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[interop] C++ destination record should be destroyed before being cop… #64397
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| #pragma once | ||
|
|
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| struct InstanceBalanceCounter { | ||
| static inline int &theCounterValue() { | ||
| static int counterValue = 0; | ||
| return counterValue; | ||
| } | ||
| static inline int getCounterValue() { | ||
| return theCounterValue(); | ||
| } | ||
|
|
||
| __attribute__((optnone)) | ||
| InstanceBalanceCounter() { | ||
| ++theCounterValue(); | ||
| } | ||
| __attribute__((optnone)) | ||
| InstanceBalanceCounter(const InstanceBalanceCounter &) { | ||
| ++theCounterValue(); | ||
| } | ||
| __attribute__((optnone)) | ||
| InstanceBalanceCounter(InstanceBalanceCounter &&) { | ||
| ++theCounterValue(); | ||
| } | ||
| __attribute__((optnone)) | ||
| ~InstanceBalanceCounter() { | ||
| --theCounterValue(); | ||
| } | ||
| }; | ||
|
|
||
| __attribute__((optnone)) | ||
| inline void someFunc() {} | ||
|
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| struct NonTrivialCopyAssign { | ||
| __attribute__((optnone)) | ||
| NonTrivialCopyAssign(): copyAssignCounter(0) {} | ||
| __attribute__((optnone)) | ||
| ~NonTrivialCopyAssign() { | ||
| someFunc(); | ||
| } | ||
|
|
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| __attribute__((optnone)) | ||
| NonTrivialCopyAssign &operator =(const NonTrivialCopyAssign &) { | ||
| ++copyAssignCounter; | ||
| return *this; | ||
| } | ||
|
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| int copyAssignCounter; | ||
| InstanceBalanceCounter instanceBalancer; | ||
| }; | ||
|
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| struct NonTrivialMoveAssign { | ||
| __attribute__((optnone)) | ||
| NonTrivialMoveAssign(): moveAssignCounter(0) {} | ||
| __attribute__((optnone)) | ||
| NonTrivialMoveAssign(const NonTrivialMoveAssign &) = default; | ||
| __attribute__((optnone)) | ||
| ~NonTrivialMoveAssign() { | ||
| someFunc(); | ||
| } | ||
|
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| __attribute__((optnone)) | ||
| NonTrivialMoveAssign &operator =(NonTrivialMoveAssign &&) { | ||
| ++moveAssignCounter; | ||
| return *this; | ||
| } | ||
|
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| int moveAssignCounter; | ||
| InstanceBalanceCounter instanceBalancer; | ||
| }; | ||
|
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| struct NonTrivialCopyAndCopyMoveAssign { | ||
| __attribute__((optnone)) | ||
| NonTrivialCopyAndCopyMoveAssign(): assignCounter(0) {} | ||
| __attribute__((optnone)) | ||
| NonTrivialCopyAndCopyMoveAssign(const NonTrivialCopyAndCopyMoveAssign &other) : assignCounter(other.assignCounter), instanceBalancer(other.instanceBalancer) { | ||
| someFunc(); | ||
| } | ||
| __attribute__((optnone)) | ||
| NonTrivialCopyAndCopyMoveAssign( NonTrivialCopyAndCopyMoveAssign &&other) : assignCounter(other.assignCounter), instanceBalancer(other.instanceBalancer) { | ||
| someFunc(); | ||
| } | ||
| __attribute__((optnone)) | ||
| ~NonTrivialCopyAndCopyMoveAssign() { | ||
| someFunc(); | ||
| } | ||
|
|
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| __attribute__((optnone)) | ||
| NonTrivialCopyAndCopyMoveAssign &operator =(const NonTrivialCopyAndCopyMoveAssign &) { | ||
| ++assignCounter; | ||
| return *this; | ||
| } | ||
| __attribute__((optnone)) | ||
