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[SR-9659] protocol witness table chaining directly references parent type across modules breaking on Windows #52103

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compnerd opened this issue Jan 14, 2019 · 2 comments
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[SR-9659] protocol witness table chaining directly references parent type across modules breaking on Windows #52103

compnerd opened this issue Jan 14, 2019 · 2 comments
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compiler The Swift compiler in itself

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Previous ID SR-9659
Radar None
Original Reporter @compnerd
Type Sub-task
Status Resolved
Resolution Done
Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Sub-task
Assignee @compnerd
Priority Medium

md5: aac0c97848bc79301cc3a66b225e3710

Parent-Task:

Issue Description:

We currently directly access an available_externally protocol witness table for inherited conformances. This does not work on PE/COFF and fails to link. It should be possible to have this reference be computed at runtime.
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CC: @slavapestov

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#22725

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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