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neovim-flake/modules/plugins/languages/clang.nix
2024-08-24 17:48:20 +00:00

163 lines
4.6 KiB
Nix

{
config,
pkgs,
lib,
...
}: let
inherit (builtins) attrNames;
inherit (lib.lists) isList;
inherit (lib.strings) optionalString;
inherit (lib.options) mkEnableOption mkOption;
inherit (lib.types) bool enum package either listOf str nullOr;
inherit (lib.modules) mkIf mkMerge;
inherit (lib.nvim.lua) expToLua;
inherit (lib.nvim.types) mkGrammarOption;
inherit (lib.nvim.dag) entryAfter;
packageToCmd = package: defaultCmd:
if isList cfg.lsp.package
then expToLua cfg.lsp.package
else ''{ "${cfg.lsp.package}/bin/${defaultCmd}" }'';
cfg = config.vim.languages.clang;
defaultServer = "clangd";
servers = {
ccls = {
package = pkgs.ccls;
lspConfig = ''
lspconfig.ccls.setup{
capabilities = capabilities;
on_attach=default_on_attach;
cmd = ${packageToCmd cfg.lsp.package "ccls"};
${optionalString (cfg.lsp.opts != null) "init_options = ${cfg.lsp.opts}"}
}
'';
};
clangd = {
package = pkgs.clang-tools;
lspConfig = ''
local clangd_cap = capabilities
-- use same offsetEncoding as null-ls
clangd_cap.offsetEncoding = {"utf-16"}
lspconfig.clangd.setup{
capabilities = clangd_cap;
on_attach=default_on_attach;
cmd = ${packageToCmd cfg.lsp.package "clangd"};
${optionalString (cfg.lsp.opts != null) "init_options = ${cfg.lsp.opts}"}
}
'';
};
};
defaultDebugger = "lldb-vscode";
debuggers = {
lldb-vscode = {
package = pkgs.lldb;
dapConfig = ''
dap.adapters.lldb = {
type = 'executable',
command = '${cfg.dap.package}/bin/lldb-dap',
name = 'lldb'
}
dap.configurations.cpp = {
{
name = 'Launch',
type = 'lldb',
request = 'launch',
program = function()
return vim.fn.input('Path to executable: ', vim.fn.getcwd() .. '/', 'file')
end,
cwd = "''${workspaceFolder}",
stopOnEntry = false,
args = {},
},
}
dap.configurations.c = dap.configurations.cpp
'';
};
};
in {
options.vim.languages.clang = {
enable = mkEnableOption "C/C++ language support";
cHeader = mkOption {
description = ''
C syntax for headers. Can fix treesitter errors, see:
https://www.reddit.com/r/neovim/comments/orfpcd/question_does_the_c_parser_from_nvimtreesitter/
'';
type = bool;
default = false;
};
treesitter = {
enable = mkEnableOption "C/C++ treesitter" // {default = config.vim.languages.enableTreesitter;};
cPackage = mkGrammarOption pkgs "c";
cppPackage = mkGrammarOption pkgs "cpp";
};
lsp = {
enable = mkEnableOption "clang LSP support" // {default = config.vim.languages.enableLSP;};
server = mkOption {
description = "The clang LSP server to use";
type = enum (attrNames servers);
default = defaultServer;
};
package = mkOption {
description = "clang LSP server package, or the command to run as a list of strings";
example = ''[lib.getExe pkgs.jdt-language-server " - data " " ~/.cache/jdtls/workspace "]'';
type = either package (listOf str);
default = servers.${cfg.lsp.server}.package;
};
opts = mkOption {
description = "Options to pass to clang LSP server";
type = nullOr str;
default = null;
};
};
dap = {
enable = mkOption {
description = "Enable clang Debug Adapter";
type = bool;
default = config.vim.languages.enableDAP;
};
debugger = mkOption {
description = "clang debugger to use";
type = enum (attrNames debuggers);
default = defaultDebugger;
};
package = mkOption {
description = "clang debugger package.";
type = package;
default = debuggers.${cfg.dap.debugger}.package;
};
};
};
config = mkIf cfg.enable (mkMerge [
(mkIf cfg.cHeader {
vim.pluginRC.c-header = entryAfter ["basic"] "vim.g.c_syntax_for_h = 1";
})
(mkIf cfg.treesitter.enable {
vim.treesitter.enable = true;
vim.treesitter.grammars = [cfg.treesitter.cPackage cfg.treesitter.cppPackage];
})
(mkIf cfg.lsp.enable {
vim.lsp.lspconfig.enable = true;
vim.lsp.lspconfig.sources.clang-lsp = servers.${cfg.lsp.server}.lspConfig;
})
(mkIf cfg.dap.enable {
vim.debugger.nvim-dap.enable = true;
vim.debugger.nvim-dap.sources.clang-debugger = debuggers.${cfg.dap.debugger}.dapConfig;
})
]);
}