Fix ParameterlessLayer conformance. (#1035)

dan-zheng · web-flow · commit feb9d9754260 · 2020-07-02T13:12:47.000-07:00
Follow-up to #1034.
diff --git a/Tests/TensorFlowTests/LayerTests.swift b/Tests/TensorFlowTests/LayerTests.swift
@@ -17,10 +17,10 @@ import XCTest
 @testable import TensorFlow
 
 fileprivate struct Sigmoid<Scalar: TensorFlowFloatingPoint>: ParameterlessLayer {
-  public init() {}
+  typealias TangentVector = EmptyTangentVector
 
   @differentiable
-  public func callAsFunction(_ input: Tensor<Scalar>) -> Tensor<Scalar> {
+  func callAsFunction(_ input: Tensor<Scalar>) -> Tensor<Scalar> {
     sigmoid(input)
   }
 }

Original file line number	Diff line number	Diff line change
`@@ -17,10 +17,10 @@ import XCTest`
`17`	`17`	`@testable import TensorFlow`
`18`	`18`
`19`	`19`	`fileprivate struct Sigmoid<Scalar: TensorFlowFloatingPoint>: ParameterlessLayer {`
`20`		`- public init() {}`
	`20`	`+ typealias TangentVector = EmptyTangentVector`
`21`	`21`
`22`	`22`	`@differentiable`
`23`		`- public func callAsFunction(_ input: Tensor<Scalar>) -> Tensor<Scalar> {`
	`23`	`+ func callAsFunction(_ input: Tensor<Scalar>) -> Tensor<Scalar> {`
`24`	`24`	`sigmoid(input)`
`25`	`25`	`}`
`26`	`26`	`}`