Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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87 lines
2.9 KiB
87 lines
2.9 KiB
1 year ago
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"""upb_c_proto_library() exposes upb's generated C API for protobuf (foo.upb.h)"""
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load("//upb/bazel:upb_proto_library_internal/aspect.bzl", "upb_proto_aspect_impl")
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load("//upb/bazel:upb_proto_library_internal/cc_library_func.bzl", "upb_use_cpp_toolchain")
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load("//upb/bazel:upb_proto_library_internal/rule.bzl", "upb_proto_rule_impl")
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UpbWrappedCcInfo = provider(
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"Provider for cc_info for protos",
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fields = ["cc_info", "cc_info_with_thunks"],
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)
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_UpbWrappedGeneratedSrcsInfo = provider(
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"Provider for generated sources",
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fields = ["srcs"],
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)
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def _upb_c_proto_library_aspect_impl(target, ctx):
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return upb_proto_aspect_impl(
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target = target,
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ctx = ctx,
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generator = "upb",
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cc_provider = UpbWrappedCcInfo,
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dep_cc_provider = None,
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file_provider = _UpbWrappedGeneratedSrcsInfo,
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)
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def _get_upb_c_proto_library_aspect_provides():
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provides = [
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UpbWrappedCcInfo,
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_UpbWrappedGeneratedSrcsInfo,
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]
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if hasattr(cc_common, "CcSharedLibraryHintInfo"):
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provides.append(cc_common.CcSharedLibraryHintInfo)
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elif hasattr(cc_common, "CcSharedLibraryHintInfo_6_X_getter_do_not_use"):
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# This branch can be deleted once 6.X is not supported by upb rules
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provides.append(cc_common.CcSharedLibraryHintInfo_6_X_getter_do_not_use)
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return provides
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upb_c_proto_library_aspect = aspect(
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attrs = {
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"_copts": attr.label(
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default = "//upb:upb_proto_library_copts__for_generated_code_only_do_not_use",
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),
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"_gen_upb": attr.label(
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executable = True,
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cfg = "exec",
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default = "//upb/upbc:protoc-gen-upb_stage1",
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),
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"_protoc": attr.label(
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executable = True,
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cfg = "exec",
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default = "//:protoc",
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),
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"_cc_toolchain": attr.label(
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default = "@bazel_tools//tools/cpp:current_cc_toolchain",
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),
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"_upb": attr.label_list(default = [
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"//upb:generated_code_support__only_for_generated_code_do_not_use__i_give_permission_to_break_me",
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]),
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"_fasttable_enabled": attr.label(default = "//upb:fasttable_enabled"),
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},
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implementation = _upb_c_proto_library_aspect_impl,
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provides = _get_upb_c_proto_library_aspect_provides(),
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attr_aspects = ["deps"],
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fragments = ["cpp"],
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toolchains = upb_use_cpp_toolchain(),
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incompatible_use_toolchain_transition = True,
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)
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def _upb_c_proto_library_rule_impl(ctx):
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return upb_proto_rule_impl(ctx, UpbWrappedCcInfo, _UpbWrappedGeneratedSrcsInfo)
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upb_c_proto_library = rule(
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output_to_genfiles = True,
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implementation = _upb_c_proto_library_rule_impl,
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attrs = {
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"deps": attr.label_list(
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aspects = [upb_c_proto_library_aspect],
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allow_rules = ["proto_library"],
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providers = [ProtoInfo],
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),
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},
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provides = [CcInfo],
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)
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