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🔒 Fix missing HTTPS on links
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This is because `MRuby::Build.currrent` and `MRuby::CrossBuild.current` are assignments to different instance variables.
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feat(CI): add a GitHub Action to check spelling
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- Fix spelling
- Run only on pull request
- Using https://github.com/client9/misspell
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feat(CI): add a GitHub Action to lint the YAML
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Rename build configuration files for CI
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Currently, there are build configuration files for CI, `travis.rb` and
`appveyor.rb`, but they are used for GCC/Clang and MSVC, not for Travis CI
and Appveyor, respectively.
Therefore, rename them to `gcc-clang.rb` and `msvc.rb`, respectively, and
move them under `build_config/ci/` to clarify that they are for CI.
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shuujii/guess-toolchain-when-MRubyBuild-toolchain-argument-is-omitted
Guess toolchain when `MRuby::Build#toolchain` argument is omitted
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- Run only on pull request
- Add a `.yamllint` config file
- Lint YAML
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shuujii/ensure-initialization-of-RVALUE_zero-in-mrb_obj_alloc
Ensure initialization of `RVALUE_zero` in `mrb_obj_alloc`
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shuujii/output-build-log-at-the-time-of-installation
Output build log at the time of installation
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refactor: remove trailing whitespace from C, Header, Ruby and YAML files
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Lint
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Union initialization initializes the first member. The first member of
`RVALUE` is `struct free_obj`, but because it is only 4-words, it seems that
initialization after the 5th word is not ensured.
Therefore, I created 6-words `struct RVALUE_initializer` for initialization
and made it the first member.
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Fix spelling
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The accuracy is greatly improved by using the C preprocessor to scan C
sources for presym. C preprocessor can perfectly interpret all comments and
preprocessor directives, so it can detect all symbols defined, for example
`mrbgems/mruby-socket/src/const.cstub`.
Also, as described later, this change will greatly improve the accuracy of
presym detection from Ruby sources.
## Result
The number of lines in the `presym` file for all gems is as follows:
```console
Previous: 999 (false positive = 89, undetected = 297)
New: 1207
```
## Build process
The new build process (with presym) is as follows:
1. Build `mrbc` without presym (more on building without presym later).
2. Compile Ruby sources to C struct format with the `mrbc` created in
step 1, and create` mrblib.c` and `gem_init.c`. Note that the symbols
in the created files are output as `MRB_SYM` family macros or
`mrb_intern_lit` instead of IDs (details will be described later).
3. C preprocessor processes C sources including the created files of
step 2 and outputs them as `.i` files. In these files, for example,
`MRB_IVSYM(foo)` is converted to `<@! "@" "foo" !@>` and
`mrb_define_module(mrb, "Foo")` is converted to `<@! "Foo" !@>`.
4. Scan the files created in step 3 and create `presym` and` presym.inc`
files.
The files created in step 2 should output all static symbols defined in Ruby
sources, including local variables, so we can detect all presyms by just
scanning C sources without scanning Ruby sources directly.
Further, by this process, the files to be scanned becomes the same as the
files to be compiled, so that there is no excess or deficiency.
## Related changes
The following changes have been made in relation to realizing this feature.
### Allow build without presym
It enables build without presym to achieve the "Build process: 1". This
incorporates #5202, see its issue for details.
Note that when presym is enabled, even adding a local variable to a Ruby
source may change contents of presym and require recompilation of almost
all C sources. This is inconvenient, especially during trial and error in
development, but this feature is also useful because it does not cause
this problem if presym is disabled.
### Automatically create build target for `mrbc` without presym
The `mrbc` used in the "Build process: 1" will be built by automatically
creating a build target for it. The build name is `SOURCE_BUILD_NAME/mrbc`.
### Constantize output of C struct format by `mrbc`
To realizing the "Build process: 2", as mentioned above, symbol IDs are not
output directly in C struct format output by `mrbc`. As a result, the output
becomes constant regardless of the state of presym at the time of `mrbc`
build, and it is possible to detect symbols of Ruby sources in the same way
as other C sources.
Note that `mrb_intern_lit` is used for symbols that do not become presym,
but in this state, the corresponding element in the symbol array cannot be
statically initialized, so it is initialized at run time (therefore, in this
case, the `const` qualifier is not added to the symbol array).
### Specify arbitrary `mrbc` file
To realizing the "Build process: 2", enabled to specify `mrbc` created by
another build target or pre-built` mrbc`. Use `MRuby::Build#mrbcfile =` to
specify it explicitly. You can omit the "Build process: 1" by specifying
pre-built `mrbc`, and you can always use an optimized build to compile Ruby
sources faster. I think changes that affect the output of `mrbc` are rare,
so in many cases it helps to improve efficiency.
