| // RUN: %target-swift-frontend -emit-sil -verify %s | %FileCheck %s |
| |
| @discardableResult |
| func rethrower(_ fn: () throws -> Int) rethrows -> Int { |
| return try fn() |
| } |
| func thrower() throws -> Int { return 0 } |
| func nonthrower() -> Int { return 0 } |
| |
| // CHECK-LABEL: sil hidden @_TF8rethrows5test0FzT_T_ : $@convention(thin) () -> @error Error { |
| // CHECK: [[RETHROWER:%.*]] = function_ref @_TF8rethrows9rethrowerFzFzT_SiSi : $@convention(thin) (@owned @callee_owned () -> (Int, @error Error)) -> (Int, @error Error) |
| // CHECK: [[THROWER:%.*]] = function_ref @_TF8rethrows7throwerFzT_Si : $@convention(thin) () -> (Int, @error Error) |
| // CHECK: [[T0:%.*]] = thin_to_thick_function [[THROWER]] |
| // CHECK: try_apply [[RETHROWER]]([[T0]]) : $@convention(thin) (@owned @callee_owned () -> (Int, @error Error)) -> (Int, @error Error), normal [[NORMAL:bb1]], error [[ERROR:bb2]] |
| // CHECK: [[NORMAL]]([[T0:%.*]] : $Int): |
| // CHECK-NEXT: [[T1:%.*]] = tuple () |
| // CHECK-NEXT: return [[T1]] |
| // CHECK: [[ERROR]]([[T0:%.*]] : $Error): |
| // CHECK-NEXT: throw [[T0]] |
| func test0() throws { |
| try rethrower(thrower) |
| } |
| |
| // CHECK-LABEL: sil hidden @_TF8rethrows5test1FzT_T_ : $@convention(thin) () -> @error Error { |
| // CHECK: [[RETHROWER:%.*]] = function_ref @_TF8rethrows9rethrowerFzFzT_SiSi : $@convention(thin) (@owned @callee_owned () -> (Int, @error Error)) -> (Int, @error Error) |
| // CHECK: [[CLOSURE:%.*]] = function_ref @_TFF8rethrows5test1FzT_T_U_FzT_Si : $@convention(thin) () -> (Int, @error Error) |
| // CHECK: [[T0:%.*]] = thin_to_thick_function [[CLOSURE]] |
| // CHECK: try_apply [[RETHROWER]]([[T0]]) : $@convention(thin) (@owned @callee_owned () -> (Int, @error Error)) -> (Int, @error Error), normal [[NORMAL:bb1]], error [[ERROR:bb2]] |
| // CHECK: [[NORMAL]]([[T0:%.*]] : $Int): |
| // CHECK-NEXT: [[T1:%.*]] = tuple () |
| // CHECK-NEXT: return [[T1]] |
| // CHECK: [[ERROR]]([[T0:%.*]] : $Error): |
| // CHECK-NEXT: throw [[T0]] |
| // Closure. |
| // CHECK-LABEL: sil shared @_TFF8rethrows5test1FzT_T_U_FzT_Si : $@convention(thin) () -> (Int, @error Error) { |
| // CHECK: [[RETHROWER:%.*]] = function_ref @_TF8rethrows9rethrowerFzFzT_SiSi : $@convention(thin) (@owned @callee_owned () -> (Int, @error Error)) -> (Int, @error Error) |
| // CHECK: [[THROWER:%.*]] = function_ref @_TF8rethrows7throwerFzT_Si : $@convention(thin) () -> (Int, @error Error) |
| // CHECK: [[T0:%.*]] = thin_to_thick_function [[THROWER]] |
| // CHECK: try_apply [[RETHROWER]]([[T0]]) : $@convention(thin) (@owned @callee_owned () -> (Int, @error Error)) -> (Int, @error Error), normal [[NORMAL:bb1]], error [[ERROR:bb2]] |
| // CHECK: [[NORMAL]]([[T0:%.*]] : $Int): |
| // CHECK-NEXT: return [[T0]] |
| // CHECK: [[ERROR]]([[T0:%.*]] : $Error): |
| // CHECK-NEXT: throw [[T0]] |
| func test1() throws { |
| try rethrower { try rethrower(thrower) } |
| } |
| |
| // CHECK-LABEL: sil hidden @_TF8rethrows5test2FT_T_ : $@convention(thin) () -> () { |
| // CHECK: [[RETHROWER:%.*]] = function_ref @_TF8rethrows9rethrowerFzFzT_SiSi : $@convention(thin) (@owned @callee_owned () -> (Int, @error Error)) -> (Int, @error Error) |
| // CHECK: [[NONTHROWER:%.*]] = function_ref @_TF8rethrows10nonthrowerFT_Si : $@convention(thin) () -> Int |
| // CHECK: [[T0:%.*]] = thin_to_thick_function [[NONTHROWER]] |
| // CHECK: [[T1:%.*]] = convert_function [[T0]] : $@callee_owned () -> Int to $@callee_owned () -> (Int, @error Error) |
| // CHECK: try_apply [[RETHROWER]]([[T1]]) : $@convention(thin) (@owned @callee_owned () -> (Int, @error Error)) -> (Int, @error Error), normal [[NORMAL:bb1]], error [[ERROR:bb2]] |
| // CHECK: [[NORMAL]]([[T0:%.*]] : $Int): |
| // CHECK-NEXT: [[T1:%.*]] = tuple () |
| // CHECK-NEXT: return [[T1]] |
| // CHECK: [[ERROR]]([[T0:%.*]] : $Error): |
| // CHECK-NEXT: unreachable |
| func test2() { |
| rethrower(nonthrower) |
| } |
| |
| // CHECK-LABEL: sil hidden @_TF8rethrows5test3FT_T_ : $@convention(thin) () -> () { |
| // CHECK: [[RETHROWER:%.*]] = function_ref @_TF8rethrows9rethrowerFzFzT_SiSi : $@convention(thin) (@owned @callee_owned () -> (Int, @error Error)) -> (Int, @error Error) |
| // CHECK: [[CLOSURE:%.*]] = function_ref @_TFF8rethrows5test3FT_T_U_FT_Si : $@convention(thin) () -> Int |
| // CHECK: [[T0:%.*]] = thin_to_thick_function [[NONTHROWER]] |
| // CHECK: [[T1:%.*]] = convert_function [[T0]] : $@callee_owned () -> Int to $@callee_owned () -> (Int, @error Error) |
| // CHECK: try_apply [[RETHROWER]]([[T1]]) : $@convention(thin) (@owned @callee_owned () -> (Int, @error Error)) -> (Int, @error Error), normal [[NORMAL:bb1]], error [[ERROR:bb2]] |
| // CHECK: [[NORMAL]]([[T0:%.*]] : $Int): |
| // CHECK-NEXT: [[T1:%.*]] = tuple () |
| // CHECK-NEXT: return [[T1]] |
| // CHECK: [[ERROR]]([[T0:%.*]] : $Error): |
| // CHECK-NEXT: unreachable |
| func test3() { |
| rethrower { rethrower(nonthrower) } |
| } |