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Make cxx.h available to high level code generators. #364

Merged
merged 2 commits into from
Oct 16, 2020
Merged

Make cxx.h available to high level code generators. #364

merged 2 commits into from
Oct 16, 2020

Commits on Oct 16, 2020

  1. Make cxx.h available to high level code generators. 

    At present, this file is available only from the git repository,
but higher level code generators may wish to ensure that they supply
a version of cxx.h corresponding precisely to the version of cxx
in use.

Specifically, such higher level code generators may wish to use
rust::Str and similar types in code which _they_ autogenerate,
and thus need a way to include definitions of such types. As
this code is autogenerated, it can't reasonably rummage around
the cxx git repository to find the correct cxx.h header.

To be even more specific, higher level code generators may wish
to pass rust::Str and/or rust::String types into C++, in order
to create UniquePtr<CxxString>s from Rust strings during function
calls.
    @adetaylor
    adetaylor committed Oct 16, 2020
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  2. Expose cxx_gen::HEADER as a static &'static str

    @dtolnay
    dtolnay committed Oct 16, 2020
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