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;;; semantic/wisent/java-tags.el --- Java LALR parser for Emacs
;; Copyright (C) 2001-2006, 2009-2021 Free Software Foundation, Inc.
;; Author: David Ponce <david@dponce.com>
;; Created: 15 Dec 2001
;; Keywords: syntax
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;;
;;; History:
;;
;;; Code:
(require 'semantic/wisent)
(require 'semantic/wisent/javat-wy)
(require 'semantic/java)
;;;;
;;;; Simple parser error reporting function
;;;;
(defun wisent-java-parse-error (msg)
"Error reporting function called when a parse error occurs.
MSG is the message string to report."
;; (let ((error-start (nth 2 wisent-input)))
;; (if (number-or-marker-p error-start)
;; (goto-char error-start)))
(message msg)
;;(debug)
)
;;;;
;;;; Local context
;;;;
(define-mode-local-override semantic-get-local-variables
java-mode ()
"Get local values from a specific context.
Parse the current context for `field_declaration' nonterminals to
collect tags, such as local variables or prototypes.
This function override `get-local-variables'."
(let ((vars nil)
(ct (semantic-current-tag))
;; We want nothing to do with funny syntaxing while doing this.
(semantic-unmatched-syntax-hook nil))
(while (not (semantic-up-context (point) 'function))
(save-excursion
(forward-char 1)
(setq vars
(append (semantic-parse-region
(point)
(save-excursion (semantic-end-of-context) (point))
'field_declaration
0 t)
vars))))
;; Add 'this' if in a fcn
(when (semantic-tag-of-class-p ct 'function)
;; Append a new tag THIS into our space.
(setq vars (cons (semantic-tag-new-variable
"this" (semantic-tag-name (semantic-current-tag-parent))
nil)
vars)))
vars))
;;;
;;; Analyzer and type cache support
;;;
(define-mode-local-override semantic-analyze-split-name java-mode (name)
"Split up tag names on colon . boundaries."
(let ((ans (split-string name "\\.")))
(if (= (length ans) 1)
name
(delete "" ans))))
(define-mode-local-override semantic-analyze-unsplit-name java-mode (namelist)
"Assemble the list of names NAMELIST into a namespace name."
(mapconcat 'identity namelist "."))
;;;;
;;;; Semantic integration of the Java LALR parser
;;;;
;; In semantic/imenu.el, not part of Emacs.
(defvar semantic-imenu-summary-function)
;;;###autoload
(defun wisent-java-default-setup ()
"Hook run to setup Semantic in `java-mode'.
Use the alternate LALR(1) parser."
(wisent-java-tags-wy--install-parser)
(setq
;; Lexical analysis
semantic-lex-number-expression semantic-java-number-regexp
semantic-lex-analyzer 'wisent-java-tags-lexer
;; Parsing
semantic-tag-expand-function 'semantic-java-expand-tag
;; Environment
semantic-imenu-summary-function 'semantic-format-tag-prototype
imenu-create-index-function 'semantic-create-imenu-index
semantic-type-relation-separator-character '(".")
semantic-command-separation-character ";"
;; speedbar and imenu buckets name
semantic-symbol->name-assoc-list-for-type-parts
;; in type parts
'((type . "Classes")
(variable . "Variables")
(function . "Methods"))
semantic-symbol->name-assoc-list
;; everywhere
(append semantic-symbol->name-assoc-list-for-type-parts
'((include . "Imports")
(package . "Package")))
;; navigation inside 'type children
senator-step-at-tag-classes '(function variable)
;; Remove 'recursive from the default semanticdb find throttle
;; since java imports never recurse.
semanticdb-find-default-throttle
(remq 'recursive (default-value 'semanticdb-find-default-throttle))
)
;; Setup javadoc stuff
(semantic-java-doc-setup))
(provide 'semantic/wisent/java-tags)
;; Local variables:
;; generated-autoload-file: "../loaddefs.el"
;; generated-autoload-load-name: "semantic/wisent/java-tags"
;; End:
;;; semantic/wisent/java-tags.el ends here
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