[swift-dev] hmap files

Rafkind, Jon jon.rafkind at hpe.com
Tue Apr 26 13:51:53 CDT 2016

Well I'm wondering what to do with them since I am writing a program
that directly invokes the swift compiler code. Meaning, I create a
swift::Module*, call swift::parseIntoSourceFile,
swift::performTypeChecking, etc. So far it doesn't seem that I need to
pass along the hmap files to anything in the swift codebase, perhaps the
hmap files I see xcode adding to the swiftc lines so far are all

On 04/26/2016 11:46 AM, Daniel Dunbar wrote:
> They are "header map" files and you are right they are very poorly documented.
> Xcode uses them to provide the compiler with a mapping of textual include names to actual file paths.
> What are you specifically looking into?
>  - Daniel
>> On Apr 26, 2016, at 11:42 AM, Rafkind, Jon via swift-dev <swift-dev at swift.org> wrote:
>> What are hmap files and how do they relate to the swift compilation
>> process? It seems that they are a clang thing, but I can't find any
>> documentation on them.
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