Lint maybe.el

This change had rippling implications.

emacs/.emacs.d/wpc/alist.el

@@ -135,7 +135,7 @@ Returns the first occurrence of K in XS since alists support multiple entries."
   "Apply F to the value stored at K in XS.
 If `K' is not in `XS', this function errors.  Use `alist/upsert' if you're
 interested in inserting a value when a key doesn't already exist."
-  (if (maybe/nil? (alist/get k xs))
+  (if (maybe-nil? (alist/get k xs))
       (error "Refusing to update: key does not exist in alist")
     (alist/set k (funcall f (alist/get k xs)) xs)))
 
@@ -183,11 +183,11 @@ Mutative variant of `alist/delete'."
 
 (defun alist/has-key? (k xs)
   "Return t if XS has a key `equal' to K."
-  (maybe/some? (assoc k xs)))
+  (maybe-some? (assoc k xs)))
 
 (defun alist/has-value? (v xs)
   "Return t if XS has a value of V."
-  (maybe/some? (rassoc v xs)))
+  (maybe-some? (rassoc v xs)))
 
 (defun alist/count (xs)
   "Return the number of entries in XS."

emacs/.emacs.d/wpc/buffer.el

@@ -90,7 +90,7 @@ This will ignore Emacs-generated buffers, like *Messages*.  It will also ignore
 
 (defun buffer/exists? (name)
   "Return t if buffer, NAME, exists."
-  (maybe/some? (buffer/find name)))
+  (maybe-some? (buffer/find name)))
 
 (defun buffer/new (name)
   "Return a newly created buffer NAME."
@@ -100,7 +100,7 @@ This will ignore Emacs-generated buffers, like *Messages*.  It will also ignore
   "Find or create buffer, NAME.
 Return a reference to that buffer."
   (let ((x (buffer/find name)))
-    (if (maybe/some? x)
+    (if (maybe-some? x)
         x
       (buffer/new name))))
 
@@ -163,7 +163,7 @@ This function ignores Emacs-generated buffers, i.e. the ones that look like
   (interactive)
   (let* ((xs (buffer/source-code-buffers))
          (candidate (list/get 1 xs)))
-    (prelude/assert (maybe/some? candidate))
+    (prelude/assert (maybe-some? candidate))
     (switch-to-buffer candidate)))
 
 (when buffer/install-kbds?

emacs/.emacs.d/wpc/constants.el

@@ -21,7 +21,7 @@
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
 (defconst constants/ci?
-  (maybe/some? (getenv "CI"))
+  (maybe-some? (getenv "CI"))
   "True when Emacs is running in CI.")
 
 (defconst constants/briefcase

emacs/.emacs.d/wpc/cycle.el

@@ -73,7 +73,7 @@
 (defun cycle/previous-focus (cycle)
   "Return the previously focused entry in CYCLE."
   (let ((i (cycle-previous-index cycle)))
-    (if (maybe/some? i)
+    (if (maybe-some? i)
         (nth i (cycle-xs cycle))
       nil)))
 
@@ -84,7 +84,7 @@
 This will error when previous-index is nil.  This function mutates the
 underlying struct."
   (let ((i (cycle-previous-index xs)))
-    (if (maybe/some? i)
+    (if (maybe-some? i)
         (progn
           (cycle/jump i xs)
           (cycle/current xs))
@@ -148,7 +148,7 @@ ITEM is the first item in XS that t for `equal'."
 
