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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.
84 lines
2.0 KiB
Swift
84 lines
2.0 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: split-file %s %t
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// RUN: %target-swift-frontend %t/TestFmSwift.swift -module-name TestFm -enable-experimental-cxx-interop -typecheck -verify -emit-clang-header-path %t/TestFm.framework/Headers/TestFm-Swift.h
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// RUN: %target-swift-frontend %t/SecondSwift.swift -module-name Second -enable-experimental-cxx-interop -typecheck -verify -emit-clang-header-path %t/Second.framework/Headers/Second-Swift.h
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// RUN: %target-interop-build-clangxx -std=gnu++17 -fmodules -fcxx-modules -c %t/consumer.cpp -F %t -fsyntax-only -Werror=non-modular-include-in-framework-module
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// Check that a client C++ file can use Swift stdlib APIs from two
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// mixed-language C++ and Swift frameworks.
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// This will only pass on Darwin with -Werror=non-modular-include-in-framework-module,
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// as the SDK is not modularized on other platforms.
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// REQUIRES: OS=macosx
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//--- TestFm.framework/Headers/TestFm.h
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#pragma once
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class CxxClass {
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public:
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int testMethod() const {
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return 42;
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}
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};
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//--- TestFm.framework/Modules/module.modulemap
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framework module TestFm {
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umbrella header "TestFm.h"
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export *
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module * { export * }
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}
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module TestFm.Swift {
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header "TestFm-Swift.h"
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}
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//--- TestFmSwift.swift
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public func testSwiftFunc() -> String {
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return ""
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}
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//--- Second.framework/Headers/Second.h
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#pragma once
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class CxxSecondClass {
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public:
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int testMethodTwo() const {
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return 42;
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}
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};
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//--- Second.framework/Modules/module.modulemap
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framework module Second {
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umbrella header "Second.h"
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export *
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module * { export * }
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}
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module Second.Swift {
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header "Second-Swift.h"
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}
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//--- SecondSwift.swift
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public func testSwiftFuncTwo() -> String {
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return ""
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}
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//--- consumer.cpp
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#pragma clang module import TestFm
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#pragma clang module import Second
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void testUseSwiftStdlibAPIsFromTwoFrameworksImportedViaModules() {
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auto swiftString = TestFm::testSwiftFunc();
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auto c1 = swiftString.getCount();
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auto swiftString2 = Second::testSwiftFuncTwo();
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auto c2 = swiftString.getCount();
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}
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