Slava Pestov d65d1d25f9 Sema: Diagnostics for @_inlineable, @_versioned and Swift 4 default arguments model ...

Piggybacks some resilience diagnostics onto the availability
checking code.

Public and versioned functions with inlineable bodies can only
reference other public and internal entities, since the SIL code
for the function body is serialized and stored as part of the
module.

This includes @_transparent functions, @_inlineable functions,
accessors for @_inlineable storage, @inline(__always) functions,
and in Swift 4 mode, default argument expressions.

The new checks are a source-breaking change, however we don't
guarantee source compatibility for underscored attributes.

The new ABI and tests for the default argument model will come in
subsequent commits.

2017-01-09 16:59:13 -08:00

6.5 KiB

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