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/* -*- mode: c; indent-tabs-mode: t; c-basic-offset: 8; -*- */
static gchar *
get_struct_package (GIBaseInfo* info)
{
const gchar *basename, *package, *name;
basename = g_base_info_get_namespace (info);
package = get_package_for_basename (basename);
if (!package)
return NULL;
name = g_base_info_get_name (info);
return g_strconcat (package, "::", name, NULL);
}
/* FIXME: Should g-i offer API for this? */
static gboolean
is_struct_disguised (GIBaseInfo* info)
{
return 0 == g_struct_info_get_n_fields (info) &&
0 == g_struct_info_get_size (info);
}
/* This may call Perl code (via get_field), so it needs to be wrapped with
* PUTBACK/SPAGAIN by the caller. */
static SV *
struct_to_sv (GIBaseInfo* info,
GIInfoType info_type,
gpointer pointer,
gboolean own)
{
HV *hv;
dwarn ("pointer = %p\n", pointer);
if (pointer == NULL) {
return &PL_sv_undef;
}
if (is_struct_disguised (info)) {
SV *sv;
gchar *package;
dwarn (" disguised struct\n");
g_assert (!own);
package = get_struct_package (info);
g_assert (package);
sv = newSV (0);
sv_setref_pv (sv, package, pointer);
g_free (package);
return sv;
}
hv = newHV ();
switch (info_type) {
case GI_INFO_TYPE_BOXED:
case GI_INFO_TYPE_STRUCT:
{
gint i, n_fields =
g_struct_info_get_n_fields ((GIStructInfo *) info);
for (i = 0; i < n_fields; i++) {
GIFieldInfo *field_info;
SV *sv;
field_info =
g_struct_info_get_field ((GIStructInfo *) info, i);
dwarn (" field %d (%s)\n", i, g_base_info_get_name (field_info));
/* FIXME: Check GIFieldInfoFlags. */
/* FIXME: Is it right to use GI_TRANSFER_NOTHING
* here? */
sv = get_field (field_info, pointer,
GI_TRANSFER_NOTHING);
if (gperl_sv_is_defined (sv)) {
const gchar *name;
name = g_base_info_get_name (
(GIBaseInfo *) field_info);
gperl_hv_take_sv (hv, name, strlen (name), sv);
}
g_base_info_unref ((GIBaseInfo *) field_info);
}
break;
}
case GI_INFO_TYPE_UNION:
ccroak ("%s: unions not handled yet", G_STRFUNC);
break;
default:
ccroak ("%s: unhandled info type %d", G_STRFUNC, info_type);
}
if (own) {
/* FIXME: Is it correct to just call g_free here? What if the
* thing was allocated via GSlice? */
g_free (pointer);
}
return newRV_noinc ((SV *) hv);
}
static gpointer
sv_to_struct (GITransfer transfer,
GIBaseInfo * info,
GIInfoType info_type,
SV * sv)
{
HV *hv;
gsize size = 0;
GITransfer field_transfer;
gpointer pointer = NULL;
dwarn ("sv = %p\n", sv);
if (!gperl_sv_is_defined (sv))
return NULL;
if (is_struct_disguised (info)) {
gchar *package;
dwarn (" disguised struct\n");
package = get_struct_package (info);
g_assert (package);
if (!gperl_sv_is_ref (sv) || !sv_derived_from (sv, package))
ccroak ("Cannot convert scalar %p to an object of type %s",
sv, package);
g_free (package);
return INT2PTR (void *, SvIV ((SV *) SvRV (sv)));
}
if (!gperl_sv_is_hash_ref (sv))
ccroak ("need a hash ref to convert to struct of type %s",
g_base_info_get_name (info));
hv = (HV *) SvRV (sv);
switch (info_type) {
case GI_INFO_TYPE_BOXED:
case GI_INFO_TYPE_STRUCT:
size = g_struct_info_get_size ((GIStructInfo *) info);
break;
case GI_INFO_TYPE_UNION:
size = g_union_info_get_size ((GIStructInfo *) info);
break;
default:
g_assert_not_reached ();
}
dwarn (" size = %"G_GSIZE_FORMAT"\n", size);
field_transfer = GI_TRANSFER_NOTHING;
dwarn (" transfer = %d\n", transfer);
switch (transfer) {
case GI_TRANSFER_EVERYTHING:
field_transfer = GI_TRANSFER_EVERYTHING;
/* fall through */
case GI_TRANSFER_CONTAINER:
/* FIXME: What if there's a special allocator for the record?
* Like GSlice? */
pointer = g_malloc0 (size);
break;
default:
pointer = gperl_alloc_temp (size);
break;
}
switch (info_type) {
case GI_INFO_TYPE_BOXED:
case GI_INFO_TYPE_STRUCT:
{
gint i, n_fields =
g_struct_info_get_n_fields ((GIStructInfo *) info);
for (i = 0; i < n_fields; i++) {
GIFieldInfo *field_info;
const gchar *field_name;
SV **svp;
field_info = g_struct_info_get_field (
(GIStructInfo *) info, i);
/* FIXME: Check GIFieldInfoFlags. */
field_name = g_base_info_get_name (
(GIBaseInfo *) field_info);
dwarn (" field %d (%s)\n", i, field_name);
svp = hv_fetch (hv, field_name, strlen (field_name), 0);
if (svp && gperl_sv_is_defined (*svp)) {
set_field (field_info, pointer,
field_transfer, *svp);
}
g_base_info_unref ((GIBaseInfo *) field_info);
}
break;
}
case GI_INFO_TYPE_UNION:
ccroak ("%s: unions not handled yet", G_STRFUNC);
break;
default:
ccroak ("%s: unhandled info type %d", G_STRFUNC, info_type);
}
return pointer;
}
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