// 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.devtools.build.lib.actions.Artifact;
/**
* Something that appears on the command line of the linker. Since we sometimes expand archive
* files to their constituent object files, we need to keep information whether a certain file
* contains embedded objects and if so, the list of the object files themselves.
*/
public interface LinkerInput {
/**
* Returns the type of the linker input.
*/
ArtifactCategory getArtifactCategory();
/**
* Returns the artifact that is the input of the linker.
*/
Artifact getArtifact();
/**
* Returns the original library to link. If this library is a solib symlink, returns the
* artifact the symlink points to, otherwise, the library itself.
*/
Artifact getOriginalLibraryArtifact();
/**
* Whether the input artifact contains object files or is opaque.
*/
boolean containsObjectFiles();
/**
* Returns whether the input artifact is a fake object file or not.
*/
boolean isFake();
/**
* Return the list of object files included in the input artifact, if there are any. It is
* legal to call this only when {@link #containsObjectFiles()} returns true.
*/
Iterable<Artifact> getObjectFiles();
}