github.com/spotify/syslog-redirector-golang@v0.0.0-20140320174030-4859f03d829a/misc/emacs/go-mode.el (about) 1 ;;; go-mode.el --- Major mode for the Go programming language 2 3 ;; Copyright 2013 The Go Authors. All rights reserved. 4 ;; Use of this source code is governed by a BSD-style 5 ;; license that can be found in the LICENSE file. 6 7 (require 'cl) 8 (require 'etags) 9 (require 'ffap) 10 (require 'ring) 11 (require 'url) 12 13 ;; XEmacs compatibility guidelines 14 ;; - Minimum required version of XEmacs: 21.5.32 15 ;; - Feature that cannot be backported: POSIX character classes in 16 ;; regular expressions 17 ;; - Functions that could be backported but won't because 21.5.32 18 ;; covers them: plenty. 19 ;; - Features that are still partly broken: 20 ;; - godef will not work correctly if multibyte characters are 21 ;; being used 22 ;; - Fontification will not handle unicode correctly 23 ;; 24 ;; - Do not use \_< and \_> regexp delimiters directly; use 25 ;; go--regexp-enclose-in-symbol 26 ;; 27 ;; - The character `_` must not be a symbol constituent but a 28 ;; character constituent 29 ;; 30 ;; - Do not use process-lines 31 ;; 32 ;; - Use go--old-completion-list-style when using a plain list as the 33 ;; collection for completing-read 34 ;; 35 ;; - Use go--kill-whole-line instead of kill-whole-line (called 36 ;; kill-entire-line in XEmacs) 37 ;; 38 ;; - Use go--position-bytes instead of position-bytes 39 (defmacro go--xemacs-p () 40 `(featurep 'xemacs)) 41 42 (defalias 'go--kill-whole-line 43 (if (fboundp 'kill-whole-line) 44 #'kill-whole-line 45 #'kill-entire-line)) 46 47 ;; Delete the current line without putting it in the kill-ring. 48 (defun go--delete-whole-line (&optional arg) 49 ;; Emacs uses both kill-region and kill-new, Xemacs only uses 50 ;; kill-region. In both cases we turn them into operations that do 51 ;; not modify the kill ring. This solution does depend on the 52 ;; implementation of kill-line, but it's the only viable solution 53 ;; that does not require to write kill-line from scratch. 54 (flet ((kill-region (beg end) 55 (delete-region beg end)) 56 (kill-new (s) ())) 57 (go--kill-whole-line arg))) 58 59 ;; declare-function is an empty macro that only byte-compile cares 60 ;; about. Wrap in always false if to satisfy Emacsen without that 61 ;; macro. 62 (if nil 63 (declare-function go--position-bytes "go-mode" (point))) 64 ;; XEmacs unfortunately does not offer position-bytes. We can fall 65 ;; back to just using (point), but it will be incorrect as soon as 66 ;; multibyte characters are being used. 67 (if (fboundp 'position-bytes) 68 (defalias 'go--position-bytes #'position-bytes) 69 (defun go--position-bytes (point) point)) 70 71 (defun go--old-completion-list-style (list) 72 (mapcar (lambda (x) (cons x nil)) list)) 73 74 ;; GNU Emacs 24 has prog-mode, older GNU Emacs and XEmacs do not, so 75 ;; copy its definition for those. 76 (if (not (fboundp 'prog-mode)) 77 (define-derived-mode prog-mode fundamental-mode "Prog" 78 "Major mode for editing source code." 79 (set (make-local-variable 'require-final-newline) mode-require-final-newline) 80 (set (make-local-variable 'parse-sexp-ignore-comments) t) 81 (setq bidi-paragraph-direction 'left-to-right))) 82 83 (defun go--regexp-enclose-in-symbol (s) 84 ;; XEmacs does not support \_<, GNU Emacs does. In GNU Emacs we make 85 ;; extensive use of \_< to support unicode in identifiers. Until we 86 ;; come up with a better solution for XEmacs, this solution will 87 ;; break fontification in XEmacs for identifiers such as "typeµ". 88 ;; XEmacs will consider "type" a keyword, GNU Emacs won't. 89 90 (if (go--xemacs-p) 91 (concat "\\<" s "\\>") 92 (concat "\\_<" s "\\_>"))) 93 94 ;; Move up one level of parentheses. 95 (defun go-goto-opening-parenthesis (&optional legacy-unused) 96 ;; The old implementation of go-goto-opening-parenthesis had an 97 ;; optional argument to speed up the function. It didn't change the 98 ;; function's outcome. 99 100 ;; Silently fail if there's no matching opening parenthesis. 101 (condition-case nil 102 (backward-up-list) 103 (scan-error nil))) 104 105 106 (defconst go-dangling-operators-regexp "[^-]-\\|[^+]\\+\\|[/*&><.=|^]") 107 (defconst go-identifier-regexp "[[:word:][:multibyte:]]+") 108 (defconst go-label-regexp go-identifier-regexp) 109 (defconst go-type-regexp "[[:word:][:multibyte:]*]+") 110 (defconst go-func-regexp (concat (go--regexp-enclose-in-symbol "func") "\\s *\\(" go-identifier-regexp "\\)")) 111 (defconst go-func-meth-regexp (concat 112 (go--regexp-enclose-in-symbol "func") "\\s *\\(?:(\\s *" 113 "\\(" go-identifier-regexp "\\s +\\)?" go-type-regexp 114 "\\s *)\\s *\\)?\\(" 115 go-identifier-regexp 116 "\\)(")) 117 (defconst go-builtins 118 '("append" "cap" "close" "complex" "copy" 119 "delete" "imag" "len" "make" "new" 120 "panic" "print" "println" "real" "recover") 121 "All built-in functions in the Go language. Used for font locking.") 122 123 (defconst go-mode-keywords 124 '("break" "default" "func" "interface" "select" 125 "case" "defer" "go" "map" "struct" 126 "chan" "else" "goto" "package" "switch" 127 "const" "fallthrough" "if" "range" "type" 128 "continue" "for" "import" "return" "var") 129 "All keywords in the Go language. Used for font locking.") 130 131 (defconst go-constants '("nil" "true" "false" "iota")) 132 (defconst go-type-name-regexp (concat "\\(?:[*(]\\)*\\(?:" go-identifier-regexp "\\.\\)?