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deprecate scm_internal_dynamic_wind

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* libguile/dynwind.c:
* libguile/dynwind.h:

* libguile/deprecated.h (scm_t_inner):
* libguile/deprecated.c (scm_internal_dynamic_wind): Deprecate, as the
  scm_dynwind API is better, and this API encourages users to stuff SCM
  values into pointers.
This commit is contained in:
Andy Wingo 2011-05-13 12:16:56 +02:00
parent b5df9cda41
commit b2feee6bc0
4 changed files with 36 additions and 25 deletions
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23
libguile/deprecated.c
View file

@ -2574,6 +2574,29 @@ scm_struct_create_handle (SCM obj)
SCM
scm_internal_dynamic_wind (scm_t_guard before,
scm_t_inner inner,
scm_t_guard after,
void *inner_data,
void *guard_data)
{
SCM ans;
scm_c_issue_deprecation_warning
("`scm_internal_dynamic_wind' is deprecated. "
"Use the `scm_dynwind_begin' / `scm_dynwind_end' API instead.");
scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE);
scm_dynwind_rewind_handler (before, guard_data, SCM_F_WIND_EXPLICITLY);
scm_dynwind_unwind_handler (after, guard_data, SCM_F_WIND_EXPLICITLY);
ans = inner (inner_data);
scm_dynwind_end ();
return ans;
}
void
scm_i_init_deprecated ()
{

11
libguile/deprecated.h
View file

@ -143,6 +143,17 @@ SCM_DEPRECATED SCM scm_make_gsubr_with_generic (const char *name,
SCM_DEPRECATED SCM scm_create_hook (const char* name, int n_args);
/* Deprecated 13-05-2011 because it's better just to scm_dynwind_begin.
That also avoids the temptation to stuff pointers in an SCM. */
typedef SCM (*scm_t_inner) (void *);
SCM_DEPRECATED SCM scm_internal_dynamic_wind (scm_t_guard before,
scm_t_inner inner,
scm_t_guard after,
void *inner_data,
void *guard_data);
#define SCM_LIST0 SCM_EOL
#define SCM_LIST1(e0) scm_cons ((e0), SCM_EOL)
#define SCM_LIST2(e0, e1) scm_cons2 ((e0), (e1), SCM_EOL)

19
libguile/dynwind.c
View file

@ -1,4 +1,4 @@
/* Copyright (C) 1995,1996,1998,1999,2000,2001, 2003, 2004, 2006, 2008, 2010 Free Software Foundation, Inc.
/* Copyright (C) 1995,1996,1998,1999,2000,2001, 2003, 2004, 2006, 2008, 2010, 2011 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
@ -68,23 +68,6 @@ scm_dynamic_wind (SCM in_guard, SCM thunk, SCM out_guard)
}
#undef FUNC_NAME
SCM
scm_internal_dynamic_wind (scm_t_guard before,
scm_t_inner inner,
scm_t_guard after,
void *inner_data,
void *guard_data)
{
SCM ans;
scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE);
scm_dynwind_rewind_handler (before, guard_data, SCM_F_WIND_EXPLICITLY);
scm_dynwind_unwind_handler (after, guard_data, SCM_F_WIND_EXPLICITLY);
ans = inner (inner_data);
scm_dynwind_end ();
return ans;
}
/* Frames and winders. */
static scm_t_bits tc16_frame;

8
libguile/dynwind.h
View file

@ -3,7 +3,7 @@
#ifndef SCM_DYNWIND_H
#define SCM_DYNWIND_H
/* Copyright (C) 1995,1996,1998,1999,2000,2003,2004, 2006, 2008 Free Software Foundation, Inc.
/* Copyright (C) 1995,1996,1998,1999,2000,2003,2004, 2006, 2008, 2011 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
@ -28,14 +28,8 @@
typedef void (*scm_t_guard) (void *);
typedef SCM (*scm_t_inner) (void *);
SCM_API SCM scm_dynamic_wind (SCM thunk1, SCM thunk2, SCM thunk3);
SCM_API SCM scm_internal_dynamic_wind (scm_t_guard before,
scm_t_inner inner,
scm_t_guard after,
void *inner_data,
void *guard_data);
SCM_API void scm_dowinds (SCM to, long delta);
SCM_INTERNAL void scm_i_dowinds (SCM to, long delta,
void (*turn_func) (void *), void *data);