syntax = "proto3";

package cel.expr;

import "google/protobuf/any.proto";
import "cel/expr/value.proto";

message EvalState {
  message Result {
    int64 expr = 1;
    int64 value = 2;
  }

  repeated .cel.expr.ExprValue values = 1;
  repeated .cel.expr.EvalState.Result results = 3;
}

message ExprValue {
  oneof kind {
    .cel.expr.Value value = 1;
    .cel.expr.ErrorSet error = 2;
    .cel.expr.UnknownSet unknown = 3;
  }
}

message ErrorSet {
  repeated .cel.expr.Status errors = 1;
}

message Status {
  int32 code = 1;
  string message = 2;
  repeated .google.protobuf.Any details = 3;
}

message UnknownSet {
  repeated int64 exprs = 1;
}