| // 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.common.collect.ImmutableList; |
| import com.google.devtools.build.lib.actions.Artifact; |
| import com.google.devtools.build.lib.analysis.RuleConfiguredTargetBuilder; |
| import com.google.devtools.build.lib.analysis.RuleContext; |
| import com.google.devtools.build.lib.analysis.skylark.SkylarkApiProvider; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSet; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder; |
| import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec; |
| import com.google.devtools.build.lib.skylarkbuildapi.cpp.CcSkylarkApiProviderApi; |
| import com.google.devtools.build.lib.syntax.Depset; |
| import com.google.devtools.build.lib.vfs.PathFragment; |
| |
| /** |
| * A class that exposes the C++ providers to Skylark. It is intended to provide a simple and stable |
| * interface for Skylark users. |
| */ |
| @AutoCodec |
| public final class CcSkylarkApiProvider extends SkylarkApiProvider |
| implements CcSkylarkApiProviderApi<Artifact> { |
| /** The name of the field in Skylark used to access this class. */ |
| public static final String NAME = "cc"; |
| |
| public static void maybeAdd(RuleContext ruleContext, RuleConfiguredTargetBuilder builder) { |
| if (ruleContext.getFragment(CppConfiguration.class).enableLegacyCcProvider()) { |
| builder.addSkylarkTransitiveInfo(NAME, new CcSkylarkApiProvider()); |
| } |
| } |
| |
| @Override |
| public Depset /*<Artifact>*/ getTransitiveHeadersForStarlark() { |
| return Depset.of(Artifact.TYPE, getTransitiveHeaders()); |
| } |
| |
| NestedSet<Artifact> getTransitiveHeaders() { |
| CcCompilationContext ccCompilationContext = |
| getInfo().get(CcInfo.PROVIDER).getCcCompilationContext(); |
| return ccCompilationContext.getDeclaredIncludeSrcs(); |
| } |
| |
| @Override |
| public Depset /*<Artifact>*/ getLibrariesForStarlark() { |
| return Depset.of(Artifact.TYPE, getLibraries()); |
| } |
| |
| NestedSet<Artifact> getLibraries() { |
| NestedSetBuilder<Artifact> libs = NestedSetBuilder.linkOrder(); |
| CcInfo ccInfo = getInfo().get(CcInfo.PROVIDER); |
| if (ccInfo == null) { |
| return libs.build(); |
| } |
| for (Artifact lib : ccInfo.getCcLinkingContext().getStaticModeParamsForExecutableLibraries()) { |
| libs.add(lib); |
| } |
| return libs.build(); |
| } |
| |
| @Override |
| public ImmutableList<String> getLinkopts() { |
| CcInfo ccInfo = getInfo().get(CcInfo.PROVIDER); |
| if (ccInfo == null) { |
| return ImmutableList.of(); |
| } |
| return ccInfo.getCcLinkingContext().getFlattenedUserLinkFlags(); |
| } |
| |
| @Override |
| public ImmutableList<String> getDefines() { |
| CcCompilationContext ccCompilationContext = |
| getInfo().get(CcInfo.PROVIDER).getCcCompilationContext(); |
| return ccCompilationContext == null |
| ? ImmutableList.<String>of() |
| : ccCompilationContext.getDefines().toList(); |
| } |
| |
| @Override |
| public ImmutableList<String> getSystemIncludeDirs() { |
| CcCompilationContext ccCompilationContext = |
| getInfo().get(CcInfo.PROVIDER).getCcCompilationContext(); |
| if (ccCompilationContext == null) { |
| return ImmutableList.of(); |
| } |
| ImmutableList.Builder<String> builder = ImmutableList.builder(); |
| for (PathFragment path : ccCompilationContext.getSystemIncludeDirs()) { |
| builder.add(path.getSafePathString()); |
| } |
| return builder.build(); |
| } |
| |
| @Override |
| public ImmutableList<String> getIncludeDirs() { |
| CcCompilationContext ccCompilationContext = |
| getInfo().get(CcInfo.PROVIDER).getCcCompilationContext(); |
| if (ccCompilationContext == null) { |
| return ImmutableList.of(); |
| } |
| ImmutableList.Builder<String> builder = ImmutableList.builder(); |
| for (PathFragment path : ccCompilationContext.getIncludeDirs()) { |
| builder.add(path.getSafePathString()); |
| } |
| return builder.build(); |
| } |
| |
| @Override |
| public ImmutableList<String> getQuoteIncludeDirs() { |
| CcCompilationContext ccCompilationContext = |
| getInfo().get(CcInfo.PROVIDER).getCcCompilationContext(); |
| if (ccCompilationContext == null) { |
| return ImmutableList.of(); |
| } |
| ImmutableList.Builder<String> builder = ImmutableList.builder(); |
| for (PathFragment path : ccCompilationContext.getQuoteIncludeDirs()) { |
| builder.add(path.getSafePathString()); |
| } |
| return builder.build(); |
| } |
| |
| @Override |
| public ImmutableList<String> getCcFlags() { |
| CcCompilationContext ccCompilationContext = |
| getInfo().get(CcInfo.PROVIDER).getCcCompilationContext(); |
| |
| ImmutableList.Builder<String> options = ImmutableList.builder(); |
| for (String define : ccCompilationContext.getDefines().toList()) { |
| options.add("-D" + define); |
| } |
| for (PathFragment path : ccCompilationContext.getSystemIncludeDirs()) { |
| options.add("-isystem " + path.getSafePathString()); |
| } |
| for (PathFragment path : ccCompilationContext.getIncludeDirs()) { |
| options.add("-I " + path.getSafePathString()); |
| } |
| for (PathFragment path : ccCompilationContext.getQuoteIncludeDirs()) { |
| options.add("-iquote " + path.getSafePathString()); |
| } |
| |
| return options.build(); |
| } |
| } |