syntax = "proto3";

message Int {
  int64 data = 1;
}

message String {
  string data = 1;
}

message Double {
	double data = 1;
}

message PyObj {
  bytes data = 1;
}

// Union of possible object types
message Obj {
  String string_data = 1;
  Int int_data = 2;
  Double double_data = 3;
  PyObj pyobj_data = 4;
}

message List {
  repeated Obj elems = 1;
}

message Value {
  uint64 ref = 1; // for pass by reference
  Obj obj = 2; // for pass by value
}

message Call {
  string name = 1;
  repeated Value arg = 2;
  repeated uint64 result = 3; // object references for result
}

enum DataType {
  INT32 = 0;
  INT64 = 1;
  FLOAT32 = 2;
  FLOAT64 = 3;
}

message Array {
  repeated uint64 shape = 1;
  DataType dtype = 2;
  bytes data = 3;
}