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Error since avro4s 1.9.0

See original GitHub issue

The following case happens in latest release only: v0.13.5.

TestProtocol.scala source code:

package mytest.domain

import freestyle.rpc.protocol.message

@message final case class ResponseValue(str: String = "ERROR")
@message final case class TestRequest(names: List[String])
@message final case class TestResponse(value: ResponseValue)

TestService.scala source code:

package mytest

import mytest.domain.{TestRequest, TestResponse}
import freestyle.rpc.protocol._

@service trait TestService[F[_]] {

  @rpc(AvroWithSchema)
  def testMethod(request: TestRequest): F[TestResponse]

}

When trying to compile it, the following error occurs:

[error] <macro>:6:129: could not find implicit value for parameter e: io.grpc.MethodDescriptor.Marshaller[mytest.domain.TestResponse]
[error]       _root_.io.grpc.MethodDescriptor.newBuilder(implicitly[_root_.io.grpc.MethodDescriptor.Marshaller[TestRequest]], implicitly[_root_.io.grpc.MethodDescriptor.Marshaller[TestResponse]]).setType(_root_.io.grpc.MethodDescriptor.MethodType.UNARY).setFullMethodName(_root_.io.grpc.MethodDescriptor.generateFullMethodName("TestService", "testMethod")).build()
[error]                                                                                                                                 ^
[error] <macro>:6:129: not enough arguments for method implicitly: (implicit e: io.grpc.MethodDescriptor.Marshaller[mytest.domain.TestResponse])io.grpc.MethodDescriptor.Marshaller[mytest.domain.TestResponse].
[error] Unspecified value parameter e.
[error]       _root_.io.grpc.MethodDescriptor.newBuilder(implicitly[_root_.io.grpc.MethodDescriptor.Marshaller[TestRequest]], implicitly[_root_.io.grpc.MethodDescriptor.Marshaller[TestResponse]]).setType(_root_.io.grpc.MethodDescriptor.MethodType.UNARY).setFullMethodName(_root_.io.grpc.MethodDescriptor.generateFullMethodName("TestService", "testMethod")).build()
[error]                                                                                                                                 ^
[error] two errors found
[error] (server / Test / compileIncremental) Compilation failed
[error] Total time: 39 s, completed Jun 1, 2018 2:35:08 PM

But it works if:

The default value is removed from ResponseValue.
Instead of importing the domain using import mytest.domain.{TestRequest, TestResponse}, using import mytest.domain._.

Issue Analytics

State:
Created 5 years ago
Comments:7 (7 by maintainers)

Top GitHub Comments

1reaction

fedefernandezcommented, Nov 22, 2018

Let me verify this, thanks for the heads up

0reactions

juanpedromorenocommented, Nov 22, 2018

Thanks @fedefernandez for confirming! 🎉

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