\\(" go-identifier-regexp "\\)")) 133 134 (defvar go-dangling-cache) 135 (defvar go-godoc-history nil) 136 (defvar go--coverage-current-file-name) 137 138 (defgroup go nil 139 "Major mode for editing Go code" 140 :group 'languages) 141 142 (defgroup go-cover nil 143 "Options specific to `cover`" 144 :group 'go) 145 146 (defcustom go-fontify-function-calls t 147 "Fontify function and method calls if this is non-nil." 148 :type 'boolean 149 :group 'go) 150 151 (defcustom go-mode-hook nil 152 "Hook called by `go-mode'." 153 :type 'hook 154 :group 'go) 155 156 (defcustom go-command "go" 157 "The 'go' command. Some users have multiple Go development 158 trees and invoke the 'go' tool via a wrapper that sets GOROOT and 159 GOPATH based on the current directory. Such users should 160 customize this variable to point to the wrapper script." 161 :type 'string 162 :group 'go) 163 164 (defcustom gofmt-command "gofmt" 165 "The 'gofmt' command. Some users may replace this with 'goimports' 166 from https://github.com/bradfitz/goimports." 167 :type 'string 168 :group 'go) 169 170 (defface go-coverage-untracked 171 '((t (:foreground "#505050"))) 172 "Coverage color of untracked code." 173 :group 'go-cover) 174 175 (defface go-coverage-0 176 '((t (:foreground "#c00000"))) 177 "Coverage color for uncovered code." 178 :group 'go-cover) 179 (defface go-coverage-1 180 '((t (:foreground "#808080"))) 181 "Coverage color for covered code with weight 1." 182 :group 'go-cover) 183 (defface go-coverage-2 184 '((t (:foreground "#748c83"))) 185 "Coverage color for covered code with weight 2." 186 :group 'go-cover) 187 (defface go-coverage-3 188 '((t (:foreground "#689886"))) 189 "Coverage color for covered code with weight 3." 190 :group 'go-cover) 191 (defface go-coverage-4 192 '((t (:foreground "#5ca489"))) 193 "Coverage color for covered code with weight 4." 194 :group 'go-cover) 195 (defface go-coverage-5 196 '((t (:foreground "#50b08c"))) 197 "Coverage color for covered code with weight 5." 198 :group 'go-cover) 199 (defface go-coverage-6 200 '((t (:foreground "#44bc8f"))) 201 "Coverage color for covered code with weight 6." 202 :group 'go-cover) 203 (defface go-coverage-7 204 '((t (:foreground "#38c892"))) 205 "Coverage color for covered code with weight 7." 206 :group 'go-cover) 207 (defface go-coverage-8 208 '((t (:foreground "#2cd495"))) 209 "Coverage color for covered code with weight 8. 210 For mode=set, all covered lines will have this weight." 211 :group 'go-cover) 212 (defface go-coverage-9 213 '((t (:foreground "#20e098"))) 214 "Coverage color for covered code with weight 9." 215 :group 'go-cover) 216 (defface go-coverage-10 217 '((t (:foreground "#14ec9b"))) 218 "Coverage color for covered code with weight 10." 219 :group 'go-cover) 220 (defface go-coverage-covered 221 '((t (:foreground "#2cd495"))) 222 "Coverage color of covered code." 223 :group 'go-cover) 224 225 (defvar go-mode-syntax-table 226 (let ((st (make-syntax-table))) 227 (modify-syntax-entry ?+ "." st) 228 (modify-syntax-entry ?- "." st) 229 (modify-syntax-entry ?% "." st) 230 (modify-syntax-entry ?& "." st) 231 (modify-syntax-entry ?| "." st) 232 (modify-syntax-entry ?^ "." st) 233 (modify-syntax-entry ?! "." st) 234 (modify-syntax-entry ?= "." st) 235 (modify-syntax-entry ?< "." st) 236 (modify-syntax-entry ?> "." st) 237 (modify-syntax-entry ?/ (if (go--xemacs-p) ". 1456" ". 124b") st) 238 (modify-syntax-entry ?* ". 23" st) 239 (modify-syntax-entry ?\n "> b" st) 240 (modify-syntax-entry ?\" "\"" st) 241 (modify-syntax-entry ?\' "\"" st) 242 (modify-syntax-entry ?` "\"" st) 243 (modify-syntax-entry ?\\ "\\" st) 244 ;; It would be nicer to have _ as a symbol constituent, but that 245 ;; would trip up XEmacs, which does not support the \_< anchor 246 (modify-syntax-entry ?_ "w" st) 247 248 st) 249 "Syntax table for Go mode.") 250 251 (defun go--build-font-lock-keywords () 252 ;; we cannot use 'symbols in regexp-opt because emacs <24 doesn't 253 ;; understand that 254 (append 255 `((,(go--regexp-enclose-in-symbol (regexp-opt go-mode-keywords t)) . font-lock-keyword-face) 256 (,(go--regexp-enclose-in-symbol (regexp-opt go-builtins t)) . font-lock-builtin-face) 257 (,(go--regexp-enclose-in-symbol (regexp-opt go-constants t)) . font-lock-constant-face) 258 (,go-func-regexp 1 font-lock-function-name-face)) ;; function (not method) name 259 260 (if go-fontify-function-calls 261 `((,(concat "\\(" go-identifier-regexp "\\)[[:space:]]*(") 1 font-lock-function-name-face) ;; function call/method name 262 (,(concat "[^[:word:][:multibyte:]](\\(" go-identifier-regexp "\\))[[:space:]]*(") 1 font-lock-function-name-face)) ;; bracketed function call 263 `((,go-func-meth-regexp 1 font-lock-function-name-face))) ;; method name 264 265 `( 266 (,(concat (go--regexp-enclose-in-symbol "type") "[[:space:]]*\\([^[:space:]]+\\)") 1 font-lock-type-face) ;; types 267 (,(concat (go--regexp-enclose-in-symbol "type") "[[:space:]]*" go-identifier-regexp "[[:space:]]*" go-type-name-regexp) 1 font-lock-type-face) ;; types 268 (,(concat "[^[:word:][:multibyte:]]\\[\\([[:digit:]]+\\|\\.\\.\\.\\)?\\]" go-type-name-regexp) 2 font-lock-type-face) ;; Arrays/slices 269 (,(concat "\\(" go-identifier-regexp "\\)" "{") 1 font-lock-type-face) 270 (,(concat (go--regexp-enclose-in-symbol "map") "\\[[^]]+\\]" go-type-name-regexp) 1 font-lock-type-face) ;; map value type 271 (,(concat (go--regexp-enclose-in-symbol "map") "\\[" go-type-name-regexp) 1 font-lock-type-face) ;; map key type 272 (,(concat (go--regexp-enclose-in-symbol "chan") "[[:space:]]*\\(?:<-\\)?" go-type-name-regexp) 1 font-lock-type-face) ;; channel type 273 (,(concat (go--regexp-enclose-in-symbol "\\(?:new\\|make\\)") "\\(?:[[:space:]]\\|)\\)*(" go-type-name-regexp) 1 font-lock-type-face) ;; new/make type 274 ;; TODO do we actually need this one or isn't it just a function call? 275 (,(concat "\\.