1 files changed, 98 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/rules/objc/CompilationArtifacts.java b/src/main/java/com/google/devtools/build/lib/rules/objc/CompilationArtifacts.java
new file mode 100644
index 0000000000..5aac139e57
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/rules/objc/CompilationArtifacts.java
@@ -0,0 +1,98 @@
+// Copyright 2014 Google Inc. 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;
+
+/**
+ * Artifacts related to compilation. Any rule containing compilable sources will create an instance
+ * of this class.
+ */
+final class CompilationArtifacts {
+  static class Builder {
+    private Iterable<Artifact> srcs = ImmutableList.of();
+    private Iterable<Artifact> nonArcSrcs = ImmutableList.of();
+    private Optional<Artifact> pchFile;
+    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;
+    }
+
+    Builder setPchFile(Optional<Artifact> pchFile) {
+      Preconditions.checkState(this.pchFile == null,
+          "pchFile is already set to: %s", this.pchFile);
+      this.pchFile = Preconditions.checkNotNull(pchFile);
+      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)) {
+        archive = Optional.of(intermediateArtifacts.archive());
+      }
+      return new CompilationArtifacts(srcs, nonArcSrcs, archive, pchFile);
+    }
+  }
+
+  private final Iterable<Artifact> srcs;
+  private final Iterable<Artifact> nonArcSrcs;
+  private final Optional<Artifact> archive;
+  private final Optional<Artifact> pchFile;
+
+  private CompilationArtifacts(
+      Iterable<Artifact> srcs,
+      Iterable<Artifact> nonArcSrcs,
+      Optional<Artifact> archive,
+      Optional<Artifact> pchFile) {
+    this.srcs = Preconditions.checkNotNull(srcs);
+    this.nonArcSrcs = Preconditions.checkNotNull(nonArcSrcs);
+    this.archive = Preconditions.checkNotNull(archive);
+    this.pchFile = Preconditions.checkNotNull(pchFile);
+  }
+
+  public Iterable<Artifact> getSrcs() {
+    return srcs;
+  }
+
+  public Iterable<Artifact> getNonArcSrcs() {
+    return nonArcSrcs;
+  }
+
+  public Optional<Artifact> getArchive() {
+    return archive;
+  }
+
+  public Optional<Artifact> getPchFile() {
+    return pchFile;
+  }
+}