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bug#60765: closed (CC Mode 5.35.2 (Java//l); Java incorrect type recogni


From: GNU bug Tracking System
Subject: bug#60765: closed (CC Mode 5.35.2 (Java//l); Java incorrect type recognition)
Date: Tue, 17 Jan 2023 15:57:02 +0000

Your message dated Tue, 17 Jan 2023 15:56:04 +0000
with message-id <Y8bFFK7ddmpshGtt@ACM>
and subject line Re: bug#60765: CC Mode 5.35.2 (Java//l); Java incorrect type 
recognition
has caused the debbugs.gnu.org bug report #60765,
regarding CC Mode 5.35.2 (Java//l); Java incorrect type recognition
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs@gnu.org.)


-- 
60765: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=60765
GNU Bug Tracking System
Contact help-debbugs@gnu.org with problems
--- Begin Message --- Subject: CC Mode 5.35.2 (Java//l); Java incorrect type recognition Date: Fri, 13 Jan 2023 09:31:53 +0800
Package: cc-mode

I thought this was only a problem in C Mode, but apparently I'm
mistaken.

Insert the following text into a Java mode buffer:

class Foo
{
  public void
  viewLayout (int left, int top, int right, int bottom)
  {
    int rectWidth, rectHeight;

    synchronized (this)
      {
        rect.left = left;
        rect.top = top;
        rect.right = right;
        rect.bottom = bottom;
      }


    EmacsNative.sendConfigureNotify (this.handle,
                                     System.currentTimeMillis (),
                                     left, top, rectWidth,
                                     rectHeight);
  }
}

go to the line immediately above EmacsNative.sendConfigureNotify.  Then,
type:

  TAB r e c t W i d t h;

`rectHeight' and `viewLayout' will appear in c-found-types.  Thanks.

Emacs  : GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu)
 of 2023-01-13
Package: CC Mode 5.35.2 (Java//l)
Buffer Style: java
c-emacs-features: (pps-extended-state col-0-paren posix-char-classes 
gen-string-delim gen-comment-delim syntax-properties category-properties 1-bit)