\\s *(" go-type-name-regexp) 1 font-lock-type-face) ;; Type conversion 276 (,(concat (go--regexp-enclose-in-symbol "func") "[[:space:]]+(" go-identifier-regexp "[[:space:]]+" go-type-name-regexp ")") 1 font-lock-type-face) ;; Method receiver 277 (,(concat (go--regexp-enclose-in-symbol "func") "[[:space:]]+(" go-type-name-regexp ")") 1 font-lock-type-face) ;; Method receiver without variable name 278 ;; Like the original go-mode this also marks compound literal 279 ;; fields. There, it was marked as to fix, but I grew quite 280 ;; accustomed to it, so it'll stay for now. 281 (,(concat "^[[:space:]]*\\(" go-label-regexp "\\)[[:space:]]*:\\(\\S.\\|$\\)") 1 font-lock-constant-face) ;; Labels and compound literal fields 282 (,(concat (go--regexp-enclose-in-symbol "\\(goto\\|break\\|continue\\)") "[[:space:]]*\\(" go-label-regexp "\\)") 2 font-lock-constant-face)))) ;; labels in goto/break/continue 283 284 (defvar go-mode-map 285 (let ((m (make-sparse-keymap))) 286 (define-key m "}" #'go-mode-insert-and-indent) 287 (define-key m ")" #'go-mode-insert-and-indent) 288 (define-key m "," #'go-mode-insert-and-indent) 289 (define-key m ":" #'go-mode-insert-and-indent) 290 (define-key m "=" #'go-mode-insert-and-indent) 291 (define-key m (kbd "C-c C-a") #'go-import-add) 292 (define-key m (kbd "C-c C-j") #'godef-jump) 293 (define-key m (kbd "C-x 4 C-c C-j") #'godef-jump-other-window) 294 (define-key m (kbd "C-c C-d") #'godef-describe) 295 m) 296 "Keymap used by Go mode to implement electric keys.") 297 298 (defun go-mode-insert-and-indent (key) 299 "Invoke the global binding of KEY, then reindent the line." 300 301 (interactive (list (this-command-keys))) 302 (call-interactively (lookup-key (current-global-map) key)) 303 (indent-according-to-mode)) 304 305 (defmacro go-paren-level () 306 `(car (syntax-ppss))) 307 308 (defmacro go-in-string-or-comment-p () 309 `(nth 8 (syntax-ppss))) 310 311 (defmacro go-in-string-p () 312 `(nth 3 (syntax-ppss))) 313 314 (defmacro go-in-comment-p () 315 `(nth 4 (syntax-ppss))) 316 317 (defmacro go-goto-beginning-of-string-or-comment () 318 `(goto-char (nth 8 (syntax-ppss)))) 319 320 (defun go--backward-irrelevant (&optional stop-at-string) 321 "Skips backwards over any characters that are irrelevant for 322 indentation and related tasks. 323 324 It skips over whitespace, comments, cases and labels and, if 325 STOP-AT-STRING is not true, over strings." 326 327 (let (pos (start-pos (point))) 328 (skip-chars-backward "\n\s\t") 329 (if (and (save-excursion (beginning-of-line) (go-in-string-p)) (looking-back "`") (not stop-at-string)) 330 (backward-char)) 331 (if (and (go-in-string-p) (not stop-at-string)) 332 (go-goto-beginning-of-string-or-comment)) 333 (if (looking-back "\\*/") 334 (backward-char)) 335 (if (go-in-comment-p) 336 (go-goto-beginning-of-string-or-comment)) 337 (setq pos (point)) 338 (beginning-of-line) 339 (if (or (looking-at (concat "^" go-label-regexp ":")) (looking-at "^[[:space:]]*\\(case .+\\|default\\):")) 340 (end-of-line 0) 341 (goto-char pos)) 342 (if (/= start-pos (point)) 343 (go--backward-irrelevant stop-at-string)) 344 (/= start-pos (point)))) 345 346 (defun go--buffer-narrowed-p () 347 "Return non-nil if the current buffer is narrowed." 348 (/= (buffer-size) 349 (- (point-max) 350 (point-min)))) 351 352 (defun go-previous-line-has-dangling-op-p () 353 "Returns non-nil if the current line is a continuation line." 354 (let* ((cur-line (line-number-at-pos)) 355 (val (gethash cur-line go-dangling-cache 'nope))) 356 (if (or (go--buffer-narrowed-p) (equal val 'nope)) 357 (save-excursion 358 (beginning-of-line) 359 (go--backward-irrelevant t) 360 (setq val (looking-back go-dangling-operators-regexp)) 361 (if (not (go--buffer-narrowed-p)) 362 (puthash cur-line val go-dangling-cache)))) 363 val)) 364 365 (defun go--at-function-definition () 366 "Return non-nil if point is on the opening curly brace of a 367 function definition. 368 369 We do this by first calling (beginning-of-defun), which will take 370 us to the start of *some* function. We then look for the opening 371 curly brace of that function and compare its position against the 372 curly brace we are checking. If they match, we return non-nil." 373 (if (= (char-after) ?\{) 374 (save-excursion 375 (let ((old-point (point)) 376 start-nesting) 377 (beginning-of-defun) 378 (when (looking-at "func ") 379 (setq start-nesting (go-paren-level)) 380 (skip-chars-forward "^{") 381 (while (> (go-paren-level) start-nesting) 382 (forward-char) 383 (skip-chars-forward "^{") 0) 384 (if (and (= (go-paren-level) start-nesting) (= old-point (point))) 385 t)))))) 386 387 (defun go--indentation-for-opening-parenthesis () 388 "Return the semantic indentation for the current opening parenthesis. 389 390 If point is on an opening curly brace and said curly brace 391 belongs to a function declaration, the indentation of the func 392 keyword will be returned. Otherwise the indentation of the 393 current line will be returned." 