Hi Mikio,
Try this:
swiftc -frontend -emit-silgen classdecl.swift > classdecl.sil
swiftc -parse-sil classdecl.sil
I'm not sure why -emit-silgen sometimes emits type declarations and other times
not. The only difference I can see is what without the -frontend flag, the
driver passes in -primary-file, whereas with -frontend, it does not.
Perhaps Joe or Jordan can chime in.
> On Jun 14, 2016, at 2:39 AM, Mikio Takeuchi via swift-dev
> <swift-dev@swift.org> wrote:
>
> Hi,
>
> I am learning SIL and trying to compile SIL generated by the Swift compiler.
> I succeeded in doing so with a simple Swift program for just printing "hi",
> but I got errors with another simple program which includes a declaration of
> a trivial class.
>
> I am running swift-3.0-preview-1 bundled with Xcode8-beta on OS X El Capitan.
>
> $ uname -a
> Darwin localhost 15.5.0 Darwin Kernel Version 15.5.0: Tue Apr 19 18:36:36 PDT
> 2016; root:xnu-3248.50.21~8/RELEASE_X86_64 x86_64
> $ swiftc --version
> Apple Swift version 3.0 (swiftlang-800.0.30 clang-800.0.24)
> Target: x86_64-apple-macosx10.9
> $ cat print.swift
> print("hi")
> $ swiftc -emit-silgen print.swift > print.sil
> $ swiftc -parse-sil print.sil
> $ ./print
> hi
> $ cat classdecl.swift
> class MyObject { }
> $ swiftc -emit-silgen classdecl.swift > classdecl.sil
> $ swiftc -parse-sil classdecl.sil
> classdecl.sil:26:105: error: use of undeclared type 'MyObject'
> sil_scope 2 { loc "classdecl.swift":1:7 parent @_TFC9classdecl8MyObjectD :
> $@convention(method) (@owned MyObject) -> () }
>
> ^~~~~~~~
> classdecl.sil:26:121: error: extraneous '}' at top level
> sil_scope 2 { loc "classdecl.swift":1:7 parent @_TFC9classdecl8MyObjectD :
> $@convention(method) (@owned MyObject) -> () }
>
> ^
>
> (omitted)
>
> If anybody know any clue, please let me know.
>
> Thanks,
> Mikio Takeuchi
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