Prior to this, (after! (a b) ...) would expand to (after! b (after! a ...)) After this, it expands to (after! a (after! b ...)) This fixes load order issues with packages whose deferred configs are nested, such as org and ob-ditaa. Ref https://www.reddit.com/r/emacs/comments/pp3sye/hd311nz
641 lines
25 KiB
EmacsLisp
641 lines
25 KiB
EmacsLisp
;;; core-lib.el -*- lexical-binding: t; -*-
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;;
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;;; Helpers
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(defun doom--resolve-hook-forms (hooks)
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"Converts a list of modes into a list of hook symbols.
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If a mode is quoted, it is left as is. If the entire HOOKS list is quoted, the
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list is returned as-is."
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(declare (pure t) (side-effect-free t))
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(let ((hook-list (doom-enlist (doom-unquote hooks))))
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(if (eq (car-safe hooks) 'quote)
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hook-list
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(cl-loop for hook in hook-list
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if (eq (car-safe hook) 'quote)
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collect (cadr hook)
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else collect (intern (format "%s-hook" (symbol-name hook)))))))
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(defun doom--setq-hook-fns (hooks rest &optional singles)
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(unless (or singles (= 0 (% (length rest) 2)))
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(signal 'wrong-number-of-arguments (list #'evenp (length rest))))
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(cl-loop with vars = (let ((args rest)
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vars)
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(while args
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(push (if singles
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(list (pop args))
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(cons (pop args) (pop args)))
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vars))
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(nreverse vars))
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for hook in (doom--resolve-hook-forms hooks)
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for mode = (string-remove-suffix "-hook" (symbol-name hook))
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append
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(cl-loop for (var . val) in vars
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collect
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(list var val hook
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(intern (format "doom--setq-%s-for-%s-h"
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var mode))))))
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;;
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;;; Public library
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(defun doom-unquote (exp)
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"Return EXP unquoted."
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(declare (pure t) (side-effect-free t))
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(while (memq (car-safe exp) '(quote function))
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(setq exp (cadr exp)))
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exp)
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(defun doom-enlist (exp)
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"Return EXP wrapped in a list, or as-is if already a list."
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(declare (pure t) (side-effect-free t))
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(if (listp exp) exp (list exp)))
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(defun doom-keyword-intern (str)
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"Converts STR (a string) into a keyword (`keywordp')."
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(declare (pure t) (side-effect-free t))
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(cl-check-type str string)
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(intern (concat ":" str)))
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(defun doom-keyword-name (keyword)
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"Returns the string name of KEYWORD (`keywordp') minus the leading colon."
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(declare (pure t) (side-effect-free t))
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(cl-check-type keyword keyword)
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(substring (symbol-name keyword) 1))
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(defmacro doom-log (format-string &rest args)
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"Log to *Messages* if `doom-debug-p' is on.
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Does not display text in echo area, but still logs to *Messages*. Accepts the
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same arguments as `message'."
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`(when doom-debug-p
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(let ((inhibit-message (active-minibuffer-window)))
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(message
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,(concat (propertize "DOOM " 'face 'font-lock-comment-face)
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(when (bound-and-true-p doom--current-module)
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(propertize
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(format "[%s/%s] "
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(doom-keyword-name (car doom--current-module))
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(cdr doom--current-module))
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'face 'warning))
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format-string)
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,@args))))
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(defalias 'doom-partial #'apply-partially)
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(defun doom-rpartial (fn &rest args)
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"Return a partial application of FUN to right-hand ARGS.
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ARGS is a list of the last N arguments to pass to FUN. The result is a new
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function which does the same as FUN, except that the last N arguments are fixed
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at the values with which this function was called."
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(declare (side-effect-free t))
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(lambda (&rest pre-args)
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(apply fn (append pre-args args))))
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(defun doom-lookup-key (keys &rest keymaps)
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"Like `lookup-key', but search active keymaps if KEYMAP is omitted."
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(if keymaps
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(cl-some (doom-rpartial #'lookup-key keys) keymaps)
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(cl-loop for keymap
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in (append (cl-loop for alist in emulation-mode-map-alists
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append (mapcar #'cdr
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(if (symbolp alist)
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(if (boundp alist) (symbol-value alist))
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alist)))
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(list (current-local-map))
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(mapcar #'cdr minor-mode-overriding-map-alist)
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(mapcar #'cdr minor-mode-map-alist)
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(list (current-global-map)))
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if (keymapp keymap)
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if (lookup-key keymap keys)
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return it)))
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;;
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;;; Sugars
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(defun dir! ()
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"Returns the directory of the emacs lisp file this macro is called from."
