| // 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.objc; |
| |
| import com.google.common.base.Optional; |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Iterables; |
| import com.google.devtools.build.lib.actions.Artifact; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSet; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder; |
| |
| /** |
| * Artifacts related to compilation. Any rule containing compilable sources will create an instance |
| * of this class. |
| */ |
| final class CompilationArtifacts { |
| static class Builder { |
| // TODO(bazel-team): Should these be sets instead of just iterables? |
| private Iterable<Artifact> srcs = ImmutableList.of(); |
| private Iterable<Artifact> nonArcSrcs = ImmutableList.of(); |
| private NestedSetBuilder<Artifact> additionalHdrs = NestedSetBuilder.stableOrder(); |
| private Iterable<Artifact> privateHdrs = ImmutableList.of(); |
| private Iterable<Artifact> precompiledSrcs = ImmutableList.of(); |
| private IntermediateArtifacts intermediateArtifacts; |
| |
| Builder addSrcs(Iterable<Artifact> srcs) { |
| this.srcs = Iterables.concat(this.srcs, srcs); |
| return this; |
| } |
| |
| Builder addNonArcSrcs(Iterable<Artifact> nonArcSrcs) { |
| this.nonArcSrcs = Iterables.concat(this.nonArcSrcs, nonArcSrcs); |
| return this; |
| } |
| |
| /** |
| * Adds header artifacts that should be directly accessible to dependers, but aren't specified |
| * in the hdrs attribute. Note that the underlying infrastructure may flatten the nested set. |
| */ |
| Builder addAdditionalHdrs(NestedSet<Artifact> additionalHdrs) { |
| this.additionalHdrs.addTransitive(additionalHdrs); |
| return this; |
| } |
| |
| /** |
| * Adds header artifacts that should be directly accessible to dependers, but aren't specified |
| * in the hdrs attribute. |
| */ |
| Builder addAdditionalHdrs(Iterable<Artifact> additionalHdrs) { |
| this.additionalHdrs.addAll(additionalHdrs); |
| return this; |
| } |
| |
| /** |
| * Adds header artifacts that should not be directly accessible to dependers. |
| * {@code privateHdrs} should not be a {@link NestedSet}, as it will be flattened when added. |
| */ |
| Builder addPrivateHdrs(Iterable<Artifact> privateHdrs) { |
| this.privateHdrs = Iterables.concat(this.privateHdrs, privateHdrs); |
| return this; |
| } |
| |
| /** |
| * Adds precompiled sources (.o files). |
| */ |
| Builder addPrecompiledSrcs(Iterable<Artifact> precompiledSrcs) { |
| // TODO(ulfjack): These are ignored *except* for a check below whether they are empty. |
| this.precompiledSrcs = Iterables.concat(this.precompiledSrcs, precompiledSrcs); |
| return this; |
| } |
| |
| Builder setIntermediateArtifacts(IntermediateArtifacts intermediateArtifacts) { |
| Preconditions.checkState(this.intermediateArtifacts == null, |
| "intermediateArtifacts is already set to: %s", this.intermediateArtifacts); |
| this.intermediateArtifacts = intermediateArtifacts; |
| return this; |
| } |
| |
| CompilationArtifacts build() { |
| Optional<Artifact> archive = Optional.absent(); |
| if (!Iterables.isEmpty(srcs) |
| || !Iterables.isEmpty(nonArcSrcs) |
| || !Iterables.isEmpty(precompiledSrcs)) { |
| archive = Optional.of(intermediateArtifacts.archive()); |
| } |
| return new CompilationArtifacts( |
| srcs, nonArcSrcs, additionalHdrs.build(), privateHdrs, archive); |
| } |
| } |
| |
| private final Iterable<Artifact> srcs; |
| private final Iterable<Artifact> nonArcSrcs; |
| private final Optional<Artifact> archive; |
| private final NestedSet<Artifact> additionalHdrs; |
| private final Iterable<Artifact> privateHdrs; |
| |
| private CompilationArtifacts( |
| Iterable<Artifact> srcs, |
| Iterable<Artifact> nonArcSrcs, |
| NestedSet<Artifact> additionalHdrs, |
| Iterable<Artifact> privateHdrs, |
| Optional<Artifact> archive) { |
| this.srcs = Preconditions.checkNotNull(srcs); |
| this.nonArcSrcs = Preconditions.checkNotNull(nonArcSrcs); |
| this.additionalHdrs = Preconditions.checkNotNull(additionalHdrs); |
| this.privateHdrs = Preconditions.checkNotNull(privateHdrs); |
| this.archive = Preconditions.checkNotNull(archive); |
| } |
| |
| Iterable<Artifact> getSrcs() { |
| return srcs; |
| } |
| |
| Iterable<Artifact> getNonArcSrcs() { |
| return nonArcSrcs; |
| } |
| |
| /** Returns the public headers that aren't included in the hdrs attribute. */ |
| NestedSet<Artifact> getAdditionalHdrs() { |
| return additionalHdrs; |
| } |
| |
| /** |
| * Returns the private headers from the srcs attribute, which may by imported by any source or |
| * header in this target, but not by sources or headers of dependers. |
| */ |
| Iterable<Artifact> getPrivateHdrs() { |
| return privateHdrs; |
| } |
| |
| /** |
| * Returns the output archive library (.a) file created by combining object files of the srcs, non |
| * arc srcs, and precompiled srcs of this artifact collection. Returns absent if there are no such |
| * source files for which to create an archive library. |
| */ |
| Optional<Artifact> getArchive() { |
| return archive; |
| } |
| } |