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[elpa] externals/javaimp a3bfdc2352 1/2: Clean up syntax / parsing setti
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From: |
Filipp Gunbin |
|
Subject: |
[elpa] externals/javaimp a3bfdc2352 1/2: Clean up syntax / parsing settings |
|
Date: |
Fri, 13 May 2022 19:06:09 -0400 (EDT) |
branch: externals/javaimp
commit a3bfdc2352197065bfc396ae85b2515980410da4
Author: Filipp Gunbin <fgunbin@fastmail.fm>
Commit: Filipp Gunbin <fgunbin@fastmail.fm>
Clean up syntax / parsing settings
---
javaimp-parse.el | 171 ++++++++++++++++++++++++++-----------------------------
javaimp-tests.el | 11 ++++
javaimp.el | 10 ++++
tests/imenu.el | 8 +--
tests/parse.el | 22 +++----
tests/tests.el | 5 +-
6 files changed, 115 insertions(+), 112 deletions(-)
diff --git a/javaimp-parse.el b/javaimp-parse.el
index 984dfa5579..0e1cb1350e 100644
--- a/javaimp-parse.el
+++ b/javaimp-parse.el
@@ -70,21 +70,19 @@ regexp. First group is directive, second group is
identifier."
(javaimp-parse--directive-regexp "import\\(?:[[:space:]]+static\\)?"))
-(defvar javaimp-syntax-table
- (make-syntax-table java-mode-syntax-table) ;TODO don't depend on cc-mode
- "Javaimp syntax table")
-
-(defvar javaimp--arglist-syntax-table
- (let ((st (make-syntax-table javaimp-syntax-table)))
+(defvar javaimp--parse-syntax-table
+ ;; TODO don't depend on cc-mode
+ (let ((st (make-syntax-table java-mode-syntax-table)))
+ ;; To be able to skip over generic types as over lists
(modify-syntax-entry ?< "(>" st)
(modify-syntax-entry ?> ")<" st)
- (modify-syntax-entry ?. "_" st) ; separates parts of fully-qualified type
- ;; Override prefix syntax so that scan-sexps right after @ in
- ;; annotation doesn't ignore it.
+ ;; Dot separates parts of fully-qualified type
+ (modify-syntax-entry ?. "_" st) ;
+ ;; Override prefix syntax so that scan-sexps backwards right after
+ ;; @ in annotation doesn't ignore it.
(modify-syntax-entry ?@ "_" st)
st)
- "Enables parsing angle brackets as lists")
-
+ "Syntax table used in parsing.")
(defvar-local javaimp-parse--dirty-pos nil
"Marker which points to a buffer position after which all parsed
@@ -123,7 +121,7 @@ non-nil, then name parsing is skipped."
(let ((substr (buffer-substring-no-properties beg end)))
(with-temp-buffer
(insert substr)
- (with-syntax-table javaimp--arglist-syntax-table
+ (with-syntax-table javaimp--parse-syntax-table
(ignore-errors
(let (res)
(while (progn
@@ -237,7 +235,7 @@ is unchanged."
(catch 'found
(while (javaimp-parse--rsb-keyword regexp bound t)
(let ((scan-pos (match-end 0)))
- (with-syntax-table javaimp--arglist-syntax-table
+ (with-syntax-table javaimp--parse-syntax-table
;; Skip over any number of lists, which may be exceptions
;; in "throws", or something like that
(while (and scan-pos (<= scan-pos brace-pos))
@@ -259,38 +257,37 @@ point (but not farther than BOUND). Matches inside
comments /
strings are skipped. Return the beginning of the match (then the
point is also at that position) or nil (then the point is left
unchanged)."
- (with-syntax-table javaimp-syntax-table
- (let ((state (syntax-ppss))
- prev-semi pos res)
- ;; Move out of any comment/string
- (when (nth 8 state)
- (goto-char (nth 8 state))
- (setq state (syntax-ppss)))
- ;; If we skip a previous scope (including unnamed initializers),
- ;; or reach enclosing scope start, we'll fail the check in the
- ;; below loop. But a semicolon, which delimits statements, will
- ;; just be skipped by scan-sexps, so find it and use as bound.
- ;; If it is in another scope, that's not a problem, for the same
- ;; reasons as described above.
