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[SymbolGraph] Put extending declarations in rootmost module

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When extending another module's type in your module, serialize declarations in
the extension into the other module's "extension" symbol graph file, including
relationships. This mechanic should continue up to the rootmost module. For
example:

A.AStruct <- B.BStruct < C.CStruct

Both BStruct and CStruct should go in `@A` symbol graph files because AStruct
owns BStruct and by extension owns CStruct. This is reflected in
documentation curation in some form already.

rdar://60796811
This commit is contained in:
Ashley Garland
2020-04-07 12:53:41 -07:00
parent 4264b39b23
commit d6e49a98db
8 changed files with 155 additions and 32 deletions
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44
test/SymbolGraph/Module/NestedExtensions.swift Normal file
View File

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// RUN: %empty-directory(%t)
// RUN: %target-build-swift %S/Inputs/NestedExtensions/A.swift -I %t -module-name A -emit-module -emit-module-path %t/
// RUN: %target-build-swift %S/Inputs/NestedExtensions/B.swift -I %t -module-name B -emit-module -emit-module-path %t/
// RUN: %target-build-swift %s -module-name NestedExtensions -emit-module -I %t -emit-module-path %t/
// RUN: %target-swift-symbolgraph-extract -module-name A -I %t -pretty-print -output-dir %t
// RUN: %target-swift-symbolgraph-extract -module-name B -I %t -pretty-print -output-dir %t
// RUN: %target-swift-symbolgraph-extract -module-name NestedExtensions -I %t -pretty-print -output-dir %t
// RUN: %FileCheck %s --input-file %t/B.symbols.json --check-prefix=MODULEB
// RUN: %FileCheck %s --input-file %t/B@A.symbols.json --check-prefix=MODULEBATA
// RUN: %FileCheck %s --input-file %t/NestedExtensions@A.symbols.json --check-prefix=NESTEDATA
// RUN: %FileCheck %s --input-file %t/NestedExtensions.symbols.json --check-prefix=NESTED
import A
import B
extension AStruct.BStruct {
public struct CStruct: P {
public func foo() -> UInt8 {
return 0
}
}
}
extension AStruct.BStruct {
public func baz() {}
}
extension AStruct.BStruct.CStruct where Thing: Equatable {
public func baz() {}
}
// BStruct belongs to AStruct and so should only ever appear in B@A extension symbol graph files.
// MODULEB-NOT: BStruct
// MODULEBATA: "precise": "s:1A7AStructV1BE7BStructV"
// CStruct belongs to BStruct, and BStruct belongs to AStruct, so should only appear in NestedExtension@A.
// NESTED-NOT: BStruct
// NESTED-NOT: CStruct
// NESTEDATB-NOT: BStruct
// NESTEDATA: "precise": "s:1A7AStructV1BE7BStructV16NestedExtensionsE7CStructV"