcInfo(); |
| |
| public static JavaCcInfoProvider create(CcInfo ccInfo) { |
| return new AutoValue_JavaCcInfoProvider( |
| CcInfo.builder() |
| .setCcLinkingContext(ccInfo.getCcLinkingContext()) |
| .setCcNativeLibraryInfo(ccInfo.getCcNativeLibraryInfo()) |
| .build()); |
| } |
| |
| /** Merges several JavaCcInfoProvider providers into one. */ |
| public static JavaCcInfoProvider merge(Collection<JavaCcInfoProvider> providers) { |
| ImmutableList<CcInfo> ccInfos = |
| providers.stream().map(JavaCcInfoProvider::getCcInfo).collect(toImmutableList()); |
| return create(CcInfo.merge(ccInfos)); |
| } |
| |
| @Nullable |
| static JavaCcInfoProvider fromStarlarkJavaInfo(StructImpl javaInfo) throws EvalException { |
| CcInfo ccInfo = javaInfo.getValue("cc_link_params_info", CcInfo.class); |
| if (ccInfo == null) { |
| NestedSet<LibraryToLink> transitiveCcNativeLibraries = |
| Depset.cast( |
| javaInfo.getValue("transitive_native_libraries"), |
| LibraryToLink.class, |
| "transitive_native_libraries"); |
| if (transitiveCcNativeLibraries.isEmpty()) { |
| return null; |
| } |
| ccInfo = |
| CcInfo.builder() |
| .setCcNativeLibraryInfo(new CcNativeLibraryInfo(transitiveCcNativeLibraries)) |
| .build(); |
| } |
| return create(ccInfo); |
| } |
| } |