Simplify naming of code gen types (#2116)

Motivation:

A number of types are nested within 'CodeGenerationRequest' which make
them verbose to type out and a bit of a pain to work with.

Modification:

Remove the nesting of types.

Result:

Easier types to work with.

Author: glbrntt

Sources/GRPCCodeGen/CodeGenerationRequest.swift

@@ -105,7 +105,7 @@ struct ClientCodeTranslator: SpecializedTranslator {
 
 extension ClientCodeTranslator {
   private func makeClientProtocol(
-    for service: CodeGenerationRequest.ServiceDescriptor,
+    for service: ServiceDescriptor,
     in codeGenerationRequest: CodeGenerationRequest
   ) -> Declaration {
     let methods = service.methods.map {
@@ -130,7 +130,7 @@ extension ClientCodeTranslator {
   }
 
   private func makeDefaultImplementation(
-    for service: CodeGenerationRequest.ServiceDescriptor,
+    for service: ServiceDescriptor,
     in codeGenerationRequest: CodeGenerationRequest
   ) -> Declaration {
     let methods = service.methods.map {
@@ -156,7 +156,7 @@ extension ClientCodeTranslator {
   }
 
   private func makeSugaredAPI(
-    forService service: CodeGenerationRequest.ServiceDescriptor,
+    forService service: ServiceDescriptor,
     request: CodeGenerationRequest
   ) -> Declaration {
     let sugaredAPIExtension = Declaration.extension(
@@ -175,7 +175,7 @@ extension ClientCodeTranslator {
   }
 
   private func makeSugaredMethodDeclaration(
-    method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor,
+    method: MethodDescriptor,
     accessModifier: AccessModifier?
   ) -> Declaration {
     let signature = FunctionSignatureDescription(
@@ -205,7 +205,7 @@ extension ClientCodeTranslator {
   }
 
   private func makeParametersForSugaredMethodDeclaration(
-    method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor
+    method: MethodDescriptor
   ) -> [ParameterDescription] {
     var parameters = [ParameterDescription]()
 
@@ -295,7 +295,7 @@ extension ClientCodeTranslator {
   }
 
   private func makeFunctionBodyForSugaredMethodDeclaration(
-    method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor
+    method: MethodDescriptor
   ) -> [CodeBlock] {
     // Produces the following:
     //
@@ -375,8 +375,8 @@ extension ClientCodeTranslator {
   }
 
   private func makeClientProtocolMethod(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor,
-    in service: CodeGenerationRequest.ServiceDescriptor,
+    for method: MethodDescriptor,
+    in service: ServiceDescriptor,
     from codeGenerationRequest: CodeGenerationRequest,
     includeBody: Bool,
     accessModifier: AccessModifier? = nil,
@@ -421,8 +421,8 @@ extension ClientCodeTranslator {
   }
 
   private func makeClientProtocolMethodCall(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor,
-    in service: CodeGenerationRequest.ServiceDescriptor,
+    for method: MethodDescriptor,
+    in service: ServiceDescriptor,
     from codeGenerationRequest: CodeGenerationRequest
   ) -> [CodeBlock] {
     let functionCall = Expression.functionCall(
@@ -455,8 +455,8 @@ extension ClientCodeTranslator {
   }
 
   private func makeParameters(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor,
-    in service: CodeGenerationRequest.ServiceDescriptor,
+    for method: MethodDescriptor,
+    in service: ServiceDescriptor,
     from codeGenerationRequest: CodeGenerationRequest,
     includeSerializationParameters: Bool,
     includeDefaultCallOptions: Bool,
@@ -487,8 +487,8 @@ extension ClientCodeTranslator {
     return parameters
   }
   private func clientRequestParameter(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor,
-    in service: CodeGenerationRequest.ServiceDescriptor
+    for method: MethodDescriptor,
+    in service: ServiceDescriptor
   ) -> ParameterDescription {
     let requestType = method.isInputStreaming ? "Streaming" : ""
     let clientRequestType = ExistingTypeDescription.member([
@@ -505,8 +505,8 @@ extension ClientCodeTranslator {
   }
 
   private func serializerParameter(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor,
-    in service: CodeGenerationRequest.ServiceDescriptor
+    for method: MethodDescriptor,
+    in service: ServiceDescriptor
   ) -> ParameterDescription {
     return ParameterDescription(
       label: "serializer",
@@ -520,8 +520,8 @@ extension ClientCodeTranslator {
   }
 
   private func deserializerParameter(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor,
-    in service: CodeGenerationRequest.ServiceDescriptor
+    for method: MethodDescriptor,
+    in service: ServiceDescriptor
   ) -> ParameterDescription {
     return ParameterDescription(
       label: "deserializer",
@@ -535,8 +535,8 @@ extension ClientCodeTranslator {
   }
 