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(when-let (path (file!))
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(directory-file-name (file-name-directory path))))
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(defun file! ()
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"Return the emacs lisp file this macro is called from."
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(cond ((bound-and-true-p byte-compile-current-file))
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(load-file-name)
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((stringp (car-safe current-load-list))
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(car current-load-list))
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(buffer-file-name)
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((error "Cannot get this file-path"))))
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(defmacro letenv! (envvars &rest body)
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"Lexically bind ENVVARS in BODY, like `let' but for `process-environment'."
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(declare (indent 1))
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`(let ((process-environment (copy-sequence process-environment)))
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(dolist (var (list ,@(cl-loop for (var val) in envvars
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collect `(cons ,var ,val))))
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(setenv (car var) (cdr var)))
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,@body))
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(defmacro letf! (bindings &rest body)
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"Temporarily rebind function and macros in BODY.
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Intended as a simpler version of `cl-letf' and `cl-macrolet'.
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BINDINGS is either a) a list of, or a single, `defun' or `defmacro'-ish form, or
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b) a list of (PLACE VALUE) bindings as `cl-letf*' would accept.
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TYPE is either `defun' or `defmacro'. NAME is the name of the function. If an
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original definition for NAME exists, it can be accessed as a lexical variable by
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the same name, for use with `funcall' or `apply'. ARGLIST and BODY are as in
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`defun'.
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\(fn ((TYPE NAME ARGLIST &rest BODY) ...) BODY...)"
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(declare (indent defun))
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(setq body (macroexp-progn body))
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(when (memq (car bindings) '(defun defmacro))
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(setq bindings (list bindings)))
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(dolist (binding (reverse bindings) (macroexpand body))
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(let ((type (car binding))
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(rest (cdr binding)))
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(setq
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body (pcase type
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(`defmacro `(cl-macrolet ((,@rest)) ,body))
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(`defun `(cl-letf* ((,(car rest) (symbol-function #',(car rest)))
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((symbol-function #',(car rest))
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(lambda ,(cadr rest) ,@(cddr rest))))
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(ignore ,(car rest))
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,body))
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(_
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(when (eq (car-safe type) 'function)
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(setq type (list 'symbol-function type)))
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(list 'cl-letf (list (cons type rest)) body)))))))
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(defmacro quiet! (&rest forms)
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"Run FORMS without generating any output.
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This silences calls to `message', `load', `write-region' and anything that
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writes to `standard-output'. In interactive sessions this won't suppress writing
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to *Messages*, only inhibit output in the echo area."
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`(if doom-debug-p
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(progn ,@forms)
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,(if doom-interactive-p
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`(let ((inhibit-message t)
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(save-silently t))
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(prog1 ,@forms (message "")))
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`(letf! ((standard-output (lambda (&rest _)))
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(defun message (&rest _))
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(defun load (file &optional noerror nomessage nosuffix must-suffix)
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(funcall load file noerror t nosuffix must-suffix))
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(defun write-region (start end filename &optional append visit lockname mustbenew)
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(unless visit (setq visit 'no-message))
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(funcall write-region start end filename append visit lockname mustbenew)))
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,@forms))))
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(defmacro eval-if! (cond then &rest body)
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"Expands to THEN if COND is non-nil, to BODY otherwise.
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COND is checked at compile/expansion time, allowing BODY to be omitted entirely
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when the elisp is byte-compiled. Use this for forms that contain expensive
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macros that could safely be removed at compile time."
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(declare (indent 2))
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(if (eval cond)
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then
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(macroexp-progn body)))
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(defmacro eval-when! (cond &rest body)
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"Expands to BODY if CONDITION is non-nil at compile/expansion time.
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See `eval-if!' for details on this macro's purpose."
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(declare (indent 1))
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(when (eval cond)
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(macroexp-progn body)))
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;;; Closure factories
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(defmacro fn! (arglist &rest body)
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"Returns (cl-function (lambda ARGLIST BODY...))
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The closure is wrapped in `cl-function', meaning ARGLIST will accept anything
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`cl-defun' will. Implicitly adds `&allow-other-keys' if `&key' is present in
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ARGLIST."
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(declare (indent defun) (doc-string 1) (pure t) (side-effect-free t))
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;; Don't complain about undeclared keys.