 (defun cycle/focused? (xs)
   "Return t if cycle XS has a non-nil value for current-index."
-  (maybe/some? (cycle-current-index xs)))
+  (maybe-some? (cycle-current-index xs)))
 
 (defun cycle/append (x xs)
   "Add X to the left of the focused element in XS.
@@ -196,7 +196,7 @@ If X is the currently focused value, after it's deleted, current-index will be
 
 (when cycle/enable-tests?
   (let ((xs (cycle/new 1 2 3)))
-    (prelude/assert (maybe/nil? (cycle/previous-focus xs)))
+    (prelude/assert (maybe-nil? (cycle/previous-focus xs)))
     (prelude/assert (= 1 (cycle/current xs)))
     (prelude/assert (= 2 (cycle/next xs)))
     (prelude/assert (= 1 (cycle/previous-focus xs)))

emacs/.emacs.d/wpc/fonts.el

@@ -86,7 +86,7 @@
 
 (defun fonts/set (font &optional size)
   "Change the font to `FONT' with option integer, SIZE, in pixels."
-  (if (maybe/some? size)
+  (if (maybe-some? size)
       (set-frame-font (string/format "%s %s" font size) nil t)
     (set-frame-font font nil t)))
 

emacs/.emacs.d/wpc/irc.el

@@ -59,7 +59,7 @@
   "Resolve an IRC server from a given CHANNEL."
   (let ((result (alist/find (lambda (k v) (cycle/contains? channel v))
                             server->channels)))
-    (prelude/assert (maybe/some? result))
+    (prelude/assert (maybe-some? result))
     result))
 
 (defun irc/channel->cycle (server->channels channel)

emacs/.emacs.d/wpc/laptop-battery.el

@@ -32,7 +32,7 @@
 
 (defun laptop-battery/available? ()
   "Return t if battery information is available."
-  (maybe/some? battery-status-function))
+  (maybe-some? battery-status-function))
 
 (defun laptop-battery/percentage ()
   "Return the current percentage of the battery."

emacs/.emacs.d/wpc/math.el

@@ -28,13 +28,13 @@
 (cl-defun math/triangle-of-power (&key base power result)
   ;; TODO: Assert two of three are set.
   (cond
-   ((maybe/somes? base power result)
+   ((maybe-somes? base power result)
     (error "All three arguments should not be set"))
-   ((maybe/somes? power result)
+   ((maybe-somes? power result)
     (message "power and result"))
-   ((maybe/somes? base result)
+   ((maybe-somes? base result)
     (log result base))
-   ((maybe/somes? base power)
+   ((maybe-somes? base power)
     (expt base power))
    (t
     (error "Two of the three arguments must be set"))))

emacs/.emacs.d/wpc/maybe.el

@@ -1,5 +1,9 @@
 ;;; maybe.el --- Library for dealing with nil values -*- lexical-binding: t -*-
+
 ;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+;; Homepage: https://user.git.corp.google.com/wpcarro/briefcase
 
 ;;; Commentary:
 ;; Inspired by Elm's Maybe library.
@@ -39,36 +43,36 @@
 ;; Constants
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
-(defvar maybe/test? t
+(defvar maybe--run-tests? t
   "When t, run the test suite defined herein.")
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; Library
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
-(defun maybe/nil? (x)
+(defun maybe-nil? (x)
   "Return t if X is nil."
   (eq nil x))
 
-(defun maybe/some? (x)
+(defun maybe-some? (x)
   "Return t when X is non-nil."
-  (not (maybe/nil? x)))
+  (not (maybe-nil? x)))
 
-(defun maybe/nils? (&rest xs)
+(defun maybe-nils? (&rest xs)
   "Return t if all XS are nil."
-  (list/all? #'maybe/nil? xs))
+  (list/all? #'maybe-nil? xs))
 
-(defun maybe/somes? (&rest xs)
+(defun maybe-somes? (&rest xs)
   "Return t if all XS are non-nil."
-  (list/all? #'maybe/some? xs))
+  (list/all? #'maybe-some? xs))
 
-(defun maybe/default (default x)
+(defun maybe-default (default x)
   "Return DEFAULT when X is nil."
-  (if (maybe/nil? x) default x))
+  (if (maybe-nil? x) default x))
 
-(defun maybe/map (f x)
+(defun maybe-map (f x)
   "Apply F to X if X is not nil."
-  (if (maybe/some? x)
+  (if (maybe-some? x)
       (funcall f x)
     x))
 