394 (save-excursion 395 (if (go--at-function-definition) 396 (progn 397 (beginning-of-defun) 398 (current-indentation)) 399 (current-indentation)))) 400 401 (defun go-indentation-at-point () 402 (save-excursion 403 (let (start-nesting) 404 (back-to-indentation) 405 (setq start-nesting (go-paren-level)) 406 407 (cond 408 ((go-in-string-p) 409 (current-indentation)) 410 ((looking-at "[])}]") 411 (go-goto-opening-parenthesis) 412 (if (go-previous-line-has-dangling-op-p) 413 (- (current-indentation) tab-width) 414 (go--indentation-for-opening-parenthesis))) 415 ((progn (go--backward-irrelevant t) (looking-back go-dangling-operators-regexp)) 416 ;; only one nesting for all dangling operators in one operation 417 (if (go-previous-line-has-dangling-op-p) 418 (current-indentation) 419 (+ (current-indentation) tab-width))) 420 ((zerop (go-paren-level)) 421 0) 422 ((progn (go-goto-opening-parenthesis) (< (go-paren-level) start-nesting)) 423 (if (go-previous-line-has-dangling-op-p) 424 (current-indentation) 425 (+ (go--indentation-for-opening-parenthesis) tab-width))) 426 (t 427 (current-indentation)))))) 428 429 (defun go-mode-indent-line () 430 (interactive) 431 (let (indent 432 shift-amt 433 (pos (- (point-max) (point))) 434 (point (point)) 435 (beg (line-beginning-position))) 436 (back-to-indentation) 437 (if (go-in-string-or-comment-p) 438 (goto-char point) 439 (setq indent (go-indentation-at-point)) 440 (if (looking-at (concat go-label-regexp ":\\([[:space:]]*/.+\\)?$\\|case .+:\\|default:")) 441 (decf indent tab-width)) 442 (setq shift-amt (- indent (current-column))) 443 (if (zerop shift-amt) 444 nil 445 (delete-region beg (point)) 446 (indent-to indent)) 447 ;; If initial point was within line's indentation, 448 ;; position after the indentation. Else stay at same point in text. 449 (if (> (- (point-max) pos) (point)) 450 (goto-char (- (point-max) pos)))))) 451 452 (defun go-beginning-of-defun (&optional count) 453 (unless count (setq count 1)) 454 (let ((first t) failure) 455 (dotimes (i (abs count)) 456 (while (and (not failure) 457 (or first (go-in-string-or-comment-p))) 458 (if (>= count 0) 459 (progn 460 (go--backward-irrelevant) 461 (if (not (re-search-backward go-func-meth-regexp nil t)) 462 (setq failure t))) 463 (if (looking-at go-func-meth-regexp) 464 (forward-char)) 465 (if (not (re-search-forward go-func-meth-regexp nil t)) 466 (setq failure t))) 467 (setq first nil))) 468 (if (< count 0) 469 (beginning-of-line)) 470 (not failure))) 471 472 (defun go-end-of-defun () 473 (let (orig-level) 474 ;; It can happen that we're not placed before a function by emacs 475 (if (not (looking-at "func")) 476 (go-beginning-of-defun -1)) 477 (skip-chars-forward "^{") 478 (forward-char) 479 (setq orig-level (go-paren-level)) 480 (while (>= (go-paren-level) orig-level) 481 (skip-chars-forward "^}") 482 (forward-char)))) 483 484 ;;;###autoload 485 (define-derived-mode go-mode prog-mode "Go" 486 "Major mode for editing Go source text. 487 488 This mode provides (not just) basic editing capabilities for 489 working with Go code. It offers almost complete syntax 490 highlighting, indentation that is almost identical to gofmt and 491 proper parsing of the buffer content to allow features such as 492 navigation by function, manipulation of comments or detection of 493 strings. 494 495 In addition to these core features, it offers various features to 496 help with writing Go code. You can directly run buffer content 497 through gofmt, read godoc documentation from within Emacs, modify 498 and clean up the list of package imports or interact with the 499 Playground (uploading and downloading pastes). 500 501 The following extra functions are defined: 502 503 - `gofmt' 504 - `godoc' 505 - `go-import-add' 506 - `go-remove-unused-imports' 507 - `go-goto-imports' 508 - `go-play-buffer' and `go-play-region' 509 - `go-download-play' 510 - `godef-describe' and `godef-jump' 511 - `go-coverage' 512 513 If you want to automatically run `gofmt' before saving a file, 514 add the following hook to your emacs configuration: 515 516 \(add-hook 'before-save-hook 'gofmt-before-save) 517 518 If you want to use `godef-jump' instead of etags (or similar), 519 consider binding godef-jump to `M-.', which is the default key 520 for `find-tag': 521 522 \(add-hook 'go-mode-hook (lambda () 523 (local-set-key (kbd \"M-.\") #'godef-jump))) 524 525 Please note that godef is an external dependency. You can install 526 it with 527 528 go get code.google.com/p/rog-go/exp/cmd/godef 529 530 531 If you're looking for even more integration with Go, namely 532 on-the-fly syntax checking, auto-completion and snippets, it is 533 recommended that you look at goflymake 534 \(https://github.com/dougm/goflymake), gocode 535 \(https://github.com/nsf/gocode) and yasnippet-go 536 \(https://github.com/dominikh/yasnippet-go)" 537 538 ;; Font lock 539 (set (make-local-variable 'font-lock-defaults) 540 '(go--build-font-lock-keywords)) 541 542 ;; Indentation 543 (set (make-local-variable 'indent-line-function) #'go-mode-indent-line) 544 545 ;; Comments 546 (set (make-local-variable 'comment-start) "// ") 547 (set (make-local-variable 'comment-end) "") 548 (set (make-local-variable 'comment-use-syntax) t) 549 (set (make-local-variable 'comment-start-skip) "\\(//+\\|/\\*+\\)\\s *") 550 551 (set (make-local-variable 'beginning-of-defun-function) #'go-beginning-of-defun) 552 (set (make-local-variable 'end-of-defun-function) #'go-end-of-defun) 553 554 (set (make-local-variable 'parse-sexp-lookup-properties) t) 555 (if (boundp 'syntax-propertize-function) 556 (set (make-local-variable 'syntax-propertize-function) #'go-propertize-syntax)) 557 558 (set (make-local-variable 'go-dangling-cache) (make-hash-table :test 'eql)) 559 (add-hook 'before-change-functions (lambda (x y) (setq go-dangling-cache (make-hash-table :test 'eql))) t t) 560 561 562 (setq imenu-generic-expression 563 '(("type" "^type *\\([^ \t\n\r\f]*\\)" 1) 564 ("func" "^func *\\(.