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(when (memq '&key arglist)
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(if (memq '&aux arglist)
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(let (newarglist arg)
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(while arglist
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(setq arg (pop arglist))
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(when (eq arg '&aux)
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(push '&allow-other-keys newarglist))
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(push arg newarglist))
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(setq arglist (nreverse newarglist)))
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(setq arglist (append arglist (list '&allow-other-keys)))))
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`(cl-function (lambda ,arglist ,@body)))
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(defmacro cmd! (&rest body)
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"Returns (lambda () (interactive) ,@body)
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A factory for quickly producing interaction commands, particularly for keybinds
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or aliases."
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(declare (doc-string 1) (pure t) (side-effect-free t))
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`(lambda (&rest _) (interactive) ,@body))
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(defmacro cmd!! (command &optional prefix-arg &rest args)
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"Returns a closure that interactively calls COMMAND with ARGS and PREFIX-ARG.
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Like `cmd!', but allows you to change `current-prefix-arg' or pass arguments to
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COMMAND. This macro is meant to be used as a target for keybinds (e.g. with
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`define-key' or `map!')."
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(declare (doc-string 1) (pure t) (side-effect-free t))
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`(lambda (arg &rest _) (interactive "P")
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(let ((current-prefix-arg (or ,prefix-arg arg)))
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(,(if args
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'funcall-interactively
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'call-interactively)
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,command ,@args))))
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(defmacro cmds! (&rest branches)
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"Returns a dispatcher that runs the a command in BRANCHES.
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Meant to be used as a target for keybinds (e.g. with `define-key' or `map!').
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BRANCHES is a flat list of CONDITION COMMAND pairs. CONDITION is a lisp form
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that is evaluated when (and each time) the dispatcher is invoked. If it returns
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non-nil, COMMAND is invoked, otherwise it falls through to the next pair.
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The last element of BRANCHES can be a COMMANd with no CONDITION. This acts as
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the fallback if all other conditions fail.
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Otherwise, Emacs will fall through the keybind and search the next keymap for a
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keybind (as if this keybind never existed).
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See `general-key-dispatch' for what other arguments it accepts in BRANCHES."
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(declare (doc-string 1))
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(let ((docstring (if (stringp (car branches)) (pop branches) ""))
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fallback)
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(when (cl-oddp (length branches))
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(setq fallback (car (last branches))
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branches (butlast branches)))
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(let ((defs (cl-loop for (key value) on branches by 'cddr
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unless (keywordp key)
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collect (list key value))))
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`'(menu-item
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,(or docstring "") nil
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:filter (lambda (&optional _)
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(let (it)
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(cond ,@(mapcar (lambda (pred-def)
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`((setq it ,(car pred-def))
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,(cadr pred-def)))
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defs)
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(t ,fallback))))))))
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(defalias 'kbd! 'general-simulate-key)
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;; For backwards compatibility
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(defalias 'λ! 'cmd!)
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(defalias 'λ!! 'cmd!!)
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;; DEPRECATED These have been superseded by `cmd!' and `cmd!!'
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(define-obsolete-function-alias 'lambda! 'cmd! "3.0.0")
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(define-obsolete-function-alias 'lambda!! 'cmd!! "3.0.0")
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;;; Mutation
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(defmacro appendq! (sym &rest lists)
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"Append LISTS to SYM in place."
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`(setq ,sym (append ,sym ,@lists)))
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(defmacro setq! (&rest settings)
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"A stripped-down `customize-set-variable' with the syntax of `setq'.
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This can be used as a drop-in replacement for `setq'. Particularly when you know
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a variable has a custom setter (a :set property in its `defcustom' declaration).
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This triggers setters. `setq' does not."
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(macroexp-progn
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(cl-loop for (var val) on settings by 'cddr
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collect `(funcall (or (get ',var 'custom-set) #'set)
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',var ,val))))
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(defmacro delq! (elt list &optional fetcher)
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"`delq' ELT from LIST in-place.
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If FETCHER is a function, ELT is used as the key in LIST (an alist)."
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`(setq ,list
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(delq ,(if fetcher
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`(funcall ,fetcher ,elt ,list)
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elt)
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,list)))
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(defmacro pushnew! (place &rest values)
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"Push VALUES sequentially into PLACE, if they aren't already present.
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This is a variadic `cl-pushnew'."
