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Prepare structs for new finalization API

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* libguile/struct.h:
* libguile/struct.c (scm_i_finalize_struct): New helper.
(struct_finalizer_trampoline): Implement as shim.
This commit is contained in:
Andy Wingo 2025-05-02 15:12:19 +02:00
parent 5e97645b81
commit 9774b3e551
2 changed files with 10 additions and 4 deletions
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11
libguile/struct.c
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@ -310,16 +310,21 @@ SCM_DEFINE (scm_struct_vtable_p, "struct-vtable?", 1, 0, 0,
/* Finalization: invoke the finalizer of the struct pointed to by PTR. */
static void
struct_finalizer_trampoline (void *ptr, void *unused_data)
void
scm_i_finalize_struct (struct scm_thread *thread, SCM obj)
{
SCM obj = PTR2SCM (ptr);
scm_t_struct_finalize finalize = SCM_STRUCT_FINALIZER (obj);
if (finalize)
finalize (obj);
}
static void
struct_finalizer_trampoline (void *ptr, void *data)
{
scm_i_finalize_struct (SCM_I_CURRENT_THREAD, PTR2SCM (ptr));
}
/* A struct is a sequence of words preceded by a pointer to the struct's
vtable. The vtable reference is tagged with the struct tc3. */
static SCM

3
libguile/struct.h
View file

@ -1,7 +1,7 @@
#ifndef SCM_STRUCT_H
#define SCM_STRUCT_H
/* Copyright 1995,1997,1999-2001,2006-2013,2015,2017-2018
/* Copyright 1995,1997,1999-2001,2006-2013,2015,2017-2018,2025
Free Software Foundation, Inc.
This file is part of Guile.
@ -188,6 +188,7 @@ SCM_API void scm_print_struct (SCM exp, SCM port, scm_print_state *);
SCM_INTERNAL SCM scm_i_struct_equalp (SCM s1, SCM s2);
SCM_INTERNAL unsigned long scm_struct_ihashq (SCM, unsigned long, void *);
SCM_INTERNAL void scm_i_struct_inherit_vtable_magic (SCM vtable, SCM obj);
SCM_INTERNAL void scm_i_finalize_struct (struct scm_thread *thread, SCM obj);
SCM_INTERNAL void scm_init_struct (void);
#endif /* SCM_STRUCT_H */