*\\) {" 1))) 565 (imenu-add-to-menubar "Index") 566 567 ;; Go style 568 (setq indent-tabs-mode t) 569 570 ;; Handle unit test failure output in compilation-mode 571 ;; 572 ;; Note the final t argument to add-to-list for append, ie put these at the 573 ;; *ends* of compilation-error-regexp-alist[-alist]. We want go-test to be 574 ;; handled first, otherwise other elements will match that don't work, and 575 ;; those alists are traversed in *reverse* order: 576 ;; http://lists.gnu.org/archive/html/bug-gnu-emacs/2001-12/msg00674.html 577 (when (and (boundp 'compilation-error-regexp-alist) 578 (boundp 'compilation-error-regexp-alist-alist)) 579 (add-to-list 'compilation-error-regexp-alist 'go-test t) 580 (add-to-list 'compilation-error-regexp-alist-alist 581 '(go-test . ("^\t+\\([^()\t\n]+\\):\\([0-9]+\\):? .*$" 1 2)) t))) 582 583 ;;;###autoload 584 (add-to-list 'auto-mode-alist (cons "\\.go\\'" 'go-mode)) 585 586 (defun go--apply-rcs-patch (patch-buffer) 587 "Apply an RCS-formatted diff from PATCH-BUFFER to the current 588 buffer." 589 (let ((target-buffer (current-buffer)) 590 ;; Relative offset between buffer line numbers and line numbers 591 ;; in patch. 592 ;; 593 ;; Line numbers in the patch are based on the source file, so 594 ;; we have to keep an offset when making changes to the 595 ;; buffer. 596 ;; 597 ;; Appending lines decrements the offset (possibly making it 598 ;; negative), deleting lines increments it. This order 599 ;; simplifies the forward-line invocations. 600 (line-offset 0)) 601 (save-excursion 602 (with-current-buffer patch-buffer 603 (goto-char (point-min)) 604 (while (not (eobp)) 605 (unless (looking-at "^\\([ad]\\)\\([0-9]+\\) \\([0-9]+\\)") 606 (error "invalid rcs patch or internal error in go--apply-rcs-patch")) 607 (forward-line) 608 (let ((action (match-string 1)) 609 (from (string-to-number (match-string 2))) 610 (len (string-to-number (match-string 3)))) 611 (cond 612 ((equal action "a") 613 (let ((start (point))) 614 (forward-line len) 615 (let ((text (buffer-substring start (point)))) 616 (with-current-buffer target-buffer 617 (decf line-offset len) 618 (goto-char (point-min)) 619 (forward-line (- from len line-offset)) 620 (insert text))))) 621 ((equal action "d") 622 (with-current-buffer target-buffer 623 (go--goto-line (- from line-offset)) 624 (incf line-offset len) 625 (go--delete-whole-line len))) 626 (t 627 (error "invalid rcs patch or internal error in go--apply-rcs-patch"))))))))) 628 629 (defun gofmt () 630 "Formats the current buffer according to the gofmt tool." 631 632 (interactive) 633 (let ((tmpfile (make-temp-file "gofmt" nil ".go")) 634 (patchbuf (get-buffer-create "*Gofmt patch*")) 635 (errbuf (get-buffer-create "*Gofmt Errors*")) 636 (coding-system-for-read 'utf-8) 637 (coding-system-for-write 'utf-8)) 638 639 (with-current-buffer errbuf 640 (setq buffer-read-only nil) 641 (erase-buffer)) 642 (with-current-buffer patchbuf 643 (erase-buffer)) 644 645 (write-region nil nil tmpfile) 646 647 ;; We're using errbuf for the mixed stdout and stderr output. This 648 ;; is not an issue because gofmt -w does not produce any stdout 649 ;; output in case of success. 650 (if (zerop (call-process gofmt-command nil errbuf nil "-w" tmpfile)) 651 (if (zerop (call-process-region (point-min) (point-max) "diff" nil patchbuf nil "-n" "-" tmpfile)) 652 (progn 653 (kill-buffer errbuf) 654 (message "Buffer is already gofmted")) 655 (go--apply-rcs-patch patchbuf) 656 (kill-buffer errbuf) 657 (message "Applied gofmt")) 658 (message "Could not apply gofmt. Check errors for details") 659 (gofmt--process-errors (buffer-file-name) tmpfile errbuf)) 660 661 (kill-buffer patchbuf) 662 (delete-file tmpfile))) 663 664 665 (defun gofmt--process-errors (filename tmpfile errbuf) 666 ;; Convert the gofmt stderr to something understood by the compilation mode. 667 (with-current-buffer errbuf 668 (goto-char (point-min)) 669 (insert "gofmt errors:\n") 670 (while (search-forward-regexp (concat "^\\(" (regexp-quote tmpfile) "\\):") nil t) 671 (replace-match (file-name-nondirectory filename) t t nil 1)) 672 (compilation-mode) 673 (display-buffer errbuf))) 674 675 ;;;###autoload 676 (defun gofmt-before-save () 677 "Add this to .emacs to run gofmt on the current buffer when saving: 678 (add-hook 'before-save-hook 'gofmt-before-save). 679 680 Note that this will cause go-mode to get loaded the first time 681 you save any file, kind of defeating the point of autoloading." 682 683 (interactive) 684 (when (eq major-mode 'go-mode) (gofmt))) 685 686 (defun godoc--read-query () 687 "Read a godoc query from the minibuffer." 688 ;; Compute the default query as the symbol under the cursor. 689 ;; TODO: This does the wrong thing for e.g. multipart.NewReader (it only grabs 690 ;; half) but I see no way to disambiguate that from e.g. foobar.SomeMethod. 691 (let* ((bounds (bounds-of-thing-at-point 'symbol)) 692 (symbol (if bounds 693 (buffer-substring-no-properties (car bounds) 694 (cdr bounds))))) 695 (completing-read (if symbol 696 (format "godoc (default %s): " symbol) 697 "godoc: ") 698 (go--old-completion-list-style (go-packages)) nil nil nil 'go-godoc-history symbol))) 699 700 (defun godoc--get-buffer (query) 701 "Get an empty buffer for a godoc query." 702 (let* ((buffer-name (concat "*godoc " query "*")) 703 (buffer (get-buffer buffer-name))) 704 ;; Kill the existing buffer if it already exists. 