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[PL] Native: Remove harmful private visibility guard in deserialization of LazyIr

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Kotlin/Native codegen needs to deserialize all fields throughout the class hierarchy to build the proper binary class layout. That becomes impossible with the guard condition that prevents loading private top-level classes from another module in LazyIR (see https://github.com/JetBrains/kotlin/blob/2a4d8800374578c1aa9ec9c996b393a98f5a6e3b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/KonanIrlinker.kt#L701). The guard suits well for the partial linkage needs, but it causes the codegen to fail with `Unbound public symbol IrClassPublicSymbolImpl: [ File '/file/in/the/library.kt' <- private.top.level/ClassDeclaration|null[0] ]` error.

To prevent this the guard is removed. This does not influence the partial linkage in general except for the different error message being generated: `Function 'foo' can not be called: Private function declared in module <A> can not be accessed in module <B>` instead of `Function 'foo' can not be called: No function found for symbol '<symbol>'`.

#KT-54469
This commit is contained in:
Dmitriy Dolovov
2023-03-27 11:00:06 +02:00
parent 681e85eaed
commit 7382b31fdc
7 changed files with 35 additions and 21 deletions
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compiler/testData/klibABI/changeFunctionVisibility/main/m.kt
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+9 -3
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@@ -8,14 +8,12 @@ fun box() = abiTest {
success("publicToInternalTopLevelFunction.v2") { publicToInternalTopLevelFunction() } // Signature remains the same.
success("publicToInternalPATopLevelFunction.v2") { publicToInternalPATopLevelFunction() } // Signature remains the same.
unlinkedSymbol("/publicToPrivateTopLevelFunction") { publicToPrivateTopLevelFunction() } // Signature changed.
unlinkedTopLevelPrivateSymbol("/publicToPrivateTopLevelFunction") { publicToPrivateTopLevelFunction() } // Signature changed.
success("Container.publicToProtectedFunction.v2") { c.publicToProtectedFunction() } // Signature remains the same.
success("Container.publicToProtectedFunction.v2") { ci.publicToProtectedFunction() } // Signature remains the same.
// TODO: KT-54469, Container.publicToInternalFunction() should fail because it is accessed from another module.
success("Container.publicToInternalFunction.v2") { c.publicToInternalFunction() } // Signature remains the same.
unlinkedSymbol("/ContainerImpl.publicToInternalFunction") { ci.publicToInternalFunction() } // FOs are not generated for internal members from other module.
// TODO: KT-54469, Container.publicToInternalPAFunction() should fail because it is accessed from another module.
success("Container.publicToInternalPAFunction.v2") { c.publicToInternalPAFunction() } // Signature remains the same.
unlinkedSymbol("/ContainerImpl.publicToInternalPAFunction") { ci.publicToInternalPAFunction() } // FOs are not generated for internal members from other module.
inaccessible("publicToPrivateFunction") { c.publicToPrivateFunction() } // Inaccessible from other module though signature remains the same.
@@ -59,6 +57,14 @@ private inline fun TestBuilder.unlinkedSymbol(signature: String, noinline block:
expectFailure(linkage("Function '$functionName' can not be called: No function found for symbol '$signature'"), block)
}
private inline fun TestBuilder.unlinkedTopLevelPrivateSymbol(signature: String, noinline block: () -> Unit) {
if (testMode == NATIVE_CACHE_STATIC_EVERYWHERE) {
val functionName = signature.removePrefix("/").substringAfterLast(".")
expectFailure(linkage("Function '$functionName' can not be called: Private function declared in module <lib1> can not be accessed in module <main>"), block)
} else
unlinkedSymbol(signature, block)
}
private inline fun TestBuilder.inaccessible(functionName: String, noinline block: () -> Unit) = expectFailure(
linkage("Function '$functionName' can not be called: Private function declared in module <lib1> can not be accessed in module <main>"),
block