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1# Copyright (c) 2009-2024, Google LLC
2# All rights reserved.
3#
4# Use of this source code is governed by a BSD-style
5# license that can be found in the LICENSE file or at
6# https://developers.google.com/open-source/licenses/bsd
7
8load("//bazel/toolchains:proto_lang_toolchain.bzl", "proto_lang_toolchain")
9load(
10    "//upb/bazel:build_defs.bzl",
11    "UPB_DEFAULT_CPPOPTS",
12)
13load(
14    "//upb_generator:bootstrap_compiler.bzl",
15    "bootstrap_cc_binary",
16    "bootstrap_cc_library",
17)
18
19package(default_applicable_licenses = ["//:license"])
20
21licenses(["notice"])
22
23cc_library(
24    name = "names",
25    srcs = ["names.cc"],
26    hdrs = ["names.h"],
27    visibility = ["//src/google/protobuf/compiler/hpb:__pkg__"],
28    deps = [
29        ":names_internal",
30        "@com_google_absl//absl/container:flat_hash_map",
31        "@com_google_absl//absl/strings",
32    ],
33)
34
35cc_library(
36    name = "names_internal",
37    srcs = ["names_internal.cc"],
38    hdrs = ["names_internal.h"],
39    deps = [
40        "//upb_generator/common:names",
41        "@com_google_absl//absl/strings",
42    ],
43)
44
45bootstrap_cc_binary(
46    name = "protoc-gen-upb",
47    bootstrap_deps = [":generator_with_main"],
48    copts = UPB_DEFAULT_CPPOPTS,
49    visibility = [
50        "//editions/codegen_tests:__pkg__",
51        "//net/proto2/contrib/protoc_explorer:__pkg__",
52        "//third_party/prototiller/transformer:__pkg__",
53    ],
54)
55
56# TODO: This wrapper lib is a hack that we need because of how CcInfo works in Bazel 6.
57# In Bazel 7, our cmake dependency scraping works fine with cc_binary.
58bootstrap_cc_library(
59    name = "generator_with_main",
60    srcs = ["generator.cc"],
61    bootstrap_deps = [
62        "//upb_generator:common",
63        "//upb_generator:file_layout",
64        "//upb_generator:plugin",
65        "//upb_generator:plugin_upb_proto",
66        "//upb/reflection:descriptor_upb_proto",
67        "//upb/reflection:reflection",
68    ],
69    copts = UPB_DEFAULT_CPPOPTS,
70    visibility = ["//pkg:__pkg__"],
71    deps = [
72        ":names",
73        ":names_internal",
74        "//upb:base",
75        "//upb:mem",
76        "//upb:mini_table",
77        "//upb:port",
78        "//upb:wire_reader",
79        "//upb_generator/common:names",
80        "//upb_generator/minitable:names",
81        "//upb_generator/minitable:names_internal",
82        "@com_google_absl//absl/base:core_headers",
83        "@com_google_absl//absl/container:flat_hash_map",
84        "@com_google_absl//absl/container:flat_hash_set",
85        "@com_google_absl//absl/log:absl_check",
86        "@com_google_absl//absl/log:absl_log",
87        "@com_google_absl//absl/strings",
88    ],
89)
90
91proto_lang_toolchain(
92    name = "toolchain",
93    command_line = "--upb_out=$(OUT)",
94    output_files = "multiple",
95    plugin = ":protoc-gen-upb_stage1",
96    plugin_format_flag = "--plugin=protoc-gen-upb=%s",
97    progress_message = "Generating upb protos",
98    runtime = "//upb:generated_code_support__only_for_generated_code_do_not_use__i_give_permission_to_break_me",
99    # TODO: Restrict to "//bazel:__pkg__" once we are on Bazel >=6.5.
100    visibility = ["//visibility:public"],
101)
102