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"""upb_c_proto_reflection_library() exposes upb reflection for protobuf (foo.upbdefs.h)"""
load("//bazel:upb_minitable_proto_library.bzl", "UpbMinitableCcInfo", "upb_minitable_proto_library_aspect")
load("//bazel/common:proto_common.bzl", "proto_common")
load("//bazel/common:proto_info.bzl", "ProtoInfo")
load("//bazel/private:upb_proto_library_internal/aspect.bzl", "upb_proto_aspect_impl")
load("//bazel/private:upb_proto_library_internal/cc_library_func.bzl", "upb_use_cpp_toolchain")
load("//bazel/private:upb_proto_library_internal/rule.bzl", "upb_proto_rule_impl")
_UpbDefsWrappedCcInfo = provider("Provider for cc_info for protos", fields = ["cc_info"])
_WrappedDefsGeneratedSrcsInfo = provider(
"Provider for generated reflective sources",
fields = ["srcs"],
)
def _upb_proto_reflection_library_aspect_impl(target, ctx):
return upb_proto_aspect_impl(
target = target,
ctx = ctx,
generator = "upbdefs",
cc_provider = _UpbDefsWrappedCcInfo,
dep_cc_provider = UpbMinitableCcInfo,
file_provider = _WrappedDefsGeneratedSrcsInfo,
provide_cc_shared_library_hints = False,
)
_upb_proto_reflection_library_aspect = aspect(
attrs = {
"_copts": attr.label(
default = "//upb:upb_proto_library_copts__for_generated_code_only_do_not_use",
),
"_upbdefs_toolchain": attr.label(
default = Label("//upb_generator/reflection:toolchain"),
cfg = getattr(proto_common, "proto_lang_toolchain_cfg", "target"),
),
"_cc_toolchain": attr.label(
default = "@bazel_tools//tools/cpp:current_cc_toolchain",
),
},
implementation = _upb_proto_reflection_library_aspect_impl,
requires = [upb_minitable_proto_library_aspect],
required_aspect_providers = [UpbMinitableCcInfo],
provides = [
_UpbDefsWrappedCcInfo,
_WrappedDefsGeneratedSrcsInfo,
],
attr_aspects = ["deps"],
fragments = ["cpp"],
toolchains = upb_use_cpp_toolchain(),
exec_groups = {
"proto_compiler": exec_group(),
},
)
def _upb_proto_reflection_library_rule_impl(ctx):
return upb_proto_rule_impl(ctx, _UpbDefsWrappedCcInfo, _WrappedDefsGeneratedSrcsInfo)
upb_proto_reflection_library = rule(
implementation = _upb_proto_reflection_library_rule_impl,
attrs = {
"deps": attr.label_list(
aspects = [_upb_proto_reflection_library_aspect],
allow_rules = ["proto_library"],
providers = [ProtoInfo],
),
},
provides = [CcInfo],
)
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