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f962d76362
Reference counting is not compatible. Fixes a runtime crash if a C++ reference type is put into an Array. https://github.com/swiftlang/swift/issues/83082 rdar://155919841
67 lines
1.4 KiB
Swift
67 lines
1.4 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: split-file %s %t
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// RUN: %swiftc_driver -O -I %t/Inputs %t/test.swift -cxx-interoperability-mode=default -I %swift_src_root/lib/ClangImporter/SwiftBridging -o %t/a.out
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// RUN: %target-codesign %t/a.out
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// RUN: %target-run %t/a.out | %FileCheck %s
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// REQUIRES: executable_test
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// UNSUPPORTED: back_deployment_runtime
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// Metadata for foreign reference types is not supported on Windows.
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// UNSUPPORTED: OS=windows-msvc
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//--- Inputs/module.modulemap
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module Test {
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header "reftype.h"
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requires cplusplus
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}
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//--- Inputs/reftype.h
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#include "swift/bridging"
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class RefType {
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public:
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static RefType* _Nonnull makeRefType() SWIFT_RETURNS_RETAINED {
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return new RefType();
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}
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private:
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RefType() : _refCount(1) {
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}
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RefType(const RefType&) = delete;
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RefType& operator=(const RefType&) = delete;
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~RefType() {
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}
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inline friend void retainRefType(RefType* _Nonnull x) {
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x->_refCount += 1;
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}
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inline friend void releaseRefType(RefType* _Nonnull x) {
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x->_refCount -= 1;
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if (x->_refCount == 0) {
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delete x;
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}
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}
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int _refCount;
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} SWIFT_SHARED_REFERENCE(retainRefType, releaseRefType);
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//--- test.swift
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import Test
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@inline(never)
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func go() {
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let x: RefType = RefType.makeRefType()
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var y: [RefType] = []
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y.append(x)
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// CHECK: 1
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print(y.count)
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}
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go()
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