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// 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.analysis.skylark;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec;
import com.google.devtools.build.lib.skylarkinterface.SkylarkCallable;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModule;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModuleCategory;
import com.google.devtools.build.lib.syntax.EvalException;
import com.google.devtools.build.lib.syntax.EvalUtils;
import com.google.devtools.build.lib.util.FileType;
import com.google.devtools.build.lib.util.FileTypeSet;
import java.util.List;
/** A wrapper class for FileType and FileTypeSet functionality in Skylark. */
@SkylarkModule(
name = "FileType",
category = SkylarkModuleCategory.NONE,
doc =
"Deprecated. File type for file filtering. Can be used to filter collections of labels "
+ "for certain file types."
)
@AutoCodec
public class SkylarkFileType {
private final FileType fileType;
@AutoCodec.VisibleForSerialization
SkylarkFileType(FileType fileType) {
this.fileType = fileType;
}
public static SkylarkFileType of(List<String> extensions) {
return new SkylarkFileType(FileType.of(extensions));
}
public FileTypeSet getFileTypeSet() {
return FileTypeSet.of(fileType);
}
@SkylarkCallable(doc =
"Returns a list created from the elements of the parameter containing all the "
+ "<a href=\"File.html\"><code>File</code></a>s that match the FileType. The parameter "
+ "must be a <a href=\"depset.html\"><code>depset</code></a> or a "
+ "<a href=\"list.html\"><code>list</code></a>.")
// toIterablesStrict() will ensure the parameter is a SkylarkNestedSet or a java Iterable
// (including SkylarkList). If it fails, the error location information will be inserted by the
// Skylark interface framework. If there's a dynamic type error on a non-Artifact element, the
// error will also be handled by the Skylark interface framework.
@SuppressWarnings("unchecked")
public ImmutableList<Artifact> filter(Object filesUnchecked) throws EvalException {
return ImmutableList.copyOf(
FileType.filter(
(Iterable<Artifact>) EvalUtils.toIterableStrict(filesUnchecked, null, null), fileType));
}
@VisibleForTesting
public Object getExtensions() {
return fileType.getExtensions();
}
@Override
public int hashCode() {
return fileType.hashCode();
}
@Override
public boolean equals(Object other) {
return other == this
|| (other instanceof SkylarkFileType
&& this.fileType.equals(((SkylarkFileType) other).fileType));
}
@Override
public String toString() {
return fileType.toString();
}
}
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