@@ -76,27 +80,27 @@
 ;; Tests
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
-(when maybe/test?
+(when maybe--run-tests?
   ;; nil?
-  (prelude/assert (maybe/nil? nil))
-  (prelude/refute (maybe/nil? t))
+  (prelude/assert (maybe-nil? nil))
+  (prelude/refute (maybe-nil? t))
   ;; some?
-  (prelude/assert (maybe/some? 10))
-  (prelude/refute (maybe/some? nil))
+  (prelude/assert (maybe-some? 10))
+  (prelude/refute (maybe-some? nil))
   ;; nils?
-  (prelude/assert (maybe/nils? nil nil nil nil))
-  (prelude/refute (maybe/nils? nil t nil t))
+  (prelude/assert (maybe-nils? nil nil nil nil))
+  (prelude/refute (maybe-nils? nil t nil t))
   ;; somes?
-  (prelude/assert (maybe/somes? t 10 '(1 2 3) "some"))
-  (prelude/refute (maybe/somes? t nil '(1 2 3) "some"))
+  (prelude/assert (maybe-somes? t 10 '(1 2 3) "some"))
+  (prelude/refute (maybe-somes? t nil '(1 2 3) "some"))
   ;; default
   (prelude/assert
-   (and (= 0 (maybe/default 5 0))
-        (= 5 (maybe/default 5 nil))))
+   (and (= 0 (maybe-default 5 0))
+        (= 5 (maybe-default 5 nil))))
   ;; map
   (prelude/assert
-   (and (= 2 (maybe/map #'1+ 1))
-        (eq nil (maybe/map #'1+ nil)))))
+   (and (= 2 (maybe-map #'1+ 1))
+        (eq nil (maybe-map #'1+ nil)))))
 
 (provide 'maybe)
 ;;; maybe.el ends here

emacs/.emacs.d/wpc/prelude.el

@@ -95,7 +95,7 @@ These are strict assertions and purposely do not rely on truthiness."
 (add-hook 'linum-mode-hook
           (lambda ()
             (setq linum/safe? t)
-            (when (maybe/some? linum/mru-color)
+            (when (maybe-some? linum/mru-color)
               (set-face-foreground 'linum linum/mru-color))))
 
 (defun prelude/set-line-number-color (color)
@@ -137,7 +137,7 @@ This is a wrapper around `start-process' that has an API that resembles
   "Return t if CLI tool NAME exists according to `exec-path'."
   (let ((file (locate-file name exec-path)))
     (require 'maybe)
-    (if (maybe/some? file)
+    (if (maybe-some? file)
         (f-exists? file)
       nil)))
 

emacs/.emacs.d/wpc/tree.el

@@ -69,7 +69,7 @@ Depth-first traversals have the advantage of typically consuming less memory
   (cl-labels ((do-reduce-depth
                (acc f node depth)
                (let ((acc-new (funcall f node acc depth)))
-                 (if (or (maybe/nil? node)
+                 (if (or (maybe-nil? node)
                          (tree-leaf? node))
                      acc-new
                    (list/reduce
@@ -98,7 +98,7 @@ Depth-first traversals have the advantage of typically consuming less memory
    (tree-reduce-depth
     '()
     (lambda (node acc depth)
-      (if (or (maybe/nil? node)
+      (if (or (maybe-nil? node)
               (tree-leaf? node))
           (list/cons depth acc)
         acc))
@@ -139,7 +139,7 @@ generating test data.  Warning this function can overflow the stack."
 
 (defun tree-leaf? (node)
   "Return t if NODE has no children."
-  (maybe/nil? (node-children node)))
+  (maybe-nil? (node-children node)))
 
 (defun tree-balanced? (n xs)
   "Return t if the tree, XS, is balanced.

emacs/.emacs.d/wpc/window.el

@@ -25,7 +25,7 @@
 (defun window-find (name)
   "Find a window by the NAME of the buffer it's hosting."
   (let ((buffer (get-buffer name)))
-    (if (maybe/some? buffer)
+    (if (maybe-some? buffer)
         (get-buffer-window buffer)
       nil)))