[PATCH] D37299: [Modules] Add ability to specify module name to module file mapping in a file

[Richard Smith - zygoloid via Phabricator via cfe-commits]

rsmith added a comment.

I wonder whether this feature really pulls its weight compared to using `@file` and prepending `-fmodule-file=` to each line.

The big difference between this patch and an `@file` seems to be the filtering by prefix / storing this information as a subset of the data in a file. Can you say a bit more about how you're envisioning this integrating into build systems, such that that would be a natural way to model this mapping?


https://reviews.llvm.org/D37299