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#!/usr/bin/env python3
# Copyright (C) 2020 The Android Open Source Project
#
# 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.
"""Generates stubs for annotations that aren't in the Android source tree."""
import pathlib
import string
import sys
_ANNOTATIONS_CLASSES = ['org.checkerframework.checker.nullness.compatqual.NullableDecl']
_CLASS_TEMPLATE = string.Template("""
package ${package_name};
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Target({
ElementType.ANNOTATION_TYPE,
ElementType.CONSTRUCTOR,
ElementType.FIELD,
ElementType.LOCAL_VARIABLE,
ElementType.METHOD,
ElementType.PACKAGE,
ElementType.PARAMETER,
ElementType.TYPE,
ElementType.TYPE_PARAMETER,
ElementType.TYPE_USE})
@Retention(RetentionPolicy.SOURCE)
public @interface ${class_name} {}
""")
if __name__ == '__main__':
out_dir = pathlib.Path(sys.argv[1])
for c in _ANNOTATIONS_CLASSES:
parts = c.split('.')
src_path = out_dir.joinpath(*parts).with_suffix('.java')
src_path.parent.mkdir(parents=True)
src_path.write_text(
_CLASS_TEMPLATE.substitute(
package_name='.'.join(parts[:-1]), class_name=parts[-1]))
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