[cfe-dev] help with modules

[Nico Weber]

It seems to work for me if I pass an absolute path to -I – does that help?


On Wed, Jan 8, 2014 at 8:18 AM, Thompson, John <
John_Thompson at playstation.sony.com> wrote:

>  Hi,
>
>
>
> Could someone help me understand what is wrong with the enclosed build
> module example?  (It’s kind of in the form of a test, but ignore the
> comment for running the test, as it’s just a source file here.)
>
>
>
> I’m trying to gear up to add a fixit message for undefined types which can
> be found in a module, but I can’t get this simple scenario to work.  The
> idea is that if I later remove the #include, I’ll get an error on the
> undefined type, which nonetheless could be found in a module, allowing me
> to add a fixit.
>
>
>
> In looking at other modules tests, it seems that if I put the module.map
> file in a subdirectory and use a -I option, clang can find the module map
> there and load it, right?
>
>
>
> In looking at this in a debugger, in the HandleIncludeDirective function,
> the lookupFile call at line 1452 loads the module map.  But then at line
> 1655 a loadModule call loads the module map again, but fails.
>
>
>
> To reproduce, just run the makefile, which produces:
>
>
>
> ***
>
> d:\Clang\bugs\modules>make
>
> clang -cc1 -fmodules-cache-path=TestOutput -fmodules
> -IInputs\UndefinedFixIt1 UndefinedFixIt1.cpp
>
> <module-includes>:1:10: fatal error: 'Inputs\UndefinedFixIt1\public1.h'
> file not found
>
> #include "Inputs\UndefinedFixIt1\public1.h"
>
>          ^
>
> UndefinedFixIt1.cpp:4:10: fatal error: could not build module 'public1'
>
> #include "public1.h"
>
> ~~~~~~~~^~~~~~~~~~~
>
> 2 errors generated.
>
> make: *** [all] Error 1
>
> ***
>
>
>
> It’s probably something simple, but I can’t see it.
>
>
>
> Thanks.
>
>
>
> -John
>
>
>
>
>
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>
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