- (setq prev-semi (save-excursion
- (javaimp-parse--rsb-keyword ";" bound t))
- bound (when (or bound prev-semi)
- (apply #'max
- (delq nil
- (list bound
- (and prev-semi (1+ prev-semi)))))))
- ;; Go back by sexps
- (with-syntax-table javaimp--arglist-syntax-table
- (while (and (ignore-errors
- (setq pos (scan-sexps (point) -1)))
- (or (not bound) (>= pos bound))
- (or (member (char-after pos)
- '(?@ ?\( ;annotation type / args
- ?<)) ;generic type
- ;; keyword / identifier first char
- (= (syntax-class (syntax-after pos)) 2))) ;word
- (goto-char (setq res pos))))
- res)))
+ (let ((state (syntax-ppss))
+ prev-semi pos res)
+ ;; Move out of any comment/string
+ (when (nth 8 state)
+ (goto-char (nth 8 state))
+ (setq state (syntax-ppss)))
+ ;; If we skip a previous scope (including unnamed initializers),
+ ;; or reach enclosing scope start, we'll fail the check in the
+ ;; below loop. But a semicolon, which delimits statements, will
+ ;; just be skipped by scan-sexps, so find it and use as bound.
+ ;; If it is in another scope, that's not a problem, for the same
+ ;; reasons as described above.
+ (setq prev-semi (save-excursion
+ (javaimp-parse--rsb-keyword ";" bound t))
+ bound (when (or bound prev-semi)
+ (apply #'max
+ (delq nil
+ (list bound
+ (and prev-semi (1+ prev-semi)))))))
+ ;; Go back by sexps
+ (with-syntax-table javaimp--parse-syntax-table
+ (while (and (ignore-errors
+ (setq pos (scan-sexps (point) -1)))
+ (or (not bound) (>= pos bound))
+ (or (memql (char-after pos)
+ '(?@ ?\( ;annotation type / args
+ ?<)) ;generic type
+ ;; keyword / identifier first char
+ (= (syntax-class (syntax-after pos)) 2))) ;word
+ (goto-char (setq res pos))))
+ res))
;;; Scopes
@@ -490,7 +487,6 @@ lambdas are also recognized as such."
:start nil)))
-
(defun javaimp-parse--scopes (count)
"Attempts to parse COUNT enclosing scopes at point.
Returns most nested one, with its parents sets accordingly. If
@@ -545,57 +541,57 @@ nothing."
(setq res (cdr res)))
parent)))
+
(defun javaimp-parse--all-scopes ()
- "Parses all scopes in this buffer which are after
+ "Parse all scopes in this buffer which are after
`javaimp-parse--dirty-pos', if it points anywhere. Makes it
-point nowhere when done."
- (unless javaimp-parse--dirty-pos ;init on first use
- (setq javaimp-parse--dirty-pos (point-min-marker))
- (javaimp-parse--setup-buffer))
+point nowhere when done. All entry-point functions will usually
+call this function first."
+ (unless javaimp-parse--dirty-pos
+ (setq javaimp-parse--dirty-pos (point-min-marker)))
(when (marker-position javaimp-parse--dirty-pos)
(with-silent-modifications ;we update only private props
(remove-text-properties javaimp-parse--dirty-pos (point-max)
'(javaimp-parse-scope nil))
(goto-char (point-max))
- (let ((parse-sexp-ignore-comments t)
- ;; Can be removed when we no longer rely on cc-mode
+ (let (;; Can be removed when we no longer rely on cc-mode
(parse-sexp-lookup-properties nil))
- (with-syntax-table javaimp-syntax-table
- (while (javaimp-parse--rsb-keyword "{" javaimp-parse--dirty-pos t)
- (save-excursion
- (forward-char)
- ;; Set props at this brace and all the way up
- (javaimp-parse--scopes nil))))))
+ (while (javaimp-parse--rsb-keyword "{" javaimp-parse--dirty-pos t)
+ (save-excursion
+ (forward-char)
+ ;; Set props at this brace and all the way up
+ (javaimp-parse--scopes nil)))))
(set-marker javaimp-parse--dirty-pos nil)))
-(defun javaimp-parse--setup-buffer ()
- ;; FIXME This may be done in major/minor mode setup
- (setq syntax-ppss-table javaimp-syntax-table)
- (setq-local multibyte-syntax-as-symbol t)
- (add-hook 'after-change-functions #'javaimp-parse--update-dirty-pos))
+(defun javaimp-parse--update-dirty-pos (beg _end _old-len)
+ "Function to add to `after-change-functions' hook."
+ (when (and javaimp-parse--dirty-pos
+ (or (not (marker-position javaimp-parse--dirty-pos))
+ (< beg javaimp-parse--dirty-pos)))
+ (set-marker javaimp-parse--dirty-pos beg)))
+
(defun javaimp-parse--enclosing-scope (&optional pred)
"Return innermost enclosing scope matching PRED."
