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swift-mirror/test/PrintAsObjC/mixed-framework.swift
Becca Royal-Gordon da07ff577c [PrintAsClang] Warn about unstable decl order
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.
2025-02-14 21:41:36 -08:00

43 lines
1.9 KiB
Swift

// RUN: %empty-directory(%t.framework)
// RUN: %empty-directory(%t.framework/Headers)
// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -F %S/Inputs/ -module-name Mixed -import-underlying-module -parse-as-library %s -typecheck -verify -emit-objc-header-path %t.framework/Headers/mixed.h
// RUN: %FileCheck -check-prefix=CHECK -check-prefix=FRAMEWORK %s < %t.framework/Headers/mixed.h
// RUN: %check-in-clang -Watimport-in-framework-header -F %S/Inputs/ %t.framework/Headers/mixed.h
// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -module-name Mixed -import-objc-header %S/Inputs/Mixed.framework/Headers/Mixed.h %s -typecheck -verify -emit-objc-header-path %t.framework/Headers/mixed-header.h
// RUN: %FileCheck -check-prefix=CHECK -check-prefix=HEADER %s < %t.framework/Headers/mixed-header.h
// RUN: %check-in-clang -Watimport-in-framework-header -include %S/Inputs/Mixed.framework/Headers/Mixed.h %t.framework/Headers/mixed-header.h
// REQUIRES: objc_interop
// CHECK: #pragma clang diagnostic push
// CHECK-LABEL: #if __has_feature(objc_modules)
// CHECK-NEXT: #if __has_warning("-Watimport-in-framework-header")
// CHECK-NEXT: #pragma clang diagnostic ignored "-Watimport-in-framework-header"
// CHECK-NEXT: #endif
// CHECK-NEXT: @import Foundation;
// CHECK-NEXT: #endif
// FRAMEWORK-LABEL: #import <Mixed/Mixed.h>
// HEADER-NOT: __ObjC
// HEADER: #import "{{.*}}Mixed.h"
// HEADER-NOT: __ObjC
import Foundation
// CHECK-LABEL: @interface Dummy : NSNumber
public class Dummy: NSNumber {
// CHECK: - (CIntAlias)getIntAlias SWIFT_WARN_UNUSED_RESULT;
@objc public func getIntAlias() -> CIntAlias {
let result: CInt = 0
return result
}
// FRAMEWORK: @property (nonatomic, readonly) NSInteger extraData;
// HEADER: @property (nonatomic) NSInteger extraData;
@objc public internal(set) var extraData: Int = 0
} // CHECK: @end
// CHECK: #pragma clang diagnostic pop