Mercurial > hg > xemacs-beta
view lwlib/xlwradioP.h @ 5566:4654c01af32b
Improve the implementation, documentation of #'labels, #'flet.
lisp/ChangeLog addition:
2011-09-07 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el:
* bytecomp.el (for-effect): Move this earlier in the file, it's
referenced in byte-compile-initial-macro-environment.
* bytecomp.el (byte-compile-initial-macro-environment):
In the byte-compile-macro-environment definition for #'labels, put
off the compiling the lambda bodies until the point where the rest
of the form is being compiled, allowing the lambda bodies to
access appropriate values for byte-compile-bound-variables, and
reducing excessive warning about free variables.
Add a byte-compile-macro-environment definition for #'flet. This
modifies byte-compile-function-environment appropriately, and
warns about bindings of functions that have macro definitions in
the current environment, about functions that have byte codes, and
about functions that have byte-compile methods (which may not do
what the user wants at runtime).
* bytecomp.el (byte-compile-funcall):
If FUNCTION is constant, call #'byte-compile-callargs-warn if
that's appropriate, giving warnings about problems with calling
functions bound with #'labels.
* cl-macs.el:
* cl-macs.el (flet):
Mention the main difference from Common Lisp, that the bindings
are dynamic, not lexical. Counsel the use of #'labels, not #'flet,
for this and other reasons. Explain the limited single use case for
#'flet. Cross-reference to bytecomp.el in a comment.
* cl-macs.el (labels):
Go into detail on which functions may be called from
where. Explain how to access the function definition of a label
within FORM. Add a comment cross-referencing to bytecomp.el.
man/ChangeLog addition:
2011-09-07 Aidan Kehoe <kehoea@parhasard.net>
* cl.texi (Function Bindings):
Move #'labels first, describe it in more detail, explaining that
it is to be preferred over #'flet, and explaining why.
Explain that dynamic bindings with #'flet will also not work when
functions are accessed through their bytecodes.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Wed, 07 Sep 2011 16:26:45 +0100 |
| parents | 308d34e9f07d |
| children |
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/* Radio Widget for XEmacs. Copyright (C) 1999 Edward A. Falk This file is part of XEmacs. XEmacs 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. XEmacs 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 XEmacs. If not, see <http://www.gnu.org/licenses/>. */ /* * RadioP.h - Private definitions for Radio widget * * Author: Edward A. Falk * falk@falconer.vip.best.com * * Date: June 30, 1997 * */ #ifndef _XawRadioP_h #define _XawRadioP_h #include "xlwradio.h" #include ATHENA_ToggleP_h_ /*********************************************************************** * * Radio Widget Private Data * ***********************************************************************/ /* Already in Xaw/ToggleP.h, and not used by us. #define streq(a, b) ( strcmp((a), (b)) == 0 ) */ typedef void (*XawDiamondProc) (Widget); void RadioSet (Widget w, XEvent *event, String *params, /* unused */ Cardinal *num_params); /* unused */ void RadioUnset (Widget w, XEvent *event, String *params, /* unused */ Cardinal *num_params); /* unused */ /************************************ * * Class structure * ***********************************/ /* New fields for the Radio widget class record */ typedef struct _RadioClass { Dimension dsize ; /* diamond size */ XawDiamondProc drawDiamond ; /* TODO: 3-d and xaw-xpm features? */ XtPointer extension; } RadioClassPart; #define XtInheritDrawDiamond ((XawDiamondProc)_XtInherit) /* Full class record declaration */ typedef struct _RadioClassRec { CoreClassPart core_class; SimpleClassPart simple_class; #ifdef _ThreeDP_h ThreeDClassPart threeD_class; #endif LabelClassPart label_class; CommandClassPart command_class; ToggleClassPart toggle_class; RadioClassPart radio_class; } RadioClassRec; extern RadioClassRec radioClassRec; /*************************************** * * Instance (widget) structure * **************************************/ /* New fields for the Radio widget record */ typedef struct { /* resources */ /* TODO: 3-d and xaw-xpm features? */ /* private data */ XtPointer extension; } RadioPart; /* Full widget declaration */ typedef struct _RadioRec { CorePart core; SimplePart simple; #ifdef _ThreeDP_h ThreeDPart threeD; #endif LabelPart label; CommandPart command; TogglePart toggle; RadioPart radio; } RadioRec; #endif /* _XawRadioP_h */