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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.
38 lines
1.4 KiB
Swift
38 lines
1.4 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend %s -clang-header-expose-decls=all-public -typecheck -verify -emit-clang-header-path %t/name-collision.h
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// RUN: %FileCheck %s < %t/name-collision.h
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public class C0 {
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public static var description: String { "hello" }
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public var description: String { "world" }
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}
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public class C1 {
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public var feat: Int { 123 }
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public var Feat: Int { 123 }
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}
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// CHECK: class SWIFT_SYMBOL("s:4main2C0C") C0 :
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// CHECK-NOT: getDescription()
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// CHECK: static SWIFT_INLINE_THUNK swift::String getDescription()
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// CHECK: skip emitting accessor method for 'description'. 'getDescription' already declared.
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// CHECK-NOT: getDescription()
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// CHECK:};
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// CHECK: class SWIFT_SYMBOL("s:4main2C1C") C1 :
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// CHECK-NOT: getFeat()
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// CHECK: SWIFT_INLINE_THUNK swift::Int getFeat()
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// CHECK: skip emitting accessor method for 'Feat'. 'getFeat' already declared.
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// CHECK-NOT: getFeat()
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// CHECK:};
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// CHECK: namespace main SWIFT_PRIVATE_ATTR SWIFT_SYMBOL_MODULE("main") {
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// CHECK-NOT: getDescription()
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// CHECK: SWIFT_INLINE_THUNK swift::String C0::getDescription() {
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// CHECK: skip emitting accessor method for 'description'. 'getDescription' already declared.
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// CHECK-NOT: getDescription()
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// CHECK-NOT: getFeat()
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// CHECK: SWIFT_INLINE_THUNK swift::Int C1::getFeat() {
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// CHECK: skip emitting accessor method for 'Feat'. 'getFeat' already declared.
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// CHECK-NOT: getFeat()
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