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6009c2b838
And ignore `treesit-major-mode-remap-alist`, because they could interfere with our UX improvements.
72 lines
2.9 KiB
EmacsLisp
72 lines
2.9 KiB
EmacsLisp
;;; tools/tree-sitter/autoload/compat-30.el -*- lexical-binding: t; -*-
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;;;###if (and (fboundp 'treesit-available-p) (version< emacs-version "31.1"))
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;;
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;; Backported from 31.1
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;;
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;;; Code:
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(autoload 'treesit-ready-p "treesit")
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;;;###autoload
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(defcustom treesit-auto-install-grammar 'ask
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"Whether to install tree-sitter language grammar libraries when needed.
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This controls whether Emacs will install missing grammar libraries
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when they are needed by some tree-sitter based mode.
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If `ask', ask for confirmation before installing the required grammar library.
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If `always', install the grammar library without asking.
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If nil or `never' or anything else, don't install the grammar library
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even while visiting a file in the mode that requires such grammar; this
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might display a warning and/or fail to turn on the mode."
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:type '(choice (const :tag "Never install grammar libraries" never)
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(const :tag "Always automatically install grammar libraries"
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always)
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(const :tag "Ask whether to install missing grammar libraries"
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ask))
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:version "31.1"
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:group 'treesit)
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;;;###autoload
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(defun treesit-ensure-installed (lang)
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"Ensure that the grammar library for the language LANG is installed.
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The option `treesit-auto-install-grammar' defines whether to install
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the grammar library if it's unavailable."
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(or (treesit-ready-p lang t)
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(when (or (eq treesit-auto-install-grammar 'always)
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(and (eq treesit-auto-install-grammar 'ask)
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(y-or-n-p (format "\
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Tree-sitter grammar for `%s' is missing; install it?"
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lang))))
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(treesit-install-language-grammar lang)
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;; Check that the grammar was installed successfully
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(treesit-ready-p lang))))
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;;; Introduced in later commits of 31.X
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;;;###autoload
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(unless (boundp 'treesit-major-mode-remap-alist)
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(defvar treesit-major-mode-remap-alist nil))
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;;;###autoload
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(defcustom treesit-enabled-modes nil
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"Specify what treesit modes to enable by default.
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The value can be either a list of ts-modes to enable,
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or t to enable all ts-modes."
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:type `(choice
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(const :tag "Disable all automatic associations" nil)
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(const :tag "Enable all available ts-modes" t)
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(set :tag "List of enabled ts-modes"
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,@(when (treesit-available-p)
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(sort (mapcar (lambda (m) `(function-item ,m))
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(seq-uniq (mapcar #'cdr treesit-major-mode-remap-alist)))))))
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:initialize #'custom-initialize-default
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:set (lambda (sym val)
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(set-default sym val)
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(when (treesit-available-p)
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(dolist (m treesit-major-mode-remap-alist)
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(setq major-mode-remap-alist
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(if (or (eq val t) (memq (cdr m) val))
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(cons m major-mode-remap-alist)
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(delete m major-mode-remap-alist))))))
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:version "31.1")
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;;; compat-30.el ends here
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