- (with-syntax-table javaimp-syntax-table
- (let ((state (syntax-ppss)))
- ;; Move out of any comment/string
- (when (nth 8 state)
- (goto-char (nth 8 state))
- (setq state (syntax-ppss)))
- (catch 'found
- (while t
- (let ((res (save-excursion
- (javaimp-parse--scopes nil))))
- (when (and (javaimp-scope-p res)
- (or (null pred)
- (funcall pred res)))
- (throw 'found res))
- ;; Go up until we get something
- (if (nth 1 state)
- (progn
- (goto-char (nth 1 state))
- (setq state (syntax-ppss)))
- (throw 'found nil))))))))
+ (let ((state (syntax-ppss)))
+ ;; Move out of any comment/string
+ (when (nth 8 state)
+ (goto-char (nth 8 state))
+ (setq state (syntax-ppss)))
+ (catch 'found
+ (while t
+ (let ((res (save-excursion
+ (javaimp-parse--scopes nil))))
+ (when (and (javaimp-scope-p res)
+ (or (null pred)
+ (funcall pred res)))
+ (throw 'found res))
+ ;; Go up until we get something
+ (if (nth 1 state)
+ (progn
+ (goto-char (nth 1 state))
+ (setq state (syntax-ppss)))
+ (throw 'found nil)))))))
(defun javaimp-parse--class-abstract-methods ()
(goto-char (point-max))
@@ -637,13 +633,6 @@ point nowhere when done."
(goto-char (nth 1 (syntax-ppss))))))
res))
-(defun javaimp-parse--update-dirty-pos (beg _end _old-len)
- "Function to add to `after-change-functions' hook."
- (when (and javaimp-parse--dirty-pos
- (or (not (marker-position javaimp-parse--dirty-pos))
- (< beg javaimp-parse--dirty-pos)))
- (set-marker javaimp-parse--dirty-pos beg)))
-
;; Functions intended to be called from other parts of javaimp. They
;; do not preserve excursion / restriction - it's the caller's
diff --git a/javaimp-tests.el b/javaimp-tests.el
index 9542ae2774..4ca01ad20f 100644
--- a/javaimp-tests.el
+++ b/javaimp-tests.el
@@ -21,4 +21,15 @@ supplying that directory name as the only arg."
(funcall handler tmpdir)
(error "Cannot untar test data file %s: %d" filename rc)))))
+(defmacro javaimp-with-temp-buffer (file &rest body)
+ "Execute BODY in temporary buffer with `javaimp-minor-mode'
+turned on. If FILE is non-nil then its contents are inserted."
+ (declare (debug t) (indent 1))
+ `(with-temp-buffer
+ (when ,file
+ (insert-file-contents (ert-resource-file ,file)))
+ (java-mode)
+ (javaimp-minor-mode)
+ ,@body))
+
(provide 'javaimp-tests)
diff --git a/javaimp.el b/javaimp.el
index b281c3b430..5e9b2fb7f5 100644
--- a/javaimp.el
+++ b/javaimp.el
@@ -129,6 +129,7 @@
;; presented in a nested fashion, instead of a flat list (default is
;; flat list).
+
;;; Code:
(require 'javaimp-util)
@@ -1224,6 +1225,7 @@ PREV-INDEX gives the index of the method itself."
"C-M-a" #'beginning-of-defun
"C-M-e" #'end-of-defun)
+
;;;###autoload
(define-minor-mode javaimp-minor-mode
"Javaimp minor mode.
@@ -1247,7 +1249,12 @@ defun javadoc to be included in the narrowed region when
using
#'javaimp-end-of-defun)
(add-function :override (local 'add-log-current-defun-function)
#'javaimp-add-log-current-defun)
+ (add-hook 'after-change-functions #'javaimp-parse--update-dirty-pos
nil t)
(add-hook 'xref-backend-functions #'javaimp-xref--backend nil t)
+ (setq-local parse-sexp-ignore-comments t)
+ (setq-local multibyte-syntax-as-symbol t)
+ ;; Discard parse state, if any
+ (setq javaimp-parse--dirty-pos nil)
;; There're spaces within generic types, just show them
(setq-local imenu-space-replacement nil))
(remove-function (local 'imenu-create-index-function)
@@ -1258,7 +1265,10 @@ defun javadoc to be included in the narrowed region when
using
#'javaimp-end-of-defun)
(remove-function (local 'add-log-current-defun-function)
#'javaimp-add-log-current-defun)
+ (remove-hook 'after-change-functions #'javaimp-parse--update-dirty-pos t)
(remove-hook 'xref-backend-functions #'javaimp-xref--backend t)
+ (kill-local-variable 'parse-sexp-ignore-comments)
+ (kill-local-variable 'multibyte-syntax-as-symbol)
