[Emacs-diffs] Changes to emacs/lispref/advice.texi [lexbind]

[Miles Bader]

Index: emacs/lispref/advice.texi
diff -c emacs/lispref/advice.texi:1.13.8.1 emacs/lispref/advice.texi:1.13.8.2
*** emacs/lispref/advice.texi:1.13.8.1  Fri Apr  4 01:20:41 2003
--- emacs/lispref/advice.texi   Tue Oct 14 19:10:11 2003
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*** 36,42 ****
  * Preactivation::           Preactivation is a way of speeding up the
                                loading of compiled advice.
  * Argument Access in Advice:: How advice can access the function's arguments.
! * Subr Arguments::          Accessing arguments when advising a primitive.
  * Combined Definition::     How advice is implemented.
  @end menu
  
--- 36,42 ----
  * Preactivation::           Preactivation is a way of speeding up the
                                loading of compiled advice.
  * Argument Access in Advice:: How advice can access the function's arguments.
! * Advising Primitives::     Accessing arguments when advising a primitive.
  * Combined Definition::     How advice is implemented.
  @end menu
  
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*** 331,342 ****
  @cindex advice, activating
  
  By default, advice does not take effect when you define it---only when
! you @dfn{activate} advice for the function that was advised.  You can
! request the activation of advice for a function when you define the
! advice, by specifying the @code{activate} flag in the @code{defadvice}.
! But normally you activate the advice for a function by calling the
! function @code{ad-activate} or one of the other activation commands
! listed below.
  
  Separating the activation of advice from the act of defining it permits
  you to add several pieces of advice to one function efficiently, without
--- 331,343 ----
  @cindex advice, activating
  
  By default, advice does not take effect when you define it---only when
! you @dfn{activate} advice for the function that was advised.  However
! the advice will be automatically activated if the function is defined
! or redefined later.  You can request the activation of advice for a
! function when you define the advice, by specifying the @code{activate}
! flag in the @code{defadvice}.  But normally you activate the advice
! for a function by calling the function @code{ad-activate} or one of
! the other activation commands listed below.
  
  Separating the activation of advice from the act of defining it permits
  you to add several pieces of advice to one function efficiently, without
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*** 416,423 ****
  
  @deffn Command ad-start-advice
  Turn on automatic advice activation when a function is defined or
! redefined.  If you turn on this mode, then advice takes effect
! immediately when defined.
  @end deffn
  
  @deffn Command ad-stop-advice
--- 417,423 ----
  
  @deffn Command ad-start-advice
  Turn on automatic advice activation when a function is defined or
! redefined.  This is the default mode.
  @end deffn
  
  @deffn Command ad-stop-advice
***************
*** 656,671 ****
    These argument constructs are not really implemented as Lisp macros.
  Instead they are implemented specially by the advice mechanism.
  
! @node Subr Arguments
! @section Definition of Subr Argument Lists
  
!   When the advice facility constructs the combined definition, it needs
! to know the argument list of the original function.  This is not always
! possible for primitive functions.  When advice cannot determine the
! argument list, it uses @code{(&rest ad-subr-args)}, which always works
! but is inefficient because it constructs a list of the argument values.
! You can use @code{ad-define-subr-args} to declare the proper argument
! names for a primitive function:
  
  @defun ad-define-subr-args function arglist
  This function specifies that @var{arglist} should be used as the
--- 656,678 ----
    These argument constructs are not really implemented as Lisp macros.
  Instead they are implemented specially by the advice mechanism.
  
! @node Advising Primitives
! @section Advising Primitives
  
!   Advising a primitive function (also called a ``subr'') is risky.
! Some primitive functions are used by the advice mechanism; advising
! them could cause an infinite recursion.  Also, many primitive
! functions are called directly from C code.  Calls to the primitive
! from Lisp code will take note of the advice, but calls from C code
! will ignore the advice.
! 
! When the advice facility constructs the combined definition, it needs
! to know the argument list of the original function.  This is not
! always possible for primitive functions.  When advice cannot determine
! the argument list, it uses @code{(&rest ad-subr-args)}, which always
! works but is inefficient because it constructs a list of the argument
! values.  You can use @code{ad-define-subr-args} to declare the proper
! argument names for a primitive function:
  
  @defun ad-define-subr-args function arglist
  This function specifies that @var{arglist} should be used as the
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*** 744,746 ****
--- 751,757 ----
  executed even if some previous piece of advice had an error or a
  non-local exit.  If any around-advice is protected, then the whole
  around-advice onion is protected as a result.
+ 
+ @ignore
+    arch-tag: 80c135c2-f1c3-4f8d-aa85-f8d8770d307f
+ @end ignore