With presym, the build will be a little slower due to more build steps, but
this feature will improve it a bit.
### Create presym files for each build target
This feature was proposed at #5194 and merged once, but was reverted in
5c205e6e due to problems especially with cross-compilation. It has been
introduced again because this change solves the problem.
The presym files will be created below.
* `build/NAME/presym`
* `build/NAME/include/mruby/presym.inc`
### Other changes
* Because presym detection accuracy is greatly improved as mentioned above,
`MRuby::Gem::Specification#cdump?` is set to true by default, and
`disable_cdump` is added instead of `enable_cdump`. Also, support for gem
specific presym files has been discontinued (https://github.com/mruby/mruby/issues/5151#issuecomment-730967232).
* Previously, `mrbc` was automatically created for the `host` build, but it
will not be created if the build target for `mrbc` mentioned above is
automatically created. At this time, `mrbc` file of the `mrbc` build is
copied to` bin/`.
* Two types of `.d` files will be created, `.o.d` and `.i.d`. oThis is
because if `.i` depends on `presym.inc`, the dependency will circulate, so
the `.d` file cannot be shared.
* Changed file created with `enable_cxx_exception` to `X-cxx.cxx` from
`X.cxx` to use the mruby standard Rake rule.
### Note
Almost all C sources will need to be recompiled if there are any changes to
`persym.inc` (if not recompiled properly, it will often result in run-time
error). If `gcc` toolchain is used, dependencies are resolved by the `.d`
file, so it become automatically recompile target, but if not (e.g. MSVC),
it is necessary to manually make it recompile target.
Also, even if `gcc` toolchain is used, it may not become recompile target if
external gems does not use the mruby standard Rake rule. In particular, if
the standard rule is overwritten, such as
https://github.com/mruby/mruby/pull/5112/files, `.d` file will not be read,
so be careful.
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```ruby
def method_missing(meth, ...)
send(:"do_#{meth}", ...)
end
```
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They used to be `size_t`, `uint32_t` and `ptrdiff_t`. Now all of them
made to be `uint32_t`.
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shuujii/call-super-before-creating-host-build-in-MRubyCrossBuild-initialize
Call `super` before creating `host` build in `MRuby::CrossBuild#initialize`
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Call `super` (`block`) ahead so that creation of the `host` build can be
skipped if pre-built `mrbc` can be specified in the future.
close #5213.
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Allow obsoluted `MRB_METHOD_T_STRUCT`
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shuujii/remove-unused-@endian-in-MRubyCrossBuild-initialize
Remove unused `@endian` in `MRuby::CrossBuild#initialize`
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shuujii/update-Configuration-Options-Changed-in-doc-mruby3.md
Update "Configuration Options Changed" in `doc/mruby3.md` [ci skip]
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shuujii/make-it-possible-that-libmruby.a-is-not-created
Make it possible that `libmruby.a` is not created
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Previously, `libmruby.a` was created even if only `mruby-bin-mrbc` or`
mruby-compiler` was specified for gem, but by specifying `disable_libmruby`,
the creation of `libmruby.a` can be suppressed.
### Note
The https://github.com/mruby/mruby/pull/5084#issuecomment-723521971
incompatibility seems to be difficult for users to avoid, so the original
behavior has been restored. Therefore, if we need `mrbc` other than the
`host` build, we need to explicitly specify `mruby-bin-mrbc` gem.
Due to the above changes, `build_config/boxing.rb` etc. will not work, but I
have added` mruby-bin-mrbc` to `default.gembox` to fix it. I don't think
this change is a big deal because originally `mruby-compiler` was included.
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Adjust insertion point in `fix_prepend_module()`.
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Module#include and Module#prepend now affect classes and modules
that have already included or prepended the receiver, mirroring the
behavior if the arguments were included in the receiver before
the other modules and classes included or prepended the receiver.
```ruby
class C; end
module M1; end
module M2; end
C.include M1
M1.include M2
p C.ancestors #=> [C, M1, M2, Object, Kernel, BasicObject]
```
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shuujii/move-mrbc-test-to-mruby-bin-mrbc-gem-from-mruby-compiler-gem
Move `mrbc` test to `mruby-bin-mrbc` gem from `mruby-compiler` gem
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Remove `build/presym{,.inc}` by `rake clean` [ci skip]
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Currently, adding gems to build configuration and rebuilding does not
regenerate `presym`, which can lead to build errors.
Therefore in this case we need to remove the `presym` file and then rebuild
mruby, but when the` presym` file is regenerated we will need to recompile
most of the files, so it seems useful to have the `presym` file deleted by
`rake clean`.
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shuujii/fix-build-for-C++11-when-enable_cxx_exception
Fix build for C++ version >= C++11 when `enable_cxx_exception`; close #5199
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Remove unused Rake rules
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