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This is a mostly straight-forward rebase of our patches on top of 13.1.0. The spec files needed a change, as GCC no longer supports STABS debug information, but we were building GCC with support for it. Highlights of this release include static `operator()`, The Equality Operator You Are Looking For and extended `constexpr` support.
64 lines
2.3 KiB
Markdown
64 lines
2.3 KiB
Markdown
# Emacs Project Configuration
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Emacs can be configured with `lsp-mode` and `clangd` to work well.
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### clangd
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The official clangd extension can be used for C++ comprehension. You
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can use the following `.clangd` file placed in the project root:
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```yaml
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CompileFlags:
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CompilationDatabase: Build/x86_64
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Add:
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- "-D__serenity__"
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- "-UNO_TLS"
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- "-I/path/to/serenity/Toolchain/Local/x86_64/x86_64-pc-serenity/include/c++/13.1.0"
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- "-I/path/to/serenity/Toolchain/Local/x86_64/x86_64-pc-serenity/include/c++/13.1.0/x86_64-pc-serenity"
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```
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You will need to change `/path/to/serenity` and change `13.1.0` to
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whatever your GCC toolchain version at the time is.
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Run cmake (`Meta/serenity.sh run` or similar) at least once for this
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to work, as it will generate the `Build/x86_64/compile_commands.json`
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that is needed by `clangd`.
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### lsp-mode
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```lisp
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(use-package lsp-mode
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:hook ((c++-mode) . lsp-deferred)
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:commands lsp
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:config
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(setq lsp-clients-clangd-args '("-j=4" "-background-index" "--log=error" "--clang-tidy" "--enable-config"))
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;; Optionally, set the location of clangd -- See notes below for options.
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(setq lsp-clangd-binary-path "/usr/bin/clangd"))
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```
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### clangd
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There are a few different ways to specify which clangd to use:
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- By default, without configuration `lsp-mode` will try to find and use your system `clangd`. This is the easiest solution, but your system clangd might be out of date.
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- You can manually specify any `clangd` binary with `lsp-clangd-binary-path`, as shown in the use-package example above.
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- You can have `lsp-mode` manage your `clangd` installation with emacs' `lsp-install-server`. This will install a `clangd` binary for you.
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- You can build the LLVM toolchain, including `clangd`, from Serenity's repository. This is an advanced option that is not currently documented.
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### clang-format
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There are multiple packages to handle auto formatting with
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`clang-format`, within emacs. Choose what works best for your setup:
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- [format-all-mode](https://github.com/lassik/emacs-format-all-the-code)
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- [clang-format-plus](https://github.com/SavchenkoValeriy/emacs-clang-format-plus)
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Alternatively, this can be done without additional packages, using `lsp-mode`.
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You can use the following `.dir-locals.el` file placed in the project root:
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```lisp
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((c++-mode
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(eval add-hook 'before-save-hook #'lsp-format-buffer nil t)))
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```
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