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(let ((var (make-symbol "result")))
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`(dolist (,var (list ,@values) (with-no-warnings ,place))
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(cl-pushnew ,var ,place :test #'equal))))
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(defmacro prependq! (sym &rest lists)
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"Prepend LISTS to SYM in place."
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`(setq ,sym (append ,@lists ,sym)))
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;;; Loading
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(defmacro add-load-path! (&rest dirs)
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"Add DIRS to `load-path', relative to the current file.
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The current file is the file from which `add-to-load-path!' is used."
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`(let ((default-directory ,(dir!))
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file-name-handler-alist)
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(dolist (dir (list ,@dirs))
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(cl-pushnew (expand-file-name dir) load-path :test #'string=))))
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(defmacro after! (package &rest body)
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"Evaluate BODY after PACKAGE have loaded.
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PACKAGE is a symbol or list of them. These are package names, not modes,
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functions or variables. It can be:
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- An unquoted package symbol (the name of a package)
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(after! helm BODY...)
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- An unquoted list of package symbols (i.e. BODY is evaluated once both magit
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and git-gutter have loaded)
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(after! (magit git-gutter) BODY...)
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- An unquoted, nested list of compound package lists, using any combination of
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:or/:any and :and/:all
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(after! (:or package-a package-b ...) BODY...)
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(after! (:and package-a package-b ...) BODY...)
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(after! (:and package-a (:or package-b package-c) ...) BODY...)
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Without :or/:any/:and/:all, :and/:all are implied.
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This is a wrapper around `eval-after-load' that:
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1. Suppresses warnings for disabled packages at compile-time
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2. No-ops for package that are disabled by the user (via `package!')
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3. Supports compound package statements (see below)
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4. Prevents eager expansion pulling in autoloaded macros all at once"
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(declare (indent defun) (debug t))
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(if (symbolp package)
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(unless (memq package (bound-and-true-p doom-disabled-packages))
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(list (if (or (not (bound-and-true-p byte-compile-current-file))
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(require package nil 'noerror))
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#'progn
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#'with-no-warnings)
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;; We intentionally avoid `with-eval-after-load' to prevent eager
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;; macro expansion from pulling (or failing to pull) in autoloaded
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;; macros/packages.
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`(eval-after-load ',package ',(macroexp-progn body))))
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(let ((p (car package)))
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(cond ((memq p '(:or :any))
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(macroexp-progn
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(cl-loop for next in (cdr package)
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collect `(after! ,next ,@body))))
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((memq p '(:and :all))
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(dolist (next (reverse (cdr package)) (car body))
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(setq body `((after! ,next ,@body)))))
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(`(after! (:and ,@package) ,@body))))))
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(defun doom--handle-load-error (e target path)
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(let* ((source (file-name-sans-extension target))
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(err (cond ((not (featurep 'core))
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(cons 'error (file-name-directory path)))
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((file-in-directory-p source doom-core-dir)
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(cons 'doom-error doom-core-dir))
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((file-in-directory-p source doom-private-dir)
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(cons 'doom-private-error doom-private-dir))
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((cons 'doom-module-error doom-emacs-dir)))))
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(signal (car err)
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(list (file-relative-name
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(concat source ".el")
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(cdr err))
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e))))
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(defmacro load! (filename &optional path noerror)
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"Load a file relative to the current executing file (`load-file-name').
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FILENAME is either a file path string or a form that should evaluate to such a
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string at run time. PATH is where to look for the file (a string representing a
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directory path). If omitted, the lookup is relative to either `load-file-name',
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`byte-compile-current-file' or `buffer-file-name' (checked in that order).
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If NOERROR is non-nil, don't throw an error if the file doesn't exist."
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(let* ((path (or path
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(dir!)
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(error "Could not detect path to look for '%s' in"
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filename)))
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(file (if path
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`(expand-file-name ,filename ,path)
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filename)))
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`(condition-case-unless-debug e
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(let (file-name-handler-alist)
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(load ,file ,noerror 'nomessage))
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(doom-error (signal (car e) (cdr e)))
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(error (doom--handle-load-error e ,file ,path)))))
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(defmacro defer-until! (condition &rest body)
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"Run BODY when CONDITION is true (checks on `after-load-functions'). Meant to
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serve as a predicated alternative to `after!'."
