[swift-users] what is the use of "-frontend" argument to swift?

[Atul Sowani]

Thanks Kyle and Jordan! That's the information I was looking for. Anyway I
am not using these options explicitly, but found that they are invoked
while Swift test suite is run. A few test cases are failing for me on
ppc64le and while analyzing it I came across these options. Thanks for the
info!

Best regards,
Atul.

On Wed, Dec 6, 2017 at 4:16 AM, Jordan Rose <jordan_rose at apple.com> wrote:

> -c is an alias for -emit-object. -frontend is "magically start talking to
> Swift's implementation details" and you shouldn't use it. More info in
> docs/Driver.md <https://github.com/apple/swift/blob/master/docs/Driver.md>
> .
>
> Jordan
>
>
> On Dec 5, 2017, at 14:23, Kyle Murray via swift-users <
> swift-users at swift.org> wrote:
>
> Looks like it's an alias for -emit-object:
>
> https://github.com/apple/swift/blob/master/include/
> swift/Option/Options.td#L576
>
> ...which will give an object file as output rather than the default, an
> executable.
>
> -Kyle
>
> On Dec 5, 2017, at 1:49 AM, Atul Sowani via swift-users <
> swift-users at swift.org> wrote:
>
> Hi,
>
> What is the purpose of "-frontend -c" arguments of swift? I tried "swift
> --help" but that does not mention it. Also I couldn't find it easily in any
> swift documents. Can somebody kindly let me know the purpose of these
> arguments?
>
> Thanks,
> Atul.
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