705 (when buffer (kill-buffer buffer)) 706 (get-buffer-create buffer-name))) 707 708 (defun godoc--buffer-sentinel (proc event) 709 "Sentinel function run when godoc command completes." 710 (with-current-buffer (process-buffer proc) 711 (cond ((string= event "finished\n") ;; Successful exit. 712 (goto-char (point-min)) 713 (view-mode 1) 714 (display-buffer (current-buffer) t)) 715 ((/= (process-exit-status proc) 0) ;; Error exit. 716 (let ((output (buffer-string))) 717 (kill-buffer (current-buffer)) 718 (message (concat "godoc: " output))))))) 719 720 ;;;###autoload 721 (defun godoc (query) 722 "Show go documentation for a query, much like M-x man." 723 (interactive (list (godoc--read-query))) 724 (unless (string= query "") 725 (set-process-sentinel 726 (start-process-shell-command "godoc" (godoc--get-buffer query) 727 (concat "godoc " query)) 728 'godoc--buffer-sentinel) 729 nil)) 730 731 (defun go-goto-imports () 732 "Move point to the block of imports. 733 734 If using 735 736 import ( 737 \"foo\" 738 \"bar\" 739 ) 740 741 it will move point directly behind the last import. 742 743 If using 744 745 import \"foo\" 746 import \"bar\" 747 748 it will move point to the next line after the last import. 749 750 If no imports can be found, point will be moved after the package 751 declaration." 752 (interactive) 753 ;; FIXME if there's a block-commented import before the real 754 ;; imports, we'll jump to that one. 755 756 ;; Generally, this function isn't very forgiving. it'll bark on 757 ;; extra whitespace. It works well for clean code. 758 (let ((old-point (point))) 759 (goto-char (point-min)) 760 (cond 761 ((re-search-forward "^import ()" nil t) 762 (backward-char 1) 763 'block-empty) 764 ((re-search-forward "^import ([^)]+)" nil t) 765 (backward-char 2) 766 'block) 767 ((re-search-forward "\\(^import \\([^\"]+ \\)?\"[^\"]+\"\n?\\)+" nil t) 768 'single) 769 ((re-search-forward "^[[:space:]\n]*package .+?\n" nil t) 770 (message "No imports found, moving point after package declaration") 771 'none) 772 (t 773 (goto-char old-point) 774 (message "No imports or package declaration found. Is this really a Go file?") 775 'fail)))) 776 777 (defun go-play-buffer () 778 "Like `go-play-region', but acts on the entire buffer." 779 (interactive) 780 (go-play-region (point-min) (point-max))) 781 782 (defun go-play-region (start end) 783 "Send the region to the Playground and stores the resulting 784 link in the kill ring." 785 (interactive "r") 786 (let* ((url-request-method "POST") 787 (url-request-extra-headers 788 '(("Content-Type" . "application/x-www-form-urlencoded"))) 789 (url-request-data 790 (encode-coding-string 791 (buffer-substring-no-properties start end) 792 'utf-8)) 793 (content-buf (url-retrieve 794 "http://play.golang.org/share" 795 (lambda (arg) 796 (cond 797 ((equal :error (car arg)) 798 (signal 'go-play-error (cdr arg))) 799 (t 800 (re-search-forward "\n\n") 801 (kill-new (format "http://play.golang.org/p/%s" (buffer-substring (point) (point-max)))) 802 (message "http://play.golang.org/p/%s" (buffer-substring (point) (point-max))))))))))) 803 804 ;;;###autoload 805 (defun go-download-play (url) 806 "Downloads a paste from the playground and inserts it in a Go 807 buffer. Tries to look for a URL at point." 808 (interactive (list (read-from-minibuffer "Playground URL: " (ffap-url-p (ffap-string-at-point 'url))))) 809 (with-current-buffer 810 (let ((url-request-method "GET") url-request-data url-request-extra-headers) 811 (url-retrieve-synchronously (concat url ".go"))) 812 (let ((buffer (generate-new-buffer (concat (car (last (split-string url "/"))) ".go")))) 813 (goto-char (point-min)) 814 (re-search-forward "\n\n") 815 (copy-to-buffer buffer (point) (point-max)) 816 (kill-buffer) 817 (with-current-buffer buffer 818 (go-mode) 819 (switch-to-buffer buffer))))) 820 821 (defun go-propertize-syntax (start end) 822 (save-excursion 823 (goto-char start) 824 (while (search-forward "\\" end t) 825 (put-text-property (1- (point)) (point) 'syntax-table (if (= (char-after) ?`) '(1) '(9)))))) 826 827 (defun go-import-add (arg import) 828 "Add a new import to the list of imports. 829 830 When called with a prefix argument asks for an alternative name 831 to import the package as. 832 833 If no list exists yet, one will be created if possible. 834 835 If an identical import has been commented, it will be 836 uncommented, otherwise a new import will be added." 837 838 ;; - If there's a matching `// import "foo"`, uncomment it 839 ;; - If we're in an import() block and there's a matching `"foo"`, uncomment it 840 ;; - Otherwise add a new import, with the appropriate syntax 841 (interactive 842 (list 843 current-prefix-arg 844 (replace-regexp-in-string "^[\"']\\|[\"']$" "" (completing-read "Package: " (go--old-completion-list-style (go-packages)))))) 845 (save-excursion 846 (let (as line import-start) 847 (if arg 848 (setq as (read-from-minibuffer "Import as: "))) 849 (if as 850 (setq line (format "%s \"%s\"" as import)) 851 (setq line (format "\"%s\"" import))) 852 853 (goto-char (point-min)) 854 (if (re-search-forward (concat "^[[:space:]]*//[[:space:]]*import " line "$") nil t) 855 (uncomment-region (line-beginning-position) (line-end-position)) 856 (case (go-goto-imports) 857 ('fail (message "Could not find a place to add import.")) 