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(declare (indent defun) (debug t))
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`(if ,condition
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(progn ,@body)
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,(let ((fn (intern (format "doom--delay-form-%s-h" (sxhash (cons condition body))))))
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`(progn
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(fset ',fn (lambda (&rest args)
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(when ,(or condition t)
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(remove-hook 'after-load-functions #',fn)
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(unintern ',fn nil)
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(ignore args)
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,@body)))
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(put ',fn 'permanent-local-hook t)
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(add-hook 'after-load-functions #',fn)))))
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(defmacro defer-feature! (feature &rest fns)
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"Pretend FEATURE hasn't been loaded yet, until FEATURE-hook or FN runs.
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Some packages (like `elisp-mode' and `lisp-mode') are loaded immediately at
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startup, which will prematurely trigger `after!' (and `with-eval-after-load')
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blocks. To get around this we make Emacs believe FEATURE hasn't been loaded yet,
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then wait until FEATURE-hook (or MODE-hook, if FN is provided) is triggered to
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reverse this and trigger `after!' blocks at a more reasonable time."
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(let ((advice-fn (intern (format "doom--defer-feature-%s-a" feature))))
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`(progn
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(delq! ',feature features)
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(defadvice! ,advice-fn (&rest _)
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:before ',fns
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;; Some plugins (like yasnippet) will invoke a fn early to parse
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;; code, which would prematurely trigger this. In those cases, well
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;; behaved plugins will use `delay-mode-hooks', which we can check for:
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(unless delay-mode-hooks
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;; ...Otherwise, announce to the world this package has been loaded,
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;; so `after!' handlers can react.
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(provide ',feature)
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(dolist (fn ',fns)
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(advice-remove fn #',advice-fn)))))))
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;;; Hooks
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(defvar doom--transient-counter 0)
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(defmacro add-transient-hook! (hook-or-function &rest forms)
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"Attaches a self-removing function to HOOK-OR-FUNCTION.
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FORMS are evaluated once, when that function/hook is first invoked, then never
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again.
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HOOK-OR-FUNCTION can be a quoted hook or a sharp-quoted function (which will be
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advised)."
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(declare (indent 1))
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(let ((append (if (eq (car forms) :after) (pop forms)))
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;; Avoid `make-symbol' and `gensym' here because an interned symbol is
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;; easier to debug in backtraces (and is visible to `describe-function')
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(fn (intern (format "doom--transient-%d-h" (cl-incf doom--transient-counter)))))
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`(let ((sym ,hook-or-function))
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(defun ,fn (&rest _)
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,(format "Transient hook for %S" (doom-unquote hook-or-function))
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,@forms
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(let ((sym ,hook-or-function))
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(cond ((functionp sym) (advice-remove sym #',fn))
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((symbolp sym) (remove-hook sym #',fn))))
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(unintern ',fn nil))
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(cond ((functionp sym)
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(advice-add ,hook-or-function ,(if append :after :before) #',fn))
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((symbolp sym)
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(put ',fn 'permanent-local-hook t)
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(add-hook sym #',fn ,append))))))
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(defmacro add-hook! (hooks &rest rest)
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"A convenience macro for adding N functions to M hooks.
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This macro accepts, in order:
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1. The mode(s) or hook(s) to add to. This is either an unquoted mode, an
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unquoted list of modes, a quoted hook variable or a quoted list of hook
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variables.
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2. Optional properties :local, :append, and/or :depth [N], which will make the
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hook buffer-local or append to the list of hooks (respectively),
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3. The function(s) to be added: this can be one function, a quoted list
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thereof, a list of `defun's, or body forms (implicitly wrapped in a
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lambda).
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\(fn HOOKS [:append :local] FUNCTIONS)"
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(declare (indent (lambda (indent-point state)
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(goto-char indent-point)
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(when (looking-at-p "\\s-*(")
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(lisp-indent-defform state indent-point))))
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(debug t))
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(let* ((hook-forms (doom--resolve-hook-forms hooks))
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(func-forms ())
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(defn-forms ())
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append-p
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local-p
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remove-p
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depth
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forms)
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(while (keywordp (car rest))
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(pcase (pop rest)
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(:append (setq append-p t))
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(:depth (setq depth (pop rest)))
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(:local (setq local-p t))
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(:remove (setq remove-p t))))
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(let ((first (car-safe (car rest))))
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(cond ((null first)
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(setq func-forms rest))
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((eq first 'defun)
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(setq func-forms (mapcar #'cadr rest)
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defn-forms rest))
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((memq first '(quote function))
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(setq func-forms
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|
(if (cdr rest)
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(mapcar #'doom-unquote rest)
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(doom-enlist (doom-unquote (car rest))))))
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((setq func-forms (list `(lambda (&rest _) ,@rest)))))
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(dolist (hook hook-forms)
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(dolist (func func-forms)
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(push (if remove-p
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|
`(remove-hook ',hook #',func ,local-p)
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|
`(add-hook ',hook #',func ,(or depth append-p) ,local-p))
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|
forms)))
|
|
(macroexp-progn
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|
(append defn-forms
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|
(if append-p
|
|
(nreverse forms)
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|
forms))))))
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(defmacro remove-hook! (hooks &rest rest)
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|
"A convenience macro for removing N functions from M hooks.
