compilation is failing on importing internal proto files

[3olkin]

Bug Report

Version

└──tonic v0.5.2
└── tonic-build v0.5.2

Platform

Linux 5.11.0-34-generic #36~20.04.1-Ubuntu SMP Fri Aug 27 08:06:32 UTC 2021 x86_64

Description

I tried to import local proto, but cargo check failed.

Compiler output:

error[E0433]: failed to resolve: there are too many leading `super` keywords
  --> /home/z4rx/Code/projects/tonic_issue/target/debug/build/tonic_issue-6b3a7d73b6aa2eac/out/service.rs:69:44
   |
69 |         ) -> Result<tonic::Response<super::super::domain::User>, tonic::Status> {
   |                                            ^^^^^ there are too many leading `super` keywords

error[E0433]: failed to resolve: there are too many leading `super` keywords
  --> /home/z4rx/Code/projects/tonic_issue/target/debug/build/tonic_issue-6b3a7d73b6aa2eac/out/service.rs:92:44
   |
92 |         ) -> Result<tonic::Response<super::super::domain::User>, tonic::Status>;
   |                                            ^^^^^ there are too many leading `super` keywords

error[E0433]: failed to resolve: there are too many leading `super` keywords
   --> /home/z4rx/Code/projects/tonic_issue/target/debug/build/tonic_issue-6b3a7d73b6aa2eac/out/service.rs:137:48
    |
137 |                         type Response = super::super::domain::User;
    |                                                ^^^^^ there are too many leading `super` keywords

error[E0698]: type inside `async fn` body must be known in this context
  --> /home/z4rx/Code/projects/tonic_issue/target/debug/build/tonic_issue-6b3a7d73b6aa2eac/out/service.rs:76:25
   |
76 |             let codec = tonic::codec::ProstCodec::default();
   |                         ^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type for type parameter `U`
   |
note: the type is part of the `async fn` body because of this `await`
  --> /home/z4rx/Code/projects/tonic_issue/target/debug/build/tonic_issue-6b3a7d73b6aa2eac/out/service.rs:78:13
   |
78 |             self.inner.unary(request.into_request(), path, codec).await
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Repository for reproduce this error: https://github.com/Z4RX/tonic_issue

[DerekStrickland]

I think you want include_file. Check out this PR for an example.