xref: /aosp_15_r20/external/bazelbuild-kotlin-rules/kotlin/jvm/traverse_exports/java_plugin.bzl (revision 3a22c0a33dd99bcca39a024d43e6fbcc55c2806e)
1# Copyright 2022 Google LLC. All rights reserved.
2#
3# Licensed under the Apache License, Version 2.0 (the License);
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#     http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15"""Utilities related to java_plugin and JavaPluginInfo.
16
17kt_codegen_plugin is using this visitor to extract java_plugin information.
18Due to cross plugin type processing, the plugin info search processor differs
19from the way that java targets handles plugins.
20"""
21
22load("//:visibility.bzl", "RULES_KOTLIN")
23
24visibility(RULES_KOTLIN)
25
26def _get_java_plugins(_target, ctx_rule):
27    return [
28        t[JavaPluginInfo].plugins
29        for t in getattr(ctx_rule.attr, "exported_plugins", [])
30        if JavaPluginInfo in t
31    ]
32
33java_plugin_visitor = struct(
34    name = "java_plugins",
35    visit_target = _get_java_plugins,
36    filter_edge = None,
37    finish_expansion = None,
38    process_unvisited_target = None,
39)
40