{ "protoc-deps":
  { "imports": {"map_provider": ["./", "../..", "field_map_provider"]}
  , "expression":
    { "type": "let*"
    , "bindings": [["fieldname", "deps"], ["provider", "protoc-deps"]]
    , "body": {"type": "CALL_EXPRESSION", "name": "map_provider"}
    }
  }
, "protoc-compile":
  { "vars":
    [ "CXX"
    , "CXXFLAGS"
    , "ADD_CXXFLAGS"
    , "AR"
    , "ENV"
    , "name"
    , "stage"
    , "service support"
    , "deps-transition"
    , "public-fieldnames"
    , "private-fieldnames"
    ]
  , "imports":
    { "stage": ["", "stage_singleton_field"]
    , "result": ["./", "..", "lib result"]
    , "artifacts": ["./", "../..", "field_artifacts"]
    , "artifacts_list": ["./", "../..", "field_artifacts_list"]
    , "protoc-deps": "protoc-deps"
    }
  , "expression":
    { "type": "let*"
    , "bindings":
      [ ["pure C", false]
      , [ "protoc"
        , { "type": "let*"
          , "bindings":
            [ ["fieldname", "protoc"]
            , ["transition", {"type": "var", "name": "deps-transition"}]
            , ["location", "protoc"]
            ]
          , "body": {"type": "CALL_EXPRESSION", "name": "stage"}
          }
        ]
      , [ "grpc_cpp_plugin"
        , { "type": "if"
          , "cond": {"type": "var", "name": "service support"}
          , "then":
            { "type": "let*"
            , "bindings":
              [ ["fieldname", "grpc_cpp_plugin"]
              , ["transition", {"type": "var", "name": "deps-transition"}]
              , ["location", "grpc_cpp_plugin"]
              ]
            , "body": {"type": "CALL_EXPRESSION", "name": "stage"}
            }
          , "else": {"type": "empty_map"}
          }
        ]
      , ["protoc-deps", {"type": "CALL_EXPRESSION", "name": "protoc-deps"}]
      , [ "proto deps"
        , { "type": "to_subdir"
          , "subdir": "work"
          , "$1":
            { "type": "let*"
            , "bindings": [["fieldname", "well_known_protos"]]
            , "body": {"type": "CALL_EXPRESSION", "name": "artifacts"}
            }
          }
        ]
      , [ "proto srcs"
        , { "type": "disjoint_map_union"
          , "msg": "Sources may not conflict"
          , "$1":
            { "type": "let*"
            , "bindings": [["fieldname", "srcs"]]
            , "body": {"type": "CALL_EXPRESSION", "name": "artifacts_list"}
            }
          }
        ]
      , [ "all proto srcs"
        , { "type": "disjoint_map_union"
          , "msg": "Conflict with proto files of dependencies"
          , "$1":
            [ {"type": "var", "name": "protoc-deps"}
            , {"type": "var", "name": "proto srcs"}
            ]
          }
        ]
      , [ "staged srcs"
        , { "type": "to_subdir"
          , "subdir": "work"
          , "$1": {"type": "var", "name": "proto srcs"}
          }
        ]
      , [ "staged all proto srcs"
        , { "type": "to_subdir"
          , "subdir": "work"
          , "$1": {"type": "var", "name": "all proto srcs"}
          }
        ]
      , [ "outs"
        , { "type": "++"
          , "$1":
            { "type": "foreach"
            , "var": "f"
            , "range":
              {"type": "keys", "$1": {"type": "var", "name": "staged srcs"}}
            , "body":
              { "type": "++"
              , "$1":
                [ [ { "type": "change_ending"
                    , "$1": {"type": "var", "name": "f"}
                    , "ending": ".pb.h"
                    }
                  , { "type": "change_ending"
                    , "$1": {"type": "var", "name": "f"}
                    , "ending": ".pb.cc"
                    }
                  ]
                , { "type": "if"
                  , "cond": {"type": "var", "name": "service support"}
                  , "then":
                    [ { "type": "change_ending"
                      , "$1": {"type": "var", "name": "f"}
                      , "ending": ".grpc.pb.h"
                      }
                    , { "type": "change_ending"
                      , "$1": {"type": "var", "name": "f"}
                      , "ending": ".grpc.pb.cc"
                      }
                    ]
                  , "else": []
                  }
                ]
              }
            }
          }
        ]
      , [ "cmd"
        , { "type": "++"
          , "$1":
            [ ["./protoc", "--proto_path=work", "--cpp_out=work"]
            , { "type": "if"
              , "cond": {"type": "var", "name": "service support"}
              , "then":
                [ "--grpc_out=work"
                , "--plugin=protoc-gen-grpc=./grpc_cpp_plugin"
                ]
              , "else": []
              }
            , {"type": "keys", "$1": {"type": "var", "name": "staged srcs"}}
            ]
          }
        ]
      , [ "generated"
        , { "type": "ACTION"
          , "inputs":
            { "type": "map_union"
            , "$1":
              [ {"type": "var", "name": "staged all proto srcs"}
              , {"type": "var", "name": "protoc"}
              , {"type": "var", "name": "grpc_cpp_plugin"}
