syntax = "proto3";

package ory.keto.opl.v1alpha1;

// The service that checks the syntax of an OPL file.
service SyntaxService {
  // Performs a syntax check request.
  rpc Check(CheckRequest) returns (CheckResponse);
}

message CheckRequest {
  bytes content = 1;
}

message CheckResponse {
  repeated ParseError parse_errors = 1;
}

message ParseError {
  string message = 1;
  SourcePosition start = 2;
  SourcePosition end = 3;
}

message SourcePosition {
  uint32 line = 1;
  uint32 column = 2;
}