current state:
==============
(setq
 c-basic-offset 4
 c-comment-only-line-offset '(0 . 0)
 c-indent-comment-alist '((anchored-comment column . 0) (end-block space . 1)
                          (cpp-end-block space . 2))
 c-indent-comments-syntactically-p nil
 c-block-comment-prefix "* "
 c-comment-prefix-regexp '((pike-mode . "//+!?\\|\\**") (awk-mode . "#+")
                           (other . "//+\\|\\**"))
 c-doc-comment-style '((java-mode . javadoc) (pike-mode . autodoc)
                       (c-mode . gtkdoc) (c++-mode . gtkdoc))
 c-cleanup-list '(scope-operator)
 c-hanging-braces-alist '((brace-list-open) (brace-entry-open)
                          (statement-cont) (substatement-open after)
                          (block-close . c-snug-do-while)
                          (extern-lang-open after) (namespace-open after)
                          (module-open after) (composition-open after)
                          (inexpr-class-open after)
                          (inexpr-class-close before) (arglist-cont-nonempty))
 c-hanging-colons-alist nil
 c-hanging-semi&comma-criteria '(c-semi&comma-inside-parenlist)
 c-backslash-column 48
 c-backslash-max-column 72
 c-special-indent-hook nil
 c-label-minimum-indentation 1
 c-offsets-alist '((inexpr-class . +)
                   (inexpr-statement . +)
                   (lambda-intro-cont . +)
                   (inlambda . 0)
                   (template-args-cont c-lineup-template-args +)
                   (incomposition . +)
                   (inmodule . +)
                   (innamespace . +)
                   (inextern-lang . +)
                   (composition-close . 0)
                   (module-close . 0)
                   (namespace-close . 0)
                   (extern-lang-close . 0)
                   (composition-open . 0)
                   (module-open . 0)
                   (namespace-open . 0)
                   (extern-lang-open . 0)
                   (objc-method-call-cont
                    c-lineup-ObjC-method-call-colons
                    c-lineup-ObjC-method-call
                    +
                    )
                   (objc-method-args-cont . c-lineup-ObjC-method-args)
                   (objc-method-intro . [0])
                   (friend . 0)
                   (cpp-define-intro c-lineup-cpp-define +)
                   (cpp-macro-cont . +)
                   (cpp-macro . [0])
                   (inclass . +)
                   (stream-op . c-lineup-streamop)
                   (arglist-cont-nonempty
                    c-lineup-gcc-asm-reg
                    c-lineup-arglist
                    )
                   (arglist-cont c-lineup-gcc-asm-reg 0)
                   (comment-intro
                    c-lineup-knr-region-comment
                    c-lineup-comment
                    )
                   (catch-clause . 0)
                   (else-clause . 0)
                   (do-while-closure . 0)
                   (case-label . 0)
                   (substatement . +)
                   (statement-case-intro . +)
                   (statement . 0)
                   (brace-entry-open . 0)
                   (brace-list-entry . 0)
                   (brace-list-close . 0)
                   (brace-list-open . 0)
                   (block-close . 0)
                   (block-open . 0)
                   (inher-intro . +)
                   (member-init-cont . c-lineup-multi-inher)
                   (member-init-intro . +)
                   (annotation-var-cont . +)
                   (annotation-top-cont . 0)
                   (topmost-intro . 0)
                   (knr-argdecl . 0)
                   (inline-close . 0)
                   (class-close . 0)
                   (class-open . 0)
                   (defun-block-intro . +)
                   (defun-close . 0)
                   (defun-open . 0)
                   (c . c-lineup-C-comments)
                   (string . c-lineup-dont-change)
                   (func-decl-cont . c-lineup-java-throws)
                   (inher-cont . c-lineup-java-inher)
                   (access-label . 0)
                   (brace-list-intro
                    first
                    c-lineup-2nd-brace-entry-in-arglist
                    c-lineup-class-decl-init-+
                    +
                    )
                   (arglist-close . c-lineup-arglist)
                   (arglist-intro . c-lineup-arglist-intro-after-paren)
                   (statement-cont . +)
                   (statement-case-open . +)
                   (label . +)
                   (substatement-label . +)
                   (substatement-open . +)
                   (knr-argdecl-intro . 5)
                   (statement-block-intro . +)
                   (topmost-intro-cont . +)
                   (inline-open . 0)
                   )
 c-buffer-is-cc-mode 'java-mode
 c-tab-always-indent t
 c-syntactic-indentation t
 c-syntactic-indentation-in-macros t
 c-ignore-auto-fill '(string cpp code)
 c-auto-align-backslashes t
 c-backspace-function 'backward-delete-char-untabify
 c-delete-function 'delete-char
 c-electric-pound-behavior nil
 c-default-style '((java-mode . "java") (awk-mode . "awk") (other . "gnu"))
 c-enable-xemacs-performance-kludge-p nil
 c-old-style-variable-behavior nil
 defun-prompt-regexp nil
 tab-width 8
 comment-column 32
 parse-sexp-ignore-comments t
 parse-sexp-lookup-properties t
 auto-fill-function nil
 comment-multi-line t
 comment-start-skip "\\(?://+\\|/\\*+\\)\\s *"
 fill-prefix nil
 fill-column 70
 paragraph-start "[     ]*\\(//+\\|\\**\\)[     ]*\\(@[a-zA-Z]+\\>\\|$\\)\\|^\f"
 adaptive-fill-mode t
 adaptive-fill-regexp "[        ]*\\(//+\\|\\**\\)[     ]*\\([  
]*\\([-–!|#%;>*·•‣⁃◦]+[         ]*\\)*\\)"
 )



--- End Message ---
--- Begin Message --- Subject: Re: bug#60765: CC Mode 5.35.2 (Java//l); Java incorrect type recognition Date: Tue, 17 Jan 2023 15:56:04 +0000
Hello, Po.

On Tue, Jan 17, 2023 at 13:14:51 +0800, Po Lu wrote:
> Alan Mackenzie <acm@muc.de> writes:

[ .... ]

> > Yes.  With the "unsafe-maybe" mechanism added to CC Mode late last year,
> > this was a fairly simple bug to fix.  I've taken the liberty of
> > committing the fix to the emacs-29 branch with:

> > commit c1d32d9a20dc94d403725c288d168451b916c034 (HEAD -> emacs-29, 
> > origin/emacs-29, origin/HEAD)
> > Author: Alan Mackenzie <acm@muc.de>
> > Date:   Mon Jan 16 17:44:44 2023 +0000

> >     CC Mode: Prevent ids in temporary "declarators" getting into 
> > c-found-types

> > , though I haven't yet closed the bug.  I'd be grateful if you could
> > update your emacs-29 branch with this fix, run your real Java code in
> > it, and confirm that the bug is indeed fixed.  Thanks!


> Thanks, this seems to work here.

Thanks for the testing!  I'm closing the bug with this post.

-- 
Alan Mackenzie (Nuremberg, Germany).


--- End Message ---

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