Solidity enhancements

lisp/init-solidity.el

 ;(define-key map (kbd "C-c C-g") 'solidity-estimate-gas-at-point)
 
 (setq solidity-solc-path "/usr/local/bin/solc-static-linux-0.4.24")
-(setq solidity-solium-path "/home/bingen/.nvm/versions/node/v9.4.0/bin/solium")
+(setq solidity-solium-path "~/.nvm/versions/node/v9.4.0/bin/solium")
 
 (setq solidity-flycheck-solc-checker-active t)
 (setq solidity-flycheck-solium-checker-active t)
 
 (setq flycheck-solidity-solc-addstd-contracts t)
-(setq flycheck-solidity-solium-soliumrcfile "/home/bingen/workspace/aragonOS/.soliumrc.json")
+(setq flycheck-solidity-solium-soliumrcfile "~/workspace/aragonOS/.soliumrc.json")
 
 (add-hook 'solidity-mode-hook
           (lambda ()
 
 (add-hook 'solidity-mode-hook 'solidity-custom-line-length)
 
-(provide 'init-solidity)
 
+;; See this issue about indentation and general solidity style:
+;; https://github.com/ethereum/emacs-solidity/issues/32
+;; Create ethereum c/c++ style
+(defconst ethereum-c-style
+  '((c-tab-always-indent        . t)
+    ;; always syntactically analyze and indent macros
+    (c-syntactic-indentation-in-macros . t)
+    ;; auto align backslashes for continuation
+    (c-auto-align-backslashes . t)
+    (c-comment-only-line-offset . 4)
+    (c-hanging-braces-alist     . ((substatement-open after)
+                                   (brace-list-open)))
+    (c-hanging-colons-alist     . ((member-init-intro before)
+                                   (inher-intro)
+                                   (case-label after)
+                                   (label after)
+                                   (access-label after)))
+    (c-cleanup-list             . (scope-operator
+                                   empty-defun-braces
+                                   defun-close-semi))
+    (c-offsets-alist            . (
+                                   ;; lineup the current argument line under the
+                                   ;; first argument
+                                   ;; (arglist-close . c-lineup-arglist)
+                                   (arglist-close . 0) ;; <-- or not
+                                   (arglist-cont-nonempty . 4)
+                                   (substatement-open . 0)
+                                   (case-label        . 0)
+                                   (label             . 0)
+                                   (block-open        . 4)
+                                   ;; Don't indent first brace of a class's function
+                                   (inline-open       . 0)
+                                   ;; all opens should be indented
+                                   (brace-list-open   . 4)
+                                   ;; indent after case
+                                   (statement-case-intro   . 4)
+                                   ;; indent after entering a block
+                                   (statement-block-intro   . 4)
+                                   ;; indent after entering a function definition
+                                   (defun-block-intro   . 4)
+                                   ;; indent when entering class/struct
+                                   (inclass   . 4)
+                                   ;; don't indent the first line in a topmost construct
+                                   (topmost-intro . 0)
+                                   ;; first line after if/while/for/do/else
+                                   (substatement . 4)
+                                   ;; don't indent when in extern scope
+                                   (inextern-lang . 0)
+                                   ;; when ; does not end a stmt do indent
+                                   (statement-cont . 4)
+                                   ;; c++ constructor member initi no indent
+                                   (member-init-intro . 4)
+                                   (member-init-cont . 4)
+                                   ;; don't indent c++ namespace
+                                   (innamespace . 0)
+                                   ;; don't indent first comments
+                                   (comment-intro . 0)
+                                   ))
+    ;; echo syntactic info when presing TAB. If `t' helps with debugging.
+    (c-echo-syntactic-information-p . t))
+  "Ethereum C/C++ programming style.")
+(c-add-style "ethereum" ethereum-c-style)
+
+(defun ethereum-c-mode-hook ()
+  "C/C++ hook for ethereum development."
+  (subword-mode 1) ;all word movement goes across Capitalized words
+;;  (setq-default c-indent-tabs-mode t)     ; tabs instead of spaces
+;;  (setq-default indent-tabs-mode t)       ; tabs instead of spaces
+;;  (setq-default c-indent-level 4)         ; A TAB is equivalent to 4 spaces
+;;  (setq-default c-basic-offset 4)
+;;  (setq-default tab-width 4)              ; Default tab width is 4
+  (setq-default c-argdecl-indent 0)       ; Do not indent argument decl's extra
+  (setq-default c-tab-always-indent t)
+;;  (setq-default backward-delete-function nil) ; DO NOT expand tabs when deleting
+  (c-set-style "ethereum"))
+
+(add-hook 'solidity-mode-hook 'ethereum-c-mode-hook)
+
+(provide 'init-solidity)
 ;;; init-solidity.el ends here