   private func bodyParameter(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor,
-    in service: CodeGenerationRequest.ServiceDescriptor,
+    for method: MethodDescriptor,
+    in service: ServiceDescriptor,
     includeDefaultResponseHandler: Bool
   ) -> ParameterDescription {
     let clientStreaming = method.isOutputStreaming ? "Streaming" : ""
@@ -571,7 +571,7 @@ extension ClientCodeTranslator {
   }
 
   private func makeClientStruct(
-    for service: CodeGenerationRequest.ServiceDescriptor,
+    for service: ServiceDescriptor,
     in codeGenerationRequest: CodeGenerationRequest
   ) -> Declaration {
     let clientProperty = Declaration.variable(
@@ -637,8 +637,8 @@ extension ClientCodeTranslator {
   }
 
   private func makeClientMethod(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor,
-    in service: CodeGenerationRequest.ServiceDescriptor,
+    for method: MethodDescriptor,
+    in service: ServiceDescriptor,
     from codeGenerationRequest: CodeGenerationRequest
   ) -> Declaration {
     let parameters = self.makeParameters(

Sources/GRPCCodeGen/Internal/Translator/ClientCodeTranslator.swift

@@ -62,7 +62,7 @@ struct IDLToStructuredSwiftTranslator: Translator {
   }
 
   private func makeImports(
-    dependencies: [CodeGenerationRequest.Dependency],
+    dependencies: [Dependency],
     accessLevel: SourceGenerator.Config.AccessLevel,
     accessLevelOnImports: Bool
   ) throws -> [ImportDescription] {
@@ -98,7 +98,7 @@ extension AccessModifier {
 
 extension IDLToStructuredSwiftTranslator {
   private func translateImport(
-    dependency: CodeGenerationRequest.Dependency,
+    dependency: Dependency,
     accessLevelOnImports: Bool
   ) throws -> ImportDescription {
     var importDescription = ImportDescription(
@@ -146,7 +146,7 @@ extension IDLToStructuredSwiftTranslator {
 
   // Verify service enum names are unique.
   private func checkServiceEnumNamesAreUnique(
-    for servicesByGeneratedEnumName: [String: [CodeGenerationRequest.ServiceDescriptor]]
+    for servicesByGeneratedEnumName: [String: [ServiceDescriptor]]
   ) throws {
     for (generatedEnumName, services) in servicesByGeneratedEnumName {
       if services.count > 1 {
@@ -163,7 +163,7 @@ extension IDLToStructuredSwiftTranslator {
 
   // Verify method names are unique within a service.
   private func checkMethodNamesAreUnique(
-    in service: CodeGenerationRequest.ServiceDescriptor
+    in service: ServiceDescriptor
   ) throws {
     // Check that the method descriptors are unique, by checking that the base names
     // of the methods of a specific service are unique.
@@ -206,7 +206,7 @@ extension IDLToStructuredSwiftTranslator {
   }
 
   private func checkServiceDescriptorsAreUnique(
-    _ services: [CodeGenerationRequest.ServiceDescriptor]
+    _ services: [ServiceDescriptor]
   ) throws {
     var descriptors: Set<String> = []
     for service in services {
@@ -227,7 +227,7 @@ extension IDLToStructuredSwiftTranslator {
   }
 }
 
-extension CodeGenerationRequest.ServiceDescriptor {
+extension ServiceDescriptor {
   var namespacedGeneratedName: String {
     if self.namespace.generatedUpperCase.isEmpty {
       return self.name.generatedUpperCase

Sources/GRPCCodeGen/Internal/Translator/IDLToStructuredSwiftTranslator.swift

@@ -107,7 +107,7 @@ struct ServerCodeTranslator: SpecializedTranslator {
 
 extension ServerCodeTranslator {
   private func makeStreamingProtocol(
-    for service: CodeGenerationRequest.ServiceDescriptor
+    for service: ServiceDescriptor
   ) -> Declaration {
     let methods = service.methods.compactMap {
       Declaration.commentable(
@@ -136,8 +136,8 @@ extension ServerCodeTranslator {
   }
 
   private func makeStreamingMethodSignature(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor,
-    in service: CodeGenerationRequest.ServiceDescriptor,
+    for method: MethodDescriptor,
+    in service: ServiceDescriptor,
     accessModifier: AccessModifier? = nil
   ) -> FunctionSignatureDescription {
     return FunctionSignatureDescription(
@@ -164,7 +164,7 @@ extension ServerCodeTranslator {
   }
 