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|
Takes the same arguments as `add-hook!'.
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If N and M = 1, there's no benefit to using this macro over `remove-hook'.
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|
|
|
\(fn HOOKS [:append :local] FUNCTIONS)"
|
|
(declare (indent defun) (debug t))
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`(add-hook! ,hooks :remove ,@rest))
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|
|
(defmacro setq-hook! (hooks &rest var-vals)
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|
"Sets buffer-local variables on HOOKS.
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\(fn HOOKS &rest [SYM VAL]...)"
|
|
(declare (indent 1))
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|
(macroexp-progn
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|
(cl-loop for (var val hook fn) in (doom--setq-hook-fns hooks var-vals)
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collect `(defun ,fn (&rest _)
|
|
,(format "%s = %s" var (pp-to-string val))
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|
(setq-local ,var ,val))
|
|
collect `(remove-hook ',hook #',fn) ; ensure set order
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|
collect `(add-hook ',hook #',fn))))
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|
|
(defmacro unsetq-hook! (hooks &rest vars)
|
|
"Unbind setq hooks on HOOKS for VARS.
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|
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|
\(fn HOOKS &rest [SYM VAL]...)"
|
|
(declare (indent 1))
|
|
(macroexp-progn
|
|
(cl-loop for (_var _val hook fn)
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|
in (doom--setq-hook-fns hooks vars 'singles)
|
|
collect `(remove-hook ',hook #',fn))))
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|
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|
;;; Definers
|
|
(defmacro defadvice! (symbol arglist &optional docstring &rest body)
|
|
"Define an advice called SYMBOL and add it to PLACES.
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|
|
|
ARGLIST is as in `defun'. WHERE is a keyword as passed to `advice-add', and
|
|
PLACE is the function to which to add the advice, like in `advice-add'.
|
|
DOCSTRING and BODY are as in `defun'.
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|
|
|
\(fn SYMBOL ARGLIST &optional DOCSTRING &rest [WHERE PLACES...] BODY\)"
|
|
(declare (doc-string 3) (indent defun))
|
|
(unless (stringp docstring)
|
|
(push docstring body)
|
|
(setq docstring nil))
|
|
(let (where-alist)
|
|
(while (keywordp (car body))
|
|
(push `(cons ,(pop body) (doom-enlist ,(pop body)))
|
|
where-alist))
|
|
`(progn
|
|
(defun ,symbol ,arglist ,docstring ,@body)
|
|
(dolist (targets (list ,@(nreverse where-alist)))
|
|
(dolist (target (cdr targets))
|
|
(advice-add target (car targets) #',symbol))))))
|
|
|
|
(defmacro undefadvice! (symbol _arglist &optional docstring &rest body)
|
|
"Undefine an advice called SYMBOL.
|
|
|
|
This has the same signature as `defadvice!' an exists as an easy undefiner when
|
|
testing advice (when combined with `rotate-text').
|
|
|
|
\(fn SYMBOL ARGLIST &optional DOCSTRING &rest [WHERE PLACES...] BODY\)"
|
|
(declare (doc-string 3) (indent defun))
|
|
(let (where-alist)
|
|
(unless (stringp docstring)
|
|
(push docstring body))
|
|
(while (keywordp (car body))
|
|
(push `(cons ,(pop body) (doom-enlist ,(pop body)))
|
|
where-alist))
|
|
`(dolist (targets (list ,@(nreverse where-alist)))
|
|
(dolist (target (cdr targets))
|
|
(advice-remove target #',symbol)))))
|
|
|
|
|
|
;;
|
|
;;; Backports
|
|
|
|
;; None at the moment!
|
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|
|
(provide 'core-lib)
|
|
;;; core-lib.el ends here
|