858 ('block-empty 859 (insert "\n\t" line "\n")) 860 ('block 861 (save-excursion 862 (re-search-backward "^import (") 863 (setq import-start (point))) 864 (if (re-search-backward (concat "^[[:space:]]*//[[:space:]]*" line "$") import-start t) 865 (uncomment-region (line-beginning-position) (line-end-position)) 866 (insert "\n\t" line))) 867 ('single (insert "import " line "\n")) 868 ('none (insert "\nimport (\n\t" line "\n)\n"))))))) 869 870 (defun go-root-and-paths () 871 (let* ((output (split-string (shell-command-to-string (concat go-command " env GOROOT GOPATH")) 872 "\n")) 873 (root (car output)) 874 (paths (split-string (cadr output) ":"))) 875 (append (list root) paths))) 876 877 (defun go--string-prefix-p (s1 s2 &optional ignore-case) 878 "Return non-nil if S1 is a prefix of S2. 879 If IGNORE-CASE is non-nil, the comparison is case-insensitive." 880 (eq t (compare-strings s1 nil nil 881 s2 0 (length s1) ignore-case))) 882 883 (defun go--directory-dirs (dir) 884 "Recursively return all subdirectories in DIR." 885 (if (file-directory-p dir) 886 (let ((dir (directory-file-name dir)) 887 (dirs '()) 888 (files (directory-files dir nil nil t))) 889 (dolist (file files) 890 (unless (member file '("." "..")) 891 (let ((file (concat dir "/" file))) 892 (if (file-directory-p file) 893 (setq dirs (append (cons file 894 (go--directory-dirs file)) 895 dirs)))))) 896 dirs) 897 '())) 898 899 900 (defun go-packages () 901 (sort 902 (delete-dups 903 (mapcan 904 (lambda (topdir) 905 (let ((pkgdir (concat topdir "/pkg/"))) 906 (mapcan (lambda (dir) 907 (mapcar (lambda (file) 908 (let ((sub (substring file (length pkgdir) -2))) 909 (unless (or (go--string-prefix-p "obj/" sub) (go--string-prefix-p "tool/" sub)) 910 (mapconcat #'identity (cdr (split-string sub "/")) "/")))) 911 (if (file-directory-p dir) 912 (directory-files dir t "\\.a$")))) 913 (if (file-directory-p pkgdir) 914 (go--directory-dirs pkgdir))))) 915 (go-root-and-paths))) 916 #'string<)) 917 918 (defun go-unused-imports-lines () 919 ;; FIXME Technically, -o /dev/null fails in quite some cases (on 920 ;; Windows, when compiling from within GOPATH). Practically, 921 ;; however, it has the same end result: There won't be a 922 ;; compiled binary/archive, and we'll get our import errors when 923 ;; there are any. 924 (reverse (remove nil 925 (mapcar 926 (lambda (line) 927 (if (string-match "^\\(.+\\):\\([[:digit:]]+\\): imported and not used: \".+\".*$" line) 928 (if (string= (file-truename (match-string 1 line)) (file-truename buffer-file-name)) 929 (string-to-number (match-string 2 line))))) 930 (split-string (shell-command-to-string 931 (concat go-command 932 (if (string-match "_test\.go$" buffer-file-truename) 933 " test -c" 934 " build -o /dev/null"))) "\n"))))) 935 936 (defun go-remove-unused-imports (arg) 937 "Removes all unused imports. If ARG is non-nil, unused imports 938 will be commented, otherwise they will be removed completely." 939 (interactive "P") 940 (save-excursion 941 (let ((cur-buffer (current-buffer)) flymake-state lines) 942 (when (boundp 'flymake-mode) 943 (setq flymake-state flymake-mode) 944 (flymake-mode-off)) 945 (save-some-buffers nil (lambda () (equal cur-buffer (current-buffer)))) 946 (if (buffer-modified-p) 947 (message "Cannot operate on unsaved buffer") 948 (setq lines (go-unused-imports-lines)) 949 (dolist (import lines) 950 (go--goto-line import) 951 (beginning-of-line) 952 (if arg 953 (comment-region (line-beginning-position) (line-end-position)) 954 (go--delete-whole-line))) 955 (message "Removed %d imports" (length lines))) 956 (if flymake-state (flymake-mode-on))))) 957 958 (defun godef--find-file-line-column (specifier other-window) 959 "Given a file name in the format of `filename:line:column', 960 visit FILENAME and go to line LINE and column COLUMN." 961 (if (not (string-match "\\(.+\\):\\([0-9]+\\):\\([0-9]+\\)" specifier)) 962 ;; We've only been given a directory name 963 (funcall (if other-window #'find-file-other-window #'find-file) specifier) 964 (let ((filename (match-string 1 specifier)) 965 (line (string-to-number (match-string 2 specifier))) 966 (column (string-to-number (match-string 3 specifier)))) 967 (with-current-buffer (funcall (if other-window #'find-file-other-window #'find-file) filename) 968 (go--goto-line line) 969 (beginning-of-line) 970 (forward-char (1- column)) 971 (if (buffer-modified-p) 972 (message "Buffer is modified, file position might not have been correct")))))) 973 974 (defun godef--call (point) 975 "Call godef, acquiring definition position and expression 976 description at POINT." 977 (if (go--xemacs-p) 978 (error "godef does not reliably work in XEmacs, expect bad results")) 979 (if (not (buffer-file-name (go--coverage-origin-buffer))) 980 (error "Cannot use godef on a buffer without a file name") 981 (let ((outbuf (get-buffer-create "*godef*"))) 982 (with-current-buffer outbuf 983 (erase-buffer)) 984 (call-process-region (point-min) 985 (point-max) 986 "godef" 987 nil 988 outbuf 989 nil 990 "-i" 991 "-t" 992 "-f" 993 (file-truename (buffer-file-name (go--coverage-origin-buffer))) 994 "-o" 995 (number-to-string (go--position-bytes (point)))) 996 (with-current-buffer outbuf 997 (split-string (buffer-substring-no-properties (point-min) (point-max)) "\n"))))) 998 999 (defun godef-describe (point) 1000 "Describe the expression at POINT." 1001 (interactive "d") 1002 (condition-case nil 1003 (let ((description (cdr (butlast (godef--call point) 1)))) 1004 (if (not description) 1005 (message "No description found for expression at point") 1006 (message "%s" (mapconcat #'identity description "\n")))) 1007 (file-error (message "Could not run godef binary")))) 1008 1009 (defun godef-jump (point &optional other-window) 1010 "Jump to the definition of the expression at POINT." 