test/SIL/Parser/protocol_getter.sil

// RUN: %target-swift-frontend %s -emit-silgen | %FileCheck %s

// Verify that SILParser correctly handles witness_method on a getter.
import Swift

protocol TestP : class {
  var count: Int {get}
  func test() -> String!
}

// CHECK-LABEL: sil @test
sil @test : $@convention(method) (TestP) -> () {
bb0(%0 : $TestP):
  %1 = open_existential_ref %0 : $TestP to $@opened("01234567-89ab-cdef-0123-000000000000") TestP
  // CHECK: witness_method $@opened({{.*}}) TestP, #TestP.count!getter : {{.*}}, %{{.*}} : $@opened({{.*}} : $@convention(witness_method: TestP) <τ_0_0 where τ_0_0 : TestP> (τ_0_0) -> Int
  %2 = witness_method $@opened("01234567-89ab-cdef-0123-000000000000") TestP, #TestP.count!getter, %1 : $@opened("01234567-89ab-cdef-0123-000000000000") TestP : $@convention(witness_method: TestP) <T: TestP> (T) -> Int
  %3 = tuple ()
  return %3 : $()
}

// Make sure we can parse "!" as ImplicitlyUnwrappedOptional.
// CHECK-LABEL: sil @top
sil @top : $@convention(thin) (@owned TestP) -> @owned Optional<String> {
bb0(%0 : $TestP):
  strong_retain %0 : $TestP
  %3 = open_existential_ref %0 : $TestP to $@opened("01234567-89ab-cdef-0123-111111111111") TestP
  // CHECK: witness_method $@opened({{.*}}) TestP, #TestP.test!1
  %4 = witness_method $@opened("01234567-89ab-cdef-0123-111111111111") TestP, #TestP.test!1, %3 : $@opened("01234567-89ab-cdef-0123-111111111111") TestP : $@convention(witness_method: TestP) @callee_owned <T: TestP> (@owned T) -> @owned Optional<String>
  %5 = apply %4<@opened("01234567-89ab-cdef-0123-111111111111") TestP>(%3) : $@convention(witness_method: TestP) @callee_owned <T: TestP> (@owned T) -> @owned Optional<String>
  strong_release %0 : $TestP
  return %5 : $Optional<String>
}