   private func makeConformanceToRPCServiceExtension(
-    for service: CodeGenerationRequest.ServiceDescriptor,
+    for service: ServiceDescriptor,
     in codeGenerationRequest: CodeGenerationRequest
   ) -> Declaration {
     let streamingProtocol = self.protocolNameTypealias(service: service, streaming: true)
@@ -179,7 +179,7 @@ extension ServerCodeTranslator {
   }
 
   private func makeRegisterRPCsMethod(
-    for service: CodeGenerationRequest.ServiceDescriptor,
+    for service: ServiceDescriptor,
     in codeGenerationRequest: CodeGenerationRequest
   ) -> Declaration {
     let registerRPCsSignature = FunctionSignatureDescription(
@@ -202,7 +202,7 @@ extension ServerCodeTranslator {
   }
 
   private func makeRegisterRPCsMethodBody(
-    for service: CodeGenerationRequest.ServiceDescriptor,
+    for service: ServiceDescriptor,
     in codeGenerationRequest: CodeGenerationRequest
   ) -> [CodeBlock] {
     let registerHandlerCalls = service.methods.compactMap {
@@ -224,8 +224,8 @@ extension ServerCodeTranslator {
   }
 
   private func makeArgumentsForRegisterHandler(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor,
-    in service: CodeGenerationRequest.ServiceDescriptor,
+    for method: MethodDescriptor,
+    in service: ServiceDescriptor,
     from codeGenerationRequest: CodeGenerationRequest
   ) -> [FunctionArgumentDescription] {
     var arguments = [FunctionArgumentDescription]()
@@ -284,7 +284,7 @@ extension ServerCodeTranslator {
   }
 
   private func makeServiceProtocol(
-    for service: CodeGenerationRequest.ServiceDescriptor
+    for service: ServiceDescriptor
   ) -> Declaration {
     let methods = service.methods.compactMap {
       self.makeServiceProtocolMethod(for: $0, in: service)
@@ -309,8 +309,8 @@ extension ServerCodeTranslator {
   }
 
   private func makeServiceProtocolMethod(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor,
-    in service: CodeGenerationRequest.ServiceDescriptor,
+    for method: MethodDescriptor,
+    in service: ServiceDescriptor,
     accessModifier: AccessModifier? = nil
   ) -> Declaration {
     let inputStreaming = method.isInputStreaming ? "Streaming" : ""
@@ -346,7 +346,7 @@ extension ServerCodeTranslator {
   }
 
   private func makeExtensionServiceProtocol(
-    for service: CodeGenerationRequest.ServiceDescriptor
+    for service: ServiceDescriptor
   ) -> Declaration {
     let methods = service.methods.compactMap {
       self.makeServiceProtocolExtensionMethod(for: $0, in: service)
@@ -363,8 +363,8 @@ extension ServerCodeTranslator {
   }
 
   private func makeServiceProtocolExtensionMethod(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor,
-    in service: CodeGenerationRequest.ServiceDescriptor
+    for method: MethodDescriptor,
+    in service: ServiceDescriptor
   ) -> Declaration? {
     // The method has the same definition in StreamingServiceProtocol and ServiceProtocol.
     if method.isInputStreaming && method.isOutputStreaming {
@@ -385,7 +385,7 @@ extension ServerCodeTranslator {
   }
 
   private func makeResponse(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor
+    for method: MethodDescriptor
   ) -> Declaration {
     let serverRequest: Expression
     if !method.isInputStreaming {
@@ -422,7 +422,7 @@ extension ServerCodeTranslator {
   }
 
   private func makeReturnStatement(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor
+    for method: MethodDescriptor
   ) -> Expression {
     let returnValue: Expression
     // Transforming the unary response into a streaming one.
@@ -447,16 +447,16 @@ extension ServerCodeTranslator {
 
   /// Generates the fully qualified name of a method descriptor.
   private func methodDescriptorPath(
-    for method: CodeGenerationRequest.ServiceDescriptor.MethodDescriptor,
-    service: CodeGenerationRequest.ServiceDescriptor
+    for method: MethodDescriptor,
+    service: ServiceDescriptor
   ) -> String {
     return
       "\(service.namespacedGeneratedName).Method.\(method.name.generatedUpperCase).descriptor"
   }
 
   /// Generates the fully qualified name of the type alias for a service protocol.
   internal func protocolNameTypealias(
-    service: CodeGenerationRequest.ServiceDescriptor,
+    service: ServiceDescriptor,
     streaming: Bool
   ) -> String {
     if streaming {
@@ -467,7 +467,7 @@ extension ServerCodeTranslator {
 
   /// Generates the name of a service protocol.
   internal func protocolName(
-    service: CodeGenerationRequest.ServiceDescriptor,
+    service: ServiceDescriptor,
     streaming: Bool
   ) -> String {
     if streaming {