(kill-local-variable 'imenu-space-replacement)))
diff --git a/tests/imenu.el b/tests/imenu.el
index f1d5d9ed83..cbf7fb3639 100644
--- a/tests/imenu.el
+++ b/tests/imenu.el
@@ -6,8 +6,8 @@
;; Maintainer: Filipp Gunbin <fgunbin@fastmail.fm>
(require 'ert)
-(require 'ert-x)
(require 'javaimp)
+(require 'javaimp-tests)
(defun javaimp-test-imenu--simplify-entries (alist)
(dolist (elt alist)
@@ -18,8 +18,7 @@
(ert-deftest javaimp-imenu-create-index ()
- (let ((actual (with-temp-buffer
- (insert-file-contents (ert-resource-file "test1.java"))
+ (let ((actual (javaimp-with-temp-buffer "test1.java"
(let ((imenu-use-markers nil))
(javaimp-imenu-create-index))))
(expected-names
@@ -45,8 +44,7 @@
(should (equal (nth i expected-names) (car (nth i actual)))))))
(ert-deftest javaimp-imenu-create-index-use-sub-alists ()
- (let ((actual (with-temp-buffer
- (insert-file-contents (ert-resource-file "test1.java"))
+ (let ((actual (javaimp-with-temp-buffer "test1.java"
(let ((imenu-use-markers nil)
(javaimp-imenu-use-sub-alists t))
(javaimp-imenu-create-index))))
diff --git a/tests/parse.el b/tests/parse.el
index 62f6abd180..b4c0b99121 100644
--- a/tests/parse.el
+++ b/tests/parse.el
@@ -6,9 +6,8 @@
;; Maintainer: Filipp Gunbin <fgunbin@fastmail.fm>
(require 'ert)
-(require 'ert-x)
-(require 'javaimp-parse)
-(require 'javaimp-util)
+(require 'javaimp)
+(require 'javaimp-tests)
;; Tests for parse helpers
@@ -35,7 +34,7 @@
("int" . "i")
("String[][]" . "arr"))
))
- (with-temp-buffer
+ (javaimp-with-temp-buffer nil
(insert (car data))
(should (equal (javaimp-parse--arglist (point-min) (point-max))
(cdr data))))))
@@ -57,19 +56,18 @@
Exception4<? super Exception5>>")
("Exception6")
("Exception7<Exception8>"))))
- (with-temp-buffer
+ (javaimp-with-temp-buffer nil
(insert (car data))
(should (equal (javaimp-parse--arglist (point-min) (point-max) t)
(cdr data))))))
-
;; Tests for scope parsers
(defun javaimp-test-parse--scope (parser &rest test-items)
(declare (indent 1))
(dolist (item test-items)
- (with-temp-buffer
+ (javaimp-with-temp-buffer nil
(insert (nth 0 item))
(let* ((javaimp-parse--scope-hook
(lambda (arg)
@@ -281,7 +279,7 @@ throws E1 {"
(nreverse res)))
(ert-deftest javaimp-parse-get-package ()
- (with-temp-buffer
+ (javaimp-with-temp-buffer nil
(insert "
package foo.bar.baz ;
//package commented.line;
@@ -292,7 +290,7 @@ package commented.block;
(should (equal (javaimp-parse-get-package) "foo.bar.baz"))))
(ert-deftest javaimp-parse-get-imports ()
- (with-temp-buffer
+ (javaimp-with-temp-buffer nil
(insert "
import some.class1 ;
import static some.class.fun1;
@@ -316,8 +314,7 @@ import static some_class.fun_2; // comment
("some_class.fun_2" . static))))))
(ert-deftest javaimp-parse-get-all-scopes ()
- (with-temp-buffer
- (insert-file-contents (ert-resource-file "test1.java"))
+ (javaimp-with-temp-buffer "test1.java"
(should-not javaimp-parse--dirty-pos)
;;
;; parse full buffer
@@ -363,8 +360,7 @@ import static some_class.fun_2; // comment
;; eob
((goto-char (point-max))))))
(dolist (testcase testcases)
- (with-temp-buffer
- (insert-file-contents (ert-resource-file "test1.java"))
+ (javaimp-with-temp-buffer "test1.java"
(eval (car testcase)) ;move
(should
(equal (cdr testcase)
diff --git a/tests/tests.el b/tests/tests.el
index 02ee0ccffc..f25b114049 100644
--- a/tests/tests.el
+++ b/tests/tests.el
@@ -6,12 +6,11 @@
;; Maintainer: Filipp Gunbin <fgunbin@fastmail.fm>
(require 'ert)
-(require 'ert-x)
(require 'javaimp)
+(require 'javaimp-tests)
(ert-deftest javaimp-collect-idents ()
- (with-temp-buffer
- (insert-file-contents (ert-resource-file "test1.java"))
+ (javaimp-with-temp-buffer "test1.java"
(should (equal (mapcar #'javaimp--ident-to-fqcn
(javaimp--collect-idents
(javaimp-scope-defun-p) (current-buffer) t))