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da07ff577c
PrintAsClang is supposed to emit declarations in the same order regardless of the compiler’s internal state, but we have repeatedly found that our current criteria are inadequate, resulting in non-functionality-affecting changes to generated header content. Add a diagnostic that’s emitted when this happens soliciting a bug report. Since there *should* be no cases where the compiler fails to order declarations, this diagnostic is never actually emitted. Instead, we test this change by enabling `-verify` on nearly all PrintAsClang tests to make sure they are unaffected. This did demonstrate a missing criterion that only mattered in C++ mode: extensions that varied only in their generic signature were not sorted stably. Add a sort criterion for this.
117 lines
2.8 KiB
Swift
117 lines
2.8 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: split-file %s %t
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// RUN: %target-swift-frontend %t/swiftMod.swift -module-name SwiftMod -typecheck -verify -emit-clang-header-path %t/swiftMod.h -I %t -enable-experimental-cxx-interop -Xcc -DFIRSTPASS
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// RUN: %target-interop-build-swift %t/swiftMod.swift -o %t/swift-execution -module-name SwiftMod -I %t -g -DSECOND_PASS -Xcc -DSWIFT_CXX_INTEROP_HIDE_SWIFT_ERROR
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// RUN: %target-codesign %t/swift-execution
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// RUN: %target-run %t/swift-execution | %FileCheck %s
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// REQUIRES: executable_test
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// UNSUPPORTED: OS=windows-msvc
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//--- header.h
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#ifndef FIRSTPASS
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#include "swiftMod.h"
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inline SwiftMod::ExposedToCxx createSwiftClassInCxx() {
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return SwiftMod::ExposedToCxx::init();
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}
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inline void passSwiftClassToCxx(SwiftMod::ExposedToCxx value) {
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value.setI(-11);
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value.testMethod();
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}
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// FIXME: Add test for `moved` passThrough once 'move' is supported
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// for Swift class typesin C++.
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inline SwiftMod::ExposedToCxx passThroughSwiftClass(SwiftMod::ExposedToCxx value) {
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auto copy = value;
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value.setI(2);
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return copy;
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}
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int puts(const char *);
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// FIXME: There's a bug where destructor isn't called if
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// it's not explicitly defined.
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class __attribute__((swift_attr("import_owned"))) InClass {
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SwiftMod::ExposedToCxx value;
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public:
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~InClass() {
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puts("destroy ~InClass()");
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}
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inline InClass(SwiftMod::ExposedToCxx value) : value(value) {}
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inline SwiftMod::ExposedToCxx getValue() const {
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return value;
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}
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};
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#endif
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//--- module.modulemap
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module SwiftToCxxTest {
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header "header.h"
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requires cplusplus
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}
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//--- swiftMod.swift
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import SwiftToCxxTest
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public class ExposedToCxx {
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public init() {
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i = 0
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print("ExposedToCxx.init")
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}
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deinit {
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print("ExposedToCxx\(i).deinit")
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}
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public final func testMethod() {
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print("ExposedToCxx\(i).testMethod")
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}
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public var i: Int
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}
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#if SECOND_PASS
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func testReceiveAndPassSwiftClass() {
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let classInstance = createSwiftClassInCxx()
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classInstance.testMethod()
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classInstance.i = 12
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classInstance.testMethod()
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passSwiftClassToCxx(classInstance)
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classInstance.testMethod()
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passThroughSwiftClass(classInstance).testMethod()
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}
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testReceiveAndPassSwiftClass()
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func testReceiveAndPassSwiftClassInClass() {
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let v = InClass(ExposedToCxx())
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v.getValue().i = 75
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v.getValue().testMethod()
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}
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testReceiveAndPassSwiftClassInClass()
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#endif
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// CHECK: ExposedToCxx.init
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// CHECK-NEXT: ExposedToCxx0.testMethod
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// CHECK-NEXT: ExposedToCxx12.testMethod
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// CHECK-NEXT: ExposedToCxx-11.testMethod
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// CHECK-NEXT: ExposedToCxx-11.testMethod
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// CHECK-NEXT: ExposedToCxx2.testMethod
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// CHECK-NEXT: ExposedToCxx2.deinit
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// CHECK: ExposedToCxx.init
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// CHECK-NEXT: ExposedToCxx75.testMethod
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// CHECK-NEXT: destroy ~InClass()
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// CHECK-NEXT: ExposedToCxx75.deinit
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