By default, windows.h exposes a large number of problematic define statements
which are UpperCamelCase, such as a define from `CreateWindow` to
`CreateWindow{A,W}`.
As many of these names are generic (e.g. CreateFile, CreateWindow), they can
mess up Gecko code that may legitimately have its own methods with the same
names.
The header also defines some traditional SCREAMING_SNAKE_CASE defines which
can mess up our code by conflicting with local values.
This patch adds a simple code generator which generates wrappers for these
defines, and uses them to wrap the windows.h wrapper using the `stl_wrappers`
mechanism, allowing us to use windows.h in more places.
Differential Revision: https://phabricator.services.mozilla.com/D10932
By default, windows.h exposes a large number of problematic define statements
which are UpperCamelCase, such as a define from `CreateWindow` to
`CreateWindow{A,W}`.
As many of these names are generic (e.g. CreateFile, CreateWindow), they can
mess up Gecko code that may legitimately have its own methods with the same
names.
The header also defines some traditional SCREAMING_SNAKE_CASE defines which
can mess up our code by conflicting with local values.
This patch adds a simple code generator which generates wrappers for these
defines, and uses them to wrap the windows.h wrapper using the `stl_wrappers`
mechanism, allowing us to use windows.h in more places.
Differential Revision: https://phabricator.services.mozilla.com/D10932
This is fairly straightforward to represent as a GENERATED_FILES, though
we have to take some care to construct the outputs tuple correctly. This
script needs to run during export, and unfortunately none of the STL
headers have proper file extensions, so the 'new' header is
special-cased in the recursive make backend to serve as a marker for
running it in the correct tier.
We can't remove the stl-headers file yet because it is still used for
the system header generation.
MozReview-Commit-ID: 3tQTOY0LAsQ
--HG--
extra : source : 828d43ec1b16edaac69c42f15561f26e209051f1
This is fairly straightforward to represent as a GENERATED_FILES, though
we have to take some care to construct the outputs tuple correctly. This
script needs to run during export, and unfortunately none of the STL
headers have proper file extensions, so the 'new' header is
special-cased in the recursive make backend to serve as a marker for
running it in the correct tier.
We can't remove the stl-headers file yet because it is still used for
the system header generation.
MozReview-Commit-ID: 3tQTOY0LAsQ
--HG--
extra : rebase_source : bd9f00e45a7bce4daaa0e1c16e22b28536658e37
Since the introduction of the STL wrappers, they have included
mozalloc.h, and multiple times, we've hit header reentrancy problems,
and worked around them as best as we could.
Taking a step back, all mozalloc.h does is:
- declare moz_* allocator functions.
- define inline implementations of various operator new/delete variants.
The first only requires the functions to be declared before they are used,
so mozalloc.h only needs to be included before anything that would use
those functions.
The second doesn't actually require a specific order, as long as the
declaration for those functions comes before their use, and they are
either declared in <new> or implicitly by the C++ compiler.
So all in all, it doesn't matter that mozalloc.h is included before the
wrapped STL headers. What matters is that it's included when STL headers
are included. So arrange things such that mozalloc.h is included after
the first wrapped STL header is fully preprocessed (and all its includes
have been included).
Justin Wood
Nika Layzell
arthur.iakab
Sylvestre Ledru
Mike Shal
Phil Ringnalda
Mike Hommey
Yati Sagade
Gervase Markham
Chris Jones