70 lines
2.3 KiB
Python
70 lines
2.3 KiB
Python
"""upb_c_proto_library() exposes upb's generated C API for protobuf (foo.upb.h)"""
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load("//bazel:upb_minitable_proto_library.bzl", "UpbMinitableCcInfo", "upb_minitable_proto_library_aspect")
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load("//bazel/private:upb_proto_library_internal/aspect.bzl", "upb_proto_aspect_impl")
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load("//bazel/private:upb_proto_library_internal/cc_library_func.bzl", "upb_use_cpp_toolchain")
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load("//bazel/private: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 = UpbMinitableCcInfo,
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file_provider = _UpbWrappedGeneratedSrcsInfo,
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provide_cc_shared_library_hints = False,
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)
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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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"_upb_toolchain": attr.label(
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default = Label("//upb_generator:protoc-gen-upb_toolchain"),
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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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},
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implementation = _upb_c_proto_library_aspect_impl,
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requires = [upb_minitable_proto_library_aspect],
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required_aspect_providers = [UpbMinitableCcInfo],
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provides = [
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UpbWrappedCcInfo,
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_UpbWrappedGeneratedSrcsInfo,
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],
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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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exec_groups = {
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"proto_compiler": exec_group(),
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},
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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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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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