| NonTrivialCopyAndCopyMoveAssign &operator =(NonTrivialCopyAndCopyMoveAssign &&) { | ||
| ++assignCounter; | ||
| return *this; | ||
| } | ||
|
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| int assignCounter; | ||
| InstanceBalanceCounter instanceBalancer; | ||
| }; |
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58 changes: 58 additions & 0 deletions
58
test/Interop/Cxx/class/copy-move-assignment-executable.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| // RUN: %target-run-simple-swift(-I %S/Inputs/ -Xfrontend -enable-experimental-cxx-interop) | ||
| // | ||
| // Re-test with optimizations: | ||
| // RUN: %target-run-simple-swift(-I %S/Inputs/ -Xfrontend -enable-experimental-cxx-interop -O) | ||
| // | ||
| // REQUIRES: executable_test | ||
|
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| import StdlibUnittest | ||
| import CopyMoveAssignment | ||
|
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| var CxxCopyMoveAssignTestSuite = TestSuite("CxxCopyMoveAssignTestSuite") | ||
|
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| @inline(never) | ||
| func takeValue<T>(_ x: T) { | ||
| let _ = x | ||
| } | ||
|
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| CxxCopyMoveAssignTestSuite.test("NonTrivialCopyAssign") { | ||
| do { | ||
| var instance = NonTrivialCopyAssign() | ||
| expectEqual(0, instance.copyAssignCounter) | ||
| let instance2 = NonTrivialCopyAssign() | ||
| instance = instance2 | ||
| // `operator=` isn't called. | ||
| expectEqual(0, instance.copyAssignCounter) | ||
| takeValue(instance2) | ||
| } | ||
| // The number of construcors and destructors called for `NonTrivialCopyAssign` must be balanced. | ||
| expectEqual(0, InstanceBalanceCounter.getCounterValue()) | ||
| } | ||
|
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| CxxCopyMoveAssignTestSuite.test("NonTrivialMoveAssign") { | ||
| do { | ||
| var instance = NonTrivialMoveAssign() | ||
| expectEqual(0, instance.moveAssignCounter) | ||
| instance = NonTrivialMoveAssign() | ||
| // `operator=` isn't called. | ||
| expectEqual(0, instance.moveAssignCounter) | ||
| } | ||
| // The number of construcors and destructors called for `NonTrivialCopyAssign` must be balanced. | ||
| expectEqual(0, InstanceBalanceCounter.getCounterValue()) | ||
| } | ||
|
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| CxxCopyMoveAssignTestSuite.test("NonTrivialCopyAndCopyMoveAssign") { | ||
| do { | ||
| var instance = NonTrivialCopyAndCopyMoveAssign() | ||
| expectEqual(0, instance.assignCounter) | ||
| let instance2 = NonTrivialCopyAndCopyMoveAssign() | ||
| instance = instance2 | ||
| // `operator=` isn't called. | ||
| expectEqual(0, instance.assignCounter) | ||
| takeValue(instance2) | ||
| } | ||
| // The number of construcors and destructors called for `NonTrivialCopyAndCopyMoveAssign` must be balanced. | ||
| expectEqual(0, InstanceBalanceCounter.getCounterValue()) | ||
| } | ||
|
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| runAllTests() |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| // RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -I %S/Inputs -enable-experimental-cxx-interop -emit-ir %s -Xcc -fignore-exceptions -O | %FileCheck %s | ||
|
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| import CopyMoveAssignment | ||
|
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| @inline(never) | ||
| func takeValue<T>(_ x: T) { | ||
