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94e999a1b5
We used to diagnose references to unavailable declarations in two places: - inside Exprs, right after type checking the expression - inside TypeReprs, from resolveType() In broad terms, resolveType() is called with TypeReprs stored inside both Stmts and Decls. To handle the first case, I added a new overload of diagAvailability() that takes a Stmt, to be called from typeCheckStmt(). This doesn't actually walk into any Exprs stored inside the statement; this means it only walks Patterns and such. For the second case, a new DeclAvailabilityChecker is now defined in TypeCheckAccess.cpp. It's structure is analogous to the other three walkers there: - AccessControlChecker - UsableFromInlineChecker - ExportabilityChecker The new implementation of availability checking for types introduces a lot more code than the old online logic it replaces. However, I hope to consolidate some of the code duplication among the four checkers that are defined in TypeCheckAccess.cpp, and do some other cleanups that will make the benefit of the new approach apparent.
92 lines
2.7 KiB
Swift
92 lines
2.7 KiB
Swift
// This file was used by Sema/availability_versions_multi.swift to
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// test that we build enough of the type refinement context as needed to
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// validate declarations when resolving declaration signatures.
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//
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// These days, we don't validate availability in secondary files at all,
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// so the test here is just to make sure we don't crash.
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//
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// This file relies on the minimum deployment target for OS X being 10.9.
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@available(OSX, introduced: 99.52)
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private class PrivateIntroduced99_52 { }
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class OtherIntroduced10_9 { }
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@available(OSX, introduced: 99.51)
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class OtherIntroduced99_51 {
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func uses99_52() {
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// If this were the primary file then the below would emit an error, because
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// PrivateIntroduced99_53 is not available on 99.52. But since we only
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// run the first pass of the type checker on these declarations,
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// the body is not checked.
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_ = PrivateIntroduced99_52()
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}
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// This method uses a 99_52 only type in its signature, but we don't
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// validate it since it comes from a secondary file.
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func returns99_52() -> OtherIntroduced99_52 {
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// Body is not type checked (by design) so no error is expected for unavailable type used in return.
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return OtherIntroduced99_52()
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}
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@available(OSX, introduced: 99.52)
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func returns99_52Introduced99_52() -> OtherIntroduced99_52 {
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return OtherIntroduced99_52()
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}
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func takes99_52(o: OtherIntroduced99_52) {
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}
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@available(OSX, introduced: 99.52)
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func takes99_52Introduced99_52(o: OtherIntroduced99_52) {
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}
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var propOf99_52: OtherIntroduced99_52 =
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OtherIntroduced99_52() // We don't expect an error here because the initializer is not type checked (by design).
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@available(OSX, introduced: 99.52)
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var propOf99_52Introduced99_52: OtherIntroduced99_52 = OtherIntroduced99_52()
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@available(OSX, introduced: 99.52)
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class NestedIntroduced99_52 : OtherIntroduced99_52 {
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override func returns99_52() -> OtherIntroduced99_52 {
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}
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@available(OSX, introduced: 99.53)
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func returns99_53() -> OtherIntroduced99_53 {
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}
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}
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}
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@available(OSX, introduced: 99.51)
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class SubOtherIntroduced99_51 : OtherIntroduced99_51 {
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}
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@available(OSX, introduced: 99.52)
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class OtherIntroduced99_52 : OtherIntroduced99_51 {
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}
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extension OtherIntroduced99_51 {
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}
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extension OtherIntroduced10_9 {
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@available(OSX, introduced: 99.51)
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func extensionMethodOnOtherIntroduced10_9AvailableOn99_51(_ p: OtherIntroduced99_51) { }
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}
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@available(OSX, introduced: 99.51)
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extension OtherIntroduced99_51 {
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func extensionMethodOnOtherIntroduced99_51() { }
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@available(OSX, introduced: 99.52)
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func extensionMethodOnOtherIntroduced99_51AvailableOn99_52() { }
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}
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@available(OSX, introduced: 99.53)
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class OtherIntroduced99_53 {
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}
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var globalFromOtherOn99_52 : OtherIntroduced99_52? = nil
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