              , {"type": "var", "name": "proto deps"}
              ]
            }
          , "outs": {"type": "var", "name": "outs"}
          , "cmd": {"type": "var", "name": "cmd"}
          }
        ]
      , [ "srcs"
        , { "type": "map_union"
          , "$1":
            { "type": "foreach"
            , "var": "name"
            , "range":
              {"type": "keys", "$1": {"type": "var", "name": "proto srcs"}}
            , "body":
              { "type": "map_union"
              , "$1":
                [ { "type": "singleton_map"
                  , "key":
                    { "type": "change_ending"
                    , "$1": {"type": "var", "name": "name"}
                    , "ending": ".pb.cc"
                    }
                  , "value":
                    { "type": "lookup"
                    , "map": {"type": "var", "name": "generated"}
                    , "key":
                      { "type": "join"
                      , "$1":
                        [ "work/"
                        , { "type": "change_ending"
                          , "$1": {"type": "var", "name": "name"}
                          , "ending": ".pb.cc"
                          }
                        ]
                      }
                    }
                  }
                , { "type": "if"
                  , "cond": {"type": "var", "name": "service support"}
                  , "then":
                    { "type": "singleton_map"
                    , "key":
                      { "type": "change_ending"
                      , "$1": {"type": "var", "name": "name"}
                      , "ending": ".grpc.pb.cc"
                      }
                    , "value":
                      { "type": "lookup"
                      , "map": {"type": "var", "name": "generated"}
                      , "key":
                        { "type": "join"
                        , "$1":
                          [ "work/"
                          , { "type": "change_ending"
                            , "$1": {"type": "var", "name": "name"}
                            , "ending": ".grpc.pb.cc"
                            }
                          ]
                        }
                      }
                    }
                  , "else": {"type": "empty_map"}
                  }
                ]
              }
            }
          }
        ]
      , [ "hdrs"
        , { "type": "map_union"
          , "$1":
            { "type": "foreach"
            , "var": "name"
            , "range":
              {"type": "keys", "$1": {"type": "var", "name": "proto srcs"}}
            , "body":
              { "type": "map_union"
              , "$1":
                [ { "type": "singleton_map"
                  , "key":
                    { "type": "change_ending"
                    , "$1": {"type": "var", "name": "name"}
                    , "ending": ".pb.h"
                    }
                  , "value":
                    { "type": "lookup"
                    , "map": {"type": "var", "name": "generated"}
                    , "key":
                      { "type": "join"
                      , "$1":
                        [ "work/"
                        , { "type": "change_ending"
                          , "$1": {"type": "var", "name": "name"}
                          , "ending": ".pb.h"
                          }
                        ]
                      }
                    }
                  }
                , { "type": "if"
                  , "cond": {"type": "var", "name": "service support"}
                  , "then":
                    { "type": "singleton_map"
                    , "key":
                      { "type": "change_ending"
                      , "$1": {"type": "var", "name": "name"}
                      , "ending": ".grpc.pb.h"
                      }
                    , "value":
                      { "type": "lookup"
                      , "map": {"type": "var", "name": "generated"}
                      , "key":
                        { "type": "join"
                        , "$1":
                          [ "work/"
                          , { "type": "change_ending"
                            , "$1": {"type": "var", "name": "name"}
                            , "ending": ".grpc.pb.h"
                            }
                          ]
                        }
                      }
                    }
                  , "else": {"type": "empty_map"}
                  }
                ]
              }
            }
          }
        ]
      , ["private-hdrs", {"type": "empty_map"}]
      , [ "extra-provides"
        , { "type": "singleton_map"
          , "key": "protoc-deps"
          , "value": {"type": "var", "name": "all proto srcs"}
          }
        ]
      , ["cflags", []]
      , ["private-cflags", ["-Wno-sign-conversion", "-Wno-unused-function"]]
      , ["private-ldflags", []]
      ]
    , "body": {"type": "CALL_EXPRESSION", "name": "result"}
    }
  }
}