| let _ = x | ||
| } | ||
|
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| @inline(never) | ||
| public func copyAssign() { | ||
| var instance = NonTrivialCopyAndCopyMoveAssign() | ||
| let instance2 = NonTrivialCopyAndCopyMoveAssign() | ||
| instance = instance2 | ||
| takeValue(instance2) | ||
| takeValue(instance) | ||
| } | ||
|
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| // CHECK-LABEL: define {{.*}}copyAssign | ||
| // CHECK: call {{void|\%struct.NonTrivialCopyAndCopyMoveAssign\*}} @{{_ZN31NonTrivialCopyAndCopyMoveAssignC1Ev|_ZN31NonTrivialCopyAndCopyMoveAssignC2Ev|"\?\?0NonTrivialCopyAndCopyMoveAssign@@QEAA@XZ"}}(%struct.NonTrivialCopyAndCopyMoveAssign* %[[COPY_INSTANCE:.*]]) | ||
| // CHECK: call {{void|\%struct.NonTrivialCopyAndCopyMoveAssign\*}} @{{_ZN31NonTrivialCopyAndCopyMoveAssignC1Ev|_ZN31NonTrivialCopyAndCopyMoveAssignC2Ev|"\?\?0NonTrivialCopyAndCopyMoveAssign@@QEAA@XZ"}}(%struct.NonTrivialCopyAndCopyMoveAssign* %[[COPY_INSTANCE2:.*]]) | ||
| // CHECK: call {{void|\%struct.NonTrivialCopyAndCopyMoveAssign\*}} @{{_ZN31NonTrivialCopyAndCopyMoveAssignD1Ev|_ZN31NonTrivialCopyAndCopyMoveAssignD2Ev|"\?\?1NonTrivialCopyAndCopyMoveAssign@@QEAA@XZ"}}(%struct.NonTrivialCopyAndCopyMoveAssign* %[[COPY_INSTANCE]]) | ||
| // CHECK: call {{void|\%struct.NonTrivialCopyAndCopyMoveAssign\*}} @{{_ZN31NonTrivialCopyAndCopyMoveAssignC1ERKS_|_ZN31NonTrivialCopyAndCopyMoveAssignC2ERKS_|"\?\?0NonTrivialCopyAndCopyMoveAssign@@QEAA@AEBU0@@Z"}}(%struct.NonTrivialCopyAndCopyMoveAssign* %[[COPY_INSTANCE]], %struct.NonTrivialCopyAndCopyMoveAssign* %[[COPY_INSTANCE2]]) | ||
| // CHECK: call {{.*}} @{{_ZN31NonTrivialCopyAndCopyMoveAssignD1Ev|_ZN31NonTrivialCopyAndCopyMoveAssignD2Ev|"\?\?1NonTrivialCopyAndCopyMoveAssign@@QEAA@XZ"}}(%struct.NonTrivialCopyAndCopyMoveAssign* %[[COPY_INSTANCE2]]) | ||
| // CHECK: call {{.*}} @{{_ZN31NonTrivialCopyAndCopyMoveAssignD1Ev|_ZN31NonTrivialCopyAndCopyMoveAssignD2Ev|"\?\?1NonTrivialCopyAndCopyMoveAssign@@QEAA@XZ"}}(%struct.NonTrivialCopyAndCopyMoveAssign* %[[COPY_INSTANCE]]) | ||
|
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| // CHECK-LABEL: define {{.*}}takeAssign | ||
| // CHECK: call {{void|\%struct.NonTrivialCopyAndCopyMoveAssign\*}} @{{_ZN31NonTrivialCopyAndCopyMoveAssignC1Ev|_ZN31NonTrivialCopyAndCopyMoveAssignC2Ev|"\?\?0NonTrivialCopyAndCopyMoveAssign@@QEAA@XZ"}}(%struct.NonTrivialCopyAndCopyMoveAssign* %[[MOVE_INSTANCE:.*]]) | ||
| // CHECK: call {{.*}} @{{_ZN31NonTrivialCopyAndCopyMoveAssignD1Ev|_ZN31NonTrivialCopyAndCopyMoveAssignD2Ev|"\?\?1NonTrivialCopyAndCopyMoveAssign@@QEAA@XZ"}}(%struct.NonTrivialCopyAndCopyMoveAssign* %[[MOVE_INSTANCE]]) | ||
| // CHECK: call {{.*}} @{{_ZN31NonTrivialCopyAndCopyMoveAssignD1Ev|_ZN31NonTrivialCopyAndCopyMoveAssignD2Ev|"\?\?1NonTrivialCopyAndCopyMoveAssign@@QEAA@XZ"}}(%struct.NonTrivialCopyAndCopyMoveAssign* %[[MOVE_INSTANCE]]) | ||
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| // CHECK-LABEL: } | ||
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| @inline(never) | ||
| public func takeAssign() { | ||
| var instance = NonTrivialCopyAndCopyMoveAssign() | ||
| instance = NonTrivialCopyAndCopyMoveAssign() | ||
| takeValue(instance) | ||
| } | ||
|
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| copyAssign() | ||
| takeAssign() |
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Nit, non-blocking: the other special member tests are in
Cxx/value-witness-table.