| // Copyright 2014 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.Preconditions; |
| import com.google.devtools.build.lib.actions.Artifact; |
| import com.google.devtools.build.lib.cmdline.Label; |
| import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable; |
| import com.google.devtools.build.lib.packages.BuiltinProvider; |
| import com.google.devtools.build.lib.packages.NativeInfo; |
| import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec; |
| import com.google.devtools.build.lib.starlarkbuildapi.cpp.DebugPackageInfoApi; |
| import javax.annotation.Nullable; |
| import net.starlark.java.eval.EvalException; |
| import net.starlark.java.eval.Starlark; |
| |
| /** |
| * Provides the binary artifact and its associated .dwp files, if fission is enabled. If Fission |
| * ({@url https://gcc.gnu.org/wiki/DebugFission}) is not enabled, the dwp file will be null. |
| */ |
| @Immutable |
| @AutoCodec |
| public final class DebugPackageProvider extends NativeInfo |
| implements DebugPackageInfoApi<Artifact> { |
| public static final Provider PROVIDER = new Provider(); |
| |
| private final Label targetLabel; |
| private final Artifact strippedArtifact; |
| private final Artifact unstrippedArtifact; |
| @Nullable private final Artifact dwpArtifact; |
| |
| @AutoCodec.Instantiator |
| public DebugPackageProvider( |
| Label targetLabel, |
| @Nullable Artifact strippedArtifact, |
| Artifact unstrippedArtifact, |
| @Nullable Artifact dwpArtifact) { |
| super(PROVIDER); |
| Preconditions.checkNotNull(unstrippedArtifact); |
| this.targetLabel = targetLabel; |
| this.strippedArtifact = strippedArtifact; |
| this.unstrippedArtifact = unstrippedArtifact; |
| this.dwpArtifact = dwpArtifact; |
| } |
| |
| /** Returns the label for the *_binary target. */ |
| @Override |
| public final Label getTargetLabel() { |
| return targetLabel; |
| } |
| |
| /** Returns the stripped file (the explicit ".stripped" target). */ |
| @Override |
| public final Artifact getStrippedArtifact() { |
| return strippedArtifact; |
| } |
| |
| /** Returns the unstripped file (the default executable target). */ |
| @Override |
| public final Artifact getUnstrippedArtifact() { |
| return unstrippedArtifact; |
| } |
| |
| /** Returns the .dwp file (for fission builds) or null if --fission=no. */ |
| @Nullable |
| @Override |
| public final Artifact getDwpArtifact() { |
| return dwpArtifact; |
| } |
| |
| /** Provider class for {@link DebugPackageProvider} objects. */ |
| public static class Provider extends BuiltinProvider<DebugPackageProvider> |
| implements DebugPackageInfoApi.Provider<Artifact> { |
| private Provider() { |
| super(DebugPackageInfoApi.NAME, DebugPackageProvider.class); |
| } |
| |
| @Override |
| public DebugPackageProvider createDebugPackageInfo( |
| Label starlarkTargetLabel, |
| Artifact starlarkStrippedArtifact, |
| Artifact starlarkUnstrippedArtifact, |
| Object starlarkDwpArtifact) |
| throws EvalException { |
| return new DebugPackageProvider( |
| starlarkTargetLabel, |
| starlarkStrippedArtifact, |
| starlarkUnstrippedArtifact, |
| nullIfNone(starlarkDwpArtifact, Artifact.class)); |
| } |
| |
| @Nullable |
| private static <T> T nullIfNone(Object object, Class<T> type) { |
| return object != Starlark.NONE ? type.cast(object) : null; |
| } |
| } |
| } |