Joe Groff 08a48565fb Sema: Introduce intrinsic pointer argument conversions. ...

Add primitive type-checker rules for pointer arguments. An UnsafePointer argument accepts:

- an UnsafePointer value of matching element type, or of any type if the argument is UnsafePointer<Void>,
- an inout parameter of matching element type, or of any type if the argument is UnsafePointer<Void>, or
- an inout Array parameter of matching element type, or of any type if the argument is UnsafePointer<Void>.

A ConstUnsafePointer argument accepts:

- an UnsafePointer, ConstUnsafePointer, or AutoreleasingUnsafePointer value of matching element type, or of any type if the argument is ConstUnsafePointer<Void>,
- an inout parameter of matching element type, or of any type if the argument is ConstUnsafePointer<Void>, or
- an inout or non-inout Array parameter of matching element type, or of any type if the argument is ConstUnsafePointer<Void>.

An AutoreleasingUnsafePointer argument accepts:

- an AutoreleasingUnsafePointer value of matching element type, or
- an inout parameter of matching element type.

This disrupts some error messages in unrelated tests, which is tracked by <rdar://problem/17380520>.

Swift SVN r19008

2014-06-19 18:03:10 +00:00

32 KiB

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