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Sema: Lift restriction on @objc categories of concrete subclasses of generic classes

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In-place initialization means the class has a symbol we can reference
from the category, so there's nothing to do on the IRGen side.

For JIT mode, we just need to realize the class metadata by calling an
accessor instead of directly referencing the symbol though.
This commit is contained in:
Slava Pestov
2018-08-14 18:04:33 -07:00
parent 24a9a5156c
commit 4069fa68db
12 changed files with 76 additions and 83 deletions
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3
lib/IRGen/MetadataRequest.cpp
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@@ -409,9 +409,6 @@ llvm::Constant *irgen::tryEmitConstantHeapMetadataRef(IRGenModule &IGM,
// If the class must not require dynamic initialization --- e.g. if it
// is a super reference --- then respect everything that might impose that.
//
// FIXME: This should only care about relocation, not initialization, so
// that we can emit categories for concrete subclasses of generic classes.
if (!allowDynamicUninitialized) {
if (doesClassMetadataRequireInitialization(IGM, theDecl))
return nullptr;