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[SR-3926] Decide the mangling of names stored in named value type metadata #46511

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ematejska mannequin opened this issue Feb 10, 2017 · 3 comments
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[SR-3926] Decide the mangling of names stored in named value type metadata #46511

ematejska mannequin opened this issue Feb 10, 2017 · 3 comments
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affects ABI Flag: Affects ABI bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler itself

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@ematejska
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Mannequin

ematejska mannequin commented Feb 10, 2017

Previous ID SR-3926
Radar rdar://problem/31411194
Original Reporter @ematejska
Type Bug
Status Resolved
Resolution Done
Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, AffectsABI
Assignee None
Priority Medium

md5: b10257f35c55d51b156674b7fc6004e5

Issue Description:

Ahead of ABI stability, investigate if named value types should store the type name mangled or un-mangled (currently stored mangled) in the type metadata.
@bob-wilson
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@swift-ci create

@bob-wilson
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This is resolved in Swift 4.1.

From Joe Groff: "We changed the layout of nominal type descriptors into hierarchical context descriptors, so that each descriptor stores an unmangled name, and points at the context descriptor for its parent scope, each of which contains an unmangled name going all the way up to the module context."

@bob-wilson
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On second thought, that change came in right after the final branch for 4.1 so this change will land in 4.2.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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affects ABI Flag: Affects ABI bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler itself
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@bob-wilson