| // RUN: %target-swift-frontend -typecheck -verify %s |
| // SWIFT_ENABLE_TENSORFLOW |
| // XFAIL: * |
| |
| // expected-error @+1 {{'@differentiable' attribute used without importing module '_Differentiation'}} |
| let _: @differentiable (Float) -> Float |
| |
| // expected-error @+2 {{'@differentiable' attribute used without importing module '_Differentiation'}} |
| // expected-error @+1 {{'@noDerivative' attribute used without importing module '_Differentiation'}} |
| let _: @differentiable (Float, @noDerivative Float) -> Float |
| |
| // expected-error @+1 {{'@noDerivative' attribute used without importing module '_Differentiation'}} |
| let _: (Float, @noDerivative Float) -> Float |
| |
| // expected-error @+1 {{'@noDerivative' attribute used without importing module '_Differentiation'}} |
| let _: @noDerivative Float |
| |
| func id(_ x: Float) -> Float { |
| return x |
| } |
| // expected-error @+1 {{@derivative attribute used without importing module '_Differentiation'}} |
| @derivative(of: id) |
| func jvpId(x: Float) -> (value: Float, differential: (Float) -> (Float)) { |
| return (x, { $0 }) |
| } |