1011 (interactive "d") 1012 (condition-case nil 1013 (let ((file (car (godef--call point)))) 1014 (cond 1015 ((string= "-" file) 1016 (message "godef: expression is not defined anywhere")) 1017 ((string= "godef: no identifier found" file) 1018 (message "%s" file)) 1019 ((go--string-prefix-p "godef: no declaration found for " file) 1020 (message "%s" file)) 1021 ((go--string-prefix-p "error finding import path for " file) 1022 (message "%s" file)) 1023 (t 1024 (push-mark) 1025 (ring-insert find-tag-marker-ring (point-marker)) 1026 (godef--find-file-line-column file other-window)))) 1027 (file-error (message "Could not run godef binary")))) 1028 1029 (defun godef-jump-other-window (point) 1030 (interactive "d") 1031 (godef-jump point t)) 1032 1033 (defun go--goto-line (line) 1034 (goto-char (point-min)) 1035 (forward-line (1- line))) 1036 1037 (defun go--line-column-to-point (line column) 1038 (save-excursion 1039 (go--goto-line line) 1040 (forward-char (1- column)) 1041 (point))) 1042 1043 (defstruct go--covered 1044 start-line start-column end-line end-column covered count) 1045 1046 (defun go--coverage-file () 1047 "Return the coverage file to use, either by reading it from the 1048 current coverage buffer or by prompting for it." 1049 (if (boundp 'go--coverage-current-file-name) 1050 go--coverage-current-file-name 1051 (read-file-name "Coverage file: " nil nil t))) 1052 1053 (defun go--coverage-origin-buffer () 1054 "Return the buffer to base the coverage on." 1055 (or (buffer-base-buffer) (current-buffer))) 1056 1057 (defun go--coverage-face (count divisor) 1058 "Return the intensity face for COUNT when using DIVISOR 1059 to scale it to a range [0,10]. 1060 1061 DIVISOR scales the absolute cover count to values from 0 to 10. 1062 For DIVISOR = 0 the count will always translate to 8." 1063 (let* ((norm (cond 1064 ((= count 0) 1065 -0.1) ;; Uncovered code, set to -0.1 so n becomes 0. 1066 ((= divisor 0) 1067 0.8) ;; covermode=set, set to 0.8 so n becomes 8. 1068 (t 1069 (/ (log count) divisor)))) 1070 (n (1+ (floor (* norm 9))))) ;; Convert normalized count [0,1] to intensity [0,10] 1071 (concat "go-coverage-" (number-to-string n)))) 1072 1073 (defun go--coverage-make-overlay (range divisor) 1074 "Create a coverage overlay for a RANGE of covered/uncovered 1075 code. Uses DIVISOR to scale absolute counts to a [0,10] scale." 1076 (let* ((count (go--covered-count range)) 1077 (face (go--coverage-face count divisor)) 1078 (ov (make-overlay (go--line-column-to-point (go--covered-start-line range) 1079 (go--covered-start-column range)) 1080 (go--line-column-to-point (go--covered-end-line range) 1081 (go--covered-end-column range))))) 1082 1083 (overlay-put ov 'face face) 1084 (overlay-put ov 'help-echo (format "Count: %d" count)))) 1085 1086 (defun go--coverage-clear-overlays () 1087 "Remove existing overlays and put a single untracked overlay 1088 over the entire buffer." 1089 (remove-overlays) 1090 (overlay-put (make-overlay (point-min) (point-max)) 1091 'face 1092 'go-coverage-untracked)) 1093 1094 (defun go--coverage-parse-file (coverage-file file-name) 1095 "Parse COVERAGE-FILE and extract coverage information and 1096 divisor for FILE-NAME." 1097 (let (ranges 1098 (max-count 0)) 1099 (with-temp-buffer 1100 (insert-file-contents coverage-file) 1101 (go--goto-line 2) ;; Skip over mode 1102 (while (not (eobp)) 1103 (let* ((parts (split-string (buffer-substring (point-at-bol) (point-at-eol)) ":")) 1104 (file (car parts)) 1105 (rest (split-string (nth 1 parts) "[., ]"))) 1106 1107 (destructuring-bind 1108 (start-line start-column end-line end-column num count) 1109 (mapcar #'string-to-number rest) 1110 1111 (when (and (string= (file-name-nondirectory file) file-name)) 1112 (if (> count max-count) 1113 (setq max-count count)) 1114 (push (make-go--covered :start-line start-line 1115 :start-column start-column 1116 :end-line end-line 1117 :end-column end-column 1118 :covered (/= count 0) 1119 :count count) 1120 ranges))) 1121 1122 (forward-line))) 1123 1124 (list ranges (if (> max-count 0) (log max-count) 0))))) 1125 1126 (defun go-coverage (&optional coverage-file) 1127 "Open a clone of the current buffer and overlay it with 1128 coverage information gathered via go test -coverprofile=COVERAGE-FILE. 1129 1130 If COVERAGE-FILE is nil, it will either be inferred from the 1131 current buffer if it's already a coverage buffer, or be prompted 1132 for." 1133 (interactive) 1134 (let* ((cur-buffer (current-buffer)) 1135 (origin-buffer (go--coverage-origin-buffer)) 1136 (gocov-buffer-name (concat (buffer-name origin-buffer) "<gocov>")) 1137 (coverage-file (or coverage-file (go--coverage-file))) 1138 (ranges-and-divisor (go--coverage-parse-file 1139 coverage-file 1140 (file-name-nondirectory (buffer-file-name origin-buffer)))) 1141 (cov-mtime (nth 5 (file-attributes coverage-file))) 1142 (cur-mtime (nth 5 (file-attributes (buffer-file-name origin-buffer))))) 1143 1144 (if (< (float-time cov-mtime) (float-time cur-mtime)) 1145 (message "Coverage file is older than the source file.")) 1146 1147 (with-current-buffer (or (get-buffer gocov-buffer-name) 1148 (make-indirect-buffer origin-buffer gocov-buffer-name t)) 1149 (set (make-local-variable 'go--coverage-current-file-name) coverage-file) 1150 1151 (save-excursion 1152 (go--coverage-clear-overlays) 1153 (dolist (range (car ranges-and-divisor)) 1154 (go--coverage-make-overlay range (cadr ranges-and-divisor)))) 1155 1156 (if (not (eq cur-buffer (current-buffer))) 1157 (display-buffer (current-buffer) #'display-buffer-reuse-window))))) 1158 1159 (provide 'go-mode)